:root {
    --primary-navy: #1a2a3a;
    --secondary-cream: #f4f1ea;
    --accent-red: #d32f2f;
    --accent-blue: #1976d2;
    --text-dark: #222222;
    --text-light: #555555;
    --border-color: #e0e0e0;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    
    --font-serif: 'Merriweather', serif;
    --font-sans: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--secondary-cream);
    color: var(--text-dark);
    line-height: 1.6;
}

.app-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.main-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--primary-navy);
}

.main-header h1 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Screen Management */
.screen {
    display: none;
    animation: fadeIn 0.5s ease-out;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.intro-card, .bill-card, .results-card {
    background: white;
    padding: 2.5rem;
    border-radius: 4px;
    box-shadow: var(--card-shadow);
    border: 1px solid rgba(0,0,0,0.05);
}

.intro-card h2, .results-card h2 {
    font-family: var(--font-serif);
    color: var(--primary-navy);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    text-align: center;
}

.stats-preview {
    display: flex;
    justify-content: space-around;
    margin: 2rem 0;
    padding: 1.5rem 0;
    background-color: #f8f9fa;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

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

.stat-number {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-navy);
}

.stat-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-light);
    margin-top: 0.25rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.primary-btn {
    background-color: var(--primary-navy);
    color: white;
    width: 100%;
}

.primary-btn:hover {
    background-color: #2c4257;
    transform: translateY(-1px);
}

.secondary-btn {
    background-color: white;
    color: var(--primary-navy);
    border: 2px solid var(--primary-navy);
    width: 100%;
    margin-top: 1rem;
}

.secondary-btn:hover {
    background-color: #f0f4f8;
}

/* Question Navigation */
.question-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.nav-btn {
    padding: 0.5rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: white;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-btn:hover:not(:disabled) {
    background-color: #f5f5f5;
    color: var(--text-dark);
    border-color: #ccc;
}

.nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.progress-info {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Quiz Interface */
.progress-bar-container {
    height: 6px;
    background-color: #e0e0e0;
    border-radius: 3px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--primary-navy);
    width: 0%;
    transition: width 0.3s ease;
}

.bill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.bill-id {
    font-weight: 700;
    color: var(--primary-navy);
    font-size: 1.2rem;
}

.bill-meta-group {
    display: flex;
    gap: 0.5rem;
}

.bill-year {
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    background-color: var(--primary-navy);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.bill-result {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
}

.bill-result.passed {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.bill-result.failed {
    background-color: #ffebee;
    color: #c62828;
}

.bill-context {
    margin-bottom: 1.5rem;
}

.bill-context p {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--text-dark);
}

.bill-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    padding: 0.75rem 1rem;
    background-color: #f8f9fa;
    border-radius: 4px;
}

.vote-actions {
    display: grid;
    grid-template-columns: 1fr 1fr 0.5fr;
    gap: 1rem;
}

.vote-btn {
    padding: 1.25rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.yea-btn {
    background-color: #e8f5e9;
    color: #2e7d32;
    border-color: #c8e6c9;
}

.yea-btn:hover {
    background-color: #c8e6c9;
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(46, 125, 50, 0.15);
}

.nay-btn {
    background-color: #ffebee;
    color: #c62828;
    border-color: #ffcdd2;
}

.nay-btn:hover {
    background-color: #ffcdd2;
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(198, 40, 40, 0.15);
}

.skip-btn {
    background-color: #f5f5f5;
    color: var(--text-light);
    border-color: #e0e0e0;
}

.skip-btn:hover {
    background-color: #e0e0e0;
}

/* Results */
.score-display {
    margin: 2rem 0;
}

.party-label {
    display: inline-block;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.party-label.democrat { color: var(--accent-blue); float: left; }
.party-label.republican { color: var(--accent-red); float: right; }

.alignment-meter {
    clear: both;
    position: relative;
    height: 40px;
    margin: 1rem 0;
}

.meter-track {
    position: absolute;
    top: 15px;
    left: 0;
    right: 0;
    height: 10px;
    border-radius: 5px;
    background: linear-gradient(90deg, var(--accent-blue) 0%, #e0e0e0 50%, var(--accent-red) 100%);
}

.center-line {
    position: absolute;
    top: 5px;
    bottom: 5px;
    left: 50%;
    width: 2px;
    background-color: rgba(0,0,0,0.3);
    z-index: 1;
}

.user-marker {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: left 1s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 2;
}

.marker-tooltip {
    background-color: var(--primary-navy);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 2px;
    white-space: nowrap;
}

.marker-tooltip::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 4px 4px 0;
    border-style: solid;
    border-color: var(--primary-navy) transparent transparent transparent;
}

.marker-pin {
    width: 20px;
    height: 20px;
    background-color: white;
    border: 4px solid var(--primary-navy);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.score-description {
    text-align: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f8f9fa;
    border-radius: 4px;
}

.score-description h3 {
    color: var(--primary-navy);
    margin-bottom: 0.5rem;
    font-family: var(--font-serif);
}

.results-breakdown {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.results-breakdown h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.breakdown-subtitle {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.breakdown-item {
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
}

.breakdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.breakdown-title {
    font-weight: 700;
    color: var(--primary-navy);
}

.breakdown-match {
    font-weight: 600;
    font-size: 0.85rem;
}

.match-dem { color: var(--accent-blue); }
.match-rep { color: var(--accent-red); }
.match-mixed { color: var(--text-light); }

.breakdown-bar {
    height: 8px;
    background-color: #f0f0f0;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.breakdown-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue) 0%, var(--accent-red) 100%);
    opacity: 0.3;
}

.vote-marker {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: #000;
    z-index: 2;
}

.main-footer {
    margin-top: auto;
    text-align: center;
    padding-top: 2rem;
    color: var(--text-light);
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 600px) {
    .main-header h1 { font-size: 1.8rem; }
    
    .vote-actions {
        grid-template-columns: 1fr;
    }
    
    .vote-btn {
        padding: 1rem;
    }
    
    .intro-card, .bill-card, .results-card {
        padding: 1.5rem;
    }
    
    .stats-preview {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .question-nav {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }
    
    .nav-btn {
        text-align: center;
    }
    
    .progress-info {
        text-align: center;
    }
    
    .bill-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
    
    .bill-info {
        flex-direction: column;
        gap: 0.5rem;
    }
}