:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface2: #232735;
    --border: #2d3248;
    --text: #e4e6f0;
    --text-muted: #8b8fa3;
    --accent: #714B67;
    --accent-hover: #8b5f80;
    --new: #3b82f6;
    --repair: #f59e0b;
    --resale: #10b981;
    --scrap: #ef4444;
    --closed: #6b7280;
    --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ── Navbar ─────────────────────────────── */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}
.nav-links { display: flex; gap: 0.5rem; }
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius);
    transition: all 0.15s;
}
.nav-links a:hover, .nav-links a.active {
    color: var(--text);
    background: var(--surface2);
}
.nav-sync {
    background: var(--accent) !important;
    color: var(--text) !important;
}

/* ── Container ──────────────────────────── */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* ── Flash messages ─────────────────────── */
.flash-container { padding: 0.5rem 1.5rem; }
.flash {
    padding: 0.6rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}
.flash-success { background: #064e3b; color: #6ee7b7; }
.flash-error { background: #7f1d1d; color: #fca5a5; }

/* ── Stat cards ─────────────────────────── */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
    text-decoration: none;
    color: var(--text);
    transition: all 0.15s;
    border-top: 3px solid var(--border);
}
.stat-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.stat-card.new { border-top-color: var(--new); }
.stat-card.repair { border-top-color: var(--repair); }
.stat-card.resale { border-top-color: var(--resale); }
.stat-card.scrap { border-top-color: var(--scrap); }
.stat-card.closed { border-top-color: var(--closed); }
.stat-number { font-size: 2.5rem; font-weight: 700; }
.stat-label { color: var(--text-muted); margin-top: 0.3rem; }

/* ── Buttons ────────────────────────────── */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.15s;
}
.btn:hover { background: var(--surface2); }
.btn-primary { background: var(--accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--surface2); }
.btn-active { background: var(--accent); border-color: var(--accent); color: #fff; }
.actions-bar { margin-top: 1rem; }

/* ── Filter bar ─────────────────────────── */
.filter-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

/* ── Kanban ──────────────────────────────── */
.kanban-board {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    min-height: 400px;
}
.kanban-column {
    min-width: 260px;
    max-width: 320px;
    flex: 1;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.kanban-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.85rem;
}
.kanban-count {
    background: var(--surface2);
    padding: 0.15rem 0.5rem;
    border-radius: 12px;
    font-size: 0.8rem;
}
.kanban-cards { padding: 0.5rem; display: flex; flex-direction: column; gap: 0.5rem; }
.kanban-card {
    display: block;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    text-decoration: none;
    color: var(--text);
    transition: all 0.15s;
}
.kanban-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.card-sku { font-family: monospace; font-size: 0.75rem; color: var(--text-muted); }
.card-name { font-size: 0.85rem; margin: 0.25rem 0; }
.card-meta {
    display: flex;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.card-supplier { font-size: 0.75rem; color: var(--repair); margin-top: 0.3rem; }
.card-defect {
    font-size: 0.7rem;
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    display: inline-block;
    margin-top: 0.3rem;
}

/* ── Case detail ────────────────────────── */
.back-link { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
.back-link:hover { color: var(--text); }
.case-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
}
.case-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}
@media (max-width: 768px) {
    .case-grid { grid-template-columns: 1fr; }
    .kanban-board { flex-direction: column; }
    .kanban-column { max-width: 100%; min-width: 100%; }
}
.case-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
}
.case-section h2 {
    font-size: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}
.info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    font-size: 0.9rem;
}
.info-row .label { color: var(--text-muted); }
.mono { font-family: monospace; }

/* ── Forms ──────────────────────────────── */
.form-group { margin-bottom: 0.75rem; }
.form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}
.form-group select, .form-group input, .form-group textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.9rem;
}
.form-group select:focus, .form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* ── Photos ─────────────────────────────── */
.photos-section { margin-top: 1.5rem; }
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}
.photo-card {
    background: var(--surface2);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}
.photo-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}
.photo-desc {
    padding: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.upload-form {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    flex-wrap: wrap;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}
.upload-form .form-group { margin-bottom: 0; }

/* ── Badges ─────────────────────────────── */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-new { background: rgba(59,130,246,0.2); color: #93c5fd; }
.badge-repair { background: rgba(245,158,11,0.2); color: #fcd34d; }
.badge-resale { background: rgba(16,185,129,0.2); color: #6ee7b7; }
.badge-scrap { background: rgba(239,68,68,0.2); color: #fca5a5; }

/* ── Table ──────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
}
.data-table th {
    background: var(--surface2);
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
}
.data-table td {
    padding: 0.65rem 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
}
.data-table tr:hover td { background: var(--surface2); }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }

/* ── Footer ─────────────────────────────── */
.footer {
    display: flex;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}
.footer a { color: var(--text-muted); }
.case-footer {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
    font-size: 0.8rem;
}

/* ── Error page ─────────────────────────── */
.error-page { text-align: center; padding: 4rem 1rem; }
.error-page h1 { font-size: 2rem; margin-bottom: 1rem; }
.error-msg {
    color: var(--scrap);
    background: rgba(239,68,68,0.1);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 2rem;
    font-family: monospace;
}