/* CharteredX website. Colours follow the app's tokens (static/css/tokens.css, "Ledger Calm"). */
:root {
  --navy: #0F2557; --navy-2: #1A3470; --ink: #101828; --ink-2: #344054; --ink-3: #667085;
  --bg: #FFFFFF; --bg-2: #F7F8FA; --bg-3: #EEF1F8; --line: #E4E7EC; --line-2: #D0D5DD;
  --accent: #C2410C; --accent-2: #F97316; --accent-soft: #FFF4EC;
  --ok: #067647; --ok-bg: #ECFDF3; --info: #175CD3; --info-bg: #EFF8FF; --warn: #B54708; --warn-bg: #FFFAEB;
  --card: #FFFFFF; --shadow: 0 1px 2px rgba(16,24,40,.05), 0 8px 24px rgba(16,24,40,.06);
  --r: 12px; --wrap: 1160px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --navy: #8FB0F0; --navy-2: #B5CBF6; --ink: #ECEFF5; --ink-2: #C5CBD6; --ink-3: #98A2B3;
    --bg: #0B1220; --bg-2: #0F172A; --bg-3: #131D33; --line: #22304A; --line-2: #2E3E5C;
    --accent: #FB923C; --accent-2: #FDBA74; --accent-soft: #2A1A10;
    --ok: #4ADE80; --ok-bg: #0F2A1C; --info: #7CB4FF; --info-bg: #10223D; --warn: #FBBF24; --warn-bg: #2A2110;
    --card: #111A2E; --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 28px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }
body { margin: 0; font: 16px/1.6 var(--font); color: var(--ink); background: var(--bg); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.02em; color: var(--ink); margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4.2vw, 3.25rem); font-weight: 750; }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.25rem); font-weight: 720; }
h3 { font-size: 1.15rem; font-weight: 650; }
p { margin: 0 0 1em; color: var(--ink-2); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--card); padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 12px; }

/* Header */
.hdr { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.hdr .wrap { display: flex; align-items: center; gap: 24px; height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 750; font-size: 1.15rem; letter-spacing: -.02em; }
.brand .mark { width: 32px; height: 32px; border-radius: 8px; background: #0F2557; display: grid; place-items: center; color: #F97316; font-weight: 900; font-size: 19px; }
.brand .x { color: var(--accent-2); }
.brand sup { font-size: .55em; font-weight: 600; color: var(--ink-3); margin-left: 1px; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a { text-decoration: none; color: var(--ink-2); font-weight: 550; font-size: .95rem; padding: 8px 12px; border-radius: 8px; }
.nav a:hover { background: var(--bg-3); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--navy); background: var(--bg-3); }
.nav a.btn-primary, .nav a.btn-primary:hover { color: #fff; background: #0F2557; }
@media (prefers-color-scheme: dark) { .nav a.btn-primary, .nav a.btn-primary:hover { color: #1b0d03; background: #F97316; } }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--line-2); border-radius: 8px; padding: 8px 10px; color: var(--ink); font: inherit; cursor: pointer; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 650; font-size: .98rem; padding: 12px 20px; border-radius: 10px; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; }
.btn-primary { background: #0F2557; color: #fff; box-shadow: 0 6px 18px rgba(15,37,87,.25); }
.btn-primary:hover { background: #1A3470; transform: translateY(-1px); }
.btn-ghost { background: var(--card); color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--navy); }
.btn-sm { padding: 8px 14px; font-size: .9rem; }
@media (prefers-color-scheme: dark) { .btn-primary { background: #F97316; color: #1b0d03; box-shadow: none; } .btn-primary:hover { background: #FDBA74; } }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 72px 0 40px; background:
  radial-gradient(900px 420px at 85% -10%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 70%),
  radial-gradient(800px 500px at -10% 10%, color-mix(in srgb, var(--info) 14%, transparent), transparent 70%), var(--bg); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: .82rem; font-weight: 650; letter-spacing: .02em; color: var(--accent); background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent-2) 35%, transparent); padding: 5px 12px; border-radius: 999px; margin-bottom: 18px; }
.hero h1 { max-width: 880px; }
.hero .lede { font-size: 1.2rem; max-width: 720px; color: var(--ink-2); }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0 10px; }
.hero-note { font-size: .9rem; color: var(--ink-3); }
.shot { margin-top: 44px; border-radius: 16px; border: 1px solid var(--line); background: var(--card); box-shadow: 0 30px 80px rgba(15,37,87,.18); overflow: hidden; }
.shot .bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--bg-2); font-size: .8rem; color: var(--ink-3); }
.shot .bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-2); }
.shot .bar span { margin-left: 10px; }
.caption { font-size: .85rem; color: var(--ink-3); margin-top: 10px; text-align: center; }

/* Sections */
section { padding: 76px 0; }
.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { max-width: 720px; margin-bottom: 36px; }
.sec-head .kicker { font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin-bottom: 8px; }
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; box-shadow: var(--shadow); }
.card p:last-child { margin-bottom: 0; }
.card .ic { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; margin-bottom: 14px; }
.card .ic svg { width: 22px; height: 22px; }
.ic.blue { background: var(--info-bg); color: var(--info); } .ic.green { background: var(--ok-bg); color: var(--ok); }
.ic.orange { background: var(--accent-soft); color: var(--accent); } .ic.purple { background: color-mix(in srgb, #7C3AED 14%, transparent); color: #7C3AED; }
@media (prefers-color-scheme: dark) { .ic.purple { color: #C4B5FD; } }
.status { display: inline-block; font-size: .75rem; font-weight: 700; padding: 3px 9px; border-radius: 999px; margin-bottom: 10px; }
.st-live { background: var(--ok-bg); color: var(--ok); } .st-build { background: var(--warn-bg); color: var(--warn); } .st-plan { background: var(--bg-3); color: var(--ink-3); }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ticks li { position: relative; padding-left: 26px; color: var(--ink-2); }
.ticks li::before { content: ""; position: absolute; left: 0; top: .45em; width: 16px; height: 16px; border-radius: 50%; background: var(--ok-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' stroke='%23067647' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat; }
.steps { counter-reset: s; }
.step { position: relative; padding-top: 52px; }
.step::before { counter-increment: s; content: counter(s); position: absolute; top: 0; left: 22px; width: 36px; height: 36px; border-radius: 10px; background: #0F2557; color: #fff; font-weight: 750; display: grid; place-items: center; top: 22px; }
.step { padding-top: 70px; }
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.split.rev > :first-child { order: 2; }
.frame { border-radius: 14px; border: 1px solid var(--line); overflow: hidden; box-shadow: var(--shadow); background: var(--card); }
.levels { counter-reset: l; display: grid; gap: 10px; margin: 18px 0 0; padding: 0; list-style: none; }
.levels li { display: flex; gap: 12px; align-items: baseline; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink-2); }
.levels li::before { counter-increment: l; content: "L" counter(l); font-weight: 750; font-size: .8rem; color: var(--accent); min-width: 22px; }
.levels b { color: var(--ink); }
.band { background: #0F2557; color: #fff; border-radius: 20px; padding: 48px; display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.band h2, .band p { color: #fff; } .band p { opacity: .85; margin: 0; }
.band .btn-primary { background: #F97316; color: #1b0d03; box-shadow: none; }
.band .btn-primary:hover { background: #FDBA74; }
@media (prefers-color-scheme: dark) { .band { background: #13254d; border: 1px solid var(--line-2); } }
.note { font-size: .9rem; color: var(--ink-3); border-left: 3px solid var(--line-2); padding: 4px 0 4px 14px; }
.page-hero { padding: 64px 0 28px; background: linear-gradient(180deg, var(--bg-3), var(--bg)); border-bottom: 1px solid var(--line); }
.page-hero .lede { font-size: 1.15rem; max-width: 760px; }
.prose { max-width: 780px; }
.prose h2 { font-size: 1.4rem; margin-top: 1.8em; }
.prose ul { color: var(--ink-2); padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }
.mail { font-size: 1.35rem; font-weight: 700; }
dl.facts { display: grid; grid-template-columns: 200px 1fr; gap: 10px 20px; margin: 0; }
dl.facts dt { font-weight: 650; color: var(--ink); } dl.facts dd { margin: 0; color: var(--ink-2); }

/* Footer */
.ftr { border-top: 1px solid var(--line); background: var(--bg-2); padding: 48px 0 32px; font-size: .92rem; }
.ftr .cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 28px; }
.ftr h4 { margin: 0 0 10px; font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); }
.ftr ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ftr a { color: var(--ink-2); text-decoration: none; } .ftr a:hover { color: var(--navy); text-decoration: underline; }
.legal-line { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: .82rem; }
.legal-line p { color: var(--ink-3); margin: 0 0 .4em; }

@media (max-width: 980px) {
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g3 { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; } .split.rev > :first-child { order: 0; }
  .ftr .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .menu-btn { display: inline-flex; }
  .nav { display: none; position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--bg); border-bottom: 1px solid var(--line); padding: 10px 16px 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 12px; }
  .hdr .wrap { position: relative; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .hero { padding-top: 48px; }
  .band { padding: 30px 22px; }
  dl.facts { grid-template-columns: 1fr; gap: 2px 0; } dl.facts dd { margin-bottom: 10px; }
  .ftr .cols { grid-template-columns: 1fr; }
  .wrap { padding: 0 16px; }
}