/* ============================================================
   PEI-SHAN · PORTFOLIO
   Dark-first · Netflix-red · Gloock + DM Sans
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Gloock:ital@0;1&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---- TOKENS ---- */
:root {
  --accent:           #E50914;
  --accent-hover:     #F40612;
  --accent-muted:     #831010;
  --accent-pale:      #2D0A0A;

  --bg-page:          #141414;
  --bg-surface:       #1A1A1A;
  --bg-elevated:      #222222;

  --text-primary:     #FFFFFF;
  --text-secondary:   #CCCCCC;
  --text-tertiary:    #777777;

  --border-subtle:    #222222;
  --border-default:   #333333;
  --border-strong:    #555555;

  --font-display:     'Gloock', Georgia, serif;
  --font-body:        'DM Sans', system-ui, sans-serif;
  --font-mono:        'JetBrains Mono', monospace;

  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-pill: 9999px;

  --ease:        cubic-bezier(0.16, 1, 0.3, 1);
  --fast:        120ms;
  --base:        200ms;
  --slow:        350ms;

  --shadow-sm:   0 1px 3px rgba(0,0,0,.4);
  --shadow-md:   0 4px 12px rgba(0,0,0,.5);
  --shadow-lg:   0 8px 32px rgba(0,0,0,.6);
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-page);
  color: var(--text-primary);
  font-weight: 300;
  line-height: 1.7;
}
img, video { display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; }

/* ---- LAYOUT ---- */
.container {
  max-width: 1512px;
  margin: 0 auto;
  padding: 32px 32px 0;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: var(--bg-surface);
  border: 0.5px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: 64px;
  gap: 16px;
  position: sticky;
  top: 16px;
  z-index: 200;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.nav-mark {
  width: 22px;
  height: 22px;
  filter: brightness(0) invert(1);
}

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

.nav-links {
  display: flex;
  gap: 24px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-tertiary);
  transition: color var(--fast);
}

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

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 500;
  border: none;
  border-radius: var(--radius-pill);
  transition: all var(--base) var(--ease);
  font-size: 13px;
  padding: 9px 20px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 0.5px solid var(--border-default);
  padding: 8px 20px;
}
.btn-ghost:hover {
  background: var(--bg-elevated);
  border-color: var(--border-strong);
}

.btn-sm { font-size: 11px; padding: 6px 14px; }
.btn-lg { font-size: 15px; padding: 12px 24px; }

/* ============================================================
   BADGE
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 0.5px solid var(--border-default);
  border-radius: var(--radius-pill);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.badge-dot-green { background: #22c55e; }
.badge-dot-red   { background: var(--accent); }

.badge-text {
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* ============================================================
   HERO
   ============================================================ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero {
  padding: 40px 0 72px;
}

.hero .badge,
.hero-title,
.hero-sub,
.hero-ctas {
  opacity: 0;
  animation: fadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero .badge       { animation-delay: 0.1s; }
.hero-title        { animation-delay: 0.25s; }
.hero-sub          { animation-delay: 0.4s; }
.hero-ctas         { animation-delay: 0.55s; }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 56px);
  font-style: italic;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin: 24px 0 20px;
}

.hero-sub {
  font-size: 17px;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding: 56px 0;
  border-top: 0.5px solid var(--border-subtle);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* ============================================================
   WORK GRID
   ============================================================ */
.work-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.work-card {
  position: relative;
  aspect-ratio: 16 / 7;
  background: var(--bg-surface);
  border: 0.5px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: border-color var(--base) var(--ease);
}

.work-card:hover { border-color: var(--border-strong); }

.work-card.featured {
  border: 1.5px solid var(--accent-muted);
  background: var(--accent-pale);
}

.work-card img,
.work-card video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.work-overlay {
  position: absolute;
  inset: 0;
  padding: 28px 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(to bottom, rgba(0,0,0,.15) 0%, transparent 35%, rgba(0,0,0,.55) 100%);
}

.work-top { display: flex; align-items: center; }

.work-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: rgba(255,255,255,.9);
}

.work-mark-dot { color: var(--accent); font-size: 9px; }

.work-bottom { max-width: 55%; }

.work-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 400;
  line-height: 1.1;
  color: #fff;
  margin-bottom: 10px;
}

.work-desc {
  font-size: 14px;
  font-weight: 300;
  color: rgba(255,255,255,.75);
  line-height: 1.55;
  margin-bottom: 18px;
}

.work-cta {
  background: rgba(255,255,255,.15);
  color: #fff;
  border: 0.5px solid rgba(255,255,255,.3);
  border-radius: var(--radius-pill);
  padding: 7px 18px;
  font-size: 12px;
  font-weight: 500;
  font-family: inherit;
  transition: background var(--base);
}
.work-cta:hover { background: rgba(255,255,255,.25); }

/* ============================================================
   STATS
   ============================================================ */
.stat-row {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

.stat {
  flex: 1;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  text-align: center;
}

.stat-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 32px;
  line-height: 1;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.stat-num.accent { color: var(--accent); }

.stat-lbl {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
}

.about-copy p {
  font-size: 17px;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.about-skills .eyebrow {
  display: block;
  margin-bottom: 16px;
}

.skill-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 0.5px solid var(--border-subtle);
}
.skill-row:last-child { border: none; }

.skill-name {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
}

.dot-row { display: flex; gap: 5px; }

.dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--border-default);
}
.dot.on { background: var(--accent); }


/* ============================================================
   EXPERIENCE LIST
   ============================================================ */
.exp-list { display: flex; flex-direction: column; }

.exp-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 0.5px solid var(--border-subtle);
  transition: padding var(--base) var(--ease);
  cursor: pointer;
}

.exp-row:hover { padding-left: 8px; }
.exp-row:last-child { border-bottom: none; }

.exp-row h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  color: var(--text-primary);
}

.exp-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  white-space: nowrap;
  margin-left: 24px;
}

/* ============================================================
   CONTACT
   ============================================================ */
.page-title {
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1.05;
  font-weight: 400;
  margin: 12px 0 16px;
}

.page-sub {
  font-size: 15px;
  font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 32px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 520px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-form label span {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  background: var(--bg-surface);
  border: 0.5px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  font-weight: 300;
  outline: none;
  transition: border-color var(--base);
}

.contact-form input:focus,
.contact-form textarea:focus { border-color: var(--border-strong); }

.contact-form textarea { resize: vertical; }
.contact-form button { align-self: flex-start; margin-top: 8px; }

.contact-confirm { padding: 24px 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: 0 32px;
  max-width: 1512px;
  margin: 80px auto 0;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 40px;
  border-top: 0.5px solid var(--border-subtle);
}

.footer-sig {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-tertiary);
}

.footer-links { display: flex; gap: 24px; }

.footer-link {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-tertiary);
  transition: color var(--fast);
}
.footer-link:hover { color: var(--text-primary); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 720px) {
  .container { padding: 24px 20px 0; }
  .nav { margin-bottom: 48px; }
  .nav-links { gap: 16px; }
  .hero-title { font-size: 36px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .stat-row { flex-wrap: wrap; }
  .stat { min-width: calc(50% - 6px); }
  .work-bottom { max-width: 80%; }
  .site-footer { padding: 0 20px; }
}

@media (max-width: 480px) {
  .nav-links { display: none; }
  .work-title { font-size: 22px; }
  .work-bottom { max-width: 90%; }
}