/* Lumo — shared site styles. Tokens mirror apps/mobile/src/theme/index.ts. */

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

:root {
  --bg: #FFFFFF;
  --canvas: #F6F7F9;
  --surface: #F4F5F7;
  --text: #0B0B0F;
  --text-2: #6B7280;
  --text-3: #9CA3AF;
  --border: #ECEDF0;
  --hairline: #F0F1F4;
  --primary: #0A0A0B;
  --on-primary: #FFFFFF;

  /* Brand pair, straight from the app theme: indigo accent + money green. */
  --accent: #5B5BD6;
  --accent-soft: #EEEFFE;
  --accent-deep: #4342BE;
  --money: #0E9F6E;
  --money-soft: #E7F7F0;
  --money-deep: #0B8058;
  --warning: #F59E0B;

  --brand-grad: linear-gradient(100deg, var(--accent) 0%, #3D8FCB 48%, var(--money) 100%);
  --aurora-1: color-mix(in srgb, var(--accent) 20%, transparent);
  --aurora-2: color-mix(in srgb, var(--money) 18%, transparent);

  --r-sm: 10px;
  --r: 16px;
  --r-lg: 22px;
  --r-xl: 30px;

  --shadow-sm: 0 1px 2px rgba(11, 11, 15, .04);
  --shadow: 0 1px 2px rgba(11, 11, 15, .04), 0 8px 28px rgba(11, 11, 15, .06);
  --shadow-lg: 0 2px 6px rgba(11, 11, 15, .05), 0 24px 60px rgba(11, 11, 15, .10);

  --font: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --nav-h: 60px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0B0B0F;
    --canvas: #101015;
    --surface: #17171D;
    --text: #F5F5F7;
    --text-2: #9CA3AF;
    --text-3: #71717A;
    --border: #24242B;
    --hairline: #1C1C23;
    --primary: #FFFFFF;
    --on-primary: #0B0B0F;
    --accent: #8B8BF0;
    --accent-soft: #1C1C3A;
    --accent-deep: #A9A9F7;
    --money: #34D399;
    --money-soft: #0F2A22;
    --money-deep: #5FE3B4;
    --aurora-1: color-mix(in srgb, var(--accent) 26%, transparent);
    --aurora-2: color-mix(in srgb, var(--money) 22%, transparent);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 28px rgba(0, 0, 0, .35);
    --shadow-lg: 0 2px 6px rgba(0, 0, 0, .5), 0 24px 60px rgba(0, 0, 0, .5);
  }
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 80px; }

body {
  font-family: var(--font);
  font-weight: 400;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

::selection { background: var(--accent-soft); color: var(--text); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; }

/* ---------- Type ---------- */

h1, h2, h3, h4 { letter-spacing: -.03em; line-height: 1.08; font-weight: 700; text-wrap: balance; }
h1 { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.875rem, 3.6vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); letter-spacing: -.02em; font-weight: 600; }
p { text-wrap: pretty; }

/* The gradient runs across the brand pair, so a headline carries both colours. */
.grad {
  background: var(--brand-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .75rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: '';
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-grad);
}
.section-head.center .eyebrow { justify-content: center; }

.lede { font-size: clamp(1.0625rem, 1.5vw, 1.1875rem); color: var(--text-2); line-height: 1.6; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: 100px;
  font: inherit;
  font-size: .9375rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { box-shadow: var(--shadow); }

.btn-brand { background: var(--brand-grad); color: #FFFFFF; }
.btn-brand:hover { box-shadow: 0 10px 30px color-mix(in srgb, var(--accent) 34%, transparent); }

.btn-ghost { background: var(--bg); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-soft); }

.btn-sm { padding: 9px 18px; font-size: .875rem; }

/* App-store buttons carry their own glyph, so they sit slightly taller. */
.store-row { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-store { padding: 13px 24px 13px 20px; }
.btn-store svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.nav.is-scrolled { border-bottom-color: var(--border); }
.nav-in {
  height: var(--nav-h);
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.0625rem;
  font-weight: 800;
  letter-spacing: -.02em;
  text-decoration: none;
}
.brand img { height: 24px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { font-size: .875rem; font-weight: 500; color: var(--text-2); text-decoration: none; transition: color .2s; }
.nav-links a:hover { color: var(--accent); }
.nav-links a.btn-brand, .nav-links a.btn-brand:hover { color: #FFFFFF; }
.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--text); }
.nav-toggle svg { width: 20px; height: 20px; }

.nav-drawer { display: none; }
.nav-drawer.is-open {
  display: block;
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 12px 24px 20px;
}
.nav-drawer a {
  display: block;
  padding: 12px 0;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
}
.nav-drawer .btn { width: 100%; margin-top: 16px; color: #FFFFFF; }

/* ---------- Sections ---------- */

section { padding: clamp(72px, 10vw, 130px) 0; }
.section-canvas { background: var(--canvas); }
.section-head { max-width: 640px; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { margin-top: 18px; }

/* A wash of the brand pair behind a section, so colour carries down the page. */
.aurora { position: relative; isolation: isolate; overflow: hidden; }
.aurora::before,
.aurora::after {
  content: '';
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.aurora::before { width: 46vw; height: 46vw; top: -18vw; left: -12vw; background: var(--aurora-1); }
.aurora::after { width: 42vw; height: 42vw; bottom: -20vw; right: -14vw; background: var(--aurora-2); }

/* ---------- Cards ---------- */

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 30px;
}
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- Reveal ---------- */

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .07s; }
.reveal.d2 { transition-delay: .14s; }
.reveal.d3 { transition-delay: .21s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

/* ---------- Footer ---------- */

.footer { border-top: 1px solid var(--border); padding: 64px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand p { margin-top: 14px; font-size: .875rem; color: var(--text-2); max-width: 260px; }
.footer h4 { font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; color: var(--text-3); margin-bottom: 14px; }
.footer-col a { display: block; padding: 5px 0; font-size: .875rem; color: var(--text-2); text-decoration: none; transition: color .2s; }
.footer-col a:hover { color: var(--accent); }
.footer-base {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: .8125rem;
  color: var(--text-3);
}
.footer-base p { max-width: 620px; line-height: 1.55; }

/* ---------- Legal / prose pages ---------- */

.page-head { padding: clamp(48px, 7vw, 88px) 0 0; }
.page-head .meta { margin-top: 14px; font-size: .875rem; color: var(--text-3); }
.back-link { display: inline-flex; align-items: center; gap: 6px; font-size: .875rem; color: var(--text-2); text-decoration: none; margin-bottom: 28px; }
.back-link:hover { color: var(--accent); }

.prose { padding: 40px 0 96px; font-size: .9688rem; color: var(--text-2); }
.prose h2 {
  font-size: 1.375rem;
  color: var(--text);
  margin: 56px 0 16px;
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
  letter-spacing: -.02em;
}
.prose h2:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.prose h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin: 28px 0 10px; letter-spacing: -.01em; }
.prose p { margin-bottom: 14px; line-height: 1.7; }
.prose ul { margin: 0 0 16px 0; padding-left: 20px; }
.prose li { margin-bottom: 8px; line-height: 1.65; }
.prose strong { color: var(--text); font-weight: 700; }
.prose a { color: var(--accent); text-decoration: none; }
.prose a:hover { text-decoration: underline; }
.prose table { width: 100%; border-collapse: collapse; margin-bottom: 20px; font-size: .9375rem; }
.prose th, .prose td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.prose th { color: var(--text); font-weight: 700; width: 34%; }

.callout {
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: var(--r);
  padding: 20px 22px;
  margin: 0 0 24px;
}
.callout p:last-child { margin-bottom: 0; }
.callout strong { display: block; margin-bottom: 6px; }

.glance { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 40px; }
.glance div {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 14px 16px;
  font-size: .875rem;
  color: var(--text);
}
.glance svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 3px; color: var(--money); }

.toc { border: 1px solid var(--border); border-radius: var(--r-lg); padding: 22px 26px; margin-bottom: 44px; }
.toc h4 { font-size: .75rem; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; color: var(--text-3); margin-bottom: 12px; }
.toc ol { columns: 2; column-gap: 32px; padding-left: 18px; font-size: .875rem; }
.toc li { margin-bottom: 6px; break-inside: avoid; }
.toc a { color: var(--text-2); text-decoration: none; }
.toc a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .aurora::before { width: 78vw; height: 78vw; top: -30vw; }
  .aurora::after { width: 70vw; height: 70vw; bottom: -34vw; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .glance { grid-template-columns: 1fr; }
  .toc ol { columns: 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .prose table th, .prose table td { display: block; width: 100%; }
  .prose table th { border-bottom: 0; padding-bottom: 0; }
}