/* PlateGuard - Modern WebGPU License Plate Blur Tool Styles */

:root {
  --bg-primary: #0a0d14;
  --bg-secondary: #121722;
  --bg-card: #181f2f;
  --bg-card-hover: #1f283d;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-sub: #64748b;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --accent-green: #10b981;
  --accent-purple: #8b5cf6;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
  --font-family: -apple-system, BlinkMacSystemFont, "Pretendard", "Segoe UI", Roboto, sans-serif;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header */
.app-header {
  background-color: rgba(18, 23, 34, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 24px;
}

.header-container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 1.8rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #ffffff, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-badges {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 500;
  border: 1px solid transparent;
}

.badge-privacy {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.25);
}

.badge-hw {
  background: rgba(59, 130, 246, 0.12);
  color: #60a5fa;
  border-color: rgba(59, 130, 246, 0.25);
}

.badge-hw.wasm {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.25);
}

/* Main Layout */
.app-main {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px;
  flex: 1;
  width: 100%;
}

.app-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 1024px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
}

/* Sidebar / Controls */
.controls-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Dropzone */
.dropzone {
  border: 2px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 28px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  background: rgba(0, 0, 0, 0.2);
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.08);
}

.dropzone-icon {
  font-size: 2.2rem;
  margin-bottom: 8px;
}

.dropzone-text {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 4px;
}

.dropzone-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.file-info {
  margin-top: 12px;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  display: none;
  font-size: 0.8rem;
}

.file-info.active {
  display: block;
}

.file-info-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 4px;
  color: var(--text-muted);
}

.file-info-row span:last-child {
  color: var(--text-main);
  font-weight: 500;
}

/* Masking Mode Radios */
.mode-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 16px;
}

.mode-card {
  position: relative;
}

.mode-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.mode-card label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 12px 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.8rem;
  font-weight: 500;
  text-align: center;
  gap: 4px;
}

.mode-card label .mode-icon {
  font-size: 1.2rem;
}

.mode-card input[type="radio"]:checked + label {
  background: rgba(59, 130, 246, 0.15);
  border-color: var(--accent-blue);
  color: #fff;
}

/* Slider Controls */
.control-group {
  margin-bottom: 16px;
}

.control-group:last-child {
  margin-bottom: 0;
}

.control-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.control-value {
  color: var(--text-main);
  font-weight: 600;
}

input[type="range"] {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent-blue);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(59, 130, 246, 0.5);
  transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.color-picker-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

input[type="color"] {
  -webkit-appearance: none;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  background: transparent;
}

input[type="color"]::-webkit-color-swatch {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

/* Toggle Switch */
.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.toggle-label {
  font-size: 0.85rem;
  color: var(--text-main);
}

.toggle-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider-round {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(255, 255, 255, 0.15);
  transition: 0.3s;
  border-radius: 34px;
}

.slider-round:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

input:checked + .slider-round {
  background-color: var(--accent-blue);
}

input:checked + .slider-round:before {
  transform: translateX(20px);
}

/* Viewer & Canvas Section */
.viewer-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.viewer-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.stats-group {
  display: flex;
  gap: 12px;
  font-size: 0.78rem;
}

.stat-item {
  background: rgba(0, 0, 0, 0.3);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
}

.stat-item span {
  color: var(--text-muted);
  margin-right: 4px;
}

/* Canvas Container */
.canvas-wrapper {
  position: relative;
  width: 100%;
  background: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  max-height: 640px;
}

#renderCanvas {
  max-width: 100%;
  max-height: 640px;
  height: auto;
  display: block;
  object-fit: contain;
}

.empty-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-sub);
}

.empty-placeholder .icon {
  font-size: 3.5rem;
  opacity: 0.4;
}

/* Video Controls */
.video-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

.btn-icon {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1rem;
}

.btn-icon:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.15);
}

.btn-icon:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.timeline-slider {
  flex: 1;
}

.time-display {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 90px;
  text-align: right;
}

/* Export CTA Section */
.export-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-md);
  padding: 20px;
}

.export-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #2563eb);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.btn-download {
  background: linear-gradient(135deg, var(--accent-green), #059669);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: none;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.btn-download.active {
  display: inline-flex;
}

.btn-download:hover {
  background: linear-gradient(135deg, #059669, #047857);
}

/* Progress Section */
.progress-container {
  margin-top: 16px;
  display: none;
}

.progress-container.active {
  display: block;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
  border-radius: 9999px;
  transition: width 0.15s ease;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: #1e293b;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideIn 0.2s ease forwards;
}

.toast.success { border-color: rgba(16, 185, 129, 0.4); }
.toast.error { border-color: rgba(239, 68, 68, 0.4); }
.toast.info { border-color: rgba(59, 130, 246, 0.4); }

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

/* Preview Notice Box */
.preview-notice-box {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.84rem;
  line-height: 1.55;
  color: #93c5fd;
  margin-top: 14px;
}

.preview-notice-box .notice-icon {
  font-size: 1.25rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.preview-notice-box strong {
  color: #ffffff;
}

/* Mobile Tips Box */
.mobile-tips-box {
  background: rgba(24, 31, 47, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 16px;
}

.mobile-tips-box .tips-header {
  font-weight: 600;
  color: #f1f5f9;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.86rem;
}

.mobile-tips-box .tips-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 0;
}

.mobile-tips-box .tips-list li {
  position: relative;
  padding-left: 14px;
  line-height: 1.5;
}

.mobile-tips-box .tips-list li::before {
  content: "•";
  position: absolute;
  left: 2px;
  color: var(--accent-blue);
}

.mobile-tips-box .tips-list strong {
  color: #e2e8f0;
}

/* Footer */
.app-footer {
  border-top: 1px solid var(--border-color);
  padding: 16px 24px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-sub);
  margin-top: auto;
}