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

:root {
    --primary-green: #00A868;
    --dark-green: #008552;
    --light-bg: #F4F4F4;
    --white: #FFFFFF;
    --black: #000000;
    --gray-100: #F8F9FA;
    --gray-200: #E9ECEF;
    --gray-300: #DEE2E6;
    --gray-400: #CED4DA;
    --gray-500: #ADB5BD;
    --gray-600: #6C757D;
    --gray-700: #495057;
    --gray-800: #343A40;
    --gray-900: #212529;
    --positive-green: #00A868;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--light-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.navbar {
    background-color: var(--white);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

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

.logo-text {
    letter-spacing: 0.5px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.2s;
}

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

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

.icon-btn {
    background: transparent;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    color: var(--gray-700);
    font-size: 14px;
    transition: color 0.2s;
}

.icon-btn:hover {
    color: var(--black);
}

.btn-primary {
    background-color: var(--primary-green);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    background-color: var(--dark-green);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--gray-900);
    border: 2px solid var(--gray-300);
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.2s, transform 0.1s;
}

.btn-secondary:hover {
    border-color: var(--gray-400);
    transform: translateY(-1px);
}

.btn-large {
    padding: 14px 28px;
    font-size: 16px;
}

.hero {
    padding: 80px 0 60px;
    background-color: var(--light-bg);
}

.hero-content {
    max-width: 700px;
}

.hero-title {
    font-size: 56px;
    line-height: 1.15;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--black);
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.6;
    color: var(--gray-600);
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.version-info {
    display: flex;
    gap: 12px;
    font-size: 13px;
    color: var(--gray-500);
    flex-wrap: wrap;
}

.feature-section {
    padding: 80px 0;
    background-color: var(--white);
}

.feature-section.alt {
    background-color: var(--light-bg);
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.feature-grid.reverse {
    direction: rtl;
}

.feature-grid.reverse > * {
    direction: ltr;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--black);
}

.section-subtitle {
    font-size: 18px;
    color: var(--primary-green);
    margin-bottom: 20px;
    font-weight: 600;
}

.feature-description {
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-600);
}

.dashboard-mockup {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--white) 100%);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.mockup-header {
    margin-bottom: 20px;
}

.mockup-tabs {
    display: flex;
    gap: 16px;
}

.tab {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--gray-600);
    cursor: pointer;
}

.tab.active {
    background-color: var(--white);
    color: var(--black);
    font-weight: 600;
}

.mockup-content {
    background-color: var(--white);
    border-radius: 12px;
    padding: 24px;
}

.balance-card {
    margin-bottom: 24px;
}

.balance-label {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.balance-amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 8px;
}

.balance-change {
    font-size: 14px;
    font-weight: 600;
}

.balance-change.positive {
    color: var(--positive-green);
}

.asset-list {
    margin-bottom: 24px;
}

.asset-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
}

.asset-item:last-child {
    border-bottom: none;
}

.asset-name {
    color: var(--gray-700);
    font-size: 14px;
}

.asset-value {
    font-weight: 600;
    color: var(--black);
    font-size: 14px;
}

.chart-area {
    height: 80px;
}

.mini-chart {
    width: 100%;
    height: 100%;
}

.device-mockup {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-900) 100%);
    border-radius: 20px;
    padding: 32px;
    max-width: 400px;
    margin: 0 auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.device-screen {
    background-color: var(--gray-800);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.device-header {
    color: var(--gray-400);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.device-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.tx-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.tx-amount {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}

.tx-usd {
    font-size: 14px;
    color: var(--gray-400);
}

.tx-timer {
    display: flex;
    gap: 8px;
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 8px;
}

.timer {
    color: var(--white);
    font-weight: 600;
}

.steps-container {
    display: flex;
    gap: 24px;
    justify-content: center;
    padding: 40px;
}

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

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--gray-200);
    color: var(--gray-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    transition: all 0.3s;
}

.step-item.active .step-number {
    background-color: var(--primary-green);
    color: var(--white);
}

.step-label {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
}

.accordion-section {
    padding: 60px 0;
    background-color: var(--light-bg);
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background-color: var(--white);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.accordion-item:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    cursor: pointer;
    user-select: none;
}

.accordion-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
}

.accordion-icon {
    font-size: 24px;
    color: var(--gray-600);
    font-weight: 300;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content.active {
    max-height: 200px;
    padding: 0 24px 24px;
}

.accordion-content p {
    color: var(--gray-600);
    line-height: 1.6;
}

.security-features {
    padding: 80px 0;
    background-color: var(--white);
}

.section-center-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--black);
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.security-card {
    background-color: var(--light-bg);
    border-radius: 16px;
    padding: 32px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.security-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.security-icon {
    width: 64px;
    height: 64px;
    background-color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary-green);
}

.security-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--black);
}

.security-card p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray-600);
}

.cta-card {
    text-align: center;
    padding: 40px;
    background-color: var(--light-bg);
    border-radius: 16px;
}

.support-section {
    padding: 80px 0;
    background-color: var(--light-bg);
    text-align: center;
}

.support-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: var(--white);
    padding: 16px 32px;
    border-radius: 50px;
    margin-top: 32px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.support-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.badge-icon {
    width: 32px;
    height: 32px;
    background-color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.footer {
    background-color: var(--gray-900);
    color: var(--gray-400);
    padding: 60px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--white);
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 14px;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: background-color 0.2s, color 0.2s;
}

.social-links a:hover {
    background-color: var(--primary-green);
    color: var(--white);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

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

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

.footer-column a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--gray-800);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
}

.footer-legal {
    display: flex;
    gap: 12px;
    align-items: center;
}

.footer-legal a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-legal a:hover {
    color: var(--white);
}

@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 42px;
    }

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

@media (max-width: 768px) {
    .nav-actions {
        flex-wrap: wrap;
        gap: 8px;
    }

    .nav-actions .icon-btn {
        display: none;
    }

    .hero {
        padding: 48px 0 40px;
    }

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

    .hero-subtitle {
        font-size: 16px;
    }

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

    .hero-actions button {
        width: 100%;
        justify-content: center;
    }

    .feature-section {
        padding: 48px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .section-center-title {
        font-size: 28px;
    }

    .steps-container {
        padding: 24px;
    }

    .step-number {
        width: 50px;
        height: 50px;
        font-size: 16px;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .section-center-title {
        font-size: 24px;
    }

    .steps-container {
        flex-wrap: wrap;
        gap: 16px;
    }

    .dashboard-mockup {
        padding: 16px;
    }

    .balance-amount {
        font-size: 24px;
    }
}