/* =========================================================
   Сказано — theme
   Tokens, icons, shared button / card variants.
   Load before styles.css. Do not invent one-off button looks
   in feature CSS — reuse these classes.
   ========================================================= */

:root {
  /* Surface / background — warm paper */
  --bg: #f6f1e8;
  --surface: #fffdf8;
  --surface-2: #f1ebe0;
  --hover: #ece5d6;
  --hover-strong: #e0d8c6;

  /* Text — warm ink */
  --ink: #2a2622;
  --muted: #6b6358;
  --faint: #9a9088;

  /* Lines */
  --border: #e3dccd;
  --border-strong: #d4cab5;

  /* Accent — deep forest green (literary) */
  --accent: #2f5d50;
  --accent-hover: #244a40;
  --accent-active: #1c3a31;
  --accent-soft: #e6efeb;
  --accent-ink: #1f4538;

  /* Status — info uses sage (no browser-blue) */
  --success: #15803d;
  --success-bg: #dcfce7;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --danger: #b91c1c;
  --danger-bg: #fee2e2;
  --info: #3d6b5c;
  --info-bg: #e6efeb;
  --save-dot-ok: #22c55e;
  --save-dot-pending: #eab308;
  --save-dot-error: #f87171;
  --recording: #c0392b;

  /* Dictation mic */
  --mic-gold: #d4af37;
  --mic-gold-hover: #e8c547;

  /* Typography */
  --font-sans: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Lora", Georgia, "Times New Roman", "PT Serif", serif;
  --font-editor: "Lora", Georgia, "Times New Roman", serif;
  --fs-xs: 12px;
  --fs-sm: 13px;
  --fs-base: 14px;
  --fs-md: 16px;
  --fs-lg: 18px;
  --fs-xl: 20px;
  --fs-2xl: 24px;
  --fs-3xl: 30px;
  --fs-editor: 18px;
  --lh-editor: 1.75;

  /* Spacing scale (4-based) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;

  /* Radius */
  --r-sm: 6px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;
  --r-pill: 999px;

  /* Shadow — soft, paper-like */
  --sh-xs: 0 1px 2px rgba(60, 50, 35, 0.05);
  --sh-sm: 0 1px 3px rgba(60, 50, 35, 0.08), 0 1px 2px rgba(60, 50, 35, 0.05);
  --sh-md: 0 6px 18px rgba(60, 50, 35, 0.10);
  --sh-lg: 0 14px 36px rgba(60, 50, 35, 0.16);
  --sh-book: 0 10px 24px rgba(60, 50, 35, 0.18), 0 2px 6px rgba(60, 50, 35, 0.10);

  /* Layout */
  --sidebar-w: 260px;
  --structure-w: 380px;
  --ai-w: 360px;
  --editor-max: 760px;
  --touch: 44px;

  /* Motion */
  --t-fast: 120ms;
  --t-base: 180ms;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);

  /* Kill default browser blue (focus / form controls / tap) */
  accent-color: var(--accent);
  -webkit-tap-highlight-color: color-mix(in srgb, var(--accent) 18%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Icons ---------- */
.ic {
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
  color: currentColor;
}
.ic svg,
svg.ic {
  display: block;
}
.ic-stroke,
.ic-stroke path,
.ic-stroke polyline,
.ic-stroke line,
.ic-stroke circle,
.ic-stroke rect {
  stroke: currentColor;
  fill: none;
}

/* ---------- Buttons ---------- */
.btn {
  font: inherit;
  font-size: var(--fs-base);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  padding: var(--sp-2) var(--sp-4);
  min-height: var(--touch);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  text-decoration: none;
  line-height: 1.2;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease);
}
.btn:hover { text-decoration: none; }
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn .ic { flex-shrink: 0; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--border-strong);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--hover);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) { background: var(--hover); }

.btn-danger {
  background: var(--surface);
  color: var(--danger);
  border-color: #f3c5c5;
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger-bg);
  border-color: #f0a0a0;
}

.btn-block { width: 100%; }
.btn-sm {
  min-height: 36px;
  padding: var(--sp-1) var(--sp-3);
  font-size: var(--fs-sm);
}
.btn-icon {
  width: var(--touch);
  padding: 0;
  color: var(--muted);
}
.btn-icon:hover:not(:disabled) { color: var(--ink); background: var(--hover); }
.file-btn { cursor: pointer; margin: 0; }

.btn-link {
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 500;
  background: transparent;
  border: none;
  color: var(--muted);
  padding: var(--sp-1) var(--sp-2);
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  cursor: pointer;
  border-radius: var(--r-sm);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease);
}
.btn-link:hover:not(:disabled) {
  color: var(--accent);
  background: var(--accent-soft);
}
.btn-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.btn-link:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- Choice / path cards (create book, welcome fork) ---------- */
.path-card-stack,
.create-paths,
.welcome-choice-actions {
  display: grid;
  gap: var(--sp-3);
  width: min(100%, 22rem);
  margin-inline: auto;
}
.create-paths {
  width: 100%;
  margin-inline: 0;
  margin-bottom: var(--sp-4);
}
.welcome-choice-actions {
  margin-top: var(--sp-2);
}

.path-card {
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  font: inherit;
  min-height: var(--touch);
  transition: border-color var(--t-fast) var(--ease),
    background var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.path-card:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: var(--sh-xs);
}
.path-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.path-card:disabled { cursor: wait; opacity: .65; }
.path-card strong {
  color: var(--ink);
  font-size: var(--fs-md);
  font-weight: 600;
}
.path-card span {
  color: var(--muted);
  font-size: var(--fs-sm);
  line-height: 1.4;
}
.path-card--primary {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: var(--sh-xs);
}
.path-card--primary strong { color: var(--accent-ink); }
.path-card--secondary {
  background: var(--surface);
}

/* ---------- Surface blocks ---------- */
.form-card,
.surface-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  box-shadow: var(--sh-xs);
}

/* Soft illustration tile (empty states) */
.state-ill {
  width: 72px;
  height: 72px;
  border-radius: var(--r-lg);
  background: var(--accent-soft);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-1);
}
.state-ill.error { background: var(--danger-bg); color: var(--danger); }

/* ---------- Custom select (replaces native OS blue highlight) ---------- */
.ui-select {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  min-width: 9.5rem;
  width: min(100%, 12rem);
}
.ui-select-trigger {
  font: inherit;
  font-size: var(--fs-base);
  font-weight: 400;
  width: 100%;
  min-height: var(--touch);
  padding: var(--sp-2) var(--sp-3);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-2);
  text-align: left;
  transition: border-color var(--t-fast) var(--ease),
    box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.ui-select-trigger:hover {
  background: var(--hover);
  border-color: var(--border-strong);
}
.ui-select.is-open .ui-select-trigger,
.ui-select-trigger:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.ui-select-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ui-select-chevron {
  flex-shrink: 0;
  color: var(--muted);
  transition: transform var(--t-fast) var(--ease);
}
.ui-select.is-open .ui-select-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}
.ui-select-menu {
  position: absolute;
  z-index: 50;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  margin: 0;
  padding: var(--sp-1);
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  box-shadow: var(--sh-md);
  max-height: 16rem;
  overflow: auto;
}
.ui-select-menu[hidden] { display: none; }
.ui-select-menu [role="option"] {
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-sm);
  cursor: pointer;
  color: var(--ink);
  font-size: var(--fs-base);
  line-height: 1.35;
  min-height: 40px;
  display: flex;
  align-items: center;
}
.ui-select-menu [role="option"]:hover,
.ui-select-menu [role="option"].is-active {
  background: var(--hover);
  color: var(--ink);
}
.ui-select-menu [role="option"][aria-selected="true"] {
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 500;
}
.ui-select-menu [role="option"][aria-selected="true"]:hover,
.ui-select-menu [role="option"][aria-selected="true"].is-active {
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.editor-toolbar .ui-select {
  width: 100%;
  max-width: none;
}