*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Deep Obsidian & Slate Palette (Human-Crafted Senior Developer) */
    --bg-primary: #07090e;
    --bg-secondary: #0d121c;
    --bg-card: rgba(15, 23, 42, 0.72);
    --bg-card-hover: rgba(30, 41, 59, 0.85);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(255, 255, 255, 0.08);
    
    /* Common Brand Colors */
    --accent: #38bdf8;
    --accent-dark: #0284c7;
    --accent-glow: rgba(56, 189, 248, 0.16);
    --accent-secondary: #818cf8;
    --accent-secondary-glow: rgba(129, 140, 248, 0.16);
    --gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(56, 189, 248, 0.08), rgba(129, 140, 248, 0.08));
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --font-main: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.4), 0 1px 0 0 rgba(255, 255, 255, 0.06) inset;
    --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.6), 0 1px 0 0 rgba(255, 255, 255, 0.08) inset;
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #edf2f7;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-card-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --accent: #0284c7;
    --accent-dark: #0369a1;
    --accent-glow: rgba(2, 132, 199, 0.12);
    --accent-secondary: #6366f1;
    --accent-secondary-glow: rgba(99, 102, 241, 0.15);
    --gradient: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
    --gradient-subtle: linear-gradient(135deg, rgba(2, 132, 199, 0.08), rgba(99, 102, 241, 0.08));
    --shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.06), 0 1px 0 0 rgba(0, 0, 0, 0.04) inset;
    --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.08), 0 1px 0 0 rgba(0, 0, 0, 0.04) inset;
}

/* Base setup */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    font-size: 16px;
    touch-action: pan-x pan-y;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

@media (max-width: 1024px) {
    html { font-size: 15px; }
}
@media (max-width: 768px) {
    html { font-size: 14px; scroll-padding-top: 60px; }
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    touch-action: pan-x pan-y;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    transition: background-color 0.4s ease, color 0.4s ease;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-inner {
    text-align: center;
    width: 360px;
    max-width: 90%;
    padding: 20px;
}

.preloader-logo {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 24px;
    animation: logoPulse 1.5s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { opacity: 1; text-shadow: 0 0 20px var(--accent-glow); }
    50% { opacity: 0.7; text-shadow: 0 0 40px var(--accent-glow); }
}

.preloader-terminal {
    text-align: left;
    margin-bottom: 20px;
    min-height: 90px;
    background: rgba(0, 0, 0, 0.3);
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.terminal-line {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    opacity: 0;
    transform: translateX(-10px);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.terminal-line.visible {
    animation: terminalType 0.35s ease forwards;
}

@keyframes terminalType {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.terminal-line:last-child.visible {
    color: var(--success);
}

.preloader-bar {
    width: 100%;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.preloader-progress {
    height: 100%;
    background: var(--gradient);
    border-radius: 2px;
    width: 0;
    transition: width 0.3s ease;
}

/* Scroll Progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: var(--gradient);
    z-index: 1001;
    width: 0;
    transition: width 0.05s linear;
}

/* Section Subtitle & Headings */
.section-title {
    font-size: clamp(1.85rem, 3.5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    text-align: center;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 60%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

[data-theme="light"] .section-title {
    background: linear-gradient(135deg, #0f172a 0%, #334155 70%, #64748b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 600px;
    margin: 0 auto 8px;
    line-height: 1.6;
}

.section-line {
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, #38bdf8, #818cf8);
    margin: 14px auto 44px;
    border-radius: 99px;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.35);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-main);
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.35);
}

.btn-outline {
    border: 1px solid var(--accent);
    color: var(--accent);
    background: rgba(0, 212, 255, 0.05);
}

.btn-outline:hover {
    background: var(--accent);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

.btn-terminal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: var(--font-mono);
}

.btn-terminal:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* ==================== TOP SCROLL PROGRESS BAR ==================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, #00d4ff 0%, #a855f7 50%, #22c55e 100%);
    z-index: 10002;
    box-shadow: 0 0 12px rgba(0, 212, 255, 0.8), 0 0 4px rgba(168, 85, 247, 0.6);
    pointer-events: none;
    transition: width 0.08s linear;
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 12px 0;
    transition: var(--transition);
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.94);
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .navbar {
    background: rgba(248, 250, 252, 0.88);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(248, 250, 252, 0.96);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--accent);
    transition: var(--transition);
    flex-shrink: 0;
}

.nav-logo:hover {
    text-shadow: 0 0 15px var(--accent-glow);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 9px;
    border-radius: 6px;
    font-size: 0.80rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.2;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
    background: var(--accent-glow);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.nav-terminal-btn, .lang-toggle, .theme-toggle, .nav-cmd-btn, .sound-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 5px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 18px;
    color: var(--accent);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    transition: var(--transition);
    height: 32px;
    box-sizing: border-box;
}

.theme-toggle, .sound-toggle {
    width: 32px;
    height: 32px;
    padding: 0;
    border-radius: 50%;
}

.sound-toggle.muted {
    color: var(--text-muted);
    border-color: var(--border);
}

.nav-cmd-btn {
    padding: 4px 8px;
    border-radius: 8px;
    gap: 6px;
    color: var(--text-secondary);
}

.kbd-badge {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.65rem;
    font-family: var(--font-mono);
    color: var(--accent);
    font-weight: 700;
}

.nav-terminal-btn:hover, .lang-toggle:hover, .theme-toggle:hover, .nav-cmd-btn:hover, .sound-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-1px);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px;
    z-index: 1002;
    transition: var(--transition);
}

.hamburger .bar {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Slide-out Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100%;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    z-index: 1001;
    transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -5px 0 25px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
}

.mobile-drawer.active {
    right: 0;
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
}

.drawer-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px;
}

.drawer-close:hover {
    color: var(--danger);
}

.mobile-drawer-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.mobile-nav-link i {
    width: 20px;
    color: var(--accent);
    font-size: 1rem;
}

.mobile-nav-link:hover, .mobile-nav-link.active {
    color: var(--accent);
    background: var(--accent-glow);
    transform: translateX(4px);
}

.drawer-quick-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--border);
}

.drawer-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.drawer-action-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.drawer-action-btn.wa-btn {
    background: rgba(37, 211, 102, 0.1);
    color: #25d366;
    border-color: rgba(37, 211, 102, 0.3);
}

.drawer-action-btn.wa-btn:hover {
    background: #25d366;
    color: #fff;
}

/* Nav Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Mobile Bottom Nav */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-top: 1px solid var(--border);
    z-index: 990;
    padding: 8px 16px;
    justify-content: space-around;
    align-items: center;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
}

[data-theme="light"] .mobile-bottom-nav {
    background: rgba(248, 250, 252, 0.95);
}

.mobile-bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 500;
    transition: var(--transition);
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-bottom-nav .nav-item i {
    font-size: 1.15rem;
}

.mobile-bottom-nav .nav-item.active,
.mobile-bottom-nav .nav-item:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* ==================== HERO SECTION ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 130px 20px 90px;
    overflow: hidden;
    background: 
        radial-gradient(circle at 50% 10%, rgba(56, 189, 248, 0.08) 0%, transparent 55%),
        radial-gradient(circle at 85% 25%, rgba(129, 140, 248, 0.06) 0%, transparent 45%),
        radial-gradient(circle at 15% 35%, rgba(16, 185, 129, 0.04) 0%, transparent 40%),
        var(--bg-primary);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% { opacity: 0; transform: translateY(100vh) scale(0); }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

.hero-content {
    text-align: center;
    max-width: 860px;
    position: relative;
    z-index: 2;
}

/* NOC Badge */
.noc-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.28);
    border-radius: 20px;
    color: var(--success);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    cursor: default;
}

.noc-badge:hover {
    border-color: rgba(34, 197, 94, 0.6);
    background: rgba(34, 197, 94, 0.14);
    box-shadow: 0 0 16px rgba(34, 197, 94, 0.25);
}

.noc-divider {
    color: rgba(34, 197, 94, 0.35);
    font-size: 0.7rem;
}

.noc-ping {
    color: #00d4ff;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.noc-sla {
    color: #a855f7;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    position: relative;
    flex-shrink: 0;
}

.pulse-dot::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: rgba(34, 197, 94, 0.4);
    animation: radarWave 1.8s ease-out infinite;
}

@keyframes radarWave {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

.hero-greeting {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.hero-name {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.hero-title-wrapper {
    font-family: var(--font-mono);
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-title-prefix {
    color: var(--accent);
}

.typing-text {
    color: var(--text-primary);
    font-weight: 600;
}

.cursor {
    animation: blink 0.8s infinite;
    color: var(--accent);
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-desc {
    color: var(--text-muted);
    font-size: 1rem;
    max-width: 680px;
    margin: 0 auto 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

/* Stats / Health metrics */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--accent);
    display: block;
    line-height: 1.1;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 4px;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    opacity: 0.7;
}

.mouse {
    width: 22px;
    height: 36px;
    border: 2px solid var(--border);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* Tech Marquee */
.tech-marquee {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    padding: 16px 0;
    white-space: nowrap;
}

.tech-marquee-content {
    display: inline-block;
    animation: marquee 30s linear infinite;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
}

.tech-marquee-content i {
    color: var(--accent);
    margin: 0 8px 0 24px;
}

.tech-marquee:hover .tech-marquee-content {
    animation-play-state: paused;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ==================== ABOUT SECTION ==================== */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-frame {
    position: relative;
    width: 280px;
    height: 340px;
    border-radius: 16px;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 20%;
    border-radius: 16px;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    filter: contrast(1.05) saturate(1.06) brightness(1.02);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), filter 0.4s ease;
}

.image-frame:hover .profile-img {
    transform: scale(1.02);
    filter: contrast(1.08) saturate(1.08) brightness(1.04);
}

.image-placeholder {
    font-size: 5rem;
    color: var(--accent);
    opacity: 0.8;
}

.image-border {
    position: absolute;
    top: 15px;
    left: 15px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent);
    border-radius: 16px;
    z-index: -1;
    opacity: 0.4;
    transition: var(--transition);
}

.image-frame:hover .image-border {
    top: 10px;
    left: 10px;
    opacity: 0.8;
}

.image-badge {
    position: absolute;
    bottom: -15px;
    right: -15px;
    background: var(--gradient);
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.about-text h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.about-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.about-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 24px 0 32px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.info-item i {
    color: var(--accent);
    font-size: 1rem;
    width: 18px;
}

.info-item .available {
    color: var(--success);
    font-weight: 600;
}

.about-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ==================== SKILLS SECTION ==================== */
.skills {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.skills-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn i {
    color: var(--accent);
}

.tab-btn.active, .tab-btn:hover {
    background: var(--gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.25);
}

.tab-btn.active i, .tab-btn:hover i {
    color: #fff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}

.skill-card:hover {
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.skill-icon {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.skill-card h4 {
    font-size: 1rem;
    margin-bottom: 12px;
}

.skill-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.skill-progress {
    height: 100%;
    background: var(--gradient);
    border-radius: 3px;
    width: 0;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-percent {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

/* ==================== SERVICES SECTION ==================== */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 32px 28px;
    transition: var(--transition);
    position: relative;
}

.service-card:hover {
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ==================== CASE STUDIES (NEW FEATURE) ==================== */
.case-studies {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.case-filter-wrapper {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.case-filter-btn {
    padding: 8px 16px;
    border-radius: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.case-filter-btn.active, .case-filter-btn:hover {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(480px, 1fr));
    gap: 24px;
}

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition);
}

.case-card:hover {
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.case-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.case-tag {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 700;
}

.network-tag { background: rgba(0, 212, 255, 0.12); color: var(--accent); }
.hardware-tag { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.security-tag { background: rgba(239, 68, 68, 0.12); color: var(--danger); }
.system-tag { background: rgba(124, 58, 237, 0.15); color: #a78bfa; }

.case-impact-badge {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--success);
    font-weight: 600;
}

.case-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 18px;
    line-height: 1.4;
}

.case-steps {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 20px;
}

.case-step {
    background: rgba(0, 0, 0, 0.15);
    padding: 12px 14px;
    border-radius: 8px;
    border-left: 3px solid var(--border);
}

.step-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    display: block;
    margin-bottom: 4px;
    text-transform: uppercase;
}

.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-success { color: var(--success); }

.case-step p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.case-footer {
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.case-tools {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.case-tools code {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
}

/* ==================== CERTIFICATIONS ==================== */
.certifications {
    padding: 100px 0;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px;
    display: flex;
    align-items: center;
    gap: 18px;
    transition: var(--transition);
}

.cert-card:hover {
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-3px);
}

.cert-badge {
    width: 48px;
    height: 48px;
    background: var(--gradient-subtle);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--accent);
    flex-shrink: 0;
}

.cert-info {
    flex: 1;
}

.cert-info h4 {
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.cert-issuer {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.cert-year {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 600;
}

.cert-tag {
    padding: 3px 10px;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* ==================== EXPERIENCE (RESPONSIVE FIX) ==================== */
.experience {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.experience-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    align-items: start;
}

.experience-toc-wrapper {
    position: sticky;
    top: 100px;
}

.experience-toc {
    border-left: 2px solid var(--border);
    padding-left: 16px;
}

.toc-link {
    display: block;
    padding: 8px 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    transition: var(--transition);
}

.toc-link:hover, .toc-link.active {
    color: var(--accent);
    font-weight: 600;
}

.timeline {
    position: relative;
    padding-left: 36px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--gradient);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -43px;
    top: 4px;
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    border: 3px solid var(--bg-secondary);
    box-shadow: 0 0 0 3px var(--accent);
}

.timeline-content {
    background: var(--bg-card);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateX(4px);
}

.timeline-date {
    display: inline-block;
    padding: 3px 12px;
    background: var(--accent-glow);
    color: var(--accent);
    border-radius: 16px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 700;
    margin-bottom: 10px;
}

.timeline-content h3 {
    font-size: 1.15rem;
    margin-bottom: 2px;
}

.company-name {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 14px;
}

.timeline-content ul li {
    padding: 4px 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.timeline-content ul li::before {
    content: '\25B9';
    color: var(--accent);
    margin-top: 1px;
}

/* ==================== TESTIMONIALS ==================== */
.testimonials {
    padding: 100px 0;
}

.testimonial-slider {
    max-width: 840px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
    min-width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 30px;
    text-align: center;
    box-sizing: border-box;
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1rem;
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    gap: 4px;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.15);
    flex-shrink: 0;
}

.avatar-ar { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.avatar-bs { background: linear-gradient(135deg, #10b981, #047857); }
.avatar-sn { background: linear-gradient(135deg, #a855f7, #6b21a8); }

.author-info h5 {
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.author-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.testimonial-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 24px;
}

.testimonial-btn {
    width: 38px;
    height: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.testimonial-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.testimonial-dots {
    display: flex;
    gap: 8px;
}

.testimonial-dot {
    width: 10px;
    height: 10px;
    background: var(--border);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}

.testimonial-dot.active {
    background: var(--accent);
    width: 24px;
    border-radius: 5px;
}

/* ==================== CONTACT SECTION ==================== */
.contact {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.contact-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.contact-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-subtle);
    border: 1px solid var(--border);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.contact-item a, .contact-item span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.contact-item a:hover {
    color: var(--accent);
}

.quick-wa-banner {
    background: rgba(37, 211, 102, 0.1);
    border: 1px solid rgba(37, 211, 102, 0.3);
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.quick-wa-banner:hover {
    background: rgba(37, 211, 102, 0.2);
    transform: translateY(-2px);
}

.quick-wa-banner i {
    font-size: 2rem;
    color: #25d366;
}

.quick-wa-banner strong {
    font-size: 0.9rem;
    color: #25d366;
    display: block;
}

.quick-wa-banner p {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: var(--bg-card);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.92rem;
    outline: none;
    transition: var(--transition);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group label {
    position: absolute;
    top: 14px;
    left: 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
    transition: var(--transition);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -8px;
    font-size: 0.72rem;
    color: var(--accent);
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: var(--transition);
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
    width: 100%;
}

.btn-submit {
    align-self: flex-start;
}

.btn-wa-submit {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%) !important;
    border-color: #25d366 !important;
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.35);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    cursor: pointer;
}

.btn-wa-submit:hover {
    background: linear-gradient(135deg, #128c7e 0%, #075e54 100%) !important;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.55);
    transform: translateY(-2px);
}

.btn-wa-submit i {
    font-size: 1.15rem;
}

/* ==================== FOOTER ==================== */
.footer {
    padding: 60px 0 0;
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border);
}

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 12px;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 38px;
    height: 38px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: var(--transition);
}

.social-link:hover {
    transform: translateY(-3px);
}

.social-link.social-wa:hover {
    background: #25d366;
    border-color: #25d366;
    color: #ffffff;
    box-shadow: 0 6px 18px rgba(37, 211, 102, 0.45);
}

.social-link.social-ig:hover {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    border-color: #dc2743;
    color: #ffffff;
    box-shadow: 0 6px 18px rgba(220, 39, 67, 0.45);
}

.social-link.social-li:hover {
    background: #0077b5;
    border-color: #0077b5;
    color: #ffffff;
    box-shadow: 0 6px 18px rgba(0, 119, 181, 0.45);
}

.social-link.social-tt:hover {
    background: #000000;
    border-color: #00f2fe;
    color: #ffffff;
    box-shadow: -2px -2px 10px rgba(0, 242, 234, 0.45), 2px 2px 10px rgba(255, 0, 80, 0.45);
}

.footer-col h4 {
    font-size: 0.95rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-emergency {
    margin-top: 16px;
    padding: 10px 14px;
    background: rgba(0, 212, 255, 0.08);
    border-radius: 8px;
    border-left: 3px solid var(--accent);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--accent);
    font-family: var(--font-mono);
}

.footer-bottom {
    padding: 20px 0 30px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.footer-credit {
    font-size: 0.72rem !important;
    opacity: 0.6;
    margin-top: 4px;
}

/* ==================== FLOATING ELEMENTS ==================== */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    left: 24px;
    width: 52px;
    height: 52px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.5rem;
    z-index: 980;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    cursor: pointer;
    animation: waPulse 2.5s infinite;
}

@keyframes waPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.06); box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6); }
}

.whatsapp-tooltip {
    position: absolute;
    left: 64px;
    background: var(--bg-card);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-family: var(--font-main);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: rgba(15, 23, 42, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: 50%;
    color: #00d4ff;
    font-size: 0.95rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.9);
    transition: var(--transition);
    z-index: 980;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 212, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.back-to-top:hover {
    transform: translateY(-3px) scale(1.08);
    border-color: #00d4ff;
    color: #fff;
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.45);
}

.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
    pointer-events: none;
}

.progress-ring-circle {
    stroke-dasharray: 125.66;
    stroke-dashoffset: 125.66;
    transition: stroke-dashoffset 0.1s linear;
}

[data-theme="light"] .back-to-top {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 102, 204, 0.3);
    color: #0066cc;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1), 0 0 15px rgba(0, 102, 204, 0.2);
}

/* ==================== 1. INTERACTIVE IT TERMINAL MODAL ==================== */
.terminal-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 10005;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.terminal-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.terminal-window {
    width: 100%;
    max-width: 780px;
    height: 520px;
    max-height: 90vh;
    background: #0d0d16;
    border: 1px solid #33334d;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 212, 255, 0.1);
    overflow: hidden;
    font-family: var(--font-mono);
}

.terminal-titlebar {
    background: #161624;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #272738;
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    cursor: pointer;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #22c55e; }

.terminal-title {
    font-size: 0.8rem;
    color: #a1a1aa;
    display: flex;
    align-items: center;
    gap: 6px;
}

.terminal-actions {
    display: flex;
    gap: 8px;
}

.term-btn {
    background: none;
    border: none;
    color: #71717a;
    cursor: pointer;
    font-size: 0.85rem;
    padding: 2px;
}

.term-btn:hover {
    color: #fff;
}

.terminal-body {
    flex: 1;
    padding: 18px;
    overflow-y: auto;
    color: #e4e4e7;
    font-size: 0.82rem;
    line-height: 1.6;
}

.ascii-logo {
    color: var(--accent);
    font-size: 0.5rem;
    line-height: 1.1;
    margin-bottom: 10px;
    overflow-x: auto;
}

.term-welcome {
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.term-tip {
    color: #a1a1aa;
    margin-bottom: 16px;
}

.highlight {
    color: var(--accent);
    font-weight: 700;
}

.terminal-prompt-line {
    display: flex;
    align-items: center;
    margin-top: 10px;
}

.term-user { color: #22c55e; font-weight: 700; }
.term-path { color: #00d4ff; }

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    outline: none;
    caret-color: var(--accent);
}

.term-output-entry {
    margin-bottom: 12px;
}

.term-command-echo {
    color: #a1a1aa;
    margin-bottom: 4px;
}

.term-res-success { color: var(--success); }
.term-res-error { color: var(--danger); }
.term-res-info { color: var(--accent); }
.term-res-warn { color: var(--warning); }

/* ==================== 2. WHATSAPP PRESET MODAL ==================== */
.wa-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(6px);
    z-index: 10005;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.wa-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.wa-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 100%;
    max-width: 520px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.wa-modal-header {
    background: #075e54;
    color: #fff;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.wa-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.wa-header-left i {
    font-size: 1.8rem;
    color: #25d366;
}

.wa-header-left h3 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.wa-header-left span {
    font-size: 0.75rem;
    opacity: 0.8;
}

.wa-close-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
}

.wa-modal-body {
    padding: 20px;
}

.wa-prompt {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.wa-preset-chips {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
}

.preset-chip {
    text-align: left;
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: var(--font-main);
    cursor: pointer;
    transition: var(--transition);
}

.preset-chip:hover, .preset-chip.active {
    border-color: #25d366;
    background: rgba(37, 211, 102, 0.1);
    color: #25d366;
}

.wa-custom-input label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
}

.wa-custom-input textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.88rem;
    outline: none;
    resize: vertical;
}

.wa-custom-input textarea:focus {
    border-color: #25d366;
}

.wa-modal-footer {
    padding: 14px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.btn-wa-cancel {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
}

.btn-wa-send {
    padding: 8px 20px;
    background: #25d366;
    border: none;
    border-radius: 6px;
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-wa-send:hover {
    background: #1ebe5d;
    transform: translateY(-1px);
}

/* ==================== 3. CV MODAL (ATS & PRINT) ==================== */
.cv-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 10005;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.cv-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.cv-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    width: 100%;
    max-width: 820px;
    height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.cv-modal-header {
    background: var(--bg-secondary);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.cv-header-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent);
}

.cv-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cv-btn-download, .cv-btn-print {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.cv-btn-download {
    background: var(--gradient);
    border: none;
    color: #fff;
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.25);
}

.cv-btn-download:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.cv-btn-print {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.cv-btn-print:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.cv-btn-close {
    background: #ef4444;
    border: none;
    color: #fff;
    width: 30px;
    height: 30px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cv-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background: #0e0e17;
    display: flex;
    justify-content: center;
}

.cv-paper {
    background: #ffffff;
    width: 100%;
    max-width: 760px;
    padding: 40px 45px;
    color: #1e293b;
    font-family: 'Inter', sans-serif;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    margin-bottom: 20px;
    height: max-content;
}

.cv-paper-header h1 {
    color: #0f2b5c;
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.cv-subtitle {
    font-size: 0.88rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.cv-contact-info {
    display: flex;
    gap: 12px 18px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: #475569;
    padding-bottom: 14px;
    border-bottom: 2px solid #e2e8f0;
    margin-bottom: 22px;
}

.cv-contact-info span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.cv-contact-info i {
    color: #2563eb;
    font-size: 0.85rem;
}

.cv-section {
    margin-bottom: 22px;
}

.cv-section-title {
    font-size: 0.92rem;
    font-weight: 800;
    color: #0f2b5c;
    margin-bottom: 10px;
    padding-bottom: 5px;
    border-bottom: 1.5px solid #cbd5e1;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cv-section-title i {
    color: #2563eb;
    font-size: 0.85rem;
}

.cv-text {
    font-size: 0.86rem;
    line-height: 1.65;
    color: #334155;
}

.cv-job {
    margin-bottom: 16px;
}

.cv-job-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 6px;
    flex-wrap: wrap;
    gap: 4px;
}

.cv-job-title {
    font-size: 0.92rem;
    color: #0f172a;
}

.cv-job-title strong {
    color: #0f2b5c;
}

.cv-company {
    color: #2563eb;
    font-weight: 600;
}

.cv-date {
    font-size: 0.78rem;
    color: #64748b;
    font-weight: 600;
}

.cv-list {
    padding-left: 18px;
    list-style: disc;
}

.cv-list li {
    font-size: 0.83rem;
    color: #334155;
    margin-bottom: 6px;
    line-height: 1.55;
}

.cv-list li strong {
    color: #0f172a;
}

/* CV Skills Matrix Grid */
.cv-skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.cv-skill-group {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 10px 12px;
}

.cv-skill-group strong {
    display: block;
    font-size: 0.82rem;
    color: #0f2b5c;
    margin-bottom: 4px;
}

.cv-skill-group strong i {
    color: #2563eb;
    margin-right: 4px;
}

.cv-skill-group p {
    font-size: 0.78rem;
    line-height: 1.5;
    color: #475569;
    margin: 0;
}

/* CV Certifications Grid */
.cv-cert-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.cv-cert-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 8px 12px;
}

.cv-cert-item i {
    color: #10b981;
    font-size: 1rem;
    margin-top: 2px;
}

.cv-cert-item strong {
    display: block;
    font-size: 0.8rem;
    color: #0f2b5c;
    line-height: 1.3;
}

.cv-cert-item span {
    display: block;
    font-size: 0.72rem;
    color: #64748b;
    margin-top: 2px;
}

.cv-modal-footer {
    padding: 14px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}

.cv-btn-cancel {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.82rem;
    transition: var(--transition);
}

.cv-btn-cancel:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.cv-btn-download {
    padding: 8px 18px;
    background: var(--gradient);
    border: none;
    border-radius: 6px;
    color: #fff;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.82rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.cv-btn-download:hover {
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
    transform: translateY(-1px);
}

/* ==================== 1. INTERACTIVE IT LAB & TOOLS ==================== */
.network-lab, .work-showcase, .sla-estimator {
    padding: 100px 0;
    position: relative;
}

.lab-tab-nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.lab-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 30px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.lab-tab-btn i {
    font-size: 1rem;
    color: var(--accent);
}

.lab-tab-btn:hover {
    border-color: var(--accent);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.lab-tab-btn.active {
    background: var(--gradient);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.35);
}

.lab-tab-btn.active i {
    color: #fff;
}

.lab-tab-content {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.lab-tab-content.active {
    display: block;
}

/* --- Topology Lab Layout --- */
.topology-lab-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.topology-controls {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 24px;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    min-width: 220px;
}

.control-group label {
    font-size: 0.8rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.topo-select, .calc-select {
    padding: 9px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.82rem;
    font-family: var(--font-sans);
    outline: none;
    cursor: pointer;
    transition: var(--transition);
}

.topo-select:focus, .calc-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

.control-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-topo-action {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--gradient);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.25);
}

.btn-topo-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 18px rgba(0, 212, 255, 0.4);
}

.btn-storm-action {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    box-shadow: 0 2px 10px rgba(239, 68, 68, 0.25);
}

.btn-storm-action:hover {
    box-shadow: 0 5px 18px rgba(239, 68, 68, 0.4);
}

/* --- Topology Visual Diagram --- */
.topology-diagram-container {
    position: relative;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.05) 0%, rgba(15, 23, 42, 0.4) 100%), var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 30px 20px;
    min-height: 380px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    margin-bottom: 20px;
}

.topo-svg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.cable-line {
    stroke: var(--border);
    stroke-width: 2;
    stroke-dasharray: 4 4;
    transition: stroke 0.3s ease, stroke-width 0.3s ease;
}

.cable-line.active-pulse {
    stroke: url(#cableGrad);
    stroke-width: 3.5;
    stroke-dasharray: 8 4;
    animation: dashPulse 1s linear infinite;
}

@keyframes dashPulse {
    to { stroke-dashoffset: -24; }
}

.topo-layer {
    display: flex;
    justify-content: space-around;
    align-items: center;
    position: relative;
    z-index: 2;
    gap: 15px;
}

.topo-node {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    cursor: default;
    min-width: 190px;
}

.topo-node:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

.topo-node.node-highlight-source {
    border-color: #3b82f6;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
    background: rgba(59, 130, 246, 0.08);
}

.topo-node.node-highlight-dest {
    border-color: #10b981;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
    background: rgba(16, 185, 129, 0.08);
}

.topo-node.node-packet-hit {
    animation: nodePulse 0.6s ease;
}

@keyframes nodePulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.08); border-color: #06b6d4; }
    100% { transform: scale(1); }
}

.node-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.node-details {
    display: flex;
    flex-direction: column;
}

.node-title {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
}

.node-ip {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.node-status {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.status-online {
    background: #10b981;
    box-shadow: 0 0 8px #10b981;
}

.node-badge {
    position: absolute;
    top: -9px;
    left: 12px;
    font-size: 0.62rem;
    font-family: var(--font-mono);
    font-weight: 800;
    padding: 2px 7px;
    border-radius: 4px;
    color: #fff;
}

.vlan-10 { background: #3b82f6; }
.vlan-20 { background: #8b5cf6; }
.vlan-30 { background: #10b981; }

/* --- Topology Log Console --- */
.topo-log-console {
    background: #090d16;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    font-family: var(--font-mono);
}

.console-header {
    background: #0f172a;
    padding: 8px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.console-title {
    font-size: 0.76rem;
    color: #38bdf8;
    display: flex;
    align-items: center;
    gap: 6px;
}

.console-clear {
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 0.7rem;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: var(--transition);
}

.console-clear:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.console-body {
    padding: 12px 16px;
    max-height: 140px;
    overflow-y: auto;
    font-size: 0.75rem;
    line-height: 1.5;
    color: #e2e8f0;
}

.log-line { margin-bottom: 4px; }
.log-line.log-success { color: #4ade80; }
.log-line.log-warning { color: #facc15; }
.log-line.log-danger { color: #f87171; }

/* --- TAB 2: Subnet Calculator Layout --- */
.subnet-calc-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 24px;
}

.calc-input-card, .calc-results-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.calc-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.calc-title i { color: var(--accent); }

.calc-form-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
}

.calc-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.calc-field label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-icon i {
    position: absolute;
    left: 12px;
    color: var(--accent);
    font-size: 0.9rem;
}

.input-with-icon input {
    width: 100%;
    padding: 9px 12px 9px 36px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition);
}

.input-with-icon input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

.subnet-presets {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.preset-label {
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.preset-label i { color: #f59e0b; }

.preset-pill {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.74rem;
    font-family: var(--font-mono);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.preset-pill:hover {
    border-color: var(--accent);
    background: rgba(0, 212, 255, 0.08);
    transform: translateX(3px);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.result-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.res-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    text-transform: uppercase;
}

.res-val {
    font-size: 0.88rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    word-break: break-all;
}

.bitmask-visualizer {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px;
}

.bitmask-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.badge-cidr {
    background: var(--accent-glow);
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 700;
}

.bitmask-bar {
    display: grid;
    grid-template-columns: repeat(32, 1fr);
    gap: 2px;
    height: 18px;
}

.bit-box {
    border-radius: 2px;
    height: 100%;
    transition: background-color 0.2s ease;
}

.bit-net { background: #3b82f6; }
.bit-host { background: #334155; }

/* ==================== 2. WORK SHOWCASE (BEFORE/AFTER SLIDER) ==================== */
.showcase-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.compare-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
}

.compare-header {
    margin-bottom: 18px;
}

.compare-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-glow);
    padding: 4px 10px;
    border-radius: 20px;
    margin-bottom: 10px;
}

.compare-header h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.compare-header p {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.compare-slider-container {
    position: relative;
    width: 100%;
    height: 260px;
    border-radius: 12px;
    overflow: hidden;
    user-select: none;
    border: 1px solid var(--border);
    cursor: ew-resize;
}

.compare-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.compare-before {
    z-index: 1;
}

.compare-after {
    z-index: 2;
    width: 50%;
    overflow: hidden;
}

.compare-after .sim-visual {
    width: 100%;
    min-width: 100%;
}

.compare-handle {
    position: absolute;
    top: 0;
    left: 50%;
    height: 100%;
    width: 3px;
    z-index: 3;
    pointer-events: none;
    transform: translateX(-50%);
}

.handle-line {
    width: 100%;
    height: 100%;
    background: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
}

.handle-pill {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.6);
    font-size: 0.85rem;
}

.sim-visual {
    width: 100%;
    height: 100%;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-sizing: border-box;
}

.sim-messy-rack { background: linear-gradient(135deg, #1e1b2e 0%, #2a1b1b 100%); }
.sim-clean-rack { background: linear-gradient(135deg, #0f2744 0%, #0d383b 100%); }
.sim-hot-pc { background: linear-gradient(135deg, #2d1b1b 0%, #3d1c1c 100%); }
.sim-cool-pc { background: linear-gradient(135deg, #0e2e38 0%, #0b3040 100%); }
.sim-slow-hdd { background: linear-gradient(135deg, #2b1810 0%, #3d1c1c 100%); }
.sim-fast-nvme { background: linear-gradient(135deg, #092834 0%, #0d3b4c 100%); }
.sim-laggy-net { background: linear-gradient(135deg, #2c1a24 0%, #3d1822 100%); }
.sim-qos-net { background: linear-gradient(135deg, #0d2838 0%, #0d353b 100%); }

.visual-badge {
    align-self: flex-start;
    font-size: 0.68rem;
    font-family: var(--font-mono);
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 4px;
    color: #fff;
}

.badge-before { background: #ef4444; }
.badge-after { background: #10b981; }

.rack-frame, .pc-frame {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.rack-unit {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 8px;
}

.rack-error { color: #f87171; border-left: 3px solid #ef4444; }
.rack-clean { color: #38bdf8; border-left: 3px solid #10b981; }

.temp-gauge { font-size: 1.1rem; font-weight: 800; font-family: var(--font-mono); }
.pc-status { font-size: 0.8rem; font-weight: 600; }
.pc-metric { font-size: 0.72rem; color: #94a3b8; font-family: var(--font-mono); }

/* ==================== 3. SERVICE & SLA ESTIMATOR ==================== */
.estimator-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 28px;
}

.estimator-controls-card, .estimator-summary-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 26px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.card-heading {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-heading i { color: var(--accent); }

.estimator-slider-group {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.slider-header label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
}

.slider-badge {
    background: var(--gradient);
    color: #fff;
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    font-weight: 800;
}

.custom-range {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
}

.custom-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
    cursor: pointer;
    transition: transform 0.1s ease;
}

.custom-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.range-ticks {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 8px;
    font-family: var(--font-mono);
}

.scope-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.scope-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.scope-checkbox-card {
    display: block;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    cursor: pointer;
    transition: var(--transition);
}

.scope-checkbox-card input { display: none; }

.checkbox-inner {
    display: flex;
    align-items: center;
    gap: 14px;
}

.checkbox-inner i {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.checkbox-inner strong {
    display: block;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.checkbox-inner p {
    font-size: 0.74rem;
    color: var(--text-muted);
    margin: 2px 0 0 0;
}

.scope-checkbox-card.active {
    border-color: var(--accent);
    background: rgba(0, 212, 255, 0.06);
}

.scope-checkbox-card.active .checkbox-inner i {
    color: var(--accent);
}

.summary-metric-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.summary-metric-row {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.metric-value {
    font-size: 0.88rem;
    font-weight: 800;
    font-family: var(--font-mono);
}

.summary-cta-box {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn-estimator-wa {
    width: 100%;
    padding: 14px;
    background: #25d366;
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 4px 18px rgba(37, 211, 102, 0.35);
    transition: var(--transition);
}

.btn-estimator-wa:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
    background: #20ba5a;
}

.cta-note {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-align: center;
    margin: 0;
}

/* ==================== 4. GLOBAL COMMAND PALETTE (CTRL+K) ==================== */
.cmd-palette-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(10px);
    z-index: 10010;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
    padding-left: 16px;
    padding-right: 16px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.cmd-palette-overlay.active {
    opacity: 1;
    visibility: visible;
}

.cmd-palette-modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 100%;
    max-width: 620px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px var(--accent-glow);
    overflow: hidden;
    animation: cmdPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cmdPop {
    from { transform: scale(0.95) translateY(-10px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.cmd-palette-header {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

.cmd-search-icon {
    font-size: 1.1rem;
    color: var(--accent);
}

#cmdPaletteInput {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-sans);
}

#cmdPaletteInput::placeholder {
    color: var(--text-muted);
}

.cmd-esc-badge {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 0.65rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    cursor: pointer;
}

.cmd-palette-body {
    max-height: 360px;
    overflow-y: auto;
    padding: 10px;
}

.cmd-group-title {
    font-size: 0.68rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 8px 12px 4px 12px;
    letter-spacing: 0.5px;
}

.cmd-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease;
    color: var(--text-primary);
}

.cmd-item-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cmd-item-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 0.85rem;
}

.cmd-item-info {
    display: flex;
    flex-direction: column;
}

.cmd-item-title {
    font-size: 0.85rem;
    font-weight: 600;
}

.cmd-item-subtitle {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.cmd-item-tag {
    font-size: 0.65rem;
    font-family: var(--font-mono);
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.cmd-item:hover, .cmd-item.selected {
    background: var(--accent-glow);
    color: var(--accent);
}

.cmd-item:hover .cmd-item-icon, .cmd-item.selected .cmd-item-icon {
    background: var(--accent);
    color: #fff;
}

.cmd-palette-footer {
    display: flex;
    justify-content: flex-end;
    gap: 16px;
    padding: 10px 20px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    font-size: 0.7rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.cmd-palette-footer kbd {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1px 5px;
    border-radius: 3px;
    color: var(--text-secondary);
}

/* ==================== REVEAL ANIMATIONS ==================== */
.reveal, .reveal-left, .reveal-right, .reveal-stagger {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal { transform: translateY(25px); }
.reveal-left { transform: translateX(-35px); }
.reveal-right { transform: translateX(35px); }
.reveal-stagger { transform: translateY(20px); }

.reveal.active, .reveal-left.active, .reveal-right.active, .reveal-stagger.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* ==================== RESPONSIVE BREAKPOINTS ==================== */

/* Tablet / Compact Desktop (1180px) */
@media (max-width: 1180px) {
    .nav-menu {
        display: none; /* Switch to Hamburger Drawer on Tablet & Compact Desktop */
    }

    .hamburger {
        display: flex;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .about-info {
        justify-content: center;
    }

    .about-actions {
        justify-content: center;
    }

    .case-studies-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .subnet-calc-wrapper, .showcase-grid, .estimator-wrapper {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* Smartphone (768px) */
@media (max-width: 768px) {
    .navbar {
        padding: 10px 0;
        background: rgba(10, 10, 15, 0.92);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
    }

    [data-theme="light"] .navbar {
        background: rgba(248, 250, 252, 0.95);
    }

    .btn-cli-text {
        display: none;
    }

    .nav-terminal-btn {
        padding: 6px 8px;
    }

    .nav-cmd-btn {
        padding: 6px 8px;
    }

    .nav-cmd-btn .kbd-badge {
        display: none;
    }

    /* --- Topology Lab Mobile Optimization --- */
    .topology-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
        padding: 16px 14px;
    }

    .control-group {
        min-width: 100%;
    }

    .control-actions {
        display: flex;
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }

    .btn-topo-action {
        width: 100%;
        justify-content: center;
        padding: 12px 16px;
    }

    .topology-diagram-container {
        padding: 16px 12px;
        min-height: auto;
        gap: 12px;
        background: var(--bg-secondary);
        overflow: hidden;
    }

    .topo-svg-canvas {
        display: none !important; /* Hide desktop multi-column SVG diagonals on single-column mobile */
    }

    .topo-layer {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }

    .topo-layer + .topo-layer {
        margin-top: 4px;
    }

    .topo-layer-mid::before,
    .topo-layer-bottom::before {
        content: '';
        display: block;
        width: 2px;
        height: 14px;
        margin: -4px auto 6px auto;
        background: linear-gradient(180deg, var(--accent) 0%, rgba(0, 212, 255, 0.15) 100%);
    }

    .topo-node {
        width: 100%;
        max-width: 100%;
        padding: 11px 14px;
        box-sizing: border-box;
    }

    .packet-log-card {
        margin-top: 16px;
        margin-bottom: 20px;
    }

    .results-grid {
        grid-template-columns: 1fr;
    }

    .mobile-bottom-nav {
        display: flex;
    }

    body {
        padding-bottom: 65px; /* Room for bottom nav */
    }

    .hero {
        padding: 90px 16px 50px;
        min-height: auto;
    }

    .hero-name {
        font-size: 2.2rem;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .services-grid, .skills-grid, .cert-grid {
        grid-template-columns: 1fr;
    }

    /* Experience fix on Mobile: 1 Column */
    .experience-layout {
        grid-template-columns: 1fr;
    }

    .experience-toc-wrapper {
        display: none; /* Hide TOC on mobile */
    }

    .timeline {
        padding-left: 28px;
    }

    .timeline-dot {
        left: -34px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .whatsapp-float {
        bottom: calc(72px + env(safe-area-inset-bottom));
        left: 16px;
        width: 48px;
        height: 48px;
        font-size: 1.4rem;
        z-index: 995;
    }

    .back-to-top {
        bottom: calc(72px + env(safe-area-inset-bottom));
        right: 16px;
        width: 48px;
        height: 48px;
        z-index: 995;
    }

    .cv-paper {
        padding: 20px;
    }

    .cv-job-header {
        flex-direction: column;
    }
}

/* Extra Small Devices (480px) */
@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .about-info {
        grid-template-columns: 1fr;
    }

    .image-frame {
        width: 220px;
        height: 260px;
    }

    .terminal-window {
        height: 85vh;
    }

    .ascii-logo {
        display: none;
    }
}

@media (max-width: 600px) {
    .cv-skills-grid,
    .cv-cert-grid {
        grid-template-columns: 1fr;
    }
    .cv-paper {
        padding: 20px 16px;
    }
}

/* Print & PDF Export Styles (Optimized & Zero Lag) */
@media print {
    @page {
        size: A4 portrait;
        margin: 0mm !important; /* Otomatis menghilangkan header URL, title, tanggal, dan nomor halaman bawaan browser */
    }

    /* Matikan semua animasi & transisi agar PDF compositor langsung selesai tanpa loading lama */
    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
        -webkit-transition: none !important;
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }
    
    /* Sembunyikan seluruh komponen non-CV dengan display:none */
    header,
    nav,
    main > section,
    section,
    footer,
    .hero,
    .about,
    .skills,
    .services,
    .cases,
    .certifications,
    .experience,
    .testimonials,
    .contact,
    .whatsapp-float,
    .back-to-top,
    .terminal-overlay,
    .wa-modal-overlay,
    .mobile-bottom-nav,
    .nav-overlay,
    .tech-marquee,
    .scroll-indicator,
    .cv-modal-header,
    .cv-modal-footer,
    .bg-grid-pattern,
    .canvas-background,
    #particles-js,
    .cursor,
    .typing-text::after {
        display: none !important;
    }

    html, body {
        background: #ffffff !important;
        color: #000000 !important;
        overflow: visible !important;
        height: auto !important;
        min-height: auto !important;
        max-height: none !important;
        position: static !important;
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
        margin: 0 !important;
        padding: 0 !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .cv-modal-overlay {
        position: static !important;
        display: block !important;
        background: transparent !important;
        padding: 0 !important;
        backdrop-filter: none !important;
        opacity: 1 !important;
        visibility: visible !important;
    }

    .cv-modal {
        border: none !important;
        box-shadow: none !important;
        background: transparent !important;
        max-width: 100% !important;
        height: auto !important;
        overflow: visible !important;
    }

    .cv-modal-body {
        padding: 0 !important;
        background: transparent !important;
        overflow: visible !important;
    }

    .cv-paper {
        position: static !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 6mm 12mm !important; /* Padding bersih presisi untuk 1 lembar A4 penuh */
        box-sizing: border-box !important;
        box-shadow: none !important;
        border-radius: 0 !important;
        color: #0f172a !important;
        background: #ffffff !important;
        page-break-inside: avoid !important;
        page-break-after: avoid !important;
    }

    .cv-paper-header h1 {
        font-size: 1.45rem !important;
        font-weight: 800 !important;
        margin-bottom: 2px !important;
        color: #0f2b5c !important;
        letter-spacing: -0.3px !important;
        line-height: 1.1 !important;
    }

    .cv-subtitle {
        font-size: 0.80rem !important;
        font-weight: 700 !important;
        margin-bottom: 4px !important;
        color: #2563eb !important;
        letter-spacing: 0.3px !important;
    }

    .cv-contact-info {
        font-size: 0.74rem !important;
        color: #475569 !important;
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 3px 14px !important;
        padding-bottom: 5px !important;
        margin-bottom: 7px !important;
        border-bottom: 1.5px solid #cbd5e1 !important;
    }

    .cv-contact-info span {
        display: inline-flex !important;
        align-items: center !important;
        gap: 4px !important;
        font-weight: 500 !important;
    }

    .cv-contact-info i {
        color: #2563eb !important;
        font-size: 0.76rem !important;
    }

    .cv-section {
        margin-bottom: 7px !important;
        page-break-inside: avoid !important;
    }

    .cv-section-title {
        border-bottom: 1.2px solid #cbd5e1 !important;
        color: #0f2b5c !important;
        font-size: 0.80rem !important;
        font-weight: 800 !important;
        margin-bottom: 4px !important;
        padding-bottom: 2px !important;
        page-break-after: avoid !important;
        display: flex !important;
        align-items: center !important;
        gap: 6px !important;
        letter-spacing: 0.3px !important;
    }

    .cv-section-title i {
        color: #2563eb !important;
        font-size: 0.78rem !important;
    }

    .cv-text {
        font-size: 0.75rem !important;
        line-height: 1.38 !important;
        color: #334155 !important;
    }

    .cv-job {
        margin-bottom: 5px !important;
        page-break-inside: avoid !important;
    }

    .cv-job-header {
        display: flex !important;
        justify-content: space-between !important;
        align-items: baseline !important;
        margin-bottom: 2px !important;
        flex-wrap: wrap !important;
    }

    .cv-job-title {
        font-size: 0.78rem !important;
        color: #0f172a !important;
    }

    .cv-job-title strong {
        color: #0f2b5c !important;
    }

    .cv-company {
        color: #2563eb !important;
        font-weight: 600 !important;
    }

    .cv-date {
        font-size: 0.70rem !important;
        color: #64748b !important;
        font-weight: 600 !important;
    }

    .cv-list {
        padding-left: 14px !important;
        list-style-type: disc !important;
    }

    .cv-list li {
        font-size: 0.74rem !important;
        color: #334155 !important;
        margin-bottom: 2px !important;
        line-height: 1.32 !important;
    }

    .cv-list li strong {
        color: #0f172a !important;
    }

    /* Skills Grid - 2 Kolom Seimbang */
    .cv-skills-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 5px !important;
    }

    .cv-skill-group {
        background: #f8fafc !important;
        border: 1px solid #cbd5e1 !important;
        border-radius: 4px !important;
        padding: 4px 7px !important;
        page-break-inside: avoid !important;
    }

    .cv-skill-group strong {
        display: block !important;
        font-size: 0.74rem !important;
        margin-bottom: 1px !important;
        color: #0f2b5c !important;
    }

    .cv-skill-group strong i {
        color: #2563eb !important;
        margin-right: 4px !important;
    }

    .cv-skill-group p {
        font-size: 0.70rem !important;
        line-height: 1.28 !important;
        color: #475569 !important;
        margin: 0 !important;
    }

    /* Certifications Grid - 2 Kolom Seimbang */
    .cv-cert-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 4px !important;
    }

    .cv-cert-item {
        display: flex !important;
        align-items: flex-start !important;
        background: #f8fafc !important;
        border: 1px solid #cbd5e1 !important;
        border-radius: 4px !important;
        padding: 3px 6px !important;
        gap: 6px !important;
        page-break-inside: avoid !important;
    }

    .cv-cert-item i {
        color: #10b981 !important;
        font-size: 0.78rem !important;
        margin-top: 1px !important;
    }

    .cv-cert-item strong {
        display: block !important;
        font-size: 0.72rem !important;
        color: #0f2b5c !important;
        line-height: 1.2 !important;
    }

    .cv-cert-item span {
        display: block !important;
        font-size: 0.66rem !important;
        color: #64748b !important;
        margin-top: 1px !important;
    }

    /* Education / Last Section */
    .cv-section:last-child {
        margin-bottom: 0 !important;
    }

    .cv-section:last-child .cv-text {
        font-size: 0.72rem !important;
        line-height: 1.28 !important;
        margin-top: 1px !important;
    }
}

/* ==================== REACTIVE SPOTLIGHT CURSOR GLOW ==================== */
.spotlight-card {
    position: relative;
    overflow: hidden;
}

.spotlight-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        450px circle at var(--mouse-x, -999px) var(--mouse-y, -999px),
        rgba(0, 212, 255, 0.09),
        transparent 60%
    );
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.spotlight-card:hover::before {
    opacity: 1;
}

[data-theme="light"] .spotlight-card::before {
    background: radial-gradient(
        450px circle at var(--mouse-x, -999px) var(--mouse-y, -999px),
        rgba(0, 102, 204, 0.08),
        transparent 60%
    );
}

/* ==================== CONTACT QUICK COPY CHIPS ==================== */
.contact-copy-item {
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.contact-copy-item:hover {
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.08);
}

.contact-text-wrap {
    flex: 1;
}

.btn-copy-chip {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 10px;
}

.contact-copy-item:hover .btn-copy-chip,
.btn-copy-chip:hover {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--accent);
    color: var(--accent);
    transform: scale(1.08);
}

/* ==================== FLOATING TOAST NOTIFICATION ==================== */
.toast-notification {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    pointer-events: none;
    transform: translateY(100px) scale(0.9);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.35s ease;
}

.toast-notification.active {
    transform: translateY(0) scale(1);
    opacity: 1;
    pointer-events: auto;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(0, 212, 255, 0.35);
    border-radius: 12px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.45), 0 0 20px rgba(0, 212, 255, 0.2);
    color: #f8fafc;
    font-family: var(--font-primary);
    font-size: 0.88rem;
    font-weight: 600;
}

.toast-content i {
    font-size: 1.15rem;
    color: #00d4ff;
    animation: toastIconPop 0.4s ease;
}

@keyframes toastIconPop {
    0% { transform: scale(0.5) rotate(-20deg); }
    70% { transform: scale(1.2) rotate(5deg); }
    100% { transform: scale(1) rotate(0deg); }
}

[data-theme="light"] .toast-content {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(0, 102, 204, 0.3);
    color: #0f172a;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15), 0 0 15px rgba(0, 102, 204, 0.15);
}

@media (max-width: 768px) {
    .toast-notification {
        bottom: 80px;
        right: 16px;
        left: 16px;
        display: flex;
        justify-content: center;
    }
    .toast-content {
        width: 100%;
        max-width: 360px;
        justify-content: center;
    }
}