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

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #e94560;
    --text-color: #f5f5f5;
    --text-muted: #b0b0b0;
    --card-bg: #0f3460;
    --border-color: #2a2a3e;
    --success-color: #4caf50;
    --warning-color: #ff9800;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    border-bottom: 2px solid var(--border-color);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-color), #ff6b9d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 1.2rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Statistics Banner */
.stats-banner {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.stat-item {
    text-align: center;
    padding: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Message Section */
.message-section {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    margin-bottom: 3rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.message-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--accent-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 1rem;
}

.message-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.message-content p {
    margin-bottom: 1.5rem;
}

.message-content .emphasis {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-color);
    padding: 1.5rem;
    background: rgba(233, 69, 96, 0.1);
    border-left: 4px solid var(--accent-color);
    border-radius: 4px;
}

.message-content .call-to-action {
    font-size: 1.15rem;
    font-weight: 500;
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(76, 175, 80, 0.1);
    border-left: 4px solid var(--success-color);
    border-radius: 4px;
}

/* Action Section */
.action-section {
    margin-bottom: 3rem;
}

.action-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.action-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.action-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

.lookup-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.lookup-form input,
.lookup-form select {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background: var(--primary-color);
    color: var(--text-color);
    font-size: 1rem;
    font-family: inherit;
}

.lookup-form input:focus,
.lookup-form select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.lookup-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.lookup-form button,
.share-btn {
    padding: 0.75rem 1.5rem;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.lookup-form button:hover,
.share-btn:hover {
    background: #d63954;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.4);
}

.representatives-list {
    margin-top: 1.5rem;
}

.rep-item {
    background: var(--primary-color);
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
}

.rep-item h4 {
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.rep-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.rep-item .message-count {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.send-btn {
    padding: 0.5rem 1rem;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    transition: all 0.3s ease;
}

.send-btn:hover {
    background: #45a049;
}

.share-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.share-btn {
    width: 100%;
}

.share-btn.twitter {
    background: #1da1f2;
}

.share-btn.twitter:hover {
    background: #0d8bd9;
}

.share-btn.facebook {
    background: #1877f2;
}

.share-btn.facebook:hover {
    background: #166fe5;
}

.share-btn.email {
    background: var(--warning-color);
}

.share-btn.email:hover {
    background: #f57c00;
}

.share-btn.copy {
    background: var(--text-muted);
}

.share-btn.copy:hover {
    background: #909090;
}

/* Visualization Section */
.visualization-section {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    margin-bottom: 3rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.visualization-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    text-align: center;
}

.section-description {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.visualization-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--accent-color);
}

.filter-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.congress-viz {
    min-height: 600px;
    padding: 2rem;
    background: var(--primary-color);
    border-radius: 8px;
}

.rep-node {
    cursor: pointer;
    transition: all 0.3s ease;
}

.rep-node:hover {
    opacity: 0.8;
}

.rep-label {
    font-size: 0.75rem;
    fill: var(--text-color);
    pointer-events: none;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    border-top: 2px solid var(--border-color);
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

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

    .message-section {
        padding: 2rem 1.5rem;
    }

    .action-grid {
        grid-template-columns: 1fr;
    }

    .share-buttons {
        grid-template-columns: 1fr;
    }
}

/* Loading and Success States */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

.success-message {
    background: rgba(76, 175, 80, 0.2);
    border: 2px solid var(--success-color);
    color: var(--success-color);
    padding: 1rem;
    border-radius: 6px;
    margin-top: 1rem;
    text-align: center;
}

.error-message {
    background: rgba(233, 69, 96, 0.2);
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    padding: 1rem;
    border-radius: 6px;
    margin-top: 1rem;
    text-align: center;
}