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

:root {
    --bg-dark: #000000;
    --bg-darker: #0a0e27;
    --bg-card: #111111;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-tertiary: #666666;
    --accent-cyan: #00f0ff;
    --accent-green: #00c087;
    --border-light: rgba(255, 255, 255, 0.1);
    --border-lighter: rgba(255, 255, 255, 0.05);
}

html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-lighter);
    height: 64px;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 50px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-cyan);
}

.logo svg {
    width: 20px;
    height: 20px;
    color: var(--accent-cyan);
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--accent-cyan);
}

.header-right {
    display: flex;
    gap: 16px;
    align-items: center;
}

.header-link {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.header-link:hover {
    color: var(--text-primary);
}

.btn-signup {
    background-color: var(--accent-green);
    color: var(--text-primary);
    padding: 10px 24px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-signup:hover {
    background-color: #00a870;
    transform: translateY(-2px);
}

/* Main */
.main {
    margin-top: 64px;
}

/* Carousel Section */
.carousel-section {
    background: linear-gradient(135deg, #000000 0%, #0a1f25 50%, #000000 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.carousel-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
}

.carousel-wrapper {
    width: 100%;
    position: relative;
    z-index: 10;
}

.carousel {
    position: relative;
    width: 100%;
}

.slide {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
    padding: 60px 0;
}

.slide.active {
    display: block;
    opacity: 1;
}

.slide-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    min-height: 600px;
}

.slide-left {
    z-index: 20;
}

.slide-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.slide-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-weight: 500;
}

.slide-promo {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.text-cyan {
    color: var(--accent-cyan);
    font-weight: 600;
}

.form-wrapper {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
    max-width: 500px;
}

.form-input {
    flex: 1;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s;
}

.form-input::placeholder {
    color: var(--text-tertiary);
}

.form-input:focus {
    outline: none;
    background: rgba(0, 240, 255, 0.08);
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.1);
}

.btn-start {
    padding: 14px 32px;
    background-color: var(--accent-green);
    color: var(--text-primary);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    white-space: nowrap;
}

.btn-start:hover {
    background-color: #00a870;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 192, 135, 0.3);
}

.social-section {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.social-icons {
    display: flex;
    gap: 8px;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s;
}

.social-icon:hover {
    background: rgba(0, 240, 255, 0.1);
    border-color: var(--accent-cyan);
}

.download-section {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.download-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.download-icon:hover {
    background: rgba(0, 240, 255, 0.1);
    border-color: var(--accent-cyan);
}

/* Promo Card */
.slide-right {
    position: relative;
    height: 500px;
}

.promo-card {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: 320px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.08) 0%, rgba(0, 192, 135, 0.04) 100%);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    padding: 40px 24px;
    backdrop-filter: blur(20px);
    text-align: center;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(-50%); }
    50% { transform: translateY(-60px); }
}

.card-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.card-badge {
    font-size: 64px;
    font-weight: 800;
    color: var(--accent-cyan);
    text-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
}

.card-content h3 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 12px;
}

.card-content p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Carousel Indicators */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 30px 0 0;
    position: relative;
    z-index: 20;
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s;
}

.indicator.active {
    background: var(--accent-cyan);
    width: 30px;
    border-radius: 5px;
}

/* Market Section */
.market-section {
    padding: 100px 0;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-lighter);
}

.market-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.market-title {
    font-size: 40px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 12px;
}

.market-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

.market-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 60px;
}

.market-tab {
    background: transparent;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.market-tab:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.05);
}

.market-tab.active {
    border-color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.1);
}

.tab-arrow {
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.3s;
}

.market-tab:hover .tab-arrow {
    opacity: 1;
}

.market-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 60px;
}

.market-card-item {
    display: none;
}

.market-card-item.active {
    display: block;
    grid-column: 1 / -1;
}

.market-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.market-card:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.05);
}

.card-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-symbol {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.card-change {
    font-size: 16px;
    color: #ff4444;
    font-weight: 600;
}

.card-change.up {
    color: var(--accent-green);
}

/* Crypto Section */
.crypto-section {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 24px;
}

.crypto-tabs {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 16px;
}

.crypto-tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    transition: all 0.3s;
    position: relative;
}

.crypto-tab.active {
    color: var(--text-primary);
}

.crypto-tab.active::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-green);
}

.crypto-table {
    overflow-x: auto;
}

.crypto-table table {
    width: 100%;
    border-collapse: collapse;
}

.crypto-table thead {
    border-bottom: 1px solid var(--border-light);
}

.crypto-table th {
    padding: 12px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.crypto-row {
    border-bottom: 1px solid var(--border-lighter);
    transition: all 0.3s;
}

.crypto-row:hover {
    background: rgba(0, 240, 255, 0.05);
}

.crypto-row td {
    padding: 16px 12px;
    font-size: 14px;
}

.crypto-name {
    display: flex;
    align-items: center;
    gap: 12px;
}

.crypto-name .icon {
    font-size: 20px;
}

.crypto-name .name {
    font-weight: 600;
    display: block;
}

.crypto-name .fullname {
    font-size: 12px;
    color: var(--text-secondary);
}

.price {
    font-weight: 600;
}

.change {
    font-weight: 600;
    color: #ff4444;
}

.change.up {
    color: var(--accent-green);
}

.volume {
    color: var(--text-secondary);
}

.details a {
    color: var(--accent-cyan);
    font-weight: 600;
    transition: all 0.3s;
}

.details a:hover {
    text-decoration: underline;
}

.explore-link {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.explore-link a {
    color: var(--accent-cyan);
    font-weight: 600;
    font-size: 14px;
}

.explore-link a:hover {
    text-decoration: underline;
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-lighter);
}

.faq-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.faq-title {
    font-size: 40px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 60px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--accent-cyan);
    background: rgba(0, 240, 255, 0.05);
}

.faq-item h3 {
    font-size: 16px;
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-lighter);
    padding: 60px 0 20px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    border-top: 1px solid var(--border-lighter);
    padding-top: 20px;
    text-align: center;
    font-size: 14px;
    color: var(--text-tertiary);
}

/* Responsive */
@media (max-width: 1024px) {
    .slide-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .slide-right {
        display: none;
    }

    .market-tabs {
        grid-template-columns: repeat(2, 1fr);
    }

    .market-cards {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-content {
        padding: 0 20px;
    }

    .nav {
        display: none;
    }

    .slide-title {
        font-size: 36px;
    }

    .market-tabs {
        grid-template-columns: 1fr;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }
}