/* ===== reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Pretendard', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0a0a0c;
  color: #f4f4f5;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ===== background layers ===== */
.bg-grid {
  position: fixed; inset: 0; z-index: -3;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.bg-gradient {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(circle at 15% 10%, rgba(168, 85, 247, 0.18), transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(56, 189, 248, 0.15), transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(244, 114, 182, 0.12), transparent 50%);
}
.bg-noise {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===== hero load animation ===== */
@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
.nav,
.hero-eyebrow,
.hero-title .line,
.hero-sub,
.hero-cta,
.hero-stats {
  opacity: 0;
  animation: heroFadeUp .9s cubic-bezier(.2,.7,.3,1) forwards;
}
.nav                            { animation-delay: 0.05s; }
.hero-eyebrow                   { animation-delay: 0.20s; }
.hero-title .line:nth-child(1)  { animation-delay: 0.32s; }
.hero-title .line:nth-child(2)  { animation-delay: 0.46s; }
.hero-sub                       { animation-delay: 0.62s; }
.hero-cta                       { animation-delay: 0.76s; }
.hero-stats                     { animation-delay: 0.90s; }
@media (prefers-reduced-motion: reduce) {
  .nav, .hero-eyebrow, .hero-title .line, .hero-sub, .hero-cta, .hero-stats {
    opacity: 1; transform: none; animation: none;
  }
}

/* ===== nav ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 40px;
  backdrop-filter: blur(20px) saturate(140%);
  background: rgba(10,10,12,0.55);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; letter-spacing: -0.02em; }
.logo-mark { color: #a855f7; font-size: 14px; animation: spin 8s linear infinite; display: inline-block; }
.logo-mark.big { font-size: 28px; }
@keyframes spin { to { transform: rotate(360deg); } }
.nav-right { display: flex; align-items: center; gap: 28px; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 14px; color: #a1a1aa; transition: color .2s; }
.nav-links a:hover { color: #fff; }

/* ===== language switcher ===== */
.lang-switcher { position: relative; }
.lang-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: #d4d4d8;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-family: 'JetBrains Mono', monospace;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
}
.lang-btn:hover, .lang-btn[aria-expanded="true"] {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.18);
  color: #fff;
}
.lang-icon { display: inline-flex; align-items: center; opacity: 0.85; }
.lang-caret { font-size: 9px; opacity: 0.7; transition: transform .2s; }
.lang-btn[aria-expanded="true"] .lang-caret { transform: rotate(180deg); }

.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0;
  list-style: none;
  min-width: 200px;
  padding: 8px;
  background: rgba(15, 15, 18, 0.92);
  backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.5), 0 2px 8px rgba(0,0,0,0.3);
  z-index: 60;
  opacity: 0; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease;
  pointer-events: none;
}
.lang-switcher.open .lang-menu { opacity: 1; transform: translateY(0); pointer-events: auto; }
.lang-menu[hidden] { display: none; }
.lang-option {
  display: flex; align-items: center; gap: 18px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  background: transparent;
  color: #d4d4d8;
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background .15s;
}
.lang-option:hover { background: rgba(255,255,255,0.06); }
.lang-option .lang-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #f59e0b;
  min-width: 24px;
}
.lang-option .lang-name { color: #f4f4f5; }
.lang-option[aria-current="true"] { background: rgba(245, 158, 11, 0.08); }
.lang-option[aria-current="true"] .lang-name { color: #fff; }

/* ===== hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 140px 40px 80px;
  max-width: 1400px; margin: 0 auto;
}
.hero-bg {
  position: absolute;
  inset: -1px 0 0 0;
  z-index: -1;
  overflow: hidden;
  /* extend beyond hero edges to span full viewport width */
  left: 50%; right: 50%;
  margin-left: -50vw; margin-right: -50vw;
  width: 100vw;
  pointer-events: none;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  filter: grayscale(25%) brightness(0.48) contrast(1.05) saturate(0.85) blur(2px);
  /* expand slightly so blur edges don't show */
  transform: scale(1.03);
}
.hero-bg-vignette {
  position: absolute; inset: 0;
  background:
    /* stronger radial vignette */
    radial-gradient(ellipse 70% 65% at 50% 45%, transparent 0%, rgba(10,10,12,0.55) 55%, rgba(10,10,12,0.9) 85%, #0a0a0c 100%),
    /* bottom fade so works section blends in */
    linear-gradient(180deg, transparent 0%, transparent 50%, rgba(10,10,12,0.6) 75%, rgba(10,10,12,0.95) 90%, #0a0a0c 100%),
    /* brand color tint */
    linear-gradient(135deg, rgba(168,85,247,0.14) 0%, transparent 45%, rgba(56,189,248,0.08) 100%);
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  font-size: 13px; color: #d4d4d8;
  width: fit-content;
  margin-bottom: 32px;
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 12px #4ade80;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.hero-title {
  font-size: clamp(48px, 9vw, 144px);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.045em;
  margin-bottom: 36px;
}
.line { display: block; }
.gradient {
  background: linear-gradient(135deg, #a855f7 0%, #ec4899 40%, #38bdf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  background-size: 200% 200%;
  animation: gradient-shift 6s ease infinite;
}
@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.hero-sub {
  font-size: clamp(16px, 1.6vw, 20px);
  color: #a1a1aa;
  max-width: 580px;
  margin-bottom: 48px;
  line-height: 1.6;
}
.hero-cta { display: flex; gap: 14px; margin-bottom: 80px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 28px; border-radius: 999px;
  font-size: 15px; font-weight: 600;
  transition: all .25s ease;
}
.btn-primary {
  background: #fff; color: #0a0a0c;
}
.btn-primary:hover {
  background: #f4f4f5;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255,255,255,0.15);
}
.btn-ghost {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: #fff;
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
}
.arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

.hero-stats {
  display: flex; gap: 64px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 32px;
}
.stat-num {
  font-size: 36px; font-weight: 900;
  letter-spacing: -0.04em;
  font-family: 'JetBrains Mono', monospace;
}
.stat-label {
  font-size: 12px; color: #71717a;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 4px;
}

/* ===== ticker ===== */
.ticker {
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.08);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 28px 0;
  background: rgba(255,255,255,0.015);
}
.ticker-track {
  display: flex; gap: 48px;
  white-space: nowrap;
  animation: ticker 40s linear infinite;
  font-size: 22px; font-weight: 700;
  letter-spacing: -0.01em;
}
.ticker-track span:nth-child(even) {
  color: #a855f7;
}
@keyframes ticker {
  to { transform: translateX(-50%); }
}

/* ===== sections ===== */
.section-header {
  max-width: 1400px; margin: 0 auto;
  padding: 0 40px;
  margin-bottom: 60px;
}
.section-eyebrow {
  font-size: 12px;
  color: #a855f7;
  letter-spacing: 0.2em;
  font-weight: 700;
  margin-bottom: 16px;
  font-family: 'JetBrains Mono', monospace;
}
.section-title {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
}
.section-sub {
  color: #a1a1aa;
  margin-top: 16px;
  font-size: 18px;
}

/* ===== filter toggle ===== */
.filter-toggle {
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: 24px;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: #d4d4d8;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-family: 'Pretendard', 'Inter', sans-serif;
  cursor: pointer;
  transition: background .25s ease, border-color .25s ease, color .25s ease;
}
.filter-toggle:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
}
.filter-toggle .filter-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #71717a;
  transition: background .25s ease, box-shadow .25s ease;
}
.filter-toggle[aria-pressed="true"] {
  background: rgba(74, 222, 128, 0.12);
  border-color: rgba(74, 222, 128, 0.35);
  color: #4ade80;
}
.filter-toggle[aria-pressed="true"] .filter-dot {
  background: #4ade80;
  box-shadow: 0 0 12px #4ade80;
}

/* ===== works grid ===== */
.works { padding: 120px 0; }
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}
.card {
  position: relative;
  padding: 32px;
  border-radius: 24px;
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(255,255,255,0.06);
  transition: all .35s cubic-bezier(.2,.7,.3,1);
  overflow: hidden;
  isolation: isolate;
}
.card::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(168,85,247,0.18), transparent 50%);
  opacity: 0; transition: opacity .3s;
  z-index: -1;
}
.card:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.14);
}
.card:hover::before { opacity: 1; }

/* filter ON: dim non-playable cards (overrides reveal-on-scroll inline opacity) */
.grid.filter-playable .card:not([data-playable]) {
  opacity: 0.18 !important;
  filter: blur(2.5px) grayscale(60%);
  pointer-events: none;
  user-select: none;
}
.grid.filter-playable .card:not([data-playable])::before { opacity: 0 !important; }
.card-lg { grid-column: span 2; min-height: 320px; }
.card-emoji {
  font-size: 48px;
  margin-bottom: 24px;
  filter: drop-shadow(0 4px 18px rgba(168,85,247,0.3));
}
.card-lg .card-emoji { font-size: 72px; }
.card-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px;
}
.tag {
  display: inline-block;
  padding: 4px 10px; border-radius: 999px;
  font-size: 10px; font-weight: 700;
  letter-spacing: 0.12em;
  background: rgba(255,255,255,0.06);
  color: #d4d4d8;
  font-family: 'JetBrains Mono', monospace;
}
.tag-live {
  background: rgba(74, 222, 128, 0.12);
  color: #4ade80;
}
.card-year {
  font-size: 12px;
  color: #71717a;
  font-family: 'JetBrains Mono', monospace;
}
.card-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 6px;
}
.card-lg .card-title { font-size: 40px; }
.card-url {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: #71717a;
  margin-bottom: 14px;
  transition: color .25s ease;
}
.card:hover .card-url { color: #a855f7; }
.card-desc {
  color: #a1a1aa;
  font-size: 15px;
  line-height: 1.55;
  margin-bottom: 24px;
}
.card-lg .card-desc { font-size: 17px; max-width: 480px; }
.card-stack {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.card-stack span {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  color: #a1a1aa;
  border: 1px solid rgba(255,255,255,0.06);
  font-family: 'JetBrains Mono', monospace;
}

.more-soon {
  text-align: center;
  margin-top: 60px;
  color: #71717a;
  font-size: 18px;
  font-weight: 500;
}
.more-soon span {
  color: #a855f7;
  font-size: 24px;
  margin-right: 8px;
}

/* ===== about ===== */
.about {
  padding: 120px 40px;
  max-width: 1400px;
  margin: 0 auto;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.about-right p {
  font-size: 18px;
  color: #d4d4d8;
  line-height: 1.75;
  margin-bottom: 24px;
}
.about-right em {
  color: #a855f7;
  font-style: normal;
  font-weight: 600;
}

/* ===== contact ===== */
.contact {
  padding: 160px 40px;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.contact-title {
  font-size: clamp(48px, 8vw, 112px);
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1;
  margin-bottom: 24px;
}
.contact-sub {
  color: #a1a1aa;
  font-size: 18px;
  margin-bottom: 48px;
}
.contact-mail {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 700;
  padding: 18px 36px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all .25s;
  font-family: 'JetBrains Mono', monospace;
}
.contact-mail:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
}
.contact-mail:hover .arrow { transform: translate(4px, -4px); }
.contact-mail-placeholder {
  color: #71717a;
  cursor: default;
  pointer-events: none;
  border-style: dashed;
}
.contact-socials {
  margin-top: 36px;
  color: #71717a;
  font-size: 15px;
}
.contact-socials a {
  color: #d4d4d8;
  transition: color .2s;
}
.contact-socials a:hover { color: #a855f7; }
.contact-socials span { margin: 0 12px; }

/* ===== footer ===== */
.footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 14px;
  color: #71717a;
}
.footer-left {
  display: flex; align-items: center; gap: 14px;
}
.footer-brand {
  color: #f4f4f5;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.footer-tag {
  font-size: 12px;
  margin-top: 2px;
}

/* ===== responsive ===== */
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .card-lg { grid-column: span 1; min-height: auto; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .nav { padding: 16px 24px; }
  .nav-links { gap: 20px; }
  .hero { padding: 100px 24px 60px; }
  .hero-stats { gap: 32px; }
  .stat-num { font-size: 28px; }
  .section-header, .works, .about, .contact { padding-left: 24px; padding-right: 24px; }
  .footer { padding: 32px 24px; flex-direction: column; gap: 16px; text-align: center; }
}