:root {
    --color-text: #333333;
    --color-primary: #2c3e50;
    --color-secondary: #7f8c8d;
    --font-main: "Cantarell", sans-serif;
    --font-weight-bold: 800;
    --font-weight-semibold: 700;
    --max-width: 700px;
    --content-padding: 10px;
}

/* Font definition with performance optimizations */
@font-face {
    font-family: "Cantarell";
    src: url('./Cantarell-VF.woff2') format('woff2');
    font-weight: 500 800;
    font-style: normal;
    font-display: swap;
}

/* Base styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font-main);
    color: var(--color-text);
    word-wrap: break-word;
}

/* Layout */
html, body {
    min-height: 100vh;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--content-padding);
    background-color: #ffffff;
}

/* Main content */
main {
    max-width: var(--max-width);
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding: var(--content-padding);
}

main * {
    width: 90%;
    margin-bottom: 1.5rem;
}

main section {
    margin-bottom: 0;
}

/* Typography */
h1 {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    font-size: 2.5rem;
    line-height: 1.2;
}

h2, h3 {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

h2 {
    font-size: 1.8rem;
}

h3 {
    font-size: 1.4rem;
}

/* Lists */
ol {
    padding-left: 1.5rem;
}

ol li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

/* Links and interactive elements */
a, button {
    color: var(--color-primary);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

a:hover, a:focus {
    color: var(--color-secondary);
    text-decoration: underline;
    outline: none;
}

/* Focus styles for accessibility */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

/* Animation for main content */
main {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Responsive design */
@media (max-width: 768px) {
    :root {
        --max-width: 100%;
        --content-padding: 15px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    main > * {
        width: 95%;
    }
}

@media (max-width: 480px) {
    :root {
        --content-padding: 10px;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.3rem;
    }
}

/* Print styles */
@media print {
    body {
        background-color: transparent;
        color: #000;
    }

    a {
        color: #000;
        text-decoration: underline;
    }
}