/* ============================================================
   KE WANG — FX ARTIST PORTFOLIO
   style.css
   ============================================================ */

/* ── Variables ───────────────────────────────────────────── */
:root {
    --bg:          #13111c;
    --bg-2:        #1a1827;
    --bg-3:        #221f32;
    --text:        #f5f3ee;
    --text-dim:    #9492aa;
    --text-muted:  #5a5875;
    --accent:      #5b9cf6;
    --border:      rgba(255,255,255,0.07);
    --radius:      4px;
    --max-w:       1280px;
    --nav-h:       70px;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; color: inherit; }

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

/* ── Container ───────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 48px;
}

/* ── Section common ──────────────────────────────────────── */
section { padding: 120px 0; }

.section-eyebrow {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 64px;
}
.section-header h2 { font-size: clamp(36px, 4vw, 52px); }
.section-count {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 88px;
    font-weight: 700;
    color: var(--border);
    line-height: 1;
    user-select: none;
}
.section-intro {
    font-size: 17px;
    color: var(--text-dim);
    max-width: 580px;
    margin-bottom: 56px;
    margin-top: -44px;
    line-height: 1.75;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--text);
    color: var(--bg);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius);
    transition: opacity 0.2s, transform 0.2s;
}
.btn-primary:hover { opacity: 0.85; transform: translateY(-1px); }

.btn-outline {
    display: inline-flex;
    align-items: center;
    padding: 13px 27px;
    border: 1px solid var(--border);
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius);
    transition: border-color 0.25s, background 0.25s;
}
.btn-outline:hover {
    border-color: rgba(255,255,255,0.28);
    background: rgba(255,255,255,0.04);
}
.btn-sm  { padding: 9px 18px;  font-size: 13px; }
.btn-lg  { padding: 16px 36px; font-size: 15px; }

/* ══════════════════════════════════════════════════════════
   NAV
   ══════════════════════════════════════════════════════════ */
#nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    height: var(--nav-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    transition: background 0.35s, border-color 0.35s;
}
#nav.scrolled {
    background: rgba(19,17,28,0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}
.nav-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--text);
}
.nav-links {
    display: flex;
    gap: 36px;
}
.nav-links a {
    font-size: 13px;
    color: var(--text-dim);
    transition: color 0.2s;
    font-weight: 400;
    letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--text); }

.nav-cta {
    display: inline-flex;
    padding: 9px 22px;
    background: var(--text);
    color: var(--bg);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius);
    transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.82; }

.nav-burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}
.nav-burger span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--text);
    transition: transform 0.3s, opacity 0.3s;
    transform-origin: center;
}
.nav-burger.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile Menu ─────────────────────────────────────────── */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 48px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: center;
}
.mobile-link {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 40px;
    font-weight: 600;
    color: var(--text-dim);
    display: block;
    padding: 8px 20px;
    transition: color 0.2s;
}
.mobile-link:hover { color: var(--text); }
.mobile-cta {
    display: inline-flex;
    padding: 14px 44px;
    background: var(--text);
    color: var(--bg);
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius);
}

/* ══════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════ */
#hero {
    position: relative;
    height: 100vh;
    min-height: 680px;
    display: flex;
    align-items: center;
    padding: 0 48px;
    overflow: hidden;
}
.hero-bg-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 60% at 15% 50%, rgba(91,156,246,0.13) 0%, transparent 65%),
        radial-gradient(ellipse 50% 40% at 85% 65%, rgba(139,115,240,0.09) 0%, transparent 65%),
        var(--bg);
    z-index: 0;
}
.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--max-w);
    width: 100%;
    margin: 0 auto;
}
.hero-eyebrow {
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 28px;
}
.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(88px, 15vw, 188px);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 0.88;
    color: var(--text);
    margin-bottom: 32px;
}
.hero-subtitle {
    font-size: 15px;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    margin-bottom: 52px;
    font-weight: 400;
}
.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.hero-tags {
    position: absolute;
    bottom: 52px;
    left: 48px;
    z-index: 1;
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}
.hero-tags span {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.hero-scroll-hint {
    position: absolute;
    bottom: 52px;
    right: 48px;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 9px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.hero-scroll-hint svg { animation: scrollBounce 2.2s ease-in-out infinite; }
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    55%       { transform: translateY(7px); }
}

/* ══════════════════════════════════════════════════════════
   MODAL
   ══════════════════════════════════════════════════════════ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.modal.open {
    opacity: 1;
    pointer-events: all;
}
.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.88);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.modal-box {
    position: relative;
    z-index: 1;
    width: 92%;
    max-width: 980px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transform: scale(0.96);
    transition: transform 0.3s;
}
.modal.open .modal-box { transform: scale(1); }
.modal-close {
    position: absolute;
    top: 14px; right: 14px;
    z-index: 2;
    color: var(--text);
    opacity: 0.5;
    transition: opacity 0.2s;
    padding: 6px;
    border-radius: var(--radius);
}
.modal-close:hover { opacity: 1; }
.modal-video {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
}
.modal-video iframe,
.modal-video video {
    width: 100%;
    height: 100%;
    display: block;
}
#localVideo { display: none; background: #000; }

/* ══════════════════════════════════════════════════════════
   ABOUT
   ══════════════════════════════════════════════════════════ */
#about { background: var(--bg-2); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.45fr;
    gap: 88px;
    align-items: start;
}
.about-image-wrap {
    aspect-ratio: 4/5;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--bg-3);
}
.about-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    transition: transform 0.6s ease;
}
.about-image-wrap:hover img { transform: scale(1.03); }
.about-stats {
    display: flex;
    margin-top: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.stat-item {
    flex: 1;
    padding: 18px 12px;
    text-align: center;
    border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-num {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
}
.stat-label {
    display: block;
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    letter-spacing: 0.04em;
}
.about-text-col h2 {
    font-size: clamp(26px, 2.8vw, 38px);
    margin-bottom: 28px;
    line-height: 1.25;
}
.about-body {
    color: var(--text-dim);
    font-size: 15px;
    line-height: 1.85;
    margin-bottom: 18px;
}
.about-body em { color: var(--text); font-style: normal; }
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 28px 0 32px;
}
.skill-tag {
    padding: 5px 14px;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 12px;
    color: var(--text-dim);
    transition: border-color 0.2s, color 0.2s;
}
.skill-tag:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text);
}

/* ══════════════════════════════════════════════════════════
   WORKS
   ══════════════════════════════════════════════════════════ */
.works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.work-card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s;
}
.work-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.14);
}
.work-card a { display: block; }
.work-thumb {
    position: relative;
    aspect-ratio: 16/9;
    background: var(--grad);
    overflow: hidden;
}
.work-badge {
    position: absolute;
    top: 12px; left: 12px;
    padding: 4px 10px;
    background: rgba(0,0,0,0.48);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 100px;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: rgba(255,255,255,0.85);
}
.work-meta {
    display: flex;
    justify-content: space-between;
    padding: 16px 16px 6px;
}
.work-studio {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.work-year { font-size: 11px; color: var(--text-muted); }
.work-title {
    padding: 0 16px 8px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.3;
}
.work-desc {
    padding: 0 16px 20px;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ── Work card video thumbnail ───────────────────────────── */
.work-thumb-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.4s ease;
}

/* ── Work card play overlay ──────────────────────────────── */
.work-play-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s;
    background: rgba(0,0,0,0.32);
    z-index: 1;
}
.work-badge { z-index: 2; }
.work-card:hover .work-play-overlay { opacity: 1; }
.work-card[data-video] { cursor: pointer; }

/* ══════════════════════════════════════════════════════════
   WORKS FILTER BAR
   ══════════════════════════════════════════════════════════ */
.works-filter {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}
.filter-btn {
    padding: 7px 18px;
    border: 1px solid var(--border);
    border-radius: 100px;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-dim);
    background: transparent;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
    letter-spacing: 0.03em;
}
.filter-btn:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text);
}
.filter-btn.active {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(91,156,246,0.08);
}
.work-card.hidden { display: none; }

/* ══════════════════════════════════════════════════════════
   TUTORIALS
   ══════════════════════════════════════════════════════════ */
#tutorials { background: var(--bg-2); }

.view-all-link {
    font-size: 14px;
    color: var(--accent);
    transition: opacity 0.2s;
}
.view-all-link:hover { opacity: 0.7; }

.tutorials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.tut-card {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s;
}
.tut-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.14);
}
.tut-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}
.tut-thumb-bg {
    width: 100%;
    height: 100%;
    background: var(--tut-grad);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s;
}
.tut-card:hover .tut-thumb-bg { opacity: 0.8; }
.tut-card:hover .work-play-overlay { opacity: 1 !important; }
.play-btn {
    background: none;
    border: none;
    padding: 0;
    transition: transform 0.25s;
}
.tut-card:hover .play-btn { transform: scale(1.1); }
.tut-duration {
    position: absolute;
    bottom: 10px; right: 10px;
    padding: 3px 10px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    font-size: 10px;
    color: rgba(255,255,255,0.8);
    border-radius: 100px;
    letter-spacing: 0.03em;
}
.tut-info { padding: 20px; }
.tut-cat {
    display: block;
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
}
.tut-info h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
    line-height: 1.3;
}
.tut-info p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ══════════════════════════════════════════════════════════
   RESUME
   ══════════════════════════════════════════════════════════ */
.timeline {
    position: relative;
    padding-left: 28px;
    border-left: 1px solid var(--border);
    margin-bottom: 88px;
}
.timeline-item {
    position: relative;
    padding: 0 0 52px 40px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
    position: absolute;
    left: -5px;
    top: 7px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--accent);
    border: 2px solid var(--bg);
    box-shadow: 0 0 0 4px rgba(91,156,246,0.12);
}
.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}
.timeline-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
}
.tl-date {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
    font-family: 'Inter', sans-serif;
}
.tl-company {
    font-size: 13px;
    color: var(--accent);
    margin-bottom: 10px;
    font-weight: 400;
}
.tl-desc {
    font-size: 14px;
    color: var(--text-dim);
    line-height: 1.75;
}
.tl-desc em { color: var(--text); font-style: italic; }

.education-block { }
.education-block h3 {
    font-size: 22px;
    margin-bottom: 28px;
}
.edu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.edu-item {
    padding: 28px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.edu-year {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 10px;
    letter-spacing: 0.04em;
}
.edu-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
}
.edu-item p { font-size: 13px; color: var(--text-dim); }

/* ══════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════ */
#contact {
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    padding: 100px 0 60px;
}
.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 72px;
    padding-bottom: 64px;
    border-bottom: 1px solid var(--border);
}
.footer-cta h2 {
    font-size: clamp(36px, 4.5vw, 60px);
    margin-bottom: 20px;
    line-height: 1.05;
}
.footer-email {
    display: block;
    font-size: 15px;
    color: var(--text-dim);
    margin-bottom: 36px;
    transition: color 0.2s;
}
.footer-email:hover { color: var(--text); }
.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-content: start;
    padding-top: 8px;
}
.footer-col h4 {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.footer-col a {
    display: block;
    font-size: 15px;
    color: var(--text-dim);
    margin-bottom: 12px;
    transition: color 0.2s;
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

/* ══════════════════════════════════════════════════════════
   REVEAL ANIMATIONS
   ══════════════════════════════════════════════════════════ */
.reveal, .reveal-up, .reveal-left, .reveal-right {
    opacity: 0;
    transition: opacity 0.7s ease, transform 0.7s ease;
    will-change: opacity, transform;
}
.reveal       { transform: translateY(20px); }
.reveal-up    { transform: translateY(44px); }
.reveal-left  { transform: translateX(-44px); }
.reveal-right { transform: translateX(44px); }

.reveal.visible,
.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: none;
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE — 1024px
   ══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .works-grid,
    .tutorials-grid { grid-template-columns: repeat(2, 1fr); }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .about-image-col { max-width: 420px; }
    .about-image-wrap { aspect-ratio: 3/4; }

    .footer-top { grid-template-columns: 1fr; gap: 56px; }
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE — 768px (mobile)
   ══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    :root { --nav-h: 60px; }

    .container { padding: 0 20px; }
    section { padding: 80px 0; }

    /* Nav */
    .nav-links, .nav-cta { display: none; }
    .nav-burger { display: flex; }
    #nav { padding: 0 20px; }

    /* Hero */
    #hero { padding: 0 20px; }
    .hero-tags { left: 20px; bottom: 44px; gap: 16px; }
    .hero-scroll-hint { display: none; }
    .hero-actions { flex-direction: column; align-items: flex-start; }

    /* Grids */
    .works-grid,
    .tutorials-grid { grid-template-columns: 1fr; }

    /* Section header */
    .section-header { flex-direction: column; gap: 12px; align-items: flex-start; }
    .section-count { display: none; }

    /* Resume */
    .timeline { padding-left: 16px; }
    .timeline-item { padding-left: 24px; }
    .timeline-header { flex-direction: column; gap: 4px; }
    .edu-grid { grid-template-columns: 1fr; }

    /* Footer */
    .footer-top { gap: 48px; }
    .footer-bottom { flex-direction: column; gap: 8px; }
}

@media (max-width: 480px) {
    .about-stats { flex-direction: column; }
    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    .stat-item:last-child { border-bottom: none; }
    .footer-links { grid-template-columns: 1fr 1fr; }
}