/* ============================================
   Quote Sleep Screen Generator — Styles
   ============================================ */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-tertiary: #252836;
  --bg-hover: #2f3344;
  --text-primary: #e8eaed;
  --text-secondary: #9aa0b0;
  --text-muted: #6b7185;
  --accent: #7c8cf8;
  --accent-hover: #9ba6fb;
  --accent-glow: rgba(124, 140, 248, 0.15);
  --border: #2f3344;
  --border-focus: #7c8cf8;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- Header --- */
.app-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.02em;
}

.logo-icon {
  font-size: 1.4rem;
}

.tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* --- Main Layout --- */
.app-main {
  flex: 1;
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  padding: 24px 32px;
  gap: 32px;
}

/* --- Controls Panel --- */
.controls-panel {
  width: 340px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* --- Quote Input --- */
.quote-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: 'Literata', Georgia, serif;
  font-size: 0.95rem;
  line-height: 1.6;
  padding: 14px 16px;
  resize: vertical;
  min-height: 120px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.quote-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.quote-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* --- Font Picker --- */
.font-picker {
  position: relative;
}

.font-picker-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  padding: 10px 14px;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.font-picker-trigger:hover {
  border-color: var(--border-focus);
}

.font-picker.open .font-picker-trigger {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.font-picker-arrow {
  transition: transform var(--transition);
  opacity: 0.5;
}

.font-picker.open .font-picker-arrow {
  transform: rotate(180deg);
}

.font-picker-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  z-index: 100;
  overflow: hidden;
}

.font-picker.open .font-picker-dropdown {
  display: block;
}

.font-picker-search {
  width: 100%;
  background: var(--bg-tertiary);
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 0.85rem;
  padding: 10px 14px;
  box-sizing: border-box;
}

.font-picker-search::placeholder {
  color: var(--text-muted);
}

.font-picker-search:focus {
  outline: none;
  background: var(--bg-hover);
}

.font-picker-categories {
  display: flex;
  gap: 2px;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}

.cat-btn {
  flex: 1;
  padding: 5px 4px;
  border: none;
  border-radius: 5px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.cat-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

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

.font-picker-list {
  max-height: 240px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--bg-hover) transparent;
}

.font-picker-list::-webkit-scrollbar {
  width: 6px;
}

.font-picker-list::-webkit-scrollbar-track {
  background: transparent;
}

.font-picker-list::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 3px;
}

.font-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  cursor: pointer;
  transition: background var(--transition);
  font-size: 0.88rem;
  color: var(--text-secondary);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.font-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.font-item.active {
  background: rgba(124, 140, 248, 0.12);
  color: var(--accent);
}

.font-item-star {
  font-size: 0.7rem;
  opacity: 0.6;
}

.font-item-category {
  margin-left: auto;
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.font-picker-status {
  padding: 12px 14px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-style: italic;
  display: none;
}

.font-picker-status.visible {
  display: block;
}

.font-group-label {
  padding: 8px 14px 4px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.font-group-label:first-child {
  border-top: none;
}

/* --- Alignment Buttons --- */
.alignment-group {
  display: flex;
  gap: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  padding: 4px;
  border: 1px solid var(--border);
}

.align-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.align-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.align-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(124, 140, 248, 0.3);
}

/* --- Bold / Italic Style Buttons --- */
.style-group {
  display: flex;
  gap: 8px;
}

.style-btn {
  width: 42px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition);
}

.style-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-color: var(--bg-hover);
}

.style-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(124, 140, 248, 0.3);
}

/* --- Footer Input --- */
.footer-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  padding: 10px 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.footer-input::placeholder {
  color: var(--text-muted);
  font-style: italic;
}

.footer-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.optional-label {
  font-weight: 400;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: none;
  letter-spacing: 0;
}

.font-size-value {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
  background: var(--accent-glow);
  padding: 2px 8px;
  border-radius: 4px;
}

.font-size-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  outline: none;
  border: 1px solid var(--border);
  cursor: pointer;
}

.font-size-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(124, 140, 248, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}

.font-size-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 2px 10px rgba(124, 140, 248, 0.6);
}

.font-size-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(124, 140, 248, 0.4);
}

/* --- Output Info --- */
.output-info {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.output-badge {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: 0.03em;
}

/* --- Download Button --- */
.download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  margin-top: 8px;
  background: linear-gradient(135deg, #7c8cf8, #6366f1);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
  letter-spacing: 0.01em;
}

.download-btn:hover {
  background: linear-gradient(135deg, #9ba6fb, #818cf8);
  box-shadow: 0 6px 25px rgba(99, 102, 241, 0.45);
  transform: translateY(-1px);
}

.download-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

/* --- Preview Panel --- */
.preview-panel {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 0;
}

.preview-frame {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.preview-device {
  background: #222;
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  display: inline-block;
  position: relative;
}

.preview-device::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.4;
}

#previewCanvas {
  display: block;
  border-radius: 4px;
  max-height: 70vh;
  width: auto;
  height: auto;
  max-width: 100%;
  object-fit: contain;
}

.preview-hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  font-style: italic;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .app-main {
    flex-direction: column;
    padding: 16px;
    gap: 24px;
  }

  .controls-panel {
    width: 100%;
  }

  .header-content {
    flex-direction: column;
    gap: 4px;
    padding: 0 16px;
  }

  .preview-device {
    padding: 12px;
  }

  #previewCanvas {
    max-height: 50vh;
  }
}

@media (max-width: 480px) {
  .app-header {
    padding: 12px 16px;
  }

  .app-main {
    padding: 12px;
  }

  .controls-panel {
    gap: 16px;
  }
}

/* --- Page Footer --- */
.app-footer {
  padding: 20px 24px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-content a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-content a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}