/* =====================================================================
   GasteizBus — hoja de estilos del formulario de alta

   Se carga SOLO en la página de alta, desde pages/alta.php.

   Por qué existe como fichero aparte: el formulario de alta se trajo tal
   cual de la web anterior, con su marcado y sus clases (.form-group,
   .contract-*), porque es código probado que mueve dinero y firmas. Esta
   hoja re-viste esas clases con los tokens del diseño nuevo en lugar de
   reescribir el HTML, que es donde estaría el riesgo.

   Todo va acotado a #alta-form o a .contract-document para que no se
   mezcle con el sistema de formularios nuevo (.field), que usan las demás
   páginas.
   ===================================================================== */

/* ---------- Rejilla de la página de alta ---------- */
.alta-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: clamp(1.5rem, 1rem + 2vw, 2.75rem);
    align-items: start;
}
@media (max-width: 992px) {
    .alta-grid { grid-template-columns: 1fr; }
}

.alta-aside { position: sticky; top: 96px; }
@media (max-width: 992px) {
    .alta-aside { position: static; }
}

/* ---------- Campos heredados del formulario antiguo ---------- */
#alta-form .form-group { margin-bottom: 1.35rem; }

#alta-form label {
    display: block;
    margin-bottom: .4rem;
    font-size: .88rem;
    font-weight: 600;
    color: var(--gris-700);
}

#alta-form input[type="text"],
#alta-form input[type="email"],
#alta-form input[type="tel"],
#alta-form input[type="date"],
#alta-form input[type="file"],
#alta-form select,
#alta-form textarea {
    width: 100%;
    padding: .78rem .9rem;
    font-family: inherit;
    font-size: .96rem;
    color: var(--texto);
    background: var(--blanco);
    border: 1px solid var(--gris-300);
    border-radius: var(--radio-sm);
    transition: border-color var(--trans), box-shadow var(--trans);
}
#alta-form input:focus,
#alta-form select:focus,
#alta-form textarea:focus {
    outline: none;
    border-color: var(--azul-500);
    box-shadow: 0 0 0 3px var(--azul-100);
}
#alta-form input[type="file"] { padding: .6rem .9rem; background: var(--gris-100); }
#alta-form input[type="checkbox"] { width: auto; accent-color: var(--azul-500); }

#alta-form .grid.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
    gap: 0 1.15rem;
}

#alta-form small { color: var(--gris-600); }

/* ---------- Estados de validación ---------- */
#alta-form input.is-invalid,
#alta-form select.is-invalid {
    border-color: #c0392b;
    background-color: #fdf4f3;
}
#alta-form input.is-invalid:focus,
#alta-form select.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(192, 57, 43, .18);
}
#signature-container.is-invalid {
    border-color: #c0392b !important;
    background-color: #fdf4f3 !important;
}
#lopd-container.is-invalid {
    border-color: #c0392b !important;
    background-color: #fdf4f3 !important;
}

.form-error-alert {
    display: none;
    padding: 1rem 1.2rem;
    margin-bottom: 1.5rem;
    background: #fdecea;
    border: 1px solid #f5b7b1;
    border-left: 4px solid #c0392b;
    border-radius: var(--radio-sm);
    color: #a33025;
    font-size: .93rem;
    font-weight: 600;
}

/* ---------- Documento de contrato ---------- */
.contract-document {
    margin: 1.75rem 0;
    padding: clamp(1.25rem, 1rem + 1vw, 1.9rem);
    background: var(--blanco);
    border: 1px solid var(--borde);
    border-top: 4px solid var(--azul-800);
    border-radius: var(--radio);
    box-shadow: var(--sombra-sm);
    font-size: .88rem;
    line-height: 1.5;
    color: var(--texto);
}

.contract-document-header {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: space-between;
    align-items: center;
    padding-bottom: .9rem;
    margin-bottom: 1.35rem;
    border-bottom: 2px solid var(--borde);
}
.contract-document-title {
    margin: 0;
    font-family: var(--fuente-titulo);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--azul-800);
}
.contract-document-subtitle {
    font-size: .7rem;
    font-weight: 600;
    line-height: 1.45;
    text-align: right;
    text-transform: uppercase;
    color: var(--gris-600);
}

.contract-section-title {
    margin: 1.4rem 0 .7rem;
    padding: .45rem .75rem;
    background: var(--azul-050);
    border-left: 3px solid var(--azul-500);
    border-radius: 0 var(--radio-sm) var(--radio-sm) 0;
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--azul-700);
}

.contract-field-grid {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: .4rem .9rem;
    margin-bottom: 1.1rem;
    padding: 0 .3rem;
}
@media (max-width: 576px) {
    .contract-field-grid { grid-template-columns: 1fr; gap: .15rem; }
}
.contract-field-label { color: var(--gris-600); font-weight: 600; }
.contract-field-value { color: var(--gris-900); font-weight: 700; overflow-wrap: anywhere; }

.contract-clause-title {
    margin: .85rem 0 .25rem;
    font-size: .78rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--azul-800);
}
.contract-clause-text {
    margin-bottom: .8rem;
    font-size: .74rem;
    line-height: 1.5;
    color: var(--texto-suave);
}
.contract-clause-text ul { list-style: disc; }

/* ---------- Bloque de firma ---------- */
.contract-signature-block {
    display: flex;
    gap: 1.35rem;
    align-items: stretch;
    margin-top: 1.1rem;
}
@media (max-width: 768px) {
    .contract-signature-block { flex-direction: column; }
}
.contract-signature-text {
    flex: 1;
    font-size: .74rem;
    line-height: 1.5;
    color: var(--texto-suave);
}
.contract-signature-pad-wrapper {
    display: flex;
    flex-direction: column;
    gap: .45rem;
    width: 300px;
    flex-shrink: 0;
}
@media (max-width: 768px) {
    .contract-signature-pad-wrapper { width: 100%; }
}
.contract-canvas-container {
    position: relative;
    height: 160px;
    background: var(--gris-100);
    border: 2px dashed var(--gris-300);
    border-radius: var(--radio-sm);
    transition: border-color var(--trans), background var(--trans);
}
.contract-canvas-container canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: crosshair;
    touch-action: none;
}
.contract-sig-label {
    font-size: .72rem;
    font-style: italic;
    text-align: center;
    color: var(--gris-600);
}

.signature-placeholder {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    user-select: none;
    font-family: var(--fuente-titulo);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-align: center;
    color: var(--gris-300);
    transition: opacity var(--trans), visibility var(--trans);
}
.signature-placeholder.hidden { opacity: 0; visibility: hidden; }

/* ---------- Bloques informativos del formulario ---------- */
.form-section-documentos {
    margin-top: 1.75rem;
    padding: 1.4rem;
    background: var(--blanco);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
}
.form-section-documentos h4 {
    margin: 0 0 .35rem;
    font-size: .95rem;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--azul-800);
}

#lopd-container {
    padding: 1rem 1.2rem;
    background: var(--gris-100);
    border: 1px solid transparent;
    border-radius: var(--radio-sm);
    transition: border-color var(--trans), background var(--trans);
}
#lopd-container label {
    display: flex;
    gap: .65rem;
    align-items: flex-start;
    margin: 0;
    font-weight: 400;
    cursor: pointer;
}

#ruta-info-container,
#ruta-error-container,
#precio-no-disponible-aviso,
#payment-disclaimer {
    border-radius: var(--radio-sm) !important;
}

#alta-form button[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-top: 1.5rem;
    padding: .95rem 1.6rem;
    font-family: var(--fuente-titulo);
    font-size: 1.02rem;
    font-weight: 700;
    letter-spacing: .03em;
    color: var(--blanco);
    background: var(--azul-800);
    border: 2px solid transparent;
    border-radius: var(--radio-sm);
    box-shadow: var(--sombra-sm);
    cursor: pointer;
    transition: background var(--trans), transform var(--trans), box-shadow var(--trans);
}
#alta-form button[type="submit"]:hover:not(:disabled) {
    background: var(--azul-700);
    transform: translateY(-2px);
    box-shadow: var(--sombra);
}
#alta-form button[type="submit"]:disabled {
    background: var(--gris-500);
    cursor: not-allowed;
    transform: none;
}