/* ==========================================================================
   Withings MCP — landing page stylesheet
   Self-hosted fonts. Light + dark themes via :root[data-theme="..."] tokens,
   with a prefers-color-scheme fallback for no-JS visitors.
   ========================================================================== */

/* ---- Fonts --------------------------------------------------------------- */

@font-face {
  font-family: "Bricolage Grotesque";
  font-style: normal;
  font-weight: 500 800;
  font-display: swap;
  src: url("/fonts/bricolage-grotesque-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122,
    U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/fonts/inter-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122,
    U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---- Design tokens: structure -------------------------------------------- */

:root {
  --font-display: "Bricolage Grotesque", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Monaco,
    Consolas, monospace;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6.5rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.125rem;
  --radius-xl: 1.5rem;
  --radius-full: 999px;

  --topbar-h: 4rem;

  --fs-h1: clamp(2.5rem, 1.5rem + 4vw, 4.25rem);
  --fs-h2: clamp(1.7rem, 1.3rem + 1.8vw, 2.5rem);
  --fs-h3: 1.125rem;
  --fs-lead: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --fs-sub: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);

  /* ---- Design tokens: light theme (default) ------------------------------- */

  color-scheme: light;

  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #f0f4f9;
  --text: #0b1524;
  --text-2: #43536b;
  --text-3: #5f7089;
  --border: #e3e9f1;
  --border-strong: #c9d5e3;

  --accent: #0f766e;
  --accent-2: #4338ca;
  --accent-soft: rgba(13, 148, 136, 0.1);
  --accent-ring: rgba(15, 118, 110, 0.35);

  --grad-brand: linear-gradient(115deg, #0f9c8c 0%, #0891b2 48%, #5850ec 100%);
  --grad-btn: linear-gradient(115deg, #0f766e 0%, #0e7490 48%, #4338ca 100%);
  --grad-text: linear-gradient(100deg, #0d7a70 0%, #0e7490 45%, #4f46e5 100%);
  --btn-ink: #ffffff;

  --glow-a: rgba(13, 148, 136, 0.16);
  --glow-b: rgba(79, 70, 229, 0.12);
  --glow-c: rgba(8, 145, 178, 0.1);
  --grid-line: rgba(11, 21, 36, 0.05);
  --dot: rgba(11, 21, 36, 0.055);

  --glass: rgba(247, 249, 252, 0.72);
  --glass-border: rgba(11, 21, 36, 0.08);

  --tile-sleep-bg: rgba(99, 102, 241, 0.12);
  --tile-sleep-fg: #4f46e5;
  --tile-body-bg: rgba(13, 148, 136, 0.12);
  --tile-body-fg: #0f766e;
  --tile-activity-bg: rgba(8, 145, 178, 0.12);
  --tile-activity-fg: #0e7490;
  --tile-heart-bg: rgba(225, 29, 72, 0.1);
  --tile-heart-fg: #be123c;

  --ok-bg: #e9f9f0;
  --ok-text: #0a7844;
  --ok-border: #b3ebcd;
  --ok-dot: #10b981;

  --down-bg: #fdefee;
  --down-text: #b42318;
  --down-border: #f5c6c1;
  --down-dot: #ef4444;

  --shadow-card: 0 1px 2px rgba(11, 21, 36, 0.04),
    0 6px 20px rgba(11, 21, 36, 0.05);
  --shadow-lift: 0 2px 4px rgba(11, 21, 36, 0.05),
    0 14px 36px rgba(11, 21, 36, 0.11);
  --shadow-btn: 0 6px 18px rgba(14, 116, 144, 0.28);
}

/* ---- Design tokens: dark theme (system fallback, no JS) -------------------- */

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --bg: #060b14;
    --surface: #0d1522;
    --surface-2: #131d2e;
    --text: #eaf1f9;
    --text-2: #adbccf;
    --text-3: #8595ac;
    --border: #1c2839;
    --border-strong: #2b3c53;

    --accent: #2dd4bf;
    --accent-2: #a5b4fc;
    --accent-soft: rgba(45, 212, 191, 0.12);
    --accent-ring: rgba(45, 212, 191, 0.45);

    --grad-brand: linear-gradient(115deg, #2dd4bf 0%, #22d3ee 48%, #818cf8 100%);
    --grad-btn: linear-gradient(115deg, #2dd4bf 0%, #22d3ee 48%, #8b9cf9 100%);
    --grad-text: linear-gradient(100deg, #40e0cb 0%, #38bdf8 45%, #a5b4fc 100%);
    --btn-ink: #04101c;

    --glow-a: rgba(45, 212, 191, 0.12);
    --glow-b: rgba(129, 140, 248, 0.11);
    --glow-c: rgba(56, 189, 248, 0.09);
    --grid-line: rgba(234, 241, 249, 0.04);
    --dot: rgba(234, 241, 249, 0.05);

    --glass: rgba(6, 11, 20, 0.62);
    --glass-border: rgba(234, 241, 249, 0.08);

    --tile-sleep-bg: rgba(129, 140, 248, 0.14);
    --tile-sleep-fg: #a5b4fc;
    --tile-body-bg: rgba(45, 212, 191, 0.13);
    --tile-body-fg: #2dd4bf;
    --tile-activity-bg: rgba(56, 189, 248, 0.13);
    --tile-activity-fg: #38bdf8;
    --tile-heart-bg: rgba(251, 113, 133, 0.12);
    --tile-heart-fg: #fb7185;

    --ok-bg: rgba(16, 185, 129, 0.12);
    --ok-text: #4ade80;
    --ok-border: rgba(74, 222, 128, 0.28);
    --ok-dot: #34d399;

    --down-bg: rgba(239, 68, 68, 0.12);
    --down-text: #f87171;
    --down-border: rgba(248, 113, 113, 0.3);
    --down-dot: #f87171;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lift: 0 2px 4px rgba(0, 0, 0, 0.4), 0 18px 44px rgba(0, 0, 0, 0.5);
    --shadow-btn: 0 6px 20px rgba(34, 211, 238, 0.2);
  }
}

/* ---- Design tokens: explicit toggle (wins over system fallback) ------------ */

:root[data-theme="light"] {
  color-scheme: light;

  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-2: #f0f4f9;
  --text: #0b1524;
  --text-2: #43536b;
  --text-3: #5f7089;
  --border: #e3e9f1;
  --border-strong: #c9d5e3;

  --accent: #0f766e;
  --accent-2: #4338ca;
  --accent-soft: rgba(13, 148, 136, 0.1);
  --accent-ring: rgba(15, 118, 110, 0.35);

  --grad-brand: linear-gradient(115deg, #0f9c8c 0%, #0891b2 48%, #5850ec 100%);
  --grad-btn: linear-gradient(115deg, #0f766e 0%, #0e7490 48%, #4338ca 100%);
  --grad-text: linear-gradient(100deg, #0d7a70 0%, #0e7490 45%, #4f46e5 100%);
  --btn-ink: #ffffff;

  --glow-a: rgba(13, 148, 136, 0.16);
  --glow-b: rgba(79, 70, 229, 0.12);
  --glow-c: rgba(8, 145, 178, 0.1);
  --grid-line: rgba(11, 21, 36, 0.05);
  --dot: rgba(11, 21, 36, 0.055);

  --glass: rgba(247, 249, 252, 0.72);
  --glass-border: rgba(11, 21, 36, 0.08);

  --tile-sleep-bg: rgba(99, 102, 241, 0.12);
  --tile-sleep-fg: #4f46e5;
  --tile-body-bg: rgba(13, 148, 136, 0.12);
  --tile-body-fg: #0f766e;
  --tile-activity-bg: rgba(8, 145, 178, 0.12);
  --tile-activity-fg: #0e7490;
  --tile-heart-bg: rgba(225, 29, 72, 0.1);
  --tile-heart-fg: #be123c;

  --ok-bg: #e9f9f0;
  --ok-text: #0a7844;
  --ok-border: #b3ebcd;
  --ok-dot: #10b981;

  --down-bg: #fdefee;
  --down-text: #b42318;
  --down-border: #f5c6c1;
  --down-dot: #ef4444;

  --shadow-card: 0 1px 2px rgba(11, 21, 36, 0.04),
    0 6px 20px rgba(11, 21, 36, 0.05);
  --shadow-lift: 0 2px 4px rgba(11, 21, 36, 0.05),
    0 14px 36px rgba(11, 21, 36, 0.11);
  --shadow-btn: 0 6px 18px rgba(14, 116, 144, 0.28);
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #060b14;
  --surface: #0d1522;
  --surface-2: #131d2e;
  --text: #eaf1f9;
  --text-2: #adbccf;
  --text-3: #8595ac;
  --border: #1c2839;
  --border-strong: #2b3c53;

  --accent: #2dd4bf;
  --accent-2: #a5b4fc;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --accent-ring: rgba(45, 212, 191, 0.45);

  --grad-brand: linear-gradient(115deg, #2dd4bf 0%, #22d3ee 48%, #818cf8 100%);
  --grad-btn: linear-gradient(115deg, #2dd4bf 0%, #22d3ee 48%, #8b9cf9 100%);
  --grad-text: linear-gradient(100deg, #40e0cb 0%, #38bdf8 45%, #a5b4fc 100%);
  --btn-ink: #04101c;

  --glow-a: rgba(45, 212, 191, 0.12);
  --glow-b: rgba(129, 140, 248, 0.11);
  --glow-c: rgba(56, 189, 248, 0.09);
  --grid-line: rgba(234, 241, 249, 0.04);
  --dot: rgba(234, 241, 249, 0.05);

  --glass: rgba(6, 11, 20, 0.62);
  --glass-border: rgba(234, 241, 249, 0.08);

  --tile-sleep-bg: rgba(129, 140, 248, 0.14);
  --tile-sleep-fg: #a5b4fc;
  --tile-body-bg: rgba(45, 212, 191, 0.13);
  --tile-body-fg: #2dd4bf;
  --tile-activity-bg: rgba(56, 189, 248, 0.13);
  --tile-activity-fg: #38bdf8;
  --tile-heart-bg: rgba(251, 113, 133, 0.12);
  --tile-heart-fg: #fb7185;

  --ok-bg: rgba(16, 185, 129, 0.12);
  --ok-text: #4ade80;
  --ok-border: rgba(74, 222, 128, 0.28);
  --ok-dot: #34d399;

  --down-bg: rgba(239, 68, 68, 0.12);
  --down-text: #f87171;
  --down-border: rgba(248, 113, 113, 0.3);
  --down-dot: #f87171;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lift: 0 2px 4px rgba(0, 0, 0, 0.4), 0 18px 44px rgba(0, 0, 0, 0.5);
  --shadow-btn: 0 6px 20px rgba(34, 211, 238, 0.2);
}

/* ---- Reset & base ---------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-h) + 1rem);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

img {
  max-width: 100%;
  display: block;
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.15rem 0.4rem;
  border-radius: 0.375rem;
  overflow-wrap: anywhere;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 0.25rem;
}

::selection {
  background: var(--accent-soft);
  color: var(--text);
}

.container {
  width: 100%;
  max-width: 70rem;
  margin: 0 auto;
  padding-inline: clamp(1.25rem, 4.5vw, 2.5rem);
}

.container-narrow {
  max-width: 50rem;
}

/* ---- Ambient backdrop (pure CSS: glows + grid + dots) ----------------------- */

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(42rem 30rem at 14% -6%, var(--glow-a), transparent 62%),
    radial-gradient(48rem 32rem at 88% -10%, var(--glow-b), transparent 64%),
    radial-gradient(36rem 26rem at 55% 4%, var(--glow-c), transparent 60%);
  transition: background 0.3s ease;
}

.backdrop::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 52rem;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 3rem 3rem;
  -webkit-mask-image: radial-gradient(64rem 38rem at 50% -8rem, #000 25%, transparent 76%);
  mask-image: radial-gradient(64rem 38rem at 50% -8rem, #000 25%, transparent 76%);
}

.backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(var(--dot) 1px, transparent 1.5px);
  background-size: 1.375rem 1.375rem;
  -webkit-mask-image: linear-gradient(#000 0%, transparent 55rem);
  mask-image: linear-gradient(#000 0%, transparent 55rem);
}

/* ---- Top bar ----------------------------------------------------------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--glass-border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

@supports ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  .topbar {
    background: var(--glass);
    -webkit-backdrop-filter: blur(14px) saturate(1.5);
    backdrop-filter: blur(14px) saturate(1.5);
  }
}

.topbar-inner {
  max-width: 70rem;
  margin: 0 auto;
  padding-inline: clamp(1.25rem, 4.5vw, 2.5rem);
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 0.65rem;
  background: var(--grad-brand);
  color: #fff;
  font-size: 1.05rem;
  box-shadow: var(--shadow-btn);
}

:root[data-theme="dark"] .brand-mark {
  color: #04101c;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .brand-mark {
    color: #04101c;
  }
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.015em;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.875rem;
  font-weight: 550;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease,
    background-color 0.3s ease;
}

.topbar-link:hover {
  color: var(--text);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.95rem;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease,
    background-color 0.3s ease;
}

.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

/* Icon swap: moon shown in light (switch to dark), sun shown in dark. */
.icon-moon {
  display: inline-block;
}

.icon-sun {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root .icon-moon {
    display: none;
  }

  :root .icon-sun {
    display: inline-block;
  }
}

:root[data-theme="light"] .icon-moon {
  display: inline-block;
}

:root[data-theme="light"] .icon-sun {
  display: none;
}

:root[data-theme="dark"] .icon-moon {
  display: none;
}

:root[data-theme="dark"] .icon-sun {
  display: inline-block;
}

/* ---- Hero ----------------------------------------------------------------------- */

.hero {
  padding-top: clamp(3.5rem, 9vw, 6.5rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.hero-inner {
  max-width: 56rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.eyebrow {
  margin-top: var(--space-5);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-h1);
  line-height: 1.03;
  letter-spacing: -0.032em;
  text-wrap: balance;
  margin: var(--space-4) 0 var(--space-5);
}

.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: var(--fs-sub);
  color: var(--text-2);
  max-width: 42rem;
  margin: 0 auto var(--space-6);
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease,
    color 0.2s ease, background-color 0.3s ease;
}

.btn-primary {
  background: var(--grad-btn);
  color: var(--btn-ink);
  box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.btn-ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text-2);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.btn-ghost .fa-patreon {
  color: var(--text-3);
  transition: color 0.2s ease;
}

.btn-ghost:hover .fa-patreon {
  color: var(--text);
}

.trust-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-3);
  margin-top: var(--space-6);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.82rem;
  font-weight: 550;
  color: var(--text-2);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.chip i {
  color: var(--accent);
  font-size: 0.78rem;
}

/* ---- Status badge ------------------------------------------------------------- */

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  background: var(--surface);
  color: var(--text-3);
  border: 1px solid var(--border);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--text-3);
  animation: pulse 1.6s ease-in-out infinite;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

.status-badge.operational {
  background: var(--ok-bg);
  color: var(--ok-text);
  border-color: var(--ok-border);
}

.status-badge.operational .status-dot {
  background: var(--ok-dot);
  box-shadow: 0 0 8px var(--ok-dot);
  animation: none;
}

.status-badge.down {
  background: var(--down-bg);
  color: var(--down-text);
  border-color: var(--down-border);
}

.status-badge.down .status-dot {
  background: var(--down-dot);
  animation: none;
}

/* ---- Works-with strip ------------------------------------------------------------ */

.works-with {
  padding-block: var(--space-5);
  border-block: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 55%, transparent);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.works-with-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3) var(--space-5);
}

.works-with-text {
  color: var(--text-2);
  font-size: 0.95rem;
  max-width: 34rem;
  text-wrap: pretty;
}

.client-badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.client-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.client-badge i {
  color: var(--accent);
}

/* ---- Sections --------------------------------------------------------------------- */

.section {
  padding-block: clamp(3rem, 7vw, 5.25rem) 0;
}

.section:last-of-type {
  padding-bottom: var(--space-6);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 750;
  font-size: var(--fs-h2);
  line-height: 1.12;
  letter-spacing: -0.025em;
  text-wrap: balance;
  margin-bottom: var(--space-3);
}

.section-lead {
  color: var(--text-2);
  font-size: var(--fs-lead);
  max-width: 44rem;
  margin-bottom: var(--space-6);
  text-wrap: pretty;
}

/* ---- How it works ------------------------------------------------------------------ */

.steps-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  counter-reset: none;
}

.step-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease,
    background-color 0.3s ease;
}

.step-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--border-strong);
}

.step-num {
  position: absolute;
  top: var(--space-4);
  right: var(--space-5);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: -0.03em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.4;
}

.step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.05rem;
  margin-bottom: var(--space-4);
}

.step-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h3);
  letter-spacing: -0.015em;
  margin-bottom: var(--space-2);
}

.step-card p {
  font-size: 0.925rem;
  color: var(--text-2);
}

/* ---- Features ------------------------------------------------------------------------ */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-5) var(--space-5) var(--space-6);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease,
    background-color 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--border-strong);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.9rem;
  height: 2.9rem;
  border-radius: var(--radius-md);
  font-size: 1.15rem;
  margin-bottom: var(--space-4);
}

.feature-icon-sleep {
  background: var(--tile-sleep-bg);
  color: var(--tile-sleep-fg);
}

.feature-icon-body {
  background: var(--tile-body-bg);
  color: var(--tile-body-fg);
}

.feature-icon-activity {
  background: var(--tile-activity-bg);
  color: var(--tile-activity-fg);
}

.feature-icon-heart {
  background: var(--tile-heart-bg);
  color: var(--tile-heart-fg);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h3);
  letter-spacing: -0.015em;
  margin-bottom: var(--space-2);
}

.feature-card p {
  font-size: 0.925rem;
  color: var(--text-2);
}

/* ---- Setup / tabs (CSS-only radio pattern) --------------------------------------------- */

.setup-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: clamp(1.25rem, 3.5vw, 2.25rem);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.tab-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.tab-list {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding: var(--space-1);
  border-radius: var(--radius-full);
  background: var(--surface-2);
  border: 1px solid var(--border);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.tab-label {
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-3);
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.tab-label:hover {
  color: var(--text);
}

#tab-claude:checked ~ .tab-list .label-claude,
#tab-chatgpt:checked ~ .tab-list .label-chatgpt,
#tab-other:checked ~ .tab-list .label-other {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-card);
}

#tab-claude:focus-visible ~ .tab-list .label-claude,
#tab-chatgpt:focus-visible ~ .tab-list .label-chatgpt,
#tab-other:focus-visible ~ .tab-list .label-other {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.tab-panel {
  display: none;
  padding-top: var(--space-5);
}

#tab-claude:checked ~ .panel-claude,
#tab-chatgpt:checked ~ .panel-chatgpt,
#tab-other:checked ~ .panel-other {
  display: block;
}

.tab-hint {
  font-size: 0.9rem;
  color: var(--text-3);
  margin-bottom: var(--space-4);
  max-width: 44rem;
}

.setup-steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: var(--space-3);
  color: var(--text-2);
  font-size: 0.95rem;
  max-width: 46rem;
}

.setup-steps li {
  counter-increment: step;
  position: relative;
  padding-left: 2.5rem;
  overflow-wrap: anywhere;
}

.setup-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.05rem;
  width: 1.65rem;
  height: 1.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
}

.setup-steps strong {
  color: var(--text);
  font-weight: 600;
}

.tab-note {
  margin-top: var(--space-4);
  font-size: 0.82rem;
  color: var(--text-3);
}

.code-block {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4) 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-2);
  overflow-x: auto;
  max-width: 34rem;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.code-block code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

/* ---- Demo -------------------------------------------------------------------------------- */

.demo-frame {
  display: block;
  /* The demo GIF is a portrait phone recording (320x696) — cap it at a
     phone-like width so the section doesn't balloon vertically. */
  max-width: 22.5rem;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: var(--space-2);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease,
    background-color 0.3s ease;
}

.demo-frame:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--border-strong);
}

.demo-img {
  width: 100%;
  border-radius: calc(var(--radius-xl) - var(--space-2));
}

/* ---- FAQ ---------------------------------------------------------------------------------- */

.faq-list {
  display: grid;
  gap: var(--space-3);
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color 0.2s ease, background-color 0.3s ease;
}

.faq-item[open] {
  border-color: var(--border-strong);
}

.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 1.1rem 1.4rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  background: var(--surface-2);
}

.faq-item summary h3 {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.faq-marker {
  position: relative;
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: var(--accent-soft);
}

.faq-marker::before,
.faq-marker::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.7rem;
  height: 2px;
  border-radius: 1px;
  background: var(--accent);
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease;
}

.faq-marker::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] .faq-marker::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.faq-answer {
  padding: 0 1.4rem 1.3rem;
  color: var(--text-2);
  font-size: 0.95rem;
  max-width: 46rem;
}

.faq-answer a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

/* ---- Footer --------------------------------------------------------------------------------- */

.footer {
  margin-top: var(--space-8);
  border-top: 1px solid var(--border);
  padding-block: var(--space-6);
  transition: border-color 0.3s ease;
}

.footer-inner {
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-links a {
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.footer-sep {
  width: 0.25rem;
  height: 0.25rem;
  border-radius: 50%;
  background: var(--border-strong);
}

.footer-note {
  margin: var(--space-4) auto 0;
  max-width: 40rem;
  font-size: 0.8rem;
  color: var(--text-3);
  text-wrap: pretty;
}

/* ---- Responsive ------------------------------------------------------------------------------- */

@media (max-width: 56rem) {
  .steps-grid {
    grid-template-columns: 1fr;
  }

  .works-with-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 40rem) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    max-width: 24rem;
  }

  .tab-list {
    display: flex;
    width: 100%;
  }

  .tab-label {
    flex: 1;
    text-align: center;
    white-space: normal;
  }

  .topbar-link-text {
    display: none;
  }

  .topbar-link {
    width: 2.4rem;
    height: 2.4rem;
    padding: 0;
    justify-content: center;
  }
}

/* ---- Reduced motion ----------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}