:root {
  color-scheme: light;
  --bg: #ffffff;
  --bg-alt: #f7f7f7;
  --surface: #ffffff;
  --surface-strong: #eef5fb;
  --navy: #003366;
  --blue: #0066cc;
  --blue-soft: #eaf4ff;
  --orange: #ff6600;
  --orange-soft: #fff0e6;
  --text: #3c3c3c;
  --muted: #687684;
  --border: #dce4eb;
  --border-strong: #c5d2dd;
  --success: #18864b;
  --shadow: 0 18px 50px rgba(0, 51, 102, 0.09);
  --shadow-small: 0 8px 24px rgba(0, 51, 102, 0.07);
  --container: 1160px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 11px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #07111f;
  --bg-alt: #0a1627;
  --surface: #0d1b2f;
  --surface-strong: #12243d;
  --navy: #f7f9fc;
  --blue: #4b9eff;
  --blue-soft: rgba(75, 158, 255, 0.12);
  --orange: #ff7a29;
  --orange-soft: rgba(255, 122, 41, 0.12);
  --text: #d8e3ee;
  --muted: #9fb1c5;
  --border: #203855;
  --border-strong: #2b4b70;
  --success: #64d98b;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.30);
  --shadow-small: 0 10px 30px rgba(0, 0, 0, 0.22);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  transition: background 160ms ease, color 160ms ease;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { font: inherit; }
p { line-height: 1.75; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--navy); letter-spacing: -0.04em; }

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 8px;
  color: #fff;
  background: var(--blue);
}
.skip-link:focus { top: 20px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(16px);
}
.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
  font-weight: 850;
  letter-spacing: -0.03em;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(145deg, #003366, #0066cc);
  box-shadow: var(--shadow-small);
  font-size: 13px;
}
.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.08;
}
.brand-copy small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--blue);
}
.theme-toggle {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--navy);
  background: var(--surface);
  cursor: pointer;
}
.theme-toggle:hover {
  border-color: var(--blue);
  background: var(--blue-soft);
}

/* Buttons */
.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary {
  color: #fff;
  background: var(--blue);
  box-shadow: 0 12px 26px color-mix(in srgb, var(--blue) 24%, transparent);
}
.button-secondary {
  color: var(--navy);
  border-color: var(--border-strong);
  background: var(--surface);
}
.button-secondary:hover {
  border-color: var(--blue);
  background: var(--blue-soft);
}

/* Generic page layout */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 76px;
  border-bottom: 1px solid var(--border);
}
.page-hero::after {
  content: "";
  position: absolute;
  top: -230px;
  right: -220px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--blue) 14%, transparent), transparent 68%);
  pointer-events: none;
}
.page-hero-inner { position: relative; z-index: 1; }
.eyebrow,
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.eyebrow::before,
.section-label::before {
  content: "";
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: var(--orange);
}
.page-hero h1 {
  max-width: 860px;
  margin-bottom: 22px;
  font-size: clamp(46px, 7vw, 78px);
  line-height: 1;
}
.page-hero p {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 19px;
}
.section { padding: 92px 0; }
.section-alt { background: var(--bg-alt); }
.section-header {
  max-width: 720px;
  margin-bottom: 42px;
}
.section-header h2 {
  margin-bottom: 14px;
  font-size: clamp(32px, 5vw, 50px);
}
.section-header p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

/* Homepage */
.home-hero {
  position: relative;
  overflow: hidden;
  padding: 105px 0 92px;
}
.home-hero::before {
  content: "";
  position: absolute;
  top: -220px;
  right: -220px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--blue) 16%, transparent), transparent 68%);
}
.home-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  align-items: center;
  gap: 68px;
}
.home-hero h1 {
  max-width: 780px;
  margin-bottom: 24px;
  font-size: clamp(50px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.065em;
}
.hero-copy {
  max-width: 680px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 20px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.lab-card {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, color-mix(in srgb, var(--surface) 96%, var(--blue) 4%), var(--surface));
  box-shadow: var(--shadow);
}
.lab-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 22px;
}
.lab-card-title {
  color: var(--navy);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.lab-card-id {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  font-size: 11px;
}
.lab-status-list { display: grid; gap: 12px; }
.lab-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 14px 15px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-alt);
}
.lab-status-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
}
.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--success) 14%, transparent);
}
.status-value {
  color: var(--success);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.card {
  display: flex;
  flex-direction: column;
  min-height: 320px;
  padding: 25px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-small);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.card:hover {
  transform: translateY(-5px);
  border-color: var(--blue);
  box-shadow: var(--shadow);
}
.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 14px;
  color: var(--blue);
  background: var(--blue-soft);
  font-size: 14px;
  font-weight: 850;
}
.card h2,
.card h3 {
  margin-bottom: 12px;
  font-size: 24px;
}
.card p {
  margin-bottom: 22px;
  color: var(--muted);
}
.card-link {
  margin-top: auto;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
}
.badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.badge-active {
  color: var(--success);
  background: color-mix(in srgb, var(--success) 12%, transparent);
}
.badge-planning {
  color: var(--blue);
  background: var(--blue-soft);
}
.card .badge { margin-bottom: 18px; }

.split-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.info-panel {
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.info-panel h2,
.info-panel h3 { margin-bottom: 12px; }
.info-panel p { color: var(--muted); margin-bottom: 0; }

/* Community preview */
.community-preview {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  align-items: center;
  gap: 42px;
  padding: 48px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--surface), color-mix(in srgb, var(--blue-soft) 72%, var(--surface)));
  box-shadow: var(--shadow);
}
.community-preview h2 { font-size: clamp(32px, 5vw, 48px); }
.community-preview p { color: var(--muted); font-size: 17px; }
.community-points { display: grid; gap: 11px; }
.community-point {
  padding: 13px 15px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  font-size: 13px;
  font-weight: 750;
}

/* Under construction */
.construction-shell {
  min-height: calc(100vh - 150px);
  display: grid;
  place-items: center;
  padding: 70px 0;
}
.construction-card {
  width: min(820px, 100%);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.construction-image-wrap { padding: 24px 24px 0; }
.construction-image {
  display: block;
  width: 100%;
  max-height: 380px;
  object-fit: cover;
  border-radius: 16px;
}
.construction-content {
  padding: 34px;
  text-align: center;
}
.construction-content h1 {
  margin-bottom: 16px;
  font-size: clamp(38px, 7vw, 62px);
  line-height: 1;
}
.construction-content p {
  max-width: 620px;
  margin: 0 auto 22px;
  color: var(--muted);
  font-size: 17px;
}
.construction-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, var(--orange) 28%, transparent);
  border-radius: 999px;
  color: var(--orange);
  background: var(--orange-soft);
  font-size: 13px;
  font-weight: 800;
}

/* Footer */
.site-footer {
  padding: 42px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
}
.footer-grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}
.footer-brand {
  color: var(--navy);
  font-size: 18px;
  font-weight: 850;
}
.footer-copy {
  max-width: 430px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.footer-meta {
  color: var(--muted);
  text-align: right;
  font-size: 12px;
  line-height: 1.7;
}
.footer-online {
  color: var(--success);
  font-weight: 850;
}

/* 404 */
.error-page {
  min-height: calc(100vh - 150px);
  display: grid;
  place-items: center;
  padding: 80px 0;
  text-align: center;
}
.error-code {
  margin-bottom: 12px;
  color: var(--orange);
  font-size: clamp(72px, 16vw, 150px);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.08em;
}
.error-page h1 { font-size: clamp(36px, 6vw, 58px); }
.error-page p {
  max-width: 620px;
  margin: 0 auto 26px;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .home-grid,
  .community-preview,
  .split-panel {
    grid-template-columns: 1fr;
  }
  .card-grid { grid-template-columns: 1fr; }
  .home-grid { gap: 46px; }
  .community-preview { padding: 36px 28px; }
}
@media (max-width: 620px) {
  .container { width: min(var(--container), calc(100% - 28px)); }
  .brand-copy small { display: none; }
  .home-hero { padding: 76px 0 70px; }
  .home-hero h1 { font-size: 48px; }
  .page-hero { padding: 72px 0 60px; }
  .section { padding: 72px 0; }
  .hero-actions,
  .hero-actions .button { width: 100%; }
  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }
  .footer-meta { text-align: left; }
  .construction-image-wrap { padding: 14px 14px 0; }
  .construction-content { padding: 28px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}


/* Language switcher */
.language-switcher {
  position: relative;
}

.language-button {
  min-width: 70px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--navy);
  background: var(--surface);
  cursor: pointer;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.04em;
}

.language-button:hover,
.language-button[aria-expanded="true"] {
  border-color: var(--blue);
  background: var(--blue-soft);
}

.language-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 200;
  min-width: 210px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.language-menu[hidden] {
  display: none;
}

.language-option {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 12px;
  border: 0;
  border-radius: 9px;
  color: var(--text);
  background: transparent;
  cursor: pointer;
  text-align: left;
  font-size: 13px;
  font-weight: 700;
}

.language-option:hover,
.language-option[aria-current="true"] {
  color: var(--blue);
  background: var(--blue-soft);
}

.language-option-code {
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.08em;
}

@media (max-width: 620px) {
  .header-actions {
    gap: 8px;
  }

  .language-button {
    min-width: 58px;
    padding: 0 9px;
  }
}