/*
 * BookLoop website — one stylesheet for every page.
 *
 * Colours are the app's design tokens (packages/bookloop_theme
 * bookloop_colors.dart), light and dark, so the site and the app read as
 * one product. Type is Poppins (text) and Montserrat (prices), as in the app.
 */

@font-face { font-family: "Poppins"; font-weight: 400; font-style: normal; font-display: swap; src: url("../fonts/poppins-regular.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-weight: 500; font-style: normal; font-display: swap; src: url("../fonts/poppins-medium.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-weight: 600; font-style: normal; font-display: swap; src: url("../fonts/poppins-semibold.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-weight: 700; font-style: normal; font-display: swap; src: url("../fonts/poppins-bold.woff2") format("woff2"); }
@font-face { font-family: "Montserrat"; font-weight: 700; font-style: normal; font-display: swap; src: url("../fonts/montserrat-bold.woff2") format("woff2"); }

/* ── Tokens ─────────────────────────────────────────────────────────────── */

:root {
  color-scheme: light dark;

  --brand: #6C4FA9;
  --brand-pressed: #5B3E94;
  --brand-subtle: #EEEAFB;
  --on-brand-subtle: #4D2E84;
  --text-brand: #6C4FA9;

  --accent: #D8B4A0;
  --accent-strong: #9A5530;
  --accent-subtle: #FBEFE7;

  --bg: #F6F5F9;
  --bg-subtle: #FBFAFD;
  --bg-muted: #EEECF3;
  --surface: #FFFFFF;
  --surface-2: #FFFFFF;

  --heading: #17132A;
  --text: #24212D;
  --text-2: #57536A;
  --text-3: #6E6A7E;

  --border: #DDD9E5;
  --border-subtle: #ECE9F1;

  --success: #1C7A43;
  --success-subtle: #E2F3E9;
  --on-success-subtle: #14592F;
  --info-subtle: #E4EDFB;
  --on-info-subtle: #174A96;
  --distance: #0B7369;
  --distance-subtle: #DDF3EF;
  --on-distance-subtle: #075A52;
  --rose-subtle: #FBE7F0;
  --on-rose-subtle: #8A1F4E;
  --gold: #8C6302;
  --gold-subtle: #FDF3D9;
  --gold-glow: #EDB333;

  --shadow-sm: 0 1px 2px rgba(27, 21, 48, .06), 0 1px 3px rgba(27, 21, 48, .06);
  --shadow-md: 0 8px 24px -8px rgba(27, 21, 48, .16), 0 2px 6px rgba(27, 21, 48, .05);
  --shadow-lg: 0 40px 80px -24px rgba(45, 28, 96, .32), 0 16px 32px -16px rgba(27, 21, 48, .18);

  --hero-glow-1: rgba(108, 79, 169, .20);
  --hero-glow-2: rgba(216, 180, 160, .32);

  --font: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-num: "Montserrat", var(--font);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --page: 1160px;
  --gutter: 20px;

  --ease: cubic-bezier(.2, .7, .2, 1);
  --fast: 160ms;
  --slow: 600ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text-brand: #A085E4;
    --brand-subtle: #31264A;
    --on-brand-subtle: #D6CAFB;

    --accent-strong: #EDBF9E;
    --accent-subtle: #3A2A21;

    --bg: #040D12;
    --bg-subtle: #07131B;
    --bg-muted: #192831;
    --surface: #0B1820;
    --surface-2: #0F1E27;

    --heading: #F2F7FB;
    --text: #E2E9EE;
    --text-2: #A9B9C3;
    --text-3: #8497A3;

    --border: #283944;
    --border-subtle: #182730;

    --success: #5FCB8D;
    --success-subtle: #173A27;
    --on-success-subtle: #8EE0B1;
    --info-subtle: #1A2C4C;
    --on-info-subtle: #AACAFF;
    --distance: #5CD0C3;
    --distance-subtle: #14312E;
    --on-distance-subtle: #8DE3D9;
    --rose-subtle: #3E1E2E;
    --on-rose-subtle: #F7B3D0;
    --gold: #EAC25A;
    --gold-subtle: #36290E;
    --gold-glow: #F2BF47;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, .6);
    --shadow-lg: 0 40px 80px -24px rgba(0, 0, 0, .7), 0 0 0 1px rgba(255, 255, 255, .04);

    --hero-glow-1: rgba(108, 79, 169, .30);
    --hero-glow-2: rgba(216, 180, 160, .10);
  }
}

/* ── Base ───────────────────────────────────────────────────────────────── */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

a { color: var(--text-brand); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

h1, h2, h3, h4 { color: var(--heading); line-height: 1.15; margin: 0; letter-spacing: -.02em; font-weight: 700; }
p { margin: 0; }

:focus-visible { outline: 3px solid var(--text-brand); outline-offset: 3px; border-radius: 6px; }

.skip-link {
  position: absolute; left: var(--space-4); top: -60px; z-index: 100;
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm);
  background: var(--brand); color: #fff; font-weight: 600; text-decoration: none;
}
.skip-link:focus { top: var(--space-4); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.container { width: 100%; max-width: var(--page); margin: 0 auto; padding: 0 var(--gutter); }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-brand);
}

.section { padding: var(--space-9) 0; }
.section-head { max-width: 640px; margin: 0 auto var(--space-7); text-align: center; }
.section-head h2 { font-size: clamp(30px, 4.2vw, 44px); margin-top: var(--space-3); }
.section-head p { margin-top: var(--space-4); color: var(--text-2); font-size: 18px; }

/* ── Buttons ────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 var(--space-5);
  border-radius: var(--radius-full); border: 1.5px solid transparent;
  font: 600 16px/1 var(--font); text-decoration: none; white-space: nowrap;
  cursor: pointer;
  transition: transform var(--fast) var(--ease), background-color var(--fast) var(--ease),
              box-shadow var(--fast) var(--ease), border-color var(--fast) var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn svg { width: 22px; height: 22px; flex: none; }

.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 10px 24px -10px rgba(108, 79, 169, .7); }
.btn-primary:hover { background: var(--brand-pressed); }

.btn-ghost { background: transparent; color: var(--heading); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--text-brand); color: var(--text-brand); }

.btn-light { background: #fff; color: #2b1d52; }
.btn-light:hover { background: #F2EEFC; }

.btn-store { min-height: 58px; padding: 0 var(--space-5) 0 var(--space-4); gap: 12px; text-align: left; }
.btn-store .store-text { display: flex; flex-direction: column; line-height: 1.15; }
.btn-store .store-text small { font-size: 11px; font-weight: 500; opacity: .85; letter-spacing: .02em; }
.btn-store .store-text strong { font-size: 18px; font-weight: 600; }
.btn-store svg { width: 26px; height: 26px; }

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

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--fast) var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--border-subtle); }
.site-header .bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); height: 72px; }

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--heading); }
.brand:hover { text-decoration: none; }
.brand-tile {
  width: 38px; height: 38px; border-radius: 11px; background: var(--brand);
  display: grid; place-items: center; box-shadow: 0 6px 14px -6px rgba(108, 79, 169, .8);
}
.brand-tile img { width: 30px; height: 30px; }
.brand-name { font-size: 21px; font-weight: 700; letter-spacing: -.03em; }

.nav { display: flex; align-items: center; gap: var(--space-6); }
.nav a { color: var(--text-2); font-size: 15px; font-weight: 500; text-decoration: none; }
.nav a:hover { color: var(--heading); }
.site-header .btn { min-height: 42px; padding: 0 18px; font-size: 15px; }

@media (max-width: 860px) {
  .nav { display: none; }
}

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

.hero { position: relative; padding: var(--space-8) 0 var(--space-9); overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 900px; z-index: -1;
  background:
    radial-gradient(600px 420px at 78% 30%, var(--hero-glow-1), transparent 70%),
    radial-gradient(520px 380px at 10% 10%, var(--hero-glow-2), transparent 70%);
}
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: var(--space-6); }

.hero h1 { font-size: clamp(40px, 6.2vw, 68px); letter-spacing: -.035em; margin-top: var(--space-4); }
.hero h1 .accent {
  background: linear-gradient(100deg, var(--text-brand) 10%, var(--accent-strong) 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lede { margin-top: var(--space-5); font-size: clamp(17px, 2vw, 20px); color: var(--text-2); max-width: 540px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }

.pill {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 6px 14px 6px 8px; border-radius: var(--radius-full);
  background: var(--surface); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm);
  font-size: 14px; font-weight: 500; color: var(--text-2);
}
.pill .dot {
  display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%;
  background: var(--success-subtle); color: var(--success);
}
.pill .dot svg { width: 14px; height: 14px; }

.trust { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-5); margin-top: var(--space-6); padding: 0; list-style: none; }
.trust li { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--text-2); font-size: 15px; font-weight: 500; }
.trust svg { width: 20px; height: 20px; color: var(--success); flex: none; }

.hero-visual { position: relative; display: flex; justify-content: center; min-height: 640px; }

@media (max-width: 960px) {
  .hero { padding-top: var(--space-6); }
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .hero-copy { text-align: center; }
  .hero .lede { margin-left: auto; margin-right: auto; }
  .hero .actions, .trust { justify-content: center; }
}

/* ── Phone mock-up (pure HTML/CSS, mirrors the app's Home and Details) ─── */

.phone {
  position: relative; width: 300px; height: 620px; flex: none;
  border-radius: 46px; padding: 11px;
  background: linear-gradient(145deg, #2a2440, #0d0b16);
  box-shadow: var(--shadow-lg), inset 0 0 0 1.5px rgba(255, 255, 255, .08);
}
.phone::before { /* camera island */
  content: ""; position: absolute; top: 22px; left: 50%; z-index: 3; transform: translateX(-50%);
  width: 92px; height: 26px; border-radius: 20px; background: #07060c;
}
.screen {
  position: relative; height: 100%; overflow: hidden; border-radius: 36px;
  background: var(--bg); color: var(--text); font-size: 11px; line-height: 1.35;
}
.screen-inner { padding: 50px 14px 14px; }

.m-top { display: flex; align-items: center; gap: 9px; }
.m-pin { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--distance-subtle); color: var(--distance); flex: none; }
.m-pin svg { width: 16px; height: 16px; }
.m-loc small { display: block; color: var(--text-2); font-size: 9.5px; }
.m-loc strong { font-size: 14px; color: var(--heading); font-weight: 700; letter-spacing: -.01em; }
.m-bell { margin-left: auto; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--surface); box-shadow: var(--shadow-sm); color: var(--text); position: relative; }
.m-bell svg { width: 15px; height: 15px; }
.m-bell::after { content: ""; position: absolute; top: 7px; right: 8px; width: 7px; height: 7px; border-radius: 50%; background: #E0453B; border: 1.5px solid var(--surface); }

.m-search { margin-top: 12px; display: flex; align-items: center; gap: 8px; height: 36px; padding: 0 12px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--text-3); font-size: 10.5px; }
.m-search svg { width: 14px; height: 14px; }

.m-watch { margin-top: 10px; display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border-subtle); }
.m-watch .ic { width: 28px; height: 28px; border-radius: 9px; display: grid; place-items: center; background: var(--brand-subtle); color: var(--text-brand); flex: none; }
.m-watch .ic svg { width: 14px; height: 14px; }
.m-watch strong { display: block; font-size: 11px; color: var(--heading); }
.m-watch span { color: var(--text-brand); font-size: 10px; font-weight: 500; }

.m-rail-head { display: flex; align-items: baseline; justify-content: space-between; margin: 16px 0 8px; }
.m-rail-head strong { font-size: 13.5px; color: var(--heading); font-weight: 700; }
.m-rail-head span { color: var(--text-brand); font-size: 10px; font-weight: 600; }

.m-rail { display: flex; gap: 10px; }
.m-card { width: 112px; flex: none; }
.m-card .t { margin-top: 6px; font-weight: 600; font-size: 11px; color: var(--heading); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m-card .a { color: var(--text-2); font-size: 9.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.m-card .p { font-family: var(--font-num); font-weight: 700; font-size: 13px; color: var(--heading); margin-top: 1px; }
.m-card .p.free { color: var(--success); }

.m-cover-wrap { position: relative; }
.m-card.for-you .m-cover-wrap { padding: 2px; border-radius: 13px; background: linear-gradient(140deg, var(--brand), var(--gold-glow)); }
.m-card.for-you .cover { border-radius: 11px; }
.m-chips { position: absolute; left: 6px; bottom: 6px; display: flex; flex-direction: column; align-items: flex-start; gap: 3px; }
.m-chip { padding: 2px 6px; border-radius: 999px; font-size: 8.5px; font-weight: 600; line-height: 1.4; }
.m-chip.cond-new { background: var(--success-subtle); color: var(--on-success-subtle); }
.m-chip.cond-good { background: var(--info-subtle); color: var(--on-info-subtle); }
.m-chip.dist { background: var(--distance-subtle); color: var(--on-distance-subtle); }
.m-tag { position: absolute; left: 6px; top: 6px; padding: 2px 7px; border-radius: 999px; background: var(--gold-subtle); color: var(--gold); font-size: 8.5px; font-weight: 600; border: 1px solid color-mix(in srgb, var(--gold-glow) 60%, transparent); }

.m-tabbar { position: absolute; left: 0; right: 0; bottom: 0; height: 58px; display: flex; justify-content: space-around; align-items: center; padding-bottom: 6px; background: color-mix(in srgb, var(--surface) 92%, transparent); border-top: 1px solid var(--border-subtle); color: var(--text-3); font-size: 8.5px; }
.m-tabbar div { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.m-tabbar svg { width: 17px; height: 17px; }
.m-tabbar .on { color: var(--text-brand); font-weight: 600; }
.m-tabbar .sell { width: 38px; height: 38px; border-radius: 50%; background: var(--brand); color: #fff; display: grid; place-items: center; margin-top: -18px; box-shadow: 0 8px 16px -6px rgba(108, 79, 169, .8); }

/* Book covers — designed in CSS so the mock-up never shows a grey box. */
.cover {
  position: relative; aspect-ratio: 4 / 5; border-radius: 12px; overflow: hidden;
  display: flex; flex-direction: column; justify-content: flex-start; gap: 5px;
  padding: 10px 9px; color: #fff; isolation: isolate;
  box-shadow: inset 4px 0 0 rgba(0, 0, 0, .16), inset 0 0 0 1px rgba(255, 255, 255, .06);
}
.cover::after { /* paper sheen */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(120deg, rgba(255, 255, 255, .18), transparent 40%, rgba(0, 0, 0, .12));
}
.cover .ct { font-weight: 700; font-size: 12px; line-height: 1.05; letter-spacing: -.01em; }
.cover .ca { font-size: 7.5px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; opacity: .85; }
.cover-1 { background: radial-gradient(120% 80% at 80% 100%, #f2a65a 0 30%, transparent 31%), linear-gradient(160deg, #1d6b5e, #0f3b35); }
.cover-2 { background: repeating-linear-gradient(45deg, rgba(255, 255, 255, .07) 0 6px, transparent 6px 12px), linear-gradient(180deg, #e9c46a, #c9822b); color: #3a230b; }
.cover-3 { background: radial-gradient(70% 50% at 50% 38%, #f4ede0 0 34%, transparent 35%), linear-gradient(180deg, #1f2a44, #0e1424); }
.cover-3 .ct { color: #f4ede0; }
.cover-4 { background: linear-gradient(200deg, #f7d6d0 0%, #e88b8b 60%, #b84a62 100%); }
.cover-5 { background: linear-gradient(0deg, #183a5a 0 40%, transparent 40%), linear-gradient(180deg, #8ecae6, #4a90b8); }
.cover-6 { background: conic-gradient(from 210deg at 70% 30%, #6C4FA9, #9b7fd6, #3f2d6c, #6C4FA9); }

/* Details screen */
.d-hero { margin: 44px -14px 0; padding: 14px 0 16px; background: var(--bg-subtle); display: flex; justify-content: center; }
.d-hero .cover { width: 132px; padding: 14px 12px 14px; border-radius: 10px; box-shadow: 0 18px 30px -16px rgba(0, 0, 0, .55), inset 5px 0 0 rgba(0, 0, 0, .16); }
.d-hero .cover .ct { font-size: 17px; }
.d-hero .cover .ca { font-size: 8px; }
.d-title { margin-top: 12px; font-size: 16px; font-weight: 700; color: var(--heading); letter-spacing: -.01em; }
.d-by { color: var(--text-2); font-size: 10.5px; }
.d-price { display: flex; align-items: baseline; gap: 7px; margin-top: 6px; }
.d-price strong { font-family: var(--font-num); font-size: 20px; color: var(--heading); }
.d-price s { color: var(--text-3); font-size: 11px; }
.d-cond { display: flex; align-items: center; gap: 7px; margin-top: 6px; color: var(--text-2); font-size: 10px; }
.d-meta { display: flex; align-items: center; gap: 6px; margin-top: 7px; color: var(--text-2); font-size: 10px; }
.d-meta svg { width: 12px; height: 12px; }
.d-meta b { color: var(--distance); font-weight: 600; }
.d-seller { display: flex; align-items: center; gap: 9px; margin-top: 12px; padding: 10px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border-subtle); }
.d-seller .av { width: 32px; height: 32px; border-radius: 50%; background: var(--brand-subtle); color: var(--on-brand-subtle); display: grid; place-items: center; font-weight: 600; font-size: 11px; flex: none; }
.d-seller strong { display: block; color: var(--heading); font-size: 11.5px; }
.d-seller span { color: var(--text-2); font-size: 9.5px; }
.d-cta { position: absolute; left: 0; right: 0; bottom: 0; display: flex; gap: 8px; padding: 10px 14px 18px; background: var(--surface); border-top: 1px solid var(--border-subtle); }
.d-cta div { flex: 1; height: 36px; border-radius: 999px; display: grid; place-items: center; font-weight: 600; font-size: 11px; }
.d-cta .o { border: 1.5px solid var(--border); color: var(--text-brand); flex: .8; }
.d-cta .c { background: var(--brand); color: #fff; }

/* Floating cards around the hero phone */
.float {
  position: absolute; z-index: 4; display: flex; align-items: center; gap: 12px;
  padding: 12px 16px 12px 12px; border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle); box-shadow: var(--shadow-md);
  font-size: 12.5px; line-height: 1.35; width: max-content; max-width: 236px;
  animation: float 6s var(--ease) infinite alternate;
}
.float strong { display: block; color: var(--heading); font-size: 13.5px; }
.float span { color: var(--text-2); }
.float .ic { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; flex: none; }
.float .ic svg { width: 20px; height: 20px; }
.float-watch { top: 214px; left: calc(50% - 290px); }
.float-watch .ic { background: var(--brand-subtle); color: var(--text-brand); }
.float-chat { top: 92px; right: calc(50% - 286px); animation-delay: -3s; flex-direction: column; align-items: stretch; gap: 6px; padding: 12px; }
.bubble { padding: 7px 11px; border-radius: 14px; font-size: 12.5px; max-width: 210px; }
.bubble.in { background: var(--bg-muted); color: var(--text); border-bottom-left-radius: 4px; align-self: flex-start; }
.bubble.out { background: var(--brand); color: #fff; border-bottom-right-radius: 4px; align-self: flex-end; }
.float-free { bottom: 120px; right: calc(50% - 280px); animation-delay: -1.5s; }
.float-free .ic { background: var(--success-subtle); color: var(--success); }

@keyframes float { from { transform: translateY(0); } to { transform: translateY(-10px); } }

@media (max-width: 1100px) and (min-width: 961px) {
  .float-watch { left: calc(50% - 250px); }
  .float-chat { right: calc(50% - 250px); }
  .float-free { right: calc(50% - 246px); }
}
@media (max-width: 600px) {
  .hero { padding-bottom: var(--space-7); }
  .hero-visual { min-height: 0; }
  .phone { transform: scale(.88); transform-origin: top center; margin-bottom: -74px; }
  .float { animation: none; }
  .float-watch { top: 240px; left: 0; }
  .float-chat { top: auto; bottom: 64px; right: 0; }
  .float-free { display: none; }
}

/* ── Values strip ───────────────────────────────────────────────────────── */

.values { padding: var(--space-6) 0; border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); background: var(--bg-subtle); }
.values ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.values li { display: flex; flex-direction: column; gap: 2px; text-align: center; }
.values b { font-family: var(--font-num); font-size: clamp(24px, 3vw, 32px); color: var(--heading); letter-spacing: -.02em; }
.values span { color: var(--text-2); font-size: 14px; }
@media (max-width: 720px) { .values ul { grid-template-columns: repeat(2, 1fr); row-gap: var(--space-6); } }

/* ── Features ───────────────────────────────────────────────────────────── */

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.feature {
  position: relative; padding: var(--space-6); border-radius: var(--radius-lg);
  background: var(--surface); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm);
  transition: transform var(--slow) var(--ease), box-shadow var(--slow) var(--ease), border-color var(--slow) var(--ease);
}
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--border); }
.feature .ic { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; }
.feature .ic svg { width: 26px; height: 26px; }
.feature h3 { margin-top: var(--space-5); font-size: 20px; letter-spacing: -.015em; }
.feature p { margin-top: var(--space-2); color: var(--text-2); font-size: 15.5px; }
.tone-brand { background: var(--brand-subtle); color: var(--text-brand); }
.tone-distance { background: var(--distance-subtle); color: var(--distance); }
.tone-accent { background: var(--accent-subtle); color: var(--accent-strong); }
.tone-gold { background: var(--gold-subtle); color: var(--gold); }
.tone-rose { background: var(--rose-subtle); color: var(--on-rose-subtle); }
.tone-success { background: var(--success-subtle); color: var(--success); }
@media (max-width: 960px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .features { grid-template-columns: 1fr; } .feature { padding: var(--space-5); } }

/* ── How it works ───────────────────────────────────────────────────────── */

.how { background: var(--bg-subtle); border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); }
.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.how-card { padding: var(--space-6); border-radius: var(--radius-xl); background: var(--surface); border: 1px solid var(--border-subtle); }
.how-card h3 { display: flex; align-items: center; gap: var(--space-3); font-size: 22px; }
.how-card h3 .ic { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; }
.how-card h3 .ic svg { width: 22px; height: 22px; }
.steps { list-style: none; margin: var(--space-5) 0 0; padding: 0; counter-reset: step; display: grid; gap: var(--space-4); }
.steps li { counter-increment: step; display: grid; grid-template-columns: 40px 1fr; gap: var(--space-4); align-items: start; }
.steps li::before {
  content: counter(step); width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center; font-family: var(--font-num); font-weight: 700;
  background: var(--bg-muted); color: var(--heading);
}
.steps strong { display: block; color: var(--heading); font-size: 16.5px; font-weight: 600; margin-top: 7px; }
.steps span { color: var(--text-2); font-size: 15px; }
@media (max-width: 860px) { .how-grid { grid-template-columns: 1fr; } .how-card { padding: var(--space-5); } }

/* ── Showcase ───────────────────────────────────────────────────────────── */

.showcase { display: grid; grid-template-columns: .9fr 1.1fr; gap: var(--space-8); align-items: center; }
.showcase-visual { position: relative; display: flex; justify-content: center; padding: var(--space-5) 0; }
.showcase-visual::before {
  content: ""; position: absolute; inset: 8% 6%; z-index: -1; border-radius: 48px;
  background: radial-gradient(70% 60% at 50% 40%, var(--hero-glow-1), transparent 70%);
}
.showcase h2 { font-size: clamp(30px, 4vw, 42px); margin-top: var(--space-3); }
.showcase .lede { margin-top: var(--space-4); color: var(--text-2); font-size: 18px; }
.checks { list-style: none; margin: var(--space-6) 0 0; padding: 0; display: grid; gap: var(--space-4); }
.checks li { display: grid; grid-template-columns: 28px 1fr; gap: var(--space-3); }
.checks svg { width: 28px; height: 28px; padding: 5px; border-radius: 50%; background: var(--brand-subtle); color: var(--text-brand); }
.checks strong { color: var(--heading); font-weight: 600; }
.checks span { color: var(--text-2); }
@media (max-width: 960px) {
  .showcase { grid-template-columns: 1fr; gap: var(--space-6); }
  .showcase-copy { order: -1; }
}

/* ── Mission ────────────────────────────────────────────────────────────── */

.mission {
  position: relative; overflow: hidden; border-radius: var(--radius-xl);
  padding: var(--space-8) var(--space-7);
  background: linear-gradient(135deg, #3b2a6b 0%, #6C4FA9 55%, #9a76c9 100%);
  color: #f3eefe;
}
.mission::after {
  content: ""; position: absolute; right: -120px; top: -120px; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(237, 179, 51, .35), transparent 65%);
}
.mission h2 { color: #fff; font-size: clamp(30px, 4vw, 44px); max-width: 640px; position: relative; z-index: 1; }
.mission > p { margin-top: var(--space-4); max-width: 620px; font-size: 18px; color: rgba(243, 238, 254, .85); position: relative; z-index: 1; }
.mission-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-top: var(--space-7); }
.mission-grid div { padding: var(--space-5); border-radius: var(--radius-lg); background: rgba(255, 255, 255, .09); border: 1px solid rgba(255, 255, 255, .14); }
.mission-grid h3 { color: #fff; font-size: 18px; }
.mission-grid p { margin-top: var(--space-2); color: rgba(243, 238, 254, .82); font-size: 15px; }
@media (max-width: 860px) {
  .mission { padding: var(--space-7) var(--space-5); border-radius: var(--radius-lg); }
  .mission-grid { grid-template-columns: 1fr; }
}

/* ── Safety ─────────────────────────────────────────────────────────────── */

.safety-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.tip { padding: var(--space-5); border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--border-subtle); }
.tip .ic { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; }
.tip .ic svg { width: 22px; height: 22px; }
.tip h3 { margin-top: var(--space-4); font-size: 17px; }
.tip p { margin-top: var(--space-2); color: var(--text-2); font-size: 15px; }
@media (max-width: 960px) { .safety-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .safety-grid { grid-template-columns: 1fr; } }

/* ── FAQ ────────────────────────────────────────────────────────────────── */

.faq { max-width: 820px; margin: 0 auto; display: grid; gap: var(--space-3); }
.faq details { border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border-subtle); transition: border-color var(--fast) var(--ease); }
.faq details[open] { border-color: var(--border); box-shadow: var(--shadow-sm); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-5); font-weight: 600; font-size: 17px; color: var(--heading);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; width: 12px; height: 12px; flex: none; margin-right: 4px;
  border-right: 2px solid var(--text-3); border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg) translateY(-3px); transition: transform var(--fast) var(--ease);
}
.faq details[open] summary::after { transform: rotate(-135deg) translateY(-3px); }
.faq details > div { padding: 0 var(--space-5) var(--space-5); color: var(--text-2); }

/* ── Final call to action ───────────────────────────────────────────────── */

.cta-band {
  position: relative; overflow: hidden; text-align: center;
  padding: var(--space-8) var(--space-5); border-radius: var(--radius-xl);
  background: var(--surface); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-md);
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(500px 240px at 50% 0%, var(--hero-glow-1), transparent 70%);
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band .app-icon { width: 72px; height: 72px; border-radius: 20px; margin: 0 auto; box-shadow: 0 16px 32px -14px rgba(108, 79, 169, .9); }
.cta-band h2 { margin-top: var(--space-5); font-size: clamp(28px, 4vw, 42px); }
.cta-band p { margin: var(--space-3) auto 0; max-width: 520px; color: var(--text-2); font-size: 18px; }
.cta-band .actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-top: var(--space-6); }
.cta-band .note { margin-top: var(--space-4); font-size: 14px; color: var(--text-3); }

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

.site-footer { margin-top: var(--space-9); padding: var(--space-7) 0 var(--space-6); border-top: 1px solid var(--border-subtle); background: var(--bg-subtle); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-6); }
.footer-grid p { margin-top: var(--space-3); color: var(--text-2); font-size: 15px; max-width: 320px; }
.footer-grid h4 { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); font-weight: 600; }
.footer-grid ul { list-style: none; padding: 0; margin: var(--space-3) 0 0; display: grid; gap: var(--space-2); }
.footer-grid ul a { color: var(--text-2); text-decoration: none; font-size: 15px; }
.footer-grid ul a:hover { color: var(--heading); text-decoration: underline; }
.footer-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--border-subtle); color: var(--text-3); font-size: 14px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-grid > div:first-child { grid-column: 1 / -1; } }

/* ── Document pages (privacy, terms, about) ─────────────────────────────── */

.doc-hero { padding: var(--space-8) 0 var(--space-6); text-align: center; }
.doc-hero h1 { font-size: clamp(34px, 5vw, 52px); margin-top: var(--space-3); }
.doc-hero p { margin-top: var(--space-3); color: var(--text-2); }

.doc { max-width: 760px; margin: 0 auto; }
.doc-card { padding: var(--space-7); border-radius: var(--radius-xl); background: var(--surface); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-sm); }
.doc-card > * + * { margin-top: var(--space-4); }
.doc-card h2 { font-size: 22px; margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--border-subtle); }
.doc-card h2:first-of-type { margin-top: var(--space-6); }
.doc-card h3 { font-size: 17px; margin-top: var(--space-5); }
.doc-card p, .doc-card li { color: var(--text-2); }
.doc-card strong { color: var(--text); font-weight: 600; }
.doc-card ul { padding-left: 1.25em; }
.doc-card li + li { margin-top: var(--space-2); }
.doc-card .summary { padding: var(--space-5); border-radius: var(--radius); background: var(--brand-subtle); color: var(--on-brand-subtle); }
.doc-card .summary p, .doc-card .summary li { color: var(--on-brand-subtle); }
.doc-toc { padding: var(--space-5); border-radius: var(--radius); background: var(--bg-subtle); border: 1px solid var(--border-subtle); }
.doc-toc ol { margin: var(--space-2) 0 0; padding-left: 1.3em; columns: 2; column-gap: var(--space-6); }
.doc-toc li { break-inside: avoid; font-size: 15px; }
.doc-toc a { text-decoration: none; }
.doc-toc a:hover { text-decoration: underline; }
@media (max-width: 640px) { .doc-card { padding: var(--space-5); border-radius: var(--radius-lg); } .doc-toc ol { columns: 1; } }

/* ── Open-in-app page ───────────────────────────────────────────────────── */

.open-page { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: var(--space-6) var(--gutter); position: relative; overflow: hidden; }
.open-page::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(520px 360px at 50% 0%, var(--hero-glow-1), transparent 70%),
    radial-gradient(420px 320px at 100% 100%, var(--hero-glow-2), transparent 70%);
}
.open-card { width: 100%; max-width: 440px; text-align: center; padding: var(--space-7) var(--space-6); border-radius: var(--radius-xl); background: var(--surface); border: 1px solid var(--border-subtle); box-shadow: var(--shadow-lg); }
.open-card .app-icon { width: 80px; height: 80px; border-radius: 22px; margin: 0 auto; box-shadow: 0 16px 32px -14px rgba(108, 79, 169, .9); }
.open-card h1 { margin-top: var(--space-5); font-size: 26px; }
.open-card p { margin-top: var(--space-3); color: var(--text-2); }
.open-card .actions { display: grid; gap: var(--space-3); margin-top: var(--space-6); }
.open-card .btn { width: 100%; }
.open-card .home-link { display: inline-block; margin-top: var(--space-5); font-size: 15px; color: var(--text-2); }
.open-card .kind { display: inline-flex; margin-top: var(--space-4); padding: 4px 12px; border-radius: 999px; background: var(--brand-subtle); color: var(--on-brand-subtle); font-size: 13px; font-weight: 600; }
@media (max-width: 480px) { .open-card { padding: var(--space-6) var(--space-5); } }

/* ── Reveal on scroll ───────────────────────────────────────────────────── */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}