/* 
   Lumina Specula - Design System
   Aesthetics: Minimalist, Modern, Elegant
*/

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Plus+Jakarta+Sans:wght@300;400;600&family=Great+Vibes&display=swap');

/* ========== LIGHT MODE (Default) ========== */
:root {
    --bg-color: #FAF9F6;
    --primary-gold: #C5A02F;
    --text-color: #1A1C1A;
    --text-muted: #4D4636;
    --surface-low: #F4F3F1;
    --surface-lowest: #FFFFFF;
    --glass-bg: rgba(250, 249, 246, 0.55);
    --transition-smooth: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-script: 'Great Vibes', cursive;
}

/* ========== DARK MODE ========== */
body.dark-mode {
    --bg-color: #0D0D0D;
    --text-color: #F0ECE3;
    --text-muted: #A89F91;
    --surface-low: #1A1A1A;
    --surface-lowest: #141414;
    --glass-bg: rgba(13, 13, 13, 0.55);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 400;
}

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

/* ========== HEADER & NAV ========== */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    transition: var(--transition-smooth);
}

header.scrolled {
    padding: 0.8rem 5%;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
}

header.scrolled .logo img {
    height: 40px;
}

header.scrolled .brand-main {
    font-size: 1rem;
}

header.scrolled .brand-sub {
    font-size: 1.1rem;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1;
}

.logo img {
    height: 60px;
    margin-right: 0.5rem;
    transition: var(--transition-smooth);
}

.brand-wrapper {
    text-align: center;
}

.brand-main {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    letter-spacing: 0.1em;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-color);
}

.brand-sub {
    font-family: var(--font-script);
    font-size: 1.6rem;
    color: var(--primary-gold);
    margin-top: -5px;
    letter-spacing: 0.05em;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

nav ul li a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
}

nav ul li a:hover {
    color: var(--primary-gold);
}

/* ========== HEADER ACTIONS (Theme, Lang, CTA) ========== */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--text-muted);
    color: var(--text-color);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 0.9rem;
}

.theme-toggle:hover {
    border-color: var(--primary-gold);
    color: var(--primary-gold);
    transform: rotate(20deg);
}

/* Language Selector */
.lang-selector {
    position: relative;
}

.lang-btn {
    background: none;
    border: 1px solid var(--text-muted);
    color: var(--text-color);
    padding: 0.4rem 0.7rem;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.lang-btn:hover {
    border-color: var(--primary-gold);
    color: var(--primary-gold);
}

.lang-btn i {
    font-size: 0.85rem;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--surface-lowest);
    border: 1px solid var(--surface-low);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition-smooth);
    min-width: 140px;
    z-index: 1001;
}

.lang-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.7rem 1rem;
    border: none;
    background: none;
    color: var(--text-color);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.85rem;
    transition: background 0.3s;
}

.lang-option:hover {
    background: var(--surface-low);
}

.lang-option.active {
    color: var(--primary-gold);
    font-weight: 600;
}

/* btn-minimal (COTIZAR) */
.btn-minimal {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-weight: 600;
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--text-color);
    transition: var(--transition-smooth);
}

.btn-minimal:hover {
    background: var(--primary-gold);
    border-color: var(--primary-gold);
    color: white;
}

/* ========== HERO SECTION ========== */
.hero {
    height: 100vh;
    width: 100%;
    background: linear-gradient(rgba(0,0,0,0.1), rgba(0,0,0,0.1)), url('assets/hero.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
    color: white;
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.15);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1.2s forwards 0.5s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
    letter-spacing: 0.05em;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--primary-gold);
    color: white;
    font-weight: 600;
    letter-spacing: 0.1em;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background: #A68726;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(117, 91, 0, 0.2);
}

/* ========== GALLERY SECTION ========== */
.gallery {
    padding: 10rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    margin-bottom: 6rem;
}

.section-title h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-title .underline {
    width: 50px;
    height: 2px;
    background: var(--primary-gold);
    margin: 0 auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 4rem;
}

/* Gallery Items */
.gallery-item {
    background: var(--surface-lowest);
    padding: 1rem;
    transition: var(--transition-smooth);
    box-shadow: 0 20px 40px rgba(0,0,0,0.02);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.05);
}

.image-container {
    height: 450px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    background: var(--surface-low);
    position: relative;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s cubic-bezier(0.23, 1, 0.32, 1);
}

.gallery-item:hover .image-container img {
    transform: scale(1.05);
}

/* Image Overlay */
.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    pointer-events: none;
}

.image-overlay i {
    color: white;
    font-size: 1.5rem;
    opacity: 0;
    transform: scale(0.5);
    transition: var(--transition-smooth);
    background: rgba(197, 160, 47, 0.7);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-item:hover .image-overlay {
    background: rgba(0, 0, 0, 0.2);
}

.gallery-item:hover .image-overlay i {
    opacity: 1;
    transform: scale(1);
}

.item-info {
    padding: 1.5rem 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--surface-low);
}

.item-info h3 {
    font-size: 1.4rem;
    font-weight: 600;
}

.item-price {
    color: var(--primary-gold);
    font-weight: 700;
    font-size: 1.2rem;
}

.item-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 0 0.5rem 0.5rem;
}

.item-size {
    color: var(--primary-gold);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0 0.5rem 1rem;
    letter-spacing: 0.05em;
}

.item-size i {
    margin-right: 0.4rem;
    font-size: 0.75rem;
}

/* ========== LIGHTBOX ========== */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    backdrop-filter: blur(10px);
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 78vh;
    object-fit: contain;
    border-radius: 2px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: lightboxZoomIn 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

@keyframes lightboxZoomIn {
    from {
        transform: scale(0.85);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-title {
    color: white;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-top: 1.2rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.lightbox-size {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-top: 0.4rem;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.lightbox-size i {
    color: var(--primary-gold);
    margin-right: 0.4rem;
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    background: none;
    border: none;
    color: white;
    font-size: 2.5rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 10001;
    line-height: 1;
}

.lightbox-close:hover {
    color: var(--primary-gold);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-size: 1rem;
    z-index: 10001;
}

.lightbox-nav:hover {
    background: var(--primary-gold);
    border-color: var(--primary-gold);
}

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}

/* ========== FOOTER ========== */
footer {
    padding: 5rem 5%;
    background: var(--surface-low);
    text-align: center;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 2.5rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.social-links a:hover {
    color: var(--primary-gold);
}

.copyright {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    header {
        padding: 0.8rem 4%;
    }
    
    header.scrolled {
        padding: 0.5rem 4%;
    }

    header.scrolled .logo img {
        height: 30px;
    }

    header.scrolled .brand-main {
        font-size: 0.75rem;
    }

    header.scrolled .brand-sub {
        font-size: 0.85rem;
        margin-top: -3px;
    }
    
    .logo img {
        height: 45px;
    }

    .brand-main {
        font-size: 1rem;
        transition: var(--transition-smooth);
    }

    .brand-sub {
        font-size: 1.2rem;
        transition: var(--transition-smooth);
    }
    
    nav {
        display: none;
    }
    
    .section-title h2 {
        font-size: 2.2rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .image-container {
        height: 380px;
    }
    
    .gallery {
        padding: 6rem 5%;
    }

    /* Header actions mobile */
    .header-actions {
        gap: 0.4rem;
    }

    .btn-minimal {
        font-size: 0.65rem;
        padding: 0.35rem 0.6rem;
        letter-spacing: 0.1em;
    }

    .theme-toggle {
        width: 32px;
        height: 32px;
        font-size: 0.75rem;
    }

    .lang-btn {
        padding: 0.25rem 0.45rem;
        font-size: 0.65rem;
    }

    /* Lightbox mobile */
    .lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 0.8rem;
    }

    .lightbox-prev {
        left: 0.5rem;
    }

    .lightbox-next {
        right: 0.5rem;
    }

    .lightbox-close {
        top: 1rem;
        right: 1rem;
        font-size: 2rem;
    }

    .lightbox-title {
        font-size: 1rem;
    }

    .lightbox-size {
        font-size: 0.8rem;
    }
}