:root {
  --bg: #0f1720;
  --bg-soft: #162231;
  --panel: rgba(16, 25, 36, 0.88);
  --panel-strong: rgba(9, 16, 25, 0.96);
  --line: rgba(183, 208, 235, 0.14);
  --text: #ecf4fb;
  --muted: #9cb2c8;
  --accent: #81f0cf;
  --accent-strong: #47caa0;
  --warning: #ffcb77;
  --danger: #ff8f8f;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(129, 240, 207, 0.1), transparent 32%),
    radial-gradient(circle at top right, rgba(119, 163, 255, 0.1), transparent 28%),
    linear-gradient(180deg, #081018 0%, var(--bg) 100%);
  color: var(--text);
  font-family: "IBM Plex Sans", sans-serif;
}

body {
  padding: 32px;
}

.page-shell {
  max-width: 1440px;
  margin: 0 auto;
}

.hero-panel,
.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-panel {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 32px;
  border-radius: 28px;
  margin-bottom: 24px;
}

.hero-copy h1,
.panel-header h2,
.result-block-header h3 {
  margin: 0;
  font-family: "DM Serif Display", serif;
  font-weight: 400;
}

.hero-copy h1 {
  max-width: 760px;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.eyebrow,
.section-kicker,
.caption,
.hero-badge-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-text,
.status-text,
.empty-state,
.item-subtitle,
.item-meta {
  color: var(--muted);
}

.hero-badge {
  align-self: flex-start;
  min-width: 240px;
  padding: 18px 20px;
  border: 1px solid rgba(129, 240, 207, 0.18);
  border-radius: 22px;
  background: rgba(129, 240, 207, 0.06);
}

.hero-badge strong {
  display: block;
  font-size: 1.2rem;
  line-height: 1.25;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(320px, 440px) minmax(0, 1fr);
  gap: 24px;
}

.panel {
  border-radius: 26px;
  padding: 24px;
}

.panel-header,
.result-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.sample-controls {
  display: flex;
  gap: 10px;
  align-items: center;
}

.sample-select {
  min-width: 260px;
  border: 1px solid rgba(156, 178, 200, 0.18);
  border-radius: 999px;
  background: rgba(9, 16, 25, 0.7);
  color: var(--text);
  padding: 10px 14px;
  font: inherit;
}

.billing-form {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 10px;
}

.field span {
  font-size: 0.9rem;
  color: var(--muted);
}

.field textarea,
.field input,
.field select {
  width: 100%;
  border: 1px solid rgba(156, 178, 200, 0.18);
  border-radius: 16px;
  background: rgba(9, 16, 25, 0.7);
  color: var(--text);
  padding: 14px 16px;
  font: inherit;
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.field textarea {
  resize: vertical;
  min-height: 220px;
}

.field textarea:focus,
.field input:focus,
.field select:focus {
  outline: none;
  border-color: rgba(129, 240, 207, 0.65);
  box-shadow: 0 0 0 4px rgba(129, 240, 207, 0.1);
}

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

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.search-form {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  margin: 14px 0 6px;
}

.search-field {
  flex: 1;
}

.search-form .primary-button {
  white-space: nowrap;
}

#search-results {
  margin-top: 14px;
}

.variant-table {
  width: 100%;
  border-collapse: collapse;
  margin: 10px 0 4px;
  font-size: 0.85rem;
}

.variant-table th,
.variant-table td {
  text-align: left;
  padding: 6px 10px;
  border-bottom: 1px solid rgba(156, 178, 200, 0.12);
}

.variant-table th {
  color: var(--muted);
  font-weight: 600;
}

.variant-table .variant-code {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.variant-table .variant-amount {
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 720px) {
  .search-form {
    flex-direction: column;
    align-items: stretch;
  }
}

.primary-button,
.ghost-button {
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 140ms ease, opacity 140ms ease, border-color 140ms ease;
}

.primary-button {
  border: none;
  background: linear-gradient(135deg, var(--accent) 0%, #baf8e4 100%);
  color: #082019;
}

.ghost-button {
  border: 1px solid rgba(156, 178, 200, 0.18);
  background: transparent;
  color: var(--text);
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.primary-button:disabled {
  opacity: 0.6;
  cursor: progress;
}

.response-content {
  display: grid;
  gap: 20px;
}

.hidden {
  display: none;
}

.empty-state {
  padding: 18px;
  border: 1px dashed rgba(156, 178, 200, 0.18);
  border-radius: 18px;
  background: rgba(9, 16, 25, 0.42);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-card,
.result-block,
.item-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(9, 16, 25, 0.5);
}

.stat-card {
  padding: 16px 18px;
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 10px;
}

.stat-card strong {
  display: block;
  font-size: 1.3rem;
}

.result-block {
  padding: 18px;
}

.split-block {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.debug-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.debug-grid h4 {
  margin: 0 0 12px;
  font-size: 0.94rem;
}

.stack-list {
  display: grid;
  gap: 12px;
}

.stack-list.compact {
  gap: 10px;
}

.item-card {
  padding: 14px 16px;
}

.item-card header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.item-title {
  margin: 0;
  font-size: 1rem;
}

.item-subtitle,
.item-meta {
  font-size: 0.9rem;
  line-height: 1.45;
}

.item-list {
  margin: 6px 0 10px;
  padding-left: 20px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.item-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  background: rgba(156, 178, 200, 0.1);
  color: var(--text);
}

.chip.success {
  background: rgba(129, 240, 207, 0.14);
  color: var(--accent);
}

.chip.warning {
  background: rgba(255, 203, 119, 0.14);
  color: var(--warning);
}

.chip.danger {
  background: rgba(255, 143, 143, 0.14);
  color: var(--danger);
}

.raw-response {
  margin: 0;
  padding: 18px;
  overflow: auto;
  border-radius: 16px;
  background: var(--panel-strong);
  color: #d6e9fa;
  font-size: 0.85rem;
  line-height: 1.55;
}

@media (max-width: 1120px) {
  .workspace-grid,
  .split-block,
  .debug-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  body {
    padding: 18px;
  }

  .hero-panel,
  .panel {
    padding: 18px;
    border-radius: 22px;
  }

  .hero-panel,
  .form-actions,
  .field-grid,
  .summary-grid,
  .sample-controls {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }

  .hero-badge {
    min-width: 0;
  }
}