/* ============================================
   SUPPLY CHAIN PATH & ROUTES
   Supply chain visualization, route lines, ship trails
   ============================================ */

/* Supply Chain Path */
.supply-chain-path {
    padding: var(--space-3);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    margin-top: var(--space-2);
}

.supply-chain-path__nodes {
    display: flex;
    align-items: center;
    overflow-x: auto;
    gap: var(--space-1);
    padding-bottom: var(--space-2);
}

.supply-chain-path__nodes::-webkit-scrollbar {
    height: 4px;
}

.supply-chain-path__nodes::-webkit-scrollbar-track {
    background: var(--color-bg);
    border-radius: var(--radius-sm);
}

.supply-chain-path__nodes::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-sm);
}

/* Supply Chain Node */
.supply-chain-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
    padding: var(--space-2);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--duration-fast);
    flex-shrink: 0;
}

.supply-chain-node:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.supply-chain-node--current {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(220, 38, 26, 0.3);
}

.supply-chain-node__icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.supply-chain-node__name {
    font-size: 10px;
    font-weight: 600;
    color: var(--color-text);
    max-width: 70px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.supply-chain-node__type {
    font-size: 9px;
    color: var(--color-text-muted);
}

/* Supply Chain Arrow */
.supply-chain-arrow {
    color: var(--color-text-muted);
    font-size: 16px;
    flex-shrink: 0;
}

/* Route Lines */
.supply-chain-route {
    stroke: var(--color-accent);
    stroke-width: 2;
    stroke-dasharray: 5, 5;
    fill: none;
    opacity: 0.7;
}

.supply-chain-route--highlighted {
    stroke-width: 3;
    opacity: 1;
}

/* Ship Trails */
.ship-trail {
    stroke: var(--color-info);
    stroke-width: 2;
    fill: none;
    opacity: 0.5;
}

.ship-trail--active {
    stroke: var(--color-accent);
    stroke-width: 3;
    opacity: 0.8;
}

/* Measurement Tool */
.measurement-tool {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: var(--z-overlay);
    box-shadow: var(--shadow-lg);
}

.measurement-tool__display {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.measurement-tool__icon {
    font-size: 24px;
}

.measurement-tool__distance {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-accent);
}

.measurement-tool__bearing {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.measurement-tool__close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.measurement-tool__close:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.measurement-tool__actions {
    display: flex;
    gap: var(--space-2);
}

/* Measurement Point Marker */
.measurement-point {
    width: 12px;
    height: 12px;
    background: var(--color-accent);
    border: 2px solid white;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Heatmap Layer */
.heatmap-layer {
    pointer-events: none;
}