/* ===========================
   CUSTOM PROPERTIES
   =========================== */
:root {
    --bg: #040f1a;
    --bg-card: #0a1d30;
    --bg-card-hover: #12314c;
    --bg-elevated: #194360;
    --text: #eaf6ff;
    --text-secondary: #a9c4dc;
    --text-muted: #6d8dab;
    --accent: #2dd4bf;
    --accent-dim: rgba(45, 212, 191, 0.1);
    --accent-glow: rgba(45, 212, 191, 0.22);
    --border: rgba(126, 167, 202, 0.2);
    --border-hover: rgba(126, 167, 202, 0.34);
    --gradient: linear-gradient(135deg, #2dd4bf 0%, #2563eb 100%);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* ===========================
   RESET
   =========================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #5eead4; }
img, video { max-width: 100%; display: block; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 28px; }

/* ===========================
   CURSOR GLOW
   =========================== */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.08) 0%, rgba(37, 99, 235, 0.05) 38%, transparent 72%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.5s ease;
    will-change: left, top;
}

/* ===========================
   NAVIGATION
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(4, 15, 26, 0.82);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
}

.nav-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-family: var(--font);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.nav-logo .dot { color: var(--accent); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 36px;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color var(--transition);
}

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

.nav-cta {
    background: var(--accent-dim) !important;
    color: var(--accent) !important;
    padding: 8px 20px;
    border-radius: 50px;
    border: 1px solid rgba(45, 212, 191, 0.3);
    transition: all var(--transition) !important;
}

.nav-cta:hover {
    background: rgba(45, 212, 191, 0.18) !important;
    border-color: var(--accent) !important;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===========================
   HERO
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
    padding: 0 28px 80px;
    position: relative;
}

.hero-container {
    max-width: 1140px;
    margin: 0 auto;
    width: 100%;
    padding-top: 160px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent-dim);
    border: 1px solid rgba(45, 212, 191, 0.25);
    padding: 8px 20px;
    border-radius: 50px;
    margin-bottom: 40px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.04em;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #0ea5e9;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(14, 165, 233, 0.5); }
    50% { box-shadow: 0 0 0 6px rgba(14, 165, 233, 0); }
}

.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 5.5vw, 4.8rem);
    font-weight: 700;
    line-height: 1.16;
    margin-bottom: 50px;
    letter-spacing: -0.02em;
}

.hero-headline .line { display: block; }

.hero-headline em {
    display: inline-block;
    padding: 0.02em 0.1em 0.08em 0.02em;
    font-style: italic;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
}

.hero-bottom {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: end;
}

.hero-bio p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    line-height: 1.8;
}

.hero-profile {
    display: flex;
    align-items: center;
    gap: 20px;
}

.profile-img-wrap {
    width: 156px;
    height: 156px;
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid rgba(45, 212, 191, 0.38);
    padding: 5px;
    background: linear-gradient(145deg, rgba(45, 212, 191, 0.5), rgba(14, 165, 233, 0.3) 45%, rgba(37, 99, 235, 0.55));
    box-shadow: 0 18px 36px rgba(45, 212, 191, 0.2);
    flex-shrink: 0;
    transform: rotate(-3deg);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.hero-profile:hover .profile-img-wrap {
    transform: translateY(-4px) rotate(0deg);
    border-color: rgba(37, 99, 235, 0.68);
    box-shadow: 0 24px 45px rgba(37, 99, 235, 0.24);
}

.profile-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 8%;
    border-radius: 17px;
    filter: saturate(1.06) contrast(1.03);
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meta-item {
    font-size: 0.82rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.meta-item i { color: var(--accent); font-size: 0.75rem; }

.hero-scroll {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 80px;
}

.hero-scroll span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
}

.scroll-line {
    flex: 1;
    height: 1px;
    background: var(--border);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 60px;
    height: 100%;
    background: var(--accent);
    animation: scroll-move 2.5s ease-in-out infinite;
}

@keyframes scroll-move {
    0% { transform: translateX(-60px); }
    100% { transform: translateX(calc(100vw)); }
}

/* ===========================
   MARQUEE
   =========================== */
.marquee-section {
    padding: 24px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.marquee-track { overflow: hidden; }

.marquee-content {
    display: flex;
    gap: 0;
    animation: marquee 30s linear infinite;
    white-space: nowrap;
}

.marquee-content span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    padding: 0 16px;
    text-transform: uppercase;
}

.marquee-content .sep {
    color: var(--accent);
    font-size: 0.5rem;
    padding: 0 8px;
}

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

/* ===========================
   SECTIONS
   =========================== */
.section { padding: 120px 0; }

.section-header { margin-bottom: 64px; }

.section-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    color: var(--accent);
    text-transform: uppercase;
    display: block;
    margin-bottom: 16px;
}

.section-heading {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* ===========================
   CASE STUDY CARDS
   =========================== */
.case-card {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 40px;
    transition: all var(--transition);
}

.case-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 0 60px rgba(45, 212, 191, 0.1);
    transform: translateY(-4px);
}

.case-card--reverse { direction: rtl; }
.case-card--reverse > * { direction: ltr; }
.case-card--text-only { grid-template-columns: 1fr; }

.case-media {
    position: relative;
    height: 100%;
    min-height: 240px;
    max-height: 340px;
    overflow: hidden;
    background: #0d1f33;
}

.case-slideshow .slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    object-fit: cover;
}

.case-slideshow.slides-3 .slide { animation: slideshow-3 12s infinite; }
.case-slideshow.slides-3 .slide:nth-child(1) { animation-delay: 0s; }
.case-slideshow.slides-3 .slide:nth-child(2) { animation-delay: 4s; }
.case-slideshow.slides-3 .slide:nth-child(3) { animation-delay: 8s; }

@keyframes slideshow-3 {
    0%, 30% { opacity: 1; }
    33%, 100% { opacity: 0; }
}

.case-slideshow.slides-2 .slide { animation: slideshow-2 10s infinite; }
.case-slideshow.slides-2 .slide:nth-child(1) { animation-delay: 0s; }
.case-slideshow.slides-2 .slide:nth-child(2) { animation-delay: 5s; }

@keyframes slideshow-2 {
    0%, 45% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

.case-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.case-media video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.6s ease;
}

.case-card:hover .case-media img,
.case-card:hover .case-media video {
    transform: scale(1.04);
}

.case-card:hover .case-slideshow .slide {
    transform: none;
}

.case-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
}

.case-card:hover .case-overlay { opacity: 1; }

.play-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    transform: translateY(8px);
}

.case-card:hover .play-btn { transform: translateY(0); }

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

.play-btn i { font-size: 0.8rem; }

.case-info {
    padding: 48px 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.case-company {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    color: var(--accent);
    text-transform: uppercase;
}

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

.case-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.35;
    letter-spacing: -0.01em;
}

.case-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.75;
    margin-bottom: 24px;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.case-tags span {
    background: var(--accent-dim);
    color: var(--accent);
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border: 1px solid rgba(45, 212, 191, 0.2);
}

/* ===========================
   ABOUT
   =========================== */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
}

.big-text {
    font-size: 1.5rem;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text);
}

.big-text em {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--accent);
}

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

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

/* Expertise Grid */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 80px;
}

.expertise-card {
    background: var(--bg-card);
    padding: 40px 32px;
    transition: all var(--transition);
}

.expertise-card:hover {
    background: var(--bg-card-hover);
}

.expertise-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 20px;
}

.expertise-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.expertise-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
}

/* Stats Row */
.stats-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    padding: 60px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin-bottom: 80px;
}

.stat { text-align: center; }

.stat-num {
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--text);
    display: block;
    line-height: 1;
    letter-spacing: -0.03em;
}

.stat-text {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 8px;
    display: block;
    line-height: 1.5;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background: var(--border);
}

/* Skills Strip */
.skills-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.skill-group h5 {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 14px;
}

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

.pills span {
    background: var(--accent-dim);
    color: var(--text-secondary);
    padding: 5px 14px;
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.pills span:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ===========================
   RESEARCH
   =========================== */
.research-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.research-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 44px;
    transition: all var(--transition);
    position: relative;
}

.research-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateX(6px);
}

.research-status-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 50px;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.research-status-badge.ongoing {
    background: rgba(59, 130, 246, 0.12);
    color: #60a5fa;
    border: 1px solid rgba(59, 130, 246, 0.24);
}

.research-status-badge.completed {
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid rgba(45, 212, 191, 0.28);
}

.research-item h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}

.research-authors {
    font-size: 0.88rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 12px;
}

.research-authors strong { color: var(--accent); font-style: normal; }

.research-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.research-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.research-pills span {
    background: var(--accent-dim);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: 1px solid rgba(45, 212, 191, 0.2);
}

/* ===========================
   EXPERIENCE TIMELINE
   =========================== */
.exp-timeline {
    position: relative;
}

.exp-row {
    display: grid;
    grid-template-columns: 160px 40px 1fr;
    gap: 0;
    min-height: 120px;
}

.exp-period {
    text-align: right;
    padding-right: 20px;
    padding-top: 4px;
}

.exp-year {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

.exp-range {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.exp-line {
    position: relative;
    display: flex;
    justify-content: center;
}

.exp-line::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--border);
}

.exp-row:last-child .exp-line::before { bottom: auto; height: 20px; }

.exp-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--text-muted);
    position: relative;
    z-index: 1;
    margin-top: 6px;
    transition: all var(--transition);
}

.exp-dot.active-dot {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.exp-content {
    padding: 0 0 48px 20px;
}

.exp-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.exp-org {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-bottom: 8px;
}

.exp-note {
    color: var(--text-muted);
    font-size: 0.88rem;
}

.exp-content ul {
    list-style: none;
    margin-top: 10px;
}

.exp-content li {
    position: relative;
    padding-left: 18px;
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin-bottom: 6px;
}

.exp-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.6;
}

/* ===========================
   ACHIEVEMENTS
   =========================== */
.achievements-list {
    border-top: 1px solid var(--border);
}

.ach-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 32px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
    transition: all var(--transition);
    align-items: start;
}

.ach-item:hover {
    padding-left: 12px;
    background: var(--accent-dim);
    margin: 0 -12px;
    padding-right: 12px;
    border-radius: var(--radius-xs);
}

.ach-year {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent);
    padding-top: 2px;
}

.ach-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.ach-info p {
    font-size: 0.88rem;
    color: var(--text-muted);
}

/* ===========================
   CERTIFICATIONS
   =========================== */
.certs-grid {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
    color: var(--text);
    transition: all var(--transition);
}

.cert-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateX(6px);
    color: var(--text);
}

.cert-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--accent-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent);
    flex-shrink: 0;
}

.cert-item div:nth-child(2) { flex: 1; }

.cert-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 4px; }
.cert-item p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 2px; }

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

.cert-arrow {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: all var(--transition);
}

.cert-item:hover .cert-arrow {
    color: var(--accent);
    transform: translate(4px, -4px);
}

/* ===========================
   CONTACT
   =========================== */
.contact {
    padding: 140px 0;
}

.contact-content {
    max-width: 640px;
}

.contact-headline {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin: 20px 0 24px;
    letter-spacing: -0.02em;
}

.contact-headline em {
    font-style: italic;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-sub {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-email {
    display: inline-block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 4px;
    margin-bottom: 40px;
    transition: all var(--transition);
}

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

.contact-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.contact-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border: 1px solid var(--border);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all var(--transition);
}

.contact-links a:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

.contact-links a i { font-size: 1rem; }

/* ===========================
   FOOTER
   =========================== */
.footer {
    border-top: 1px solid var(--border);
    padding: 28px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-location {
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-location i { color: var(--accent); font-size: 0.75rem; }

/* ===========================
   LIGHTBOX
   =========================== */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.lightbox.active { opacity: 1; visibility: visible; }

.lightbox-close {
    position: absolute;
    top: 24px;
    right: 28px;
    background: none;
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.lightbox-close:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: rotate(90deg);
}

.lightbox-content { max-width: 90vw; max-height: 85vh; }
.lightbox-content video,
.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius);
}

/* ===========================
   EDUCATION
   =========================== */
.education-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 20px;
}

.edu-card {
    background: var(--bg-card);
    padding: 40px 32px;
    transition: all var(--transition);
}

.edu-card:hover {
    background: var(--bg-card-hover);
}

.edu-icon {
    font-size: 1.4rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.edu-period {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    display: block;
    margin-bottom: 12px;
}

.edu-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}

.edu-inst {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.edu-detail {
    color: var(--text-muted);
    font-size: 0.82rem;
    margin-bottom: 16px;
}

.edu-highlight {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.edu-gpa {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-dim);
    padding: 4px 12px;
    border-radius: var(--radius-xs);
}

.edu-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: #60a5fa;
    background: rgba(59, 130, 246, 0.12);
    padding: 4px 10px;
    border-radius: var(--radius-xs);
    letter-spacing: 0.08em;
}

.edu-note {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* ===========================
   ACTIVITIES
   =========================== */
.activities-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.activity-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 40px;
    transition: all var(--transition);
}

.activity-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}

.activity-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    gap: 20px;
}

.activity-role h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.activity-org {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.activity-period {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.04em;
    white-space: nowrap;
    margin-top: 4px;
}

.activity-highlights {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.activity-highlights li {
    color: var(--text-secondary);
    font-size: 0.92rem;
    padding-left: 20px;
    position: relative;
    line-height: 1.6;
}

.activity-highlights li::before {
    content: '\2022';
    color: var(--accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.activity-highlights strong {
    color: var(--text);
}

/* ===========================
   REVEAL ANIMATIONS
   =========================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger */
.expertise-grid .expertise-card { opacity: 0; transform: translateY(20px); transition: all 0.6s ease; }
.expertise-grid.visible .expertise-card { opacity: 1; transform: translateY(0); }
.expertise-grid.visible .expertise-card:nth-child(1) { transition-delay: 0.1s; }
.expertise-grid.visible .expertise-card:nth-child(2) { transition-delay: 0.2s; }
.expertise-grid.visible .expertise-card:nth-child(3) { transition-delay: 0.3s; }

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 900px) {
    .case-card,
    .case-card--reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }
    
    .case-card--reverse > * { direction: ltr; }
    
    .case-media { min-height: 260px; }
    
    .case-info { padding: 32px 28px; }
    
    .about-intro {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .stats-row { gap: 30px; flex-wrap: wrap; }
    
    .skills-strip { grid-template-columns: 1fr 1fr; gap: 28px; }
    
    .education-grid { grid-template-columns: 1fr; }
    
    .activity-card { padding: 28px 24px; }
    .activity-header { flex-direction: column; gap: 8px; }
    
    .exp-row { grid-template-columns: 100px 30px 1fr; }
    
    .hero-bottom {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: rgba(4, 15, 26, 0.95);
        backdrop-filter: blur(24px);
        flex-direction: column;
        align-items: center;
        padding: 28px 0 36px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        transition: transform 0.4s ease;
    }
    
    .nav-links.open { transform: translateY(0); }
    .nav-toggle { display: flex; }
    
    .nav-toggle.active span:first-child {
        transform: rotate(45deg) translate(4px, 4px);
    }
    
    .nav-toggle.active span:last-child {
        transform: rotate(-45deg) translate(4px, -4px);
    }
    
    .hero { padding-bottom: 50px; }
    
    .hero-container { padding-top: 120px; }
    
    .section { padding: 80px 0; }
    
    .expertise-grid { grid-template-columns: 1fr; }
    .education-grid { grid-template-columns: 1fr; }
    
    .stat-num { font-size: 2.4rem; }
    
    .skills-strip { grid-template-columns: 1fr; }
    
    .exp-row { grid-template-columns: 80px 30px 1fr; }
    .exp-year { font-size: 1.1rem; }
    
    .ach-item { grid-template-columns: 60px 1fr; gap: 16px; }
    
    .cursor-glow { display: none; }
}

@media (max-width: 480px) {
    .hero-headline { font-size: 2rem; }
    .section-heading { font-size: 1.8rem; }
    .big-text { font-size: 1.2rem; }
    .contact-headline { font-size: 2.4rem; }
    .contact-email { font-size: 1.1rem; }
    .stats-row { flex-direction: column; gap: 24px; }
    .stat-divider { width: 60px; height: 1px; }
}