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

:root {
    --primary-color: #1DA1F2;
    --primary-dark: #1a8cd8;
    --secondary-color: #14171A;
    --text-color: #14171A;
    --text-light: #657786;
    --background: #FFFFFF;
    --card-background: #F7F9FA;
    --gradient-1: #667eea;
    --gradient-2: #764ba2;
    --gradient-3: #f093fb;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    opacity: 0.03;
    z-index: -1;
}

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

header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--gradient-1);
}

.nav-links a.btn-secondary, .nav-links a.btn-secondary:hover {
    color: var(--background);
}

.hero {
    padding: 100px 0 120px;
    text-align: center;
}

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

h1 {
    font-size: 72px;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.subtitle {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 24px;
    font-style: italic;
}

.hero-description {
    font-size: 24px;
    color: var(--text-color);
    margin-bottom: 48px;
    font-weight: 500;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 48px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
    color: white;
    padding: 16px 40px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(102, 126, 234, 0.4);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--gradient-1);
    padding: 16px 40px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    border: 2px solid var(--gradient-1);
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-outline:hover {
    background: var(--gradient-1);
    color: white;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--gradient-1);
    color: white;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.tagline {
    font-size: 20px;
    font-style: italic;
    color: var(--text-light);
    font-weight: 500;
}

.features {
    padding: 80px 0;
    background: var(--card-background);
}

.features h2,
.audience h2,
.final-cta h2 {
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 64px;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.15);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-color);
}

.feature-card ul {
    list-style: none;
}

.feature-card li {
    margin-bottom: 12px;
    color: var(--text-light);
    line-height: 1.7;
}

.feature-card li strong {
    color: var(--text-color);
    font-weight: 600;
}

.audience {
    padding: 80px 0;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.audience-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.audience-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(102, 126, 234, 0.15);
}

.audience-check {
    font-size: 48px;
    margin-bottom: 16px;
}

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

.audience-card p {
    color: var(--text-light);
}

.final-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
    color: white;
    text-align: center;
}

.final-cta h2 {
    color: white;
    -webkit-text-fill-color: white;
}

.cta-description {
    font-size: 24px;
    margin-bottom: 8px;
    font-weight: 500;
}

.cta-subtext {
    font-size: 18px;
    margin-bottom: 48px;
    font-style: italic;
    opacity: 0.9;
}

.waitlist-form {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.waitlist-form input {
    flex: 1;
    padding: 16px 24px;
    border-radius: 12px;
    border: none;
    font-size: 16px;
    font-family: inherit;
}

.waitlist-form input:focus {
    outline: 3px solid rgba(255, 255, 255, 0.3);
}

.waitlist-form .btn-primary {
    background: white;
    color: var(--gradient-1);
}

.waitlist-form .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    color: white;
    background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
}

.btn-outline-light {
    background: transparent;
    color: white;
    padding: 16px 40px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    border: 2px solid white;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-outline-light:hover {
    background: white;
    color: var(--gradient-1);
    transform: translateY(-2px);
}

footer {
    padding: 40px 0;
    text-align: center;
    background: var(--secondary-color);
    color: white;
}

@media (max-width: 768px) {
    h1 {
        font-size: 48px;
    }

    .subtitle {
        font-size: 22px;
    }

    .hero-description {
        font-size: 18px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .waitlist-form {
        flex-direction: column;
    }

    .nav-links {
        gap: 16px;
        font-size: 14px;
    }

    .features h2,
    .audience h2,
    .final-cta h2 {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 36px;
    }

    .logo {
        font-size: 20px;
    }
}