/* ========================================
   Overlay & Dialog
   ======================================== */
.picker-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    z-index: 1100;
}

.picker-dialog {
    background: #1c1c1e;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    width: 100%;
    max-width: 1100px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.picker-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-bottom: 0.5px solid rgba(255, 255, 255, 0.1);
}

.picker-header h2 {
    margin: 0;
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
}

.picker-subtitle {
    margin: 0.2rem 0 0;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
}

.picker-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
}

.picker-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.picker-body {
    padding: 1rem 1.25rem;
    overflow-y: auto;
    flex: 1;
}

.picker-loading {
    text-align: center;
    padding: 2rem;
    color: rgba(255, 255, 255, 0.6);
    font-family: 'Rajdhani', sans-serif;
}

.picker-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.85rem 1.25rem;
    border-top: 0.5px solid rgba(255, 255, 255, 0.1);
}

.picker-selection {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Rajdhani', sans-serif;
}

.picker-selection-label {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
}

.picker-selection-hint {
    color: rgba(255, 255, 255, 0.45);
}

.picker-actions {
    display: flex;
    gap: 0.5rem;
}

/* ========================================
   Rack Grid (mirrors TireStorage rack view)
   ======================================== */
.rack-view {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
}

@media (min-width: 1024px) {
    .rack-view {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }
}

.building-section {
    background: rgba(28, 28, 30, 0.8);
    border: 0.5px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    width: 100%;
}

.building-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 1.05rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 0.75rem 0;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.rack-row {
    margin-bottom: 0.75rem;
}

.row-title {
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin: 0 0 0.3rem 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rack-sides {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 767.98px) {
    .rack-sides {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

.rack-side {
    min-width: 0;
}

.side-label {
    display: block;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 0.2rem;
}

.rack-level {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0.2rem 0;
}

.level-label {
    width: 2.6rem;
    flex-shrink: 0;
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.4);
}

.rack-cells {
    display: grid;
    grid-template-columns: repeat(9, 1fr);
    gap: 4px;
    flex: 1;
    min-width: 0;
}

.rack-cell {
    width: 100%;
    min-height: 2rem;
    border-radius: 6px;
    border: 1px solid transparent;
    font-family: 'Rajdhani', sans-serif;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    padding: 0;
}

.rack-cell:not(:disabled):hover {
    transform: scale(1.1);
}

.rack-cell.free {
    background: rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.4);
    color: #4ade80;
}

.rack-cell.freeing {
    background: rgba(96, 165, 250, 0.18);
    border-color: rgba(96, 165, 250, 0.5);
    color: #93c5fd;
}

.rack-cell.occupied {
    background: rgba(220, 38, 38, 0.2);
    border-color: rgba(220, 38, 38, 0.45);
    color: #f87171;
    cursor: not-allowed;
}

.rack-cell.blocked {
    background: rgba(148, 163, 184, 0.15);
    border-color: rgba(148, 163, 184, 0.3);
    color: rgba(255, 255, 255, 0.35);
    cursor: not-allowed;
}

.rack-cell.missing {
    background: transparent;
    border: 1px dashed rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.2);
    cursor: default;
}

.rack-cell.selected {
    outline: 2px solid #22c55e;
    outline-offset: 1px;
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.25);
}

/* ========================================
   Legend
   ======================================== */
.rack-legend {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    font-family: 'Rajdhani', sans-serif;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.legend-swatch {
    width: 0.9rem;
    height: 0.9rem;
    border-radius: 4px;
    display: inline-block;
}

.legend-swatch.free {
    background: rgba(34, 197, 94, 0.4);
}

.legend-swatch.freeing {
    background: rgba(96, 165, 250, 0.5);
}

.legend-swatch.occupied {
    background: rgba(220, 38, 38, 0.45);
}

.legend-swatch.blocked {
    background: rgba(148, 163, 184, 0.35);
}