:root {
    --azul: #0275C5;
    --azul-escuro: #015ea0;
    --fundo: #f3f6fb;
    --borda: #e4e8ef;
    --texto: #2c2f36;
    --cinza: #6b7280;
    --verde: #1e8e3e;
}

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

body {
    font-family: 'Segoe UI', Roboto, sans-serif;
    background: var(--fundo);
    color: var(--texto);
}

/* ── Cabeçalho ── */
.cabecalho {
    background: var(--azul);
    padding: 22px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
.cabecalho h1 {
    color: white;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

/* ── Card / Título ── */
h2.titulo {
    max-width: 1100px;
    margin: 30px auto 10px;
    padding: 0 20px;
    font-size: 26px;
    color: var(--azul);
    font-weight: 500;
}
.card {
    max-width: 1100px;
    margin: 20px auto 40px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
    overflow: hidden;
}
.card-header {
    background: var(--azul);
    color: white;
    padding: 15px 25px;
    font-size: 18px;
    font-weight: 600;
}

/* ── Abas ── */
.abas {
    display: flex;
    border-bottom: 1px solid var(--borda);
    background: #fff;
}
.aba {
    padding: 12px 25px;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--cinza);
    border-bottom: 3px solid transparent;
    font-size: 15px;
}
.aba.ativa {
    border-bottom-color: var(--azul);
    color: var(--azul);
}

/* ── Painéis ── */
.painel { display: none; padding: 25px; }
.painel.ativo { display: block; }

/* ── Formulário ── */
.sub-titulo {
    color: var(--azul);
    font-size: 17px;
    margin: 20px 0 15px;
    font-weight: 600;
}
.campo { margin-bottom: 18px; }
.campo label {
    display: block;
    font-weight: 600;
    font-size: 13px;
    color: var(--cinza);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.campo input,
.campo textarea,
.campo select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--borda);
    border-radius: 10px;
    font-size: 14px;
    background: #fff;
    font-family: 'Segoe UI', Roboto, sans-serif;
}
.campo input:focus,
.campo textarea:focus,
.campo select:focus {
    border-color: var(--azul);
    outline: none;
    box-shadow: 0 0 0 3px rgba(2,117,197,0.12);
}

/* ── Grids de colunas ── */
.duas-colunas {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.tres-colunas {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 20px;
}

/* ── Upload ── */
.upload-linha {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #eaf3fb;
    border: 1px dashed var(--azul);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 20px;
}
.upload-linha label {
    font-weight: 600;
    font-size: 13px;
    color: var(--azul);
    white-space: nowrap;
}
.upload-linha input[type=file] {
    font-size: 13px;
    flex: 1;
}
.upload-status {
    font-size: 13px;
    color: var(--cinza);
    white-space: nowrap;
}
.upload-status.ok {
    color: var(--verde);
    font-weight: 600;
}

/* ── Botões ── */
.botoes {
    margin-top: 25px;
    display: flex;
    gap: 15px;
    align-items: center;
}
.btn {
    padding: 11px 26px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
}
.btn-gerar { background: var(--azul); color: white; }
.btn-gerar:hover { background: var(--azul-escuro); }
.btn-limpar { background: #d1d5db; color: #111; }
.btn-limpar:hover { background: #b8bec7; }

/* ── Estados ── */
.loading {
    display: none;
    color: var(--azul);
    font-weight: 600;
    font-size: 14px;
}
.erro-template {
    background: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 14px;
    display: none;
}

/* ── Rodapé ── */
footer {
    background: var(--azul);
    color: rgba(255,255,255,0.75);
    text-align: center;
    padding: 24px 20px;
    font-size: 13px;
    margin-top: 40px;
    line-height: 1.7;
}
footer p + p {
    margin-top: 4px;
    font-size: 12px;
    color: rgba(255,255,255,0.45);
}
.item-tr {
        background: #f8fafd;
        border: 1px solid var(--borda);
        border-radius: 12px;
        padding: 16px 18px;
        margin-bottom: 14px;
        position: relative;
    }
    .item-tr .item-numero {
        font-size: 12px;
        font-weight: 700;
        color: var(--azul);
        text-transform: uppercase;
        letter-spacing: 0.5px;
        margin-bottom: 12px;
    }
    .item-tr .btn-remover {
        position: absolute;
        top: 12px;
        right: 14px;
        background: #fee2e2;
        color: #b91c1c;
        border: none;
        border-radius: 6px;
        padding: 3px 10px;
        font-size: 12px;
        font-weight: 700;
        cursor: pointer;
    }
    .item-tr .btn-remover:hover { background: #fca5a5; }