/*
 * Ponticello product site — 1.8.
 *
 * The same tokens as src/theme/tokens.ts: iOS grouped grounds, white (or
 * near-black) cards, one indigo accent. Archivo is the brand face for
 * headlines; body text is the reader's system face, which on an Apple device
 * is SF — the face the app itself uses there.
 */

:root {
  --bg: #f2f2f7;
  --card: #ffffff;
  --fill: rgba(118, 118, 128, 0.12);
  --ink: #111114;
  --dim: #636369;
  --line: rgba(60, 60, 67, 0.14);
  --accent: #4638d6;
  --on-accent: #ffffff;
  --accent-wash: rgba(70, 56, 214, 0.10);
  --glow: #7a6cff;
  --deep: #2a1c9e;
  --bezel: #1b1a22;
  --shadow: 0 24px 60px rgba(30, 20, 90, 0.16), 0 2px 8px rgba(0, 0, 0, 0.06);
  --radius: 22px;
  --display: Archivo, ui-sans-serif, system-ui, sans-serif;
  --text: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0a14;
    --card: #18171f;
    --fill: rgba(120, 120, 136, 0.24);
    --ink: #f5f5f7;
    --dim: #9d9ca8;
    --line: rgba(235, 235, 245, 0.12);
    --accent: #9c95ff;
    --on-accent: #0b0a14;
    --accent-wash: rgba(156, 149, 255, 0.16);
    --bezel: #2a2933;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.04);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--text);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, video { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-underline-offset: 3px; }

main, .nav, .footer { width: min(1180px, 100% - 32px); margin-inline: auto; }

h1, h2, h3 { font-family: var(--display); font-weight: 800; letter-spacing: -0.02em; line-height: 1.08; margin: 0; text-wrap: balance; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
h3 { font-size: clamp(1.35rem, 2.2vw, 1.7rem); letter-spacing: -0.015em; }
p { margin: 0; }

.kicker {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

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

/* ── Navigation: a glass bar ─────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 12px;
  padding: 8px 8px 8px 16px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--card) 72%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08), inset 0 0 0 1px var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.1rem;
}

.brand img { border-radius: 9px; }

.nav nav { display: flex; align-items: center; gap: 4px; }

.nav nav a:not(.button) {
  color: var(--ink);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav nav a:not(.button):hover { background: var(--fill); }

/* ── Buttons: capsules, as in the app ────────────────────────────────────── */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.button:hover { filter: brightness(1.08); }
.button:active { transform: scale(0.97); }
.button:focus-visible, .nav a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.button.ghost { background: var(--fill); color: var(--ink); }
.button.small { min-height: 38px; padding: 0 16px; font-size: 0.92rem; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

/* ── The device: an iPhone Duo inner display, 1398 × 2034 ────────────────── */
.device {
  position: relative;
  aspect-ratio: 1398 / 2034;
  padding: 2.4%;
  border-radius: 9% / 6.2%;
  background: var(--bezel);
  box-shadow: var(--shadow), inset 0 0 0 1.5px rgba(255, 255, 255, 0.10);
}

.device > img, .device > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 7.2% / 5%;
  background: var(--bg);
}

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  padding: clamp(48px, 8vw, 96px) 0 64px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 10px;
  border-radius: 999px;
  background: var(--accent-wash);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 22px;
}

.pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-wash);
}

.hero h1 { font-size: clamp(2.6rem, 5.6vw, 4.6rem); letter-spacing: -0.035em; text-wrap: initial; }

.lede { margin-top: 22px; font-size: 1.15rem; color: var(--dim); max-width: 36em; text-wrap: pretty; }
.lede strong { color: var(--ink); }

.facts {
  list-style: none;
  padding: 0;
  margin: 36px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 520px;
}

.facts li {
  background: var(--card);
  border-radius: 18px;
  padding: 14px 16px;
  box-shadow: inset 0 0 0 1px var(--line);
}

.facts strong {
  display: block;
  font-family: ui-rounded, var(--display);
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1.1;
}

.facts span { font-size: 0.86rem; color: var(--dim); }

.hero-device {
  margin: 0;
  justify-self: center;
  width: min(380px, 100%);
  position: relative;
}

.hero-device::before {
  content: "";
  position: absolute;
  inset: 8% -18% -4%;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--glow) 38%, transparent), transparent);
  filter: blur(30px);
  z-index: -1;
}

.hero-device figcaption { margin-top: 14px; text-align: center; font-size: 0.82rem; color: var(--dim); }

/* ── The mark ────────────────────────────────────────────────────────────── */
.idea {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 32px;
  align-items: center;
  background: var(--card);
  border-radius: 32px;
  padding: clamp(24px, 4vw, 44px);
  box-shadow: inset 0 0 0 1px var(--line);
}

.idea .mark { width: 170px; height: 170px; border-radius: 28px; box-shadow: var(--shadow); }
.idea h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 14px; }
.idea p:last-child { color: var(--dim); max-width: 60em; }

/* ── Sections and features ───────────────────────────────────────────────── */
.section-head { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.section-lede { margin-top: 14px; color: var(--dim); font-size: 1.1rem; }

.features, .design, .more, .principles { padding-top: clamp(72px, 10vw, 120px); }

.feature {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  margin-bottom: clamp(56px, 8vw, 96px);
}

.feature.reverse .copy { order: 2; }
.feature .copy p:not(.kicker) { margin-top: 14px; color: var(--dim); font-size: 1.05rem; }

.devices { display: grid; gap: clamp(12px, 2vw, 22px); align-items: end; justify-content: center; }
.devices.single { grid-template-columns: minmax(0, 320px); }
.devices.duo-pair { grid-template-columns: repeat(2, minmax(0, 280px)); }
.devices.trio { grid-template-columns: repeat(3, minmax(0, 230px)); }
.devices.trio .device:nth-child(2) { transform: translateY(-24px); }

/* ── Design ──────────────────────────────────────────────────────────────── */
.design-points {
  list-style: none;
  padding: 0;
  margin: 0 0 56px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.design-points li {
  background: var(--card);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: inset 0 0 0 1px var(--line);
}

.design-points h3 { font-size: 1.15rem; margin-bottom: 8px; }
.design-points p { color: var(--dim); font-size: 0.95rem; }

.design-video {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 460px);
  justify-content: center;
  align-items: center;
  gap: clamp(28px, 6vw, 72px);
  margin-bottom: 72px;
}

.design-video-copy p:not(.kicker) { margin-top: 14px; color: var(--dim); font-size: 1.05rem; }

.themes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 300px));
  justify-content: center;
  gap: clamp(14px, 3vw, 36px);
}

.themes figure { margin: 0; }
.themes figcaption, .strip figcaption { margin-top: 14px; text-align: center; color: var(--dim); font-size: 0.92rem; }
.themes figcaption { font-family: var(--display); font-weight: 800; color: var(--ink); font-size: 1rem; }

/* ── Strip gallery ───────────────────────────────────────────────────────── */
.strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(220px, 250px);
  gap: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 8px 4px 28px;
  margin-inline: -4px;
  scrollbar-width: thin;
}

.strip figure { margin: 0; scroll-snap-align: start; }
.strip:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 12px; }

/* ── Principles ──────────────────────────────────────────────────────────── */
.principles ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.principles li {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  color: var(--dim);
  box-shadow: inset 0 0 0 1px var(--line);
}

.principles li strong { display: block; color: var(--ink); font-family: var(--display); font-size: 1.1rem; margin-bottom: 8px; }

/* ── Open source ─────────────────────────────────────────────────────────── */
.open-source {
  margin-top: clamp(72px, 10vw, 120px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: clamp(28px, 5vw, 56px);
  border-radius: 36px;
  background: linear-gradient(160deg, var(--glow), var(--deep));
  color: #ffffff;
}

.open-source .kicker { color: rgba(255, 255, 255, 0.8); }
.open-source h2 { margin-bottom: 14px; }
.open-source p:not(.kicker) { color: rgba(255, 255, 255, 0.86); }
.open-source .button { background: #ffffff; color: var(--deep); }
.open-source .button.ghost { background: rgba(255, 255, 255, 0.16); color: #ffffff; }

.code {
  margin: 0;
  padding: 22px 24px;
  border-radius: 20px;
  background: rgba(8, 6, 30, 0.55);
  color: #e8e6ff;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.7;
  overflow-x: auto;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  padding: 64px 0 48px;
  text-align: center;
  color: var(--dim);
  font-size: 0.95rem;
}

.footer .wordmark { margin: 0 auto 16px; width: 200px; }
.footer p + p { margin-top: 8px; }
.fine { font-size: 0.82rem; max-width: 640px; margin-inline: auto; }

.dark-only { display: none; }
@media (prefers-color-scheme: dark) {
  .light-only { display: none; }
  .dark-only { display: block; }
}

/* ── Narrow screens ──────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .hero, .feature, .open-source, .design-video { grid-template-columns: 1fr; }
  .design-video .device { width: min(300px, 80%); margin-inline: auto; }
  .feature.reverse .copy { order: 0; }
  .design-points { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .principles ul { grid-template-columns: 1fr; }
  .hero-device { width: min(320px, 80%); }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav nav a:not(.button) { display: none; }
  .idea { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .facts { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .facts li { padding: 12px; }
  .facts strong { font-size: 1.35rem; }
  .design-points { grid-template-columns: 1fr; }
  .devices.trio { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .devices.trio .device:nth-child(2) { transform: none; }
  .devices.duo-pair { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .themes { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .device { padding: 3%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}