:root {
    --primary: #6a1b9a;
    --primary-dark: #4a148c;
    --primary-light: #9c4dcc;
    --accent: #ffc107;
    --accent-hover: #ffb300;
    --success: #4caf50;
    --warning: #ff9800;
    --info: #00bcd4;
    --bg-dark: linear-gradient(135deg, #ede7f6 0%, #d1c4e9 100%);
    --border: #ce93d8;
    --text: #1a1a1a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', system-ui, sans-serif; overflow: hidden; background: var(--bg-dark); color: var(--text); }

.app-layout { display: flex; height: calc(100vh - 90px); width: 100vw; }

/* ========== AQM BD HEADER ========== */
.aqm-header {
    background: linear-gradient(135deg, #8b0000 0%, #a52a2a 100%);
    padding: 10px 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.aqm-header img {
    width: 45px;
    height: 45px;
    object-fit: contain;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.3);
}
.aqm-header h1 {
    font-size: 18px;
    font-weight: 700;
    color: white;
    letter-spacing: 0.5px;
}
.aqm-header p {
    font-size: 10px;
    color: rgba(255,255,255,0.8);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Navigation */
.aqm-nav {
    background: linear-gradient(135deg, #37474f, #455a64);
    display: flex;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.aqm-nav a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    padding: 12px 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all 0.3s;
    border-bottom: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 6px;
}
.aqm-nav a:hover {
    color: white;
    background: rgba(0,0,0,0.15);
}
.aqm-nav a.active {
    color: #ffc107;
    background: rgba(0,0,0,0.2);
    border-bottom-color: #ffc107;
}

/* --- SIDEBAR --- */
.sidebar {
    width: 400px;
    background: #fff;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 20;
    box-shadow: 2px 0 15px rgba(0,0,0,0.05);
}

.brand {
    padding: 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    display: flex;
    align-items: center;
    gap: 12px;
}
.brand .icon { font-size: 24px; }
.brand h1 { font-size: 20px; letter-spacing: 0.5px; }

.scroll-wrapper { flex: 1; overflow-y: auto; padding: 20px; background: #f8fafc; }
.scroll-wrapper::-webkit-scrollbar { width: 6px; }
.scroll-wrapper::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

.control-section { margin-bottom: 25px; }

.section-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-weight: 700;
    color: #64748b;
    margin-bottom: 12px;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 5px;
}

/* --- CONTAINER BUTTONS --- */
.btn-group { display: flex; flex-direction: column; gap: 8px; }

.cont-btn {
    width: 100%; display: flex; align-items: center; gap: 12px;
    padding: 14px; background: #fff; border: 2px solid var(--border);
    border-radius: 8px; cursor: pointer;
    transition: all 0.2s; text-align: left;
}
.cont-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.cont-btn.active { border-color: var(--accent); background: #e8f5f5; box-shadow: 0 0 0 2px rgba(13,115,119,0.2); }

.cont-icon { 
    width: 40px; height: 40px; background: var(--accent); color: white;
    border-radius: 8px; display: flex; align-items: center; justify-content: center; 
    font-weight: bold; font-size: 12px;
}
.cont-icon.truck { background: var(--success); font-size: 18px; }

.cont-info strong { display: block; font-size: 14px; color: #1e293b; margin-bottom: 2px; }
.cont-info span { font-size: 12px; color: #64748b; font-family: monospace; }

/* --- SETTINGS GRID --- */
.settings-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.setting-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
}

.setting-item label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 6px;
}

.setting-item input,
.setting-item select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    font-family: monospace;
}

.setting-item input:focus,
.setting-item select:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(13,115,119,0.1);
}

.setting-hint {
    display: block;
    font-size: 10px;
    color: #94a3b8;
    margin-top: 4px;
}

/* Side visibility toggles */
.setting-item.full-width {
    grid-column: 1 / -1;
}
.side-toggles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 8px;
}
.side-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}
.side-toggle:hover {
    background: #f0fdfa;
    border-color: var(--accent);
}
.side-toggle input[type="checkbox"] {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
}

/* --- BUTTONS --- */
.btn-add {
    width: 100%; padding: 12px; border: 2px dashed #94a3b8;
    background: transparent; color: #64748b; font-weight: 700;
    border-radius: 8px; cursor: pointer; transition: 0.2s;
    margin-top: 10px;
}
.btn-add:hover { border-color: var(--accent); color: var(--accent); background: #fff; }

.action-footer { padding: 20px; border-top: 1px solid var(--border); background: #fff; }

.btn-primary {
    width: 100%; padding: 16px; 
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: white; border: none; border-radius: 8px; 
    font-weight: 700; font-size: 14px; cursor: pointer;
    box-shadow: 0 4px 15px rgba(13, 115, 119, 0.3); 
    transition: 0.2s; letter-spacing: 0.5px;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(13, 115, 119, 0.4); }

.btn-checkout {
    width: 100%; padding: 14px; margin-top: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white; border: none; border-radius: 8px; 
    font-weight: 700; font-size: 13px; cursor: pointer;
    box-shadow: 0 4px 15px rgba(139, 0, 0, 0.3); 
    transition: 0.2s; letter-spacing: 0.5px;
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-checkout:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(139, 0, 0, 0.4); }

/* --- CARGO CARD --- */
.cargo-card {
    background: #fff; 
    border: 1px solid var(--border); 
    border-radius: 8px;
    padding: 15px; 
    margin-bottom: 12px; 
    position: relative;
    border-left: 5px solid #ddd; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
    transition: 0.2s;
}
.cargo-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.card-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    margin-bottom: 12px; 
    gap: 10px;
}

.input-sku {
    width: 80px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-weight: 700;
    color: #1a1a1a;
    font-size: 11px;
    padding: 8px 10px;
    font-family: monospace;
    background: #ffffff;
    text-transform: uppercase;
}
.input-sku:focus { border-color: var(--accent); outline: none; background: #fff; }

.input-name { 
    flex: 1;
    border: 1px solid var(--border); 
    border-radius: 4px;
    font-weight: 700; 
    color: #1a1a1a; 
    outline: none; 
    font-size: 14px; 
    transition: 0.2s;
    background: #ffffff;
    padding: 8px 10px;
}
.input-name:focus { border-color: var(--accent); background: #fff; }

/* Color Picker */
.color-picker-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.color-picker {
    width: 32px;
    height: 32px;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    overflow: hidden;
}
.color-picker::-webkit-color-swatch-wrapper { padding: 0; }
.color-picker::-webkit-color-swatch { border: none; border-radius: 4px; }

.btn-remove { 
    color: #ef4444; 
    background: #fee2e2; 
    border: none; 
    cursor: pointer; 
    font-size: 16px; 
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.2s;
}
.btn-remove:hover { background: #ef4444; color: white; }

/* Input Grid */
.grid-inputs { 
    display: grid; 
    grid-template-columns: repeat(3, 1fr); 
    gap: 8px; 
    margin-bottom: 10px; 
}

.grid-inputs.extended {
    grid-template-columns: repeat(4, 1fr);
}

.supplier-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 10px;
}

.supplier-row input {
    font-size: 12px;
}

.input-group label { 
    display: block; 
    font-size: 10px; 
    color: #64748b; 
    margin-bottom: 4px; 
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.input-group input { 
    width: 100%; 
    padding: 8px; 
    border: 1px solid var(--border); 
    border-radius: 6px; 
    font-size: 13px; 
    font-family: monospace; 
    color: #333;
    text-align: center;
}
.input-group input:focus { border-color: var(--accent); outline: none; }

/* Pallet Option */
.pallet-option { 
    display: flex; 
    align-items: center; 
    gap: 10px; 
    margin-top: 10px; 
    padding: 10px 12px; 
    background: linear-gradient(135deg, #e8f5f5 0%, #d0eded 100%);
    border-radius: 6px; 
    border: 1px solid #b2dfdb;
}
.pallet-option label { 
    font-size: 12px; 
    color: #0d7377; 
    font-weight: 600; 
    cursor: pointer;
    flex: 1;
}
.pallet-option input { 
    cursor: pointer; 
    width: 18px; 
    height: 18px; 
    accent-color: var(--accent); 
}

.pallet-option.active {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    border-color: #86efac;
}
.pallet-option.active label { color: #166534; }

/* --- VIEWPORT --- */
.viewport { flex: 1; position: relative; background: linear-gradient(180deg, #e2e8f0 0%, #cbd5e1 100%); }
#canvas-container { width: 100%; height: 100%; }

/* --- TOOLTIP --- */
.tooltip {
    position: absolute; 
    pointer-events: none;
    background: rgba(15, 23, 42, 0.95); 
    backdrop-filter: blur(8px);
    color: white; 
    border-radius: 10px;
    font-size: 12px; 
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    z-index: 100; 
    border: 1px solid rgba(255,255,255,0.1);
    min-width: 200px;
    overflow: hidden;
}
.tooltip.hidden { display: none; }

.tt-header {
    padding: 10px 14px;
    background: rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.tt-header strong { font-size: 13px; }

.tt-badge {
    font-size: 9px;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
}

.tt-body { padding: 10px 14px; }
.tt-row { 
    margin-bottom: 6px; 
    display: flex; 
    justify-content: space-between; 
    gap: 15px; 
}
.tt-row:last-child { margin-bottom: 0; }
.tt-row span { color: rgba(255,255,255,0.6); }
.tt-row b { font-family: monospace; }

.tt-footer {
    padding: 8px 14px;
    background: var(--success);
    font-weight: 600;
    text-align: center;
    font-size: 11px;
}

/* --- OVERLAY CONTROLS --- */
.overlay-top {
    position: absolute; 
    top: 20px; 
    left: 50%; 
    transform: translateX(-50%);
    background: #fff; 
    padding: 6px; 
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15); 
    display: flex; 
    gap: 6px;
    align-items: center;
}

.view-divider {
    width: 1px;
    height: 28px;
    background: #e2e8f0;
    margin: 0 4px;
}

.view-controls { display: flex; gap: 4px; }

.view-controls button {
    border: none; 
    background: transparent; 
    padding: 8px 14px;
    border-radius: 8px; 
    cursor: pointer; 
    font-weight: 600; 
    color: #64748b; 
    font-size: 12px;
    transition: 0.2s;
    white-space: nowrap;
}
.view-controls button:hover { background: #f1f5f9; color: #334155; }
.view-controls button.active { background: var(--accent); color: white; }

/* --- STATS BAR --- */
.stats-bar {
    position: absolute; 
    bottom: 24px; 
    left: 50%; 
    transform: translateX(-50%);
    background: #fff; 
    padding: 12px 20px; 
    border-radius: 14px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15); 
    display: flex; 
    align-items: center; 
    gap: 24px;
}

.stat-box { 
    display: flex; 
    flex-direction: column; 
    min-width: 60px;
    text-align: center;
}
.stat-label { 
    font-size: 9px; 
    text-transform: uppercase; 
    color: #94a3b8; 
    font-weight: 800; 
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}
.stat-value { 
    font-size: 18px; 
    font-weight: 800; 
    color: var(--accent); 
}

.nav-controls { 
    display: flex; 
    align-items: center; 
    gap: 12px;
    padding-left: 20px;
    border-left: 1px solid #e2e8f0;
}

.divider { display: none; }

.nav-btn {
    width: 36px; 
    height: 36px; 
    border-radius: 8px; 
    border: 1px solid var(--border);
    background: #fff; 
    cursor: pointer; 
    display: flex; 
    align-items: center; 
    justify-content: center;
    font-size: 14px; 
    transition: 0.2s;
    color: #64748b;
}
.nav-btn:hover { 
    border-color: var(--accent); 
    color: var(--accent); 
    background: #e8f5f5; 
}

/* --- DOOR INDICATOR --- */
.door-indicator {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(39, 174, 96, 0.9);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 12px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

/* --- DIMENSION LEGEND --- */
.dimension-legend {
    position: absolute;
    top: 80px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    padding: 12px 16px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    font-size: 11px;
    min-width: 160px;
}

.legend-title {
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #64748b;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid #e2e8f0;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 5px;
    color: #374151;
}

.legend-color {
    width: 16px;
    height: 10px;
    border-radius: 2px;
}

.legend-note {
    font-size: 9px;
    color: #94a3b8;
    margin-top: 8px;
    padding-top: 6px;
    border-top: 1px solid #e2e8f0;
    font-style: italic;
}

/* --- RESPONSIVE --- */
@media (max-width: 1200px) {
    .sidebar { width: 360px; }
    .overlay-top { flex-wrap: wrap; justify-content: center; }
}