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

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.2);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
}

.card h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.prediction-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.select-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.2s;
}

.select-input:hover {
    border-color: var(--primary-color);
}

.select-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

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

.btn {
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}


.results-content {
    margin-top: 1rem;
}

.matchup-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
}

.team-display {
    flex: 1;
    text-align: center;
}

.team-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.team-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.vs-divider {
    margin: 0 1.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: white;
}

.prediction-result {
    text-align: center;
}

.result-badge {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 2rem;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.result-badge.win {
    background: var(--success-color);
    color: white;
}

.result-badge.loss {
    background: var(--danger-color);
    color: white;
}

.probability-display {
    margin-top: 1.5rem;
}

.probability-bar {
    width: 100%;
    height: 10px;
    background: var(--bg-primary);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.probability-fill {
    height: 100%;
    background: var(--primary-color);
    border-radius: 5px;
    transition: width 0.5s ease;
}

.probability-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.stat-item {
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.stat-value {
    display: block;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .header h1 {
        font-size: 2rem;
    }

    .card {
        padding: 1.5rem;
    }

    .matchup-display {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .vs-divider {
        margin: 0.5rem 0;
    }

    .probability-stats {
        grid-template-columns: 1fr;
    }
}