/* ═══════════════════════════════════════════════════════════════
   Chapterphile's Bookstagram Studio — Web Edition
   Dark theme matching the desktop app colour palette
   ═══════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-base:        #1a1a2e;
  --bg-surface:     #22223b;
  --bg-surface-alt: #2a2a40;
  --bg-input:       #2a2a40;
  --accent:         #6c63ff;
  --accent-hover:   #7f78ff;
  --accent-muted:   #4a4570;
  --secondary:      #3a3a52;
  --secondary-hover:#4a4a62;
  --danger:         #c0392b;
  --danger-hover:   #e74c3c;
  --text-primary:   #e8e8f0;
  --text-secondary: #9090a8;
  --text-muted:     #606078;
  --border:         #3a3a52;
  --divider:        #2e2e44;
  --success:        #27ae60;
  --warning:        #e67e22;
}

html, body {
  height: 100%;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Nunito', 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

/* ── Layout ─────────────────────────────────────────────────── */

.app-shell {
  display: grid;
  grid-template-columns: 1fr 420px;
  grid-template-rows: auto 1fr;
  height: 100vh;
  overflow: hidden;
}

.app-header {
  grid-column: 1 / -1;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.app-header h1 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.app-header p {
  font-size: 12px;
  color: var(--text-muted);
}

.left-panel {
  overflow-y: auto;
  padding: 16px;
  /* Atmospheric glow — visible behind the cards in the padding/gap areas */
  background:
    radial-gradient(ellipse 70% 45% at 10% 5%,  rgba(108,99,255,0.09) 0%, transparent 65%),
    radial-gradient(ellipse 55% 40% at 85% 90%, rgba(156,63,228,0.07) 0%, transparent 60%),
    var(--bg-base);
  scrollbar-width: thin;
  scrollbar-color: var(--accent-muted) transparent;
}

.left-panel::-webkit-scrollbar { width: 6px; }
.left-panel::-webkit-scrollbar-track { background: transparent; }
.left-panel::-webkit-scrollbar-thumb { background: var(--accent-muted); border-radius: 3px; }

.right-panel {
  background: var(--bg-surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Section Cards ───────────────────────────────────────────── */

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  /* No overflow:hidden here — font picker dropdowns must escape the card boundary */
}

.card-header {
  padding: 12px 16px 0;
  cursor: pointer;
  user-select: none;
}

.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Left cluster: icon + title */
.card-header-left {
  display: flex;
  align-items: center;
  gap: 7px;
}

/* Right cluster: completion dot + chevron */
.card-header-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-icon {
  font-size: 15px;
  line-height: 1;
  flex-shrink: 0;
  opacity: 0.85;
}

.card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Completion indicator dot */
.card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.card-dot.complete {
  background: var(--success);
  box-shadow: 0 0 7px rgba(39,174,96,0.55);
}

.card-subtitle {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}

.card-chevron {
  color: var(--text-muted);
  font-size: 11px;
  transition: transform 0.2s;
}

.card.collapsed .card-chevron { transform: rotate(-90deg); }

.card-divider {
  height: 1px;
  background: var(--divider);
  margin: 8px 16px 0;
}

.card-body {
  padding: 8px 16px 14px;
  overflow: hidden;
  /* Pure-CSS collapse — no JS scrollHeight needed.
     2000px is large enough for any card content; the transition
     feels fast on open (finishes early at natural height) but
     that's the accepted trade-off for dynamic-content safety. */
  max-height: 2000px;
  transition: max-height 0.3s ease, opacity 0.2s, padding 0.25s;
}

.card.collapsed .card-body {
  max-height: 0 !important;
  opacity: 0;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}

/* ── Form Elements ───────────────────────────────────────────── */

label.field-label {
  display: block;
  font-size: 11px;
  color: var(--text-secondary);
  margin-top: 8px;
  margin-bottom: 3px;
}

input[type="text"],
input[type="number"],
textarea,
select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
  padding: 7px 10px;
  outline: none;
  transition: border-color 0.15s;
  resize: vertical;
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108,99,255,0.13);
}

::placeholder { color: var(--text-muted); }

textarea { min-height: 72px; line-height: 1.5; }

/* Inline row of label + narrow input */
.inline-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}

.inline-row .field-label { margin: 0; white-space: nowrap; }
.inline-row input[type="text"] { width: auto; flex: 1; }

/* ── Character Counter ───────────────────────────────────────── */

.field-wrap { position: relative; }

.char-counter {
  position: absolute;
  right: 8px;
  bottom: 8px;
  font-size: 10px;
  color: var(--text-muted);
  pointer-events: none;
  background: var(--bg-input);
  padding: 0 3px;
  border-radius: 3px;
  line-height: 1.4;
}

.char-counter.warn  { color: var(--warning); }
.char-counter.error { color: var(--danger); }

.line-counter {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
  text-align: right;
}

.line-counter.error { color: var(--danger); }

/* ── Divider ─────────────────────────────────────────────────── */

.section-divider {
  height: 1px;
  background: var(--border);
  margin: 10px 0;
}

/* ── Buttons ─────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  padding: 7px 14px;
  height: 30px;
  transition: background 0.15s, opacity 0.15s;
  white-space: nowrap;
}

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

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

.btn-secondary {
  background: var(--secondary);
  color: var(--text-primary);
}
.btn-secondary:hover:not(:disabled) { background: var(--secondary-hover); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) { background: var(--secondary); }

.btn-danger-ghost {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
}
.btn-danger-ghost:hover:not(:disabled) { background: var(--danger); color: #fff; }

.btn-large {
  height: 40px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
  padding: 0 20px;
}

.btn-generate {
  background: linear-gradient(135deg, #6c63ff 0%, #9c3fe4 100%);
  color: #fff;
  height: 44px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(108,99,255,0.38);
  transition: box-shadow 0.2s, transform 0.1s, background 0.15s;
}
.btn-generate:hover:not(:disabled) {
  background: linear-gradient(135deg, #7f78ff 0%, #b04fff 100%);
  box-shadow: 0 6px 32px rgba(108,99,255,0.55);
  transform: translateY(-1px);
}
.btn-generate:active:not(:disabled) { transform: translateY(0); }

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

/* ── Font Selector ───────────────────────────────────────────── */

.font-selector-block {
  background: var(--bg-surface-alt);
  border-radius: 6px;
  padding: 6px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.font-selector-block .fs-label {
  font-size: 11px;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 100px;
}

.font-selector-block input[type="text"] {
  flex: 1;
  min-width: 130px;
  height: 28px;
  padding: 4px 8px;
  font-size: 12px;
}

.font-selector-block input[type="number"] {
  width: 60px;
  height: 28px;
  padding: 4px 6px;
  font-size: 12px;
}

.font-selector-block .btn {
  height: 28px;
  font-size: 11px;
  padding: 0 10px;
}

/* ── Star Rating ─────────────────────────────────────────────── */

.star-row {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 6px 0;
}

.star {
  font-size: 28px;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  transition: color 0.1s, transform 0.1s;
  line-height: 1;
}

.star.filled  { color: var(--accent); }
.star.half    { color: var(--accent); }
.star:hover   { transform: scale(1.15); }

.rating-entry-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.rating-entry-row input[type="number"] {
  width: 60px;
}

/* ── Colour Picker Row ───────────────────────────────────────── */

.color-picker-row {
  display: flex;
  gap: 16px;
  align-items: flex-end;
}

.color-picker-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.color-picker-col .field-label { margin: 0; }

input[type="color"] {
  width: 80px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2px 4px;
  background: var(--bg-input);
  cursor: pointer;
}

/* Preset swatches */
.preset-row {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.preset-btn {
  border: none;
  border-radius: 8px;
  padding: 5px 11px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 5px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
  transition: opacity 0.15s, transform 0.12s, box-shadow 0.15s;
}

.preset-btn:hover {
  opacity: 0.92;
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 5px 16px rgba(0,0,0,0.35);
}

/* Small fg-colour dot shown inside each preset swatch */
.preset-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0.65;
}

/* Border preset buttons */
.border-preset-row {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

/* ── Quick Actions ───────────────────────────────────────────── */

.actions-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 8px;
}

.recent-list {
  list-style: none;
  margin-top: 6px;
}

.recent-list li {
  padding: 5px 8px;
  border-radius: 5px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.1s;
}

.recent-list li:hover { background: var(--secondary); color: var(--text-primary); }

/* ── Preview Panel ───────────────────────────────────────────── */

.preview-actions {
  display: flex;
  gap: 6px;
  padding: 12px 16px 8px;
  flex-shrink: 0;
}

.preview-tabs {
  display: flex;
  gap: 4px;
  padding: 0 16px 8px;
  flex-shrink: 0;
}

.tab-btn {
  flex: 1;
  padding: 6px;
  border: none;
  border-radius: 6px;
  background: var(--secondary);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.tab-btn.active {
  background: var(--accent);
  color: #fff;
}

.preview-canvas-wrap {
  flex: 1;
  overflow: hidden;
  padding: 0 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preview-pane {
  display: none;
  flex: 1;
  background: var(--bg-surface-alt);
  border-radius: 8px;
  border: 1px solid var(--border);
  overflow: hidden;
  align-items: center;
  justify-content: center;
}

.preview-pane.active { display: flex; }

.preview-pane canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 4px;
}

.preview-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
  padding: 24px 20px;
  user-select: none;
}

.preview-empty-icon {
  font-size: 44px;
  line-height: 1;
  animation: preview-float 3.2s ease-in-out infinite;
}

.preview-empty-sub {
  font-size: 11px;
  opacity: 0.6;
  margin-top: 2px;
}

@keyframes preview-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-7px); }
}

.preview-footer {
  padding: 0 16px 14px;
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.preview-footer .btn { flex: 1; font-size: 11px; }

/* ── Generate Section ────────────────────────────────────────── */

.generate-section {
  padding: 10px 16px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.generate-section .btn-generate { width: 100%; }

/* ── Cover Thumbnail ─────────────────────────────────────────── */

.cover-thumb-wrap {
  margin-top: 8px;
  display: none;
}

.cover-thumb-wrap.visible { display: block; }

.cover-thumb {
  width: 70px;
  height: 95px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.cover-filename {
  font-size: 11px;
  color: var(--success);
  margin-top: 4px;
}

/* ── Modal ───────────────────────────────────────────────────── */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: min(680px, 95vw);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--divider);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  font-size: 15px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
}

.modal-close:hover { color: var(--text-primary); }

.modal-search-row {
  padding: 12px 20px;
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--divider);
}

.modal-search-row input { flex: 1; }

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-muted) transparent;
}

.cover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 12px;
}

.cover-card {
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.1s;
  background: var(--bg-input);
}

.cover-card:hover { border-color: var(--accent); transform: scale(1.03); }
.cover-card.selected { border-color: var(--success); }

.cover-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
}

.cover-card-info {
  padding: 6px 8px;
  font-size: 10px;
  color: var(--text-secondary);
  line-height: 1.3;
}

.modal-status {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 20px;
}

.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--divider);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ── List/Picker Modal (templates & drafts) ──────────────────── */

.picker-list {
  list-style: none;
}

.picker-list li {
  padding: 10px 12px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.1s;
  border: 1px solid transparent;
  margin-bottom: 4px;
}

.picker-list li:hover { background: var(--secondary); border-color: var(--border); }

.picker-list li .item-name {
  font-size: 13px;
  color: var(--text-primary);
}

.picker-list li .item-date {
  font-size: 10px;
  color: var(--text-muted);
}

/* ── Toast Notifications ─────────────────────────────────────── */

#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--text-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
  animation: toast-in 0.25s ease;
  max-width: 300px;
}

.toast.success { border-color: var(--success); }
.toast.error   { border-color: var(--danger); }
.toast.warning { border-color: var(--warning); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Spinner ─────────────────────────────────────────────────── */

.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Scrollbar for modal body ────────────────────────────────── */

.modal-body::-webkit-scrollbar { width: 5px; }
.modal-body::-webkit-scrollbar-thumb { background: var(--accent-muted); border-radius: 3px; }

/* ── Custom Font Picker (combobox style) ─────────────────────── */

.font-picker-wrap {
  position: relative;
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 130px;
}

/* The text input — type to filter, click to open, Escape to close */
.font-picker-wrap input.fp-input {
  flex: 1;
  min-width: 0;
  height: 28px;
  padding: 4px 28px 4px 8px; /* right padding leaves room for the ▾ button */
  font-size: 12px;
  border-radius: 6px !important;
  cursor: default;
}

/* ▾ button sits inside the input on the right — purely decorative trigger */
.fp-btn {
  position: absolute;
  right: 0;
  top: 0;
  height: 28px;
  width: 26px;
  background: transparent;
  border: none;
  border-left: 1px solid var(--border);
  border-radius: 0 6px 6px 0;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, background 0.15s;
  padding: 0;
  z-index: 1;
}

.fp-btn:hover { color: var(--text-primary); background: var(--secondary); }

/* Dropdown — pure list, no separate search box.
   The main input IS the search; this just shows the results.
   position: fixed so it escapes any overflow:hidden ancestor.  */
.fp-dropdown {
  display: none;
  flex-direction: column;
  position: fixed;           /* escapes card overflow clipping */
  width: 220px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  z-index: 9000;
  box-shadow: 0 6px 28px rgba(0,0,0,0.55);
  overflow: hidden;
}

.fp-dropdown.open { display: flex; }

.fp-list {
  list-style: none;
  max-height: 220px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-muted) transparent;
}

.fp-list::-webkit-scrollbar       { width: 4px; }
.fp-list::-webkit-scrollbar-thumb { background: var(--accent-muted); border-radius: 2px; }

.fp-item {
  padding: 6px 12px;
  font-size: 15px;        /* slightly larger so the font style is actually visible */
  line-height: 1.5;       /* consistent spacing even for tall script fonts */
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.08s;
}

.fp-item:hover            { background: var(--secondary); }
.fp-item.current          { color: var(--accent); font-weight: 600; }
.fp-item.current:hover    { background: var(--secondary); }
.fp-no-match              { color: var(--text-muted); font-style: italic; cursor: default; }
.fp-no-match:hover        { background: transparent; }

/* Preview canvas fade-in when image renders */
@keyframes preview-fade-in {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1);    }
}

/* ── Responsive tweak ────────────────────────────────────────── */

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
  }
  .right-panel {
    border-left: none;
    border-top: 1px solid var(--border);
    height: 520px;
  }
}