:root {
  --color-primary: #0b5fa4;
  --color-primary-dark: #084a80;
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-text: #1c1c1e;
  --color-muted: #6b7280;
  --color-error: #b3261e;
  --color-error-bg: #fdecea;
  --radius: 12px;
  --spacing: 16px;
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-header {
  background: var(--color-primary);
  color: #fff;
  padding: calc(var(--spacing) * 0.75) var(--spacing);
  text-align: center;
}

.app-header h1 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
}

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing);
  gap: var(--spacing);
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.view {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing);
}

.reader {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  aspect-ratio: 1 / 1;
}

.camera-controls {
  width: 100%;
  max-width: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.zoom-control {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 160px;
}

.zoom-control label {
  color: var(--color-muted);
  font-size: 0.85rem;
}

.zoom-control input[type="range"] {
  flex: 1;
}

.camera-controls .btn {
  width: auto;
  padding: 8px 16px;
}

.hint {
  color: var(--color-muted);
  text-align: center;
  font-size: 0.95rem;
  margin: 0;
}

.result-content {
  width: 100%;
}

.status-message {
  text-align: center;
  color: var(--color-muted);
}

.error-message {
  text-align: center;
  color: var(--color-error);
  background: var(--color-error-bg);
  border-radius: var(--radius);
  padding: var(--spacing);
  margin: 0;
}

.raw-code {
  text-align: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.85rem;
  color: var(--color-muted);
  word-break: break-all;
  margin: 8px 0 0;
}

.product-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: var(--spacing);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.product-image {
  width: 100%;
  max-width: 260px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 8px;
  background: #fafafa;
}

.product-ditta {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  margin: 0;
}

.product-codice {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: 0;
}

.product-descr {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
}

.product-prezzo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 4px 0;
}

.product-ean {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: 0;
}

.btn {
  border: none;
  border-radius: var(--radius);
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  max-width: 320px;
}

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

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

.btn-text {
  background: transparent;
  color: var(--color-muted);
}

.banner {
  position: fixed;
  left: var(--spacing);
  right: var(--spacing);
  bottom: var(--spacing);
  max-width: 420px;
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: var(--spacing);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.banner p {
  margin: 0 0 12px;
  font-size: 0.95rem;
}

.banner-actions {
  display: flex;
  gap: 8px;
}

.banner-actions .btn {
  width: auto;
  flex: 1;
}

.offline-page {
  text-align: center;
  justify-content: center;
  flex: 1;
}