:root {
    --color-primario: #1f2d5c;
    --color-acento: #2f6fed;
    --color-fondo: #f5f6fa;
    --color-texto: #1a1a2e;
    --color-borde: #e1e3ea;
    --color-exito: #1e7e34;
    --color-error: #b02a37;
}

* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--color-fondo);
    color: var(--color-texto);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

.contenedor {
    max-width: 760px;
    margin: 0 auto;
    padding: 24px 16px 64px;
}

.cabecera {
    background: var(--color-primario);
    color: #fff;
    padding: 20px 16px;
}

.cabecera h1 {
    max-width: 760px;
    margin: 0 auto;
    font-size: 1.25rem;
    font-weight: 600;
}

.tarjeta {
    background: #fff;
    border: 1px solid var(--color-borde);
    border-radius: 10px;
    padding: 28px;
    margin-bottom: 20px;
}

.tarjeta h2 {
    margin-top: 0;
    font-size: 1.15rem;
}

.texto-contrato {
    max-height: 420px;
    overflow-y: auto;
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    padding: 18px;
    background: #fafbfc;
    font-size: 0.92rem;
}

.texto-contrato p { margin: 0 0 12px; }
.texto-contrato p:first-child { font-weight: 700; text-align: center; }

.campo { margin-bottom: 16px; }
.campo label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 0.9rem; }
.campo input, .campo select, .campo textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-borde);
    border-radius: 6px;
    font-size: 1rem;
}
.campo .ayuda { font-size: 0.8rem; color: #666; margin-top: 4px; }

.boton {
    display: inline-block;
    background: var(--color-acento);
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 12px 22px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
.boton:hover { opacity: 0.92; }
.boton.secundario { background: #fff; color: var(--color-acento); border: 1px solid var(--color-acento); }
.boton.peligro { background: var(--color-error); }

.alerta { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 0.92rem; }
.alerta.error { background: #fdecea; color: var(--color-error); border: 1px solid #f3c2c6; }
.alerta.exito { background: #e8f5e9; color: var(--color-exito); border: 1px solid #c3e6cb; }
.alerta.info { background: #eaf1fb; color: #1f4788; border: 1px solid #cddcf7; }

table.tabla { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.tabla th, table.tabla td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--color-borde); }
table.tabla th { background: #fafbfc; }

.etiqueta-estado { display: inline-block; padding: 2px 10px; border-radius: 12px; font-size: 0.78rem; font-weight: 600; }
.etiqueta-estado.pendiente { background: #fff3cd; color: #856404; }
.etiqueta-estado.enlace_enviado { background: #eaf1fb; color: #1f4788; }
.etiqueta-estado.esperando_codigo { background: #eaf1fb; color: #1f4788; }
.etiqueta-estado.validada { background: #e8f5e9; color: var(--color-exito); }
.etiqueta-estado.caducada { background: #f1f1f1; color: #666; }

.barra-admin { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 10px; }
.barra-admin a { color: var(--color-acento); text-decoration: none; font-weight: 600; font-size: 0.9rem; }

footer.pie { text-align: center; font-size: 0.78rem; color: #888; margin-top: 32px; }