/* Glass observatory: shared tokens keep admin configuration authoritative. */
body.glass-interface {
    --line: color-mix(in srgb, var(--teal) 22%, transparent);
    background:
        radial-gradient(
            ellipse at 78% 2%,
            color-mix(in srgb, var(--teal) 15%, transparent),
            transparent 46%
        ),
        radial-gradient(ellipse at 18% 55%, #7559eb13, transparent 40%),
        var(--bg);
    background-attachment: fixed;
    color: var(--ink);
}
.glass-interface .sidebar {
    background: color-mix(in srgb, var(--navy) 76%, transparent);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-right: 1px solid var(--line);
}
.glass-interface .topbar {
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--line);
}
.glass-interface .nav-item.active {
    background: color-mix(in srgb, var(--teal) 13%, transparent);
    box-shadow:
        inset 2px 0 var(--teal),
        0 0 18px color-mix(in srgb, var(--teal) 6%, transparent);
    color: var(--teal);
}
.glass-interface .card,
.glass-interface .river-observatory,
.glass-interface .analysis-trend,
.glass-interface .fleet-comparison,
.glass-interface .data-context,
.glass-interface .toolbar,
.glass-interface .version-card,
.glass-interface .footer-actions {
    background: linear-gradient(
        125deg,
        color-mix(in srgb, var(--white) 78%, transparent),
        color-mix(in srgb, var(--white) 48%, transparent)
    );
    border: 1px solid var(--line);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    box-shadow:
        inset 0 1px 0 #ffffff08,
        0 16px 40px #00000016;
    border-radius: var(--card-radius, 20px);
}
.glass-interface .river-observatory {
    overflow: visible;
    gap: 0;
}
.glass-interface .river-observatory-map {
    border-radius: var(--card-radius);
    overflow: hidden;
}
.glass-interface .station-instrument {
    background: linear-gradient(
        165deg,
        color-mix(in srgb, var(--instrument-background) 88%, transparent),
        color-mix(in srgb, var(--white) 44%, transparent)
    );
    border-left: 1px solid var(--line);
    border-radius: 0 var(--card-radius) var(--card-radius) 0;
    backdrop-filter: blur(var(--glass-blur));
}
.glass-interface .instrument-readings {
    gap: 9px;
    margin: 15px 0 18px;
}
.glass-interface .instrument-readings .metric {
    padding: 12px 10px;
    min-height: 90px;
    border: 1px solid color-mix(in srgb, var(--teal) 17%, transparent);
    border-radius: 12px;
    background: linear-gradient(125deg, #ffffff07, #ffffff02);
    box-shadow: inset 0 1px 0 #ffffff06;
}
.glass-interface .instrument-readings .metric-value {
    font-size: 26px;
}
.glass-interface .instrument-readings .metric-label {
    color: var(--muted);
}
.glass-interface .data-context {
    padding: 22px;
}
.glass-interface .river-analysis {
    gap: 20px;
}
.glass-interface .analysis-trend,
.glass-interface .fleet-comparison {
    box-shadow:
        inset 0 1px 0 #ffffff08,
        0 15px 40px #00000012;
}
.glass-interface .btn {
    background: var(--teal);
    color: #06212d;
    border-color: var(--teal);
    box-shadow: 0 0 20px color-mix(in srgb, var(--teal) 12%, transparent);
}
.glass-interface .btn.secondary,
.glass-interface .btn.ghost,
.glass-interface .instrument-detail {
    background: #ffffff05;
    color: var(--ink);
    border-color: var(--line);
    box-shadow: none;
}
.glass-interface .btn.secondary:hover,
.glass-interface .btn.ghost:hover {
    background: color-mix(in srgb, var(--teal) 11%, transparent);
}
.glass-interface .form-control {
    background: color-mix(in srgb, var(--bg) 70%, transparent);
    border-color: var(--line);
    color: var(--ink);
}
.glass-interface select option {
    background: var(--bg);
    color: var(--ink);
}
.glass-interface .form-control[readonly] {
    background: #ffffff03;
    color: var(--muted);
}
.glass-interface .modal {
    background: color-mix(in srgb, var(--white) 95%, var(--bg));
    border: 1px solid var(--line);
    box-shadow: 0 25px 100px #0009;
    backdrop-filter: blur(var(--glass-blur));
}
.glass-interface .modal-overlay {
    background: #020916a6;
    backdrop-filter: blur(6px);
}
.glass-interface .map-segment,
.glass-interface .segments {
    background: #00000020;
    border: 1px solid var(--line);
}
.glass-interface .map-segment button.active,
.glass-interface .segments button.active {
    background: color-mix(in srgb, var(--teal) 16%, var(--white));
    color: var(--teal);
}
.glass-interface .map-floating-tools button,
.glass-interface .map-compass {
    background: color-mix(in srgb, var(--white) 85%, transparent);
    backdrop-filter: blur(14px);
    color: var(--ink);
    border-color: var(--line);
}
/* Affect only raster tiles: markers, waterway geometry and labels keep their own colors. */
.glass-interface .leaflet-tile-pane {
    filter: invert(0.92) hue-rotate(180deg) saturate(0.55) brightness(0.8) contrast(0.95);
}
.glass-interface .geographic-map {
    background: #091823;
    box-shadow: inset 0 0 40px #0005;
    border: 1px solid var(--line);
}
.glass-interface .leaflet-control-zoom a,
.glass-interface .leaflet-control-attribution {
    background: var(--white);
    color: var(--ink);
}
.glass-interface .leaflet-control-attribution a {
    color: var(--teal);
}
.glass-interface .leaflet-control-scale-line {
    background: #102838cc;
    color: #d5ebf4;
    border-color: #b9d9e388;
    text-shadow: none;
}
.glass-interface .leaflet-popup-content-wrapper,
.glass-interface .leaflet-popup-tip {
    background: var(--white);
    color: var(--ink);
}
.glass-interface .leaflet-popup-content-wrapper {
    border: 1px solid var(--line);
    box-shadow: 0 12px 36px #0006;
}
.glass-interface .river-station {
    background: #ffffff04;
    border: 1px solid var(--line);
    color: var(--ink);
}
.glass-interface .river-station.active {
    border-color: var(--teal);
    background: color-mix(in srgb, var(--teal) 9%, transparent);
    box-shadow: 0 0 16px color-mix(in srgb, var(--teal) 7%, transparent);
}
.glass-interface .geographic-marker {
    background: var(--white);
    color: var(--point-color);
    border-color: var(--point-color);
    box-shadow:
        0 0 7px var(--point-color),
        0 0 23px color-mix(in srgb, var(--point-color) 35%, transparent);
}
.glass-interface .geographic-marker b {
    background: #0a1b2be8;
    color: #e9f7fc;
    border: 1px solid color-mix(in srgb, var(--point-color) 45%, transparent);
    backdrop-filter: blur(10px);
}
.glass-interface .geographic-marker > span {
    position: relative;
    z-index: 2;
}
.glass-interface .geographic-marker.unconfirmed {
    border-style: dashed;
}
.signal-ring {
    display: none;
    position: absolute;
    inset: -5px;
    border: 1px solid var(--point-color);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    box-shadow: 0 0 12px color-mix(in srgb, var(--point-color) 28%, transparent);
}
.glass-interface.station-pulse-enabled .signal-active .signal-ring {
    display: block;
    animation: station-signal 3s cubic-bezier(0.2, 0.5, 0.4, 1) infinite;
}
.glass-interface.station-pulse-enabled .signal-active .secondary-ring {
    animation-delay: 1.5s;
}
.glass-interface .signal-offline {
    box-shadow: 0 0 8px #8da7b033;
    opacity: 0.8;
}
@keyframes station-signal {
    0% {
        transform: scale(0.7);
        opacity: 0.7;
    }
    80%,
    100% {
        transform: scale(2.2);
        opacity: 0;
    }
}
.glass-interface .action-menu > summary,
.glass-interface .action-menu-panel {
    background: var(--white);
    color: var(--ink);
    border-color: var(--line);
}
.glass-interface .action-menu-panel {
    box-shadow: 0 18px 45px #0006;
}
.glass-interface .action-menu-panel .btn {
    color: var(--ink);
}
.glass-interface .admin-tabs .btn:not(.secondary) {
    background: color-mix(in srgb, var(--teal) 10%, var(--white));
    color: var(--teal);
}
.glass-interface thead th {
    background: color-mix(in srgb, var(--bg) 72%, transparent);
    color: var(--muted);
}
.glass-interface tbody td {
    border-color: var(--line);
}
.glass-interface tbody tr:hover {
    background: #ffffff04;
}
.glass-interface .table-wrap {
    border-color: var(--line);
}
.glass-interface .badge.demo {
    background: #382e1bd9;
    color: #f4cd80;
    border-color: #d4a84745;
}
.glass-interface .instrument-top .badge {
    background: var(--bg) !important;
}
.glass-interface .notice.blue {
    background: #163a5555;
    color: var(--ink);
    border-color: #49bfff33;
}
.glass-interface .notice {
    background: #352c2266;
    color: #ead3a9;
    border-color: #b98d453d;
}
.glass-interface .empty,
.glass-interface .error-panel,
.glass-interface .file-zone {
    background: var(--white);
    color: var(--muted);
}
.glass-interface .muted,
.glass-interface .subtitle,
.glass-interface .toolbar-info,
.glass-interface .note {
    color: var(--muted);
}
.glass-interface .avatar {
    background: #ffffff08;
    color: var(--teal);
}
.glass-interface .river-workspace.expanded {
    background: var(--bg);
    border-color: var(--line);
}
@media (max-width: 950px) {
    .glass-interface .station-instrument {
        border-left: 0;
        border-top: 1px solid var(--line);
        border-radius: 0 0 var(--card-radius) var(--card-radius);
    }
    .glass-interface .river-observatory {
        overflow: hidden;
    }
}
@media (max-width: 740px) {
    .glass-interface .instrument-readings .metric {
        padding: 12px;
        min-height: 90px;
    }
    .glass-interface .data-context {
        padding: 18px;
    }
    .glass-interface .topbar {
        backdrop-filter: blur(12px);
    }
}
@media (prefers-reduced-motion: reduce) {
    .glass-interface .signal-ring {
        animation: none !important;
        display: none !important;
    }
}
@supports not (backdrop-filter: blur(1px)) {
    .glass-interface .card,
    .glass-interface .river-observatory,
    .glass-interface .station-instrument,
    .glass-interface .analysis-trend,
    .glass-interface .fleet-comparison {
        background: var(--white);
    }
}
@media print {
    body.glass-interface {
        background: white;
        color: black;
    }
    .glass-interface .card,
    .glass-interface .station-instrument,
    .glass-interface .river-observatory,
    .glass-interface .analysis-trend,
    .glass-interface .fleet-comparison {
        background: white;
        color: black;
        backdrop-filter: none;
        box-shadow: none;
    }
    .signal-ring {
        display: none !important;
    }
    .glass-interface .leaflet-tile-pane {
        filter: none;
    }
}
.signal-help {
    font-size: 10px;
    color: var(--muted);
    margin: 0 0 12px;
    line-height: 1.7;
}
.glass-interface .geographic-warning {
    color: #efc36d;
    background: #43382355;
}
.glass-interface .map-disclaimer {
    color: var(--muted);
}