@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-dark: #0a0b10;
    --bg-card: rgba(255, 255, 255, 0.03);
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.5);
    --secondary: #a855f7;
    --accent: #fbbf24;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.6;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

nav.scrolled {
    background: rgba(10, 11, 16, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-main);
    font-size: 1.5rem;
    font-weight: 800;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dim);
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--text-main);
}

.nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 0.75rem 1.75rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 4px 15px var(--primary-glow);
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

/* Hero Section */
.hero {
    padding: 12rem 0 8rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    z-index: -1;
    filter: blur(100px);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    background: #4f46e5;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-main);
}

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

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    border: 1px solid var(--glass-border);
    animation: float 6s ease-in-out infinite;
}

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

/* Stats Section */
.stats {
    padding: 4rem 0;
    background: var(--bg-card);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-dim);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

/* Networks */
.networks {
    padding: 4rem 0;
    text-align: center;
}

.networks h2 {
    margin-bottom: 4rem;
}

.networks-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2rem;
    align-items: center;
}

.network-card {
    background: var(--glass);
    padding: 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.network-card:hover {
    background: var(--bg-card);
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.network-card img {
    width: 100%;
    max-width: 110px;
    filter: brightness(0) invert(1) opacity(0.6);
    transition: var(--transition);
}

.network-card:hover img {
    filter: brightness(0) invert(1) opacity(1);
    transform: scale(1.1);
}

/* Features */
.features {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.feature-card {
    background: var(--glass);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--bg-card);
    border-color: var(--primary);
    transform: translateY(-10px);
}

.feat-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-card h3 {
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-dim);
    font-size: 0.95rem;
}

/* Pricing */
.pricing {
    padding: 5rem 0;
    background: radial-gradient(circle at center, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.price-card {
    background: var(--bg-card);
    padding: 3rem 2rem;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    position: relative;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.price-card.popular {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
    transform: scale(1.05);
    z-index: 2;
}

.popular-tag {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}

.price-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.price-usdt {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.price-features {
    list-style: none;
    margin-bottom: 3rem;
    flex-grow: 1;
}

.price-features li {
    margin-bottom: 1rem;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.price-features li::before {
    content: '✓';
    color: var(--primary);
    font-weight: 700;
}

.price-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px) (scale(1.05));
}

/* Steps */
.how-it-works {
    padding: 5rem 0;
}

.steps-container {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 4rem;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--glass-border);
    z-index: 0;
}

.step-card {
    width: 22%;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-id {
    width: 100px;
    height: 100px;
    background: var(--bg-dark);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    box-shadow: 0 0 30px var(--primary-glow);
    transition: var(--transition);
}

.step-card:hover .step-id {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

.step-card p {
    color: var(--text-dim);
}

/* Transaction Slider */
.proof {
    padding: 4rem 0;
    overflow: hidden;
}

.slider-track {
    display: flex;
    gap: 2rem;
    animation: scroll 40s linear infinite;
    padding: 2rem 0;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-300px * 11)); }
}

.proof-card {
    min-width: 300px;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.proof-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.proof-card:hover {
    transform: scale(1.05);
    border-color: var(--primary);
}

/* Reviews */
.reviews {
    padding: 5rem 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.review-card {
    background: var(--glass);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
}

.review-stars {
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.review-text {
    font-style: italic;
    margin-bottom: 2rem;
}

.reviewer-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.reviewer-info h4 {
    font-size: 1rem;
}

.reviewer-info span {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Footer */
footer {
    padding: 5rem 0 3rem;
    background: #050608;
    border-top: 1px solid var(--glass-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-dim);
    margin: 1.5rem 0;
    max-width: 300px;
}

.footer-links h4 {
    margin-bottom: 1.5rem;
}

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

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 4rem;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-grid, .feature-grid, .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .networks-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }
    .hero-grid, .feature-grid, .pricing-grid, .reviews-grid, .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 { font-size: 3rem; }
    .hero-grid { text-align: center; }
    .hero-btns { justify-content: center; }
    .steps-container { flex-direction: column; gap: 4rem; }
    .steps-container::before { display: none; }
    .step-card { width: 100%; }
    .nav-links { display: none; }
}