:root {
    --primary-color: #4CAF50;
    --secondary-color: #2196F3;
    --accent-color: #FF9800;
    --background-color: #f0f2f5;
    --card-background: #ffffff;
    --text-color: #333333;
    --border-radius: 10px;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
    padding: 4rem 1rem;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Botão CTA */
.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-size: 1.2rem;
    font-weight: bold;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Seções */
section {
    padding: 4rem 0;
}

section:nth-child(even) {
    background-color: white;
}

h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

/* Cards de Regras */
.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.rule-card {
    background-color: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.rule-card:hover {
    transform: translateY(-5px);
}

.rule-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.rule-card ul {
    list-style-position: inside;
    margin-top: 1rem;
}

.rule-card li {
    margin-bottom: 0.5rem;
}

/* Cards de Princípios */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.principle-card {
    background-color: var(--card-background);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.principle-card:hover {
    transform: translateY(-5px);
}

.principle-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Seção Começar */
.start-game {
    text-align: center;
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
}

.start-game h2,
.start-game p {
    color: white;
}

.start-game p {
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

/* Footer */
footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1.2rem;
    }

    .container {
        padding: 1rem;
    }

    section {
        padding: 2rem 0;
    }

    h2 {
        font-size: 2rem;
    }

    .rules-grid,
    .principles-grid {
        grid-template-columns: 1fr;
    }
}

/* Animações */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.rule-card,
.principle-card {
    animation: fadeIn 0.8s ease-out forwards;
}