/* ==========================================================================
   Etternitty Corporate Style System
   Premium Editorial Design - Luxury Corporate Aesthetics
   ========================================================================== */

/* Design Tokens & Variables */
:root {
    --bg-primary: #0D0D0D;
    --bg-secondary: #141414;
    --bg-card: #1A1A1A;
    --bg-card-hover: #222222;
    
    --text-primary: #f5f5f7;
    --text-secondary: #8e8e93;
    --text-muted: #48484a;
    --text-contrast: #ffffff;
    
    --accent-gold: #C8A86E;
    --accent-gold-hover: #d4b87a;
    --accent-gold-light: rgba(200, 168, 110, 0.15);
    
    --border-color: #1c1c1e;
    --border-color-hover: #2c2c2e;
    
    --font-serif: 'Cinzel', Georgia, serif;
    --font-sans: 'Montserrat', system-ui, -apple-system, sans-serif;
    
    --transition-slow: cubic-bezier(0.25, 1, 0.5, 1);
    --transition-duration: 0.6s;
    
    --header-height: 90px;
    --header-height-scrolled: 75px;
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.625;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
    background-color: var(--bg-primary);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: #2c2c2e;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gold);
}

/* Typography Reset */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--text-contrast);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

/* Language Toggle Logic visibility styles */
body.lang-pt .lang-en {
    display: none !important;
}
body.lang-en .lang-pt {
    display: none !important;
}

/* Common Layout Utilities */
.section-container {
    width: 100%;
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 40px;
}

.scroll-section {
    padding: 140px 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    background-color: var(--bg-primary);
}

.scroll-section:nth-of-type(even) {
    background-color: var(--bg-secondary);
}

/* Global Transition classes for fade-in scroll effects */
.fade-in-element {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity var(--transition-duration) var(--transition-slow), 
                transform var(--transition-duration) var(--transition-slow);
}

.fade-in-element.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Header & Sticky Navigation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: height 0.4s var(--transition-slow), background-color 0.4s var(--transition-slow), border-color 0.4s var(--transition-slow);
    background-color: transparent;
    border-bottom: 1px solid transparent;
}

.site-header.scrolled {
    height: var(--header-height-scrolled);
    background-color: rgba(13, 13, 13, 0.92);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    max-width: 1440px;
    height: 100%;
    margin: 0 auto;
    padding: 0 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    font-weight: 400;
    letter-spacing: 0.28em;
    color: var(--text-contrast);
    transition: letter-spacing 0.4s ease, opacity 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding-left: 0.28em;
}

.logo:hover {
    letter-spacing: 0.33em;
    color: var(--accent-gold);
}

.logo-symbol {
    flex-shrink: 0;
}

.main-nav {
    display: flex;
    gap: 38px;
    height: 100%;
    align-items: center;
}

.nav-link {
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: var(--accent-gold);
    transition: width 0.3s var(--transition-slow), left 0.3s var(--transition-slow);
}

.nav-link:hover {
    color: var(--text-primary);
}

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

.nav-link.active::after {
    width: 100%;
    left: 0;
}

.lang-selector {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 500;
    padding: 4px;
    transition: color 0.3s ease;
}

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

.lang-btn.active {
    color: var(--accent-gold);
}

.lang-divider {
    color: var(--border-color-hover);
    pointer-events: none;
}

/* Mobile Navigation Toggle Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 16px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1100;
}

.mobile-menu-toggle .bar {
    width: 100%;
    height: 1.5px;
    background-color: var(--text-primary);
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}

/* Cinematic Hero Section */
.hero-section {
    height: 100vh;
    width: 100%;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    background-color: var(--bg-primary);
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.85) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    font-size: clamp(3.2rem, 7vw, 5.8rem);
    line-height: 1.05;
    margin-bottom: 24px;
    font-weight: 300;
    letter-spacing: -0.02em;
    opacity: 0;
    transform: translateY(35px);
    animation: heroFadeIn 1.5s var(--transition-slow) forwards 0.2s;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 45px;
    font-weight: 300;
    letter-spacing: 0.01em;
    opacity: 0;
    transform: translateY(25px);
    animation: heroFadeIn 1.5s var(--transition-slow) forwards 0.5s;
}

.hero-actions {
    opacity: 0;
    transform: translateY(20px);
    animation: heroFadeIn 1.5s var(--transition-slow) forwards 0.8s;
}

/* Animations */
@keyframes heroFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Premium Buttons */
.btn {
    display: inline-block;
    padding: 16px 36px;
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    border: 1px solid var(--accent-gold);
    border-radius: 0;
    background-color: transparent;
    color: var(--text-contrast);
    cursor: pointer;
    transition: all 0.4s var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: transparent;
    border-color: rgba(255, 255, 255, 0.2);
}

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

.hero-scroll-indicator {
    position: absolute;
    bottom: 45px;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 70px;
    background-color: rgba(255,255,255,0.15);
    z-index: 2;
    overflow: hidden;
}

.scroll-dot {
    display: block;
    width: 1px;
    height: 15px;
    background-color: var(--accent-gold);
    animation: scrollScroll 2.2s infinite ease-in-out;
}

@keyframes scrollScroll {
    0% { transform: translateY(-20px); }
    50% { transform: translateY(75px); }
    100% { transform: translateY(75px); }
}

/* Editorial Grid System (Used in About & Governance) */
.editorial-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 80px;
    align-items: start;
}

.editorial-label {
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    color: var(--accent-gold);
    text-transform: uppercase;
    position: sticky;
    top: 140px;
}

.section-headline {
    font-size: clamp(2.2rem, 4vw, 3.4rem);
    line-height: 1.15;
    margin-bottom: 45px;
    font-weight: 300;
    letter-spacing: -0.01em;
}

.about-lead {
    font-family: var(--font-serif);
    font-size: 1.62rem;
    font-weight: 300;
    line-height: 1.5;
    color: var(--text-primary);
    margin-bottom: 35px;
}

.about-body {
    color: var(--text-secondary);
    font-size: 1.05rem;
    font-weight: 300;
    line-height: 1.7;
    max-width: 780px;
}

/* Section Header standard configuration */
.section-header {
    margin-bottom: 70px;
    max-width: 800px;
}

.section-header.text-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.section-category {
    font-size: 0.78rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    color: var(--accent-gold);
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 300;
    margin-bottom: 20px;
}

.section-subtitle {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Investment Focus Cards */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.sector-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 45px 35px;
    position: relative;
    transition: background-color 0.5s var(--transition-slow), border-color 0.5s var(--transition-slow), transform 0.5s var(--transition-slow);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-height: 310px;
}

.sector-card:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-gold);
    transform: translateY(-5px);
}

.sector-card-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.sector-number {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--accent-gold);
    margin-bottom: 30px;
    font-weight: 300;
    display: block;
}

.sector-name {
    font-size: 1.62rem;
    font-weight: 300;
    margin-bottom: 16px;
    letter-spacing: 0em;
}

.sector-desc {
    color: var(--text-secondary);
    font-size: 0.94rem;
    line-height: 1.6;
    font-weight: 300;
    margin-bottom: 40px;
    flex-grow: 1;
}

/* Partner Logo Slot underneath card contents */
.partner-logo-container {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-top: auto;
}

.partner-label {
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 2px;
}

.partner-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: flex-end;
    text-align: right;
}

.partner-logo {
    opacity: 0.35;
    transition: opacity 0.4s var(--transition-slow);
}

.sector-card:hover .partner-logo {
    opacity: 0.85;
}

.logo-text {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: var(--text-primary);
}

/* How We Create Value: Horizontal Flow Styling */
.flow-wrapper {
    position: relative;
    padding: 50px 0;
    margin-top: 40px;
}

.flow-progress-bar {
    position: absolute;
    top: 68px; /* Perfectly aligned to the center dots */
    left: 40px;
    right: 40px;
    height: 1px;
    background-color: var(--border-color-hover);
    z-index: 1;
}

.flow-progress-active {
    height: 100%;
    width: 20%; /* Filled dynamically by JavaScript based on scroll */
    background-color: var(--accent-gold);
    transition: width 0.8s var(--transition-slow);
}

.flow-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
    position: relative;
    z-index: 2;
}

.flow-step {
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.step-dot-container {
    height: 36px;
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.step-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color-hover);
    transition: background-color 0.4s ease, border-color 0.4s ease, transform 0.4s ease;
}

.flow-step:hover .step-dot,
.flow-step.active .step-dot {
    background-color: var(--accent-gold);
    border-color: var(--accent-gold);
    transform: scale(1.3);
    box-shadow: 0 0 10px rgba(191, 161, 95, 0.4);
}

.step-header {
    margin-bottom: 12px;
}

.step-num {
    font-family: var(--font-serif);
    font-size: 0.88rem;
    color: var(--accent-gold);
    display: block;
    margin-bottom: 4px;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 400;
}

.step-text {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.55;
    font-weight: 300;
    transition: color 0.4s ease;
}

.flow-step.active .step-text {
    color: var(--text-primary);
}

/* Governance: Clean Vertical Hierarchy Nodes */
.gov-structure {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 700px;
    margin-top: 60px;
}

.gov-node {
    width: 100%;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 30px 40px;
    text-align: center;
    transition: border-color 0.4s ease, background-color 0.4s ease;
}

.gov-node:hover {
    border-color: var(--accent-gold-light);
    background-color: var(--bg-card-hover);
}

.gov-node-title {
    font-size: 1.38rem;
    font-weight: 400;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
    color: var(--text-contrast);
}

.gov-node-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 300;
    max-width: 500px;
    margin: 0 auto;
}

.gov-arrow {
    padding: 24px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gov-arrow svg {
    animation: bounceDown 2.5s infinite ease-in-out;
}

@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

/* Contact Details & Editorial visual Box */
.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 100px;
    align-items: center;
}

.contact-lead {
    font-family: var(--font-serif);
    font-size: 1.38rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 45px;
    font-weight: 300;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 35px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-left: 1px solid var(--border-color);
    padding-left: 24px;
}

.contact-label {
    font-size: 0.68rem;
    letter-spacing: 0.2em;
    color: var(--accent-gold);
    font-weight: 500;
}

.contact-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 300;
    line-height: 1.6;
}

.contact-value a {
    position: relative;
    display: inline-block;
}

.contact-value a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--accent-gold);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s var(--transition-slow);
}

.contact-value a:hover {
    color: var(--accent-gold);
}

.contact-value a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.editorial-visual-box {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 70px 50px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 380px;
}

.visual-border-thin {
    position: absolute;
    top: 25px;
    left: 25px;
    right: 25px;
    bottom: 25px;
    border: 1px solid rgba(191, 161, 95, 0.12);
    pointer-events: none;
}

.visual-quote {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-style: italic;
    line-height: 1.65;
    color: var(--text-contrast);
    text-align: center;
    margin-bottom: 25px;
    font-weight: 300;
}

.visual-author {
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    color: var(--accent-gold);
    text-align: center;
    text-transform: uppercase;
}

/* Site Footer */
.site-footer {
    background-color: #080808;
    border-top: 1px solid var(--border-color);
    padding: 80px 0 50px 0;
}

.footer-container {
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 40px;
    margin-bottom: 30px;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    letter-spacing: 0.3em;
    color: var(--text-contrast);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-linkedin-link .linkedin-icon-anchor {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.footer-linkedin-link .linkedin-icon-anchor:hover {
    color: var(--accent-gold);
}

.linkedin-icon {
    transition: transform 0.3s ease;
}

.linkedin-icon-anchor:hover .linkedin-icon {
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 25px;
}

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

.footer-link:hover {
    color: var(--accent-gold);
}


/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

/* Tablet Layout (Landscape / Portrait) */
@media (max-width: 1024px) {
    .header-container {
        padding: 0 30px;
    }
    
    .editorial-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .editorial-label {
        position: relative;
        top: 0;
        margin-bottom: 10px;
    }
    
    .sectors-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .flow-steps {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .flow-progress-bar {
        display: none; /* Hide progress bar on complex grid wrap */
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
}

/* Small Screens / Mobile Navigation */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .site-header {
        height: var(--header-height);
        background-color: rgba(13, 13, 13, 0.95); /* Semi-solid background by default on mobile */
        border-bottom: 1px solid var(--border-color);
    }
    
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: 30px;
        z-index: 999;
        transform: translateY(-100%);
        opacity: 0;
        transition: transform 0.5s var(--transition-slow), opacity 0.5s var(--transition-slow);
        pointer-events: none;
    }
    
    .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Toggle Hamburger Animation */
    .mobile-menu-toggle.open .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .mobile-menu-toggle.open .bar:nth-child(2) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .hero-content {
        padding: 0 20px;
    }
    
    .scroll-section {
        padding: 80px 0;
    }
    
    .sectors-grid {
        grid-template-columns: 1fr;
    }
    
    /* Flow Step Vertical Layout on Mobile */
    .flow-steps {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .flow-wrapper {
        padding: 20px 0;
    }
    
    .flow-step {
        border-left: 1px solid var(--border-color-hover);
        padding-left: 25px;
        position: relative;
    }
    
    .flow-step.active {
        border-left-color: var(--accent-gold);
    }
    
    .step-dot-container {
        display: none;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 25px;
        align-items: flex-start;
    }
    
    .footer-bottom {
        flex-direction: column-reverse;
        gap: 20px;
        align-items: flex-start;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 12px;
    }
}