/* Placard Scanner - Mobile-First Styles */
:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --danger: #ef4444;
  --success: #22c55e;
  --info: #3b82f6;
  --border: #334155;
  --shadow: rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #e2e8f0;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent: #d97706;
  --accent-hover: #b45309;
  --danger: #dc2626;
  --success: #16a34a;
  --info: #2563eb;
  --border: #e2e8f0;
  --shadow: rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* Header */
.app-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header h1 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}

.app-header h1 .icon {
  font-size: 1.3rem;
}

.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.btn-icon {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.2s;
}

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

.home-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  transition: all 0.2s;
}

.home-link:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

/* Main Content */
.app-content {
  max-width: 600px;
  margin: 0 auto;
  padding: 16px;
}

/* Scanner Section */
.scanner-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.camera-container {
  position: relative;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.camera-container.camera-active {
  aspect-ratio: 4/3;
}

.camera-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.camera-container canvas {
  display: none;
}

.camera-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.scan-guide {
  width: 65%;
  aspect-ratio: 1;
  border: 2px dashed var(--accent);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.scan-guide-text {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
  background: rgba(0, 0, 0, 0.6);
  padding: 6px 12px;
  border-radius: 6px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}

.camera-placeholder {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  padding: 40px 20px;
  text-align: center;
  width: 100%;
}

.camera-placeholder .icon {
  font-size: 3rem;
  color: var(--accent);
}

.camera-placeholder p {
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Capture controls */
.capture-controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

.btn-capture {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 4px solid var(--accent);
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: all 0.2s;
}

.btn-capture::after {
  content: '';
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--accent);
  transition: all 0.2s;
}

.btn-capture:hover::after {
  background: var(--accent-hover);
}

.btn-capture:active {
  transform: scale(0.95);
}

.btn-capture:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn {
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

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

.btn-secondary:hover {
  background: var(--bg-card-hover);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-info {
  background: var(--info);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* Manual Entry */
.manual-entry {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.manual-entry h3 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.input-group {
  display: flex;
  gap: 8px;
}

.input-group input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-align: center;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

.input-group input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: normal;
  font-size: 0.9rem;
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

/* Processing indicator */
.processing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.processing p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Results Section */
.results-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Substance Header Card */
.substance-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  border-left: 4px solid var(--accent);
}

.substance-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.un-badge {
  background: var(--accent);
  color: #000;
  font-weight: 800;
  font-size: 1rem;
  padding: 4px 10px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  white-space: nowrap;
}

.substance-name {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.3;
}

.hazard-class-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 8px;
}

.erg-guide-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--info);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 8px;
  margin-left: 6px;
}

.unknown-warning {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 12px 16px;
  border-radius: 8px;
  margin-top: 16px;
  font-size: 0.9rem;
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.unknown-warning i {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.api-source-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--success);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 8px;
  margin-left: 6px;
}

.formula-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--bg-card-hover);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 8px;
  margin-left: 6px;
  font-family: 'JetBrains Mono', monospace;
}

/* Pictograms */
.pictograms-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.pictograms-card h3 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pictogram-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pictogram-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  background: var(--bg-primary);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.pictogram-icon {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transform: rotate(45deg);
  border: 2px solid;
}

.pictogram-icon svg {
  width: 28px;
  height: 28px;
  transform: rotate(-45deg);
}

.pictogram-details h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.pictogram-details .meaning {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 6px;
}

.precautions {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.precaution-item {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding-left: 12px;
  position: relative;
}

.precaution-item::before {
  content: '\2022';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* SDS Links */
.sds-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.sds-card h3 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sds-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sds-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s;
}

.sds-link:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

.sds-link .arrow {
  color: var(--accent);
  font-size: 1.1rem;
}

/* Actions */
.actions-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.actions-card h3 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.email-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.email-form input[type="email"] {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
}

.email-form input[type="email"]::placeholder {
  color: var(--text-muted);
}

.email-form input[type="email"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.action-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.action-buttons .btn {
  flex: 1;
  justify-content: center;
  min-width: 140px;
}

/* Not found card */
.not-found-card {
  background: var(--bg-card);
  border: 1px solid var(--danger);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
}

.not-found-card .icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.not-found-card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.not-found-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.5;
}

/* Scan new button */
.scan-new-btn {
  margin-top: 8px;
}

/* Toast notifications */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 1000;
  box-shadow: 0 4px 20px var(--shadow);
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

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

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

/* Captured image preview */
.captured-preview {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

/* Info text */
.info-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
  padding: 8px;
}

/* Responsive */
@media (min-width: 768px) {
  .app-content {
    padding: 24px;
  }

  .action-buttons .btn {
    min-width: auto;
  }
}

/* Print styles for email fallback */
@media print {
  .app-header,
  .scanner-section,
  .capture-controls,
  .actions-card,
  .scan-new-btn {
    display: none;
  }
}

/* Hidden utility */
.hidden {
  display: none !important;
}