/* Doneberry — marketing site styles. Plain CSS, no build. Brand: berry-violet #7A1FB8,
   warm neutral gray ramp, calm/cozy voice. Tokens mirror src/design/tokens.ts. */

:root {
  --berry: #7A1FB8;
  --berry-bright: #9A52E8;
  --berry-soft: #EFE4FB;

  --bg: #ffffff;
  --surface: #f7f7f5;       /* gray50  */
  --surface-2: #efeeec;     /* gray100 */
  --border: #e4e3df;        /* gray200 */
  --text: #161512;          /* gray900 */
  --text-2: #5c5b55;        /* gray600 */
  --text-3: #807f78;        /* gray500 */
  --success: #30a46c;
  --on-accent: #ffffff;

  --radius: 14px;
  --radius-lg: 22px;
  --maxw: 1080px;
  --shadow: 0 1px 2px rgba(22, 21, 18, .04), 0 8px 28px rgba(22, 21, 18, .06);
  --shadow-berry: 0 10px 30px rgba(122, 31, 184, .22);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica,
    Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --berry: #9a52e8;
    --berry-soft: #2a2533;
    --bg: #161512;          /* gray900 */
    --surface: #262522;     /* gray800 */
    --surface-2: #3e3d39;   /* gray700 */
    --border: #3e3d39;      /* gray700 */
    --text: #f7f7f5;        /* gray50  */
    --text-2: #a8a7a0;      /* gray400 */
    --text-3: #807f78;      /* gray500 */
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 28px rgba(0,0,0,.4);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--berry); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.02em;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand .logo { width: 30px; height: 30px; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { color: var(--text-2); font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--text); text-decoration: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .08s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--berry); color: var(--on-accent); box-shadow: var(--shadow-berry); }
.btn-primary:hover { background: var(--berry-bright); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface); }
.btn-sm { padding: 9px 16px; font-size: 14px; }

/* ---------- hero ---------- */
.hero { padding: 84px 0 56px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--berry);
  background: var(--berry-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(34px, 5.2vw, 56px);
  line-height: 1.05;
  letter-spacing: -.03em;
  margin: 0 0 18px;
  font-weight: 800;
}
.hero h1 .accent { color: var(--berry); }
.hero p.lede {
  font-size: clamp(17px, 2.1vw, 20px);
  color: var(--text-2);
  margin: 0 0 30px;
  max-width: 30ch;
}
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.cta-note { font-size: 13px; color: var(--text-3); margin-top: 14px; }

/* ---------- product mock ---------- */
.mock {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.mock-top {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.mock-dot { width: 11px; height: 11px; border-radius: 50%; background: var(--border); }
.mock-title { margin-left: 10px; font-weight: 700; font-size: 15px; letter-spacing: -.01em; }
.mock-body { padding: 10px 12px 16px; }
.task {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 10px;
  border-radius: 12px;
}
.task + .task { border-top: 1px solid var(--surface-2); }
.task:hover { background: var(--surface); }
.check {
  flex: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid var(--border);
  margin-top: 1px;
}
.task.done .check {
  background: var(--berry);
  border-color: var(--berry);
  position: relative;
}
.task.done .check::after {
  content: "";
  position: absolute;
  left: 6px; top: 2px;
  width: 6px; height: 11px;
  border: solid #fff;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}
.task .t-main { flex: 1; min-width: 0; }
.task .t-title { font-weight: 600; font-size: 15px; }
.task.done .t-title { color: var(--text-3); text-decoration: line-through; }
.task .t-meta { font-size: 12.5px; color: var(--text-3); margin-top: 2px; display: flex; gap: 8px; flex-wrap: wrap; }
.pill { font-size: 11px; font-weight: 600; padding: 2px 9px; border-radius: 999px; }
.pill.ripe { color: var(--berry); background: var(--berry-soft); }
.pill.label { color: var(--text-2); background: var(--surface-2); }

/* ---------- sections ---------- */
section { padding: 64px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  letter-spacing: -.02em;
  margin: 0 0 12px;
  font-weight: 800;
}
.section-head p { color: var(--text-2); font-size: 17px; margin: 0; }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.feature .ic {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--berry-soft);
  margin-bottom: 16px;
  font-size: 22px;
}
.feature h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -.01em; }
.feature p { margin: 0; color: var(--text-2); font-size: 15px; }

/* ---------- pro band ---------- */
.pro {
  background: linear-gradient(135deg, var(--berry), var(--berry-bright));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
}
.pro h2 { font-size: clamp(26px, 3.4vw, 34px); margin: 0 0 12px; letter-spacing: -.02em; }
.pro p { color: rgba(255,255,255,.9); font-size: 17px; max-width: 52ch; margin: 0 auto 26px; }
.pro .btn-primary { background: #fff; color: var(--berry); box-shadow: 0 10px 30px rgba(0,0,0,.18); }
.pro .btn-primary:hover { background: #f4f4f2; }
.pro ul {
  list-style: none; padding: 0; margin: 0 auto 28px;
  display: inline-flex; gap: 26px; flex-wrap: wrap; justify-content: center;
}
.pro li { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.pro li::before { content: "✓"; font-weight: 800; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 56px;
  margin-top: 32px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-brand { max-width: 280px; }
.footer-brand p { color: var(--text-3); font-size: 14px; margin: 12px 0 0; }
.footer-links { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); margin: 0 0 14px; }
.footer-col a { display: block; color: var(--text-2); font-size: 15px; margin-bottom: 10px; }
.footer-col a:hover { color: var(--text); text-decoration: none; }
.copyright { color: var(--text-3); font-size: 13px; margin-top: 40px; }

/* ---------- legal / content pages ---------- */
.doc { padding: 56px 0 24px; }
.doc-inner { max-width: 760px; margin: 0 auto; }
.doc h1 { font-size: clamp(30px, 4vw, 42px); letter-spacing: -.02em; margin: 0 0 8px; }
.doc .updated { color: var(--text-3); font-size: 14px; margin: 0 0 36px; }
.doc h2 { font-size: 22px; letter-spacing: -.01em; margin: 40px 0 12px; }
.doc h3 { font-size: 17px; margin: 26px 0 8px; }
.doc p, .doc li { color: var(--text-2); font-size: 16px; }
.doc ul { padding-left: 22px; }
.doc li { margin-bottom: 8px; }
.doc strong { color: var(--text); }
.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--berry);
  border-radius: 10px;
  padding: 16px 18px;
  margin: 24px 0;
  font-size: 15px;
}
.callout p { margin: 0; }

/* support FAQ */
.faq { max-width: 760px; margin: 0 auto; }
details.qa {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px 18px;
  margin-bottom: 12px;
  background: var(--surface);
}
details.qa summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary::after { content: "+"; color: var(--berry); font-size: 22px; font-weight: 400; }
details.qa[open] summary::after { content: "–"; }
details.qa .a { padding: 0 0 16px; color: var(--text-2); }
details.qa .a p { margin: 0 0 10px; }

.contact-card {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 560px;
  margin: 0 auto 48px;
}
.contact-card .email { font-size: 22px; font-weight: 700; letter-spacing: -.01em; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero p.lede { max-width: none; }
  .features { grid-template-columns: 1fr 1fr; }
  .nav { gap: 18px; }
  .nav .nav-link { display: none; }
}
@media (max-width: 560px) {
  .features { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 40px; }
  .pro { padding: 40px 24px; }
  .footer-links { gap: 32px; }
}