* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    height: 100vh;
    overflow: hidden;
}

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

.sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: white;
    box-shadow: -2px 0 10px rgba(0,0,0,0.1);
    transition: right 0.3s ease;
    z-index: 1000;
    overflow-y: auto;
    padding: 20px;
}

.sidebar.open {
    right: 0;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e0e0e0;
}

.sidebar-header h2 {
    color: #2c3e50;
    font-size: 24px;
}

.close-btn {
    background: #e74c3c;
    color: white;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.close-btn:hover {
    background: #c0392b;
}

.info-section {
    margin-bottom: 25px;
}

.info-section h3 {
    color: #34495e;
    font-size: 16px;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    margin-bottom: 8px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #3498db;
}

.info-label {
    font-weight: 600;
    color: #555;
}

.info-value {
    color: #2c3e50;
    text-align: right;
    max-width: 60%;
    word-wrap: break-word;
}

.sidebar-attribution {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #e0e0e0;
    text-align: center;
}

.sidebar-attribution-title {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #7f8c8d;
    margin-bottom: 4px;
    line-height: 1.35;
}

.sidebar-attribution-sub {
    font-size: 11px;
    color: #95a5a6;
    margin-bottom: 14px;
    line-height: 1.4;
}

/*
 * Partner marks use background-image on fixed-ratio tiles (not <img>),
 * so huge source files never blow up layout — BYU and CIROH always share one grid row.
 */
.sidebar-attribution-logos.partners-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    max-width: 150px;
    margin: 0 auto;
}

.partners-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    width: 100%;
}

.partners-cell {
    aspect-ratio: 1 / 1;
    width: 100%;
    min-height: 0;
    background-color: transparent;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.partners-wide {
    width: 100%;
    height: 42px;
    background-color: transparent;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.huc8-code {
    font-size: 28px;
    font-weight: bold;
    color: #2980b9;
    text-align: center;
    padding: 15px;
    background: #ecf0f1;
    border-radius: 8px;
    margin-bottom: 20px;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #7f8c8d;
}

.loading-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.no-selection {
    text-align: center;
    padding: 60px 20px;
    color: #95a5a6;
}

.no-selection svg {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    opacity: 0.3;
}

/* Custom popup styles */
.leaflet-popup-content-wrapper {
    border-radius: 8px;
}

.leaflet-popup-content {
    margin: 15px;
}

.popup-title {
    font-weight: bold;
    font-size: 16px;
    color: #2980b9;
    margin-bottom: 8px;
}

.popup-info {
    font-size: 14px;
    color: #555;
    margin: 4px 0;
}

.popup-click {
    margin-top: 10px;
    font-size: 12px;
    color: #7f8c8d;
    font-style: italic;
}

/*
 * Smooth interpolation when Leaflet scales the preview PNG (so flood edges look softer).
 * Pane class: createPane('floodOverlayPane') → leaflet-floodOverlayPane-pane.
 */
.leaflet-pane.leaflet-floodOverlayPane-pane img,
img.flood-raster-crisp.leaflet-image-layer {
    image-rendering: auto;
    -ms-interpolation-mode: bicubic;
    opacity: 1 !important;
    transform: translateZ(0);
}

.flood-streamflow-marker {
    background: transparent !important;
    border: none !important;
}

/* Labels must stack above the flood raster (pane z-index set in JS). */
.leaflet-floodLabelsPane-pane {
    overflow: visible !important;
    pointer-events: none !important;
}

.flood-streamflow-marker-inner {
    position: relative;
    left: 0;
    top: 0;
    display: inline-block;
    box-sizing: border-box;
    white-space: nowrap;
    padding: 7px 12px;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: #0d1b2a;
    background: #ffffff;
    background-clip: padding-box;
    border: 2px solid #0d47a1;
    border-radius: 8px;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.9) inset,
        0 2px 10px rgba(0, 0, 0, 0.35),
        0 1px 3px rgba(0, 0, 0, 0.2);
    pointer-events: none;
}

.leaflet-floodLabelsPane-pane .leaflet-marker-icon {
    margin-left: 0 !important;
    margin-top: 0 !important;
    overflow: visible !important;
}

#flood-legend {
    pointer-events: auto;
}

.flood-legend-toggle-wrap {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #e8eaed;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    pointer-events: auto;
}

.flood-legend-toggle-wrap .flood-toggle-label {
    font-size: 12px;
    color: #444;
    line-height: 1.3;
    flex: 1;
    min-width: 0;
}

.flood-toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 26px;
    flex-shrink: 0;
}

.flood-toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.flood-toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #cfd8dc;
    border-radius: 26px;
    transition: background 0.2s;
}

.flood-toggle-slider::before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
    transition: transform 0.2s;
}

.flood-toggle-switch input:checked + .flood-toggle-slider {
    background: #2980b9;
}

.flood-toggle-switch input:checked + .flood-toggle-slider::before {
    transform: translateX(18px);
}

.flood-toggle-switch input:focus-visible + .flood-toggle-slider {
    outline: 2px solid #3498db;
    outline-offset: 2px;
}

/* Full-screen progress while NWM flood map is generating */
.flood-generate-overlay {
    position: fixed;
    inset: 0;
    z-index: 2500;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(2px);
}

.flood-generate-overlay.flood-generate-overlay--visible {
    display: flex;
}

.flood-generate-modal {
    position: relative;
    background: #fff;
    padding: 28px 32px 32px;
    border-radius: 14px;
    max-width: 440px;
    width: 92%;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.22);
    text-align: center;
}

.flood-generate-modal-title {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 6px;
}

.flood-generate-modal-sub {
    font-size: 13px;
    color: #64748b;
    margin-bottom: 18px;
}

.flood-generate-modal-msg {
    font-size: 15px;
    font-weight: 600;
    color: #0f172a;
    line-height: 1.5;
    margin-top: 16px;
    min-height: 2.8em;
}

.flood-generate-spinner {
    width: 44px;
    height: 44px;
    margin: 8px auto 0;
}

.flood-generate-cancel-text {
    margin-top: 18px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    color: #c0392b;
    background: #fff;
    border: 2px solid rgba(192, 57, 43, 0.45);
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.flood-generate-cancel-text:hover {
    background: #fef2f2;
    border-color: #c0392b;
    color: #a93226;
}

/* Celebration-style success after flood map generation */
.flood-success-overlay {
    position: fixed;
    inset: 0;
    z-index: 2600;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(4px);
}

.flood-success-overlay.flood-success-overlay--visible {
    display: flex;
    animation: floodSuccessFadeIn 0.35s ease-out;
}

@keyframes floodSuccessFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes floodSuccessPop {
    0% { opacity: 0; transform: scale(0.92) translateY(12px); }
    70% { opacity: 1; transform: scale(1.02) translateY(0); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.flood-success-card {
    position: relative;
    max-width: 420px;
    width: 100%;
    padding: 32px 28px 28px;
    border-radius: 20px;
    text-align: center;
    background: linear-gradient(145deg, #ffffff 0%, #f0f9ff 45%, #e0f2fe 100%);
    border: 1px solid rgba(14, 165, 233, 0.35);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.8) inset,
        0 24px 56px rgba(2, 132, 199, 0.18),
        0 8px 24px rgba(15, 23, 42, 0.12);
    animation: floodSuccessPop 0.45s cubic-bezier(0.34, 1.3, 0.64, 1) both;
}

.flood-success-close {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 10;
    width: 40px;
    height: 40px;
    border: 2px solid rgba(15, 23, 42, 0.18);
    border-radius: 50%;
    background: #fff;
    color: #1e293b;
    font-size: 26px;
    font-weight: 300;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.flood-success-close:hover {
    background: #f1f5f9;
    color: #0f172a;
    border-color: rgba(14, 165, 233, 0.45);
}

.flood-success-close:active {
    transform: scale(0.94);
}

.flood-success-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: conic-gradient(from 200deg, #0ea5e9, #38bdf8, #7dd3fc, #0ea5e9);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.35);
}

.flood-success-icon-inner {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
}

.flood-success-heading {
    font-size: 22px;
    font-weight: 800;
    color: #0c4a6e;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    line-height: 1.25;
}

.flood-success-tagline {
    font-size: 14px;
    color: #0369a1;
    font-weight: 600;
    margin-bottom: 14px;
}

.flood-success-detail {
    font-size: 13px;
    color: #475569;
    line-height: 1.55;
    text-align: left;
    background: rgba(255, 255, 255, 0.75);
    border-radius: 12px;
    padding: 14px 16px;
    margin-bottom: 20px;
    border: 1px solid rgba(148, 163, 184, 0.35);
}

.flood-success-detail strong {
    color: #1e293b;
}

.flood-success-ok {
    width: 100%;
    max-width: 220px;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    background: linear-gradient(135deg, #0284c7 0%, #0ea5e9 50%, #38bdf8 100%);
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.45);
    transition: transform 0.15s, box-shadow 0.2s;
}

.flood-success-ok:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(2, 132, 199, 0.5);
}

.flood-success-ok:active {
    transform: translateY(0);
}