:root {
  --green: #2f9e44;
  --amber: #f08c00;
  --red: #e03131;
  --gray: #868e96;
  --bg: #f8f9fa;
  --card: #ffffff;
  --text: #212529;
  --border: #e9ecef;
}

* { box-sizing: border-box; }

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px;
}

h1 { font-size: 22px; margin: 8px 0 16px; }

.btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 8px;
  border: none;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary { background: var(--green); color: #fff; }
.btn-secondary { background: #f1f3f5; color: var(--text); }
.btn-danger { background: var(--red); color: #fff; margin-top: 20px; }

.scanner { margin-bottom: 16px; }
.scan-video-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
  aspect-ratio: 3 / 4;
}
.scan-video-wrap video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.scan-frame {
  position: absolute;
  inset: 12% 10%;
  border: 3px solid rgba(255, 255, 255, 0.85);
  border-radius: 14px;
  box-shadow: 0 0 0 999px rgba(0, 0, 0, 0.25);
  pointer-events: none;
}
.scan-status {
  text-align: center;
  font-size: 14px;
  color: var(--gray);
  margin: 12px 0;
  min-height: 20px;
}
.scan-status-error { color: var(--red); }
#scan-retry-btn { display: block; margin: 0 auto; }

.product-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 5px solid var(--gray);
  border-radius: 10px;
  overflow: hidden;
}
.product-card.status-ok { border-left-color: var(--green); }
.product-card.status-soon { border-left-color: var(--amber); }
.product-card.status-expired { border-left-color: var(--red); }

.product-link { display: block; padding: 14px 16px; text-decoration: none; color: var(--text); }
.product-name { font-weight: 600; margin-bottom: 6px; }
.product-meta { display: flex; gap: 10px; align-items: center; font-size: 13px; color: var(--gray); flex-wrap: wrap; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: #f1f3f5;
  color: var(--gray);
  font-size: 12px;
}
.badge-ok { background: #ebfbee; color: var(--green); }
.badge-soon { background: #fff9db; color: var(--amber); }
.badge-expired { background: #fff5f5; color: var(--red); }
.badge-lg { font-size: 14px; padding: 6px 12px; }

.empty { color: var(--gray); }

.form { display: flex; flex-direction: column; gap: 4px; background: var(--card); padding: 16px; border-radius: 10px; border: 1px solid var(--border); }
.form label { font-size: 13px; color: var(--gray); margin-top: 10px; }
.form input, .form textarea {
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 15px;
  font-family: inherit;
  width: 100%;
}
.form .row { display: flex; gap: 10px; }
.form .row > div { flex: 1; }
.form .checkbox { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text); margin-top: 12px; }
.form .checkbox input { width: auto; }
.form button { margin-top: 18px; }

.hint { font-size: 13px; color: var(--gray); margin: 6px 0 0; }
.error { color: var(--red); background: #fff5f5; padding: 10px; border-radius: 8px; }

.back-link { display: inline-block; margin-bottom: 12px; color: var(--gray); text-decoration: none; font-size: 14px; }

.product-detail { background: var(--card); border-radius: 10px; padding: 16px; border: 1px solid var(--border); }
.details-table { width: 100%; border-collapse: collapse; margin-top: 14px; }
.details-table th { text-align: left; color: var(--gray); font-weight: 500; font-size: 13px; padding: 8px 0; vertical-align: top; width: 40%; }
.details-table td { padding: 8px 0; font-size: 14px; }
.mono { font-family: ui-monospace, monospace; }
.small { font-size: 11px; word-break: break-all; }

.section-title { font-size: 15px; margin: 20px 0 4px; color: var(--text); }
.details-table.compact th, .details-table.compact td { font-size: 13px; padding: 6px 0; }

.section-collapse { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 10px; }
.section-collapse summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
}
.section-collapse summary::-webkit-details-marker { display: none; }
.section-collapse summary::before { content: '▸ '; color: var(--gray); }
.section-collapse[open] summary::before { content: '▾ '; }
.section-collapse table { margin-top: 10px; }