/*
 * Волшебная Книга — стили книжного приложения
 */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&display=swap');

*, *::before, *::after { box-sizing: border-box; }

:root {
  --parchment:     #f5ecd7;
  --parchment-dark:#e8d9b5;
  --ink:           #2c1a0e;
  --ink-light:     #5a3e28;
  --gold:          #c9922a;
  --gold-light:    #e8b84b;
  --leather:       #7a3f1e;
  --shadow:        rgba(0,0,0,0.18);
  --page-w:        700px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Playfair Display', 'Georgia', serif;
  background: #1a0d05;
  background-image:
    radial-gradient(ellipse at 20% 50%, #2a1208 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, #2a1208 0%, transparent 60%);
  color: var(--ink);
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

/* ── Navigation ─────────────────────────────────────────── */
.book-nav {
  background: var(--leather);
  background-image: linear-gradient(180deg, #8a4f2e 0%, #5a2e10 100%);
  border-bottom: 3px solid var(--gold);
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: var(--page-w);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-brand {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold-light);
  text-decoration: none;
  letter-spacing: 0.03em;
  text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.nav-links {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.nav-link {
  color: #e8d4b0;
  text-decoration: none;
  font-size: 0.95rem;
  padding: 4px 10px;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}

.nav-link:hover { background: rgba(255,255,255,0.12); color: var(--gold-light); }

.nav-link--action {
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
  padding: 5px 14px;
}

.nav-link--action:hover { background: var(--gold-light); color: var(--ink); }

/* ── Flash messages ──────────────────────────────────────── */
.flash {
  max-width: var(--page-w);
  margin: 16px auto 0;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-style: italic;
}

.flash--notice { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.flash--alert  { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* ── Main layout ─────────────────────────────────────────── */
.book-main {
  max-width: var(--page-w);
  margin: 32px auto;
  padding: 0 16px 60px;
}

/* ── Book page card ──────────────────────────────────────── */
.page-card {
  background: var(--parchment);
  background-image:
    linear-gradient(90deg, rgba(0,0,0,0.04) 0px, transparent 2px),
    linear-gradient(rgba(0,0,0,0.025) 0px, transparent 1px);
  background-size: 20px 20px, 100% 28px;
  border-radius: 4px 12px 12px 4px;
  box-shadow:
    -6px 0 0 var(--parchment-dark),
    -8px 0 0 #d4c5a0,
    -10px 0 0 #c8b890,
    4px 4px 20px var(--shadow),
    inset 0 0 60px rgba(0,0,0,0.03);
  padding: 48px 56px;
  position: relative;
  border-left: 3px solid #c8b37a;
}

.page-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.05) 0%, transparent 8%);
  border-radius: inherit;
  pointer-events: none;
}

/* ── Typography ──────────────────────────────────────────── */
.book-title {
  font-size: 2.4rem;
  color: var(--ink);
  text-align: center;
  margin: 0 0 8px;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.book-subtitle {
  text-align: center;
  color: var(--ink-light);
  font-style: italic;
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.chapter-title {
  font-size: 1.7rem;
  color: var(--ink);
  margin: 0 0 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--parchment-dark);
  font-style: italic;
}

.section-divider {
  text-align: center;
  color: var(--gold);
  font-size: 1.4rem;
  letter-spacing: 0.4em;
  margin: 32px 0;
  user-select: none;
}

.prose {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--ink);
  text-align: justify;
  hyphens: auto;
  margin: 0 0 24px;
}

/* ── Cover page ──────────────────────────────────────────── */
.book-cover {
  text-align: center;
  padding: 40px 0;
}

.cover-ornament {
  font-size: 3rem;
  display: block;
  margin-bottom: 16px;
  filter: sepia(0.3);
}

.cover-stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 32px 0;
  flex-wrap: wrap;
}

.stat-block {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-light);
  font-style: italic;
  margin-top: 4px;
}

/* ── Page list ───────────────────────────────────────────── */
.page-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-list-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: rgba(255,255,255,0.4);
  border: 1px solid var(--parchment-dark);
  border-radius: 6px;
  padding: 14px 18px;
  transition: background 0.2s;
  text-decoration: none;
  color: inherit;
}

.page-list-item:hover { background: rgba(255,255,255,0.65); }

.page-number {
  font-size: 0.8rem;
  color: var(--gold);
  font-weight: 700;
  min-width: 32px;
  padding-top: 2px;
  font-style: normal;
}

.page-excerpt {
  font-size: 0.9rem;
  color: var(--ink-light);
  font-style: italic;
  margin: 4px 0 0;
  line-height: 1.4;
}

/* ── Character grid ──────────────────────────────────────── */
.character-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.character-card {
  background: rgba(255,255,255,0.45);
  border: 1px solid var(--parchment-dark);
  border-radius: 8px;
  overflow: hidden;
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}

.character-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.character-canvas-preview {
  width: 100%;
  height: 150px;
  display: block;
  background: #f0e4c8;
}

.character-name {
  padding: 10px 12px 12px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink);
}

/* ── Konva canvas container ──────────────────────────────── */
.canvas-wrap {
  background: #f0e4c8;
  border: 2px solid var(--parchment-dark);
  border-radius: 8px;
  overflow: hidden;
  display: inline-block;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.1);
}

.canvas-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

/* ── Forms ───────────────────────────────────────────────── */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink-light);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-style: normal;
  font-family: system-ui, sans-serif;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255,255,255,0.7);
  border: 1px solid #c8b37a;
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--ink);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 146, 42, 0.15);
}

.form-textarea {
  min-height: 200px;
  resize: vertical;
  line-height: 1.7;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  font-weight: 500;
}

.btn-primary {
  background: var(--leather);
  color: var(--gold-light);
  border-color: var(--gold);
}

.btn-primary:hover {
  background: #8a4020;
  color: #fff;
}

.btn-secondary {
  background: rgba(255,255,255,0.5);
  color: var(--ink);
  border-color: #c8b37a;
}

.btn-secondary:hover { background: rgba(255,255,255,0.8); }

.btn-danger {
  background: #8b1a1a;
  color: #fde8e8;
  border-color: #a02020;
}

.btn-danger:hover { background: #a02020; }

.btn-sm { padding: 5px 12px; font-size: 0.82rem; }

.btn-tool {
  background: rgba(255,255,255,0.6);
  border: 1px solid #c8b37a;
  color: var(--ink);
  padding: 6px 12px;
  font-size: 0.85rem;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-tool:hover { background: rgba(255,255,255,0.9); }
.btn-tool.active { background: var(--gold); color: var(--ink); font-weight: 700; }

/* ── Page reader (show view) ─────────────────────────────── */
.page-reader {
  min-height: 400px;
}

.page-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--parchment-dark);
}

.page-content {
  white-space: pre-wrap;
  font-size: 1.08rem;
  line-height: 1.9;
  color: var(--ink);
  font-family: 'Playfair Display', 'Georgia', serif;
}

/* ── Errors ──────────────────────────────────────────────── */
.error-messages {
  background: #fef0f0;
  border: 1px solid #f5c6cb;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 20px;
  color: #8b1a1a;
  font-size: 0.9rem;
  font-style: italic;
}

.error-messages ul { margin: 6px 0 0 16px; padding: 0; }

/* ── Action row ──────────────────────────────────────────── */
.action-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* ── Character avatar chip ───────────────────────────────── */
.character-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-style: italic;
  border: 1px solid currentColor;
  opacity: 0.85;
}

/* ── Footer ──────────────────────────────────────────────── */
.book-footer {
  text-align: center;
  color: #8a6a3a;
  font-size: 0.82rem;
  font-style: italic;
  padding: 20px;
  border-top: 1px solid #3a1a08;
}

/* ── Empty state ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 20px;
  color: var(--ink-light);
  font-style: italic;
}

.empty-state-icon { font-size: 3rem; display: block; margin-bottom: 16px; }

@media (max-width: 600px) {
  .page-card { padding: 28px 24px; }
  .book-title { font-size: 1.8rem; }
  .nav-inner { flex-direction: column; gap: 10px; }
  .nav-links { justify-content: center; }
}