/* Bisotun wallet site. Tokens: work/branding/tokens.json (light default, dark via prefers-color-scheme). */

/* Project typeface (SIL Open Font License 1.1, /assets/fonts/LICENSE.txt), neutral family alias. */
@font-face { font-family: 'Bisotun Sans'; font-weight: 400; font-style: normal; font-display: swap; src: url('fonts/bisotun-sans-400.woff2') format('woff2'); }
@font-face { font-family: 'Bisotun Sans'; font-weight: 500; font-style: normal; font-display: swap; src: url('fonts/bisotun-sans-500.woff2') format('woff2'); }
@font-face { font-family: 'Bisotun Sans'; font-weight: 600; font-style: normal; font-display: swap; src: url('fonts/bisotun-sans-600.woff2') format('woff2'); }
@font-face { font-family: 'Bisotun Sans'; font-weight: 700; font-style: normal; font-display: swap; src: url('fonts/bisotun-sans-700.woff2') format('woff2'); }

:root {
  --primary: #0F5C63;
  --on-primary: #FFFFFF;
  --primary-deep: #0B4A50;
  --secondary: #C8A46A;
  --accent: #238C84;
  --ink: #14212B;
  --ink-muted: #4A5A66;
  --surface: #F6F4EF;
  --surface-alt: #ECE7DC;
  --card: #FFFFFF;
  --border: #D9D2C3;
  --link: #0F5C63;
  --error: #B3261E;
  --warning: #935700;
  --success: #1B703F;
  --radius: 12px;
  --card-radius: 16px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #4FB3AA;
    --on-primary: #062A2D;
    --secondary: #D9BC8A;
    --accent: #5CC6BC;
    --ink: #E8ECEF;
    --ink-muted: #A9B6BF;
    --surface: #10181E;
    --surface-alt: #18232B;
    --card: #1C2830;
    --border: #2C3A44;
    --link: #7FD1C8;
    --error: #F2B8B5;
    --warning: #FFB960;
    --success: #7DD99B;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Bisotun Sans', Tahoma, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.75;
  background: var(--surface);
  color: var(--ink);
}
main { flex: 1; }
img { max-width: 100%; height: auto; }
a { color: var(--link); text-underline-offset: 3px; }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.35; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); font-weight: 700; color: var(--primary); }
h2 { font-size: 1.35rem; font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 600; }
code { font-family: ui-monospace, Consolas, 'Courier New', monospace; font-size: 0.9em; background: var(--surface-alt); padding: 0.1em 0.35em; border-radius: 6px; overflow-wrap: anywhere; }
.muted { color: var(--ink-muted); }

.wrap { width: 100%; max-width: 1040px; margin-inline: auto; padding-inline: 16px; }
.narrow { max-width: 780px; }

/* header */
.site-header { background: var(--card); border-block-end: 3px solid var(--secondary); }
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; padding-block: 12px; }
.brand { display: block; line-height: 0; }
.lockup img { display: block; height: 40px; width: auto; }
.lockup-big img { height: 56px; margin-inline: auto; }
.langs { display: flex; gap: 4px 14px; flex-wrap: wrap; }
.langs a { text-decoration: none; color: var(--ink-muted); padding: 4px 2px; }
.langs a:hover { color: var(--link); text-decoration: underline; }
.langs a[aria-current] { color: var(--link); font-weight: 600; text-decoration: underline; }

/* buttons */
.button {
  display: inline-block;
  background: var(--primary);
  color: var(--on-primary);
  text-decoration: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  line-height: 1.5;
}
.button:hover { background: var(--primary-deep); color: #FFFFFF; }
@media (prefers-color-scheme: dark) { .button:hover { background: var(--accent); color: var(--on-primary); } }

/* landing */
.hero { background: linear-gradient(180deg, var(--card), var(--surface)); }
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 24px; padding-block: 40px 24px; }
.hero h1 { font-size: clamp(1.7rem, 4.5vw, 2.6rem); }
.hero-name { display: block; }
.hero-sep { display: none; }
.hero-tagline { display: block; color: var(--ink); font-weight: 600; font-size: 0.72em; margin-top: 0.2em; }
.lead { font-size: 1.12rem; color: var(--ink); max-width: 38em; }
.cta { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 16px; margin-top: 24px; }
.hero-art img { display: block; width: 100%; max-width: 420px; margin-inline: auto; }
.features { list-style: none; padding: 0; margin: 24px 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: var(--card-radius); padding: 20px; }
.feature p { margin: 0; color: var(--ink-muted); }
.feature-mark { display: block; width: 28px; height: 6px; border-radius: 3px; background: var(--secondary); margin-bottom: 14px; }
.portal-link { margin: 8px 0 32px; }
@media (max-width: 720px) {
  .hero-inner { grid-template-columns: 1fr; padding-block: 24px 8px; }
  .hero-art { order: -1; }
  .hero-art img { max-width: 260px; }
}

/* legal / docs */
.banner {
  margin: 24px 0 8px;
  padding: 14px 18px;
  border: 1px solid var(--warning);
  border-inline-start-width: 6px;
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
}
.banner p { margin: 0.2em 0 0; }
.banner-label { display: inline-block; color: var(--warning); text-transform: uppercase; letter-spacing: 0.03em; font-size: 0.85rem; }
.prose { background: var(--card); border: 1px solid var(--border); border-radius: var(--card-radius); padding: 24px clamp(16px, 4vw, 40px); margin: 16px 0 40px; overflow-wrap: break-word; }
.prose h1 { margin-bottom: 0.6em; }
.prose h2 { margin-top: 1.6em; color: var(--primary); }
.prose ul, .prose ol { padding-inline-start: 1.4em; }
.prose li { margin: 0.25em 0; }
.table-wrap { overflow-x: auto; margin: 1em 0; }
.prose table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: 0.95rem; }
.prose th, .prose td { border: 1px solid var(--border); padding: 8px 10px; text-align: start; vertical-align: top; }
.prose th { background: var(--surface-alt); font-weight: 600; }
mark.ph { background: var(--surface-alt); color: var(--warning); border-radius: 4px; padding: 0 0.2em; font-weight: 600; unicode-bidi: isolate; }

/* download */
.download-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--card-radius); padding: 20px; margin: 20px 0; }
.notice { border-inline-start: 5px solid var(--secondary); padding-inline-start: 14px; }
.notice p { margin: 0.2em 0 0; }
.apk-meta { display: grid; grid-template-columns: max-content 1fr; gap: 4px 12px; margin: 12px 0; }
.apk-meta dd { margin: 0; overflow-wrap: anywhere; }
.narrow > h1 { margin-top: 32px; }

/* bounce page, root, 404 */
.session-mark { text-align: center; margin: 32px 0 8px; line-height: 0; }
.session-mark img { display: inline-block; height: 96px; width: auto; }
.root .session-mark img, .session-mark .lockup-big img { height: 56px; }
.session-lang { background: var(--card); border: 1px solid var(--border); border-radius: var(--card-radius); padding: 18px 20px; margin: 16px 0; }
.session-lang h2 { color: var(--primary); }
.session-lang .actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; margin-bottom: 0; }
.err { color: var(--error); font-weight: 600; }
.lang-cards { list-style: none; padding: 0; margin: 24px 0 48px; display: grid; gap: 12px; }
.lang-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--border); border-radius: var(--card-radius); padding: 16px 20px; text-decoration: none; color: var(--ink); }
.lang-card:hover { border-color: var(--primary); }
.lang-name { font-weight: 700; font-size: 1.2rem; color: var(--primary); }
.root h1 { text-align: center; }

/* footer */
.site-footer { background: var(--surface-alt); border-block-start: 1px solid var(--border); font-size: 0.95rem; }
.footer-inner { padding-block: 20px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.contact { margin: 10px 0 0; color: var(--ink-muted); }