/* ---- Theme tokens ---------------------------------------------------------
   Defaults are light. Dark values apply when either the OS prefers dark
   (and the user hasn't chosen) or [data-theme="dark"] is set on <html>.
   The explicit data-theme attribute always wins over the media query.        */
:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --card: #ffffff;
  --fg: #111827;
  --muted: #5b6472;
  --accent: #1b75bb;          /* Anodized brand blue */
  --accent-strong: #15629c;
  --border: #e6e8eb;
  --shadow: 0 1px 2px rgba(17, 24, 39, .04), 0 8px 24px rgba(17, 24, 39, .06);
  --hero-glow: radial-gradient(60% 60% at 50% 0%, rgba(27, 117, 187, .14), transparent 70%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1220;
    --surface: #111827;
    --card: #131b2b;
    --fg: #f3f4f6;
    --muted: #9aa4b2;
    --accent: #4aa3e8;        /* brand blue, brightened for dark */
    --accent-strong: #6bb6ef;
    --border: #26303f;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);
    --hero-glow: radial-gradient(60% 60% at 50% 0%, rgba(74, 163, 232, .20), transparent 70%);
  }
}

:root[data-theme="dark"] {
  --bg: #0b1220;
  --surface: #111827;
  --card: #131b2b;
  --fg: #f3f4f6;
  --muted: #9aa4b2;
  --accent: #4aa3e8;        /* brand blue, brightened for dark */
  --accent-strong: #6bb6ef;
  --border: #26303f;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px rgba(0, 0, 0, .35);
  --hero-glow: radial-gradient(60% 60% at 50% 0%, rgba(74, 163, 232, .20), transparent 70%);
}

/* ---- Base ----------------------------------------------------------------- */
* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Figtree", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  width: 100%;
}

main { flex: 1 0 auto; }

a { color: var(--accent-strong); }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; }

/* ---- Utilities ------------------------------------------------------------ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  cursor: pointer;
  display: inline-grid;
  place-items: center;
  box-shadow: var(--shadow);
  transition: border-color .15s ease, background .15s ease;
}

.theme-toggle:hover { border-color: var(--accent); }

/* Sun in light, moon in dark — drawn with a single element. */
.theme-toggle__icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow:
    0 -11px 0 -8px var(--accent), 0 11px 0 -8px var(--accent),
    -11px 0 0 -8px var(--accent), 11px 0 0 -8px var(--accent),
    -8px -8px 0 -8px var(--accent), 8px 8px 0 -8px var(--accent),
    -8px 8px 0 -8px var(--accent), 8px -8px 0 -8px var(--accent);
  transition: box-shadow .2s ease;
}

:root[data-theme="dark"] .theme-toggle__icon,
:root:not([data-theme="light"]) .theme-toggle__icon {
  background: transparent;
  box-shadow: inset -6px -3px 0 0 var(--accent);
  transform: rotate(-25deg);
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme-toggle__icon {
    background: var(--accent);
    box-shadow:
      0 -11px 0 -8px var(--accent), 0 11px 0 -8px var(--accent),
      -11px 0 0 -8px var(--accent), 11px 0 0 -8px var(--accent),
      -8px -8px 0 -8px var(--accent), 8px 8px 0 -8px var(--accent),
      -8px 8px 0 -8px var(--accent), 8px -8px 0 -8px var(--accent);
    transform: none;
  }
}

/* ---- Hero ----------------------------------------------------------------- */
.hero {
  text-align: center;
  padding-top: 3.5rem;
  padding-bottom: 3rem;
  background: var(--hero-glow);
}

.hero__title {
  font-size: clamp(2.6rem, 7vw, 4rem);
  font-weight: 800;
  margin: 0 0 .5rem;
}

/* Anodized wordmark — brand blue */
.anodize-text {
  color: var(--accent);
}

.hero__tagline {
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  font-weight: 600;
  color: var(--fg);
  margin: 0 0 1.25rem;
}

.hero__lead {
  max-width: 42rem;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.075rem;
}

/* ---- Sections ------------------------------------------------------------- */
.section { padding-top: 3rem; padding-bottom: 1rem; }

.section__title {
  text-align: center;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  margin: 0 0 2rem;
}

/* ---- Product list --------------------------------------------------------- */
.products {
  display: grid;
  gap: 1.25rem;
  max-width: 720px;
  margin: 0 auto;
}

.product {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.4rem 1.5rem;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}

.product:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
}

.product__icon {
  width: 72px;
  height: 72px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  flex: 0 0 auto;
}

.product__body { flex: 1 1 auto; min-width: 0; }

.product__name {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 .2rem;
}

.product__tagline {
  color: var(--accent-strong);
  font-weight: 600;
  font-size: .95rem;
  margin: 0 0 .4rem;
}

.product__desc { margin: 0; color: var(--muted); font-size: .98rem; }

.product__arrow {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 1.4rem;
  transition: transform .15s ease, color .15s ease;
}

.product:hover .product__arrow {
  color: var(--accent);
  transform: translateX(3px);
}

@media (max-width: 520px) {
  .product { flex-wrap: wrap; }
  .product__arrow { display: none; }
}

/* ---- Footer --------------------------------------------------------------- */
.footer {
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  margin-top: 3.5rem;
  padding-top: 2rem;
  padding-bottom: 3rem;
  text-align: center;
}
.footer__copy { color: var(--muted); font-size: .85rem; margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}
