/**
 * Graph panel styles for Windsurfer Tracker WebUI
 * Generic styles for time-series graph panels with resize handles
 */

/* Base graph panel - positioned at bottom, hidden by default */
.graph-panel {
    position: absolute;
    bottom: 80px;
    left: 0;
    right: 300px;
    height: 150px;
    background: #1a252f;
    border-top: 1px solid #34495e;
    display: none;
}

.graph-panel.visible {
    display: block;
}

/* Resize handle at top of panel */
.graph-resize {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
    cursor: ns-resize;
    background: linear-gradient(to bottom, #34495e, transparent);
    z-index: 10;
}

.graph-resize:hover,
.graph-resize.dragging {
    background: linear-gradient(to bottom, var(--graph-color, #3498db), transparent);
}

.graph-resize::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: #5a6a7a;
    border-radius: 2px;
}

.graph-resize:hover::after,
.graph-resize.dragging::after {
    background: #7a8a9a;
}

/* Container for graph content */
.graph-container {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 10px 50px 25px 50px;
}

/* Canvas element */
.graph-canvas {
    width: 100%;
    height: 100%;
    background: #2c3e50;
    border-radius: 4px;
}

/* Graph title */
.graph-title {
    position: absolute;
    top: 5px;
    left: 60px;
    color: var(--graph-color, #bdc3c7);
    font-size: 12px;
    font-weight: bold;
}

/* Y-axis labels (left side) */
.graph-y-axis {
    position: absolute;
    left: 10px;
    top: 10px;
    bottom: 25px;
    width: 35px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-end;
    color: #7f8c8d;
    font-size: 11px;
}

/* X-axis labels (bottom) */
.graph-x-axis {
    position: absolute;
    bottom: 5px;
    left: 50px;
    right: 50px;
    display: flex;
    justify-content: space-between;
    color: #7f8c8d;
    font-size: 11px;
}

/* Range preview overlays - shown while dragging time sliders */
.graph-range-overlay {
    position: absolute;
    top: 10px;
    bottom: 25px;
    background: rgba(0, 0, 0, 0.5);
    pointer-events: none;
    z-index: 5;
    display: none;
}

.graph-range-overlay.visible {
    display: block;
}

.graph-range-overlay.left {
    left: 50px;
    border-radius: 4px 0 0 4px;
}

.graph-range-overlay.right {
    right: 50px;
    border-radius: 0 4px 4px 0;
}

/* Graph type color themes using CSS custom properties */
.graph-panel[data-type="speed"] { --graph-color: #3498db; }
.graph-panel[data-type="battery"] { --graph-color: #f39c12; }
.graph-panel[data-type="signal"] { --graph-color: #27ae60; }
.graph-panel[data-type="latency"] { --graph-color: #e67e22; }
.graph-panel[data-type="heartrate"] { --graph-color: #e91e63; }
.graph-panel[data-type="accuracy"] { --graph-color: #9b59b6; }
.graph-panel[data-type="distance"] { --graph-color: #1abc9c; }

/* Mobile responsive adjustments */
@media (max-width: 768px) {
    .graph-panel {
        right: 0;
    }

    .graph-title {
        left: 45px;
        font-size: 11px;
    }

    .graph-y-axis {
        font-size: 9px;
        width: 30px;
    }

    .graph-x-axis {
        font-size: 9px;
        left: 35px;
        right: 35px;
    }

    .graph-container {
        padding: 10px 35px 25px 35px;
    }

    .graph-range-overlay.left {
        left: 35px;
    }

    .graph-range-overlay.right {
        right: 35px;
    }
}