/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --bg-card: rgba(26, 26, 36, 0.6);
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    --accent: #00d4aa;
    --accent-dim: rgba(0, 212, 170, 0.15);
    --accent-glow: rgba(0, 212, 170, 0.4);
    --accent-secondary: #7c3aed;
    --accent-secondary-dim: rgba(124, 58, 237, 0.15);
    --border: rgba(255, 255, 255, 0.06);
    --font-sans: 'Outfit', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===== Background Effects ===== */
.bg-base {
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 170, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 100% 100%, rgba(124, 58, 237, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 0% 80%, rgba(0, 212, 170, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.bg-aurora {
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(ellipse 100% 80% at 70% 20%, rgba(0, 212, 170, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse 80% 60% at 20% 80%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 60% 100% at 90% 60%, rgba(0, 212, 170, 0.06) 0%, transparent 50%);
    opacity: 0.8;
    pointer-events: none;
    z-index: 0;
    animation: auroraShift 15s ease-in-out infinite;
}

@keyframes auroraShift {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.9; }
}

.bg-shapes {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.bg-shape {
    position: absolute;
    border: 1px solid rgba(0, 212, 170, 0.08);
    border-radius: 50%;
    animation: shapeFloat 25s ease-in-out infinite;
}

.bg-shape-1 {
    width: 400px;
    height: 400px;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.bg-shape-2 {
    width: 250px;
    height: 250px;
    top: 60%;
    right: 10%;
    border-color: rgba(124, 58, 237, 0.06);
    animation-delay: -5s;
    animation-duration: 30s;
}

.bg-shape-3 {
    width: 150px;
    height: 150px;
    bottom: 20%;
    left: 20%;
    animation-delay: -10s;
    animation-duration: 20s;
}

.bg-shape-4 {
    width: 80px;
    height: 80px;
    top: 30%;
    right: 25%;
    border-color: rgba(0, 212, 170, 0.1);
    animation-delay: -15s;
}

.bg-shape-5 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    margin: -150px 0 0 -150px;
    border-color: rgba(124, 58, 237, 0.05);
    animation-delay: -8s;
    animation-duration: 35s;
}

.bg-shape-6 {
    width: 120px;
    height: 120px;
    top: 75%;
    right: 30%;
    animation-delay: -12s;
}

@keyframes shapeFloat {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
    25% { transform: translate(30px, -20px) scale(1.05); opacity: 0.8; }
    50% { transform: translate(-20px, 30px) scale(0.95); opacity: 0.6; }
    75% { transform: translate(15px, 15px) scale(1.02); opacity: 0.7; }
}

.bg-dots {
    position: fixed;
    inset: 0;
    background-image: radial-gradient(rgba(0, 212, 170, 0.15) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
    animation: dotsPulse 10s ease-in-out infinite;
}

@keyframes dotsPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.bg-shimmer {
    position: fixed;
    inset: 0;
    background: linear-gradient(
        105deg,
        transparent 0%,
        transparent 40%,
        rgba(0, 212, 170, 0.03) 50%,
        transparent 60%,
        transparent 100%
    );
    background-size: 200% 100%;
    pointer-events: none;
    z-index: 0;
    animation: shimmerMove 8s ease-in-out infinite;
}

@keyframes shimmerMove {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@media (prefers-reduced-motion: reduce) {
    .bg-aurora,
    .bg-shapes .bg-shape,
    .bg-dots,
    .bg-shimmer {
        animation: none;
    }
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 170, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 170, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
    animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.bg-glow-line {
    position: fixed;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
    animation: glowLineMove 12s ease-in-out infinite;
}

.bg-glow-line-1 {
    top: 20%;
    left: 0;
    width: 100%;
    animation-delay: 0s;
}

.bg-glow-line-2 {
    top: 50%;
    left: -50%;
    width: 150%;
    opacity: 0.08;
    animation-delay: -4s;
    animation-duration: 15s;
}

.bg-glow-line-3 {
    bottom: 25%;
    left: 0;
    width: 100%;
    opacity: 0.1;
    animation-delay: -8s;
}

@keyframes glowLineMove {
    0%, 100% { transform: translateX(0) scaleX(1); opacity: 0.1; }
    50% { transform: translateX(5%) scaleX(1.1); opacity: 0.2; }
}

.noise-overlay {
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.04;
    pointer-events: none;
    z-index: 0;
}

.gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
    animation: orbFloat 20s ease-in-out infinite;
}

.gradient-orb-1 {
    width: 650px;
    height: 650px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(0, 212, 170, 0.1) 40%, transparent 70%);
    top: -250px;
    right: -200px;
    animation-delay: 0s;
    animation: orbFloat 25s ease-in-out infinite;
}

.gradient-orb-2 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--accent-secondary) 0%, rgba(124, 58, 237, 0.15) 40%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation-delay: -7s;
    animation: orbFloat 22s ease-in-out infinite reverse;
}

.gradient-orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.25) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    margin-left: -175px;
    margin-top: -175px;
    animation-delay: -14s;
    animation: orbFloat 18s ease-in-out infinite;
}

.gradient-orb-4 {
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.3) 0%, transparent 70%);
    top: 30%;
    left: 10%;
    animation-delay: -3s;
    animation: orbFloat 30s ease-in-out infinite;
}

.gradient-orb-5 {
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.2) 0%, transparent 70%);
    bottom: 30%;
    right: 15%;
    animation-delay: -11s;
    animation: orbFloat 28s ease-in-out infinite reverse;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    25% { transform: translate(40px, -40px) scale(1.08) rotate(2deg); }
    50% { transform: translate(-30px, 30px) scale(0.95) rotate(-1deg); }
    75% { transform: translate(20px, 20px) scale(1.03) rotate(1deg); }
}

.particles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.4;
    animation: particleFloat 15s ease-in-out infinite;
}

.particle:nth-child(odd) {
    background: var(--accent-secondary);
    animation-duration: 20s;
    animation-delay: -5s;
}

@keyframes particleFloat {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.3; }
    25% { transform: translate(30px, -50px) scale(1.2); opacity: 0.6; }
    50% { transform: translate(-20px, -80px) scale(0.8); opacity: 0.4; }
    75% { transform: translate(40px, -30px) scale(1.1); opacity: 0.5; }
}

.bg-border-glow {
    position: fixed;
    inset: 0;
    background: 
        linear-gradient(135deg, rgba(0, 212, 170, 0.06) 0%, transparent 50%),
        linear-gradient(225deg, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
        linear-gradient(315deg, rgba(0, 212, 170, 0.04) 0%, transparent 50%),
        linear-gradient(45deg, rgba(124, 58, 237, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: cornerGlowPulse 6s ease-in-out infinite;
}

.bg-border-glow::after {
    content: '';
    position: absolute;
    inset: 2px;
    background: var(--bg-primary);
    z-index: -1;
}

@keyframes cornerGlowPulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.vignette {
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 0%, transparent 50%, rgba(0, 0, 0, 0.35) 100%);
    pointer-events: none;
    z-index: 0;
}

.scanlines {
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.02) 2px,
        rgba(0, 0, 0, 0.02) 4px
    );
    pointer-events: none;
    z-index: 0;
    animation: scanlineFade 5s ease-in-out infinite;
}

@keyframes scanlineFade {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 1.25rem 3rem;
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition-medium);
}

.navbar.scrolled {
    padding: 0.75rem 3rem;
    background: rgba(10, 10, 15, 0.9);
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition-fast);
    justify-self: start;
}

.nav-logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 20px var(--accent-glow);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    justify-self: center;
}

.nav-social {
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-self: end;
}

.nav-social-link {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.nav-social-link:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

.nav-social-link svg {
    display: block;
}

.nav-slideout {
    display: contents;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    transition: var(--transition-fast);
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 3rem 4rem;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeSlideUp 0.8s ease forwards;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: fadeSlideUp 0.8s ease 0.15s forwards;
}

.hero-tagline {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
    opacity: 0;
    animation: fadeSlideUp 0.8s ease 0.3s forwards;
}

.hero-subtitle {
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
    max-width: 480px;
    opacity: 0;
    animation: fadeSlideUp 0.8s ease 0.45s forwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    opacity: 0;
    animation: fadeSlideUp 0.8s ease 0.6s forwards;
}

.btn {
    display: inline-block;
    padding: 0.9rem 1.8rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition-medium);
    font-family: var(--font-sans);
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
    border: 2px solid var(--accent);
}

.btn-primary:hover {
    background: transparent;
    color: var(--accent);
    box-shadow: 0 0 30px var(--accent-dim);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border);
}

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

.hero-visual {
    opacity: 0;
    animation: fadeSlideUp 1s ease 0.5s forwards;
}

.code-block {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.code-line {
    display: block;
    margin-bottom: 0.5rem;
}

.code-keyword {
    color: var(--accent-secondary);
}

.code-string {
    color: var(--accent);
}

.code-cursor {
    display: inline-block;
    width: 8px;
    height: 1.2em;
    background: var(--accent);
    margin-left: 4px;
    vertical-align: text-bottom;
    animation: cursorBlink 1s step-end infinite;
}

@keyframes cursorBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Section Styles ===== */
section {
    padding: 6rem 3rem;
    position: relative;
    z-index: 1;
}

.section-header {
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent);
    font-weight: 500;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* ===== About Section ===== */
.about {
    background: linear-gradient(180deg, transparent 0%, var(--bg-secondary) 50%, transparent 100%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
}

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

.about-card {
    position: relative;
    padding: 2px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    border-radius: var(--radius-md);
    transition: var(--transition-medium);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 212, 170, 0.2);
}

.about-card-inner {
    background: var(--bg-tertiary);
    border-radius: calc(var(--radius-md) - 2px);
    padding: 2rem;
}

.about-label {
    font-size: 0.8rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.about-card-inner h3 {
    font-size: 1.25rem;
    margin: 0.5rem 0 0.25rem;
}

.about-card-inner p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.about-year {
    color: var(--text-muted) !important;
    font-size: 0.85rem !important;
    margin-top: 0.5rem !important;
}

/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1.25rem;
}

.skill-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: var(--transition-medium);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        var(--accent-dim) 0%,
        transparent 40%
    );
    opacity: 0;
    transition: opacity var(--transition-medium);
    pointer-events: none;
}

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

.skill-card:hover {
    border-color: var(--accent);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 35px var(--accent-dim);
}

.skill-icon {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent);
}

.skill-name {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

.skill-card[data-skill="Web"] .skill-name {
    font-size: 0.8rem;
    line-height: 1.3;
}

/* ===== Certifications Section ===== */
.certifications {
    position: relative;
    z-index: 1;
    background: linear-gradient(180deg, transparent 0%, var(--bg-secondary) 50%, transparent 100%);
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: var(--transition-medium);
}

.cert-card:hover {
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px var(--accent-dim);
}

.cert-image-wrap {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--bg-tertiary);
}

.cert-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-medium);
}

.cert-card:hover .cert-image-wrap img {
    transform: scale(1.05);
}

.cert-info {
    padding: 1.5rem;
}

.cert-platform {
    font-size: 0.75rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.cert-info h3 {
    font-size: 1.15rem;
    margin: 0.5rem 0 0.75rem;
    line-height: 1.4;
}

.cert-instructor {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.cert-meta {
    color: var(--text-muted);
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .certifications-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Timeline Section ===== */
.timeline {
    position: relative;
    z-index: 1;
    background: linear-gradient(180deg, transparent 0%, var(--bg-secondary) 30%, var(--bg-secondary) 70%, transparent 100%);
}

.timeline-container {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--accent-secondary));
    border-radius: 2px;
    animation: timelinePulse 3s ease-in-out infinite;
}

@keyframes timelinePulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    padding-bottom: 3rem;
}

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

.timeline-dot {
    position: absolute;
    left: 12px;
    top: 8px;
    width: 18px;
    height: 18px;
    background: var(--bg-primary);
    border: 3px solid var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--accent-dim);
    transition: var(--transition-medium);
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.2);
    box-shadow: 0 0 30px var(--accent-glow);
}

.timeline-content {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: var(--transition-medium);
}

.timeline-item:hover .timeline-content {
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateX(8px);
    box-shadow: 0 10px 40px var(--accent-dim);
}

.timeline-tag {
    font-size: 0.75rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin: 0.5rem 0 0.75rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .timeline-container {
        padding: 0 0.5rem;
    }

    .timeline-line {
        left: 14px;
    }

    .timeline-item {
        padding-left: 50px;
        padding-bottom: 2rem;
    }

    .timeline-dot {
        left: 6px;
        width: 16px;
        height: 16px;
    }

    .timeline-content {
        padding: 1.25rem;
    }
}

/* ===== Projects Section ===== */
.projects {
    background: linear-gradient(180deg, transparent 0%, var(--bg-secondary) 50%, transparent 100%);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.project-card {
    position: relative;
    padding: 2.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    overflow: hidden;
    transition: var(--transition-medium);
}

.project-card:hover {
    border-color: rgba(0, 212, 170, 0.3);
    transform: translateY(-8px);
}

.project-card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, var(--accent-dim) 0%, transparent 50%);
    opacity: 0;
    transition: var(--transition-slow);
}

.project-card:hover .project-card-glow {
    opacity: 1;
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.project-number {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
}

.project-tag {
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 20px;
    font-weight: 500;
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    transition: var(--transition-fast);
}

.project-card:hover h3 {
    color: var(--accent);
}

.project-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tech span {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    border: 1px solid var(--border);
    transition: var(--transition-fast);
}

.project-card:hover .project-tech span {
    border-color: rgba(0, 212, 170, 0.2);
    color: var(--text-secondary);
}

.projects-loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.projects-error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

a.project-card {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

/* ===== Contact Section ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    max-width: 600px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: var(--bg-card);
    padding: 2.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: var(--transition-fast);
    outline: none;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-dim);
}

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

.form-submit {
    margin-top: 0.5rem;
    align-self: flex-start;
}

.contact-intro {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-link {
    display: flex;
    flex-direction: column;
    padding: 1.25rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-medium);
}

.contact-link:hover {
    border-color: var(--accent);
    transform: translateX(10px);
    box-shadow: 0 10px 30px var(--accent-dim);
}

.contact-link-icon {
    font-size: 0.8rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

.contact-link-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.contact-link:hover .contact-link-text {
    color: var(--text-primary);
}

.contact-location {
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===== Footer ===== */
.footer {
    padding: 2rem 3rem;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

.footer-year {
    margin-top: 0.25rem;
    font-size: 0.8rem;
    opacity: 0.7;
}

/* ===== Scroll Animations (JS will add classes) ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

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

    .about-card {
        max-width: 400px;
        margin: 0 auto;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem 1.5rem;
        grid-template-columns: 1fr auto;
    }

    .nav-slideout {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        border-left: 1px solid var(--border);
        transition: var(--transition-medium);
        z-index: 99;
    }

    .nav-slideout.active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        list-style: none;
    }

    .nav-social {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--border);
    }

    .nav-toggle {
        display: flex;
        z-index: 101;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .hero {
        padding: 5rem 1.5rem 3rem;
    }

    .hero-visual {
        display: none;
    }

    section {
        padding: 4rem 1.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

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

    .contact-form {
        padding: 1.5rem;
    }
    
    .form-submit {
        align-self: stretch;
    }

    .footer {
        padding: 1.5rem;
    }
}

/* Accessibility Utilities */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--accent);
    color: var(--bg-primary);
    padding: 8px 16px;
    z-index: 200;
    font-weight: bold;
    text-decoration: none;
    transition: top 0.2s;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.skip-link:focus {
    top: 0;
    outline: none;
    box-shadow: 0 0 15px var(--accent-glow);
}