:root {
    --color-primary: #0073e6;
    --color-primary-dark: #005bb5;
    --color-accent: #ff9800;
    --color-bg: #fff;
    --color-bg-dark: #181a1b;
    --color-header-dark: #222c36;
    --color-footer: #333;
    --color-footer-dark: #222c36;
    --color-link-dark: #4fc3f7;
    --color-link-visited-dark: #90caf9;
    --color-link-hover-dark: #fff176;
    --color-code-bg: #f6f8fa;
    --color-code-bg-dark: #23272e;
}

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background: var(--color-bg);
    color: #222c36;
}
body.dark-mode {
    background: var(--color-bg-dark);
    color: #e0e0e0;
}

header {
    background: var(--color-primary);
    color: #fff;
    padding: 1rem 1.5rem;
    text-align: center;
}
body.dark-mode header {
    background: var(--color-header-dark);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
}
header p {
    margin: 0.5rem 0 0;
    font-size: 1rem;
}

.header-footer-link {
    text-decoration: none;
    display: block;
}

main {
    padding: 1rem 1.5rem;
}
body.dark-mode main {
    background: var(--color-bg-dark);
    color: #e0e0e0;
}

footer {
    background: var(--color-footer);
    color: #fff;
    text-align: center;
    padding: 1rem 1.5rem;
    margin-top: 2rem;
}
body.dark-mode footer {
    background: var(--color-footer-dark);
    color: #bbb;
}
footer p {
    margin: 0;
    font-size: 0.9rem;
}

a {
    color: var(--color-primary);
    transition: color 0.2s;
}
a:visited {
    color: var(--color-primary-dark);
}
a:hover, a:focus-visible {
    color: var(--color-accent);
}
body.dark-mode a {
    color: var(--color-link-dark);
}
body.dark-mode a:visited {
    color: var(--color-link-visited-dark);
}
body.dark-mode a:hover, body.dark-mode a:focus-visible {
    color: var(--color-link-hover-dark);
}

.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: var(--color-bg);
    color: #222c36;
    border: none;
    border-radius: 20px;
    padding: 0.3rem 1rem;
    font-size: 1rem;
    cursor: pointer;
    z-index: 100;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}
.theme-toggle:hover, .theme-toggle:focus-visible {
    box-shadow: 0 0 0 2px var(--color-accent);
    background: var(--color-code-bg);
}
body.dark-mode .theme-toggle {
    color: #fff;
}
body.dark-mode .theme-toggle:hover, body.dark-mode .theme-toggle:focus-visible {
    box-shadow: 0 0 0 2px var(--color-link-hover-dark);
}

/* Migliora la visualizzazione dei blocchi di codice su mobile */
pre, code, .highlight {
    max-width: 100vw;
    overflow-x: auto;
    word-break: break-word;
    white-space: pre-wrap;
    -webkit-overflow-scrolling: touch;
    background: var(--color-code-bg);
    border-radius: 6px;
    margin: 3px;
}
body.dark-mode pre, body.dark-mode code, body.dark-mode .highlight {
    background: var(--color-code-bg-dark);
    color: #e0e0e0;
}

pre {
    position: relative;
}

.copy-button {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: var(--color-bg);
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 2px 5px;
    cursor: pointer;
    font-size: 1.5em;
    color: #333;
    z-index: 100;
    transition: background-color 0.3s;
}
.dark-mode .copy-button {
    background-color: var(--color-bg-dark);
    border-color: #555;
    color: #fff;
}
.copy-button:hover {
    background-color: #ddd;
}
.dark-mode .copy-button:hover {
    background-color: #444;
}

/* Layout responsive */
button {
    transition: transform 0.2s;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    background-color: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

button:active {
    transform: translateZ(0) scale(0.95);
}
button {
    transition: transform 0.2s;
}

button:active {
    transform: translateZ(0) scale(0.95);
}
@media (max-width: 768px) {
    header h1 {
        font-size: 1.5rem;
    }
    header p {
        font-size: 0.9rem;
    }
    main {
        padding: 1rem;
    }
    footer {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.2rem;
    }
    header p {
        font-size: 0.8rem;
    }
    footer {
        font-size: 0.7rem;
    }
}