/* ═══════════════════════════════════════════════════
   ULUM Valladolid — Cotizador
   Paleta extraída del sitio ulumvalladolid.com
   Estética eco-luxury: selva, orgánico, silencioso
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Montserrat:wght@300;400;500;600&display=swap');

:root {
    /* Verde oliva — color principal */
    --ulum-verde:        #2f3829;
    --ulum-verde-medio:  #2f3829;
    --ulum-verde-claro:  #2f3829;
    --ulum-verde-suave:  #2f3829;

    /* Cremas y tierras */
    --ulum-crema:        #e8e0d0;
    --ulum-crema-claro:  #f2ece2;
    --ulum-crema-oscuro: #d4c9b5;
    --ulum-blanco:       #f5f0e8;

    /* Acento café */
    --ulum-arena:        #8b6914;
    --ulum-arena-claro:  #a07d2e;

    /* Neutros */
    --ulum-texto:        #2f3829;
    --ulum-texto-suave:  #5a6652;
    --ulum-borde:        #d4c9b5;

    --font-titulo: 'Cormorant Garamond', Georgia, serif;
    --font-cuerpo: 'Montserrat', 'Segoe UI', sans-serif;

    --transition: all 0.4s ease;
}

/* ── Reset & Base ───────────────────────────────── */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-cuerpo);
    font-weight: 300;
    color: var(--ulum-texto);
    background-color: var(--ulum-crema-claro);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ── Tipografía ─────────────────────────────────── */

h1, h2, h3, h4, h5 {
    font-family: var(--font-titulo);
    font-weight: 300;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ulum-verde);
}

h1 { font-size: 2.4rem; }
h2 { font-size: 1.8rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.3rem; margin-bottom: 1rem; }

/* ── Layout ─────────────────────────────────────── */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ── Header ─────────────────────────────────────── */

.ulum-header {
    background: var(--ulum-verde);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(196, 165, 90, 0.15);
}

.ulum-header .logo-img {
    height: 28px;
    display: block;
    filter: brightness(0) invert(0.88) sepia(0.08) saturate(0.3);
}

.ulum-header h1 {
    color: var(--ulum-crema-oscuro);
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    font-weight: 400;
    margin-top: 0.2rem;
    opacity: 0.7;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.header-user-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-cuerpo);
}

.header-user-nav .user-name {
    font-size: 0.7rem;
    color: var(--ulum-crema-oscuro);
    letter-spacing: 0.05em;
    opacity: 0.6;
}

.header-user-nav a {
    font-size: 0.6rem;
    color: var(--ulum-crema-oscuro);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 0.3rem 0.7rem;
    transition: var(--transition);
    opacity: 0.5;
}

.header-user-nav a:hover {
    opacity: 1;
}

.header-user-nav a.admin-link {
    border: 1px solid rgba(196, 165, 90, 0.3);
    opacity: 0.8;
    color: var(--ulum-arena);
}

.header-user-nav a.admin-link:hover {
    background: rgba(196, 165, 90, 0.1);
    opacity: 1;
}

/* ── Stepper ────────────────────────────────────── */

.stepper {
    display: flex;
    justify-content: center;
    gap: 0;
    padding: 1.5rem 0 1rem;
    background: var(--ulum-crema-claro);
    border-bottom: 1px solid var(--ulum-borde);
}

.stepper-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 2rem;
    font-family: var(--font-cuerpo);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ulum-crema-oscuro);
    transition: var(--transition);
    position: relative;
    cursor: default;
}

.stepper-item:not(:last-child)::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: var(--ulum-borde);
    margin-left: 1rem;
}

.stepper-item .step-num {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid var(--ulum-borde);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-titulo);
    font-size: 1rem;
    font-weight: 400;
    transition: var(--transition);
    color: var(--ulum-crema-oscuro);
}

.stepper-item.active {
    color: var(--ulum-verde);
}

.stepper-item.active .step-num {
    border-color: var(--ulum-verde);
    color: var(--ulum-verde);
    background: rgba(43, 56, 37, 0.06);
}

.stepper-item.completed .step-num {
    background: var(--ulum-verde);
    border-color: var(--ulum-verde);
    color: var(--ulum-crema);
}

/* ── Secciones de pasos ─────────────────────────── */

.paso-section {
    display: none;
    padding: 3rem 0;
    animation: fadeIn 0.5s ease;
}

.paso-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.paso-titulo {
    text-align: center;
    margin-bottom: 2.5rem;
}

.paso-titulo h2 {
    color: var(--ulum-verde);
}

.paso-titulo p {
    color: var(--ulum-texto-suave);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* ── Grid de lotes ──────────────────────────────── */

.lotes-filtros {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filtro-btn {
    padding: 0.45rem 1.2rem;
    border: 1px solid var(--ulum-borde);
    background: transparent;
    font-family: var(--font-cuerpo);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--ulum-texto-suave);
    cursor: pointer;
    transition: var(--transition);
}

.filtro-btn:hover,
.filtro-btn.active {
    border-color: var(--ulum-verde);
    color: var(--ulum-verde);
    background: rgba(43, 56, 37, 0.04);
}

/* ── Búsqueda avanzada ───────────────────────────── */

.busqueda-avanzada {
    background: rgba(47, 56, 41, 0.04);
    border: 1px solid var(--ulum-borde);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    animation: fadeIn 0.3s ease;
}

.busqueda-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: flex-end;
}

.busqueda-campo {
    flex: 1;
    min-width: 130px;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.busqueda-campo label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ulum-texto-suave);
}

.busqueda-campo input {
    padding: 0.55rem 0.8rem;
    border: 1px solid var(--ulum-borde);
    background: var(--ulum-blanco);
    font-family: var(--font-cuerpo);
    font-size: 0.82rem;
    color: var(--ulum-texto);
    outline: none;
    transition: var(--transition);
}

.busqueda-campo input:focus {
    border-color: var(--ulum-verde);
}

.lotes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.lote-card {
    background: var(--ulum-blanco);
    border: 1px solid var(--ulum-borde);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.lote-card:hover {
    border-color: var(--ulum-verde-suave);
    background: rgba(43, 56, 37, 0.02);
}

.lote-card.seleccionado {
    border-color: var(--ulum-verde);
    background: rgba(43, 56, 37, 0.06);
}

.lote-card.seleccionado::after {
    content: '✓';
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 22px;
    height: 22px;
    background: var(--ulum-verde);
    color: var(--ulum-crema);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
}

.lote-card.reservado {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

.lote-card .lote-id {
    font-family: var(--font-titulo);
    font-size: 1.3rem;
    letter-spacing: 0.08em;
    color: var(--ulum-verde);
    margin-bottom: 0.5rem;
}

.lote-card .lote-tipo {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ulum-verde-suave);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.lote-card .lote-dato {
    font-size: 0.78rem;
    color: var(--ulum-texto-suave);
    margin-bottom: 0.2rem;
}

.lote-card .lote-dato strong {
    color: var(--ulum-texto);
    font-weight: 500;
}

.lote-card .lote-precio {
    font-family: var(--font-titulo);
    font-size: 1.15rem;
    color: var(--ulum-verde);
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--ulum-borde);
}

.lote-card .lote-badge {
    display: inline-block;
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.2rem 0.5rem;
    margin-top: 0.5rem;
}

.lote-badge.disponible {
    color: var(--ulum-verde-suave);
    border: 1px solid var(--ulum-verde-suave);
}

.lote-badge.reservado {
    color: var(--ulum-texto-suave);
    border: 1px solid var(--ulum-borde);
}

/* ── Plan de pago ───────────────────────────────── */

.planes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

@media (max-width: 600px) {
    .planes-grid { grid-template-columns: repeat(2, 1fr); }
}

.plan-card {
    border: 1px solid var(--ulum-borde);
    padding: 1.5rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--ulum-blanco);
}

.plan-card:hover {
    border-color: var(--ulum-verde-suave);
}

.plan-card.seleccionado {
    border-color: var(--ulum-verde);
    background: rgba(43, 56, 37, 0.06);
}

.plan-card .plan-nombre {
    font-family: var(--font-titulo);
    font-size: 1.6rem;
    color: var(--ulum-verde);
    margin-bottom: 0.2rem;
}

.plan-card .plan-desc {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ulum-texto-suave);
}

.plan-card .plan-descuento {
    font-family: var(--font-titulo);
    font-size: 1rem;
    color: var(--ulum-arena);
    margin-top: 0.75rem;
}

/* ── Apartado checkbox ──────────────────────────── */

.apartado-section {
    max-width: 500px;
    margin: 0 auto 2rem;
}

/* ── Slider enganche ────────────────────────────── */

.enganche-section {
    max-width: 500px;
    margin: 0 auto 2rem;
    display: none;
}

.enganche-section.visible {
    display: block;
}

.enganche-label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1rem;
}

.enganche-label span {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ulum-texto-suave);
}

.enganche-label .enganche-valor {
    font-family: var(--font-titulo);
    font-size: 1.8rem;
    color: var(--ulum-verde);
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 2px;
    background: var(--ulum-borde);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--ulum-verde);
    cursor: pointer;
    border: 3px solid var(--ulum-crema-claro);
    box-shadow: 0 0 0 1px var(--ulum-verde);
}

input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--ulum-verde);
    cursor: pointer;
    border: 3px solid var(--ulum-crema-claro);
    box-shadow: 0 0 0 1px var(--ulum-verde);
}

/* ── Formulario cliente ─────────────────────────── */

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    max-width: 700px;
    margin: 0 auto 2rem;
}

@media (max-width: 600px) {
    .form-grid { grid-template-columns: 1fr; }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ulum-texto-suave);
    font-weight: 400;
}

.form-group input,
.form-group select {
    padding: 0.8rem 1rem;
    border: 1px solid var(--ulum-borde);
    background: var(--ulum-blanco);
    font-family: var(--font-cuerpo);
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--ulum-texto);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--ulum-verde);
}

.form-group input::placeholder {
    color: var(--ulum-crema-oscuro);
}

.form-error {
    font-size: 0.65rem;
    color: #8b5e3c;
    display: none;
}

.form-group.error input {
    border-color: #8b5e3c;
}

.form-group.error .form-error {
    display: block;
}

/* ── Preview financiero ─────────────────────────── */

.layout-resumen {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 3rem;
    align-items: start;
}

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

.preview-financiero {
    background: var(--ulum-verde);
    color: var(--ulum-crema);
    padding: 2rem;
    position: sticky;
    top: 2rem;
}

.preview-financiero h3 {
    color: var(--ulum-arena);
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(196, 165, 90, 0.2);
}

.preview-linea {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 0.35rem 0;
    font-size: 0.82rem;
}

.preview-linea .label {
    color: rgba(232, 224, 208, 0.55);
    font-weight: 300;
}

.preview-linea .valor {
    font-family: var(--font-titulo);
    font-size: 1.05rem;
    color: var(--ulum-crema);
}

.preview-linea.descuento .valor {
    color: var(--ulum-arena);
}

.preview-divider {
    border: none;
    border-top: 1px solid rgba(232, 224, 208, 0.1);
    margin: 0.6rem 0;
}

.preview-linea.total {
    padding: 0.6rem 0;
}

.preview-linea.total .label {
    color: var(--ulum-crema);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.7rem;
}

.preview-linea.total .valor {
    font-size: 1.4rem;
    color: var(--ulum-arena);
}

.preview-linea.highlight {
    background: rgba(196, 165, 90, 0.1);
    margin: 0.2rem -1rem;
    padding: 0.5rem 1rem;
}

.preview-linea .sub-label {
    color: rgba(232, 224, 208, 0.35);
    font-size: 0.72rem;
    padding-left: 1rem;
}

/* ── Tabla de pagos ─────────────────────────────── */

.tabla-pagos-wrapper {
    overflow-x: auto;
    margin: 2rem 0;
}

.tabla-pagos {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.tabla-pagos thead th {
    font-family: var(--font-cuerpo);
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ulum-texto-suave);
    font-weight: 400;
    text-align: left;
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--ulum-borde);
}

.tabla-pagos tbody tr {
    transition: var(--transition);
}

.tabla-pagos tbody tr:nth-child(even) {
    background: rgba(43, 56, 37, 0.03);
}

.tabla-pagos tbody td {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--ulum-borde);
    color: var(--ulum-texto);
}

.tabla-pagos tbody tr.fila-destacada {
    background: var(--ulum-verde);
}

.tabla-pagos tbody tr.fila-destacada td {
    color: var(--ulum-arena);
    font-weight: 400;
    border-bottom-color: rgba(196, 165, 90, 0.15);
}

.tabla-pagos .col-monto {
    font-family: var(--font-titulo);
    font-size: 1rem;
    text-align: right;
}

.tabla-pagos .col-saldo {
    text-align: right;
    color: var(--ulum-texto-suave);
}

/* ── Botones ────────────────────────────────────── */

.btn-row {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 2.2rem;
    font-family: var(--font-cuerpo);
    font-size: 0.68rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--ulum-verde);
    color: var(--ulum-crema);
}

.btn-primary:hover {
    background: var(--ulum-verde-medio);
}

.btn-secondary {
    background: transparent;
    color: var(--ulum-texto-suave);
    border: 1px solid var(--ulum-borde);
}

.btn-secondary:hover {
    border-color: var(--ulum-verde);
    color: var(--ulum-verde);
}

.btn-dark {
    background: var(--ulum-verde);
    color: var(--ulum-arena);
    border: 1px solid rgba(196, 165, 90, 0.2);
}

.btn-dark:hover {
    background: var(--ulum-verde-medio);
}

.btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

/* ── Footer ─────────────────────────────────────── */

.ulum-footer {
    background: var(--ulum-verde);
    color: rgba(232, 224, 208, 0.35);
    text-align: center;
    padding: 2rem 0;
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-top: 4rem;
    border-top: 1px solid rgba(196, 165, 90, 0.1);
}

/* ── Lotes seleccionados (tags) ─────────────────── */

.lotes-seleccionados-bar {
    background: rgba(43, 56, 37, 0.05);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    border: 1px solid var(--ulum-borde);
}

.lotes-seleccionados-bar:empty {
    display: none;
}

.lotes-seleccionados-bar .tag-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--ulum-texto-suave);
}

.lote-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.7rem;
    background: var(--ulum-blanco);
    border: 1px solid var(--ulum-verde-suave);
    font-size: 0.72rem;
    font-family: var(--font-titulo);
    letter-spacing: 0.05em;
    color: var(--ulum-verde);
}

.lote-tag .remove {
    cursor: pointer;
    color: var(--ulum-texto-suave);
    font-size: 0.9rem;
    line-height: 1;
}

.lote-tag .remove:hover {
    color: var(--ulum-verde);
}

/* ── Resumen Paso 4 ─────────────────────────────── */

.resumen-header {
    text-align: center;
    margin-bottom: 3rem;
}

.resumen-header .folio {
    font-family: var(--font-titulo);
    font-size: 1rem;
    color: var(--ulum-arena);
    letter-spacing: 0.2em;
    margin-top: 0.5rem;
}

.resumen-datos-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

@media (max-width: 700px) {
    .resumen-datos-grid { grid-template-columns: 1fr; }
}

.resumen-bloque {
    padding: 1.5rem;
    border: 1px solid var(--ulum-borde);
    background: var(--ulum-blanco);
}

.resumen-bloque h3 {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--ulum-verde-suave);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--ulum-borde);
}

.resumen-bloque .dato {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
    font-size: 0.82rem;
}

.resumen-bloque .dato .label {
    color: var(--ulum-texto-suave);
}

/* ── Utilidades ─────────────────────────────────── */

.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.hidden { display: none !important; }

/* ── Responsive ─────────────────────────────────── */

@media (max-width: 768px) {
    .container { padding: 0 1rem; }
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.4rem; }
    .lotes-grid {
        grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
        gap: 0.75rem;
    }
    .stepper { flex-wrap: wrap; gap: 0.25rem; }
    .stepper-item { padding: 0.5rem 0.75rem; font-size: 0.6rem; }
    .stepper-item:not(:last-child)::after { width: 15px; }
    .preview-financiero { position: static; }
}

/* ── Spinner ────────────────────────────────────── */

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--ulum-borde);
    border-top-color: var(--ulum-crema);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Checkbox styling ───────────────────────────── */

input[type="checkbox"] {
    accent-color: var(--ulum-verde);
}