*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  overflow-x: hidden;
}

:root {
  --bg: #08090d;
  --bg-card: #0f1118;
  --bg-code: #0b0c12;
  --bg-elevated: #141620;
  --border: #1e2030;
  --border-hover: #2d3050;
  --text: #d4d7e5;
  --text-dim: #6b7094;
  --accent: #5b7cfa;
  --accent-bright: #7b9aff;
  --accent-glow: rgba(91, 124, 250, 0.15);
  --green: #34d399;
  --green-glow: rgba(52, 211, 153, 0.12);
  --red: #f06060;
  --red-glow: rgba(240, 96, 96, 0.12);
  --yellow: #f0b040;
  --yellow-glow: rgba(240, 176, 64, 0.12);
  --purple: #9580ff;
  --orange: #e8914f;
  --radius: 12px;
  --radius-sm: 8px;
  --mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
  --sans: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Noise overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.7; }
}

/* ─── Hero ─── */

.hero {
  position: relative;
  text-align: center;
  padding: 100px 24px 72px;
  max-width: 780px;
  margin: 0 auto;
  animation: fadeUp 0.8s ease-out;
}

.hero-logo {
  width: 80px;
  height: 80px;
  margin-bottom: 24px;
  animation: fadeUp 0.6s ease-out;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: min(600px, 150vw);
  height: 400px;
  background: radial-gradient(ellipse, rgba(91,124,250,0.12) 0%, rgba(149,128,255,0.06) 40%, transparent 70%);
  pointer-events: none;
  animation: glow-pulse 6s ease-in-out infinite;
}

.hero h1 {
  font-family: var(--sans);
  font-size: 3.5rem;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -0.035em;
  line-height: 1.1;
  position: relative;
}

.hero h1 > span:first-child {
  background: linear-gradient(135deg, #fff 0%, var(--accent-bright) 50%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .version {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-dim);
  vertical-align: super;
  -webkit-text-fill-color: var(--text-dim);
  margin-left: 4px;
}

.hero .tagline {
  font-size: 1.15rem;
  color: var(--text-dim);
  margin: 0 0 36px;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* ─── Install command ─── */

.install-wrapper {
  display: inline-flex;
  flex-direction: column;
  align-items: stretch;
  animation: fadeUp 0.8s ease-out 0.15s both;
}

.install-tabs {
  display: flex;
}

.install-tab {
  flex: 1;
  padding: 7px 18px;
  background: transparent;
  border: 1px solid var(--border);
  border-bottom: none;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 0.72rem;
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  letter-spacing: 0.02em;
}

.install-tab:first-child {
  border-radius: var(--radius-sm) 0 0 0;
}

.install-tab:last-child {
  border-radius: 0 var(--radius-sm) 0 0;
}

.install-tab:not(:first-child) {
  border-left: none;
}

.install-tab.active {
  background: var(--bg-code);
  color: var(--text);
}

.install-tab:hover:not(.active) {
  color: var(--text);
}

.install-cmd {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  padding: 14px 22px;
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.install-cmd:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 24px var(--accent-glow);
}

.install-cmd .dollar {
  color: var(--accent);
  user-select: none;
}

.install-cmd .copy-hint {
  color: var(--text-dim);
  font-size: 0.7rem;
  opacity: 0;
  transition: opacity 0.2s;
}

.install-cmd:hover .copy-hint {
  opacity: 1;
}

.install-cmd.copied .copy-hint {
  opacity: 1;
  color: var(--green);
}

.hero-links {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 28px;
  animation: fadeUp 0.8s ease-out 0.3s both;
}

.hero-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}

.hero-links a:hover {
  color: var(--accent-bright);
}

/* ─── Features ─── */

.features {
  display: grid;
  grid-template-columns: repeat(4, minmax(200px, 1fr));
  gap: 1px;
  max-width: 960px;
  margin: 0 auto 96px;
  padding: 0 24px;
  animation: fadeUp 0.8s ease-out 0.2s both;
}

.feature-card {
  background: var(--bg-card);
  padding: 28px 24px;
  position: relative;
  transition: background 0.3s;
}

.feature-card:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.feature-card:last-child { border-radius: 0 var(--radius) var(--radius) 0; }

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--border);
  border-radius: inherit;
  pointer-events: none;
  transition: border-color 0.3s;
}

.feature-card:hover {
  background: var(--bg-elevated);
}

.feature-card:hover::before {
  border-color: var(--border-hover);
}

.feature-card .icon {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.feature-card h3 {
  margin: 0 0 6px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.feature-card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.8rem;
  line-height: 1.55;
}

/* ─── Sections ─── */

.section {
  max-width: 960px;
  margin: 0 auto 80px;
  padding: 0 24px;
}

.section-title {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  margin: 0 0 28px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 16px;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ─── Example blocks ─── */

.example {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 28px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.example:hover {
  border-color: var(--border-hover);
  box-shadow: 0 4px 40px rgba(0,0,0,0.3);
}

.example-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(255,255,255,0.015) 0%, transparent 100%);
}

.example-header h3 {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text);
}

.example-header h3::before {
  content: '//';
  color: var(--text-dim);
  margin-right: 8px;
  font-weight: 400;
}

.example-header .badge {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--accent-glow);
  color: var(--accent-bright);
  font-weight: 500;
  border: 1px solid rgba(91,124,250,0.2);
}

.example-body {
  display: flex;
}

.example-code {
  flex: 1;
  min-width: 0;
  border-right: 1px solid var(--border);
  background: var(--bg-code);
  overflow: hidden;
}

.example-code pre {
  margin: 0;
  padding: 20px 24px;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.75;
  overflow-x: auto;
  color: var(--text);
  max-width: 100%;
}

.example-preview {
  width: 300px;
  min-width: 300px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.example-preview-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 14px;
}

/* ─── Syntax highlighting ─── */

.example-code .kw { color: var(--purple); }
.example-code .fn { color: var(--accent-bright); }
.example-code .str { color: var(--green); }
.example-code .cm { color: #4a4f6e; font-style: italic; }
.example-code .num { color: var(--yellow); }
.example-code .op { color: #4a4f6e; }
.example-code .prop { color: var(--orange); }

/* ─── Demo components ─── */

.demo-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px; /* Prevents zoom on iOS */
  width: 100%;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.demo-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.demo-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  font-family: var(--sans);
  font-size: 0.82rem;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.demo-btn:hover {
  background: var(--accent-bright);
  box-shadow: 0 0 16px var(--accent-glow);
}

.demo-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.demo-btn-sm {
  padding: 5px 12px;
  font-size: 0.72rem;
  border-radius: 5px;
}

.demo-btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.demo-btn-ghost:hover {
  border-color: var(--border-hover);
  color: var(--text);
  background: rgba(255,255,255,0.03);
  box-shadow: none;
}

.demo-btn-danger {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--red);
}

.demo-btn-danger:hover {
  border-color: rgba(240, 96, 96, 0.4);
  background: var(--red-glow);
  box-shadow: none;
}

.demo-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 5px;
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.demo-status.idle { color: var(--text-dim); background: rgba(107,112,148,0.08); }
.demo-status.pending { color: var(--yellow); background: var(--yellow-glow); }
.demo-status.completed { color: var(--green); background: var(--green-glow); }
.demo-status.failed { color: var(--red); background: var(--red-glow); }

.demo-result {
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.5;
}

.demo-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ─── Skeleton ─── */

.skeleton {
  background: linear-gradient(90deg, var(--border) 25%, rgba(255,255,255,0.04) 50%, var(--border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}

/* ─── Like button ─── */

.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.25s;
  user-select: none;
}

.like-btn:hover {
  border-color: rgba(240, 96, 96, 0.4);
  background: var(--red-glow);
}

.like-btn.liked {
  border-color: var(--red);
  background: var(--red-glow);
  color: var(--red);
  box-shadow: 0 0 20px rgba(240, 96, 96, 0.1);
}

.like-btn .heart {
  font-size: 1.1rem;
  transition: transform 0.2s;
}

.like-btn:active .heart {
  transform: scale(1.3);
}

/* ─── Resource list ─── */

.resource-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}

.resource-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 4px;
  font-size: 0.82rem;
  transition: border-color 0.2s;
}

.resource-list li:hover {
  border-color: var(--border-hover);
}

.resource-form {
  display: flex;
  gap: 8px;
}

.resource-form .demo-input {
  flex: 1;
}

/* ─── API Reference ─── */

.api-ref {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}

.api-ref table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.api-ref th {
  text-align: left;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.api-ref td {
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.api-ref tr:last-child td {
  border-bottom: none;
}

.api-ref code {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent-bright);
  background: var(--accent-glow);
  padding: 2px 7px;
  border-radius: 4px;
}

.api-ref code.method {
  color: var(--green);
  background: var(--green-glow);
}

.api-ref .api-group td {
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 500;
  padding: 14px 20px 6px;
  border-bottom: none;
  background: rgba(255,255,255,0.015);
}

.api-ref .desc {
  color: var(--text-dim);
}

.api-enum-name {
  color: var(--purple) !important;
  background: rgba(149, 128, 255, 0.1) !important;
}

.api-enum-import {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  background: none;
  padding: 0;
  margin-bottom: 10px;
}

.api-enum-values {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.api-enum-values > span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.api-enum-values code {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--purple);
  background: rgba(149, 128, 255, 0.1);
  padding: 2px 7px;
  border-radius: 4px;
}

.api-enum-values .desc {
  color: var(--text-dim);
  font-size: 0.72rem;
}

/* ─── Footer ─── */

.footer {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-dim);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
  max-width: 960px;
  margin: 48px auto 0;
  letter-spacing: 0.01em;
}

.footer a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

.footer a:hover {
  color: var(--accent-bright);
}

/* ─── Responsive ─── */

@media (max-width: 900px) {
  .features {
    grid-template-columns: repeat(2, minmax(200px, 1fr));
  }
  .feature-card:first-child { border-radius: var(--radius) 0 0 0; }
  .feature-card:nth-child(2) { border-radius: 0 var(--radius) 0 0; }
  .feature-card:nth-child(3) { border-radius: 0 0 0 var(--radius); }
  .feature-card:last-child { border-radius: 0 0 var(--radius) 0; }
}

@media (max-width: 768px) {
  .hero { padding: 72px 20px 56px; }
  .hero h1 { font-size: 2.4rem; }
  .hero .tagline { font-size: 1rem; }

  .example-body {
    flex-direction: column;
  }

  .example-code {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .example-preview {
    width: 100%;
    min-width: 0;
  }
}

@media (max-width: 480px) {
  .features {
    grid-template-columns: minmax(200px, 1fr);
  }
  .feature-card { border-radius: 0 !important; }
  .feature-card:first-child { border-radius: var(--radius) var(--radius) 0 0 !important; }
  .feature-card:last-child { border-radius: 0 0 var(--radius) var(--radius) !important; }

  .hero h1 { font-size: 2rem; }

  .api-ref table {
    font-size: 0.75rem;
  }
  
  .api-ref th,
  .api-ref td {
    padding: 8px 12px;
  }
  
  .api-ref code {
    font-size: 0.68rem;
    padding: 1px 5px;
  }
}