/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

/* ===== SKYTRADE BRAND COLORS ===== */
:root {
    --primary-blue: #007BFF;
    --primary-blue-dark: #0056CC;
    --primary-blue-light: #339DFF;
    --secondary-blue: #E6F3FF;
    --accent-gradient: linear-gradient(135deg, #007BFF 0%, #0056CC 100%);
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #ffffff;
    --background-light: #f8f9fa;
    --background-card: #ffffff;
    --border-color: #e1e5e9;
    --shadow-light: 0 2px 10px rgba(0, 123, 255, 0.1);
    --shadow-medium: 0 4px 25px rgba(0, 123, 255, 0.15);
    --shadow-heavy: 0 10px 40px rgba(0, 123, 255, 0.2);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--text-light);
    box-shadow: var(--shadow-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--text-light);
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

.highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    display: flex;
    flex-direction: column;
    gap: 2px;
    transform: perspective(20px) rotateX(15deg) rotateY(15deg);
}

.logo-cube {
    width: 8px;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: 1px;
}

.nav-brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e6f3ff 100%);
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 123, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--secondary-blue);
    color: var(--primary-blue);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.floating-token {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: float 6s ease-in-out infinite;
}

.token-symbol {
    font-size: 48px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    z-index: 2;
    position: relative;
}

.token-rings {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.ring {
    position: absolute;
    border: 2px solid var(--primary-blue);
    border-radius: 50%;
    opacity: 0.3;
}

.ring-1 {
    width: 100px;
    height: 100px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: rotate 10s linear infinite;
}

.ring-2 {
    width: 180px;
    height: 180px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: rotate 15s linear infinite reverse;
}

.ring-3 {
    width: 260px;
    height: 260px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: rotate 20s linear infinite;
}

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

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ===== NOTICE SECTION ===== */
.notice-section {
    padding: 40px 0;
    background: #fff3cd;
    border-top: 3px solid #ffc107;
    border-bottom: 3px solid #ffc107;
}

.notice-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.notice-icon {
    color: #856404;
    font-size: 24px;
    margin-top: 4px;
}

.notice-content h3 {
    color: #856404;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.notice-content p {
    color: #856404;
    font-size: 16px;
    line-height: 1.6;
}

/* ===== SECTION HEADERS ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
}

/* ===== ABOUT SECTION ===== */
.about-section {
    padding: 100px 0;
    background: var(--background-light);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.about-card {
    background: var(--background-card);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    font-size: 24px;
}

.about-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== TOKENOMICS SECTION ===== */
.tokenomics-section {
    padding: 100px 0;
    background: white;
}

.tokenomics-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.tokenomics-card {
    background: var(--background-light);
    padding: 40px;
    border-radius: 16px;
    border-left: 4px solid var(--primary-blue);
}

.tokenomics-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.tokenomics-card i {
    color: var(--primary-blue);
}

.tokenomics-card ul {
    list-style: none;
}

.tokenomics-card li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.tokenomics-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
}

.whitepaper-cta {
    text-align: center;
    padding: 60px 40px;
    background: var(--secondary-blue);
    border-radius: 16px;
}

.whitepaper-cta h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.whitepaper-cta p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ===== HOW TO BUY SECTION ===== */
.how-to-buy-section {
    padding: 100px 0;
    background: var(--background-light);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
}

.step-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.buy-cta {
    text-align: center;
}

/* ===== ROADMAP SECTION ===== */
.roadmap-section {
    padding: 100px 0;
    background: white;
}

.roadmap-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding: 0 0 60px 80px;
}

.timeline-marker {
    position: absolute;
    left: 22px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--border-color);
    border-radius: 50%;
    border: 4px solid white;
}

.timeline-item.completed .timeline-marker {
    background: #28a745;
}

.timeline-item.active .timeline-marker {
    background: var(--primary-blue);
}

.timeline-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
}

.timeline-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}

.timeline-item.completed .timeline-status {
    background: #d4edda;
    color: #155724;
}

.timeline-item.active .timeline-status {
    background: var(--secondary-blue);
    color: var(--primary-blue);
}

.timeline-item .timeline-status {
    background: var(--background-light);
    color: var(--text-secondary);
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: 100px 0;
    background: var(--accent-gradient);
    text-align: center;
}

.cta-content h2 {
    font-size: 40px;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.cta-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: white;
    color: var(--primary-blue);
}

.cta-section .btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
}

.cta-section .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.cta-section .btn-secondary:hover {
    background: white;
    color: var(--primary-blue);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon .logo-cube {
    background: white;
}

.footer-logo span {
    font-size: 24px;
    font-weight: 700;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 40px;
}

.footer-column h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.footer-disclaimer {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(255, 193, 7, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(255, 193, 7, 0.2);
}

.footer-disclaimer p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    line-height: 1.5;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .tokenomics-content {
        grid-template-columns: 1fr;
    }
    
    .steps-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .notice-card {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        width: 100%;
        justify-content: center;
    }
}