/* Daybook — daybook.samandar.dev. Paper, ink, and one sage accent, like the app. */

:root {
  --paper: #faf9f6;
  --surface: #ffffff;
  --sunk: #f3f2ee;
  --ink: #1b1a18;
  --ink-2: #3d3b37;
  --ink-3: #55534e;
  --muted: #706d67;
  --line: #ecebe6;
  --accent: #5f9470;
  --accent-soft: #e7efe9;
  --brand-ink: #22211f;
  --brand-paper: #f4eee3;
  --shadow: 0 1px 2px rgba(27, 26, 24, 0.04), 0 12px 32px rgba(27, 26, 24, 0.07);
  --radius: 22px;
  --max: 1120px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #141413;
    --surface: #1e1d1b;
    --sunk: #262523;
    --ink: #eeede9;
    --ink-2: #cfccc5;
    --ink-3: #b5b2ab;
    --muted: #8e8b85;
    --line: #2a2926;
    --accent: #6fa680;
    --accent-soft: #1f2a22;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.6 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; display: block; }

.wrap { width: min(var(--max), 100% - 40px); margin-inline: auto; }

/* ── Header ─────────────────────────────────────────── */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
}
.top.scrolled { border-bottom-color: var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 19px; letter-spacing: -0.02em; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }

.nav { display: flex; gap: 26px; font-size: 15px; }
.nav a { color: var(--ink-3); text-decoration: none; }
.nav a:hover { color: var(--ink); }

/* ── Buttons & store badges ─────────────────────────── */

.stores { display: flex; flex-wrap: wrap; gap: 12px; }
.store {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 20px 0 16px;
  border-radius: 26px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  line-height: 1.1;
  transition: transform 0.15s ease;
}
.store:hover { transform: translateY(-1px); text-decoration: none; }
.store svg { width: 22px; height: 22px; flex: none; fill: currentColor; }
.store small { display: block; font-size: 11px; opacity: 0.7; }
.store strong { display: block; font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
.store.soon { background: var(--sunk); color: var(--ink-3); pointer-events: none; }

/* ── Hero ───────────────────────────────────────────── */

.hero { padding: 72px 0 40px; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent); }
h1 { font-size: clamp(42px, 6vw, 68px); line-height: 1.02; letter-spacing: -0.045em; margin: 16px 0 18px; font-weight: 700; }
.lede { font-size: clamp(18px, 2vw, 21px); color: var(--ink-3); max-width: 30ch; margin: 0 0 32px; }
.fine { font-size: 13.5px; color: var(--muted); margin-top: 16px; }

/* Phone frames hold the screenshots (swap the files in /assets/shots). */
.phones { position: relative; height: 600px; }
.phone {
  position: absolute;
  width: 270px;
  aspect-ratio: 440 / 956;
  border-radius: 44px;
  padding: 10px;
  background: var(--brand-ink);
  box-shadow: var(--shadow), 0 40px 80px rgba(27, 26, 24, 0.18);
}
.phone img, .phone .shot { width: 100%; height: 100%; border-radius: 34px; object-fit: cover; object-position: top; background: var(--sunk); }
.phone.back { right: 6%; top: 40px; transform: rotate(5deg); }
.phone.front { left: 4%; top: 0; transform: rotate(-3deg); z-index: 1; }

/* ── Sections ───────────────────────────────────────── */

section { padding: 80px 0; }
.section-head { max-width: 640px; margin-bottom: 44px; }
h2 { font-size: clamp(30px, 4vw, 44px); letter-spacing: -0.035em; line-height: 1.08; margin: 0 0 14px; font-weight: 700; }
.section-head p { color: var(--ink-3); font-size: 18.5px; margin: 0; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 28px;
  box-shadow: 0 1px 2px rgba(27, 26, 24, 0.03);
}
.card .icon { width: 42px; height: 42px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 18px; }
.card .icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.card h3 { font-size: 19px; letter-spacing: -0.015em; margin: 0 0 6px; }
.card p { margin: 0; color: var(--ink-3); font-size: 15.5px; line-height: 1.55; }

/* Wide feature rows: text + screenshot. */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 40px 0; }
.split.flip .split-text { order: 2; }
.split-text h3 { font-size: clamp(26px, 3vw, 34px); letter-spacing: -0.03em; line-height: 1.12; margin: 0 0 14px; }
.split-text p { color: var(--ink-3); font-size: 17.5px; margin: 0 0 14px; }
.split-text ul { margin: 0; padding: 0; list-style: none; color: var(--ink-2); }
.split-text li { padding: 7px 0 7px 28px; position: relative; font-size: 16px; }
.split-text li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 12px; height: 7px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }
.split-media { display: grid; place-items: center; background: var(--sunk); border-radius: 28px; padding: 40px 0; min-height: 520px; }
.split-media .phone { position: relative; transform: none; }

.devices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.device { text-align: left; }
.device .frame { background: var(--sunk); border-radius: var(--radius); aspect-ratio: 4 / 3; display: grid; place-items: center; overflow: hidden; margin-bottom: 14px; }
.device .frame img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.device .frame .fold-art { width: 100%; height: 100%; font-family: inherit; }
.device h3 { margin: 0 0 4px; font-size: 18px; }
.device p { margin: 0; color: var(--ink-3); font-size: 15px; }

.privacy-band { background: var(--brand-ink); color: #f5f4f0; border-radius: 32px; padding: 64px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.privacy-band h2 { color: #f5f4f0; }
.privacy-band p { color: #c9c6bf; font-size: 18px; margin: 0 0 18px; }
.privacy-band a { color: #a9d1b5; }
.privacy-list { display: grid; gap: 12px; }
.privacy-list div { display: flex; gap: 12px; align-items: center; background: rgba(245, 244, 240, 0.06); border: 1px solid rgba(245, 244, 240, 0.1); border-radius: 16px; padding: 14px 18px; font-size: 16px; }
.privacy-list b { color: #a9d1b5; font-weight: 600; }

.faq { max-width: 760px; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--ink-3); margin: 10px 0 0; }

.cta { text-align: center; padding: 96px 0 104px; }
.cta img { width: 72px; height: 72px; border-radius: 17px; margin: 0 auto 22px; box-shadow: var(--shadow); }
.cta .stores { justify-content: center; margin-top: 28px; }

/* ── Footer ─────────────────────────────────────────── */

footer { border-top: 1px solid var(--line); padding: 36px 0 48px; font-size: 14.5px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; align-items: center; }
footer nav { display: flex; flex-wrap: wrap; gap: 22px; }
footer a { color: var(--ink-3); text-decoration: none; }
footer a:hover { color: var(--ink); }

/* ── Legal & support pages ──────────────────────────── */

.doc { max-width: 720px; padding: 56px 0 88px; }
.doc h1 { font-size: clamp(36px, 5vw, 48px); margin: 0 0 6px; }
.doc .meta { color: var(--muted); font-size: 15px; margin: 0 0 36px; }
.doc h2 { font-size: 23px; letter-spacing: -0.02em; margin: 40px 0 10px; }
.doc p, .doc li { color: var(--ink-2); font-size: 16.5px; }
.doc ul { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc strong { color: var(--ink); }
.back { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; color: var(--ink-3); text-decoration: none; margin-bottom: 28px; }
.back:hover { color: var(--ink); }

.contact-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; margin: 8px 0 28px; }
.contact-card a.mail { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; text-decoration: none; }

/* ── Small screens ──────────────────────────────────── */

@media (max-width: 920px) {
  .hero, .split, .privacy-band { grid-template-columns: 1fr; }
  .hero { padding-top: 40px; gap: 24px; }
  .phones { height: 520px; }
  .phone { width: 230px; }
  .features, .devices { grid-template-columns: 1fr 1fr; }
  .split.flip .split-text { order: 0; }
  .split-media { min-height: 0; }
  .privacy-band { padding: 40px 28px; }
  .nav { display: none; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  section { padding: 56px 0; }
  .features, .devices { grid-template-columns: 1fr; }
  .phones { height: 440px; }
  .phone { width: 190px; border-radius: 34px; padding: 8px; }
  .phone img, .phone .shot { border-radius: 27px; }
  .phone.back { right: 0; }
  .phone.front { left: 0; }
}

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