/* ============================================================================
   Recall — recall-pro.net design system
   Shared by index.html (landing), privacy.html, terms.html, documentation.html
   Refined editorial brand: Syne display + DM Mono labels, warm ink/cream
   palette, teal accent. Supports light + dark via prefers-color-scheme.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Mono:ital,wght@0,400;0,500;1,400&display=swap');

/* ── Tokens ──────────────────────────────────────────────────────────────── */
:root {
  --syne: 'Syne', system-ui, -apple-system, sans-serif;
  --mono: 'DM Mono', ui-monospace, 'SFMono-Regular', monospace;
  --body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --ink:      #1a1916;   /* near-black, warm */
  --ink-2:    #2e2d29;
  --surface:  #ffffff;
  --bg:       #f7f6f2;   /* warm cream */
  --bg-2:     #efece4;
  --bdr:      #e8e6df;
  --bdr-2:    #d8d4c8;
  --text:     #26251f;
  --muted:    #6e6c64;
  --hint:     #9b988e;

  --teal:     #1D9E75;
  --teal-d:   #0F6E56;
  --teal-l:   #e3f4ee;

  /* category accent chips (mirrors the reader app) */
  --c-research-bg:#E1F5EE; --c-research-fg:#085041;
  --c-shopping-bg:#FAEEDA; --c-shopping-fg:#633806;
  --c-reading-bg:#FAECE7;  --c-reading-fg:#712B13;
  --c-news-bg:#FDE7E7;     --c-news-fg:#B42318;
  --c-work-bg:#E6F1FB;     --c-work-fg:#0C447C;
  --c-social-bg:#EEEDFE;   --c-social-fg:#3C3489;

  --maxw: 1120px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(26,25,22,.04), 0 2px 8px rgba(26,25,22,.04);
  --shadow:    0 4px 16px rgba(26,25,22,.06), 0 18px 48px rgba(26,25,22,.08);
  --shadow-lg: 0 8px 30px rgba(26,25,22,.10), 0 30px 80px rgba(26,25,22,.14);
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface:#1c1c1a;
    --bg:     #121211;
    --bg-2:   #1a1a18;
    --bdr:    #2e2d29;
    --bdr-2:  #3d3c37;
    --text:   #ece9e1;
    --muted:  #a4a198;
    --hint:   #6c6960;
    --teal-l: #0c3a2d;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
    --shadow:    0 4px 16px rgba(0,0,0,.35), 0 18px 48px rgba(0,0,0,.4);
    --shadow-lg: 0 8px 30px rgba(0,0,0,.45), 0 30px 80px rgba(0,0,0,.55);
    --c-research-bg:#04342C; --c-research-fg:#9FE1CB;
    --c-shopping-bg:#412402; --c-shopping-fg:#FAC775;
    --c-reading-bg:#4A1B0C;  --c-reading-fg:#F0997B;
    --c-news-bg:#4A0E0E;     --c-news-fg:#F2A8A2;
    --c-work-bg:#042C53;     --c-work-fg:#85B7EB;
    --c-social-bg:#26215C;   --c-social-fg:#AFA9EC;
  }
}

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

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

body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--teal-d); text-decoration: none; }
a:hover { color: var(--teal); }

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

h1, h2, h3, h4 { font-family: var(--syne); color: var(--ink); line-height: 1.1; letter-spacing: -0.02em; font-weight: 700; }
@media (prefers-color-scheme: dark) { h1, h2, h3, h4 { color: var(--text); } }

::selection { background: var(--teal); color: #fff; }

/* ── Layout helpers ──────────────────────────────────────────────────────── */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.center { text-align: center; }
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal-d);
  margin-bottom: 14px;
}
.section-title { font-size: clamp(28px, 4vw, 40px); }
.section-lead {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--muted);
  max-width: 620px;
  margin: 16px auto 0;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-family: var(--syne);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 22px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease, color .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn svg { width: 18px; height: 18px; }

.btn-primary { background: var(--teal); color: #fff; box-shadow: 0 6px 18px rgba(29,158,117,.30); }
.btn-primary:hover { background: var(--teal-d); color: #fff; box-shadow: 0 10px 24px rgba(29,158,117,.36); }

.btn-dark { background: var(--ink); color: #f0ede6; }
.btn-dark:hover { background: #000; color: #fff; }

.btn-ghost { background: transparent; color: var(--text); border-color: var(--bdr-2); }
.btn-ghost:hover { background: var(--bg-2); color: var(--text); border-color: var(--muted); }

/* on dark backgrounds */
.on-dark .btn-ghost { color: rgba(240,237,230,.92); border-color: rgba(240,237,230,.22); }
.on-dark .btn-ghost:hover { background: rgba(240,237,230,.08); color: #fff; border-color: rgba(240,237,230,.4); }

/* ── Brand mark ──────────────────────────────────────────────────────────── */
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--syne); font-weight: 700; font-size: 19px; letter-spacing: -.02em; color: var(--ink); }
@media (prefers-color-scheme: dark) { .brand { color: var(--text); } }
.brand:hover { color: var(--ink); }
@media (prefers-color-scheme: dark) { .brand:hover { color: var(--text); } }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--ink); color: var(--teal);
  display: grid; place-items: center; flex-shrink: 0;
}
.brand-mark svg { width: 20px; height: 20px; }
.on-dark .brand, .on-dark .brand:hover { color: #f0ede6; }
.on-dark .brand-mark { background: rgba(240,237,230,.1); border: 1px solid rgba(240,237,230,.15); }

/* ── Site header / nav ───────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--bdr);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a.navlink { color: var(--muted); font-size: 15px; font-weight: 500; font-family: var(--body); }
.site-nav a.navlink:hover { color: var(--ink); }
@media (prefers-color-scheme: dark) { .site-nav a.navlink:hover { color: var(--text); } }
.nav-cta { display: flex; align-items: center; gap: 12px; }
@media (max-width: 760px) {
  .site-nav .navlink { display: none; }
  .nav-cta .btn-ghost { display: none; }
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.site-footer { background: var(--ink); color: rgba(240,237,230,.7); padding: 64px 0 40px; }
.site-footer a { color: rgba(240,237,230,.7); }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .brand { color: #f0ede6; margin-bottom: 14px; }
.footer-brand .brand-mark { background: rgba(240,237,230,.1); border: 1px solid rgba(240,237,230,.15); }
.footer-tag { font-size: 14px; color: rgba(240,237,230,.55); max-width: 260px; line-height: 1.6; }
.footer-col h4 { color: #f0ede6; font-size: 13px; font-family: var(--mono); font-weight: 500; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 16px; }
.footer-col a { display: block; font-size: 15px; margin-bottom: 10px; }
.footer-bottom {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(240,237,230,.12);
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: rgba(240,237,230,.5);
}
.footer-bottom .pill {
  font-family: var(--mono); font-size: 12px;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px; border-radius: 30px;
  background: rgba(240,237,230,.06); border: 1px solid rgba(240,237,230,.12);
}
.footer-bottom .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); }
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}

/* ── Legal / docs article pages ──────────────────────────────────────────── */
.legal { max-width: 800px; margin: 0 auto; padding: 56px 24px 96px; }
.legal-head { margin-bottom: 36px; padding-bottom: 28px; border-bottom: 1px solid var(--bdr); }
.legal-head h1 { font-size: clamp(30px, 5vw, 44px); }
.legal-meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px 28px; margin-top: 24px;
}
.legal-meta div { font-size: 14px; }
.legal-meta dt { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--hint); margin-bottom: 2px; }
.legal-meta dd { color: var(--text); font-weight: 500; }
.legal h2 {
  font-size: 23px; margin: 44px 0 12px; padding-top: 8px;
  scroll-margin-top: 84px;
}
.legal h3 { font-size: 17px; margin: 26px 0 6px; color: var(--ink-2); font-family: var(--syne); }
@media (prefers-color-scheme: dark) { .legal h3 { color: var(--text); } }
.legal p, .legal li { font-size: 16px; color: var(--text); }
.legal p { margin: 10px 0; }
.legal ul, .legal ol { padding-left: 24px; margin: 10px 0; }
.legal li { margin: 6px 0; }
.legal strong { color: var(--ink); }
@media (prefers-color-scheme: dark) { .legal strong { color: var(--text); } }
.legal a { color: var(--teal-d); text-decoration: underline; text-underline-offset: 2px; }
.legal hr { border: none; border-top: 1px solid var(--bdr); margin: 36px 0; }
.legal-note {
  background: var(--surface); border: 1px solid var(--bdr); border-left: 3px solid var(--teal);
  border-radius: 10px; padding: 16px 18px; margin: 22px 0; font-size: 15px; color: var(--muted);
}
.legal-toc {
  background: var(--surface); border: 1px solid var(--bdr); border-radius: var(--radius);
  padding: 20px 22px; margin: 0 0 32px;
}
.legal-toc h4 { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--hint); margin-bottom: 12px; font-weight: 500; }
.legal-toc ol { columns: 2; column-gap: 32px; padding-left: 18px; margin: 0; }
.legal-toc li { margin: 5px 0; font-size: 14px; }
@media (max-width: 600px) { .legal-toc ol { columns: 1; } }

/* Documentation page (legacy .toc / .note / code classes used in the body) */
.legal code { font-family: var(--mono); font-size: .9em; background: var(--bg-2); border: 1px solid var(--bdr); padding: 1px 6px; border-radius: 5px; color: var(--ink-2); }
@media (prefers-color-scheme: dark) { .legal code { color: var(--text); } }
.legal .toc { background: var(--surface); border: 1px solid var(--bdr); border-radius: var(--radius); padding: 20px 24px; margin: 8px 0 32px; }
.legal .toc strong { display: block; font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--hint); margin-bottom: 12px; font-weight: 500; }
.legal .toc a { display: block; padding: 4px 0; text-decoration: none; color: var(--teal-d); font-size: 15px; }
.legal .toc a:hover { color: var(--teal); }
.legal .note { background: var(--teal-l); border: 1px solid color-mix(in srgb, var(--teal) 30%, transparent); border-radius: 12px; padding: 16px 18px; margin: 20px 0; font-size: 15px; color: var(--text); }
.legal .note strong { color: var(--ink); }
@media (prefers-color-scheme: dark) { .legal .note strong { color: var(--text); } }

/* shared utility */
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }