/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #18DFDF;
    --background: #ffffff;
    --foreground: #000000;
    --foreground-light: #666666;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #000000;
        --foreground: #ffffff;
        --foreground-light: #999999;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    color: var(--foreground);
    background-color: var(--background);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    padding: 2rem 0;
    width: 100%;
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    transition: opacity 0.2s ease;
    display: inline-block;
}

.logo:hover {
    opacity: 0.7;
}

.logo-img {
    height: 2.5rem;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--foreground);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

/* Main Section */
main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Hero Section */
.hero {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--foreground);
    max-width: 900px;
}

.hero-title .highlight {
    color: var(--primary-color);
    font-weight: 600;
}

/* Footer */
.footer {
    padding: 2rem 0;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-link {
    color: var(--foreground-light);
    text-decoration: none;
    font-size: 0.9rem;
    transition: opacity 0.2s ease;
}

.footer-link:hover {
    opacity: 0.7;
}

.footer-copyright {
    color: #666666;
    font-size: 0.9rem;
    margin: 0;
    text-align: center;
}

@media (prefers-color-scheme: dark) {
    .footer-copyright {
        color: #999999;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        padding: 0 1.5rem;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .hero {
        padding: 2rem 1.5rem;
    }

    .hero-title {
        font-size: clamp(1.5rem, 6vw, 3rem);
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 0 1rem;
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .footer {
        padding: 1.5rem 1rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: var(--background);
}

::-moz-selection {
    background: var(--primary-color);
    color: var(--background);
}