:root {
    color-scheme: light;
    --bg: #f3f5fb;
    --card: #ffffff;
    --text: #1d1f2a;
    --muted: #60657a;
    --primary: #2f5bff;
    --danger: #d9204b;
    --border: #e4e8f3;
    --highlight: #fff2bf;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-weight: 400;
}

.page { padding: 1rem; max-width: 1360px; margin: 0 auto; }
.page-center { min-height: 100dvh; display: grid; place-items: center; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1rem;
    box-shadow: 0 8px 28px rgba(20, 25, 56, 0.06);
    margin-bottom: 1rem;
}

.auth-card { width: min(420px, 100%); }
h1, h2, h3 { margin: 0 0 .55rem; line-height: 1.25; font-weight: 600; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.05rem; font-weight: 500; }
.muted { color: var(--muted); font-size: .92rem; }
.stack { display: grid; gap: .9rem; }
label { font-size: .95rem; display: grid; gap: .35rem; font-weight: 500; }

input {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: .8rem .9rem;
    font-size: 1rem;
}

.btn {
    border: none;
    background: var(--primary);
    color: #fff;
    padding: .8rem 1rem;
    border-radius: 12px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    justify-content: center;
    align-items: center;
}

.btn-light {
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text);
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: .8rem 1rem;
    background: #fff;
    border-bottom: 1px solid var(--border);
}

.search-form { display: grid; gap: .7rem; }
.search-row { display: grid; grid-template-columns: minmax(0, 4fr) minmax(120px, 1fr); align-items: end; gap: .7rem; }
.search-label { font-weight: 500; width: 100%; margin: 0; }
.search-label input { min-height: 46px; }
.search-row .btn { width: 100%; min-height: 46px; padding: 0 1rem; }
.search-hint { color: var(--muted); font-size: .78rem; margin-top: -.25rem; }

.scan-btn { display: none; }
.scanner-panel {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: .6rem;
    background: #fafbff;
}
.scanner-reader {
    width: 100%;
    min-height: 220px;
}
.scanner-video {
    width: 100%;
    border-radius: 10px;
    background: #000;
    min-height: 220px;
    object-fit: cover;
}
.scanner-status {
    display: block;
    margin-top: .5rem;
    color: var(--muted);
    font-size: .78rem;
}
.stop-scan-btn { margin-top: .6rem; }
.alert {
    margin-top: .8rem;
    padding: .8rem;
    border-radius: 10px;
    background: #eef2ff;
    font-size: .93rem;
}
.alert-error { background: #fde7ed; color: #6d1025; }

.article-summary p {
    margin: 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: .95rem;
}

.table-wrap { overflow-x: auto; margin-top: .6rem; }

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 700px;
}
th, td {
    border: 1px solid var(--border);
    padding: .55rem;
    text-align: center;
    vertical-align: middle;
    font-size: .93rem;
    font-weight: 400;
}
th { background: #f8faff; font-weight: 500; }

.size-label { font-weight: 500; font-size: .88rem; }
.meta-code {
    display: block;
    color: var(--muted);
    font-weight: 400;
    font-size: .72rem;
    line-height: 1.2;
    text-align: left;
    max-width: 120px;
    margin-top: .12rem;
    overflow-wrap: anywhere;
}


.stock-negative {
    color: #b20020;
    font-weight: 700;
}

.store-highlight th,
.store-highlight td {
    background: var(--highlight);
}

.store-highlight th {
    color: #4f3d00;
    font-weight: 600;
}

@media (max-width: 760px) {
    .page { padding: .8rem; }
    .card { border-radius: 12px; padding: .85rem; }
    .btn { width: 100%; }
    .search-row { display: grid; }
    .search-label, .search-row .btn { width: 100%; }
    .scan-btn { display: inline-flex; }
    .topbar { align-items: flex-start; gap: .6rem; }
    h2 { font-size: 1.12rem; }
    h3 { font-size: .98rem; }
    .meta-code { font-size: .68rem; max-width: 100px; }
    th, td { padding: .5rem; font-size: .88rem; }
}