/* ===== CSS RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-card: #1a2235;
    --bg-card-hover: #1f2a40;
    --text-primary: #f0f2f5;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.3);
    --accent-2: #06b6d4;
    --accent-3: #8b5cf6;
    --gradient-1: linear-gradient(135deg, #3b82f6, #06b6d4);
    --gradient-2: linear-gradient(135deg, #8b5cf6, #3b82f6);
    --gradient-3: linear-gradient(135deg, #06b6d4, #10b981);
    --border: rgba(255,255,255,0.06);
    --border-accent: rgba(59,130,246,0.2);
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-2); }

img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 15, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width var(--transition);
    border-radius: 2px;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ===== HERO ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.4;
    pointer-events: none;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 80px;
    position: relative;
    z-index: 1;
}

.hero-content { flex: 1; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(59,130,246,0.1);
    border: 1px solid var(--border-accent);
    border-radius: 999px;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 8px;
}

.hero h1 .gradient-text {
    background: linear-gradient(90deg, #3b82f6, #06b6d4, #8b5cf6, #3b82f6);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShimmer 6s ease infinite;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 540px;
    line-height: 1.7;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--gradient-1);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
    color: #fff;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 10px;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition);
}

.btn-secondary:hover {
    border-color: var(--accent);
    background: rgba(59,130,246,0.05);
    color: #fff;
}

.hero-image {
    flex-shrink: 0;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: var(--gradient-1);
    padding: 4px;
    position: relative;
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: 68% 20%;
    background: var(--bg-secondary);
    display: block;
}

.hero-image::after {
    content: '';
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    border: 1px dashed var(--border-accent);
    animation: rotate 30s linear infinite;
}

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

.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.stat-item .stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item .stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ===== SECTIONS (generic) ===== */
.section {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-label::before,
.section-label::after {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent);
    opacity: 0.4;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 12px auto 0;
    line-height: 1.6;
}

/* ===== ABOUT ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
    font-size: 1rem;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.highlight-card {
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.highlight-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.highlight-card .h-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.highlight-card h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.highlight-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== AI INNOVATION ===== */
.ai-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.ai-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.ai-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity var(--transition);
}

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

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

.ai-card .card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.ai-card:nth-child(1) .card-icon { background: rgba(59,130,246,0.15); }
.ai-card:nth-child(2) .card-icon { background: rgba(6,182,212,0.15); }
.ai-card:nth-child(3) .card-icon { background: rgba(139,92,246,0.15); }

.ai-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.ai-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== EXPERIENCE / TIMELINE ===== */
.timeline {
    position: relative;
    max-width: 760px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-2), var(--accent-3));
    opacity: 0.3;
}

.timeline-item {
    position: relative;
    padding-left: 44px;
    margin-bottom: 40px;
}

.timeline-dot {
    position: absolute;
    left: 0;
    top: 6px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 3px solid var(--accent);
    background: var(--bg-primary);
    z-index: 1;
}

.timeline-item:nth-child(2) .timeline-dot { border-color: var(--accent-2); }
.timeline-item:nth-child(3) .timeline-dot { border-color: var(--accent-3); }
.timeline-item:nth-child(4) .timeline-dot { border-color: #10b981; }
.timeline-item:nth-child(5) .timeline-dot { border-color: #f59e0b; }

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

.timeline-content:hover {
    border-color: var(--border-accent);
    transform: translateX(4px);
}

.timeline-date {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 4px;
}

.timeline-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.timeline-content .tl-role {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== SKILLS ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.skill-category {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.skill-category:hover {
    border-color: var(--border-accent);
    transform: translateY(-3px);
}

.skill-category .sk-icon {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.skill-category h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.skill-tag {
    padding: 4px 10px;
    background: rgba(59,130,246,0.08);
    border: 1px solid rgba(59,130,246,0.12);
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.skill-tag:hover {
    background: rgba(59,130,246,0.15);
    color: var(--accent);
}

/* ===== CERTIFICATIONS ===== */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.cert-card {
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: all var(--transition);
}

.cert-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

.cert-badge {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(59,130,246,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.cert-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.cert-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ===== AWARDS ===== */
.awards-row {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.award-chip {
    padding: 14px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all var(--transition);
}

.award-chip:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

.award-chip .aw-icon {
    font-size: 1.3rem;
}

.award-chip h4 {
    font-size: 0.9rem;
    font-weight: 600;
}

.award-chip span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== EDUCATION ===== */
.edu-card {
    max-width: 600px;
    margin: 0 auto;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-align: center;
}

.edu-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.edu-card .edu-school {
    color: var(--accent);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.edu-card .edu-details {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== CONTACT ===== */
.contact-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.contact-inner {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-quote {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 40px;
    padding: 0 20px;
    border-left: 3px solid var(--accent);
    text-align: left;
}

.contact-grid {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.contact-chip {
    padding: 14px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.contact-chip:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.contact-chip .cc-icon {
    font-size: 1.1rem;
}

.contact-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ===== FOOTER ===== */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

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

/* ===== ANIMATIONS ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

#hero-particles {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

@keyframes gradientShimmer {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-text {
    background: linear-gradient(90deg, #3b82f6, #06b6d4, #8b5cf6, #3b82f6);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShimmer 6s ease infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-badge {
    animation: float 6s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(59,130,246,0.3), 0 0 40px rgba(6,182,212,0.15); }
    50% { box-shadow: 0 0 30px rgba(59,130,246,0.5), 0 0 60px rgba(6,182,212,0.25), 0 0 80px rgba(139,92,246,0.1); }
}

.hero-image {
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes gridSweep {
    0% { background-position: 0px 0px, 0px 0px; opacity: 0.4; }
    50% { opacity: 0.8; }
    100% { background-position: 60px 60px, 60px 60px; opacity: 0.4; }
}

.hero-bg-grid {
    animation: gridSweep 8s linear infinite;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.4; }
    50% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.6; }
}

.hero-glow {
    animation: orbFloat 7s ease-in-out infinite;
}

.ai-card:hover,
.skill-category:hover,
.cert-card:hover {
    box-shadow: 0 0 20px var(--accent-glow), 0 4px 24px rgba(0,0,0,0.4);
}

.ai-card,
.skill-category,
.cert-card {
    transition: all var(--transition), box-shadow 0.4s ease;
}

/* ===== PROFESSIONAL BACKGROUND VISUALS ===== */

/* Network topology mesh — AI Innovation section */
#innovation::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='200' height='200' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='20' cy='20' r='2' fill='rgba(59,130,246,0.28)'/%3E%3Ccircle cx='100' cy='40' r='1.5' fill='rgba(6,182,212,0.22)'/%3E%3Ccircle cx='180' cy='20' r='2' fill='rgba(139,92,246,0.22)'/%3E%3Ccircle cx='60' cy='100' r='1.5' fill='rgba(59,130,246,0.18)'/%3E%3Ccircle cx='140' cy='100' r='2' fill='rgba(6,182,212,0.28)'/%3E%3Ccircle cx='20' cy='180' r='1.5' fill='rgba(139,92,246,0.18)'/%3E%3Ccircle cx='100' cy='160' r='2' fill='rgba(59,130,246,0.22)'/%3E%3Ccircle cx='180' cy='180' r='1.5' fill='rgba(6,182,212,0.18)'/%3E%3Cline x1='20' y1='20' x2='100' y2='40' stroke='rgba(59,130,246,0.15)' stroke-width='0.8'/%3E%3Cline x1='100' y1='40' x2='180' y2='20' stroke='rgba(6,182,212,0.15)' stroke-width='0.8'/%3E%3Cline x1='100' y1='40' x2='60' y2='100' stroke='rgba(139,92,246,0.12)' stroke-width='0.8'/%3E%3Cline x1='100' y1='40' x2='140' y2='100' stroke='rgba(59,130,246,0.12)' stroke-width='0.8'/%3E%3Cline x1='60' y1='100' x2='20' y2='180' stroke='rgba(6,182,212,0.12)' stroke-width='0.8'/%3E%3Cline x1='140' y1='100' x2='180' y2='180' stroke='rgba(139,92,246,0.12)' stroke-width='0.8'/%3E%3Cline x1='60' y1='100' x2='100' y2='160' stroke='rgba(59,130,246,0.15)' stroke-width='0.8'/%3E%3Cline x1='140' y1='100' x2='100' y2='160' stroke='rgba(6,182,212,0.15)' stroke-width='0.8'/%3E%3C/svg%3E");
    background-size: 200px 200px;
    opacity: 0.7;
    pointer-events: none;
    z-index: 0;
}

#innovation .container { position: relative; z-index: 1; }

/* Circuit board traces — Skills section */
#skills::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='300' height='300' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 150 H80 V60 H150' stroke='rgba(59,130,246,0.10)' stroke-width='1.2' fill='none'/%3E%3Cpath d='M300 150 H220 V240 H150' stroke='rgba(6,182,212,0.10)' stroke-width='1.2' fill='none'/%3E%3Cpath d='M150 0 V80 H240 V150' stroke='rgba(139,92,246,0.10)' stroke-width='1.2' fill='none'/%3E%3Cpath d='M150 300 V220 H60 V150' stroke='rgba(59,130,246,0.10)' stroke-width='1.2' fill='none'/%3E%3Ccircle cx='80' cy='150' r='3' fill='rgba(59,130,246,0.15)'/%3E%3Ccircle cx='150' cy='60' r='3' fill='rgba(6,182,212,0.15)'/%3E%3Ccircle cx='220' cy='150' r='3' fill='rgba(139,92,246,0.15)'/%3E%3Ccircle cx='150' cy='240' r='3' fill='rgba(59,130,246,0.15)'/%3E%3Ccircle cx='80' cy='60' r='2' fill='rgba(6,182,212,0.12)'/%3E%3Ccircle cx='240' cy='150' r='2' fill='rgba(59,130,246,0.12)'/%3E%3Ccircle cx='60' cy='150' r='2' fill='rgba(139,92,246,0.12)'/%3E%3C/svg%3E");
    background-size: 300px 300px;
    opacity: 0.8;
    pointer-events: none;
    z-index: 0;
}

#skills .container { position: relative; z-index: 1; }

/* Gradient orb glow — About section */
#about::after {
    content: '';
    position: absolute;
    top: -100px;
    right: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

#about .container { position: relative; z-index: 1; }

/* Subtle gradient mesh — Certifications section */
#certifications::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -150px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(6,182,212,0.12) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

#certifications .container { position: relative; z-index: 1; }

/* ===== SOCIAL LINKS ===== */
.social-links {
    display: flex;
    gap: 16px;
    margin-top: 24px;
    justify-content: flex-start;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    max-width: 44px;
    max-height: 44px;
    flex-shrink: 0;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.04);
    color: var(--text-secondary);
    transition: all 0.3s ease;
    overflow: hidden;
}

.social-icon svg {
    width: 20px;
    height: 20px;
    max-width: 20px;
    max-height: 20px;
    flex-shrink: 0;
}

.social-icon:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(59,130,246,0.1);
    transform: translateY(-3px);
    box-shadow: 0 4px 20px rgba(59,130,246,0.25);
}

.contact-socials {
    justify-content: center;
    margin-top: 28px;
}

/* Floating particles — Contact section */
.contact-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 10% 30%, rgba(59,130,246,0.18) 0%, transparent 50%),
        radial-gradient(circle at 90% 70%, rgba(139,92,246,0.14) 0%, transparent 50%),
        radial-gradient(circle at 50% 10%, rgba(6,182,212,0.12) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.contact-inner { position: relative; z-index: 1; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero .container { flex-direction: column; text-align: center; gap: 40px; }
    .hero-description { margin: 0 auto 32px; }
    .hero-actions { justify-content: center; }
    .social-links { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-image { width: 260px; height: 260px; }
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .ai-cards { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10,15,26,0.98);
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
    }
    .nav-toggle { display: flex; }
    .hero h1 { font-size: 2.5rem; }
    .section-title { font-size: 2rem; }
    .hero-stats { flex-direction: column; gap: 16px; align-items: center; }
    .skills-grid { grid-template-columns: 1fr; }
    .certs-grid { grid-template-columns: 1fr; }
    .contact-actions { flex-direction: column; align-items: center; }
}