/* Configuração Global e Fundo Preto */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #121212;
    color: #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 40px 20px;
}

/* Container Principal (Card) */
.container {
    background-color: #1e1e1e;
    width: 100%;
    max-width: 950px;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    border: 1px solid #2c2c2c;
}

/* Títulos */
h2 {
    color: #ffffff;
    margin-bottom: 20px;
    font-size: 1.6rem;
    border-left: 4px solid #3b82f6;
    padding-left: 10px;
}

h3 {
    color: #cbd5e1;
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

/* Alertas de Erro/Sucesso */
.alert {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.alert.sucesso {
    background-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
    border: 1px solid #10b981;
}
.alert.erro {
    background-color: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid #ef4444;
}

/* Grupos de Formulário */
.input-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.85rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px;
    background-color: #2a2a2a;
    border: 1px solid #3f3f46;
    border-radius: 6px;
    color: #ffffff;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

/* Botão Salvar */
button[type="submit"] {
    width: 100%;
    background-color: #3b82f6;
    color: #ffffff;
    border: none;
    padding: 12px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    margin-top: 10px;
}

button[type="submit"]:hover {
    background-color: #2563eb;
}

button[type="submit"]:active {
    transform: scale(0.98);
}

/* Divisor */
.divider {
    border: none;
    height: 1px;
    background-color: #2c2c2c;
    margin: 30px 0 20px 0;
}

/* Tabela Estilizada */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 800px;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

th {
    background-color: #27272a;
    color: #cbd5e1;
    padding: 12px;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

td {
    padding: 12px;
    border-bottom: 1px solid #27272a;
    color: #d4d4d8;
}

tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Estilo do Botão Voltar */
.btn-voltar {
    display: inline-block;
    background-color: #2a2a2a;
    color: #cbd5e1;
    padding: 8px 14px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    border: 1px solid #3f3f46;
    margin-bottom: 20px;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.btn-voltar:hover {
    background-color: #3b82f6;
    color: #ffffff;
    border-color: #3b82f6;
}