:root {
  color-scheme: light;
  --bg: #f5f1e8;
  --bg-accent: radial-gradient(circle at top left, rgba(203, 145, 64, 0.22), transparent 32%), radial-gradient(circle at right 20%, rgba(85, 64, 38, 0.08), transparent 26%), linear-gradient(180deg, #f8f4ec 0%, #efe8dc 100%);
  --surface: rgba(255, 252, 245, 0.82);
  --surface-strong: rgba(255, 250, 240, 0.94);
  --surface-muted: rgba(119, 93, 55, 0.07);
  --surface-elevated: rgba(255, 255, 255, 0.74);
  --border: rgba(99, 76, 47, 0.14);
  --border-strong: rgba(145, 112, 68, 0.3);
  --text: #2f2518;
  --text-soft: #675641;
  --text-faint: #8d7a63;
  --accent: #c78d3d;
  --accent-strong: #9d6726;
  --accent-soft: rgba(199, 141, 61, 0.15);
  --good: #2f7d51;
  --bad: #b14b37;
  --warn: #b37a12;
  --shadow: 0 20px 60px rgba(79, 56, 25, 0.14);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font-sans: "Instrument Sans", "Noto Sans SC", "Noto Sans Thai", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", monospace;
}

body[data-theme="dark"] {
  color-scheme: dark;
  --bg: #1c1814;
  --bg-accent: radial-gradient(circle at top left, rgba(209, 160, 94, 0.24), transparent 24%), radial-gradient(circle at 85% 0%, rgba(255, 255, 255, 0.05), transparent 20%), linear-gradient(180deg, #1e1814 0%, #12100d 100%);
  --surface: rgba(34, 28, 22, 0.9);
  --surface-strong: rgba(39, 31, 24, 0.96);
  --surface-muted: rgba(255, 237, 212, 0.05);
  --surface-elevated: rgba(51, 41, 31, 0.72);
  --border: rgba(247, 220, 183, 0.1);
  --border-strong: rgba(209, 160, 94, 0.38);
  --text: #f4ece0;
  --text-soft: #c8b8a2;
  --text-faint: #97836d;
  --accent: #d7a05a;
  --accent-strong: #f0c48d;
  --accent-soft: rgba(215, 160, 90, 0.18);
  --good: #6ad19a;
  --bad: #f07d69;
  --warn: #efc565;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg-accent);
  padding: 28px 20px 40px;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 70%);
  opacity: 0.22;
}

button,
input,
select,
textarea {
  font: inherit;
}

.app-shell {
  max-width: 1440px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.hero {
  display: block;
}

.panel {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-panel {
  padding: 22px 24px;
  overflow: hidden;
}

.hero-panel::after,
.report-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.28), transparent 38%, rgba(199, 141, 61, 0.2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.hero-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.app-title {
  margin: 12px 0 8px;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.app-subtitle {
  max-width: 70ch;
  margin: 0;
  color: var(--text-soft);
  line-height: 1.5;
  font-size: 14px;
}

.toolbar {
  display: grid;
  gap: 14px;
  justify-items: end;
}

.toolbar-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.toolbar-label {
  font-size: 12px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.segmented {
  display: inline-flex;
  padding: 5px;
  border-radius: 999px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
}

.segmented button {
  border: 0;
  background: transparent;
  color: var(--text-soft);
  padding: 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: 180ms ease;
}

.segmented button.active {
  background: var(--surface-strong);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border), 0 8px 20px rgba(0, 0, 0, 0.08);
}

.lang-select {
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 16px;
  outline: none;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.metric-card {
  padding: 16px;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.metric-card.highlight {
  background: linear-gradient(135deg, rgba(199, 141, 61, 0.16), rgba(255, 255, 255, 0.05));
  border-color: var(--border-strong);
}

.metric-label {
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.metric-value {
  margin-top: 10px;
  font: 700 24px/1.05 var(--font-mono);
}

.metric-sub {
  margin-top: 6px;
  color: var(--text-soft);
  font-size: 12px;
}

.dashboard {
  display: grid;
  grid-template-columns: minmax(340px, 410px) minmax(0, 1fr);
  gap: 18px;
}

.inputs-panel,
.results-panel,
.versions-panel {
  padding: 20px;
}

.inputs-panel {
  position: sticky;
  top: 18px;
  align-self: start;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-title {
  margin: 0;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.panel-subtitle {
  margin: 4px 0 0;
  color: var(--text-soft);
  font-size: 12px;
  line-height: 1.5;
}

.section {
  margin-top: 18px;
}

.section:first-of-type {
  margin-top: 0;
}

.section-title {
  margin: 0 0 14px;
  color: var(--accent-strong);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.scenario-grid {
  display: grid;
  gap: 8px;
}

.scenario-card,
.snapshot-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-muted);
  padding: 12px 14px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.scenario-card {
  cursor: pointer;
}

.scenario-card:hover,
.snapshot-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.scenario-card.active,
.snapshot-card.active {
  background: var(--accent-soft);
  border-color: var(--border-strong);
}

.scenario-name {
  font-weight: 700;
}

.scenario-detail,
.snapshot-meta,
.snapshot-note {
  margin-top: 6px;
  color: var(--text-soft);
  font-size: 12px;
  line-height: 1.5;
}

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

.field {
  display: grid;
  gap: 8px;
}

.field.compact {
  grid-template-columns: minmax(0, 1fr) 116px;
  align-items: end;
}

.field-label {
  font-size: 13px;
  line-height: 1.5;
}

.field-label small {
  display: block;
  margin-top: 4px;
  color: var(--text-faint);
}

.number-wrap,
.textarea-wrap,
.text-wrap {
  position: relative;
}

.number-wrap span,
.text-wrap span {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-faint);
  font-size: 12px;
}

input[type="number"],
input[type="text"],
textarea,
select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  color: var(--text);
  padding: 10px 12px;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

input[type="number"] {
  padding-right: 44px;
  font-family: var(--font-mono);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 4px rgba(199, 141, 61, 0.12);
}

textarea {
  min-height: 72px;
  resize: vertical;
}

.slider-block {
  display: grid;
  gap: 10px;
}

.slider-top,
.slider-range {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.slider-top strong,
.slider-current {
  font-family: var(--font-mono);
}

input[type="range"] {
  width: 100%;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), rgba(199, 141, 61, 0.25));
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface-strong);
  border: 2px solid var(--accent);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.16);
}

.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--text);
  padding: 10px 14px;
  cursor: pointer;
  transition: 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.btn.primary {
  background: var(--accent);
  color: #231709;
  border-color: transparent;
  font-weight: 700;
}

.btn.ghost {
  background: transparent;
}

.btn.small {
  padding: 8px 12px;
  font-size: 13px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: wait;
  transform: none;
}

.results-grid {
  display: grid;
  gap: 16px;
}

.report-panel {
  padding: 18px 18px 14px;
}

.report-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(320px, 0.82fr);
  gap: 16px;
  align-items: start;
}

.analysis-rail {
  display: grid;
  gap: 12px;
}

.compact-card {
  padding: 16px;
}

.report-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 14px;
}

.report-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.meta-pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--text-soft);
  font-size: 11px;
}

.meta-pill strong {
  color: var(--text);
}

.report-table {
  width: 100%;
  border-collapse: collapse;
}

.report-table th,
.report-table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.report-table th {
  text-align: left;
  color: var(--text-faint);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.report-table th:last-child,
.report-table td:last-child {
  text-align: right;
  font-family: var(--font-mono);
}

.table-section td {
  color: var(--accent-strong);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  background: rgba(199, 141, 61, 0.08);
}

.table-total td {
  font-weight: 700;
}

.positive {
  color: var(--good);
}

.negative {
  color: var(--bad);
}

.neutral {
  color: var(--warn);
}

.info-card {
  padding: 16px;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.info-card h3,
.summary-card h3 {
  margin: 0 0 14px;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stack {
  display: grid;
  gap: 8px;
}

.metric-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.metric-line:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.metric-line span:last-child {
  font-family: var(--font-mono);
  font-weight: 600;
}

.progress-track {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: var(--surface-muted);
  overflow: hidden;
  margin: 8px 0 10px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--good));
  transition: width 240ms ease;
}

.progress-bar.danger {
  background: linear-gradient(90deg, var(--bad), var(--warn));
}

.summary-card {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(199, 141, 61, 0.12), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
}

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

.summary-item {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 12px;
}

.summary-item div:first-child {
  color: var(--text-faint);
  font-size: 12px;
}

.summary-item div:last-child {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
}

.versions-layout {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.versions-list-section {
  margin-top: 0;
}

.snapshot-list {
  display: grid;
  gap: 8px;
}

.snapshot-header,
.snapshot-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.empty-state {
  padding: 14px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-soft);
  line-height: 1.5;
}

.footnote {
  margin: 10px auto 0;
  max-width: 1440px;
  color: var(--text-faint);
  font-size: 12px;
  line-height: 1.7;
}

.toast {
  position: fixed;
  right: 20px;
  bottom: 22px;
  padding: 12px 16px;
  border-radius: 14px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px);
  transition: 180ms ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1180px) {
  .hero,
  .dashboard,
  .summary-grid,
  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard {
    grid-template-columns: 1fr;
  }

  .inputs-panel {
    position: static;
  }

  .report-layout,
  .versions-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  body {
    padding: 16px 14px 28px;
  }

  .hero,
  .hero-metrics,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .hero-top,
  .report-toolbar,
  .snapshot-actions,
  .snapshot-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .toolbar {
    justify-items: start;
  }

  .toolbar-group {
    justify-content: flex-start;
  }

  .field.compact {
    grid-template-columns: 1fr;
  }
}

@media print {
  body {
    padding: 0;
    background: #ffffff;
  }

  body::before,
  .hero,
  .inputs-panel,
  .versions-panel,
  .footnote,
  .toast {
    display: none !important;
  }

  .dashboard,
  .results-panel,
  .report-panel {
    display: block;
    box-shadow: none;
    border: 0;
    background: #ffffff;
  }
}