/* === Variables === */
:root {
    --bg-dark: #0a0e14;
    --glass: rgba(15, 23, 35, 0.72);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-hover: rgba(25, 35, 52, 0.85);
    --bg-input: rgba(0, 0, 0, 0.35);
    --accent: #c9953c;
    --accent-light: #e0b85c;
    --accent-dim: rgba(201, 149, 60, 0.18);
    --accent-glow: rgba(201, 149, 60, 0.25);
    --text-primary: #e2e8f0;
    --text-secondary: #8899aa;
    --text-dim: #556677;
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    --radius: 10px;
    --radius-sm: 6px;
    --blur: 20px;
}

/* === Reset === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-dark);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* === Layout === */
#app {
    height: 100vh;
    width: 100vw;
    position: relative;
}

.main-content {
    width: 100%;
    height: 100%;
    position: relative;
}

#map {
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* === Floating Toolbar (Glassmorphism) === */
.toolbar {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px;
    background: var(--glass);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    max-width: calc(100vw - 24px);
    overflow-x: auto;
    scrollbar-width: none;
}
.toolbar::-webkit-scrollbar {
    display: none;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.toolbar-sep {
    width: 1px;
    height: 26px;
    background: var(--glass-border);
    margin: 0 4px;
    flex-shrink: 0;
}

/* === Select Dropdowns === */
.tool-select {
    height: 34px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0 10px 0 8px;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    max-width: 220px;
    min-width: 90px;
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238899aa'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 24px;
}
.tool-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}
.tool-select option,
.tool-select optgroup {
    background: #1a2535;
    color: var(--text-primary);
}

.tool-year {
    min-width: 70px;
    max-width: 90px;
}

/* === Year Loading === */
.year-loading {
    font-size: 11px;
    color: var(--accent-light);
    letter-spacing: 2px;
    animation: pulse 1s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* === Toggle Pills === */
.pill {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
    flex-shrink: 0;
}
.pill input {
    display: none;
}
.pill span {
    display: inline-block;
    padding: 7px 14px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    border-radius: 20px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}
.pill:hover span {
    border-color: var(--text-dim);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}
.pill input:checked + span {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent-light);
    box-shadow: 0 0 12px var(--accent-glow);
}

/* === Opacity Slider === */
.tool-label {
    color: var(--text-dim);
    font-size: 10px;
    flex-shrink: 0;
}

.tool-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 70px;
    height: 3px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 2px;
    outline: none;
    flex-shrink: 0;
    cursor: pointer;
}
.tool-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid rgba(0, 0, 0, 0.3);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    transition: transform 0.15s;
}
.tool-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}
.tool-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid rgba(0, 0, 0, 0.3);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* === Compare Swipe Slider === */
.compare-slider {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 0;
    z-index: 999;
    pointer-events: none;
}

.compare-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 3px;
    background: var(--accent);
    transform: translateX(-50%);
    box-shadow: 0 0 12px rgba(201, 149, 60, 0.4);
}

.compare-handle {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
    width: 38px;
    height: 38px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--accent-light);
    cursor: ew-resize;
    pointer-events: all;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.5), 0 0 16px var(--accent-glow);
    user-select: none;
    z-index: 1000;
    transition: transform 0.15s, background 0.15s;
}
.compare-handle:hover {
    background: var(--accent-dim);
    transform: translate(-50%, -50%) scale(1.1);
}

.compare-label {
    position: absolute;
    top: 50%;
    transform: translateY(calc(-50% + 30px));
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    pointer-events: none;
    white-space: nowrap;
}
.compare-label-left {
    right: 12px;
}
.compare-label-right {
    left: 12px;
}

/* === Tile Status Overlay === */
.tile-status {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass);
    backdrop-filter: blur(var(--blur));
    -webkit-backdrop-filter: blur(var(--blur));
    border: 1px solid var(--accent-dim);
    color: var(--accent-light);
    padding: 8px 18px;
    border-radius: var(--radius);
    z-index: 1000;
    font-size: 12px;
    pointer-events: none;
    white-space: nowrap;
}

/* === Source Info (bottom-left) === */
.source-info {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    z-index: 900;
    font-size: 10px;
    max-width: 350px;
    pointer-events: none;
}

/* === Map Controls (Leaflet overrides) === */
.leaflet-control-attribution {
    background: var(--glass) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    color: var(--text-dim) !important;
    font-size: 9px !important;
    border-radius: 6px 0 0 0 !important;
}
.leaflet-control-attribution a {
    color: var(--text-secondary) !important;
}

.leaflet-control-zoom {
    border: none !important;
    overflow: hidden;
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow) !important;
}
.leaflet-control-zoom a {
    background: var(--glass) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    color: var(--text-primary) !important;
    border-color: var(--glass-border) !important;
    width: 34px !important;
    height: 34px !important;
    line-height: 34px !important;
    font-size: 16px !important;
}
.leaflet-control-zoom a:hover {
    background: var(--glass-hover) !important;
    color: var(--accent-light) !important;
}

/* === Responsive === */
@media (max-width: 768px) {
    .toolbar {
        top: 8px;
        gap: 3px;
        padding: 5px 8px;
        border-radius: 12px;
    }
    .tool-select {
        min-width: 70px;
        font-size: 11px;
        height: 28px;
    }
    .toolbar-sep {
        display: none;
    }
    .pill span {
        padding: 4px 8px;
        font-size: 10px;
    }
    .tool-slider {
        width: 50px;
    }
}

@media (max-width: 480px) {
    .toolbar {
        top: 6px;
        left: 6px;
        right: 6px;
        transform: none;
        max-width: none;
    }
    .tool-label {
        display: none;
    }
}