/* --- CSS VARIABLES & RESET --- */
:root {
    --bg-color: #060606;
    --text-main: #ffffff;
    --text-muted: #8c8c8c;
    --card-bg: #121212;
    --card-border: #222222;
    --accent-blue: #0b2aff;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-family);
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    font-family: inherit;
    transition: opacity 0.2s;
}

button:hover {
    opacity: 0.8;
}

/* --- NAVBAR --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    z-index: 1000;
    background: rgba(6, 6, 6, 0.8);
    backdrop-filter: blur(10px);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 30px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
}

.logo span {
    font-size: 14px;
    margin-left: 5px;
    vertical-align: top;
}

.nav-selector {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
}

.nav-center {
    display: flex;
    gap: 30px;
    font-size: 15px;
    font-weight: 500;
}

.nav-center a {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color 0.2s;
}

.nav-center a:hover, .nav-center a.active {
    color: var(--text-main);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-connect {
    background-color: var(--text-main);
    color: var(--bg-color);
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 14px;
}

.icon-btn {
    background: transparent;
    color: var(--text-muted);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- HERO SECTION --- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    position: relative;
}

.hero h1 {
    font-size: 72px;
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -2px;
    max-width: 800px;
    margin-bottom: 40px;
}

.btn-primary {
    background-color: var(--text-main);
    color: var(--bg-color);
    padding: 16px 32px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 18px;
}

/* Floating Token Badges (Simulated) */
.floating-badge {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 12px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(5px);
    animation: float 6s ease-in-out infinite;
}

.floating-badge img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
}

.floating-badge .badge-text {
    text-align: left;
    font-size: 12px;
}

.floating-badge .badge-text strong {
    display: block;
    font-size: 14px;
}

.badge-1 { top: 30%; left: 10%; animation-delay: 0s; }
.badge-2 { top: 25%; right: 10%; animation-delay: 1s; }
.badge-3 { bottom: 30%; left: 15%; animation-delay: 2s; }
.badge-4 { bottom: 25%; right: 15%; animation-delay: 3s; }

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

/* Mock Swap Widget */
.swap-widget {
    margin-top: 60px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    width: 400px;
    padding: 20px;
    text-align: left;
}

.swap-header {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 10px;
}

.swap-amount {
    font-size: 32px;
    font-weight: 500;
}

/* --- FEATURES SECTION --- */
.section {
    padding: 100px 10%;
    position: relative;
}

.section-title {
    font-size: 48px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 60px;
    line-height: 1.2;
}

/* Gas-free Section */
.gas-free-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 60px;
    margin-bottom: 100px;
}

.gas-free-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.gas-free-text p {
    color: var(--text-muted);
    max-width: 400px;
    margin-bottom: 30px;
}

.gas-free-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-row {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255,255,255,0.03);
    padding: 15px 20px;
    border-radius: 12px;
}

.stat-row span {
    color: var(--text-muted);
    font-size: 14px;
}

/* Cross-chain Section */
.cross-chain-container {
    text-align: center;
    position: relative;
    padding: 100px 0;
    overflow: hidden;
}

.cross-chain-title {
    font-size: 48px;
    font-weight: 600;
    margin-bottom: 80px;
}

.chain-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.chain-icon {
    width: 80px;
    height: 80px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    transition: transform 0.3s;
}

.chain-icon:hover {
    transform: scale(1.1);
    border-color: var(--text-muted);
}

/* Stats Banner */
.stats-banner {
    background: linear-gradient(90deg, #200000 0%, #000000 50%, #000020 100%);
    padding: 60px 10%;
    text-align: center;
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.stats-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://images.unsplash.com/photo-1617802690992-15d93263d3a9?q=80&w=2070&auto=format&fit=crop') center/cover;
    opacity: 0.1;
    z-index: 0;
}

.stats-content {
    position: relative;
    z-index: 1;
}

.stats-banner h2 {
    font-size: 24px;
    margin-bottom: 40px;
    font-weight: 400;
}

.stats-numbers {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.stat-item h3 {
    font-size: 64px;
    font-weight: 700;
    background: linear-gradient(90deg, #fff, #aaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.stat-item p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Cards Section */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    padding: 0 10%;
    margin-bottom: 100px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 300px;
    transition: border-color 0.3s;
}

.feature-card:hover {
    border-color: #444;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 30px;
}

.feature-btn {
    background: rgba(255,255,255,0.1);
    color: var(--text-main);
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 14px;
    align-self: flex-start;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 100px 20px;
}

.faq-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 40px;
}

.faq-header h2 {
    font-size: 36px;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.faq-item {
    border-bottom: 1px solid var(--card-border);
}

.faq-question {
    width: 100%;
    background: transparent;
    color: var(--text-main);
    text-align: left;
    padding: 20px 0;
    font-size: 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question i {
    transition: transform 0.3s;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    color: var(--text-muted);
    transition: max-height 0.3s ease-out;
    font-size: 15px;
}

.faq-item.active .faq-answer {
    max-height: 100px; /* Adjust based on content */
    padding-bottom: 20px;
}

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 100px 20px;
}

.btn-large {
    background: var(--text-main);
    color: var(--bg-color);
    padding: 24px 48px;
    border-radius: 50px;
    font-size: 24px;
    font-weight: 600;
}

/* --- FOOTER --- */
footer {
    border-top: 1px solid var(--card-border);
    padding: 60px 10%;
    background: var(--bg-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    font-size: 32px;
    font-weight: 700;
}

.footer-col h4 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
    font-weight: 500;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col ul li a {
    font-size: 14px;
    transition: color 0.2s;
}

.footer-col ul li a:hover {
    color: var(--text-muted);
}

.newsletter {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.newsletter h4 {
    font-size: 14px;
    color: var(--text-muted);
}

.input-group {
    display: flex;
    gap: 10px;
}

.input-group input {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 12px 15px;
    border-radius: 8px;
    color: white;
    outline: none;
}

.input-group input:focus {
    border-color: #444;
}

.input-group button {
    background: var(--text-main);
    color: var(--bg-color);
    padding: 0 20px;
    border-radius: 8px;
    font-weight: 600;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--card-border);
    font-size: 12px;
    color: var(--text-muted);
}

.social-icons {
    display: flex;
    gap: 20px;
    font-size: 20px;
}

.footer-legal {
    display: flex;
    gap: 20px;
}

/* --- ANIMATIONS --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .hero h1 { font-size: 56px; }
    .floating-badge { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .gas-free-container { flex-direction: column; text-align: center; gap: 40px; }
    .gas-free-text p { margin: 0 auto 30px auto; }
}

@media (max-width: 768px) {
    .navbar { padding: 15px 20px; }
    .nav-center { display: none; }
    .hero h1 { font-size: 40px; }
    .section-title, .cross-chain-title { font-size: 32px; }
    .stats-numbers { flex-direction: column; gap: 40px; }
    .stat-item h3 { font-size: 48px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 20px; text-align: center; }
}