:root {
  --gbt-ink: #17202a;
  --gbt-muted: #687386;
  --gbt-line: #e5dccb;
  --gbt-soft-line: #eadfcd;
  --gbt-paper: #fff;
  --gbt-wash: #f7f5ef;
  --gbt-chip: #f3efe6;
  --gbt-navy: #101827;
  --gbt-teal: #0f766e;
  --gbt-amber: #6b4e16;
  --gbt-danger: #9f1239;
  --gbt-radius: 12px;
  --gbt-shadow: 0 8px 22px rgba(17, 24, 39, 0.05);
}

.gbt-shell {
  color: var(--gbt-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
  margin: 0 auto;
  max-width: 1180px;
}

.gbt-hero {
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.16), rgba(107, 78, 22, 0.12)),
    var(--gbt-navy);
  border-radius: 16px;
  color: #fff;
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  overflow: hidden;
  padding: 30px;
  position: relative;
}

.gbt-hero::after {
  background:
    linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  content: "";
  inset: 0;
  opacity: 0.22;
  pointer-events: none;
  position: absolute;
}

.gbt-hero > * {
  position: relative;
  z-index: 1;
}

.gbt-eyebrow {
  color: #a7f3d0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
  text-transform: uppercase;
}

.gbt-hero h1,
.gbt-hero h2 {
  color: #fff;
  font-size: 30px;
  letter-spacing: 0;
  line-height: 1.15;
  margin: 0 0 12px;
}

.gbt-hero p {
  color: #dbe4ef;
  margin: 0;
  max-width: 720px;
}

.gbt-status-strip {
  align-self: end;
  display: grid;
  gap: 10px;
}

.gbt-status-pill {
  align-items: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  display: flex;
  gap: 10px;
  justify-content: space-between;
  min-height: 38px;
  padding: 7px 12px;
}

.gbt-status-pill b {
  color: #fff;
  font-size: 13px;
}

.gbt-status-pill span {
  color: #dbe4ef;
  font-size: 13px;
}

.gbt-toolbar {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  margin: 16px 0;
}

.gbt-note {
  background: var(--gbt-paper);
  border: 1px solid var(--gbt-soft-line);
  border-left: 5px solid var(--gbt-teal);
  border-radius: var(--gbt-radius);
  color: var(--gbt-muted);
  margin: 16px 0;
  padding: 13px 16px;
}

.gbt-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gbt-card {
  background: var(--gbt-paper);
  border: 1px solid var(--gbt-soft-line);
  border-radius: var(--gbt-radius);
  box-shadow: var(--gbt-shadow);
  padding: 18px;
}

.gbt-card h3 {
  color: var(--gbt-ink);
  font-size: 18px;
  line-height: 1.2;
  margin: 0 0 6px;
}

.gbt-card p {
  color: var(--gbt-muted);
  margin: 0 0 14px;
}

.gbt-form-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gbt-field {
  display: grid;
  gap: 5px;
}

.gbt-field.gbt-wide {
  grid-column: 1 / -1;
}

.gbt-field label {
  color: var(--gbt-muted);
  font-size: 12px;
  font-weight: 700;
}

.gbt-input,
.gbt-select {
  background: #fbfaf7;
  border: 1px solid var(--gbt-line);
  border-radius: 8px;
  color: var(--gbt-ink);
  font: inherit;
  min-height: 40px;
  padding: 8px 10px;
  width: 100%;
}

.gbt-input:focus,
.gbt-select:focus,
.gbt-button:focus {
  outline: 3px solid rgba(15, 118, 110, 0.24);
  outline-offset: 2px;
}

.gbt-result {
  background: #fbfaf7;
  border: 1px solid var(--gbt-line);
  border-radius: 10px;
  margin-top: 12px;
  min-height: 78px;
  padding: 12px;
}

.gbt-result b {
  display: block;
  font-size: 22px;
  line-height: 1.25;
  margin-bottom: 4px;
}

.gbt-result span,
.gbt-help {
  color: var(--gbt-muted);
  font-size: 13px;
}

.gbt-mini-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.gbt-mini-item {
  align-items: center;
  background: #fbfaf7;
  border: 1px solid var(--gbt-line);
  border-radius: 8px;
  display: flex;
  gap: 10px;
  justify-content: space-between;
  padding: 8px 10px;
}

.gbt-mini-item span {
  color: var(--gbt-muted);
  font-size: 13px;
}

.gbt-mini-item b {
  font-size: 14px;
  text-align: right;
}

.gbt-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.gbt-chip {
  background: var(--gbt-chip);
  border-radius: 999px;
  color: var(--gbt-amber);
  font-size: 12px;
  padding: 3px 9px;
}

.gbt-button {
  align-items: center;
  background: var(--gbt-navy);
  border: 0;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  font: inherit;
  font-weight: 700;
  gap: 8px;
  min-height: 40px;
  padding: 8px 12px;
}

.gbt-button.secondary {
  background: #fff;
  border: 1px solid var(--gbt-line);
  color: var(--gbt-ink);
}

.gbt-button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.gbt-clock-grid {
  display: grid;
  gap: 8px;
}

.gbt-clock-row {
  align-items: center;
  background: #fbfaf7;
  border: 1px solid var(--gbt-line);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  padding: 9px 10px;
}

.gbt-clock-row span {
  color: var(--gbt-muted);
  font-size: 13px;
}

.gbt-clock-row b {
  font-variant-numeric: tabular-nums;
}

.gbt-timeline {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.gbt-step {
  border-left: 3px solid var(--gbt-teal);
  padding-left: 10px;
}

.gbt-step b {
  display: block;
}

.gbt-step span {
  color: var(--gbt-muted);
  font-size: 13px;
}

.gbt-footnote {
  color: var(--gbt-muted);
  font-size: 12px;
  margin-top: 12px;
}

.gbt-toast {
  background: var(--gbt-navy);
  border-radius: 999px;
  bottom: 18px;
  color: #fff;
  font-size: 13px;
  left: 50%;
  opacity: 0;
  padding: 9px 14px;
  pointer-events: none;
  position: fixed;
  transform: translate(-50%, 12px);
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 30;
}

.gbt-toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 980px) {
  .gbt-hero {
    grid-template-columns: 1fr;
  }

  .gbt-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .gbt-hero {
    padding: 22px;
  }

  .gbt-hero h1,
  .gbt-hero h2 {
    font-size: 24px;
  }

  .gbt-grid,
  .gbt-form-grid {
    grid-template-columns: 1fr;
  }

  .gbt-field.gbt-wide {
    grid-column: auto;
  }

  .gbt-card {
    padding: 16px;
  }
}