/**
 * Core Structural Layout Engine — Buena Vista Viviendas
 * Handles Global Resets, High-Fidelity Header Navigation, and Secure Compliance Footer Layouts
 * Enforces Rigid Box Containment Framework to Prevent Component Image Blowouts
 */

html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    overflow-x: hidden;
    background-color: #FFFFFF;
    color: #023047;
    box-sizing: border-box;
}

*, *:before, *:after {
    box-sizing: inherit;
}

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

main {
    display: block;
    width: 100%;
    clear: both;
    background-color: #FFFFFF;
}

/* ==========================================================================
   1. HIGH-FIDELITY GLOBAL HEADER NAVIGATION ENGINE (Zero !important)
   ========================================================================== */
header.bv-global-header {
    width: 100%;
    background: #FFFFFF; 
    border-bottom: 1px solid var(--color-border); 
    padding: 24px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1000;
    box-sizing: border-box;
}

header .bv-brand-anchor a {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Alineación milimétrica y prevención de distorsión estructural de aspecto del Logotipo */
header.bv-global-header .bv-logo-img {
    height: 100px; /* Altura de proporción áurea óptima para barras de navegación premium */
    width: auto;
    display: block;
    object-fit: contain;
    transition: transform var(--transition-premium);
    will-change: transform;
}

header.bv-global-header .bv-brand-anchor:hover .bv-logo-img {
    transform: scale(1.02); /* Sofisticada micro-interacción reactiva */
}

header .bv-brand-main {
    font-family: var(--font-display), serif;
    font-size: 1.4rem;
    font-weight: 300;
    letter-spacing: 0.14em;
    color: var(--color-text-main); 
}

header .bv-brand-sub {
    font-family: var(--font-ui), sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-accent); 
}

header .bv-header-navigation-wrap {
    display: flex;
    align-items: center;
    gap: 48px;
}

header .bv-main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: nowrap;
    gap: 32px;
}

header .bv-main-nav li {
    margin: 0;
    padding: 0;
}

header .bv-main-nav a {
    font-family: var(--font-ui), sans-serif;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(2, 48, 71, 0.7); 
    text-decoration: none;
    white-space: nowrap;
    display: inline-block;
    transition: color var(--transition-premium);
}

header .bv-main-nav a:hover,
header .bv-main-nav a.active {
    color: var(--color-accent);
}

header .bv-lang-switcher {
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 1px solid rgba(2, 48, 71, 0.15);
    padding-left: 24px;
}

header .bv-lang-switcher a,
header .bv-lang-switcher span {
    font-family: var(--font-ui), sans-serif;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: rgba(2, 48, 71, 0.4);
    text-decoration: none;
    transition: color 0.2s ease;
    cursor: pointer;
}

header .bv-lang-switcher a:hover,
header .bv-lang-switcher a.active,
header .bv-lang-switcher span.active {
    color: var(--color-text-main);
}

/* ==========================================================================
   2. SECURE COMPLIANCE GLOBAL FOOTER LAYOUT
   ========================================================================== */
footer.bv-global-footer {
    padding: 80px 0 32px 0;
    background: var(--color-text-main); 
    border-top: 1px solid rgba(142, 202, 230, 0.2);
    color: #FFFFFF;
    box-sizing: border-box;
    width: 100%;
    clear: both;
}

footer .bv-footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    box-sizing: border-box;
}

footer .bv-footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1.3fr;
    gap: 48px;
    margin-bottom: 48px;
    align-items: start;
}

footer .bv-footer-column h3, 
footer .bv-footer-column h4 {
    font-family: var(--font-display), serif;
    color: #FFFFFF;
    margin: 0 0 24px 0;
    text-transform: uppercase;
}

footer .bv-footer-column h3 { 
    font-size: 1.2rem; 
    font-weight: 300; 
    letter-spacing: 0.1em; 
}

footer .bv-footer-column h4 { 
    font-size: 0.85rem; 
    font-weight: 700; 
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); 
    padding-bottom: 6px; 
    letter-spacing: 0.05em;
}

footer .bv-footer-contact-vessels {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

footer .bv-footer-contact-vessels li {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

footer .bv-contact-label {
    font-family: var(--font-ui), sans-serif;
    font-size: 11px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 0.06em;
    font-weight: 700;
}

footer .bv-protected-vector {
    font-family: var(--font-ui), sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
    display: inline-flex;
    align-items: center;
    width: fit-content;
}

footer .bv-protected-vector:hover {
    color: var(--color-accent-subtle);
}

footer .bv-footer-column ul { 
    list-style: none; 
    padding: 0; 
    margin: 0; 
    display: flex; 
    flex-direction: column; 
    gap: 10px; 
}

footer .bv-footer-column ul a { 
    font-family: var(--font-ui), sans-serif; 
    font-size: 14px; 
    color: rgba(255, 255, 255, 0.7); 
    text-decoration: none; 
    transition: color 0.2s ease; 
}

footer .bv-footer-column ul a:hover { 
    color: var(--color-accent); 
}

footer .bv-compliance-seal-wrap { 
    background: transparent;
    padding: 0; 
    margin-bottom: 24px; 
    display: block;
    width: 100%;
}

footer .bv-raicv-official-seal {
    width: 160px;
    height: auto;
    display: block;
}

footer .bv-footer-legal-links { 
    flex-direction: row; 
    gap: 16px; 
    flex-wrap: wrap; 
}

footer .bv-footer-legal-links a { 
    font-size: 11px; 
    color: rgba(255, 255, 255, 0.4); 
    text-transform: uppercase; 
    letter-spacing: 0.05em; 
}

footer .bv-footer-base {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-ui), sans-serif;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

footer .bv-copyright { 
    margin: 0; 
}

footer .bv-signature-tag { 
    margin: 0; 
}

footer .bv-signature-tag a { 
    color: #FFFFFF; 
    text-decoration: none; 
    font-weight: 700; 
    transition: color 0.2s ease; 
}

footer .bv-signature-tag a:hover { 
    color: var(--color-accent); 
}

/* ==========================================================================
   2. RESPONSIVE BREAKPOINT INTERCEPTIONS
   ========================================================================== */
@media (max-width: 992px) {
    header.bv-global-header {
        padding: 20px;
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    header .bv-header-navigation-wrap {
        flex-direction: column;
        gap: 16px;
    }
    header .bv-main-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
    header .bv-lang-switcher {
        border-left: none;
        padding-left: 0;
    }
    footer .bv-footer-grid { 
        grid-template-columns: 1fr; 
        gap: 32px; 
    }
    footer .bv-footer-base { 
        flex-direction: column; 
        gap: 12px; 
        text-align: center; 
        align-items: center;
    }
    footer .bv-raicv-official-seal {
        width: 140px;
    }
}

/* ==========================================================================
   MOBILE UX HARDENING — HAMBURGER DRAWER & RESPONSIVE SCALING
   ========================================================================== */

/* Mobile Hamburger Trigger Toggle */
.bv-mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
}

.bv-hamburger-bar {
    width: 24px;
    height: 2px;
    background-color: var(--color-text-main, #023047);
    transition: all 0.3s ease;
}

.bv-mobile-toggle.is-active .bv-hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.bv-mobile-toggle.is-active .bv-hamburger-bar:nth-child(2) {
    opacity: 0;
}
.bv-mobile-toggle.is-active .bv-hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 992px) {
    header.bv-global-header {
        padding: 16px 20px;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    header.bv-global-header .bv-logo-img {
        height: 52px; /* Proportionally optimized for mobile header bar */
    }

    .bv-mobile-toggle {
        display: flex;
    }

    header .bv-header-navigation-wrap {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        border-bottom: 1px solid var(--color-border, #8ecae6);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        display: none;
        box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    }

    header .bv-header-navigation-wrap.is-open {
        display: flex;
    }

    header .bv-main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    header .bv-lang-switcher {
        border-left: none;
        padding-left: 0;
        border-top: 1px solid rgba(2, 48, 71, 0.1);
        padding-top: 16px;
        width: 100%;
        justify-content: center;
    }
}