:root,
:root[data-theme="light"] {
  --paper: #f3ead9;
  --paper-2: #ece0c7;
  --paper-3: #e4d5b5;
  --ink: #241c14;
  --ink-soft: #4a3d2c;
  --ink-faint: #7a6a52;
  --rule: #a1875c;
  --rule-soft: #c7b58e;
  --accent: #7a1f1f;
  --accent-soft: #9c3b3b;
  --accent-bg: rgba(122, 31, 31, 0.08);
  --on-accent: #f3ead9;
  --gold: #8a6a24;
  --shadow: 0 30px 60px -28px rgba(36, 28, 20, 0.45);
  --tex-1: rgba(122, 31, 31, 0.05);
  --tex-2: rgba(138, 106, 36, 0.06);
  --tex-3: rgba(74, 61, 44, 0.025);
  --serif: Georgia, "Cambria", "Times New Roman", Times, serif;
}

:root[data-theme="dark"] {
  --paper: #18130e;
  --paper-2: #221a12;
  --paper-3: #0f0b08;
  --ink: #efe2c7;
  --ink-soft: #cab999;
  --ink-faint: #93805f;
  --rule: #6e5a3a;
  --rule-soft: #453623;
  --accent: #c9564b;
  --accent-soft: #e07a68;
  --accent-bg: rgba(201, 86, 75, 0.16);
  --on-accent: #f7ede0;
  --gold: #d4ac48;
  --shadow: 0 30px 60px -28px rgba(0, 0, 0, 0.8);
  --tex-1: rgba(201, 86, 75, 0.07);
  --tex-2: rgba(212, 172, 72, 0.05);
  --tex-3: rgba(255, 255, 255, 0.02);
}

* {
  box-sizing: border-box;
}

button {
  appearance: none;
  -webkit-appearance: none;
  font-family: inherit;
}

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

html {
  /* Explicit, so the UA doesn't propagate body's background to the canvas
     instead — that propagation path was caching the pre-toggle theme color. */
  background: var(--paper-3);
  transition: background-color 0.25s ease;
}

body {
  font: 16px/1.6 var(--serif);
  color: var(--ink-soft);
  background: var(--paper-3);
  background-image:
    radial-gradient(circle at 10% 10%, var(--tex-1), transparent 40%),
    radial-gradient(circle at 90% 85%, var(--tex-2), transparent 45%),
    repeating-linear-gradient(0deg, var(--tex-3) 0px, var(--tex-3) 1px, transparent 1px, transparent 3px);
  transition: background-color 0.25s ease, color 0.25s ease;
}

.deskpad {
  min-height: 100vh;
  padding: 40px 20px 60px;
  display: flex;
  justify-content: center;
}

.volume {
  width: 100%;
  max-width: 980px;
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  box-shadow: var(--shadow);
  padding: 44px 52px 36px;
  position: relative;
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

.volume::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid var(--rule-soft);
  pointer-events: none;
}

/* Theme toggle */
.theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: inherit;
  font-size: 11.5px;
  font-variant: small-caps;
  letter-spacing: 0.5px;
  color: var(--ink-faint);
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  padding: 6px 11px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background-color 0.25s ease;
}

.theme-toggle:hover {
  border-color: var(--accent-soft);
  color: var(--ink);
}

.theme-toggle-icon {
  font-size: 13px;
  color: var(--gold);
}

/* Masthead */
.masthead {
  text-align: center;
  padding-bottom: 22px;
}

.masthead-eyebrow {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-style: italic;
}

.masthead-title {
  margin: 0 0 10px;
  font-size: 44px;
  font-weight: 400;
  letter-spacing: 0.5px;
  color: var(--ink);
  font-variant: small-caps;
}

.masthead-sub {
  margin: 0 auto;
  max-width: 560px;
  font-size: 14.5px;
  font-style: italic;
  color: var(--ink-faint);
}

.masthead-rule {
  height: 5px;
  margin: 22px auto 0;
  max-width: 340px;
  border-top: 3px double var(--rule);
}

.masthead-meta {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--ink-faint);
  font-style: italic;
}

.masthead-meta select {
  font: inherit;
  font-style: normal;
  font-size: 12.5px;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  padding: 4px 8px;
  max-width: 230px;
}

/* Page headings */
.page-heading {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 400;
  color: var(--ink);
  border-bottom: 1px solid var(--rule-soft);
  padding-bottom: 8px;
  font-variant: small-caps;
  letter-spacing: 0.4px;
}

.drop-cap {
  font-size: 26px;
  color: var(--accent);
  font-family: var(--serif);
}

/* Spread layout */
.spread {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 40px;
  padding-top: 28px;
  position: relative;
}

.spread::after {
  content: "";
  position: absolute;
  top: 28px;
  bottom: 0;
  left: calc(45.4% - 1px);
  width: 1px;
  background: linear-gradient(var(--rule-soft), transparent 90%);
}

.page {
  padding-top: 4px;
}

/* Entry / textarea */
#input-text {
  width: 100%;
  min-height: 190px;
  resize: vertical;
  font: inherit;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  padding: 14px 16px;
}

#input-text:focus {
  outline: none;
  border-color: var(--accent-soft);
  box-shadow: 0 0 0 3px var(--accent-bg);
}

.entry-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
  font-size: 12px;
  color: var(--ink-faint);
}

.entry-note {
  font-style: italic;
}

.field-row {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-soft);
}

.field-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.field-row input[type="number"] {
  width: 92px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  padding: 5px 8px;
}

.field-row em {
  color: var(--ink-faint);
}

.error-note {
  margin-top: 10px;
  font-size: 13px;
  color: var(--accent);
  font-style: italic;
}

/* Tones grid */
.tones-grid {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-height: 480px;
  overflow-y: auto;
  padding-right: 6px;
}

.loading-note {
  font-style: italic;
  color: var(--ink-faint);
  font-size: 14px;
}

.tone-category-title {
  margin: 0 0 8px;
  font-size: 12.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  font-style: italic;
  border-bottom: 1px solid var(--rule-soft);
  padding-bottom: 4px;
}

.tone-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 8px;
}

.tone-card {
  text-align: left;
  font: inherit;
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  padding: 9px 11px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

.tone-card:hover {
  border-color: var(--accent-soft);
  transform: translateY(-1px);
}

.tone-card.selected {
  background: var(--accent-bg);
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.tone-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.tone-meta {
  font-size: 11px;
  color: var(--ink-faint);
  display: flex;
  gap: 6px;
}

.tone-meta em {
  font-style: italic;
}

.tone-meta i {
  font-style: italic;
}

.tone-blurb {
  font-size: 11.5px;
  color: var(--ink-soft);
  line-height: 1.4;
}

/* Stamp / submit button */
.stamp-row {
  text-align: center;
  padding: 30px 0 6px;
}

.stamp-button {
  font: inherit;
  font-size: 15px;
  font-variant: small-caps;
  letter-spacing: 1px;
  color: var(--on-accent);
  background: var(--accent);
  border: 1px solid var(--ink);
  padding: 13px 34px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  transition: opacity 0.2s, transform 0.15s;
}

.stamp-ring {
  color: var(--gold);
  font-size: 13px;
}

.stamp-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.stamp-button:not(:disabled):hover {
  transform: translateY(-1px);
}

.status-line {
  margin: 12px 0 0;
  font-size: 13px;
  font-style: italic;
  color: var(--ink-faint);
}

.status-line.is-error {
  color: var(--accent);
}

/* Output */
.page-output {
  padding-top: 26px;
  border-top: 1px solid var(--rule-soft);
}

.output-box {
  min-height: 140px;
  background: var(--paper-2);
  border: 1px solid var(--rule-soft);
  padding: 16px 18px;
}

.output-placeholder {
  margin: 0;
  color: var(--ink-faint);
  font-style: italic;
  font-size: 14px;
}

.output-text {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.output-text .cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  margin-left: 2px;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s step-start infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.output-actions {
  display: flex;
  gap: 8px;
}

.ledger-button {
  font: inherit;
  font-size: 12px;
  font-variant: small-caps;
  letter-spacing: 0.5px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 7px 14px;
  cursor: pointer;
  transition: border-color 0.15s, opacity 0.15s;
}

.ledger-button:hover:not(:disabled) {
  border-color: var(--accent);
}

.ledger-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Colophon */
.colophon {
  margin-top: 30px;
  padding-top: 16px;
  border-top: 1px solid var(--rule-soft);
  text-align: center;
}

.colophon p {
  margin: 0;
  font-size: 11.5px;
  font-style: italic;
  color: var(--ink-faint);
}

/* Responsive */
@media (max-width: 800px) {
  .volume {
    padding: 30px 22px 26px;
  }

  .masthead-title {
    font-size: 32px;
  }

  .spread {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .spread::after {
    display: none;
  }

  .tones-grid {
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 480px) {
  .deskpad {
    padding: 20px 10px 40px;
  }

  .volume {
    padding: 56px 16px 20px;
  }

  .theme-toggle {
    top: 14px;
    right: 50%;
    transform: translateX(50%);
  }

  .entry-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .output-actions {
    width: 100%;
  }

  .ledger-button {
    flex: 1;
  }
}