:root {
    --bg: #000000;
    --fg: #ffffff;
    --gray-100: #111111;
    --gray-200: #333333;
    --gray-500: #666666;
    --gray-600: #888888;
    --gray-800: #eaeaea;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.15s ease;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 64px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 100;
    display: flex;
    align-items: center;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-weight: 700;
    font-size: 20px;
    letter-spacing: -0.5px;
}

.nav-links a {
    color: var(--gray-600);
    font-size: 14px;
    margin-left: 24px;
    font-weight: 500;
}

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

.btn-primary {
    background: var(--fg);
    color: var(--bg);
    height: 48px;
    padding: 0 32px;
    border-radius: 6px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--fg);
}

.btn-primary:hover {
    background: #ccc;
    border-color: #ccc;
}

.btn-secondary {
    background: var(--bg);
    color: var(--gray-600);
    height: 48px;
    padding: 0 32px;
    border-radius: 6px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    color: var(--fg);
    border-color: var(--fg);
}

.btn-icon {
    width: 20px;
    height: 20px;
    margin-right: 12px;
}

.hero-section {
    padding-top: 160px;
    padding-bottom: 80px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-badge {
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    padding: 4px 12px;
    border-radius: 32px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 24px;
    display: inline-block;
}

.hero-title {
    font-size: 64px;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -2px;
    margin: 0 auto 24px auto;
    background: linear-gradient(180deg, #fff 0%, #aaa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    max-width: 900px;
    text-align: center;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--gray-600);
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto 40px auto;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 80px;
}

.hero-image-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    border-radius: 12px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
    background: var(--gray-100);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, rgba(0, 0, 0, 0) 50%);
    pointer-events: none;
}

.hero-img {
    display: block;
    width: 100%;
    height: auto;
    opacity: 0.9;
}

.features-section {
    padding: 100px 0;
    border-top: 1px solid var(--gray-200);
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg);
    border: 1px solid var(--gray-200);
    padding: 32px;
    border-radius: 8px;
}

.feature-card:hover {
    border-color: var(--gray-600);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 12px 0;
}

.feature-card p {
    font-size: 15px;
    color: var(--gray-600);
    margin: 0;
    line-height: 1.5;
}

.cta-section {
    padding: 120px 0;
    text-align: center;
    border-top: 1px solid var(--gray-200);
    background: linear-gradient(180deg, var(--bg) 0%, var(--gray-100) 100%);
}

.cta-section h2 {
    font-size: 40px;
    letter-spacing: -1.5px;
    margin: 0 0 16px 0;
}

.cta-section p {
    color: var(--gray-600);
    margin: 0 0 32px 0;
}

.cta-section .btn-primary {
    display: inline-flex;
}

.footer {
    padding: 48px 0;
    border-top: 1px solid var(--gray-200);
    background: var(--bg);
}

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

.footer-logo {
    font-weight: 700;
    font-size: 16px;
    margin-right: 16px;
}

.copyright {
    color: var(--gray-600);
    font-size: 14px;
}

.footer-col.links a {
    font-size: 14px;
    color: var(--gray-600);
    margin-left: 24px;
}

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

.content-wrapper {
    max-width: 800px;
    margin: 120px auto 80px auto;
}

.content-wrapper h1 {
    font-size: 42px;
    letter-spacing: -1px;
    margin-bottom: 40px;
}

.content-wrapper h2 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--fg);
}

.content-wrapper p,
.content-wrapper ul {
    color: var(--gray-600);
    line-height: 1.7;
    font-size: 16px;
    margin-bottom: 24px;
}

.content-wrapper ul {
    padding-left: 20px;
}

.content-wrapper li {
    margin-bottom: 8px;
}

.thanks-page {
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.thanks-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeIn 0.8s ease-out;
}

.success-icon img {
    width: 64px;
    height: 64px;
    margin-bottom: 32px;
}

.steps-card {
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 32px;
    text-align: left;
    max-width: 500px;
    margin: 40px auto 0 auto;
}

.step-row {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.step-row:last-child {
    margin-bottom: 0;
}

.step-num {
    background: var(--fg);
    color: var(--bg);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    margin-right: 16px;
    flex-shrink: 0;
}

.step-text {
    font-size: 15px;
    color: var(--fg);
}

.arrow-container {
    position: absolute;
    top: 20px;
    right: 180px;
    z-index: 200;
}

.arrow-guide {
    width: 160px;
    height: auto;
    filter: brightness(0) invert(1);
    opacity: 1;
    transform: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 42px;
    }

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

    .footer-row {
        flex-direction: column;
        gap: 24px;
    }

    .footer-col.links a {
        margin: 0 12px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto 60px auto;
    }

    .arrow-container {
        display: none;
    }
}