/* ─── Reset / base ───────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ─── Tokens ─────────────────────────────────────────────────── */
:root {
  --brand-50: #eff4ff;
  --brand-100: #dbe6ff;
  --brand-200: #b8ccff;
  --brand-500: #4d7ee5;
  --brand-600: #2557d3;
  --brand-700: #1d44a9;
  --bg: #ffffff;
  --bg-elev: #f7f8fa;
  --bg-card: #ffffff;
  --bg-code: #f1f3f6;
  --border: #e2e6ec;
  --border-strong: #cbd2db;
  --fg: #0f172a;
  --fg-muted: #475569;
  --fg-dim: #64748b;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06),
    0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.08),
    0 4px 8px rgba(15, 23, 42, 0.04);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --bg-elev: #111a2e;
    --bg-card: #131d33;
    --bg-code: #1c2741;
    --border: #1f2a44;
    --border-strong: #2c3a5e;
    --fg: #e7ebf3;
    --fg-muted: #a3afc4;
    --fg-dim: #7e8aa2;
    --brand-500: #6c93ec;
    --brand-600: #4f7be4;
    --brand-700: #3a64c8;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4),
      0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.45),
      0 4px 8px rgba(0, 0, 0, 0.3);
  }
}

/* ─── Layout ─────────────────────────────────────────────────── */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--brand-600);
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  color: var(--brand-700);
  text-decoration: underline;
  text-underline-offset: 3px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    'Liberation Mono', 'Courier New', monospace;
  background: var(--bg-code);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

h1, h2, h3 {
  margin: 0;
  line-height: 1.2;
}

/* ─── Header ─────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
}

@media (prefers-color-scheme: dark) {
  .site-header {
    background: rgba(11, 18, 32, 0.78);
  }
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.brand:hover {
  color: var(--fg);
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand-600), var(--brand-700));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0;
  box-shadow: var(--shadow-sm);
}

.site-nav {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 14px;
}

.site-nav a {
  color: var(--fg-muted);
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--fg);
  text-decoration: none;
}

/* ─── Hero ───────────────────────────────────────────────────── */
.hero {
  padding: 88px 0 56px;
  text-align: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%,
      var(--brand-50) 0%,
      transparent 70%);
}

@media (prefers-color-scheme: dark) {
  .hero {
    background:
      radial-gradient(ellipse 80% 60% at 50% -10%,
        rgba(77, 126, 229, 0.12) 0%,
        transparent 70%);
  }
}

.unofficial-banner {
  display: inline-block;
  margin: 0 auto 24px;
  padding: 8px 14px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.4;
}

.unofficial-banner strong {
  color: var(--fg);
  font-weight: 700;
}

.badge-unofficial {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 6px;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--fg-dim);
  vertical-align: 3px;
}

.hero h1 {
  font-size: clamp(2rem, 1.4rem + 2.6vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}

.accent {
  background: linear-gradient(120deg, var(--brand-600), #6f3fd5);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  max-width: 760px;
  margin: 0 auto 28px;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.1rem);
  color: var(--fg-muted);
  line-height: 1.6;
}

.tagline strong {
  color: var(--fg);
  font-weight: 600;
}

.hero-meta {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.hero-meta li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--fg-muted);
  font-weight: 500;
}

.check {
  color: var(--brand-600);
  font-weight: 700;
}

/* ─── Sections ───────────────────────────────────────────────── */
.tools,
.philosophy {
  padding: 72px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.section-lead {
  margin: 0 auto;
  max-width: 560px;
  color: var(--fg-muted);
}

/* ─── Tool cards ─────────────────────────────────────────────── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 180ms ease, box-shadow 180ms ease,
    border-color 180ms ease;
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

.tool-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.tool-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--bg-elev);
  padding: 6px;
  flex-shrink: 0;
}

.tool-head h3 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.tool-platform {
  margin: 0;
  font-size: 12.5px;
  color: var(--fg-dim);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.tool-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg-muted);
  flex-grow: 1;
}

.tool-desc code {
  font-size: 13px;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease,
    border-color 150ms ease;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--brand-600);
  color: #fff;
  border-color: var(--brand-600);
  flex: 1;
}

.btn-primary:hover {
  background: var(--brand-700);
  border-color: var(--brand-700);
  color: #fff;
}

.btn-primary.disabled {
  background: var(--bg-elev);
  color: var(--fg-dim);
  border-color: var(--border);
  cursor: not-allowed;
  pointer-events: none;
}

.btn-secondary {
  background: transparent;
  color: var(--fg-muted);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-elev);
  color: var(--fg);
  border-color: var(--border-strong);
}

.tool-privacy {
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--fg-dim);
  text-align: center;
  text-decoration: none;
}

.tool-privacy:hover {
  color: var(--brand-600);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ─── More coming ───────────────────────────────────────────── */
.more-coming {
  margin: 36px auto 0;
  max-width: 640px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 14.5px;
}

.more-coming-mark {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  border: 1px dashed var(--border-strong);
  color: var(--fg-dim);
  font-weight: 600;
  margin-right: 6px;
  vertical-align: -4px;
}

/* ─── Philosophy ─────────────────────────────────────────────── */
.philosophy {
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.philosophy-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
}

.philosophy-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.philosophy-item p {
  margin: 0;
  font-size: 14.5px;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ─── Footer ─────────────────────────────────────────────────── */
.site-footer {
  padding: 36px 0 56px;
  font-size: 14px;
  color: var(--fg-muted);
  text-align: center;
}

.footer-row {
  margin: 0 0 8px;
}

.footer-row a {
  color: var(--fg-muted);
}

.footer-row a:hover {
  color: var(--fg);
}

.footer-note {
  margin: 0;
  color: var(--fg-dim);
  font-size: 12.5px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
}

/* ─── Responsive tweaks ──────────────────────────────────────── */
@media (max-width: 560px) {
  .hero {
    padding: 56px 0 40px;
  }

  .tools,
  .philosophy {
    padding: 48px 0;
  }

  .site-nav {
    gap: 16px;
    font-size: 13px;
  }

  .tool-head h3 {
    font-size: 1rem;
  }
}