@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
  --bg: #06050f;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-hover: rgba(255, 255, 255, 0.08);
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f0eeff;
  --text-dim: rgba(240, 238, 255, 0.7);
  --muted: rgba(240, 238, 255, 0.45);
  --accent: #818cf8;
  --accent2: #f472b6;
  --accent3: #34d399;
  --radius: 16px;
  --max: 1160px;
  --font: 'Inter', 'Hiragino Sans', 'Yu Gothic', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── Background orbs ─── */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}

body::before {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, #6d28d9, transparent 70%);
  top: -200px;
  left: -200px;
}

body::after {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #0ea5e9, transparent 70%);
  top: -100px;
  right: -150px;
}

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

.container {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ─── Header ─── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(6, 5, 15, 0.75);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand__mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: white;
  font-size: 0.72rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}

.site-nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 500;
}

.site-nav a { transition: color 0.15s; }
.site-nav a:hover { color: var(--text); }

/* ─── Headings ─── */
h1, h2, h3 {
  font-family: var(--font);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  background: linear-gradient(135deg, #fff 30%, rgba(240,238,255,0.6));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 800; }
h3 { font-size: 1rem; font-weight: 700; }

p { color: var(--muted); line-height: 1.8; }

/* ─── Hero ─── */
.hero { padding: 60px 0 48px; }

/* ─── Panel / glass surface ─── */
.panel,
.stat,
.category-card,
.feature-card,
.faq,
.footer-box,
.preview-window {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.panel { padding: 32px; position: relative; overflow: hidden; }

/* ─── Eyebrow / chip ─── */
.eyebrow,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line-strong);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  backdrop-filter: blur(8px);
}

/* ─── Action rows ─── */
.action-row,
.chip-row,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ─── Hero layout ─── */
.hero__grid { display: grid; gap: 20px; align-items: start; }

.hero__mainline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.hero__titleblock { display: grid; gap: 16px; }

/* ─── Quick links ─── */
.quick-links,
.browse-sidebar__links { display: flex; flex-wrap: wrap; gap: 10px; }

.quick-links {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 8px;
}

.quick-links a,
.browse-sidebar__links a {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-weight: 600;
  font-size: 0.88rem;
  line-height: 1.35;
  color: var(--text-dim);
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.quick-links a:hover,
.browse-sidebar__links a:hover {
  border-color: var(--line-strong);
  background: var(--surface-hover);
  color: var(--text);
}

/* ─── Buttons ─── */
.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 11px 22px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: transform 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

.button {
  color: white;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 8px 24px rgba(129, 140, 248, 0.3);
}

.button:hover { transform: translateY(-1px); box-shadow: 0 12px 32px rgba(129, 140, 248, 0.4); }

.button-secondary {
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--text-dim);
}

.button-secondary:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

/* ─── Stats ─── */
.hero__stats { display: grid; gap: 14px; align-content: start; }

.stat { padding: 24px; }

.stat strong {
  display: block;
  margin: 12px 0 8px;
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Preview windows ─── */
.preview-window { overflow: hidden; border-radius: 20px; }

.preview-window--code {
  background: rgba(0, 0, 0, 0.6);
  color: #a5f3d4;
  transform: rotate(-2deg);
  border-color: rgba(129, 140, 248, 0.2);
}

.preview-window--output {
  background: rgba(255, 255, 255, 0.04);
  width: min(88%, 420px);
  margin-left: auto;
  transform: rotate(3deg);
}

.preview-window__bar {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid var(--line);
}

.preview-window__bar span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

.preview-window__body { padding: 24px; }

.preview-window pre {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  font-family: 'SF Mono', 'Menlo', monospace;
  white-space: pre-wrap;
  color: var(--text-dim);
}

.preview-label {
  margin-bottom: 12px;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.stat--floating {
  width: min(78%, 320px);
  margin-top: -18px;
  margin-left: 8px;
}

/* ─── Sections ─── */
.section { padding: 20px 0 48px; position: relative; z-index: 1; }

.section__header {
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
}

/* ─── Grids ─── */
.grid-3, .grid-4 { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.task-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.browse-layout {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  align-items: start;
}

.browse-sidebar, .browse-main { display: grid; gap: 16px; }

/* ─── Cards ─── */
.category-card,
.feature-card {
  padding: 24px;
  display: grid;
  gap: 14px;
  transition: border-color 0.15s, background 0.15s;
}

.category-card:hover,
.feature-card:hover {
  border-color: var(--line-strong);
  background: var(--surface-hover);
}

.category-card__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.2), rgba(244, 114, 182, 0.2));
  color: var(--accent);
  font-weight: 800;
}

.category-card a,
.feature-card a,
.list a {
  color: var(--accent);
  font-weight: 600;
}

.category-card a:hover,
.feature-card a:hover,
.list a:hover { color: #a5b4fc; }

/* ─── List ─── */
.list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.list li {
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.92rem;
  padding-left: 16px;
  position: relative;
}

.list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  opacity: 0.5;
}

/* ─── FAQ ─── */
.faq { padding: 22px; }

.faq details { padding: 16px 0; border-top: 1px solid var(--line); }
.faq details:first-of-type { border-top: 0; padding-top: 0; }
.faq summary { cursor: pointer; font-weight: 700; color: var(--text-dim); }
.faq p { color: var(--muted); line-height: 1.8; margin-top: 8px; }

/* ─── CTA ─── */
.cta { padding-bottom: 64px; }

/* ─── Footer ─── */
.footer-box { padding: 20px 24px; }

.footer-panel {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 500;
}

.footer-links a:hover { color: var(--text); }

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.22); }

/* ─── Selection ─── */
::selection { background: rgba(129, 140, 248, 0.3); color: white; }

/* ─── Responsive ─── */
@media (max-width: 980px) {
  .hero__grid,
  .grid-4,
  .grid-3,
  .task-grid,
  .browse-layout,
  .footer-panel,
  .section__header {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: start;
  }
}

@media (max-width: 720px) {
  .site-header__inner {
    height: auto;
    padding: 14px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav { flex-wrap: wrap; }

  .hero { padding: 40px 0 36px; }

  h1 { font-size: clamp(1.6rem, 8vw, 2.2rem); }

  .panel,
  .category-card,
  .feature-card,
  .faq,
  .footer-box { padding: 18px; }

  .hero__mainline { flex-direction: column; align-items: flex-start; }
  .quick-links { grid-template-columns: 1fr 1fr; }

  .preview-window--output,
  .stat--floating { width: 100%; margin-left: 0; }
}