/* black.u.cash tier identity — "the manifest".
   Institutional-terminal layer over the shared price skeleton (cdn libs/3
   site-black.css owns nav, footer, theme-switch, base type). Obsidian ink,
   mono microlabels, manifest rows, clearance card. Fleet laws: uc-* tokens,
   [data-theme] driven, zero JS. Light theme = the printed manifest. */

[data-theme="dark"] body.pg-black { --uc-surface:#0a0a0d; --uc-surface-2:#101015; --uc-border:#26262d; --uc-radius:4px; }
[data-theme="light"] body.pg-black { --uc-surface:#fafafa; --uc-surface-2:#f1f1f3; --uc-border:#d8d8de; --uc-radius:4px; }

body.pg-black {
  --tier-hairline: var(--uc-border);
  background:
    radial-gradient(1300px 700px at 50% -22%, color-mix(in srgb, var(--uc-accent) 5%, transparent), transparent 60%),
    var(--uc-surface);
}
/* faint scanlines over everything (overlay blend reads on both themes) */
body.pg-black::after {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .35;
  background: repeating-linear-gradient(0deg, transparent 0 2px, color-mix(in srgb, currentColor 1.4%, transparent) 2px 3px);
}
body.pg-black main, body.pg-black .footer { position: relative; z-index: 1; }

/* ---------- ticker strip ---------- */
.strip { border-bottom: 1px solid var(--uc-border); background: var(--uc-surface-2); overflow: hidden; }
.strip-track { display: flex; gap: 0; width: max-content; animation: ticker 44s linear infinite; }
.strip-track span { display: inline-flex; align-items: center; gap: 10px; padding: 11px 26px 11px 0;
  font: 500 11px/1 var(--uc-mono); letter-spacing: .2em; text-transform: uppercase; color: var(--uc-text-dim); white-space: nowrap; }
.strip-track span::after { content: ""; width: 4px; height: 4px; background: var(--uc-accent); opacity: .7; }
@keyframes ticker { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .strip-track { animation: none; } }

/* ---------- hero: clearance card left, headline right ---------- */
.tier-hero { padding: 72px 0 44px; }
.tier-hero-grid { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); gap: clamp(28px, 5vw, 60px); align-items: center; }
.tier-hero .eyebrow { justify-content: flex-start; }
.tier-hero .eyebrow .dot { background: var(--uc-accent); }
.tier-hero h1 { text-align: left; letter-spacing: -.035em; max-width: 12ch; }
.tier-hero .lead { text-align: left; margin: 18px 0 0; max-width: 58ch; }
.tier-cta-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin-top: 32px; }
.tier-note { font-size: 13px; color: var(--uc-text-dim); margin: 0; }

/* clearance card */
.clearance { position: relative; border: 1px solid var(--uc-border); background: var(--uc-surface-2);
  padding: 26px 26px 22px; max-width: 400px; }
.cx { position: absolute; width: 12px; height: 12px; color: var(--uc-accent); }
.cx-tl { top: -1px; left: -1px; border-top: 2px solid currentColor; border-left: 2px solid currentColor; }
.cx-tr { top: -1px; right: -1px; border-top: 2px solid currentColor; border-right: 2px solid currentColor; }
.cx-bl { bottom: -1px; left: -1px; border-bottom: 2px solid currentColor; border-left: 2px solid currentColor; }
.cx-br { bottom: -1px; right: -1px; border-bottom: 2px solid currentColor; border-right: 2px solid currentColor; }
.clear-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 0 0 6px;
  font: 700 12px/1 var(--uc-mono); letter-spacing: .26em; text-transform: uppercase; }
.clear-head .live-dot { color: var(--uc-success); }
.clear-sub { margin: 0 0 16px; font: 500 10.5px/1.5 var(--uc-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--uc-text-dim); }
.clear-row { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; padding: 10px 0;
  border-bottom: 1px dashed color-mix(in srgb, var(--uc-border) 85%, transparent); }
.clear-k { font: 500 11px/1.6 var(--uc-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--uc-text-dim); }
.clear-v { font: 600 12px/1.6 var(--uc-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--uc-text); text-align: right; }
.clear-barcode { height: 34px; margin-top: 18px; color: var(--uc-text); opacity: .8;
  background: repeating-linear-gradient(90deg, currentColor 0 2px, transparent 2px 5px, currentColor 5px 6px, transparent 6px 12px, currentColor 12px 15px, transparent 15px 18px, currentColor 18px 19px, transparent 19px 26px); }

/* sharp CTA */
.btn-tier { display: inline-flex; align-items: center; gap: 10px; padding: 15px 26px; border-radius: 3px;
  font: 800 14px/1 var(--uc-font); letter-spacing: .03em; text-transform: uppercase; text-decoration: none;
  color: #121212; background: var(--uc-accent); border: 1px solid color-mix(in srgb, var(--uc-accent) 60%, #f0d9a0);
  box-shadow: 0 10px 30px color-mix(in srgb, var(--uc-accent) 22%, transparent); }
.btn-tier:hover { text-decoration: none; filter: brightness(1.07); }
.btn-tier:focus-visible { outline: 2px solid var(--uc-accent); outline-offset: 3px; }
.btn-tier::after { content: "\2192"; font-size: 14px; }

/* ---------- kicker + section titles ---------- */
.kicker { display: flex; align-items: center; gap: 16px; margin: 0 0 10px;
  font: 600 11px/1 var(--uc-mono); letter-spacing: .26em; text-transform: uppercase; color: var(--uc-text-dim); }
.kicker::before { content: "//"; color: var(--uc-accent); letter-spacing: 0; }
.kicker::after { content: ""; height: 1px; flex: 1; background: var(--tier-hairline); }
.section-title { font-size: clamp(26px, 4vw, 38px); font-weight: 800; letter-spacing: -.025em; margin: 0 0 28px; }

/* ---------- the manifest (rails as manifest rows) ---------- */
.manifest { padding: 64px 0 10px; }
.manifest-row { display: grid; grid-template-columns: 86px minmax(0, 1fr) auto; gap: 18px; align-items: baseline;
  padding: 21px 6px; border-top: 1px solid var(--tier-hairline); transition: background .18s ease; }
.manifest-row:last-of-type { border-bottom: 1px solid var(--tier-hairline); }
.manifest-row:hover { background: linear-gradient(90deg, color-mix(in srgb, var(--uc-accent) 5%, transparent), transparent 70%); }
.manifest-ref { font: 500 12px/1.7 var(--uc-mono); letter-spacing: .14em; color: var(--uc-accent); }
.manifest-row h3 { margin: 0 0 5px; font-size: 16.5px; font-weight: 700; }
.manifest-row p { margin: 0; font-size: 14.5px; line-height: 1.65; color: var(--uc-text-dim); max-width: 66ch; }
.manifest-status { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  font: 600 10.5px/1 var(--uc-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--uc-text-dim); }
.manifest-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--uc-success);
  box-shadow: 0 0 10px color-mix(in srgb, var(--uc-success) 70%, transparent); }

/* ---------- authorization steps (terminal blocks) ---------- */
.auth { padding: 64px 0 26px; }
.auth-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.auth-block { position: relative; border: 1px solid var(--uc-border); background: var(--uc-surface-2);
  border-radius: var(--uc-radius); padding: 20px 22px 22px; overflow: hidden; }
.auth-block::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--uc-accent), transparent 70%); opacity: 0; transition: opacity .18s ease; }
.auth-block:hover::before { opacity: 1; }
.auth-prompt { display: flex; justify-content: space-between; gap: 12px; margin: 0 0 14px;
  font: 600 11px/1 var(--uc-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--uc-accent); }
.auth-prompt .step-no { color: var(--uc-text-dim); }
.auth-block h3 { margin: 0 0 8px; font-size: 15.5px; font-weight: 700; }
.auth-block p { margin: 0; font-size: 14.5px; line-height: 1.65; color: var(--uc-text-dim); }

/* ---------- close ---------- */
.tier-close { padding: 80px 0 96px; text-align: center; }
.tier-close .wrap { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.tier-close p { margin: 0; max-width: 56ch; color: var(--uc-text-dim); font-size: 15px; }

/* ---------- responsive ---------- */
@media (max-width: 920px) {
  .tier-hero { padding-top: 52px; }
  .tier-hero-grid { grid-template-columns: 1fr; }
  .clearance { margin-inline: auto; }
  .auth-grid { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .manifest-row { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .manifest-status { margin-top: 6px; }
}