:root {
    --primary-color: #000000;
    --accent-color: #333333;
    --bg-color: #ffffff;
    --surface-color: #f5f5f5;
    --text-primary: #111111;
    --text-secondary: #666666;
    --text-light: #f9f9f9;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-serif: 'Playfair Display', serif;
    
    --spacing-sm: 1rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 5rem;
    --spacing-xl: 8rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.bg-light { background-color: var(--surface-color); }
.bg-dark { background-color: var(--primary-color); color: var(--text-light); }
.text-center { text-align: center; }

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 2rem 0;
    transition: all 0.4s ease;
    background: transparent;
}

.navbar.scrolled {
    padding: 1.25rem 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0,0,0,0.03);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--bg-color);
    text-transform: uppercase;
    transition: color 0.4s ease;
}

.navbar.scrolled .logo {
    color: var(--primary-color);
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.lang-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.navbar.scrolled .lang-btn { color: var(--text-secondary); }

.lang-btn.active { color: var(--bg-color); font-weight: 600; }
.navbar.scrolled .lang-btn.active { color: var(--primary-color); }

.separator { color: rgba(255,255,255,0.3); }
.navbar.scrolled .separator { color: #cbd5e1; }

.section { padding: var(--spacing-xl) 0; }

/* Hero */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: var(--bg-color);
    overflow: hidden;
}

.hero-bg-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 0;
    pointer-events: none;
    /* Filtragem extra caso o vídeo seja muito chamativo */
    filter: grayscale(100%) contrast(1.1);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.85) 0%, rgba(26,26,26,0.55) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
    margin-top: 3rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 300;
    line-height: 1.15;
    margin-bottom: 2rem;
    letter-spacing: -1px;
}

.hero .subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    font-weight: 300;
    opacity: 0.85;
    max-width: 650px;
    margin: 0 auto 3rem;
    line-height: 1.6;
}

.cta-btn {
    display: inline-block;
    padding: 1.1rem 2.5rem;
    background-color: var(--bg-color);
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}

/* About */
.about .lead-text {
    font-size: clamp(1.5rem, 3.5vw, 2.8rem);
    font-weight: 300;
    line-height: 1.35;
    max-width: 1000px;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.about-grid p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Ecosystem */
.ecosystem-flow {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    padding: 2rem 0;
}

.flow-item {
    flex: 1;
    position: relative;
    z-index: 2;
    padding: 3rem 2.5rem;
    background: var(--bg-color);
    box-shadow: 0 20px 50px rgba(0,0,0,0.02);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
    border: 1px solid rgba(0,0,0,0.03);
}

.flow-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0,0,0,0.06);
    border-color: rgba(0,0,0,0.05);
}

.flow-icon {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    opacity: 0.2;
}

.flow-item h3 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.flow-item p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

.flow-connector {
    width: clamp(15px, 2.5vw, 60px);
    height: 1px;
    background: rgba(0,0,0,0.1);
    margin-top: 6.5rem;
    flex-shrink: 0;
}

/* Companies */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.premium-card {
    padding: 3.5rem 2.5rem;
    border: 1px solid rgba(0,0,0,0.06);
    transition: all 0.5s ease;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 280px;
}

.premium-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(0,0,0,0.04);
}

.card-brand {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    letter-spacing: 0.5px;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* Strategy */
.strategy {
    padding: var(--spacing-xl) 0;
}

.strategy-content {
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
}

.strategy .lead-text {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 300;
    margin-bottom: 2.5rem;
    line-height: 1.4;
    letter-spacing: -0.5px;
}

.strategy .secondary-text {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
    font-weight: 300;
}

/* Investors */
.investors {
    padding: 7rem 0;
    background: var(--surface-color);
}

.investor-content {
    max-width: 800px;
    margin: 0 auto;
}

.investor-content p:first-child {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 300;
    margin-bottom: 1.5rem;
    line-height: 1.4;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.investor-content .secondary-info {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: #000000;
    color: rgba(255,255,255,0.6);
    padding: 6rem 0 3rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 5rem;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: white;
    letter-spacing: 2px;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.contact-text {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: rgba(255,255,255,0.8);
    font-weight: 300;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive Adjustments */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .ecosystem-flow {
        flex-direction: column;
        align-items: center;
    }
    
    .flow-connector {
        width: 1px;
        height: 50px;
        margin: 1.5rem 0;
    }
    
    .flow-item {
        width: 100%;
        max-width: 450px;
        text-align: center;
    }
    
    :root {
        --spacing-xl: 5rem;
        --spacing-lg: 3rem;
    }
    
    .about .lead-text {
        margin-bottom: 2rem;
    }
}