/* ==========================================================================
   Componentes Visuales Premium
   ========================================================================== */

/* 1. Header Transparente */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 0;
    z-index: var(--z-header);
    transition: var(--transition-smooth);
    background: transparent;
}

.site-header.scrolled {
    background: rgba(8, 8, 8, 0.85);
    backdrop-filter: blur(12px);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container img {
    height: 50px;
    width: auto;
}

/* 2. Hero Section */
.hero {
    position: relative;
    overflow: hidden;
    background: var(--color-dark);
}

.hero-media {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
}

.hero-media img, .hero-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--color-dark) 0%, rgba(8,8,8,0.3) 100%);
    z-index: var(--z-base);
}

.hero .container {
    position: relative;
    z-index: var(--z-content);
}

/* 3. CTA Premium Masterpiece */
.btn-masterpiece {
    display: inline-flex;
    align-items: center;
    gap: 1.5rem;
    color: var(--color-light);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    position: relative;
    padding: 1rem 0;
    overflow: hidden;
    cursor: pointer;
}

.btn-masterpiece-line {
    width: 40px;
    height: 1px;
    background: var(--color-accent);
    transition: width 0.8s cubic-bezier(0.16, 1, 0.3, 1), background 0.4s ease;
}

.btn-masterpiece:hover .btn-masterpiece-line {
    width: 60px;
    background: var(--color-light);
}

.btn-masterpiece svg {
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    color: var(--color-accent);
}

.btn-masterpiece:hover svg {
    transform: translateX(10px);
    color: var(--color-light);
}

.link-masterpiece {
    display: inline-flex;
    align-items: center;
    color: var(--color-text-muted);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color 0.4s ease;
    position: relative;
}

.link-masterpiece::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-text-muted);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.link-masterpiece:hover {
    color: var(--color-light);
}

.link-masterpiece:hover::after {
    transform: scaleX(1);
    transform-origin: left;
    background: var(--color-light);
}

/* Images */
.img-cinematic {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
}

/* ==========================================================================
   MEGA NAVIGATION (Architecture Foundation)
   ========================================================================== */

/* 1. Desktop Nav */
.nav-list {
    display: flex;
    gap: 3rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--color-light);
    font-size: 0.85rem;
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent);
}

.mega-menu-trigger svg {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.mega-menu-trigger.active svg {
    transform: rotate(180deg);
}

/* 2. Mega Menu Overlay */
.mega-menu-overlay {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(4, 4, 4, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 5vh 0;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: calc(var(--z-header) - 1);
}

.mega-menu-overlay.active {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

.mega-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.mega-list a {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    font-family: var(--font-sans);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-block;
}

.mega-list a:hover {
    color: var(--color-light);
    transform: translateX(5px);
}

/* 3. Footer Premium Links */
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-light);
}

.social-link {
    color: var(--color-text-muted);
    transition: color 0.3s ease;
}

.social-link:hover {
    color: var(--color-light);
}

/* 4. Page Transition Overlay */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--color-ultra-dark);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    visibility: visible;
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), visibility 1s;
    pointer-events: none;
}

.page-transition-overlay.is-loaded {
    opacity: 0;
    visibility: hidden;
}

.transition-logo img {
    height: 40px;
    opacity: 0.5;
    animation: pulse 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(0.98); }
    50% { opacity: 0.8; transform: scale(1); }
}

/* 5. Scroll Progress Bar */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--color-accent);
    z-index: 9999;
    transition: width 0.1s ease;
}