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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #000;
    color: #fff;
    line-height: 1.6;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 24px;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    transition: opacity 0.3s;
}

.nav-menu a:hover {
    opacity: 0.7;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, #8B5CF6, #C084FC);
    color: #fff;
    border: none;
    padding: 12px 28px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.2);
    padding: 10px 26px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.05);
}

/* Hero Section */
.hero {
    padding: 180px 20px 100px;
    text-align: left;
}

.hero-title {
    font-size: 64px;
    font-weight: bold;
    line-height: 1.1;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, #8B5CF6, #C084FC);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.version-text {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* Feature Cards */
.feature-card {
    padding: 40px 20px;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 30px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-large {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 60px;
    align-items: center;
}

.card-large.reverse {
    grid-template-columns: 1fr 1fr;
}

.card-large.reverse .card-image {
    order: -1;
}

.card-content h2 {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 20px;
}

.card-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.card-image {
    border-radius: 20px;
    padding: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.bg-purple {
    background: linear-gradient(135deg, #A78BFA, #C084FC);
}

.bg-light {
    background: linear-gradient(135deg, #F3F4F6, #E5E7EB);
}

/* Device Mockups */
.device-mockup {
    display: flex;
    gap: 30px;
    align-items: center;
}

.ledger-device {
    width: 120px;
    height: 300px;
    background: linear-gradient(135deg, #1F2937, #374151);
    border-radius: 15px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.phone-mockup {
    width: 180px;
    height: 380px;
    background: #000;
    border-radius: 30px;
    border: 8px solid #1F2937;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.device-group {
    display: flex;
    gap: 40px;
    align-items: center;
}

.ledger-hardware {
    width: 140px;
    height: 200px;
    background: linear-gradient(135deg, #1F2937, #111827);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.verification-ring {
    width: 120px;
    height: 120px;
    border: 4px solid #10B981;
    border-radius: 50%;
    position: relative;
}

.verification-ring::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    color: #10B981;
}

/* Setup Steps */
.setup-steps {
    display: flex;
    gap: 30px;
    align-items: center;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.step-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: bold;
    background: rgba(255, 255, 255, 0.2);
    color: #9CA3AF;
}

.step-complete .step-icon {
    background: #10B981;
    color: #fff;
}

.step-active .step-icon {
    background: #059669;
    color: #fff;
}

.step span {
    font-size: 13px;
    color: #6B7280;
}

/* Feature List */
.feature-list {
    padding: 40px 20px;
}

.list-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 30px 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    margin-bottom: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
    cursor: pointer;
}

.list-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(10px);
}

.list-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #374151, #1F2937);
    border-radius: 12px;
    flex-shrink: 0;
}

.list-content {
    flex: 1;
}

.list-content h3 {
    font-size: 20px;
    margin-bottom: 5px;
}

.list-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.arrow {
    font-size: 24px;
    color: rgba(255, 255, 255, 0.3);
}

/* Security Section */
.security-section {
    padding: 80px 20px;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.security-intro {
    grid-column: 1 / -1;
}

.security-intro h2 {
    font-size: 42px;
    font-weight: bold;
    max-width: 500px;
}

.security-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    transition: all 0.3s;
}

.security-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.card-icon {
    font-size: 36px;
    margin-bottom: 20px;
}

.security-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.security-card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

.card-highlight {
    background: linear-gradient(135deg, #047857, #059669);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-discover {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-discover:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(45deg);
}

/* Coins Section */
.coins-section {
    padding: 80px 20px;
    text-align: center;
}

.coins-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.coin-icon {
    font-size: 48px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.coins-title {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 30px;
}

.search-bar {
    max-width: 500px;
    margin: 0 auto;
}

.search-bar input {
    width: 100%;
    padding: 18px 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: all 0.3s;
}

.search-bar input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.search-bar input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(139, 92, 246, 0.5);
}

/* Footer */
.footer {
    padding: 80px 20px 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 80px;
}

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

.footer-logo {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
}

.footer-column h4 {
    font-size: 13px;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 20px;
}

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

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: #fff;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.cookies-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.cookies-link:hover {
    color: #fff;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }

    .card-large {
        grid-template-columns: 1fr;
        padding: 40px;
    }

    .card-large.reverse .card-image {
        order: 0;
    }

    .card-content h2 {
        font-size: 32px;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 15px 20px;
    }

    .nav-menu {
        display: none;
    }

    .hero {
        padding: 140px 20px 60px;
    }

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

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons button {
        width: 100%;
    }

    .card-large {
        padding: 30px 20px;
    }

    .card-content h2 {
        font-size: 28px;
    }

    .card-image {
        padding: 30px;
        min-height: 300px;
    }

    .device-mockup,
    .device-group {
        flex-direction: column;
        gap: 20px;
    }

    .setup-steps {
        gap: 15px;
    }

    .step-icon {
        width: 50px;
        height: 50px;
        font-size: 18px;
    }

    .list-card {
        padding: 20px;
    }

    .list-content h3 {
        font-size: 18px;
    }

    .security-intro h2 {
        font-size: 32px;
    }

    .security-card {
        padding: 30px;
    }

    .coins-title {
        font-size: 32px;
    }

    .coins-grid {
        gap: 15px;
    }

    .coin-icon {
        width: 60px;
        height: 60px;
        font-size: 36px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .card-content h2 {
        font-size: 24px;
    }

    .card-content p {
        font-size: 15px;
    }

    .security-intro h2,
    .coins-title {
        font-size: 26px;
    }
}