:root {
    --background-color: #f4f4f9;
    --text-color: #333;
    --nav-background-color: #333;
    --nav-text-color: #fff;
    --welcome-background-color: #4CAF50;
    --welcome-text-color: #fff;
    --button-background-color: #575757;
    --transition-time: 0.5s;
}
body.dark-mode {
    --background-color: #1f1f1f;
    --text-color: #e0e0e0;
    --nav-background-color: #111;
    --nav-text-color: #e0e0e0;
    --welcome-background-color: #333;
    --welcome-text-color: #e0e0e0;
    --button-background-color: #444;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}
body {
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    padding-top: 20px;
    transition: background-color var(--transition-time), color var(--transition-time);
}
html {
    overflow: -moz-scrollbars-none;
    scrollbar-width: none;
}

html::-webkit-scrollbar {
    display: none;
}
body {
    overflow: hidden;
    height: 100vh;
    overflow-y: auto;
}
nav {
    background-color: var(--nav-background-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
    border-bottom: #6e6e6e solid 4px;
    transition: background-color var(--transition-time);
}
.logo {
    color: var(--nav-text-color);
    font-size: 1.5rem;
    font-weight: bold;
    transition: color var(--transition-time);
}
.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    position: fixed;
    right: -100%;
    top: 0;
    height: 100%;
    width: 250px;
    background-color: var(--nav-background-color);
    flex-direction: column;
    justify-content: center;
    transition: right 0.3s ease-in-out, background-color var(--transition-time);
}
.nav-links.active {
    right: 0;
}
.nav-links a {
    color: var(--nav-text-color);
    text-decoration: none;
    padding: 0.75rem 1rem;
    font-size: 1.2rem;
    transition: background 0.3s, color var(--transition-time);
    display: block;
    width: 100%;
    text-align: center;
}
.nav-links a:hover {
    background-color: var(--button-background-color);
    border-radius: 5px;
}
.menu-toggle {
    font-size: 2rem;
    cursor: pointer;
    color: var(--nav-text-color);
    display: block;
    z-index: 1001;
}
section {
    margin-top: 150px;
    padding: 2rem;
    text-align: center;
}
.construction {
    font-family: "Pirata One", system-ui;
    font-size: 50px;
}
h1 {
    font-size: 2.5rem;
    color: var(--text-color);
    transition: color var(--transition-time);
}
p {
    font-size: 1.2rem;
    margin-top: 1rem;
    color: var(--text-color);
    transition: color var(--transition-time);
}
#welcome-message {
    background-color: var(--welcome-background-color);
    color: var(--welcome-text-color);
    padding: 20px;
    text-align: center;
    position: fixed;
    width: 100%;
    top: 75px;
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: translateY(0);
}
#welcome-message span {
    font-size: 1.2rem;
    font-weight: bold;
}
#welcome-message button {
    background: none;
    border: none;
    color: var(--welcome-text-color);
    font-size: 1.8rem;
    margin-left: 20px;
    cursor: pointer;
}
#dark-mode-toggle {
    position: fixed;
    bottom: 20px;
    right: 30px;
    background-color: var(--button-background-color);
    border: none;
    color: var(--nav-text-color);
    border: 2px solid #fff;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 5px;
    z-index: 1000;
    transition: background-color var(--transition-time), color var(--transition-time);
}
@media (min-width: 769px) {
    .nav-links {
        position: static;
        flex-direction: row;
        height: auto;
        width: auto;
        justify-content: flex-end;
        background-color: transparent;
    }
    .menu-toggle {
        display: none;
    }
    .nav-links li {
        margin-left: 20px;
    }
    .nav-links a {
        font-size: 1rem;
    }
}
.fade {
    transition: opacity 0.5s ease;
    opacity: 1;
}
.fade[style*="opacity: 0"] {
    opacity: 0;
}
@media (max-width: 768px) {
    #home {
        margin-top: calc(70px + 50px); 
    }
    nav {
        padding: 1rem;
    }
    .logo {
        font-size: 1.2rem;
    }
    .menu-toggle {
        font-size: 1.5rem;
    }
    .nav-links {
        width: 100%;
        height: 100vh;
        background-color: #333;
        right: -100%;
        top: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .nav-links a {
        font-size: 1.5rem;
        padding: 1rem 0;
    }
    #welcome-message {
        font-size: 1rem;
        padding: 15px;
        top: 65px;
    }
    #welcome-message span {
        font-size: 1rem;
    }
    h1 {
        font-size: 2rem;
    }
    p {
        font-size: 1rem;
    }
    section {
        padding: 1.5rem;
        margin-top: 130px; 
    }
}