/* Hendra Cahyo Setiawan — Premium Cyber-Tech Portfolio v3 */

:root {
    --bg-primary: #020817;
    --bg-secondary: #051024;
    --bg-card: rgba(8, 15, 30, 0.75);
    --bg-card-solid: #080F1E;
    --bg-surface: #0B1528;
    --bg-input: rgba(8, 15, 30, 0.85);

    --accent: #22D3EE;
    --accent-bright: #67E8F9;
    --accent-hover: #06B6D4;
    --accent-glow: rgba(34, 211, 238, 0.18);
    --accent-muted: rgba(34, 211, 238, 0.07);
    --accent-border: rgba(34, 211, 238, 0.14);

    --secondary: #818CF8;

    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --text-dim: #334155;

    --border: rgba(148, 163, 184, 0.06);
    --border-light: rgba(148, 163, 184, 0.1);
    --border-hover: rgba(34, 211, 238, 0.22);

    --success: #10B981;
    --success-bg: rgba(16, 185, 129, 0.08);
    --danger: #EF4444;
    --danger-bg: rgba(239, 68, 68, 0.08);

    --font-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Outfit', var(--font-primary);
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --container: 1200px;
    --header-h: 72px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    --shadow-card: 0 2px 24px rgba(0,0,0,0.35), 0 0 0 1px var(--border);
    --shadow-card-hover: 0 20px 60px rgba(0,0,0,0.45), 0 0 0 1px var(--border-hover), 0 0 80px rgba(34,211,238,0.06);

    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: var(--bg-primary);
    background-image:
        radial-gradient(ellipse at 20% 8%, rgba(34, 211, 238, 0.05) 0%, transparent 45%),
        radial-gradient(ellipse at 80% 35%, rgba(99, 102, 241, 0.035) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 95%, rgba(34, 211, 238, 0.03) 0%, transparent 35%);
    background-attachment: fixed;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

a { color: inherit; text-decoration: none; transition: var(--transition-fast); }
img { max-width: 100%; height: auto; }

.section-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 120px 32px;
    position: relative;
}

.about-section::before, .experience-section::before, .projects-section::before,
.documents-section::before, .skills-section::before, .certifications-section::before,
.contact-section::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 100px; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.15), transparent);
}

/* ── NAVBAR ───────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: var(--header-h);
    background: rgba(2, 8, 23, 0.65);
    backdrop-filter: blur(28px) saturate(1.5);
    -webkit-backdrop-filter: blur(28px) saturate(1.5);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    height: 58px;
    background: rgba(2, 8, 23, 0.92);
    box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.nav-container {
    max-width: var(--container);
    height: 100%; margin: 0 auto;
    padding: 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.15rem; font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo-accent { color: var(--accent); font-size: 1.35rem; }

.nav-menu { display: flex; gap: 2px; }

.nav-link {
    font-weight: 500; font-size: 0.8rem;
    color: var(--text-muted);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    letter-spacing: 0.02em;
}

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

.mobile-toggle {
    display: none; background: none; border: none;
    cursor: pointer; flex-direction: column;
    gap: 5px; width: 22px; height: 16px;
    justify-content: space-between;
}

.mobile-toggle .bar {
    width: 100%; height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    transform-origin: left center;
}

/* ── HERO ─────────────────────────────────────── */
.hero-section {
    min-height: 100vh;
    display: flex; align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--header-h);
    background:
        radial-gradient(ellipse at 30% 20%, rgba(34, 211, 238, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(99, 102, 241, 0.04) 0%, transparent 50%);
}

.hero-grid-bg {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(34, 211, 238, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(34, 211, 238, 0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at 50% 50%, black 15%, transparent 65%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 15%, transparent 65%);
    pointer-events: none; z-index: 0;
}

.hero-glow-1 {
    position: absolute;
    top: -25%; right: -10%;
    width: 900px; height: 900px;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.09) 0%, transparent 50%);
    pointer-events: none; z-index: 0;
    animation: floatSlow 14s ease-in-out infinite alternate;
}

.hero-glow-2 {
    position: absolute;
    bottom: -15%; left: -8%;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, transparent 50%);
    pointer-events: none; z-index: 0;
    animation: floatSlow 11s ease-in-out infinite alternate-reverse;
}

@keyframes floatSlow {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-30px, 40px); }
}

.hero-network-canvas {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    z-index: 0; pointer-events: auto;
    opacity: 0.7;
}

.hero-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 80px 32px 60px;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 80px;
    align-items: center;
    width: 100%;
    position: relative; z-index: 2;
}

.hero-content { display: flex; flex-direction: column; align-items: flex-start; }

.hero-section .location-badge {
    display: inline-flex; align-items: center;
    gap: 8px;
    background: var(--accent-muted);
    color: var(--accent);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 0.75rem; font-weight: 600;
    margin-bottom: 28px;
    border: 1px solid var(--accent-border);
    letter-spacing: 0.04em;
    backdrop-filter: blur(8px);
}

.icon-location { width: 13px; height: 13px; }

.hero-content h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    letter-spacing: -3px;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #F8FAFC 10%, #22D3EE 45%, #818CF8 85%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.05;
}

.hero-content .tagline {
    font-size: 1.2rem; font-weight: 500;
    color: var(--accent);
    margin-bottom: 28px;
    min-height: 1.6em;
    opacity: 0.9;
}

.typing-cursor {
    color: var(--accent);
    font-weight: 300;
    animation: blink 0.8s step-end infinite;
}

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

.hero-content .bio {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 520px;
    line-height: 1.9;
}

.hero-cta { display: flex; gap: 12px; margin-bottom: 48px; flex-wrap: wrap; }

.hero-stats {
    display: flex; gap: 12px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
}

.stat-item {
    display: flex; flex-direction: column;
    align-items: center; gap: 6px;
    padding: 18px 22px;
    background: rgba(34, 211, 238, 0.04);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(8px);
    min-width: 115px;
    transition: var(--transition);
}

.stat-item:hover {
    border-color: var(--border-hover);
    background: rgba(34, 211, 238, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(34, 211, 238, 0.08);
}

.stat-icon { color: var(--accent); opacity: 0.7; }

.stat-number {
    font-family: var(--font-heading);
    font-size: 1.7rem; font-weight: 800;
    color: var(--accent);
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.63rem; font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    text-align: center;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.visual-container {
    width: 100%; max-width: 360px;
    position: relative;
}

.hero-svg {
    width: 100%; height: auto; display: block;
    opacity: 0.4;
    animation: slowSpin 120s linear infinite;
}

@keyframes slowSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.hero-profile {
    width: 140px; height: 140px;
    border-radius: 50%;
    object-fit: cover;
    position: absolute;
    right: 16px; bottom: 16px;
    z-index: 5;
    border: 2px solid transparent;
    box-shadow: 0 0 40px rgba(34, 211, 238, 0.1);
    transition: var(--transition);
    animation: profilePulse 5s ease-in-out infinite;
}

.hero-profile::before {
    content: '';
    position: absolute; inset: -3px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--secondary), var(--accent));
    z-index: -1;
    animation: borderRotate 6s linear infinite;
    opacity: 0.5;
}

@keyframes borderRotate { 0% { filter: hue-rotate(0deg); } 100% { filter: hue-rotate(360deg); } }

@keyframes profilePulse {
    0%, 100% { box-shadow: 0 0 25px rgba(34,211,238,0.08); }
    50% { box-shadow: 0 0 60px rgba(34,211,238,0.15), 0 0 100px rgba(34,211,238,0.05); }
}

.hero-profile:hover {
    transform: scale(1.1);
    box-shadow: 0 0 80px rgba(34, 211, 238, 0.2), 0 0 120px rgba(34, 211, 238, 0.08);
}

/* ── BUTTONS ──────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 13px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem; font-weight: 600;
    letter-spacing: 0.01em;
    transition: var(--transition);
    cursor: pointer; border: none; gap: 10px;
}

.hero-section .btn-primary {
    background: linear-gradient(135deg, var(--accent), #06B6D4);
    color: #020817; font-weight: 700;
    box-shadow: 0 4px 24px rgba(34, 211, 238, 0.3), 0 0 40px rgba(34, 211, 238, 0.1), inset 0 1px 0 rgba(255,255,255,0.15);
}

.hero-section .btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 50px rgba(34, 211, 238, 0.45), 0 0 60px rgba(34, 211, 238, 0.15), inset 0 1px 0 rgba(255,255,255,0.2);
    filter: brightness(1.1);
}

.hero-section .btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid rgba(148, 163, 184, 0.15);
}

.hero-section .btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 4px 20px rgba(34, 211, 238, 0.08);
}

.hero-section .btn-linkedin {
    background: #0A66C2; color: #fff; font-weight: 700;
    box-shadow: 0 4px 24px rgba(10, 102, 194, 0.25);
}

.hero-section .btn-linkedin:hover {
    background: #0B5FAB;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 40px rgba(10, 102, 194, 0.35);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #06B6D4);
    color: #020817; font-weight: 700;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(34, 211, 238, 0.2);
    filter: brightness(1.1);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}

.btn-sm { padding: 9px 16px; font-size: 0.75rem; }

/* ── SECTION HEADERS ──────────────────────────── */
.section-header { margin-bottom: 64px; }

.subtitle {
    display: inline-block;
    color: var(--accent);
    font-size: 0.68rem; font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 14px;
    padding: 5px 14px;
    background: var(--accent-muted);
    border-radius: var(--radius-full);
    border: 1px solid var(--accent-border);
}

.section-header h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.heading-line {
    width: 48px; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--secondary));
    border-radius: 2px;
    box-shadow: 0 0 14px rgba(34, 211, 238, 0.35);
}

/* ── ABOUT ────────────────────────────────────── */
.about-section { background: var(--bg-secondary); position: relative; overflow: hidden; }

.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px; align-items: start;
}

.about-text p {
    font-size: 0.92rem; color: var(--text-secondary);
    margin-bottom: 18px; line-height: 1.9;
}

.about-text p strong { color: var(--text-primary); }

.about-text .highlight {
    font-size: 1.05rem; font-weight: 500;
    color: var(--text-primary);
    line-height: 1.75;
    margin-bottom: 24px;
    padding-left: 18px;
    border-left: 2px solid var(--accent);
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.about-card {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative; overflow: hidden;
    backdrop-filter: blur(10px);
    will-change: transform;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0; transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card-hover), 0 0 50px rgba(34,211,238,0.05);
}

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

.about-card-icon {
    width: 42px; height: 42px;
    border-radius: 10px;
    background: var(--accent-muted);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 12px;
    border: 1px solid var(--accent-border);
    transition: var(--transition);
}

.about-card:hover .about-card-icon {
    background: var(--accent);
    color: #020817;
    box-shadow: 0 0 24px rgba(34, 211, 238, 0.25);
}

.about-card-icon svg { width: 18px; height: 18px; }
.about-card h3 { font-size: 0.9rem; margin-bottom: 6px; color: var(--text-primary); }
.about-card p { font-size: 0.78rem; color: var(--text-secondary); line-height: 1.65; }

/* ── EXPERIENCE ───────────────────────────────── */
.experience-section { background: var(--bg-primary); position: relative; overflow: hidden; }

.timeline {
    position: relative;
    max-width: 800px; margin: 0 auto;
    padding-left: 36px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 5px; top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent), var(--secondary), transparent);
    opacity: 0.4;
}

.timeline-item { position: relative; margin-bottom: 32px; }
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: -36px; top: 8px;
    width: 11px; height: 11px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2.5px solid var(--accent);
    box-shadow: 0 0 18px rgba(34, 211, 238, 0.4), 0 0 4px rgba(34, 211, 238, 0.6);
    z-index: 2;
}

.timeline-content {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.timeline-content:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card-hover);
    transform: translateX(5px);
}

.timeline-header {
    display: flex; justify-content: space-between;
    align-items: flex-start; flex-wrap: wrap;
    gap: 10px; margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.job-title-group h3 { font-size: 1.1rem; color: var(--text-primary); margin-bottom: 3px; }
.job-title-group .company { font-size: 0.82rem; font-weight: 600; color: var(--accent); }

.timeline-header .period {
    font-size: 0.68rem; font-weight: 700;
    background: var(--accent-muted);
    color: var(--accent);
    padding: 5px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--accent-border);
    letter-spacing: 0.05em;
}

.job-summary { font-size: 0.88rem; font-weight: 500; color: var(--text-primary); margin-bottom: 12px; }

.job-location {
    display: inline-block; font-size: 0.7rem; font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-surface);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 10px;
    border: 1px solid var(--border);
}

.job-details-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }

.job-details-list li {
    position: relative; padding-left: 16px;
    font-size: 0.84rem; color: var(--text-secondary);
    line-height: 1.65;
}

.job-details-list li::before {
    content: '›'; position: absolute; left: 0;
    color: var(--accent); font-weight: bold; font-size: 1rem;
}

.job-details-list li strong { color: var(--text-primary); }

/* ── PROJECTS ─────────────────────────────────── */
.projects-section { background: var(--bg-primary); position: relative; overflow: hidden; }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.project-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
    display: flex; flex-direction: column;
    backdrop-filter: blur(10px);
    position: relative;
    will-change: transform;
}

.project-card:hover {
    transform: translateY(-10px) scale(1.025);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card-hover), 0 0 60px rgba(34,211,238,0.06);
}

.project-image {
    position: relative;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 28px 20px;
    display: flex; align-items: center; justify-content: center;
    min-height: 120px;
}

.project-icon-box {
    width: 50px; height: 50px;
    border-radius: 12px;
    background: var(--accent-muted);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--accent-border);
    transition: var(--transition);
}

.project-icon-box svg { width: 24px; height: 24px; }

.project-card:hover .project-icon-box {
    background: var(--accent);
    color: #020817;
    box-shadow: 0 0 30px rgba(34, 211, 238, 0.3);
    transform: scale(1.1);
}

.project-lang {
    position: absolute;
    top: 10px; right: 10px;
    font-size: 0.6rem; font-weight: 700;
    color: var(--text-muted);
    background: var(--bg-card);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-info { padding: 20px; flex-grow: 1; display: flex; flex-direction: column; }

.project-category {
    font-size: 0.62rem; font-weight: 700;
    text-transform: uppercase;
    color: var(--accent);
    letter-spacing: 1.5px;
    margin-bottom: 6px;
}

.project-card h3 { font-size: 1rem; margin-bottom: 8px; color: var(--text-primary); }

.project-desc {
    font-size: 0.82rem; color: var(--text-secondary);
    margin-bottom: 14px; line-height: 1.6;
    height: 2.6em; overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.project-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 14px; }

.project-tags span {
    font-size: 0.68rem; font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-surface);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.project-actions { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: auto; }
.project-actions .btn { padding: 9px 14px; font-size: 0.75rem; width: 100%; }
.projects-cta { text-align: center; margin-top: 40px; }

/* ── DOCUMENTS ────────────────────────────────── */
.documents-section { background: var(--bg-secondary); position: relative; overflow: hidden; }

.documents-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; gap: 14px; }

.doc-filter-select {
    font-family: inherit; font-size: 0.82rem; font-weight: 600;
    padding: 9px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--bg-card-solid);
    color: var(--text-primary);
    outline: none; cursor: pointer;
    transition: var(--transition);
}

.doc-filter-select:focus { border-color: var(--accent); }

.documents-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.doc-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: grid; grid-template-columns: 220px 1fr;
    overflow: hidden;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.doc-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card-hover);
}

.doc-card-left {
    background: var(--bg-surface);
    padding: 20px 16px;
    display: flex; flex-direction: column; gap: 8px;
    border-right: 1px solid var(--border);
}

.doc-icon-wrapper {
    width: 38px; height: 38px;
    border-radius: 9px;
    background: rgba(234, 179, 8, 0.08);
    color: #EAB308;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(234, 179, 8, 0.12);
}

.doc-icon-wrapper svg { width: 18px; height: 18px; }
.doc-category { font-size: 0.6rem; font-weight: 700; text-transform: uppercase; color: var(--accent); letter-spacing: 1.5px; }
.doc-card-left h3 { font-size: 0.95rem; color: var(--text-primary); line-height: 1.4; }
.doc-card-right { padding: 20px 16px; display: flex; flex-direction: column; gap: 12px; }
.doc-description { font-size: 0.84rem; color: var(--text-secondary); line-height: 1.85; flex: 1; }

.doc-description::first-letter {
    font-size: 1.2rem; font-weight: 700; color: var(--accent);
    float: left; margin-right: 3px; line-height: 1;
}

.doc-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.doc-actions .btn { padding: 7px 12px; font-size: 0.72rem; display: inline-flex; align-items: center; gap: 4px; }
.btn-read { display: inline-flex; align-items: center; gap: 5px; }
.doc-empty { grid-column: 1 / -1; text-align: center; color: var(--text-muted); padding: 48px 20px; }

.doc-meta {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 10px; border-top: 1px solid var(--border);
    margin-top: auto;
}

.doc-date {
    font-size: 0.65rem; color: var(--text-dim); font-weight: 600;
}

.doc-card .btn-delete {
    padding: 5px 10px; font-size: 0.68rem;
    background: var(--danger-bg); color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.12);
}

.doc-card .btn-delete:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
}

/* Admin Panel */
.admin-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0; max-height: 0;
    overflow: hidden; opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease, margin 0.3s ease;
    margin-bottom: 0;
    backdrop-filter: blur(10px);
}

.admin-panel.active { max-height: 2000px; opacity: 1; padding: 24px; margin-bottom: 24px; }

.upload-form, .login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form h3 { font-size: 1.05rem; color: var(--text-primary); }
.login-form p { font-size: 0.8rem; color: var(--text-muted); margin-top: -4px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.upload-form .form-group label, .login-form .form-group label {
    font-size: 0.75rem; font-weight: 600; color: var(--text-secondary);
    margin-bottom: 5px; display: block;
}

.upload-form .form-group input, .upload-form .form-group select,
.login-form .form-group input {
    font-family: inherit; font-size: 0.85rem;
    padding: 9px 12px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    outline: none;
    background: var(--bg-input);
    color: var(--text-primary);
    width: 100%;
    transition: var(--transition);
}

.upload-form .form-group input:focus, .upload-form .form-group select:focus,
.login-form .form-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.upload-form .form-group input[type="file"] { padding: 7px; }
.btn-upload, .btn-login { align-self: flex-start; display: inline-flex; align-items: center; gap: 7px; }

.upload-feedback {
    display: flex; align-items: center; gap: 8px;
    padding: 12px 16px;
    background: var(--success-bg);
    border-radius: var(--radius-sm);
    color: var(--success);
    font-weight: 600; font-size: 0.85rem;
    margin-top: 14px;
    border: 1px solid rgba(16, 185, 129, 0.12);
}



.login-error {
    padding: 8px 12px;
    background: var(--danger-bg); color: var(--danger);
    border-radius: var(--radius-sm);
    font-size: 0.8rem; font-weight: 500;
    border: 1px solid rgba(239, 68, 68, 0.12);
}



.admin-status {
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 14px; margin-bottom: 14px;
    border-bottom: 1px solid var(--border);
}

.admin-badge {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 0.7rem; font-weight: 700;
    color: var(--accent);
    background: var(--accent-muted);
    padding: 5px 10px;
    border-radius: var(--radius-full);
    border: 1px solid var(--accent-border);
}

.btn-link {
    background: none; border: none;
    color: var(--text-muted);
    font-size: 0.75rem; font-weight: 600;
    cursor: pointer; padding: 3px;
    transition: var(--transition-fast);
}

.btn-link:hover { color: var(--danger); }
.hidden { display: none !important; }

/* ── PDF MODAL ────────────────────────────────── */
.pdf-modal {
    display: none; position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(16px);
    z-index: 9999;
    align-items: center; justify-content: center;
    padding: 20px;
}

.pdf-modal.active { display: flex; }

.pdf-modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 100%; max-width: 1000px; height: 85vh;
    display: flex; flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-light);
    box-shadow: 0 30px 100px rgba(0,0,0,0.6);
}

.pdf-modal-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--bg-card-solid);
}

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

.pdf-modal-header h3 {
    font-size: 0.9rem; color: var(--text-primary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    margin-right: 12px;
}

.pdf-modal-close {
    background: none; border: none;
    font-size: 1.5rem; color: var(--text-muted);
    cursor: pointer; line-height: 1; padding: 0 4px;
    transition: var(--transition-fast);
}

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

.pdf-modal-body { flex: 1; overflow-y: auto; background: #0a0f1c; }

.pdf-viewer-container {
    display: flex; flex-direction: column;
    align-items: center; padding: 20px; gap: 16px;
}

.pdf-page {
    position: relative;
    box-shadow: 0 8px 30px rgba(0,0,0,0.5);
    background: white; border-radius: 3px; overflow: hidden;
}

.pdf-page canvas { display: block; max-width: 100%; height: auto; }

.pdf-page-number {
    position: absolute;
    bottom: -28px; left: 50%;
    transform: translateX(-50%);
    font-size: 0.68rem; color: var(--text-dim);
    white-space: nowrap;
}

.pdf-loading { color: var(--text-muted); text-align: center; padding: 48px 20px; }

/* ── SKILLS ───────────────────────────────────── */
.skills-section { background: var(--bg-primary); position: relative; overflow: hidden; }

.skills-wrapper {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px; align-items: start;
}

.skills-intro h3 { font-size: 1.2rem; color: var(--text-primary); margin-bottom: 14px; }
.skills-intro p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 24px; line-height: 1.9; }

.skills-badge-list { display: flex; flex-wrap: wrap; gap: 6px; }

.skills-badge-list .badge {
    font-size: 0.75rem; font-weight: 600;
    background: var(--bg-card);
    color: var(--text-secondary);
    padding: 7px 14px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    transition: var(--transition-fast);
}

.skills-badge-list .badge:hover {
    border-color: var(--border-hover);
    color: var(--accent);
    background: var(--accent-muted);
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.08);
    transform: translateY(-1px);
}

.skills-bars-container { display: flex; flex-direction: column; gap: 22px; }
.skill-group { display: flex; flex-direction: column; gap: 8px; }

.skill-info {
    display: flex; justify-content: space-between;
    font-weight: 600; font-size: 0.85rem;
}

.skill-name { color: var(--text-primary); }
.skill-percentage { color: var(--accent); font-family: var(--font-mono); font-size: 0.78rem; }

.skill-bar {
    width: 100%; height: 6px;
    background: var(--bg-card-solid);
    border-radius: var(--radius-full);
    overflow: hidden; position: relative;
    border: 1px solid var(--border);
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--secondary));
    border-radius: var(--radius-full);
    transition: width 1.5s cubic-bezier(0.1, 1, 0.1, 1);
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    right: 0; top: -2px;
    width: 9px; height: 9px;
    background: var(--accent-bright);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent), 0 0 4px var(--accent);
}

/* ── CERTIFICATIONS ───────────────────────────── */
.certifications-section { background: var(--bg-secondary); position: relative; overflow: hidden; }

.certs-filter { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 28px; }

.cert-filter-btn {
    font-family: inherit;
    font-size: 0.75rem; font-weight: 600;
    padding: 7px 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    background: transparent; color: var(--text-muted);
    cursor: pointer; transition: var(--transition-fast);
}

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

.cert-filter-btn.active {
    background: linear-gradient(135deg, var(--accent), #06B6D4);
    color: #020817; border-color: transparent; font-weight: 700;
    box-shadow: 0 4px 18px rgba(34, 211, 238, 0.2);
}

.certs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px;
    transition: var(--transition);
    display: flex; flex-direction: column; gap: 5px;
}

.cert-card:hover {
    transform: translateY(-4px) scale(1.02);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-card-hover);
}

.cert-icon-wrapper {
    width: 36px; height: 36px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 3px;
    font-size: 0.58rem; font-weight: 800;
    letter-spacing: 0.5px; flex-shrink: 0;
}

.cert-icon-wrapper.aws { background: rgba(251, 146, 60, 0.1); color: #FB923C; border: 1px solid rgba(251,146,60,0.15); }
.cert-icon-wrapper.cisco { background: rgba(96, 165, 250, 0.1); color: #60A5FA; border: 1px solid rgba(96,165,250,0.15); }
.cert-icon-wrapper.kominfo { background: rgba(74, 222, 128, 0.1); color: #4ADE80; border: 1px solid rgba(74,222,128,0.15); }
.cert-icon-wrapper.dicoding { background: rgba(192, 132, 252, 0.1); color: #C084FC; border: 1px solid rgba(192,132,252,0.15); }

.cert-card h3 { font-size: 0.78rem; color: var(--text-primary); line-height: 1.4; }
.cert-org { font-size: 0.68rem; color: var(--text-muted); font-weight: 600; }

.cert-date {
    font-size: 0.65rem; color: var(--accent); font-weight: 600;
    margin-top: auto; padding-top: 6px;
    border-top: 1px solid var(--border);
}

/* ── CONTACT ──────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; align-items: start; }
.contact-info h3 { font-size: 1.2rem; color: var(--text-primary); margin-bottom: 14px; }
.contact-info p { color: var(--text-secondary); font-size: 0.92rem; margin-bottom: 36px; line-height: 1.9; }

.contact-details { list-style: none; display: flex; flex-direction: column; gap: 20px; }
.contact-details li { display: flex; align-items: center; gap: 14px; }

.contact-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    background: var(--accent-muted);
    color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--accent-border);
    flex-shrink: 0;
}

.contact-icon svg { width: 16px; height: 16px; }

.linkedin-icon {
    background: rgba(10, 102, 194, 0.1);
    color: #0A66C2;
    border-color: rgba(10, 102, 194, 0.15);
}

.contact-text { display: flex; flex-direction: column; }

.contact-text .label {
    font-size: 0.65rem; font-weight: 700;
    text-transform: uppercase; color: var(--text-muted);
    letter-spacing: 1px;
}

.contact-text .value { font-size: 0.9rem; font-weight: 600; color: var(--text-primary); }
.contact-text a.value:hover { color: var(--accent); }

.contact-form-container {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(10px);
}

.contact-form { display: flex; flex-direction: column; gap: 16px; transition: var(--transition); }
.contact-form.hidden { opacity: 0; pointer-events: none; transform: scale(0.97); }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.78rem; font-weight: 600; color: var(--text-secondary); }

.form-group input, .form-group textarea {
    font-family: inherit; font-size: 0.85rem;
    padding: 11px 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    outline: none; transition: var(--transition);
    color: var(--text-primary);
    background: var(--bg-input);
    resize: vertical;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-dim); }

.form-feedback {
    position: absolute; inset: 0;
    background: var(--bg-card-solid);
    border-radius: var(--radius-lg);
    display: flex; align-items: center; justify-content: center;
    text-align: center; padding: 32px;
    transition: var(--transition); z-index: 10;
}

.form-feedback.hidden { opacity: 0; pointer-events: none; transform: scale(0.97); }

.feedback-content { display: flex; flex-direction: column; align-items: center; max-width: 300px; }

.feedback-icon {
    width: 56px; height: 56px;
    background: var(--accent-muted);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px;
    border: 1px solid var(--accent-border);
}

.feedback-icon svg { width: 24px; height: 24px; }
.feedback-content h4 { font-size: 1.2rem; margin-bottom: 10px; color: var(--text-primary); }
.feedback-content p { color: var(--text-secondary); font-size: 0.85rem; margin-bottom: 20px; }

/* ── FOOTER ───────────────────────────────────── */
.footer {
    border-top: 1px solid var(--border);
    padding: 56px 32px 28px;
    background: var(--bg-primary);
    background-image: radial-gradient(ellipse at 50% 0%, rgba(34,211,238,0.03) 0%, transparent 45%);
}

.footer-container {
    max-width: var(--container); margin: 0 auto;
    display: flex; flex-direction: column;
    align-items: center; gap: 36px;
}

.footer-brand { text-align: center; }

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.2rem; font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.footer-tagline { font-size: 0.78rem; color: var(--text-muted); margin-top: 5px; }

.footer-social { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }

.social-link {
    display: flex; align-items: center; gap: 7px;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.78rem; font-weight: 600;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}

.social-link svg { width: 16px; height: 16px; flex-shrink: 0; }

.social-link:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(0,0,0,0.3);
}

.social-link.linkedin:hover { color: #60A5FA; border-color: rgba(96,165,250,0.3); background: rgba(96,165,250,0.06); }
.social-link.email:hover { color: var(--accent); border-color: var(--border-hover); background: var(--accent-muted); }
.social-link.whatsapp:hover { color: #4ADE80; border-color: rgba(74,222,128,0.3); background: rgba(74,222,128,0.06); }

.footer-bottom {
    padding-top: 28px;
    border-top: 1px solid var(--border);
    width: 100%; text-align: center;
}

.footer-bottom p { font-size: 0.72rem; color: var(--text-dim); }

/* ── ANIMATIONS ───────────────────────────────── */
.fade-in {
    opacity: 0; transform: translateY(24px);
    animation: fadeInUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-content.fade-in { animation-delay: 0.2s; }
.hero-visual.fade-in { animation-delay: 0.5s; }

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px) scale(0.98);
    transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Stagger children animation */
.about-card, .project-card, .cert-card, .doc-card, .timeline-item, .skill-group {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.revealed .about-card,
.revealed .project-card,
.revealed .cert-card,
.revealed .doc-card,
.revealed .timeline-item,
.revealed .skill-group {
    opacity: 1;
    transform: translateY(0);
}

.revealed .about-card:nth-child(1), .revealed .project-card:nth-child(1), .revealed .cert-card:nth-child(1),
.revealed .timeline-item:nth-child(1), .revealed .skill-group:nth-child(1) { transition-delay: 0.05s; }

.revealed .about-card:nth-child(2), .revealed .project-card:nth-child(2), .revealed .cert-card:nth-child(2),
.revealed .timeline-item:nth-child(2), .revealed .skill-group:nth-child(2) { transition-delay: 0.1s; }

.revealed .about-card:nth-child(3), .revealed .project-card:nth-child(3), .revealed .cert-card:nth-child(3),
.revealed .timeline-item:nth-child(3), .revealed .skill-group:nth-child(3) { transition-delay: 0.15s; }

.revealed .about-card:nth-child(4), .revealed .project-card:nth-child(4), .revealed .cert-card:nth-child(4),
.revealed .timeline-item:nth-child(4), .revealed .skill-group:nth-child(4) { transition-delay: 0.2s; }

.revealed .project-card:nth-child(5), .revealed .cert-card:nth-child(5) { transition-delay: 0.25s; }
.revealed .project-card:nth-child(6), .revealed .cert-card:nth-child(6) { transition-delay: 0.3s; }

@keyframes fadeInUp { to { opacity: 1; transform: translateY(0); } }

/* Glow pulse on hover for cards */
.about-card::after, .project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.4s ease;
    background: radial-gradient(circle at 50% 0%, rgba(34, 211, 238, 0.06), transparent 70%);
    pointer-events: none;
}

.about-card:hover::after, .project-card:hover::after { opacity: 1; }

/* ── RESPONSIVE ───────────────────────────────── */
@media (max-width: 1024px) {
    .section-container { padding: 90px 24px; }
    .hero-section { min-height: auto; }
    .hero-container { grid-template-columns: 1fr; gap: 40px; text-align: center; padding: 50px 24px 70px; }
    .hero-content { align-items: center; }
    .hero-content .bio { margin: 0 auto 32px; }
    .hero-cta { justify-content: center; }
    .hero-stats { justify-content: center; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .about-cards { grid-template-columns: repeat(2, 1fr); }
    .projects-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .skills-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .certs-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .documents-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    :root { --header-h: 56px; }
    .section-container { padding: 64px 18px; }

    .mobile-toggle { display: flex; }

    .nav-menu {
        position: fixed;
        top: var(--header-h); left: 0;
        width: 100%; height: calc(100vh - var(--header-h));
        background: rgba(2, 8, 23, 0.98);
        backdrop-filter: blur(28px);
        flex-direction: column;
        align-items: center; justify-content: center;
        gap: 4px; padding: 32px;
        transform: translateY(-100%);
        opacity: 0; pointer-events: none;
        transition: var(--transition);
        border-top: 1px solid var(--border);
    }

    .nav-menu.active { transform: translateY(0); opacity: 1; pointer-events: all; }
    .nav-link { font-size: 1rem; padding: 10px 20px; }

    .navbar.active .mobile-toggle .bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .navbar.active .mobile-toggle .bar:nth-child(2) { opacity: 0; }
    .navbar.active .mobile-toggle .bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .hero-content h1 { font-size: 2rem !important; letter-spacing: -1.5px; }
    .hero-content .tagline { font-size: 0.95rem; }
    .hero-content .bio { font-size: 0.88rem; }
    .hero-cta { flex-direction: column; width: 100%; max-width: 260px; }
    .hero-cta .btn { width: 100%; justify-content: center; font-size: 0.82rem; }
    .hero-stats { gap: 8px; flex-wrap: wrap; justify-content: center; }
    .stat-item { padding: 12px 14px; min-width: 90px; }
    .stat-number { font-size: 1.3rem; }

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

    .timeline { padding-left: 24px; }
    .timeline::before { left: 4px; }
    .timeline-dot { left: -24px; }
    .timeline-header { flex-direction: column; gap: 6px; }

    .certs-scroller-container {
        overflow-x: auto;
        margin: 0 -18px; padding: 8px 18px 16px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .certs-scroller-container::-webkit-scrollbar { display: none; }
    .certs-grid { display: flex; flex-wrap: nowrap; gap: 10px; width: max-content; }
    .cert-card { width: 200px; scroll-snap-align: start; flex-shrink: 0; }

    .doc-card { grid-template-columns: 1fr; }
    .doc-card-left { border-right: none; border-bottom: 1px solid var(--border); }

    .documents-toolbar { flex-direction: column; align-items: stretch; }
    .form-row { grid-template-columns: 1fr; }
    .admin-panel.active { padding: 18px; }

    .contact-form-container { padding: 22px 16px; }
    .pdf-modal-content { height: 90vh; border-radius: var(--radius-md); }
    .pdf-modal-header { padding: 10px 14px; }

    .footer-social { gap: 6px; }
    .social-link { padding: 8px 14px; font-size: 0.72rem; }
    .social-link span { display: none; }
    .social-link svg { width: 18px; height: 18px; }
}