:root {
  --bg: #0f1113;
  --panel: rgba(17, 20, 24, 0.9);
  --panel-line: rgba(246, 241, 231, 0.14);
  --ink: #f6f1e7;
  --muted: #99a3a4;
  --amber: #ffb000;
  --cyan: #59c9ff;
  --green: #42d483;
  --red: #ff6157;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  display: grid;
  place-items: center;
  padding: 24px;
  color: var(--ink);
  font-family: "Bahnschrift", "Aptos", sans-serif;
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 176, 0, 0.18), transparent 24rem),
    radial-gradient(circle at 100% 18%, rgba(89, 201, 255, 0.12), transparent 20rem),
    linear-gradient(155deg, #0d1012 0%, #14181b 45%, #0f1317 100%);
}

.viewer-shell {
  display: grid;
  gap: 18px;
  width: min(100%, 980px);
}

.viewer-header,
.viewer-panel {
  border: 1px solid var(--panel-line);
  border-radius: 20px;
  background: var(--panel);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(22px);
}

.viewer-header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 18px;
  color: #18140b;
  background: linear-gradient(145deg, #ffb000, #f3df9b);
  font-size: 27px;
  font-weight: 800;
}

.hero-copy {
  display: grid;
  gap: 6px;
}

.eyebrow,
.hero-text,
.status-text,
.viewer-note {
  margin: 0;
}

.eyebrow {
  color: var(--amber);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
.section-title {
  margin: 0;
}

h1 {
  font-size: clamp(32px, 5vw, 46px);
  line-height: 1;
}

.hero-text {
  max-width: 42rem;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.viewer-panel {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.status-row,
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.status-pill,
.meta-pill {
  border: 1px solid var(--panel-line);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
}

.status-pill {
  color: #0f160f;
  background: var(--green);
  font-weight: 800;
}

.status-pill.is-pending {
  color: #1c1408;
  background: var(--amber);
}

.status-pill.is-error {
  color: #1d0906;
  background: var(--red);
}

.status-text {
  color: var(--muted);
  font-size: 15px;
}

.meta-pill {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.04);
}

.section-title {
  font-size: 18px;
}

.symbol-sequence {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 18px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.sequence-slot {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  min-height: 88px;
  border: 1px solid rgba(246, 241, 231, 0.14);
  border-radius: 18px;
  color: rgba(246, 241, 231, 0.95);
  background: rgba(255, 255, 255, 0.04);
}

.sequence-slot.is-filled {
  border-color: rgba(255, 176, 0, 0.38);
  background: linear-gradient(145deg, rgba(255, 176, 0, 0.18), rgba(89, 201, 255, 0.12));
}

.sequence-slot.is-empty {
  opacity: 0.56;
}

.expiry-track {
  overflow: hidden;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.expiry-track.is-hidden {
  visibility: hidden;
}

.expiry-fill {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  transform-origin: left center;
  transform: scaleX(0);
}

.viewer-note {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

svg {
  width: 62%;
  height: 62%;
  fill: none;
  stroke: currentColor;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 720px) {
  body {
    padding: 16px;
  }

  .viewer-header,
  .viewer-panel {
    padding: 18px;
    border-radius: 18px;
  }

  .viewer-header {
    align-items: start;
  }

  .brand-mark {
    width: 58px;
    height: 58px;
    border-radius: 16px;
    font-size: 22px;
  }

  .symbol-sequence {
    gap: 10px;
  }

  .sequence-slot {
    min-height: 62px;
    border-radius: 14px;
  }
}