:root {
    /* TranSen Color Palette - Dark Mode Premium */
    --bg-dark: #0B0E14;
    --bg-darker: #05070A;
    --primary-green: #00D084;
    --primary-gold: #D4AF37;
    --text-light: #F3F4F6;
    --text-muted: #9CA3AF;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.2;
}

.highlight { color: var(--primary-green); }
.highlight-gold { color: var(--primary-gold); }

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

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.mt-20 { margin-top: 20px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-align: center;
    border: none;
}

.btn-primary {
    background-color: var(--primary-green);
    color: #000;
    box-shadow: 0 4px 15px rgba(0, 208, 132, 0.3);
}

.btn-primary:hover {
    background-color: #00E691;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 208, 132, 0.4);
}

.btn-secondary {
    background-color: var(--primary-gold);
    color: #000;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-secondary:hover {
    background-color: #F1C40F;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--glass-border);
    color: var(--text-light);
}

.btn-outline:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-green);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    border-bottom: 1px solid var(--glass-border);
    transition: background 0.3s;
}

.navbar.scrolled {
    background: rgba(11, 14, 20, 0.9);
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links li a {
    font-weight: 600;
    font-size: 1rem;
}

.nav-links li a:hover {
    color: var(--primary-green);
}

.nav-actions {
    display: flex;
    gap: 15px;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    background: url('assets/hero_bg.png') no-repeat center center/cover;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(5,7,10,0.6) 0%, rgba(11,14,20,1) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Ecosystem Section */
.ecosystem {
    padding: 100px 0;
    background-color: var(--bg-dark);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.ecosystem-card {
    text-align: center;
}

.icon-wrapper {
    width: 60px;
    height: 60px;
    background: rgba(0, 208, 132, 0.1);
    color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 20px;
}

.ecosystem-card:nth-child(3) .icon-wrapper {
    background: rgba(212, 175, 55, 0.1);
    color: var(--primary-gold);
}

.ecosystem-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.ecosystem-card p {
    color: var(--text-muted);
}

/* Split Sections */
.split-section {
    padding: 80px 0;
    background-color: var(--bg-darker);
}

.split-section:nth-child(even) {
    background-color: var(--bg-dark);
}

.split-section .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.split-section.reverse .container {
    flex-direction: row-reverse;
}

.split-content {
    flex: 1;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.split-content p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.05rem;
}

.feature-list i {
    color: var(--primary-green);
    font-size: 1.2rem;
}

.split-image {
    flex: 1;
    height: 400px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
}

.placeholder-graphic {
    background: rgba(0,0,0,0.5);
    padding: 40px;
    border-radius: 50%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* Join Form Section */
.join-section {
    padding: 100px 0;
    background-color: var(--bg-darker);
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition-speed);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
}

/* Footer */
footer {
    background-color: #030406;
    padding: 60px 0 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-muted);
    margin: 15px 0;
}

.socials {
    display: flex;
    gap: 15px;
}

.socials a {
    width: 40px;
    height: 40px;
    background: var(--glass-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.socials a:hover {
    background: var(--primary-green);
    color: black;
}

.footer-links h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--primary-green);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations */
.reveal, .reveal-left, .reveal-right {
    opacity: 0;
    transition: all 0.8s ease-out;
}

.reveal { transform: translateY(50px); }
.reveal-left { transform: translateX(-50px); }
.reveal-right { transform: translateX(50px); }

.reveal.active, .reveal-left.active, .reveal-right.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* Responsive */
@media (max-width: 900px) {
    .nav-links, .nav-actions {
        display: none; /* Mobile menu hidden by default */
    }
    
    .hamburger {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .split-section .container,
    .split-section.reverse .container {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}