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

:root {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-color: #6366f1;
    --text-gray: #6b7280;
    --text-light: #9ca3af;
    --border-color: #e5e7eb;
    --background-light: #f9fafb;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--primary-color);
    background-color: var(--secondary-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

nav {
    padding: 1rem 0;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    letter-spacing: -0.02em;
}

main {
    margin-top: 80px;
}

.hero {
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--background-light) 100%);
}

.hero h2 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: var(--accent-color);
    color: var(--secondary-color);
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.2);
}

.cta-button:hover {
    background: #4f46e5;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px 0 rgba(99, 102, 241, 0.3);
}

.about {
    padding: 6rem 0;
    text-align: center;
}

.about h3 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

.about p {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.contact {
    padding: 6rem 0;
    background: var(--background-light);
    text-align: center;
}

.contact h3 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.contact p {
    font-size: 1.125rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.email-link {
    display: inline-block;
    font-size: 1.25rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.email-link:hover {
    background: var(--accent-color);
    color: var(--secondary-color);
    transform: translateY(-2px);
}

footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

footer p {
    color: var(--text-light);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 4rem 0;
    }

    .hero h2 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.125rem;
    }

    .about, .contact {
        padding: 4rem 0;
    }

    .about h3, .contact h3 {
        font-size: 2rem;
    }

    .cta-button {
        padding: 0.875rem 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .about h3, .contact h3 {
        font-size: 1.75rem;
    }

    .email-link {
        font-size: 1.125rem;
        padding: 0.625rem 1.25rem;
    }
}