:root {
  --bg: #0b1020;
  --card: rgba(255, 255, 255, 0.06);
  --card-strong: rgba(255, 255, 255, 0.10);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --line: rgba(255, 255, 255, 0.12);

  --accent: #6ee7ff;
  --accent2: #a78bfa;

  --radius: 18px;
  --shadow: 0 12px 35px rgba(0,0,0,0.35);
  --container: 1100px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(110,231,255,0.25), transparent 55%),
              radial-gradient(1000px 520px at 80% 0%, rgba(167,139,250,0.22), transparent 55%),
              linear-gradient(180deg, #070a14 0%, var(--bg) 100%);
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 18px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  background: #fff;
  color: #000;
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 9999;
}
.skip-link:focus { left: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(10, 14, 30, 0.65);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 240px;
}
.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(110,231,255,0.25), rgba(167,139,250,0.25));
  border: 1px solid var(--line);
}
.brand-text { display: grid; line-height: 1.05; }
.brand-text span { color: var(--muted); font-size: 13px; margin-top: 2px; }

.nav {
  display: flex;
  gap: 14px;
  align-items: center;
}
.nav a {
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 12px;
}
.nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.06);
  text-decoration: none;
}

.menu-btn {
  display: none;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
  padding: 10px 18px 14px;
}
.mobile-nav a {
  display: block;
  padding: 12px 10px;
  color: var(--muted);
  border-radius: 12px;
}
.mobile-nav a:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  text-decoration: none;
}

.hero {
  padding: 56px 0 26px;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
  align-items: start;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.05);
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 10px;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 4vw, 46px);
  letter-spacing: -0.02em;
  line-height: 1.06;
}
.lead {
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.65;
  margin: 0 0 18px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.btn:hover { transform: translateY(-1px); background: rgba(255,255,255,0.09); text-decoration: none; }
.btn.primary {
  border-color: rgba(110,231,255,0.45);
  background: linear-gradient(135deg, rgba(110,231,255,0.20), rgba(167,139,250,0.18));
}
.btn.ghost { background: transparent; }
.btn.small { padding: 10px 12px; border-radius: 12px; }

.hero-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.mini-card {
  padding: 12px 12px 11px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
}
.mini-card strong { display: block; font-size: 16px; }
.mini-card span { color: var(--muted); font-size: 13px; }

.hero-visual {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  box-shadow: var(--shadow);
  padding: 14px;
}
.hero-visual-inner {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(900px 300px at 30% 0%, rgba(110,231,255,0.25), transparent 55%),
    radial-gradient(700px 250px at 70% 10%, rgba(167,139,250,0.22), transparent 55%),
    linear-gradient(180deg, rgba(0,0,0,0.15), rgba(0,0,0,0.35));
  min-height: 220px;
  position: relative;
}
.visual-top {
  display: flex;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(0,0,0,0.15);
}
.dot {
  width: 10px; height: 10px; border-radius: 999px;
  background: rgba(255,255,255,0.20);
  border: 1px solid rgba(255,255,255,0.18);
}
.visual-body { padding: 18px 16px 20px; }
.visual-title { margin: 0; font-weight: 700; font-size: 18px; }
.visual-sub { margin: 8px 0 0; color: var(--muted); }

.hint { margin: 10px 2px 0; color: var(--muted); font-size: 12.5px; }

.section {
  padding: 44px 0;
}
.section.alt {
  background: rgba(255,255,255,0.03);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 16px;
}
.section-head h2 {
  margin: 0 0 6px;
  font-size: 26px;
  letter-spacing: -0.01em;
}
.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.card.note {
  background: linear-gradient(135deg, rgba(110,231,255,0.10), rgba(167,139,250,0.08));
  border-color: rgba(255,255,255,0.16);
}

.prose p { color: var(--muted); line-height: 1.72; }
.prose h3 { margin: 0 0 8px; }
.source { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line); color: var(--muted); }

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}
.checklist {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  color: var(--muted);
}
.checklist li {
  padding-left: 28px;
  position: relative;
  margin: 10px 0;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  color: var(--text);
}

.timeline {
  display: grid;
  gap: 12px;
}
.t-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 12px;
  align-items: start;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 14px;
}
.t-year {
  font-weight: 800;
  letter-spacing: -0.01em;
  color: rgba(255,255,255,0.90);
  background: rgba(0,0,0,0.18);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  text-align: center;
}
.t-body h3 { margin: 0 0 6px; font-size: 16px; }
.t-body p { margin: 0; color: var(--muted); line-height: 1.65; }

.table-wrap {
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: auto;
  background: rgba(0,0,0,0.12);
}
.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 420px;
}
.table th, .table td {
  text-align: left;
  padding: 12px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.table th { color: var(--text); font-weight: 700; background: rgba(255,255,255,0.05); }

.pill-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.pill {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
  color: var(--muted);
  font-size: 13px;
}

.divider {
  height: 1px;
  background: var(--line);
  margin: 14px 0;
}

.footer {
  padding: 18px 0;
  border-top: 1px solid var(--line);
  background: rgba(0,0,0,0.12);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.footer p { margin: 0; color: var(--muted); }
.backtop {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
  color: var(--muted);
}
.backtop:hover { color: var(--text); text-decoration: none; background: rgba(255,255,255,0.08); }

.muted { color: var(--muted); }
.tiny { font-size: 12.5px; }

/* Responsive */
@media (max-width: 940px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .nav { display: none; }
  .menu-btn { display: inline-flex; }
  .grid-2 { grid-template-columns: 1fr; }
  .t-item { grid-template-columns: 1fr; }
  .t-year { text-align: left; }
  .hero-cards { grid-template-columns: 1fr; }
}


/* HERO Photos (nice + consistent) */
.hero-photo {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.12);
}

.hero-photo img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.hero-photo-caption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  background: rgba(0,0,0,0.12);
}

.hero-thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.hero-thumbs img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.12);
  transition: transform 160ms ease, opacity 160ms ease;
}

.hero-thumbs img:hover {
  transform: translateY(-1px);
  opacity: 0.95;
}

@media (max-width: 820px) {
  .hero-thumbs {
    grid-template-columns: 1fr;
  }
  .hero-thumbs img {
    aspect-ratio: 16 / 9;
  }
}