/* Reset básico e fontes */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-gradient: linear-gradient(135deg, #008000 0%, #004d00 100%);
    --accent-color: #ffcc00; /* Amarelo ouro para detalhes */
    --secondary-color: #ffffff;
    --text-color: #2d3436;
    --bg-color: #f0f2f5;
    --card-shadow: 0 4px 15px rgba(0,0,0,0.1);
    --wc-highlight: #d63031; /* Cor para destaque da Copa do Mundo */
}

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

/* Cabeçalho Moderno */
header {
    background: var(--primary-gradient);
    color: var(--secondary-color);
    padding: 40px 20px;
    text-align: center;
    border-bottom: 5px solid var(--accent-color);
}

header h1 {
    font-size: 2.8em;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header h4 {
    font-weight: 300;
    opacity: 0.9;
    font-size: 1.2em;
}

/* Container Principal estilo Card */
main {
    max-width: 1000px;
    margin: -30px auto 40px; /* Sobe um pouco para sobrepor o header */
    padding: 20px;
    background-color: var(--secondary-color);
    box-shadow: var(--card-shadow);
    border-radius: 15px;
    position: relative;
    z-index: 10;
}

/* Seção Hero */
.hero {
    text-align: center;
    padding: 20px 0 40px;
    border-bottom: 1px dashed #ddd;
}

.hero img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin-bottom: 25px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    transition: transform 0.3s ease;
}

.hero img:hover {
    transform: scale(1.02);
}

.cta-button {
    display: inline-block;
    background: var(--primary-gradient);
    color: var(--secondary-color);
    padding: 16px 35px;
    text-decoration: none;
    font-size: 1.2em;
    font-weight: 800;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 128, 0, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 128, 0, 0.4);
    filter: brightness(1.2);
}

/* Calendário e Categorias */
.calendario h2 {
    text-align: center;
    color: #004d00;
    margin: 40px 0 30px;
    font-size: 2.2em;
    position: relative;
}

.calendario h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 10px auto;
}

.categoria {
    margin-bottom: 25px;
    padding: 25px;
    background-color: #fff;
    border-radius: 12px;
    border: 1px solid #eee;
    transition: all 0.3s ease;
}

.categoria:hover {
    border-color: #008000;
    background-color: #f9fff9;
}

.categoria h3 {
    color: #006400;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    font-size: 1.4em;
}

/* Destaque Especial Copa do Mundo */
.categoria[style*="background-color"] {
    background: linear-gradient(to right, #fff5f5, #ffffff) !important;
    border: 2px solid var(--wc-highlight) !important;
}

.categoria ul {
    list-style: none;
}

.categoria li {
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 1.1em;
}

.categoria li:last-child {
    border-bottom: none;
}

.categoria li strong {
    color: #008000;
    font-weight: 700;
}

/* Rodapé */
footer {
    background: #1a1a1a;
    color: #999;
    text-align: center;
    padding: 50px 20px;
}

footer nav {
    margin-bottom: 20px;
}

footer nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 15px;
    font-weight: 500;
    transition: color 0.3s;
}

footer nav a:hover {
    color: var(--accent-color);
}

/* Responsividade Aprimorada */
@media (max-width: 768px) {
    header h1 { font-size: 2em; }
    main { margin: -20px 10px 20px; }
    .categoria { padding: 15px; }
    .cta-button { width: 100%; text-align: center; }
}