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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

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

/* Header */
.header {
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Permite que o conteúdo quebre linha se necessário */
}

.header h1 {
    color: #333;
    font-size: 24px;
}

.header nav a {
    color: #667eea;
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.3s;
    white-space: nowrap; /* Impede que o texto quebre linha */
}

.header nav a:hover {
    color: #764ba2;
}

.logout-btn {
    background: #e74c3c;
    color: white !important;
    padding: 8px 16px;
    border-radius: 5px;
    margin-left: 20px; /* Garante espaçamento do link anterior */
}

.logout-btn:hover {
    background: #c0392b !important;
}

/* Cards de resumo */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.card h3 {
    color: #666;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.card .value {
    font-size: 32px;
    font-weight: bold;
    color: #333;
}

.card.total .value { color: #3498db; }
.card.pago .value { color: #27ae60; }
.card.pendente .value { color: #e67e22; }
.card.apagar .value { color: #e74c3c; }

/* Tabelas */
.table-container {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.table-header h2 {
    color: #333;
    font-size: 20px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table thead {
    background: #f8f9fa;
}

table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #555;
    border-bottom: 2px solid #dee2e6;
}

table td {
    padding: 12px;
    border-bottom: 1px solid #dee2e6;
    color: #333;
}

table tbody tr:hover {
    background: #f8f9fa;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-pendente {
    background: #fff3cd;
    color: #856404;
}

.status-pago {
    background: #d4edda;
    color: #155724;
}

/* Formulários */
.form-container {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

/* Login */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.login-container h2 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
}

/* Alertas */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Responsivo */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        text-align: center;
    }
    
    .header nav {
        margin-top: 15px;
    }
    
    .header nav a {
        margin: 0 10px;
    }
    
    .summary-cards {
        grid-template-columns: 1fr;
    }
    
    .table-header {
        flex-direction: column;
        gap: 15px;
    }

    /* Ajuste para tabelas em telas pequenas */
    .table-container {
        overflow-x: auto; /* Permite rolagem horizontal */
    }
    
    table {
        min-width: 600px; /* Garante que a tabela não encolha demais */
        font-size: 14px; /* Aumenta um pouco a fonte para legibilidade */
    }

    table th, table td {
        padding: 10px 8px;
    }
    
    /* Ajuste para a coluna de Ações */
    table td:last-child {
        white-space: normal; /* Permite que o conteúdo quebre linha */
        display: flex;
        flex-direction: column;
        gap: 5px; /* Espaçamento entre os botões */
    }
    
    /* Empilha os botões de ação */
    table td .btn {
        display: block;
        text-align: center;
        width: 100%;
        margin: 0 !important; /* Remove margens indesejadas */
    }
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: #999;
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 15px;
}