:root {
    --bg: #f4f5f7;
    --panel: #ffffff;
    --text: #1c1e21;
    --muted: #6b7280;
    --primary: #2563eb;
    --danger: #dc2626;
    --success: #16a34a;
    --border: #e5e7eb;
    --radius: 12px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #16171a;
        --panel: #1f2023;
        --text: #f0f0f0;
        --muted: #9aa0a6;
        --border: #2c2d31;
    }
}

* { box-sizing: border-box; }

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

.topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar h1 { font-size: 1.1rem; margin: 0; flex: 1 1 auto; }

.topnav { display: flex; gap: 12px; margin-left: auto; }
.topnav a { color: var(--primary); text-decoration: none; font-size: 0.9rem; }

.scanner-toggle { display: flex; gap: 4px; flex-wrap: wrap; }
.scanner-toggle button {
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--text);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    cursor: pointer;
}
.scanner-toggle button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

#scanner-catch {
    position: fixed;
    top: -100px;
    left: -100px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

main { padding: 16px; max-width: 960px; margin: 0 auto; }

.empty-state { text-align: center; color: var(--muted); padding: 40px 16px; }

.material-group { margin-bottom: 24px; }
.material-group h2 { font-size: 1.2rem; border-bottom: 2px solid var(--primary); padding-bottom: 4px; }
.family-group { margin: 12px 0; }
.family-group h3 { font-size: 1rem; color: var(--muted); margin: 8px 0; }

.chip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
}

.chip {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 10px 8px 12px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    min-height: 96px;
    font-family: inherit;
    color: var(--text);
    text-align: center;
}

.chip:active { transform: scale(0.97); }

.chip.out-of-stock { opacity: 0.55; }

.chip-swatch {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-size: cover;
    background-position: center;
    background-color: #ddd;
    border: 1px solid var(--border);
}
.chip-swatch.small { width: 24px; height: 24px; display: inline-block; vertical-align: middle; margin-right: 6px; }

.chip-label { font-size: 0.8rem; line-height: 1.2; }
.chip-qty {
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--bg);
    border-radius: 999px;
    min-width: 28px;
    padding: 2px 8px;
}

.badge {
    position: absolute;
    top: 4px;
    right: 4px;
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 999px;
    color: #fff;
    font-weight: 600;
}
.badge-out { background: var(--danger); }
.badge-new { background: var(--success); left: 4px; right: auto; top: 4px; }

dialog {
    border: none;
    border-radius: var(--radius);
    padding: 0;
    max-width: 360px;
    width: 90vw;
    background: var(--panel);
    color: var(--text);
}
dialog::backdrop { background: rgba(0,0,0,0.5); }

.item-dialog-form {
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: relative;
}

.dialog-close {
    position: absolute;
    top: 8px;
    right: 8px;
    border: none;
    background: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--muted);
}

#dlg-thumb {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--bg);
}

.qty-control { display: flex; align-items: center; gap: 16px; }
.qty-control button {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg);
    font-size: 1.5rem;
    cursor: pointer;
}
#dlg-qty { font-size: 1.8rem; font-weight: 700; min-width: 48px; text-align: center; }

.qty-quick { display: flex; gap: 8px; }
.qty-quick input { width: 80px; padding: 8px; border-radius: 8px; border: 1px solid var(--border); }

.buy-button {
    display: block;
    width: 100%;
    text-align: center;
    padding: 12px;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
}

button, input, select {
    font-family: inherit;
    font-size: 1rem;
}

.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text);
    color: var(--bg);
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 0.9rem;
    z-index: 100;
}

/* Login page */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box {
    background: var(--panel);
    padding: 32px;
    border-radius: var(--radius);
    width: 90vw;
    max-width: 320px;
    text-align: center;
}
.login-box form { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.login-box input {
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
}
.login-box button {
    padding: 12px;
    border-radius: 8px;
    border: none;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}
.error { color: var(--danger); font-size: 0.9rem; }

/* Settings page */
.settings-main { max-width: 720px; }
.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
}
.panel h2 { margin-top: 0; font-size: 1.1rem; }
.muted { color: var(--muted); font-size: 0.85rem; }

.family-details { border-bottom: 1px solid var(--border); padding: 8px 0; }
.family-details summary {
    cursor: pointer;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}
.always-all { font-size: 0.85rem; display: flex; align-items: center; gap: 4px; margin-left: auto; }

.variant-list { list-style: none; padding: 0; margin: 8px 0 0; }
.variant-list li { display: flex; align-items: center; gap: 8px; padding: 6px 0; flex-wrap: wrap; }
.variant-list li.discontinued { opacity: 0.5; }
.color-name-edit {
    border: 1px solid transparent;
    background: transparent;
    color: var(--text);
    padding: 2px 4px;
    border-radius: 4px;
}
.color-name-edit:focus { border-color: var(--border); background: var(--bg); }

.link-btn {
    border: none;
    background: none;
    color: var(--primary);
    cursor: pointer;
    font-size: 0.8rem;
    padding: 0;
}

.inline-form { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.inline-form input, .inline-form select {
    padding: 8px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
}
.inline-form button {
    padding: 8px 14px;
    border-radius: 6px;
    border: none;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
}

#sync-progress-bar { width: 100%; }
.sync-log-list { list-style: none; padding: 0; max-height: 200px; overflow-y: auto; font-size: 0.85rem; }
.sync-log-list li { padding: 2px 0; }
.sync-log-list li.fail { color: var(--danger); }

.mapping-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.mapping-table th, .mapping-table td { text-align: left; padding: 6px; border-bottom: 1px solid var(--border); }

.search-results { max-height: 300px; overflow-y: auto; }
.search-result-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
}
.search-result-item:hover { background: var(--bg); }