:root {
    --azul:        #2563eb;
    --azul-dark:   #1d4ed8;
    --gris-bg:     #f3f4f6;
    --gris-borde:  #e5e7eb;
    --gris-texto:  #4b5563;
    --gris-suave:  #6b7280;
    --negro:       #1f2937;
    --rojo:        #dc2626;
    --verde:       #16a34a;
    --ambar:       #d97706;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--negro);
    background: var(--gris-bg);
    font-size: 14px;
    line-height: 1.5;
}

a { color: var(--azul); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    background: var(--azul);
    color: #fff;
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.topbar .brand { font-size: 18px; font-weight: 700; letter-spacing: -0.3px; }
.topbar .brand small { font-weight: 400; opacity: 0.85; margin-left: 8px; font-size: 12px; }
.topbar nav a { color: #fff; margin-left: 18px; opacity: 0.92; font-size: 13px; }
.topbar nav a:hover { opacity: 1; text-decoration: underline; }
.topbar nav .who { opacity: 0.7; margin-left: 24px; font-size: 12px; }

.container {
    max-width: 1100px;
    margin: 28px auto;
    padding: 0 24px;
}

h1 { margin: 0 0 18px 0; font-size: 22px; font-weight: 700; }
h2 { margin: 28px 0 14px 0; font-size: 17px; font-weight: 700; }

.card {
    background: #fff;
    border: 1px solid var(--gris-borde);
    border-radius: 10px;
    padding: 22px;
    margin-bottom: 22px;
}

.card h2:first-child { margin-top: 0; }

.kpis {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}
.kpi {
    background: #fff;
    border: 1px solid var(--gris-borde);
    border-radius: 10px;
    padding: 16px 18px;
}
.kpi .lbl { font-size: 11px; color: var(--gris-suave); text-transform: uppercase; letter-spacing: 0.5px; }
.kpi .val { font-size: 22px; font-weight: 700; margin-top: 4px; }
.kpi.azul   .val { color: var(--azul); }
.kpi.verde  .val { color: var(--verde); }
.kpi.ambar  .val { color: var(--ambar); }
.kpi.rojo   .val { color: var(--rojo); }

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}
table thead th {
    background: var(--gris-bg);
    text-align: left;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gris-suave);
    padding: 10px 14px;
    border-bottom: 1px solid var(--gris-borde);
}
table thead th.num { text-align: right; }
table tbody td {
    padding: 14px;
    border-bottom: 1px solid var(--gris-borde);
    font-size: 14px;
}
table tbody td.num { text-align: right; font-variant-numeric: tabular-nums; }
table tbody tr:hover { background: #fafbff; }
table tbody tr:last-child td { border-bottom: none; }

.tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
}
.tag.gris  { background: #e5e7eb; color: #4b5563; }
.tag.verde { background: #dcfce7; color: #166534; }
.tag.ambar { background: #fef3c7; color: #92400e; }
.tag.rojo  { background: #fee2e2; color: #991b1b; }

.btn {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 8px;
    background: var(--azul);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
}
.btn:hover { background: var(--azul-dark); text-decoration: none; }
.btn.gris  { background: #fff; color: var(--negro); border: 1px solid var(--gris-borde); }
.btn.gris:hover { background: var(--gris-bg); }
.btn.peq   { padding: 5px 10px; font-size: 12px; }

.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.row.right { justify-content: flex-end; }

select, input[type=text], input[type=password], input[type=date], input[type=email] {
    border: 1px solid var(--gris-borde);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 14px;
    background: #fff;
}

.flash {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 18px;
    font-size: 14px;
}
.flash.ok    { background: #dcfce7; color: #166534; }
.flash.error { background: #fee2e2; color: #991b1b; }

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-card {
    background: #fff;
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    width: 360px;
}
.login-card h1 { text-align: center; margin-bottom: 20px; }
.login-card label { display: block; font-size: 12px; color: var(--gris-suave); margin: 14px 0 4px 0; }
.login-card input { width: 100%; }
.login-card .btn { width: 100%; margin-top: 18px; padding: 11px; font-size: 14px; }