/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --republican-color: #E91D0E;
    --democratic-color: #232066;
    --neutral-color: #808080;
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --border-color: #ddd;
    --text-primary: #333;
    --text-secondary: #666;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

header h1 {
    font-size: 2.5em;
    color: var(--text-primary);
    margin-bottom: 10px;
}

header .subtitle {
    font-size: 1.1em;
    color: var(--text-secondary);
}

/* Controls Panel */
.controls-panel {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9em;
}

.filter-group select,
.filter-group input[type="range"] {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1em;
}

.filter-group select[multiple] {
    height: 100px;
}

.party-filters {
    display: flex;
    gap: 15px;
}

.party-filters label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: normal;
    cursor: pointer;
}

.pvi-slider {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pvi-display {
    font-size: 0.9em;
    color: var(--text-secondary);
    text-align: center;
}

.btn-reset {
    padding: 10px 20px;
    background-color: var(--republican-color);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.3s;
    height: fit-content;
}

.btn-reset:hover {
    background-color: #c11808;
}

/* Stats Panel */
.stats-panel {
    background: var(--card-bg);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-label {
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.stat-value {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.map-container,
.table-container {
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
    font-size: 0.9em;
    color: var(--text-secondary);
}

footer a {
    color: var(--democratic-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .controls-panel {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }

    .controls-panel {
        grid-template-columns: 1fr;
    }

    .stats-panel {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Loading State */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
    font-size: 1.2em;
    color: var(--text-secondary);
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-left: 10px;
    border: 3px solid var(--border-color);
    border-top-color: var(--democratic-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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