@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400..900;1,400..900&family=Inter:ital,wght@0,100..900;1,100..900&family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap');

:root {
    /* Paleta de Colores - B2B Institutional Authority */
    --vb-black: #050505;
    --vb-charcoal: #0F0F0F;
    --vb-panel: #141414;
    --vb-gold: #C5A059;
    --vb-gold-rgb: 197, 160, 89;
    --vb-silver: #E2E8F0;
    --vb-border: rgba(255, 255, 255, 0.08);
    --vb-border-gold: rgba(197, 160, 89, 0.3);

    /* Typography Tokens */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Playfair Display', serif;
    --font-mono: 'JetBrains Mono', 'ui-monospace', 'Cascadia Code', monospace;

    /* Spacing & Layout */
    --container-width: 1300px;
    --grid-gap: 1px;

    /* Letter Spacing (Tracking) */
    --tracking-tighter: -0.02em;
    --tracking-tight: -0.01em;
    --tracking-normal: 0em;
    --tracking-wide: 0.05em;
    --tracking-widest: 0.12em;

    /* Transitions */
    --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-standard: all 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 2. Base Reset & Typography */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

::selection {
    background: var(--vb-gold);
    color: var(--vb-black);
}

html {
    scroll-behavior: smooth;
    background-color: var(--vb-black);
    font-size: 15px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--vb-black);
    color: var(--vb-silver);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-serif);
    font-weight: 400;
}

.font-sans {
    font-family: var(--font-sans);
}

.noise-overlay {
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.08;
    mix-blend-mode: multiply;
    z-index: 9999;
    pointer-events: none;
    will-change: transform;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

.font-mono {
    font-family: var(--font-mono);
}

.font-serif {
    font-family: var(--font-serif);
}

.text-gold {
    color: var(--vb-gold);
}

.text-silver {
    color: var(--vb-silver);
}

.text-dim {
    color: rgba(226, 232, 240, 0.4);
}

.uppercase {
    text-transform: uppercase;
}

.tracking-wide {
    letter-spacing: var(--tracking-wide);
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

.mb-6 {
    margin-bottom: 1.5rem;
}

.mb-8 {
    margin-bottom: 2rem;
}

.mb-12 {
    margin-bottom: 3rem;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    letter-spacing: var(--tracking-tighter);
    font-weight: 600;
}

h2 {
    font-size: 2.5rem;
    font-weight: 500;
    letter-spacing: var(--tracking-tight);
}

h3 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    color: var(--vb-gold);
}

p {
    font-size: 1rem;
    color: rgba(226, 232, 240, 0.75);
    max-width: 65ch;
}

/* Technical Layout Utilities */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: flex-start;
}

/* Refined Institutional Aesthetics */

.module-label {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid var(--vb-gold);
    color: var(--vb-gold);
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.3em;
    margin-bottom: 40px;
    background: rgba(197, 160, 89, 0.05);
}

.spec-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.spec-row {
    display: flex;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--vb-silver);
    border-bottom: 1px solid var(--vb-border);
    padding-bottom: 15px;
}

.technical-list {
    list-style: none;
    margin-top: 20px;
}

.technical-list li {
    padding-left: 20px;
    margin-bottom: 15px;
    border-left: 2px solid var(--vb-gold);
    font-size: 0.95rem;
    color: rgba(226, 232, 240, 0.85);
}

/* Grid System - Institutional & Dense */
.grid-technical {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.grid-item {
    background: var(--vb-panel);
    border: 1px solid var(--vb-border);
    transition: all 0.3s ease;
}

.grid-item:hover {
    border-color: var(--vb-gold);
    background: var(--vb-charcoal);
}

/* Performance Optimization for Animations */
.grid-item,
.stat-box,
.hero-content>*,
.spec-row,
section>.container>* {
    will-change: transform, opacity;
    backface-visibility: hidden;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
}

.spec-table th,
.spec-table td {
    padding: 12px 0;
    border-bottom: 1px solid var(--vb-border);
    text-align: left;
    font-size: 0.85rem;
}

.spec-table th {
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    text-transform: uppercase;
}

/* 3. Navigation */
.main-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 6px 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--vb-border);
    transition: var(--transition-standard);
}

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

.logo img {
    height: 85px;
    width: auto;
    filter: brightness(1.1);
}

.main-nav ul {
    display: flex;
    gap: 40px;
    list-style: none;
}

.main-nav a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--vb-silver);
    letter-spacing: var(--tracking-wide);
    opacity: 0.6;
    transition: opacity 0.2s;
}

.main-nav a:hover {
    opacity: 1;
    color: var(--vb-gold);
}

.btn-cta {
    background: var(--vb-gold);
    color: #000;
    padding: 10px 24px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid var(--vb-gold);
    cursor: pointer;
    transition: all 0.3s;
}

.btn-cta:hover {
    background: transparent;
    color: var(--vb-gold);
    box-shadow: 0 0 15px rgba(197, 160, 89, 0.3);
    transform: translateY(-2px);
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.75rem;
}

.lang-opt {
    cursor: pointer;
    opacity: 0.4;
    transition: opacity 0.2s;
}

.lang-opt.active,
.lang-opt:hover {
    opacity: 1;
}

.lang-opt.active {
    color: var(--vb-gold);
}

/* 4. MODAL & FORM STYLES */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(15px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: #0a0a0a;
    border: 1px solid rgba(197, 160, 89, 0.5);
    width: 90%;
    max-width: 700px;
    padding: 50px;
    transform: translateY(30px);
    transition: transform 0.4s ease;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--vb-border);
    padding-bottom: 20px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--vb-silver);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
}

.technical-form .form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-size: 0.7rem;
    color: var(--vb-gold);
    letter-spacing: 0.15em;
    font-family: var(--font-mono);
}

.form-group input,
.form-group textarea {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--vb-border);
    color: var(--vb-silver);
    padding: 16px;
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--vb-gold);
    background: rgba(255, 255, 255, 0.06);
}

/* 5. Sections Generic */
section {
    padding: 120px 0;
    border-bottom: 1px solid var(--vb-border);
}

.hero {
    padding-top: 200px;
    padding-bottom: 120px;
    background-image: linear-gradient(rgba(5, 5, 5, 0.6), rgba(5, 5, 5, 1)), url('assets/hero_luxury.png');
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
    will-change: transform;
}

/* Special Components */
.phantom-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    filter: grayscale(0.5);
    transition: filter 0.5s;
}

.phantom-card:hover img {
    filter: grayscale(0);
}

.phantom-card {
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.phantom-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.phantom-content {
    padding: 32px;
}

.stat-box {
    padding: 40px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.01);
    transition: border-color 0.3s;
}

.stat-box:hover {
    border-color: var(--vb-gold);
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: #fff;
}

.legal-text strong {
    color: var(--vb-silver);
    font-weight: 600;
}

@media (max-width: 1024px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero {
        padding-top: 160px;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 24px;
    }

    .main-nav {
        display: none;
    }
}