:root {
    --cor-primaria: #2563eb;
    --cor-primaria-hover: #1d4ed8;
    --cor-perigo: #dc2626;
    --cor-perigo-hover: #b91c1c;
    --cor-texto: #1f2937;
    --cor-texto-suave: #6b7280;
    --cor-borda: #e5e7eb;
    --cor-fundo: #f3f4f6;
    --cor-card: #ffffff;
    --raio: 10px;
    --sombra: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
    background: var(--cor-fundo);
    color: var(--cor-texto);
}

.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 20px 80px;
}

h1 {
    font-size: 1.75rem;
    margin-bottom: 24px;
}

h2 {
    font-size: 1.1rem;
    margin: 0 0 16px;
}

.card {
    background: var(--cor-card);
    border-radius: var(--raio);
    box-shadow: var(--sombra);
    padding: 24px;
    margin-bottom: 24px;
}

.campo {
    display: flex;
    flex-direction: column;
    margin-bottom: 16px;
    position: relative;
}

.campo label {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--cor-texto-suave);
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="search"] {
    padding: 10px 12px;
    border: 1px solid var(--cor-borda);
    border-radius: 8px;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus {
    border-color: var(--cor-primaria);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

input.campo-invalido {
    border-color: var(--cor-perigo);
}

.mensagem-erro {
    color: var(--cor-perigo);
    font-size: 0.78rem;
    margin-top: 4px;
}

.botoes {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

button {
    cursor: pointer;
    border: none;
    border-radius: 8px;
    padding: 10px 18px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background-color 0.15s ease, opacity 0.15s ease;
}

#btnSalvar {
    background: var(--cor-primaria);
    color: #fff;
}

#btnSalvar:hover {
    background: var(--cor-primaria-hover);
}

#btnCancelar {
    background: transparent;
    color: var(--cor-texto-suave);
    border: 1px solid var(--cor-borda);
}

#btnCancelar:hover {
    background: var(--cor-fundo);
}

#pesquisa {
    width: 100%;
    margin-bottom: 16px;
}

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

thead th {
    text-align: left;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--cor-texto-suave);
    border-bottom: 1px solid var(--cor-borda);
    padding: 8px 6px;
}

tbody td {
    padding: 10px 6px;
    border-bottom: 1px solid var(--cor-borda);
    font-size: 0.9rem;
}

tbody tr:last-child td {
    border-bottom: none;
}

td.vazio {
    text-align: center;
    color: var(--cor-texto-suave);
    padding: 24px 0;
}

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

.btn-editar {
    background: #eff6ff;
    color: var(--cor-primaria);
}

.btn-editar:hover {
    background: #dbeafe;
}

.btn-remover {
    background: #fef2f2;
    color: var(--cor-perigo);
}

.btn-remover:hover {
    background: #fee2e2;
}