:root {
  color-scheme: dark;
  --bg: #08111f;
  --panel: rgba(12, 22, 37, 0.88);
  --panel-strong: rgba(11, 20, 33, 0.96);
  --line: rgba(205, 173, 108, 0.2);
  --line-strong: rgba(205, 173, 108, 0.36);
  --gold: #d1b06f;
  --text: #f4f6fb;
  --muted: rgba(233, 238, 246, 0.78);
  --muted-strong: rgba(233, 238, 246, 0.92);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 20%, rgba(197, 164, 99, 0.15), transparent 26%),
    radial-gradient(circle at 84% 12%, rgba(48, 108, 188, 0.22), transparent 24%),
    linear-gradient(180deg, #09111e 0%, #050910 100%);
  color: var(--text);
  font-family:
    "SF Pro Display",
    "Hiragino Sans",
    "Apple SD Gothic Neo",
    "Noto Sans JP",
    "Noto Sans KR",
    sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.page-shell {
  width: min(1240px, calc(100vw - 48px));
  margin: 0 auto;
  padding: 28px 0 96px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eyebrow,
.hero-kicker {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

.brand {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.lang-switch,
.demo-language-switch {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.lang-switch button,
.demo-language-switch button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.lang-switch button.active,
.demo-language-switch button.active {
  background: rgba(209, 176, 111, 0.16);
  color: var(--text);
}

.disclaimer-banner {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(232, 105, 105, 0.28);
  background: rgba(120, 26, 26, 0.18);
  border-radius: var(--radius-sm);
  color: var(--muted-strong);
  line-height: 1.6;
  box-shadow: var(--shadow);
}

.hero,
.registration,
.workflow,
.gallery,
.demo,
.downloads,
.compliance {
  margin-top: 28px;
  padding: 34px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(400px, 0.95fr);
  gap: 32px;
  align-items: center;
}

.hero h1 {
  margin: 10px 0 0;
  font-size: clamp(36px, 5.2vw, 60px);
  line-height: 1.01;
  letter-spacing: -0.045em;
}

.hero-subtitle {
  margin: 18px 0 0;
  max-width: 760px;
  font-size: clamp(17px, 1.9vw, 19px);
  line-height: 1.72;
  color: var(--muted);
}

.hero-cta,
.hero-pills {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-downloads {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  max-width: 640px;
}

.hero-download-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(180deg, rgba(209, 176, 111, 0.08), rgba(255, 255, 255, 0.02)),
    var(--panel-strong);
  transition:
    transform 120ms ease,
    border-color 120ms ease,
    background 120ms ease;
}

.hero-download-card:hover {
  transform: translateY(-1px);
  border-color: rgba(209, 176, 111, 0.48);
  background:
    linear-gradient(180deg, rgba(209, 176, 111, 0.14), rgba(255, 255, 255, 0.03)),
    var(--panel-strong);
}

.hero-download-label {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.25;
}

.hero-download-body {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
}

.primary-link {
  background: linear-gradient(180deg, #d6b46c 0%, #ab7c24 100%);
  color: #09111d;
}

.secondary-link {
  border: 1px solid var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.pill {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

.hero-card,
.demo-player-card {
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  background: #04070c;
}

.hero-card img,
.gallery-card img,
.demo-player-card video {
  display: block;
  width: 100%;
  height: auto;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(26px, 2.8vw, 36px);
  line-height: 1.1;
  letter-spacing: -0.035em;
}

.section-heading p {
  margin: 0;
  max-width: 820px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.72;
}

.check-grid,
.workflow-grid,
.download-grid,
.compliance-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.check-card,
.workflow-card,
.download-card {
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: var(--panel-strong);
}

.check-card h3,
.workflow-card h3,
.download-card h3,
.demo-meta h3 {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.check-card p,
.workflow-card p,
.download-card p,
.demo-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.72;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.gallery-card {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--panel-strong);
}

.gallery-card figcaption {
  padding: 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
}

.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) 320px;
  gap: 20px;
  align-items: start;
}

.demo-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.demo-meta {
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--panel-strong);
}

.download-card {
  min-height: 172px;
  transition: transform 120ms ease, border-color 120ms ease;
}

.download-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.site-footer {
  margin-top: 28px;
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(7, 13, 22, 0.86);
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.site-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-footer-note {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.policy-shell {
  width: min(1080px, calc(100vw - 48px));
}

.policy-locale[hidden] {
  display: none;
}

.policy-hero,
.policy-card,
.policy-notice {
  margin-top: 28px;
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.policy-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.policy-hero p,
.policy-card p,
.policy-card li,
.policy-note,
.policy-meta {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.78;
}

.policy-hero p {
  margin: 16px 0 0;
  max-width: 820px;
}

.policy-actions {
  margin-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.policy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-top: 20px;
}

.policy-notice {
  border-color: rgba(205, 173, 108, 0.3);
  background:
    linear-gradient(180deg, rgba(209, 176, 111, 0.08), rgba(255, 255, 255, 0.02)),
    var(--panel);
}

.policy-notice h2,
.policy-card h2 {
  margin: 0;
  font-size: clamp(24px, 2.8vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.policy-notice p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.72;
}

.policy-card + .policy-card {
  margin-top: 20px;
}

.policy-locale > .policy-card {
  margin-top: 0;
  padding: 18px 24px;
  border: none;
  border-radius: 0;
  box-shadow: none;
  backdrop-filter: none;
}

.policy-locale > .policy-hero + .policy-card {
  margin-top: 16px;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
}

.policy-locale > .policy-card:last-child {
  border-bottom-left-radius: var(--radius-lg);
  border-bottom-right-radius: var(--radius-lg);
}

.policy-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.policy-card p + p,
.policy-card ul + p,
.policy-card p + ul {
  margin-top: 8px;
}

.policy-card ul {
  margin: 0;
  padding-left: 22px;
  display: grid;
  gap: 6px;
}

.policy-card li strong {
  color: var(--muted-strong);
}

@media (max-width: 1080px) {
  .hero,
  .demo-layout,
  .gallery-grid,
  .check-grid,
  .workflow-grid,
  .download-grid,
  .compliance-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 28px;
  }

  .hero-downloads {
    grid-template-columns: 1fr;
    max-width: none;
  }

  .site-footer {
    display: grid;
    align-items: start;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100vw - 28px, 1240px);
    padding-top: 18px;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .hero,
  .registration,
  .workflow,
  .gallery,
  .demo,
  .downloads,
  .compliance,
  .site-footer,
  .policy-hero,
  .policy-card,
  .policy-notice {
    padding: 24px;
  }

  .hero-subtitle,
  .section-heading p,
  .check-card p,
  .workflow-card p,
  .download-card p,
  .demo-meta p,
  .policy-hero p,
  .policy-card p,
  .policy-card li,
  .policy-note,
  .policy-meta {
    font-size: 16px;
  }
}