*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    color-scheme: light dark;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    background-color: var(--bg-color);
    color: var(--text-color);
}

:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --accent-color: #0070f3;
    --spacing: 2rem;
    --max-width: 1100px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0a0a0a;
        --text-color: #f5f5f5;
        --accent-color: #3291ff;
    }
}

header, main, footer {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing) 0;
}

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

main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 70vh;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

p {
    font-size: 1.25rem;
    color: var(--text-color);
    opacity: 0.8;
}

footer {
    font-size: 0.9rem;
    border-top: 1px solid rgba(128, 128, 128, 0.2);
    text-align: center;
}

footer p {
    font-size: 0.9rem;
}

.skip-link:focus {
    position: static !important;
    background: var(--accent-color);
    color: white;
    padding: 1rem;
}