:root {
    --cor-primaria: #2563eb;
    --cor-primaria-escura: #1d4ed8;
    --cor-texto: #1f2937;
    --cor-muted: #6b7280;
    --cor-borda: #e5e7eb;
    --cor-fundo: #f9fafb;
    --cor-erro: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--cor-texto);
    background: var(--cor-fundo);
    line-height: 1.6;
    min-height: 100vh;
}

/* Login */
.login-page {
    display: grid;
    place-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
}
.login-box {
    background: #fff;
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,.15);
    width: 100%;
    max-width: 400px;
}
.login-box h1 { font-size: 1.5rem; margin-bottom: .25rem; }
.login-box .subtitulo { color: var(--cor-muted); margin-bottom: 1.5rem; font-size: .9rem; }
.login-box label { display: block; margin-bottom: 1rem; font-weight: 500; }
.login-box input {
    width: 100%; padding: .75rem; margin-top: .35rem;
    border: 1px solid var(--cor-borda); border-radius: 8px;
    font-size: 1rem;
}
.login-box input:focus { outline: 2px solid var(--cor-primaria); border-color: transparent; }
.login-box .rodape { text-align: center; margin-top: 1rem; font-size: .9rem; }
.login-box .rodape a { color: var(--cor-primaria); text-decoration: none; }

/* Botões */
.btn {
    display: inline-block; padding: .6rem 1.2rem;
    border: none; border-radius: 8px; cursor: pointer;
    font-size: .95rem; font-weight: 500; text-decoration: none;
    transition: background .2s;
}
.btn-primary { background: var(--cor-primaria); color: #fff; }
.btn-primary:hover { background: var(--cor-primaria-escura); }
.btn-sm { padding: .35rem .8rem; font-size: .85rem; background: #e5e7eb; color: var(--cor-texto); }

/* Layout */
.container { max-width: 1100px; margin: 2rem auto; padding: 0 1.5rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.card {
    background: #fff; padding: 1.5rem; border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.card h3 { margin-bottom: 1rem; }
.muted { color: var(--cor-muted); }

/* Lista de empresas */
.lista-empresas { list-style: none; }
.lista-empresas li { padding: .6rem 0; border-bottom: 1px solid var(--cor-borda); }
.lista-empresas a { text-decoration: none; color: var(--cor-texto); display: block; }
.lista-empresas small { color: var(--cor-muted); display: block; font-size: .85rem; }

/* Tabela */
.tabela { width: 100%; border-collapse: collapse; background: #fff;
          border-radius: 12px; overflow: hidden;
          box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.tabela th, .tabela td { padding: .75rem 1rem; text-align: left; border-bottom: 1px solid var(--cor-borda); }
.tabela th { background: #f3f4f6; font-size: .85rem; text-transform: uppercase; color: var(--cor-muted); }

/* Badges de status */
.badge {
    display: inline-block; padding: .2rem .7rem; border-radius: 999px;
    color: #fff; font-size: .8rem; font-weight: 500;
}

/* Alertas */
.alerta { padding: .75rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.alerta-erro { background: #fee2e2; color: var(--cor-erro); }

/* Header */
header.app-header {
    background: #fff; border-bottom: 1px solid var(--cor-borda);
    padding: 1rem 1.5rem; display: flex; justify-content: space-between; align-items: center;
}
header.app-header a { color: var(--cor-texto); text-decoration: none; margin-left: 1rem; }
/* ============================================
   FORMULÁRIOS E ALERTAS ADICIONAIS
   ============================================ */

/* Alerta de sucesso */
.alerta-ok {
    background: #d1fae5;
    color: #065f46;
    padding: .75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 4px solid #10b981;
}

/* Alerta de erro (reforço visual) */
.alerta-erro {
    border-left: 4px solid var(--cor-erro);
}

/* Card de formulário */
.form-card {
    background: #fff;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
    max-width: 640px;
}
.form-card label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 500;
    font-size: .95rem;
}
.form-card input[type="text"],
.form-card input[type="number"],
.form-card input[type="email"],
.form-card input[type="password"],
.form-card input[type="file"],
.form-card select,
.form-card textarea {
    width: 100%;
    padding: .7rem;
    margin-top: .35rem;
    border: 1px solid var(--cor-borda);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
}
.form-card input:focus,
.form-card select:focus,
.form-card textarea:focus {
    outline: none;
    border-color: var(--cor-primaria);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}
.form-card input[type="file"] {
    padding: .5rem;
    cursor: pointer;
}
.form-card textarea {
    resize: vertical;
    min-height: 80px;
}
.form-card small.muted {
    display: block;
    margin-top: .35rem;
    font-size: .85rem;
    color: var(--cor-muted);
}

/* Linha com 2 colunas (ex: mês/ano) */
.linha {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Ações do formulário (botões) */
.acoes {
    display: flex;
    gap: .75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--cor-borda);
}
.acoes .btn {
    background: #e5e7eb;
    color: var(--cor-texto);
}
.acoes .btn:hover {
    background: #d1d5db;
}
.acoes .btn-primary {
    background: var(--cor-primaria);
    color: #fff;
}
.acoes .btn-primary:hover {
    background: var(--cor-primaria-escura);
}

/* Responsivo */
@media (max-width: 640px) {
    .linha {
        grid-template-columns: 1fr;
    }
    .acoes {
        flex-direction: column-reverse;
    }
    .acoes .btn {
        width: 100%;
        text-align: center;
    }
}