* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--color-fondo, #f4f6f8);
    color: var(--color-texto, #212121);
    font-size: var(--tamano-letra-base, 16px);
}

.layout { display: flex; min-height: 100vh; }

.sidebar {
    width: 230px;
    background: #1a1f2b;
    color: #fff;
    display: flex;
    flex-direction: column;
}

.sidebar .brand {
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: bold;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.sidebar .brand img { height: 32px; }

.sidebar nav { display: flex; flex-direction: column; padding: 10px 0; }
.sidebar nav a {
    color: #cfd6e4;
    text-decoration: none;
    padding: 10px 18px;
    font-size: 0.92em;
}
.sidebar nav a:hover { background: rgba(255,255,255,0.08); color: #fff; }

.main { flex: 1; display: flex; flex-direction: column; }

.topbar {
    background: #fff;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e3e3e3;
}
.topbar a { color: var(--color-primario, #1565C0); text-decoration: none; font-weight: bold; }

.content { padding: 24px; }

.card {
    background: #fff;
    border-radius: 10px;
    padding: 18px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.grid-cards .card h3 { margin: 0 0 8px; font-size: 0.85em; color: #777; font-weight: normal; }
.grid-cards .card .value { font-size: 1.6em; font-weight: bold; color: var(--color-primario, #1565C0); }

table { width: 100%; border-collapse: collapse; background: #fff; }
table th, table td { padding: 10px; border-bottom: 1px solid #eee; text-align: left; font-size: 0.9em; }
table th { background: #fafafa; }

.btn {
    display: inline-block;
    padding: 8px 16px;
    background: var(--color-primario, #1565C0);
    color: #fff;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.9em;
}
.btn-secondary { background: var(--color-secundario, #FF6F00); }

/* ===================== FORMULARIOS ===================== */
.form-group { margin-bottom: 16px; }
.form-group label { display:block; font-size:0.82em; font-weight:600; color:#444; margin-bottom:5px; text-transform:uppercase; letter-spacing:0.03em; }
.form-group input, .form-group select, .form-group textarea { width:100%; padding:10px 12px; border:1.5px solid #e0e0e0; border-radius:8px; font-size:0.92em; color:#1a1f2b; outline:none; transition:border-color 0.2s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color:var(--color-primario,#1565C0); }
.form-row { display:flex; gap:16px; flex-wrap:wrap; }
.form-row .form-group { flex:1; min-width:180px; }
.req { color:#c00; }

/* ===================== ALERTAS ===================== */
.alert { padding:12px 16px; border-radius:8px; margin-bottom:16px; font-size:0.9em; }
.alert-ok    { background:#f0fdf4; color:#166534; border:1px solid #bbf7d0; }
.alert-error { background:#fef2f2; color:#b91c1c; border:1px solid #fecaca; }
.alert-warn  { background:#fffbeb; color:#92400e; border:1px solid #fde68a; }
.alert-info  { background:#eff6ff; color:#1e40af; border:1px solid #bfdbfe; }

/* ===================== BADGES ===================== */
.badge { display:inline-block; padding:3px 10px; border-radius:20px; font-size:0.78em; font-weight:600; }
.badge-ok  { background:#dcfce7; color:#166534; }
.badge-off { background:#f1f5f9; color:#64748b; }
.badge-warn{ background:#fef9c3; color:#854d0e; }

/* ===================== BOTONES EXTRA ===================== */
.btn-sm { padding:5px 10px; font-size:0.8em; margin:2px; }
.btn-warn   { background:#f59e0b; }
.btn-ok     { background:#16a34a; }
.btn-danger { background:#dc2626; }