/* Premium Corporate Landing - BIGFUTURE GROUP */
:root {
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font);
    background: #000;
    color: #fff;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

html {
    scroll-behavior: smooth;
}

/* Navigation */
.navbar {
    background: rgba(0, 0, 0, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.25rem 0;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    display: flex;
    align-items: center;
    padding: 0;
    line-height: 1;
}

.navbar-logo {
    height: 50px;
    width: auto;
    max-width: 400px;
    object-fit: contain;
    display: block;
    filter: brightness(0) invert(1);
}

.nav-link {
    font-weight: 400;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    letter-spacing: -0.01em;
}

.nav-link:hover {
    color: rgba(255, 255, 255, 0.7);
}

.lang-btn {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.lang-btn.active {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

/* Hero */
.hero-section {
    padding: 140px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-content h1 {
    letter-spacing: -0.03em;
    line-height: 1.1;
    font-weight: 700;
}

.hero-content .lead {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.25rem;
    line-height: 1.7;
    max-width: 700px;
}

.hero-stats {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Sections */
.section {
    padding: 120px 0;
}

.section h2 {
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section .lead {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.125rem;
    line-height: 1.7;
}

/* About Cards */
.about-card {
    padding: 2rem 0;
}

.about-card h4 {
    letter-spacing: -0.01em;
    margin-bottom: 1rem;
}

.about-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

/* Strategy Section */
.strategy-section {
    background: rgba(255, 255, 255, 0.02);
}

.strategy-card {
    padding: 2rem 0;
}

.strategy-number {
    font-size: 3rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.2);
    line-height: 1;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.strategy-card h4 {
    letter-spacing: -0.01em;
    margin-bottom: 1rem;
}

.strategy-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.strategy-note {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border-left: 3px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.strategy-note p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin: 0;
}

/* Companies */
.company-item {
    padding: 80px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.company-item:last-child {
    border-bottom: none;
}

.company-logo-link {
    display: inline-block;
    text-decoration: none;
}

.company-logo {
    max-width: 100%;
    max-height: 140px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.company-logo-placeholder {
    width: 240px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 1.25rem;
    border-radius: 4px;
}

.company-item h3 {
    letter-spacing: -0.01em;
    font-size: 2rem;
}

.company-item .text-muted {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.company-item p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 1.0625rem;
}

.company-meta {
    margin-top: 1.5rem;
}

.company-meta .badge {
    font-weight: 500;
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    letter-spacing: 0.02em;
}

/* Buttons */
.btn-light {
    background: #fff;
    color: #000;
    border: none;
    font-weight: 600;
    padding: 0.875rem 2.5rem;
    letter-spacing: -0.01em;
    border-radius: 2px;
}

.btn-light:hover {
    background: rgba(255, 255, 255, 0.95);
    color: #000;
    transform: translateY(-1px);
}

/* Contact Section */
.contact-section {
    background: rgba(255, 255, 255, 0.02);
}

/* Footer */
.footer-section {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-text {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .display-2 {
        font-size: 3.5rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .navbar-logo {
        height: 32px;
        max-width: 240px;
    }
    
    .hero-section {
        padding: 120px 0 80px;
        min-height: auto;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .display-2 {
        font-size: 2.5rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
    
    .section {
        padding: 80px 0;
    }
    
    .company-item {
        padding: 60px 0;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .strategy-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .hero-stats {
        margin-top: 3rem;
        padding-top: 2rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
}