:root {
  color-scheme: light;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: #0b1b2b;
  color: #0f172a;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, #0b1b2b 0%, #13263d 40%, #223a56 100%);
}

.app-header {
  padding: 1.25rem 1.5rem 0.75rem;
  background-color: transparent;
  color: #f8fafc;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-img {
  width: clamp(3rem, 8vw, 4rem);
  height: clamp(3rem, 8vw, 4rem);
  object-fit: contain;
  flex-shrink: 0;
}

.app-header h1 {
  margin: 0;
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
}

.app-version {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  opacity: 0.7;
}

.app-main {
  flex: 1;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.controls-card,
.preview-section,
.table-section {
  background: #f8fbff;
  border-radius: 1.25rem;
  padding: 1.5rem;
  box-shadow: 0 12px 40px rgba(5, 27, 45, 0.25);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.action-btn {
  flex: 1;
  min-width: 8rem;
  padding: 0.9rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.75rem;
  border: none;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
  box-shadow: 0 6px 16px rgba(12, 74, 110, 0.25);
}

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

.action-btn:not(:disabled):active {
  transform: translateY(1px);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.35);
}

.action-btn.primary {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #ffffff;
}

.action-btn.secondary {
  background: linear-gradient(135deg, #64748b, #475569);
  color: #ffffff;
}

.action-btn.danger {
  background: linear-gradient(135deg, #b91c1c, #dc2626);
  color: #ffffff;
}

.action-btn.neutral {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  margin-top: 1rem;
  width: 100%;
}

.status-message {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  color: #0f172a;
  line-height: 1.4;
}

.preview-section.hidden {
  display: none;
}

.preview-frame {
  position: relative;
  border-radius: 1.1rem;
  overflow: hidden;
  border: 10px solid rgba(37, 100, 235, 0.205);
}

@keyframes scan-blink {
  0%, 100% { 
    border-color: rgba(235, 37, 37, 0.205);
    box-shadow: none;
  }
  50% { 
    border-color: rgb(235, 37, 37);
    box-shadow: inset 0 0 0 1000px rgba(37, 100, 235, 0.3);
  }
}

.preview-frame.scanning {
  animation: scan-blink 0.5s ease-in-out;
}

#cameraPreview {
  width: 100%;
  height: auto;
  background: #000000;
}

.preview-hint {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: #1f2937;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.section-header h2 {
  margin: 0;
  font-size: 1.2rem;
  color: #0f172a;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3rem;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #ffffff;
  font-weight: 700;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: 0.85rem;
  border: 1px dashed rgba(30, 64, 175, 0.35);
  background: #eef2ff;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 32rem;
}

thead {
  background: rgba(59, 130, 246, 0.15);
}

th,
td {
  padding: 0.75rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid rgba(148, 163, 184, 0.4);
  font-size: 0.95rem;
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:nth-child(even) {
  background: rgba(226, 232, 240, 0.4);
}

.empty-row td {
  text-align: center;
  color: #475569;
  font-style: italic;
}

.app-footer {
  padding: 1rem;
  text-align: center;
  color: rgba(226, 232, 240, 0.85);
  font-size: 0.9rem;
}

@media (min-width: 768px) {
  .app-main {
    max-width: 900px;
    margin: 0 auto 2rem;
    width: 100%;
  }

  .button-row {
    gap: 1rem;
  }

  .action-btn {
    font-size: 1.05rem;
  }

  .action-btn.neutral {
    max-width: 18rem;
    margin-left: auto;
  }
}