:root {
    --bg-dark: #0f1115;
    --bg-card: #1a1d23;
    --bg-card-urgent: #2a1a15;
    --bg-card-critical: #2a1515;
    --border: #2a2e36;
    --text-primary: #e8e8e8;
    --text-secondary: #8b92a8;
    --green: #22c55e;
    --yellow: #eab308;
    --red: #ef4444;
    --blue: #3b82f6;
    --orange: #f97316;
    --radius: 12px;
}

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

body {
    background: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, sans-serif;
    overflow: hidden;
}

.kds-app {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.kds-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    gap: 24px;
    flex-shrink: 0;
}

.header-left { display: flex; align-items: center; gap: 16px; }
.logo { font-size: 28px; font-weight: 900; letter-spacing: -1px; color: var(--orange); }
.station-badge {
    background: var(--blue);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
}

.header-center { text-align: center; flex: 1; }
.clock { font-size: 32px; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: 2px; }
.date { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }

.header-right { display: flex; gap: 24px; }
.stat { text-align: center; }
.stat-label { display: block; font-size: 11px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; }
.stat-value { display: block; font-size: 24px; font-weight: 800; margin-top: 2px; }
.stat-value.completed { color: var(--green); }

.kds-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
    padding: 20px;
    overflow-y: auto;
    align-content: start;
}

.order-card {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.order-card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 4px;
    background: var(--green);
    transition: background 0.3s;
}

.order-card.urgent { background: var(--bg-card-urgent); border-color: var(--yellow); }
.order-card.urgent::before { background: var(--yellow); }

.order-card.critical { background: var(--bg-card-critical); border-color: var(--red); animation: pulse-red 2s infinite; }
.order-card.critical::before { background: var(--red); }

@keyframes pulse-red {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,0.2); }
    50% { box-shadow: 0 0 20px 4px rgba(239,68,68,0.3); }
}

.card-header { display: flex; justify-content: space-between; align-items: center; }
.order-id { font-size: 20px; font-weight: 800; }
.order-id span { font-size: 13px; color: var(--text-secondary); font-weight: 500; margin-left: 6px; }

.timer {
    font-size: 22px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    padding: 4px 12px;
    border-radius: 8px;
    background: rgba(0,0,0,0.3);
}
.timer.green { color: var(--green); }
.timer.yellow { color: var(--yellow); background: rgba(234,179,8,0.1); }
.timer.red { color: var(--red); background: rgba(239,68,68,0.1); }

.card-meta { display: flex; gap: 12px; font-size: 12px; color: var(--text-secondary); flex-wrap: wrap; }
.meta-tag {
    display: flex; align-items: center; gap: 4px;
    background: rgba(255,255,255,0.05);
    padding: 3px 10px;
    border-radius: 6px;
    white-space: nowrap;
}

.items-list { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.item-row {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 8px 10px;
    background: rgba(255,255,255,0.03);
    border-radius: 8px;
    font-size: 14px;
}
.item-qty {
    background: var(--blue); color: white;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 6px;
    font-weight: 700; font-size: 13px; flex-shrink: 0;
}
.item-name { flex: 1; font-weight: 500; line-height: 1.4; }
.item-note { font-size: 11px; color: var(--yellow); margin-top: 2px; }

.card-actions { display: flex; gap: 8px; margin-top: 4px; }

.btn {
    border: none; border-radius: 8px;
    padding: 10px 16px;
    font-size: 13px; font-weight: 600;
    cursor: pointer; transition: all 0.2s;
    display: flex; align-items: center; gap: 6px;
    font-family: inherit;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--blue); color: white; }
.btn-primary:hover { background: #2563eb; }
.btn-success { background: var(--green); color: white; flex: 1; justify-content: center; font-size: 14px; }
.btn-success:hover { background: #16a34a; }
.btn-danger { background: var(--red); color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.btn-sm { padding: 6px 12px; font-size: 12px; }

.kds-footer {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 24px;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    gap: 16px; flex-shrink: 0;
}
.footer-left, .footer-right { display: flex; gap: 10px; }
.urgency-bar { display: flex; gap: 20px; }
.urgency-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-secondary); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.green { background: var(--green); }
.dot.yellow { background: var(--yellow); }
.dot.red { background: var(--red); }

.modal {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7);
    align-items: center; justify-content: center;
    z-index: 100;
}
.modal.active { display: flex; }

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    width: 420px; max-width: 90vw;
}
.modal-content h2 { margin-bottom: 20px; font-size: 20px; }

.setting-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.setting-row label { font-size: 14px; color: var(--text-secondary); }
.setting-row input[type="text"],
.setting-row input[type="number"] {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    width: 140px;
    font-size: 14px; font-family: inherit;
}
.setting-row input:focus { outline: none; border-color: var(--blue); }

.toggle { position: relative; width: 44px; height: 24px; }
.toggle input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; inset: 0;
    background: var(--border);
    border-radius: 24px;
    cursor: pointer; transition: 0.3s;
}
.slider::before {
    content: ''; position: absolute;
    height: 18px; width: 18px;
    left: 3px; bottom: 3px;
    background: white;
    border-radius: 50%; transition: 0.3s;
}
.toggle input:checked + .slider { background: var(--green); }
.toggle input:checked + .slider::before { transform: translateX(20px); }

.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

.empty-state {
    grid-column: 1 / -1;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 60px;
    color: var(--text-secondary);
    gap: 12px;
}
.empty-state .icon { font-size: 48px; opacity: 0.3; }
.empty-state p { font-size: 16px; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3a3e48; }