/* ==========================================================
   LOGÍSTICA TENAZ — Landing Page
   Paleta: tonos arena predominantes
   ========================================================== */

/* ---------- Variables CSS (paleta arena) ---------- */
:root {
    /* Arena */
    --arena-50:  #FBF6EC;
    --arena-100: #F5EBD6;
    --arena-200: #E8D5B7;
    --arena-300: #D4B896;
    --arena-400: #B8946B;
    --arena-500: #8B6F47;

    /* Acentos tierra */
    --tierra:    #A0522D;   /* sienna — CTAs principales */
    --tierra-d:  #7B3F1E;   /* hover */

    /* Neutros cálidos */
    --texto:     #3D2F1F;   /* marrón muy oscuro */
    --texto-mid: #6B5640;
    --blanco:    #FFFFFF;

    /* Sombras */
    --sombra-sm: 0 2px 8px rgba(61, 47, 31, 0.08);
    --sombra-md: 0 6px 20px rgba(61, 47, 31, 0.12);
    --sombra-lg: 0 12px 32px rgba(61, 47, 31, 0.18);

    /* Otros */
    --radius:    12px;
    --radius-lg: 20px;
    --trans:     0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    scrollbar-width: thin;
    scrollbar-color: var(--arena-300) var(--arena-50);
}

/* Scrollbar fino en navegadores WebKit (Chrome, Edge, Safari) */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background-color: var(--arena-50);
}

::-webkit-scrollbar-thumb {
    background-color: var(--arena-300);
    border-radius: 999px;
    border: 2px solid var(--arena-50);
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--arena-400);
}

body {
    font-family: 'Poppins', system-ui, -apple-system, sans-serif;
    font-weight: 400;
    color: var(--texto);
    background-color: var(--arena-50);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--trans);
}

ul { list-style: none; }

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Navbar ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(251, 246, 236, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--sombra-sm);
    transition: background-color var(--trans), box-shadow var(--trans);
}

.navbar.scrolled {
    background-color: rgba(251, 246, 236, 0.98);
    box-shadow: var(--sombra-md);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.nav-logo img {
    height: 52px;
    width: auto;
}

.nav-list {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-link {
    display: inline-block;
    padding: 10px 18px;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--texto);
    border-radius: 999px;
    transition: background-color var(--trans), color var(--trans);
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--arena-200);
    color: var(--tierra);
}

/* Hamburguesa (móvil) */
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    position: relative;
    border-radius: 8px;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 26px;
    height: 3px;
    background-color: var(--texto);
    border-radius: 2px;
    position: absolute;
    left: 9px;
    transition: transform var(--trans), top var(--trans), opacity var(--trans);
}

.hamburger             { top: 21px; }
.hamburger::before     { content: ''; top: -8px; }
.hamburger::after      { content: ''; top:  8px; }

.nav-toggle[aria-expanded="true"] .hamburger             { background-color: transparent; }
.nav-toggle[aria-expanded="true"] .hamburger::before     { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .hamburger::after      { top: 0; transform: rotate(-45deg); }

/* ---------- 1. Portada (Hero) ---------- */
.portada {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background:
        linear-gradient(135deg, rgba(232, 213, 183, 0.85) 0%, rgba(184, 148, 107, 0.85) 100%),
        url('../images/experiencia.jpg') center/cover no-repeat;
    color: var(--blanco);
    padding: 24px;
    overflow: hidden;
}

.portada-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(61, 47, 31, 0.25) 0%, rgba(61, 47, 31, 0.55) 100%);
}

.portada-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    animation: fadeUp 1s ease both;
}

.portada-logo {
    width: clamp(140px, 22vw, 220px);
    height: auto;
    margin: 0 auto 24px;
    filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.35));
}

.portada-titulo {
    font-size: clamp(2rem, 5.5vw, 3.8rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 16px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.portada-subtitulo {
    font-size: clamp(1rem, 2.2vw, 1.25rem);
    font-weight: 300;
    margin-bottom: 36px;
    opacity: 0.95;
}

/* Botones genéricos */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 999px;
    transition: transform var(--trans), background-color var(--trans), box-shadow var(--trans);
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background-color: var(--tierra);
    color: var(--blanco);
    box-shadow: var(--sombra-md);
}

.btn-primary:hover {
    background-color: var(--tierra-d);
    box-shadow: var(--sombra-lg);
}

.btn-whatsapp {
    background-color: #25D366;
    color: var(--blanco);
    box-shadow: var(--sombra-md);
    font-size: 1.05rem;
    padding: 16px 36px;
}

.btn-whatsapp:hover {
    background-color: #1ebe5a;
    box-shadow: var(--sombra-lg);
}

.btn-secondary {
    background-color: var(--arena-200);
    color: var(--texto);
    border: 2px solid var(--arena-300);
}

.btn-secondary:hover {
    background-color: var(--arena-300);
}

/* ---------- Títulos de sección ---------- */
.section-titulo {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--texto);
    text-align: center;
    margin-bottom: 8px;
    position: relative;
    padding-bottom: 16px;
}

.section-titulo::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--tierra);
    border-radius: 2px;
}

.section-subtitulo {
    text-align: center;
    font-size: 1.05rem;
    color: var(--texto-mid);
    margin-bottom: 56px;
    font-weight: 300;
}

/* ---------- 2. Quiénes somos ---------- */
.quienes-somos {
    padding: 96px 0;
    background-color: var(--blanco);
}

.valores-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.valor-card {
    background-color: var(--arena-50);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--sombra-sm);
    transition: transform var(--trans), box-shadow var(--trans);
    display: flex;
    flex-direction: column;
}

.valor-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sombra-lg);
}

.valor-imagen {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background-color: var(--arena-200);
}

.valor-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.valor-card:hover .valor-imagen img {
    transform: scale(1.06);
}

.valor-texto {
    padding: 24px 22px 28px;
    flex: 1;
}

.valor-titulo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tierra);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.valor-texto p {
    color: var(--texto-mid);
    font-size: 0.95rem;
    line-height: 1.65;
}

/* ---------- 3. Servicio ---------- */
.servicio {
    padding: 96px 0;
    background: linear-gradient(180deg, var(--arena-50) 0%, var(--arena-100) 100%);
}

.precios-wrapper {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    align-items: end;
    margin-bottom: 56px;
}

/* Visualización del descenso de precio — cada tarjeta es más baja */
.precio-card {
    position: relative;
    background-color: var(--blanco);
    border-radius: var(--radius);
    padding: 32px 22px 26px;
    text-align: center;
    box-shadow: var(--sombra-sm);
    border: 2px solid transparent;
    transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
    overflow: hidden;
}

/* Alturas descendentes para graficar la bajada de precio */
.precio-1 { min-height: 340px; }
.precio-2 { min-height: 310px; }
.precio-3 { min-height: 280px; }
.precio-4 { min-height: 250px; }

.precio-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sombra-lg);
}

.precio-card.precio-4 {
    border-color: var(--tierra);
    background: linear-gradient(180deg, var(--blanco) 0%, var(--arena-100) 100%);
}

.precio-barra {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background-color: var(--arena-300);
}

.precio-card.precio-4 .precio-barra {
    background-color: var(--tierra);
}

.precio-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--texto-mid);
    background-color: var(--arena-100);
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.precio-card.precio-4 .precio-tag {
    background-color: var(--tierra);
    color: var(--blanco);
}

.precio-nombre {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--texto);
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.precio-monto {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 800;
    color: var(--tierra);
    line-height: 1;
}

.precio-moneda {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--texto-mid);
    letter-spacing: 2px;
    margin-bottom: 18px;
}

.precio-condicion {
    font-size: 0.85rem;
    color: var(--texto-mid);
    line-height: 1.5;
}

.servicio-cta {
    text-align: center;
}

.servicio-cta-texto {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--texto);
    margin-bottom: 20px;
}

/* ---------- 4. Ubicación ---------- */
.ubicacion {
    padding: 96px 0;
    background-color: var(--blanco);
}

.ubicacion-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 32px;
    align-items: stretch;
}

.ubicacion-mapa {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--sombra-md);
    min-height: 440px;
    background-color: var(--arena-200);
}

.ubicacion-mapa iframe {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 440px;
}

.ubicacion-info {
    background-color: var(--arena-100);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 22px;
}

.ubicacion-info-titulo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--texto);
    margin-bottom: 4px;
}

.ubicacion-dato {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.ubicacion-icono {
    font-size: 1.4rem;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background-color: var(--arena-200);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ubicacion-dato strong {
    display: block;
    color: var(--tierra);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.ubicacion-dato p {
    color: var(--texto);
    font-size: 0.95rem;
}

.ubicacion-dato a {
    color: var(--texto);
    border-bottom: 1px solid var(--arena-300);
}

.ubicacion-dato a:hover {
    color: var(--tierra);
    border-bottom-color: var(--tierra);
}

/* ---------- 5. Aviso de Privacidad ---------- */
.privacidad {
    padding: 96px 0;
    background: linear-gradient(180deg, var(--arena-100) 0%, var(--arena-50) 100%);
}

.privacidad-card {
    background-color: var(--blanco);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    box-shadow: var(--sombra-sm);
    max-width: 900px;
    margin: 0 auto;
    border-left: 5px solid var(--tierra);
}

.privacidad-card p {
    color: var(--texto-mid);
    font-size: 0.92rem;
    line-height: 1.75;
    margin-bottom: 14px;
}

.privacidad-card p:last-child {
    margin-bottom: 0;
}

.privacidad-card strong {
    color: var(--texto);
}

.privacidad-card a {
    color: var(--tierra);
    border-bottom: 1px solid var(--arena-300);
}

.privacidad-card a:hover {
    border-bottom-color: var(--tierra);
}

.privacidad-actualizado {
    font-size: 0.8rem !important;
    color: var(--texto-mid) !important;
    margin-bottom: 18px !important;
}

/* ---------- Footer ---------- */
.footer {
    background-color: var(--arena-500);
    color: var(--arena-100);
    padding: 64px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--blanco);
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.footer-logo {
    height: 56px;
    width: auto;
    margin-bottom: 14px;
    background-color: var(--arena-100);
    padding: 6px 12px;
    border-radius: 8px;
}

.footer-col p {
    font-size: 0.9rem;
    color: var(--arena-100);
    line-height: 1.65;
}

.footer-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--arena-100);
    font-size: 0.95rem;
    padding: 6px 0;
    transition: color var(--trans), transform var(--trans);
}

.footer-link:hover {
    color: var(--blanco);
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 20px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--arena-200);
}

/* ---------- Botón flotante WhatsApp ---------- */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: var(--blanco);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: transform var(--trans), box-shadow var(--trans);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 28px rgba(37, 211, 102, 0.55);
}

/* ---------- Animaciones ---------- */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4), 0 0 0 0 rgba(37, 211, 102, 0.5);
    }
    50% {
        box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4), 0 0 0 14px rgba(37, 211, 102, 0);
    }
}

/* Estado inicial de tarjetas — animación de entrada */
.valor-card,
.precio-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow var(--trans);
}

.valor-card.visible,
.precio-card.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */

/* Tablet */
@media (max-width: 1024px) {
    .valores-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .precios-wrapper {
        grid-template-columns: repeat(2, 1fr);
        align-items: stretch;
    }

    .precio-1, .precio-2, .precio-3, .precio-4 {
        min-height: 280px;
    }

    .ubicacion-grid {
        grid-template-columns: 1fr;
    }

    .ubicacion-mapa,
    .ubicacion-mapa iframe {
        min-height: 380px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Móvil */
@media (max-width: 768px) {
    .nav-list {
        position: fixed;
        top: 76px;
        right: 0;
        flex-direction: column;
        background-color: var(--arena-50);
        width: 100%;
        max-width: 320px;
        height: calc(100vh - 76px);
        padding: 24px;
        gap: 4px;
        box-shadow: var(--sombra-lg);
        transform: translateX(100%);
        transition: transform var(--trans);
    }

    .nav-list.abierto {
        transform: translateX(0);
    }

    .nav-link {
        display: block;
        width: 100%;
        padding: 14px 18px;
        font-size: 1rem;
        border-radius: 12px;
    }

    .nav-toggle {
        display: block;
    }

    .quienes-somos,
    .servicio,
    .ubicacion,
    .privacidad {
        padding: 64px 0;
    }

    .section-subtitulo {
        margin-bottom: 40px;
    }

    .valores-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .precios-wrapper {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .precio-1, .precio-2, .precio-3, .precio-4 {
        min-height: auto;
    }

    .ubicacion-info {
        padding: 28px 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-col .footer-link,
    .footer-col p {
        justify-content: center;
    }

    .footer-logo {
        margin-left: auto;
        margin-right: auto;
    }

    .whatsapp-float {
        bottom: 16px;
        right: 16px;
        width: 56px;
        height: 56px;
    }
}

/* Móvil pequeño */
@media (max-width: 480px) {
    .portada-titulo {
        font-size: 1.85rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }

    .privacidad-card {
        padding: 28px 22px;
    }
}