:root {
    --fondo: #eef3f8;
    --superficie: #ffffff;
    --linea: rgba(23, 50, 77, .12);
    --texto: #17324d;
    --muted: #5f6b7a;
    --azul: #2d7ff9;
    --verde: #16a34a;
    --morado: #7c3aed;
    --sombra: 0 16px 34px rgba(23, 50, 77, .09);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", Arial, sans-serif;
    color: var(--texto);
    background:
        radial-gradient(circle at top left, rgba(45, 127, 249, .15), transparent 30%),
        radial-gradient(circle at top right, rgba(124, 58, 237, .12), transparent 24%),
        linear-gradient(180deg, #f9fbff 0%, var(--fondo) 100%);
}

.wrap {
    width: min(1100px, calc(100% - 24px));
    margin: 18px auto;
}

.panel {
    background: rgba(255, 255, 255, .86);
    border: 1px solid var(--linea);
    border-radius: 20px;
    box-shadow: var(--sombra);
    padding: 20px;
    backdrop-filter: blur(10px);
}

h1 {
    margin: 0;
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.sub {
    margin-top: 8px;
    color: var(--muted);
    line-height: 1.5;
}

.grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-top: 14px;
}

.field {
    display: flex;
    flex-direction: column;
}

.field label {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 6px;
}

.field input,
.field select {
    border: 1px solid #d3dce6;
    border-radius: 10px;
    padding: 10px;
    font: inherit;
}

.acciones {
    margin-top: 14px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    border: 0;
    border-radius: 10px;
    padding: 11px 14px;
    color: #fff;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-azul { background: var(--azul); }
.btn-verde { background: var(--verde); }
.btn-morado { background: var(--morado); }
.btn-claro {
    background: #f4f7fb;
    border: 1px solid var(--linea);
    color: var(--texto);
}

.estado {
    margin-top: 14px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 14px;
}

.estado-info {
    background: #eaf4ff;
    border: 1px solid #c4e0ff;
    color: #194f80;
}

.estado-error {
    background: #ffeceb;
    border: 1px solid #f6b6b1;
    color: #7a1f18;
}

.resumen {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.kpi {
    border: 1px solid var(--linea);
    border-radius: 12px;
    background: #fff;
    padding: 12px;
}

.kpi strong {
    display: block;
    font-size: 1.2rem;
}

.kpi span {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 13px;
}

.tabla-wrap {
    margin-top: 16px;
    overflow-x: auto;
    border: 1px solid var(--linea);
    border-radius: 12px;
    background: #fff;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 720px;
}

th,
td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ecf1f5;
    font-size: 14px;
}

th {
    background: #f4f8ff;
    color: #1f4e79;
}

td.num {
    text-align: right;
}

.acciones-secundarias {
    margin-top: 14px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.volver {
    display: inline-block;
    margin-top: 14px;
    color: #1f5d94;
    text-decoration: none;
}

@media (max-width: 900px) {
    .grid,
    .resumen {
        grid-template-columns: 1fr;
    }
}