:root {
  color-scheme: light;
  --bg: #0f1115;
  --card: #1a1d24;
  --text: #f4f5f7;
  --muted: #9aa0ac;
  --accent: #2fbf71;
  --accent-dark: #1f8f52;
  --danger: #e5484d;
  --warn: #d8a12a;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

.topbar {
  padding: env(safe-area-inset-top) 16px 12px;
  text-align: center;
}

.topbar h1 {
  font-size: 1.15rem;
  margin: 12px 0 0;
  font-weight: 600;
}

#app {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 16px 32px;
}

.screen {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding-top: 8px;
}

.screen.active {
  display: flex;
}

#reader {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  margin: 0;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 4px solid #2a2e37;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-top: 48px;
}

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

#loading-text {
  color: var(--muted);
}

.product-card {
  width: 100%;
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.product-image {
  width: 160px;
  height: 160px;
  object-fit: cover;
  border-radius: 10px;
  margin: 0 auto 12px;
  display: block;
  background: #22252d;
}

.product-image.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.product-card h2 {
  margin: 4px 0;
  font-size: 1.2rem;
}

.muted {
  color: var(--muted);
  margin: 2px 0;
}

.muted.small {
  font-size: 0.8rem;
}

.price {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  margin: 10px 0 0;
}

.button-row {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.btn {
  width: 100%;
  padding: 16px;
  font-size: 1.05rem;
  font-weight: 600;
  border-radius: 12px;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #05130a;
}

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

.btn-secondary {
  background: #2a2e37;
  color: var(--text);
}

.banner {
  width: 100%;
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
}

.banner.error {
  background: rgba(229, 72, 77, 0.15);
  color: #ff9a9d;
}

.banner.warn {
  background: rgba(216, 161, 42, 0.15);
  color: #f0c368;
  font-size: 0.85rem;
  padding: 10px;
}

.banner.success {
  background: rgba(47, 191, 113, 0.15);
  color: var(--accent);
}

.banner .big {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 6px;
}

.hidden {
  display: none !important;
}