:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --background-primary: #0f172a;
    --background-secondary: #1e293b;
    --background-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --border-color: #475569;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --scale-factor: 0.75;
    --font-family: 'Courier New', 'Monaco', 'Lucida Console', monospace;
    --sidebar-width: calc(280px * var(--scale-factor));
    --header-height: 60px;
    --alerts-bar-height: 20vh;
    --alerts-bar-collapsed-height: 40px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    image-rendering: pixelated;
    image-rendering: -moz-crisp-edges;
    image-rendering: crisp-edges;
}

body {
    font-family: var(--font-family);
    background: var(--background-primary);
    color: var(--text-primary);
    overflow: hidden;
    font-size: calc(14px * var(--scale-factor));
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.header {
    background: var(--background-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.noaa-logo {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    font-size: calc(1.25rem * var(--scale-factor));
}

.subtitle {
    color: var(--text-secondary);
    font-weight: 400;
    font-size: calc(1.25rem * var(--scale-factor));
}

.btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    border: none;
    border-radius: 0.375rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: calc(0.875rem * var(--scale-factor));
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--background-secondary) 0%, rgba(30, 41, 59, 0.95) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(71, 85, 105, 0.5);
    box-shadow: var(--shadow-xl);
    overflow-y: auto;
    position: absolute;
    top: 0;
    left: calc(-1 * var(--sidebar-width));
    height: calc(100vh - var(--header-height) - var(--alerts-bar-collapsed-height));
    z-index: 1000;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.sidebar::-webkit-scrollbar {
    display: none;
}

.sidebar.active {
    left: 0;
}

.sidebar-toggle {
    display: none;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-toggle:hover {
    background: linear-gradient(135deg, var(--background-tertiary), var(--border-color));
    transform: translateY(-50%) scale(1.05);
}

.sidebar-toggle::after {
    content: '›';
    font-size: 1.2rem;
    line-height: 1;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.sidebar.active .sidebar-toggle::after {
    content: '‹';
}

/* Ensure toggle is always visible when sidebar is hidden */
.sidebar:not(.active) .sidebar-toggle {
    right: -20px;
    opacity: 1;
    visibility: visible;
}

/* Ensure toggle is visible on mobile */
@media (max-width: 768px) {
    .sidebar-toggle {
        right: -20px;
        width: 20px;
        height: 60px;
        background: var(--background-secondary);
        border: 1px solid var(--border-color);
        border-left: none;
        border-radius: 0 4px 4px 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

.weather-card, .layers-panel, .legend {
    background: rgba(51, 65, 85, 0.5);
    border: 1px solid rgba(71, 85, 105, 0.3);
    backdrop-filter: blur(5px);
    transition: all 0.2s ease;
    border-radius: 0.5rem;
    padding: 1.125rem;
    margin-bottom: 1.125rem;
}

.weather-card:hover, .layers-panel:hover, .legend:hover {
    background: rgba(51, 65, 85, 0.7);
    border-color: rgba(71, 85, 105, 0.5);
    transform: translateY(-1px);
}

.weather-card h3, .layers-panel h3, .legend h3 {
    color: var(--text-primary);
    font-size: calc(1rem * var(--scale-factor));
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.weather-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.weather-main {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.weather-icon {
    font-size: calc(2rem * var(--scale-factor));
}

.weather-temp {
    font-size: calc(1.5rem * var(--scale-factor));
    font-weight: 600;
}

.weather-desc {
    color: var(--text-secondary);
}

.weather-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.weather-detail {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.weather-detail-label {
    color: var(--text-muted);
    font-size: calc(0.75rem * var(--scale-factor));
    font-weight: 300;
}

.weather-detail-value {
    color: var(--text-primary);
    font-weight: 600;
}

.layer-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.layer-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.375rem;
    margin: 0.125rem 0;
    transition: background 0.2s;
}

.layer-item:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.3);
}

.layer-item input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(100, 116, 139, 0.5);
    border-radius: 0.25rem;
    position: relative;
    transition: all 0.2s ease;
}

.layer-item input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 8px rgba(37, 99, 235, 0.4);
}

.checkmark:after {
    content: '';
    position: absolute;
    left: 3px;
    top: 0;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity 0.2s;
}

.layer-item input[type="checkbox"]:checked + .checkmark:after {
    opacity: 1;
}

.layer-name {
    flex: 1;
    color: var(--text-secondary);
    font-size: calc(0.875rem * var(--scale-factor));
    font-weight: 400;
}

.layer-indicator {
    width: 0.625rem;
    height: 0.625rem;
    border-radius: 50%;
}

.radar-indicator { background: #3b82f6; }
.satellite-indicator { background: #8b5cf6; }
.temp-indicator { background: #ef4444; }
.alerts-indicator { background: #f59e0b; }
.counties-indicator { background: #a0aec0; }

.legend-content {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.legend-section {
    margin-bottom: 0.75rem;
}

.legend-section h4 {
    font-size: calc(0.75rem * var(--scale-factor));
    color: var(--text-muted);
    margin-bottom: 0.375rem;
    font-weight: 600;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 0.875rem;
    height: 0.875rem;
    border-radius: 0.125rem;
}

/* Radar colors */
.light-rain { background: #4a90e2; }
.moderate-rain { background: #50b83c; }
.heavy-rain { background: #f2c94c; }
.severe-storm { background: #f2994a; }
.extreme-storm { background: #eb5757; }
.intense-storm { background: #9b51e0; }
.historic-storm { background: #ffffff; }

/* Temperature colors */
.temp--20 { background: #330099; }
.temp--10 { background: #3300CC; }
.temp-0 { background: #0033FF; }
.temp-10 { background: #0099FF; }
.temp-20 { background: #00CCFF; }
.temp-30 { background: #00FFCC; }
.temp-40 { background: #00FF99; }
.temp-50 { background: #00FF33; }
.temp-60 { background: #FFFF00; }
.temp-70 { background: #FFCC00; }
.temp-80 { background: #FF9900; }
.temp-90 { background: #FF6600; }
.temp-100 { background: #FF3300; }
.temp-110 { background: #CC0000; }
.temp-120 { background: #990000; }

/* Update legend section to show more accurate range */
.legend-section:nth-child(2) h4 {
    margin-bottom: 0.375rem;
}

.legend-section:nth-child(2) .temp-legend {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.25rem;
}

.temp-legend {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.125rem;
    margin-top: 0.5rem;
}

.temp-legend-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 600;
    font-size: calc(0.625rem * var(--scale-factor));
}

.temp-color {
    width: 1rem;
    height: 0.75rem;
    border-radius: 2px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Ensure temperature layer has vibrant colors */
.vibrant-temp-layer {
    filter: contrast(1.3) saturate(2.5) brightness(1.2) hue-rotate(0deg);
}

/* Update legend section to show more accurate range */
.legend-section:nth-child(2) h4 {
    margin-bottom: 0.375rem;
}

.legend-section:nth-child(2) .temp-legend {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.25rem;
}

.temp-legend-item span {
    font-size: calc(0.625rem * var(--scale-factor));
}

.map-container {
    flex: 1;
    position: relative;
}

.map {
    width: 100%;
    height: 100%;
}

.map-controls {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.control-btn {
    width: calc(32px * var(--scale-factor));
    height: calc(32px * var(--scale-factor));
    background: var(--background-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.control-btn:hover {
    background: var(--background-tertiary);
    transform: translateY(-1px);
}

.alerts-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.95), rgba(30, 41, 59, 0.9));
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    z-index: 1000;
    transition: height 0.3s ease;
    cursor: pointer;
}

.alerts-bar.collapsed {
    height: var(--alerts-bar-collapsed-height);
}

.alerts-bar.expanded {
    height: var(--alerts-bar-height);
}

.alerts-pullup {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 20px;
    background: var(--background-tertiary);
    border-radius: 4px 4px 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.alerts-pullup:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.alerts-pullup::after {
    content: '▲';
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.alerts-bar.expanded .alerts-pullup::after {
    transform: rotate(180deg);
}

.alerts-container {
    padding: 0.5rem 1rem;
    max-width: 1400px;
    margin: 0 auto;
    max-height: calc(var(--alerts-bar-height) - var(--alerts-bar-collapsed-height));
    overflow-y: auto;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.alert-item:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: rgba(239, 68, 68, 0.6);
    transform: translateY(-1px);
}

.alert-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--error-color), var(--warning-color));
    border-radius: 0 2px 2px 0;
}

.alert-icon {
    font-size: calc(1.25rem * var(--scale-factor));
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.alert-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.alert-title {
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #fecaca;
    font-size: calc(0.75rem * var(--scale-factor));
    line-height: 1.3;
}

.alert-location {
    color: var(--text-muted);
    font-size: calc(0.6875rem * var(--scale-factor));
    font-weight: 300;
}

.alert-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: calc(1rem * var(--scale-factor));
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 50%;
    transition: all 0.2s;
    line-height: 1;
}

.alert-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    transform: scale(1.1);
}

/* Hide alerts bar when empty */
.alerts-bar:empty,
.alerts-bar > .alerts-container:empty {
    display: none;
}

/* Mobile responsiveness for alerts */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        left: -100%;
        height: calc(100vh - var(--header-height) - var(--alerts-bar-collapsed-height));
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .sidebar-toggle {
        right: -20px;
    }
    
    .alerts-bar {
        padding: 0.5rem 1rem;
        max-height: 20vh;
    }
    
    .alert-item {
        padding: 0.5rem 0.75rem;
    }
    
    .alert-title {
        font-size: calc(0.75rem * var(--scale-factor));
    }
}

.loading-spinner {
    width: calc(30px * var(--scale-factor));
    height: calc(30px * var(--scale-factor));
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 1.5rem auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}