/* price.u.cash site styles, layered on U.CASH DS 3 tokens (cdn.u.cash/ds/3).
 * Theme bridge: DS tokens flip via light-dark() against color-scheme, so data-theme
 * (always resolved to dark|light by js/boot.js, hub convention) drives color-scheme. */

:root, [data-theme="dark"] { color-scheme: dark; }
[data-theme="light"] { color-scheme: light; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--uc-font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--uc-text);
  background: var(--uc-surface);
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: var(--uc-mono, "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace); }
.muted { color: var(--uc-text-dim); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
a { color: var(--uc-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* header */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--uc-surface) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--uc-border);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: inline-flex; align-items: center; }
.brand-logo { width: auto; display: block; }
.brand-logo.bl-light { display: none; }
[data-theme="light"] .brand-logo.bl-dark { display: none; }
[data-theme="light"] .brand-logo.bl-light { display: block; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--uc-text-dim); font-weight: 500; font-size: 14px; }
.nav-links a:hover { color: var(--uc-text); text-decoration: none; }
.nav-actions { display: flex; align-items: center; }

.theme-switch {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; padding: 0;
  background: transparent; color: var(--uc-text-dim);
  border: 1px solid var(--uc-border); border-radius: var(--uc-radius);
  cursor: pointer;
}
.theme-switch:hover { color: var(--uc-text); border-color: var(--uc-accent); }
.ts-ico { display: none; }
.theme-switch[data-uxc-theme="system"] .ts-auto,
.theme-switch[data-uxc-theme="light"] .ts-light,
.theme-switch[data-uxc-theme="dark"] .ts-dark { display: block; }

/* hero */
.hero { padding: 72px 0 44px; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  margin: 0 0 18px; font-size: 13px; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--uc-text-dim);
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--uc-success); }
h1 {
  margin: 0 0 16px; font-size: clamp(34px, 6vw, 54px);
  line-height: 1.08; font-weight: 800; letter-spacing: -0.02em;
}
.grad-gold {
  background: linear-gradient(135deg, var(--uc-accent), var(--uc-accent-hover));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { max-width: 640px; margin: 0 auto; color: var(--uc-text-dim); font-size: 17px; }
.lead strong { color: var(--uc-text); font-weight: 600; }

.meta-row {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 10px 26px; margin-top: 28px; font-size: 13px; color: var(--uc-text-dim);
}
.meta-item .mono { color: var(--uc-text); }
.live-dot {
  display: inline-block; width: 7px; height: 7px; margin-right: 2px;
  border-radius: 50%; background: currentColor;
  animation: uxpulse 2.4s ease-in-out infinite;
}
@keyframes uxpulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

/* price cards */
.prices { padding: 8px 0 10px; }
.cards {
  display: grid; grid-template-columns: 1fr 1fr; gap: 22px;
}
.price-card { border-top: 2px solid var(--uc-accent); }
.price-card-usage { border-top-color: var(--uc-success); }
.card-top {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.uc-card-title { margin: 0; font-size: 17px; font-weight: 700; }
.card-sub { margin: 4px 0 22px; font-size: 13.5px; color: var(--uc-text-dim); }
.big-price { margin: 0 0 10px; font-size: clamp(34px, 5vw, 46px); font-weight: 700; letter-spacing: -0.01em; }
.sats { margin: 0 0 18px; font-size: 15px; color: var(--uc-text-dim); }
.sats #uxc-market-sats, .sats #uxc-usage-sats { color: var(--uc-text); font-weight: 500; }
.card-note { margin: 0; padding-top: 14px; border-top: 1px dashed var(--uc-border); font-size: 13.5px; color: var(--uc-text-dim); }

.delta-row {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 22px;
}
.delta {
  padding: 14px 18px; border: 1px solid var(--uc-border); border-radius: var(--uc-radius);
  background: var(--uc-surface-2);
  display: flex; flex-direction: column; gap: 4px;
}
.delta-k { font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--uc-text-dim); }
.delta-v { font-size: 16px; font-weight: 600; }

/* explainer */
.explainer { padding: 64px 0 24px; }
.explainer h2 { margin: 0 0 28px; font-size: 26px; font-weight: 700; letter-spacing: -0.01em; }
.cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.col h3 { margin: 0 0 8px; font-size: 15px; font-weight: 700; color: var(--uc-accent); }
.col p { margin: 0; font-size: 14.5px; color: var(--uc-text-dim); }
.builders { margin-top: 36px; text-align: center; }
.builders p { margin: 0; color: var(--uc-text-dim); font-size: 14.5px; }
.chip {
  display: inline-block; padding: 3px 10px; margin: 0 2px;
  border: 1px solid var(--uc-border); border-radius: 999px;
  background: var(--uc-surface-2); font-size: 13px;
}

/* footer */
.footer { margin-top: 56px; border-top: 1px solid var(--uc-border); background: var(--uc-surface-2); }
.footer-inner {
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px;
  padding-top: 26px; padding-bottom: 26px;
}
.foot-links { display: flex; gap: 20px; }
.foot-links a { color: var(--uc-text-dim); font-size: 13.5px; }
.foot-links a:hover { color: var(--uc-text); text-decoration: none; }
.copy { margin: 0 0 0 auto; font-size: 13px; color: var(--uc-text-dim); }

/* retry state: values dim slightly while the poller cannot reach the api */
body.uxc-retrying .big-price, body.uxc-retrying .sats { opacity: .55; }

@media (max-width: 820px) {
  .cards { grid-template-columns: 1fr; }
  .delta-row { grid-template-columns: 1fr; }
  .cols { grid-template-columns: 1fr; }
  .hero { padding-top: 52px; }
  .nav-links { display: none; }
  .copy { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .live-dot { animation: none; }
}