/* Binventory - Clean, mobile-first storage app */
:root {
    --bg: #f8f9fa;
    --surface: #fff;
    --text: #1a1a1a;
    --text-muted: #6c757d;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --danger: #dc2626;
    --border: #e5e7eb;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; }
.main { max-width: 900px; margin: 0 auto; padding: 1.5rem; }

.header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.logo { font-weight: 700; font-size: 1.25rem; text-decoration: none; color: var(--text); }
.search-form { display: flex; flex: 1; min-width: 180px; max-width: 400px; gap: 0.5rem; }
.search-input { flex: 1; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 1rem; }
.btn-scan { padding: 0.5rem 1rem; background: var(--primary); color: white; border: none; border-radius: var(--radius); font-weight: 600; cursor: pointer; font-size: 1rem; }
.btn-scan:hover { background: var(--primary-hover); }
.nav { display: flex; align-items: center; gap: 1rem; margin-left: auto; }
.user-menu { display: flex; align-items: center; gap: 0.5rem; }
.btn-link { background: none; border: none; color: var(--primary); cursor: pointer; font-size: inherit; text-decoration: underline; }
.btn-link:hover { color: var(--primary-hover); }

.btn { display: inline-block; padding: 0.5rem 1rem; border-radius: var(--radius); text-decoration: none; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; font-size: 1rem; }
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); color: white; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }
.btn-search { padding: 0.5rem 1rem; }
.btn-sm { padding: 0.25rem 0.5rem; font-size: 0.875rem; }

.page-header { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.page-header h1 { margin: 0; font-size: 1.5rem; }

.bin-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.75rem; }
.bin-card { display: flex; align-items: center; justify-content: space-between; padding: 1rem; background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); }
.bin-link { text-decoration: none; color: inherit; flex: 1; }
.bin-name { font-weight: 600; display: block; }
.bin-count { font-size: 0.875rem; color: var(--text-muted); }
.bin-actions { display: flex; gap: 0.5rem; }
.bin-actions-inline { display: flex; gap: 0.5rem; align-items: center; }

.qr-thumb-trigger { padding: 0; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.qr-thumb-trigger:hover { background: var(--bg); }
.qr-thumb { width: 40px; height: 40px; display: block; }

.qr-modal-content { text-align: center; }
.qr-image-full { display: block; width: 100%; max-width: 280px; height: auto; aspect-ratio: 1; margin: 1rem auto; object-fit: contain; }
.qr-modal-actions { display: flex; gap: 0.5rem; justify-content: center; margin-top: 1rem; flex-wrap: wrap; }

.item-grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 1rem; }
.item-card a { display: block; text-decoration: none; color: inherit; }
.item-thumb { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--radius); }
.item-thumb-placeholder { width: 100%; aspect-ratio: 1; background: var(--border); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; font-size: 0.75rem; color: var(--text-muted); }
.item-name { display: block; font-weight: 600; margin-top: 0.25rem; }
.item-category, .item-bin { display: block; font-size: 0.75rem; color: var(--text-muted); }

.item-detail { display: flex; gap: 2rem; flex-wrap: wrap; }
.item-photo { max-width: 300px; border-radius: var(--radius); }
.item-photo-placeholder { width: 200px; height: 200px; background: var(--border); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--text-muted); }
.item-info { flex: 1; min-width: 200px; }
.item-notes { white-space: pre-wrap; }
.item-actions { display: flex; gap: 0.5rem; }

.auth-form-container { max-width: 400px; margin: 2rem auto; padding: 2rem; background: var(--surface); border-radius: var(--radius); box-shadow: var(--shadow); }
.auth-form .form-group { margin-bottom: 1rem; }
.auth-form-container h1 { margin-top: 0; }
.auth-form-container .btn { margin-top: 0.5rem; }

.form .form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.25rem; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 1rem; }
.form-group .form-control { margin-top: 0.5rem; }
.form-group small { display: block; margin-top: 0.25rem; font-size: 0.75rem; color: var(--text-muted); }
.inline-form { display: inline; }

.search-form-large { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; }
.search-input-large { flex: 1; padding: 0.75rem 1rem; border: 1px solid var(--border); border-radius: var(--radius); font-size: 1.125rem; }
.result-count { color: var(--text-muted); margin-bottom: 1rem; }

.empty-state { color: var(--text-muted); }
.error { color: var(--danger); margin-bottom: 1rem; }
.success { color: #059669; margin-bottom: 1rem; }

.modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.7); z-index: 1000; align-items: center; justify-content: center; padding: 1rem; overflow-y: auto; }
.modal.is-open { display: flex; }
.modal-content { background: var(--surface); padding: 1.5rem; border-radius: var(--radius); max-width: min(400px, calc(100vw - 2rem)); max-height: 90vh; overflow: auto; position: relative; margin: auto; }
.modal-close { position: absolute; top: 0.5rem; right: 0.5rem; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-muted); }
.modal-close:hover { color: var(--text); }
.scanner-hint { margin-top: 1rem; color: var(--text-muted); text-align: center; }
#qrReader { min-width: 250px; }

.current-photo .thumb { max-width: 80px; max-height: 80px; border-radius: var(--radius); }
.current-photo { margin-bottom: 0.5rem; }

@media (max-width: 600px) {
    .header { flex-direction: column; align-items: stretch; }
    .search-form { max-width: none; }
    .nav { margin-left: 0; }
}