* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f4f5f7;
    color: #222;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 16px;
}

.topo {
    background: #1f2a44;
    color: #fff;
    padding: 16px 0;
}

.logo {
    color: #fff;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
}

main {
    padding: 32px 16px;
}

.grid-eventos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.card-evento {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
}

.card-evento img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.card-evento .conteudo {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-evento h2 {
    margin: 0;
    font-size: 1.1rem;
}

.card-evento .info {
    font-size: 0.9rem;
    color: #555;
}

.btn {
    display: inline-block;
    background: #1f2a44;
    color: #fff;
    padding: 10px 16px;
    border-radius: 6px;
    text-decoration: none;
    text-align: center;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn:hover {
    background: #16203a;
}

.evento-detalhe {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.evento-detalhe img {
    width: 100%;
    max-height: 360px;
    object-fit: cover;
}

.evento-detalhe .conteudo {
    padding: 24px;
}

.form-grupo {
    margin-bottom: 16px;
}

.form-grupo label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.form-grupo input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
}

.alerta {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.alerta-sucesso {
    background: #d4edda;
    color: #155724;
}

.alerta-erro {
    background: #f8d7da;
    color: #721c24;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

table th,
table td {
    padding: 10px 12px;
    border-bottom: 1px solid #eee;
    text-align: left;
}

.acoes {
    display: flex;
    gap: 8px;
}

.acoes a {
    font-size: 0.9rem;
}