/* ============================================================
   styles.css — Estilos personalizados de Llave Hipotecaria
   Complementa Tailwind CSS CDN
   ============================================================ */

/* ─── Importación de fuentes de Google ─────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital,wght@0,400;1,400&family=DM+Sans:wght@300;400;500;600;700&display=swap');

/* ─── Variables CSS ─────────────────────────────────────────── */
:root {
    --color-primary:       #1B4D5C;
    --color-primary-light: #2A6B7D;
    --color-primary-dark:  #133545;
    --color-accent:        #E8A020;
    --color-accent-hover:  #D4901A;
    --color-success:       #27AE60;
    --color-text:          #1A1A2E;
    --color-text-light:    #6B7280;
    --color-bg:            #F8F9FA;
    --color-bg-dark:       #0F2830;
}

/* ─── Base ──────────────────────────────────────────────────── */
body {
    font-family: 'DM Sans', sans-serif;
    color: var(--color-text);
}

h1, h2, h3 {
    font-family: 'DM Serif Display', serif;
}

/* ─── Textos de sección ─────────────────────────────────────── */
.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    color: var(--color-text);
}

.section-subtitle {
    color: var(--color-text-light);
    font-size: clamp(1rem, 1.5vw, 1.125rem);
}

/* ─── Navbar ────────────────────────────────────────────────── */
#navbar {
    transition: all 0.3s ease;
}

#navbar.scrolled {
    background: white;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

/* Enlace activo en la navegación */
.nav-link.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* ─── Hero gradient ─────────────────────────────────────────── */
.hero-gradient {
    background: linear-gradient(
        135deg,
        var(--color-bg-dark)    0%,
        var(--color-primary)    60%,
        var(--color-primary-light) 100%
    );
}

/* ─── Botones ───────────────────────────────────────────────── */
/* Botón CTA (acento dorado) */
.btn-cta {
    background: var(--color-accent);
    color: white;
    transition: all 0.2s;
}

.btn-cta:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(232, 160, 32, 0.4);
}

/* Botón primario (verde azulado) */
.btn-primary {
    background: var(--color-primary);
    color: white;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

/* ─── Tarjetas de servicios ─────────────────────────────────── */
.service-card {
    transition: all 0.3s;
    border: 1px solid #e5e7eb;
}

.service-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(27, 77, 92, 0.12);
}

/* ─── Numeración de pasos ───────────────────────────────────── */
.step-number {
    background: var(--color-primary);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'DM Serif Display', serif;
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* ─── FAQ Acordeón ──────────────────────────────────────────── */
.faq-item {
    border-bottom: 1px solid #e5e7eb;
}

/* Animación suave de altura para el contenido del acordeón */
.faq-content {
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-content.open {
    max-height: 600px; /* valor suficientemente alto para cualquier contenido */
}

/* ─── Botón flotante de WhatsApp ────────────────────────────── */
#whatsapp-btn {
    transition: opacity 0.5s ease, transform 0.2s;
}

#whatsapp-btn:hover {
    transform: scale(1.08);
}

/* ─── Tarjetas de testimonios ───────────────────────────────── */
.testimonial-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    padding: 2rem;
}

/* ─── Scrollbar personalizada (WebKit) ──────────────────────── */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}

/* ─── Color de selección de texto ───────────────────────────── */
::selection {
    background: var(--color-primary);
    color: white;
}

::-moz-selection {
    background: var(--color-primary);
    color: white;
}

/* ─── Formularios: ocultar spinners de inputs numéricos ────────── */
/* Chrome, Safari, Edge */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
/* Firefox */
input[type="number"] {
    -moz-appearance: textfield;
}

/* ─── Simulador hipotecario: sliders personalizados ─────────── */
.sim-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #E5E7EB;
    outline: none;
    cursor: pointer;
}

/* Track rellenado (Chrome/Edge/Safari) */
.sim-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 1px 6px rgba(27, 77, 92, 0.35);
    transition: transform 0.15s;
}

.sim-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

/* Track rellenado (Firefox) */
.sim-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 3px solid white;
    box-shadow: 0 1px 6px rgba(27, 77, 92, 0.35);
}

/* ─── Slider de entidades bancarias (carrusel infinito) ─────── */
.bank-slider-wrapper {
    position: relative;
    overflow: hidden;
    width: 100%;
}

/* Desvanecimiento en los bordes */
.bank-slider-wrapper::before,
.bank-slider-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 2;
    pointer-events: none;
}

.bank-slider-wrapper::before {
    left: 0;
    background: linear-gradient(to right, #F8F9FA, transparent);
}

.bank-slider-wrapper::after {
    right: 0;
    background: linear-gradient(to left, #F8F9FA, transparent);
}

.bank-slider {
    overflow: hidden;
    width: 100%;
}

.bank-slider-track {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    animation: bank-scroll 30s linear infinite;
    width: max-content;
}

.bank-slider-track li {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
}

.bank-slider-track li img {
    height: 40px;
    width: auto;
    max-width: 120px;
    object-fit: contain;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all 0.3s ease;
}

.bank-slider-track li img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

@keyframes bank-scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}