/* ===================================================================
   PixelPress — Design System & Styles
   =================================================================== */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ===================================================================
   CSS CUSTOM PROPERTIES (THEMING)
   =================================================================== */
:root {
  /* Shared */
  --primary: #6C63FF;
  --primary-hover: #7d75ff;
  --primary-glow: rgba(108, 99, 255, 0.35);
  --secondary: #FF6584;
  --success: #00D4AA;
  --warning: #FFB347;
  --error: #FF4757;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: 0.3s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
}

/* Dark (default) */
[data-theme="dark"] {
  --bg: #0F0F1A;
  --bg-surface: #1A1A2E;
  --bg-card: #16213E;
  --bg-card-hover: #1c2a4e;
  --bg-input: #0d1b36;
  --text: #FFFFFF;
  --text-secondary: #A0A0B0;
  --text-muted: #606078;
  --border: rgba(108, 99, 255, 0.15);
  --border-strong: rgba(108, 99, 255, 0.35);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px var(--primary-glow);
  --overlay: rgba(15, 15, 26, 0.85);
}

/* Light */
[data-theme="light"] {
  --bg: #F5F5FA;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F0EEFF;
  --bg-input: #f0f0f8;
  --text: #1A1A2E;
  --text-secondary: #555568;
  --text-muted: #999;
  --border: rgba(108, 99, 255, 0.12);
  --border-strong: rgba(108, 99, 255, 0.3);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 20px rgba(108, 99, 255, 0.12);
  --overlay: rgba(255, 255, 255, 0.85);
}

/* ===================================================================
   RESET & BASE
   =================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

button {
  cursor: pointer;
  font-family: var(--font);
  border: none;
  background: none;
  color: inherit;
}

input, select {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  transition: border var(--transition), box-shadow var(--transition);
}
input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

::selection { background: var(--primary); color: #fff; }

/* ===================================================================
   LAYOUT
   =================================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===================================================================
   HEADER
   =================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--overlay);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
}
.logo svg { flex-shrink: 0; }
.logo-gradient {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.icon-btn {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  color: var(--text-secondary);
}
.icon-btn:hover {
  background: var(--bg-card);
  color: var(--text);
}

/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero {
  text-align: center;
  padding: 60px 0 30px;
}
.hero h1 {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 8px;
}
.hero .formats-badge {
  display: inline-flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 10px;
}
.format-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

/* ===================================================================
   UPLOAD ZONE
   =================================================================== */
.upload-zone {
  position: relative;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 60px 30px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-surface);
  margin: 24px auto 0;
  max-width: 700px;
  overflow: hidden;
}
.upload-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(108,99,255,0.04), rgba(255,101,132,0.04));
  opacity: 0;
  transition: opacity var(--transition);
}
.upload-zone:hover,
.upload-zone.drag-active {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}
.upload-zone:hover::before,
.upload-zone.drag-active::before { opacity: 1; }

.upload-zone.drag-active {
  border-color: var(--secondary);
  background: rgba(108, 99, 255, 0.06);
}

.upload-icon {
  width: 64px; height: 64px;
  margin: 0 auto 18px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition);
}
.upload-zone:hover .upload-icon { transform: scale(1.1); }

.upload-zone h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 6px;
  position: relative;
}
.upload-zone p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  position: relative;
}
.upload-zone .browse-link {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
}

.file-count-badge {
  display: none;
  position: absolute;
  top: 16px; right: 16px;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}
.file-count-badge.visible { display: block; }

/* ===================================================================
   PREVIEW THUMBNAILS (after upload)
   =================================================================== */
.upload-previews {
  display: none;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.upload-previews.visible { display: flex; }

.upload-thumb {
  position: relative;
  width: 110px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  transition: transform var(--transition);
}
.upload-thumb:hover { transform: translateY(-3px); }
.upload-thumb img {
  width: 100%; height: 80px;
  object-fit: cover;
}
.upload-thumb-info {
  padding: 6px;
  font-size: 0.65rem;
  line-height: 1.3;
  color: var(--text-secondary);
}
.upload-thumb-info .name {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
  color: var(--text);
}
.upload-thumb-remove {
  position: absolute;
  top: 4px; right: 4px;
  width: 22px; height: 22px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.upload-thumb:hover .upload-thumb-remove { opacity: 1; }

/* ===================================================================
   PRESET BAR
   =================================================================== */
.presets-section {
  margin: 36px auto;
  max-width: var(--max-width);
}
.presets-section h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 14px;
  padding: 0 20px;
  color: var(--text-secondary);
}
.preset-scroll {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding: 4px 20px 12px;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.preset-scroll::-webkit-scrollbar { display: none; }

.preset-card {
  flex: 0 0 auto;
  min-width: 160px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}
.preset-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}
.preset-card.active {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow), var(--shadow-glow);
}
.preset-card .preset-name {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
  white-space: nowrap;
}
.preset-card .preset-desc {
  font-size: 0.72rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* ===================================================================
   SETTINGS PANEL
   =================================================================== */
.settings-section {
  margin: 0 auto 36px;
  max-width: 700px;
  padding: 0 20px;
}
.settings-toggle-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 10px 0;
  width: 100%;
  text-align: left;
  transition: color var(--transition);
}
.settings-toggle-btn:hover { color: var(--text); }
.settings-toggle-btn svg {
  transition: transform var(--transition);
}
.settings-toggle-btn[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.settings-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: grid;
  gap: 20px;
  transition: all var(--transition);
  overflow: hidden;
}
.settings-panel.collapsed {
  max-height: 0;
  padding: 0 24px;
  border: none;
  opacity: 0;
  pointer-events: none;
}

.setting-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Quality Slider */
.quality-control {
  display: flex;
  align-items: center;
  gap: 14px;
}
.quality-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: linear-gradient(to right, var(--primary) 0%, var(--primary) var(--val, 80%), var(--bg-card) var(--val, 80%), var(--bg-card) 100%);
  outline: none;
  border: none;
  padding: 0;
}
.quality-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  cursor: pointer;
  box-shadow: 0 0 8px var(--primary-glow);
  transition: transform 0.15s;
}
.quality-slider::-webkit-slider-thumb:hover { transform: scale(1.2); }
.quality-slider::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  cursor: pointer;
}
.quality-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  min-width: 48px;
  text-align: right;
}

/* Format Select */
.format-select {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

/* Dimension inputs */
.dimension-inputs {
  display: flex;
  gap: 10px;
  align-items: center;
}
.dimension-inputs input {
  width: 100%;
  max-width: 120px;
  text-align: center;
}
.dimension-inputs span {
  color: var(--text-muted);
  font-weight: 600;
}

/* Metadata toggle */
.toggle-group {
  display: flex;
  align-items: center;
  gap: 12px;
}
.toggle-switch {
  position: relative;
  width: 48px; height: 26px;
}
.toggle-switch input {
  opacity: 0; width: 0; height: 0;
  position: absolute;
}
.toggle-track {
  position: absolute; inset: 0;
  background: var(--bg-card);
  border-radius: 13px;
  cursor: pointer;
  transition: background var(--transition);
  border: 1px solid var(--border);
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition: all var(--transition);
}
.toggle-switch input:checked + .toggle-track {
  background: var(--primary);
  border-color: var(--primary);
}
.toggle-switch input:checked + .toggle-track::after {
  transform: translateX(22px);
  background: #fff;
}
.toggle-label { font-size: 0.88rem; color: var(--text); }

/* Privacy banner for metadata */
.privacy-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(108, 99, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: 8px;
}
.privacy-note svg { flex-shrink: 0; margin-top: 1px; }

/* ===================================================================
   ACTION BUTTONS
   =================================================================== */
.actions-bar {
  display: none;
  justify-content: center;
  gap: 12px;
  margin: 0 auto 36px;
  padding: 0 20px;
  max-width: 700px;
}
.actions-bar.visible { display: flex; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #8B83FF);
  color: #fff;
  box-shadow: 0 4px 16px var(--primary-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--primary-glow);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-strong);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #00e6b8);
  color: #0F0F1A;
}
.btn-success:hover { transform: translateY(-2px); }

/* ===================================================================
   BATCH PROGRESS
   =================================================================== */
.batch-progress {
  display: none;
  max-width: 700px;
  margin: 0 auto 30px;
  padding: 0 20px;
}
.batch-progress.visible { display: block; }
.batch-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-card);
  border-radius: 3px;
  overflow: hidden;
}
.batch-progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px;
  transition: width 0.3s ease;
}
.batch-progress-text {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 6px;
  text-align: center;
}

/* ===================================================================
   RESULTS SECTION
   =================================================================== */
.results-section {
  margin: 0 auto;
  padding: 0 20px 60px;
  max-width: var(--max-width);
  display: none;
}
.results-section.visible { display: block; }

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.results-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
}
.results-stats {
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.results-stats .stat-highlight {
  color: var(--success);
  font-weight: 700;
}

.view-toggle {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 3px;
}
.view-toggle button {
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.view-toggle button.active {
  background: var(--primary);
  color: #fff;
}
.view-toggle button:hover:not(.active) {
  color: var(--text);
}

/* Grid view */
.results-grid.grid-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* List view */
.results-grid.list-view {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.results-grid.list-view .result-card {
  display: flex;
  gap: 16px;
  align-items: center;
}
.results-grid.list-view .result-card .result-thumb {
  width: 100px;
  height: 70px;
  flex-shrink: 0;
}
.results-grid.list-view .result-card .result-info {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Result card */
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}
.result-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
  border-color: var(--border-strong);
}
.result-thumb {
  width: 100%;
  height: 180px;
  overflow: hidden;
  background: var(--bg);
  position: relative;
  cursor: pointer;
}
.result-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.result-thumb:hover img { transform: scale(1.05); }

.result-format-badge {
  position: absolute;
  top: 8px; right: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 0.62rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-body {
  padding: 14px;
}
.result-filename {
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.result-sizes {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.result-sizes .arrow { color: var(--text-muted); }

.result-savings {
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.savings-great { color: var(--success); }
.savings-good { color: var(--success); }
.savings-moderate { color: var(--warning); }
.savings-none { color: var(--error); }

.result-format-change {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.result-actions {
  display: flex;
  gap: 8px;
}
.result-actions .btn {
  padding: 7px 14px;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
  flex: 1;
  justify-content: center;
}

/* Error card */
.result-card.error-card {
  border-color: var(--error);
  opacity: 0.7;
}
.result-card.error-card .result-body {
  color: var(--error);
  font-size: 0.82rem;
  text-align: center;
  padding: 20px;
}

/* ===================================================================
   DOWNLOAD ALL BAR
   =================================================================== */
.download-all-bar {
  display: none;
  justify-content: center;
  gap: 16px;
  margin: 30px auto;
  padding: 0 20px;
  align-items: center;
  flex-wrap: wrap;
}
.download-all-bar.visible { display: flex; }

/* ===================================================================
   COMPARISON MODAL
   =================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: var(--overlay);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.visible { display: flex; }

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 1rem; font-weight: 600; }
.modal-close {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.modal-close:hover { background: var(--bg-card); color: var(--text); }
.modal-body { padding: 20px; }

/* Comparison slider */
.comparison-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: ew-resize;
  user-select: none;
  background: var(--bg);
}
.comparison-before, .comparison-after {
  position: absolute;
  inset: 0;
}
.comparison-before { z-index: 2; clip-path: inset(0 50% 0 0); }
.comparison-after { z-index: 1; }
.comparison-before img, .comparison-after img {
  width: 100%; height: 100%;
  object-fit: contain;
}
.comparison-label {
  position: absolute;
  bottom: 12px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  letter-spacing: 0.5px;
}
.comparison-before .comparison-label { left: 12px; }
.comparison-after .comparison-label { right: 12px; }

.comparison-handle {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 3;
  pointer-events: none;
}
.comparison-handle-line {
  flex: 1;
  width: 2px;
  background: #fff;
  box-shadow: 0 0 4px rgba(0,0,0,0.5);
}
.comparison-handle-circle {
  width: 36px; height: 36px;
  background: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  color: #333;
  flex-shrink: 0;
}

/* ===================================================================
   METADATA PANEL
   =================================================================== */
.metadata-panel {
  margin-top: 16px;
  display: none;
}
.metadata-panel.visible { display: block; }
.metadata-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 8px 12px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  gap: 12px;
}
.meta-label { color: var(--text-secondary); white-space: nowrap; }
.meta-value { color: var(--text); text-align: right; font-weight: 500; word-break: break-all; }
.meta-warning { border: 1px solid rgba(255, 71, 87, 0.3); }
.gps-warning {
  color: var(--error);
  font-weight: 700;
  font-size: 0.72rem;
  margin-left: 6px;
  cursor: help;
}
.meta-prompt-text {
  font-size: 0.72rem;
  font-style: italic;
  color: var(--text-secondary) !important;
  max-width: 400px;
}
.meta-empty {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-align: center;
  padding: 16px;
}

/* ===================================================================
   TOAST NOTIFICATIONS
   =================================================================== */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 380px;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.82rem;
  color: var(--text);
  box-shadow: var(--shadow-card);
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.3s ease;
}
.toast.toast-enter { opacity: 1; transform: translateX(0); }
.toast.toast-exit { opacity: 0; transform: translateX(30px); }

.toast-icon { font-size: 1rem; flex-shrink: 0; }
.toast-success .toast-icon { color: var(--success); }
.toast-error .toast-icon { color: var(--error); }
.toast-warning .toast-icon { color: var(--warning); }
.toast-info .toast-icon { color: var(--primary); }

.toast-message { flex: 1; }
.toast-close {
  font-size: 1.1rem;
  color: var(--text-muted);
  padding: 0 2px;
  cursor: pointer;
  transition: color var(--transition);
}
.toast-close:hover { color: var(--text); }

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 28px 0;
  text-align: center;
}
.footer-privacy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 212, 170, 0.08);
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: var(--radius);
  padding: 10px 18px;
  font-size: 0.8rem;
  color: var(--success);
  font-weight: 500;
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 8px;
}
.footer-links a {
  color: var(--text-muted);
  font-size: 0.78rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--primary); text-decoration: none; }
.footer p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ===================================================================
   CONFETTI
   =================================================================== */
.confetti-container {
  position: fixed;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
  overflow: hidden;
}
.confetti-piece {
  position: absolute;
  top: -10px;
  left: var(--x, 50vw);
  width: 8px; height: 8px;
  background: var(--color, #6C63FF);
  border-radius: 2px;
  animation: confettiFall 2.5s var(--delay, 0s) ease forwards;
}
@keyframes confettiFall {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(100vh) rotate(var(--rotation, 720deg)); opacity: 0; }
}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 768px) {
  .hero { padding: 40px 0 20px; }
  .hero h1 { font-size: 1.75rem; }
  .upload-zone { padding: 40px 20px; margin: 16px 16px 0; }
  .upload-icon { width: 48px; height: 48px; }
  .preset-card { min-width: 140px; padding: 12px; }
  .settings-panel { padding: 16px; }
  .results-grid.grid-view { grid-template-columns: 1fr; }
  .result-thumb { height: 160px; }
  .actions-bar { flex-direction: column; padding: 0 16px; }
  .actions-bar .btn { width: 100%; justify-content: center; }
  .toast-container { left: 16px; right: 16px; max-width: none; }
}

@media (max-width: 480px) {
  .header .container { padding: 0 12px; }
  .logo { font-size: 1.05rem; }
  .hero h1 { font-size: 1.5rem; }
  .hero p { font-size: 0.9rem; }
  .upload-zone { padding: 30px 16px; }
  .format-tag { font-size: 0.65rem; padding: 3px 8px; }
  .dimension-inputs { flex-wrap: wrap; }
  .dimension-inputs input { max-width: 100%; }
}

/* ===================================================================
   UTILITIES & ANIMATIONS
   =================================================================== */
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* Fade-in animation */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.4s ease forwards; }

/* Pulse animation for processing */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.pulsing { animation: pulse 1.5s ease-in-out infinite; }

/* Spinner */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }