/* Bisotun demo page. Tokens = work/branding/tokens.scss (light + dark). Logical properties only. */
@font-face { font-family: 'Bisotun Sans'; font-weight: 400; font-display: swap; src: url('fonts/bisotun-sans-400.woff2') format('woff2'); }
@font-face { font-family: 'Bisotun Sans'; font-weight: 500; font-display: swap; src: url('fonts/bisotun-sans-500.woff2') format('woff2'); }
@font-face { font-family: 'Bisotun Sans'; font-weight: 600; font-display: swap; src: url('fonts/bisotun-sans-600.woff2') format('woff2'); }
@font-face { font-family: 'Bisotun Sans'; font-weight: 700; font-display: swap; src: url('fonts/bisotun-sans-700.woff2') format('woff2'); }

:root {
  --bisotun-font-family: 'Bisotun Sans', system-ui, sans-serif;
  --bisotun-radius: 12px;
  --bisotun-radius-card: 16px;
  --bisotun-primary: #0F5C63;
  --bisotun-on-primary: #FFFFFF;
  --bisotun-primary-deep: #0B4A50;
  --bisotun-secondary: #C8A46A;
  --bisotun-on-secondary: #14212B;
  --bisotun-accent: #238C84;
  --bisotun-ink: #14212B;
  --bisotun-ink-muted: #4A5A66;
  --bisotun-surface: #F6F4EF;
  --bisotun-surface-alt: #ECE7DC;
  --bisotun-card: #FFFFFF;
  --bisotun-border: #D9D2C3;
  --bisotun-link: #0F5C63;
  --bisotun-error: #B3261E;
  --bisotun-warning: #935700;
  --bisotun-success: #1B703F;
  --tint-primary: #E2EEEE;
  --tint-success: #E3F1E8;
  --tint-error: #F8E5E4;
  --tint-warning: #F7EDDC;
  --shadow: 0 1px 2px rgb(20 33 43 / 6%), 0 8px 24px rgb(20 33 43 / 6%);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bisotun-primary: #4FB3AA; --bisotun-on-primary: #062A2D; --bisotun-secondary: #D9BC8A;
    --bisotun-on-secondary: #062A2D; --bisotun-accent: #5CC6BC; --bisotun-ink: #E8ECEF;
    --bisotun-ink-muted: #A9B6BF; --bisotun-surface: #10181E; --bisotun-surface-alt: #18232B;
    --bisotun-card: #1C2830; --bisotun-border: #2C3A44; --bisotun-link: #7FD1C8;
    --bisotun-error: #F2B8B5; --bisotun-warning: #FFB960; --bisotun-success: #7DD99B;
    --tint-primary: #173238; --tint-success: #17322A; --tint-error: #3A2224; --tint-warning: #372B1A;
    --shadow: 0 1px 2px rgb(0 0 0 / 30%);
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bisotun-primary: #4FB3AA; --bisotun-on-primary: #062A2D; --bisotun-secondary: #D9BC8A;
  --bisotun-on-secondary: #062A2D; --bisotun-accent: #5CC6BC; --bisotun-ink: #E8ECEF;
  --bisotun-ink-muted: #A9B6BF; --bisotun-surface: #10181E; --bisotun-surface-alt: #18232B;
  --bisotun-card: #1C2830; --bisotun-border: #2C3A44; --bisotun-link: #7FD1C8;
  --bisotun-error: #F2B8B5; --bisotun-warning: #FFB960; --bisotun-success: #7DD99B;
  --tint-primary: #173238; --tint-success: #17322A; --tint-error: #3A2224; --tint-warning: #372B1A;
  --shadow: 0 1px 2px rgb(0 0 0 / 30%);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bisotun-surface);
  color: var(--bisotun-ink);
  font-family: var(--bisotun-font-family);
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
}
img { max-inline-size: 100%; }
a { color: var(--bisotun-link); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.3; margin: 0; }
p { margin: 0; }
[hidden] { display: none !important; }
.vh { position: absolute !important; inline-size: 1px; block-size: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid var(--bisotun-accent); outline-offset: 2px; border-radius: 6px; }
[tabindex='-1']:focus { outline: none; }
.ltr { direction: ltr; unicode-bidi: isolate; }

.wrap { max-inline-size: 1080px; margin-inline: auto; padding-inline: 16px; }

/* ---------- header */
.sprite { position: absolute; }
/* Texts come from i18n/*.json: keep the page invisible (but laid out) until they are in, so nothing jumps.
   Fallback: shown after 4 s even if the script never runs. */
.i18n-pending main, .i18n-pending .topbar .brand { visibility: hidden; animation: i18n-reveal 0s 4s forwards; }
@keyframes i18n-reveal { to { visibility: visible; } }
.skip { position: absolute; inset-inline-start: 16px; inset-block-start: -100px; background: var(--bisotun-card); padding: 8px 12px; border-radius: 8px; z-index: 10; }
.skip:focus { inset-block-start: 8px; }
.topbar { background: var(--bisotun-card); border-block-end: 1px solid var(--bisotun-border); }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-block-size: 64px; flex-wrap: wrap; padding-block: 8px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--bisotun-ink); text-decoration: none; font-weight: 700; font-size: 1.15rem; }
.brand img { block-size: 36px; inline-size: auto; }
.brand .tag { font-weight: 600; font-size: .8rem; color: var(--bisotun-on-secondary); background: var(--bisotun-secondary); padding: 1px 10px; border-radius: 999px; }
.mark-dark { display: none; }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .mark-light { display: none; } :root:not([data-theme='light']) .mark-dark { display: inline; } }
.langs { display: flex; gap: 4px; padding: 3px; background: var(--bisotun-surface-alt); border-radius: 999px; }
.langs button { font: inherit; font-size: .9rem; border: 0; background: transparent; color: var(--bisotun-ink); padding: 4px 12px; border-radius: 999px; cursor: pointer; min-block-size: 36px; }
.langs button[aria-pressed='true'] { background: var(--bisotun-primary); color: var(--bisotun-on-primary); font-weight: 600; }

/* ---------- hero */
.hero { padding-block: 32px 8px; }
.hero h1 { font-size: clamp(1.6rem, 4.5vw, 2.4rem); font-weight: 700; }
.hero p { color: var(--bisotun-ink-muted); max-inline-size: 60ch; margin-block-start: 8px; font-size: 1.05rem; }
.hero .cta { margin-block-start: 16px; }

/* ---------- buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-weight: 600; min-block-size: 48px; padding: 10px 22px; border-radius: var(--bisotun-radius); border: 2px solid transparent; cursor: pointer; text-decoration: none; text-align: center; }
.btn-primary { background: var(--bisotun-primary); color: var(--bisotun-on-primary); }
.btn-primary:hover { background: var(--bisotun-primary-deep); color: #fff; }
.btn-secondary { background: transparent; color: var(--bisotun-primary); border-color: var(--bisotun-primary); }
.btn-secondary:hover { background: var(--tint-primary); }
.btn-link { background: none; border: 0; color: var(--bisotun-link); text-decoration: underline; padding-inline: 4px; min-block-size: 44px; font-weight: 500; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-block-start: 20px; }

/* ---------- how it works */
section.block { padding-block: 24px; }
section.block > h2, .demo-head h2 { font-size: 1.35rem; margin-block-end: 14px; }
.how { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; align-items: stretch; }
.how li { position: relative; background: var(--bisotun-card); border: 1px solid var(--bisotun-border); border-radius: var(--bisotun-radius-card); padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 4px; }
.how img { block-size: 112px; inline-size: auto; align-self: center; margin-block-end: 6px; }
.how .n { display: inline-grid; place-items: center; inline-size: 26px; block-size: 26px; border-radius: 50%; background: var(--bisotun-primary); color: var(--bisotun-on-primary); font-weight: 700; font-size: .85rem; margin-inline-end: 6px; }
.how h3 { font-size: 1.02rem; display: flex; align-items: center; }
.how p { color: var(--bisotun-ink-muted); font-size: .95rem; }
.how li:not(:last-child)::after {
  content: ''; position: absolute; inset-block-start: 62px; inset-inline-end: -13px; inline-size: 14px; block-size: 14px;
  border-block-start: 3px solid var(--bisotun-secondary); border-inline-end: 3px solid var(--bisotun-secondary);
  transform: rotate(45deg); z-index: 1; background: transparent;
}
[dir='rtl'] .how li:not(:last-child)::after { transform: rotate(-45deg); }

.what { margin-block-start: 14px; background: var(--tint-primary); border-radius: var(--bisotun-radius-card); padding: 16px 18px; }
.what h2 { font-size: 1.05rem; display: flex; gap: 8px; align-items: center; }
.what .cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-block-start: 8px; }
.what h3 { font-size: .95rem; }
.what p { font-size: .93rem; color: var(--bisotun-ink); }
.what .privacy { margin-block-start: 10px; font-size: .88rem; color: var(--bisotun-ink-muted); }

/* ---------- demo shell */
.demo { background: var(--bisotun-card); border: 1px solid var(--bisotun-border); border-radius: 20px; box-shadow: var(--shadow); padding: 20px; margin-block: 8px 24px; scroll-margin-block-start: 12px; }
.stepper { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; align-items: center; counter-reset: s; }
.stepper li { flex: 1 1 0; display: flex; align-items: center; gap: 8px; min-inline-size: 0; color: var(--bisotun-ink-muted); font-size: .88rem; font-weight: 500; }
.stepper .dot { flex: none; inline-size: 30px; block-size: 30px; border-radius: 50%; display: grid; place-items: center; border: 2px solid var(--bisotun-border); background: var(--bisotun-card); font-weight: 700; }
.stepper .dot svg { inline-size: 16px; block-size: 16px; }
.stepper .lbl { line-height: 1.25; overflow-wrap: normal; }
/* labels wrap between words only; a step never gets narrower than its longest word */
.stepper li { min-inline-size: min-content; }
.stepper li:not(:last-child)::after { content: ''; flex: 1 1 12px; min-inline-size: 12px; block-size: 2px; background: var(--bisotun-border); }
.stepper li.done { color: var(--bisotun-ink); }
.stepper li.done .dot { background: var(--bisotun-success); border-color: var(--bisotun-success); color: var(--bisotun-card); }
.stepper li.done::after { background: var(--bisotun-success); }
.stepper li.current { color: var(--bisotun-ink); font-weight: 700; }
.stepper li.current .dot { border-color: var(--bisotun-primary); background: var(--bisotun-primary); color: var(--bisotun-on-primary); box-shadow: 0 0 0 4px var(--tint-primary); }
.stepper li.failed .dot { border-color: var(--bisotun-error); background: var(--bisotun-error); color: var(--bisotun-card); }
.stepper li.failed { color: var(--bisotun-error); }
.step-caption { display: none; margin-block-start: 8px; font-weight: 600; font-size: .95rem; }

.statusbar { margin-block-start: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--bisotun-border); border: 1px solid var(--bisotun-border); border-radius: var(--bisotun-radius); overflow: hidden; }
.statusbar > div { background: var(--bisotun-surface); padding: 8px 12px; font-size: .9rem; }
.statusbar dt { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; color: var(--bisotun-ink-muted); display: flex; align-items: center; gap: 6px; }
.statusbar dd { margin: 0; }
.statusbar .now dd { font-weight: 600; }
.pulse { inline-size: 8px; block-size: 8px; border-radius: 50%; background: var(--bisotun-accent); display: inline-block; }
.statusbar[data-tone='busy'] .pulse { animation: pulse 1.4s ease-in-out infinite; }
.statusbar[data-tone='ok'] .pulse { background: var(--bisotun-success); }
.statusbar[data-tone='bad'] .pulse { background: var(--bisotun-error); }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.7); } }

.view { margin-block-start: 22px; }
.view > h2, .view-head h2 { font-size: 1.3rem; }
.view .lead { color: var(--bisotun-ink-muted); margin-block-start: 6px; }

/* scenarios */
.scenarios { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 14px; margin-block-start: 16px; }
.scenario { border: 1px solid var(--bisotun-border); border-radius: var(--bisotun-radius-card); padding: 16px; display: flex; flex-direction: column; gap: 8px; background: var(--bisotun-card); }
.scenario.primary { border: 2px solid var(--bisotun-primary); background: linear-gradient(180deg, var(--tint-primary), var(--bisotun-card) 55%); }
.scenario.soon { background: var(--bisotun-surface); }
.scenario h3 { font-size: 1.1rem; }
.scenario .desc { font-size: .95rem; }
.scenario dl { margin: 0; font-size: .88rem; display: grid; gap: 4px; }
.scenario dt { font-weight: 700; color: var(--bisotun-ink-muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
.scenario dd { margin: 0 0 4px; }
.scenario .spacer { flex: 1; }
.scenario .note { font-size: .88rem; color: var(--bisotun-warning); }
.badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge { font-size: .76rem; font-weight: 600; padding: 2px 10px; border-radius: 999px; background: var(--bisotun-surface-alt); color: var(--bisotun-ink); }
.badge.rec { background: var(--bisotun-primary); color: var(--bisotun-on-primary); }
.badge.warn { background: var(--tint-warning); color: var(--bisotun-warning); }

/* walkthrough */
.walk { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.walk li { background: var(--bisotun-surface); border-radius: var(--bisotun-radius-card); padding: 12px; font-size: .92rem; display: flex; flex-direction: column; gap: 6px; }
.walk img { block-size: 96px; align-self: center; }
.walk .n { font-weight: 700; color: var(--bisotun-primary); }
.callout { margin-block-start: 14px; padding: 12px 14px; border-radius: var(--bisotun-radius); background: var(--tint-warning); border-inline-start: 4px solid var(--bisotun-warning); font-size: .93rem; }
.callout.info { background: var(--tint-primary); border-color: var(--bisotun-primary); }

/* session / QR */
.session { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 24px; align-items: start; }
.micro h2 { font-size: 1.3rem; }
.micro p { margin-block-start: 6px; }
.scan-does { margin-block-start: 14px; font-weight: 600; display: flex; gap: 8px; align-items: flex-start; }
.scan-does svg { flex: none; inline-size: 22px; block-size: 22px; color: var(--bisotun-primary); margin-block-start: 2px; }
.qr-box { margin-block-start: 10px; display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 16px; background: var(--bisotun-surface); border-radius: var(--bisotun-radius-card); }
#bisotun-qr { inline-size: 100%; max-inline-size: 280px; min-block-size: 120px; }
#bisotun-qr.bisotun-minimal { background: transparent; inline-size: 100%; block-size: auto; min-block-size: 120px; }
.qr-box.is-qr #bisotun-qr.bisotun-minimal { max-inline-size: 284px; }
.qr-box.is-qr #bisotun-qr { background: #fff; padding: 10px; border-radius: 12px; border: 1px solid var(--bisotun-border); }
.qr-meta { font-size: .88rem; color: var(--bisotun-ink-muted); text-align: center; }
.qr-meta.soon { color: var(--bisotun-warning); font-weight: 600; }
.qr-hint { font-size: .9rem; color: var(--bisotun-ink-muted); text-align: center; }
.aside-card { border: 1px solid var(--bisotun-border); border-radius: var(--bisotun-radius-card); padding: 14px 16px; }
.aside-card + .aside-card { margin-block-start: 12px; }
.aside-card h3 { font-size: 1rem; margin-block-end: 6px; }
.aside-card ul { margin: 0; padding-inline-start: 20px; font-size: .92rem; display: grid; gap: 4px; }
.aside-card p { font-size: .92rem; }
.preview-img { display: block; block-size: 110px; margin: 0 auto 8px; }

/* processing */
.connected { display: inline-flex; align-items: center; gap: 8px; padding: 4px 12px; border-radius: 999px; background: var(--tint-success); color: var(--bisotun-success); font-weight: 700; font-size: .88rem; margin-block-end: 10px; }
.review { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-block-start: 16px; }
.review > div { background: var(--bisotun-surface); border-radius: var(--bisotun-radius-card); padding: 14px; display: flex; gap: 12px; align-items: flex-start; }
.review img { block-size: 90px; flex: none; }
.review h3 { font-size: 1rem; display: flex; gap: 8px; align-items: center; }
.review .n { display: inline-grid; place-items: center; inline-size: 26px; block-size: 26px; border-radius: 50%; background: var(--bisotun-primary); color: var(--bisotun-on-primary); font-size: .85rem; }
.review p { font-size: .93rem; margin-block-start: 4px; }
.waiting-dots { display: inline-flex; gap: 4px; margin-inline-start: 4px; }
.waiting-dots i { inline-size: 6px; block-size: 6px; border-radius: 50%; background: currentColor; animation: pulse 1.2s infinite; }
.waiting-dots i:nth-child(2) { animation-delay: .2s; } .waiting-dots i:nth-child(3) { animation-delay: .4s; }

/* results */
.result { display: grid; grid-template-columns: auto 1fr; gap: 20px; align-items: start; }
.result .icon { inline-size: 64px; block-size: 64px; border-radius: 50%; display: grid; place-items: center; }
.result .icon svg { inline-size: 34px; block-size: 34px; }
.result.ok .icon { background: var(--tint-success); color: var(--bisotun-success); }
.result.bad .icon { background: var(--tint-error); color: var(--bisotun-error); }
.result.warn .icon { background: var(--tint-warning); color: var(--bisotun-warning); }
.result h2 { font-size: 1.45rem; }
.result.ok h2 { color: var(--bisotun-success); }
.value { margin-block-start: 10px; padding: 12px 14px; border-radius: var(--bisotun-radius); background: var(--bisotun-surface); border: 1px solid var(--bisotun-border); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 1.05rem; font-weight: 600; overflow-wrap: anywhere; direction: ltr; text-align: start; unicode-bidi: isolate; }
.checks { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 8px; }
.checks li { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; }
.checks svg { flex: none; inline-size: 20px; block-size: 20px; color: var(--bisotun-success); margin-block-start: 3px; }
.small { font-size: .88rem; color: var(--bisotun-ink-muted); margin-block-start: 8px; }

.spinner { inline-size: 40px; block-size: 40px; border-radius: 50%; border: 4px solid var(--bisotun-border); border-block-start-color: var(--bisotun-primary); animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.center { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; padding-block: 24px; }

/* no wallet */
.nowallet { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: center; background: var(--bisotun-card); border: 1px solid var(--bisotun-border); border-radius: var(--bisotun-radius-card); padding: 18px 20px; }
.nowallet h2 { font-size: 1.15rem; }
.nowallet p { margin-block-start: 6px; font-size: .95rem; }
.nowallet .note { color: var(--bisotun-ink-muted); font-size: .88rem; }
.nowallet figure { margin: 0; text-align: center; inline-size: 150px; }
.nowallet figure img { inline-size: 132px; block-size: 132px; background: #fff; padding: 4px; border-radius: 10px; border: 1px solid var(--bisotun-border); }
.nowallet figcaption { font-size: .78rem; color: var(--bisotun-ink-muted); line-height: 1.4; }
.nowallet-inline { margin-block-start: 12px; font-size: .92rem; }

footer { padding-block: 24px 40px; color: var(--bisotun-ink-muted); font-size: .88rem; }
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between; }

/* widget (minimal) tweaks: widget texts on mobile use our fonts/colours */
#bisotun-qr .bisotun-button { font-family: var(--bisotun-font-family); }
#bisotun-qr .bisotun-centered { block-size: auto !important; min-block-size: 0; padding-block: 4px; }
#bisotun-qr .bisotun-qr-code { inline-size: 100%; max-inline-size: 260px; block-size: auto; aspect-ratio: 1; margin-inline: auto; }
#bisotun-qr .bisotun-qr-code svg { inline-size: 100%; block-size: auto; }
#bisotun-qr p { display: block !important; margin: 12px 0 0; text-align: center; }
#bisotun-qr .bisotun-button-tertiary { font: inherit; font-size: .92rem; color: var(--bisotun-link); background: none; border: 0; text-decoration: underline; cursor: pointer; min-block-size: 44px; padding-inline: 8px; }

/* ---------- responsive */
@media (max-width: 900px) {
  .scenarios { grid-template-columns: 1fr; }
  .walk { grid-template-columns: 1fr 1fr; }
  .session { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .how { grid-template-columns: 1fr; }
  .how li { flex-direction: row; flex-wrap: wrap; align-items: center; }
  .how img { block-size: 72px; margin: 0; }
  .how li > div { flex: 1 1 180px; }
  .how li:not(:last-child)::after { inset-inline-end: auto; inset-inline-start: 50%; inset-block-start: auto; inset-block-end: -11px; transform: rotate(135deg); }
  [dir='rtl'] .how li:not(:last-child)::after { transform: rotate(135deg); }
  .what .cols { grid-template-columns: 1fr; }
  .stepper .lbl { display: none; }
  .step-caption { display: block; }
  .statusbar { grid-template-columns: 1fr; }
  .review { grid-template-columns: 1fr; }
  .nowallet { grid-template-columns: 1fr; }
  .nowallet figure { display: none; }
  .demo { padding: 16px; border-radius: 16px; }
  .result { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .walk { grid-template-columns: 1fr; }
  .review img { block-size: 64px; }
  .btn { inline-size: 100%; }
  .actions .btn-link { inline-size: auto; }
}
/* phones (touch-only) don't need the download QR */
@media (hover: none) and (pointer: coarse) { .nowallet figure { display: none; } }

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