/* General Styles */
body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--header-background-color);
    color: var(--header-text-color);
}

header .logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

header .logo img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 20px;
}

nav ul li a {
    text-decoration: none;
    color: var(--header-link-color);
    font-weight: bold;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--header-link-hover-color);
}

nav ul li a.active {
    text-decoration: underline;
    color: var(--header-link-hover-color);
}

main {
    padding: 30px;
    text-align: center;
}

.welcome-section {
    margin: 30px 0;
}

.welcome-section h2 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.welcome-section p {
    font-size: 16px;
    margin-bottom: 20px;
}

.welcome-section .btn {
    display: inline-block;
    padding: 12px 25px;
    background-color: var(--primary-color);
    color: var(--button-text-color);
    text-decoration: none;
    font-weight: bold;
    border-radius: 8px;
    transition: background-color 0.3s, transform 0.2s;
}

.welcome-section .btn:hover {
    background-color: var(--primary-hover-color);
    transform: scale(1.05);
}

.features-section {
    margin: 50px 0;
}

.features-section h2 {
    font-size: 24px;
    margin-bottom: 20px;
}

.features {
    display: flex;
    justify-content: space-around;
    gap: 20px;
    flex-wrap: wrap;
}

.features .feature {
    background-color: var(--feature-background-color);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    flex: 1;
    max-width: 300px;
    transition: transform 0.2s, box-shadow 0.3s;
}

.features .feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

.features .feature h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.features .feature p {
    font-size: 14px;
    color: var(--text-secondary-color);
}

footer {
    text-align: center;
    padding: 15px 0;
    background-color: var(--footer-background-color);
    color: var(--footer-text-color);
    font-size: 14px;
    margin-top: 30px;
}
.theme-toggle {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.theme-toggle input {
    display: none;
}

.theme-toggle .slider {
    width: 50px;
    height: 25px;
    background-color: var(--header-link-color);
    border-radius: 15px;
    position: relative;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: background-color 0.3s ease-in-out;
}

.theme-toggle .slider:before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--button-text-color);
    border-radius: 50%;
    top: 2.5px;
    left: 2.5px;
    transition: transform 0.3s ease-in-out;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.theme-toggle input:checked + .slider {
    background-color: var(--primary-color);
}

.theme-toggle input:checked + .slider:before {
    transform: translateX(25px);
}

.theme-toggle .slider .sun,
.theme-toggle .slider .moon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    pointer-events: none;
}

.theme-toggle .slider .sun {
    left: 8px;
    color: #fbc02d;
}

.theme-toggle .slider .moon {
    right: 8px;
    color: #90caf9;
}

.theme-toggle input:checked + .slider .sun {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.theme-toggle input:not(:checked) + .slider .moon {
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.theme-profile-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.profile-icon img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.3s;
}

.profile-icon img:hover {
    transform: scale(1.1);
}


@media (max-width: 768px) {
    nav ul {
        gap: 15px;
    }

    .features {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .features .feature {
        max-width: 90%;
    }
}

@media (max-width: 480px) {
    header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }

    header .logo img {
        width: 40px;
        height: 40px;
    }

    header h1 {
        font-size: 18px;
    }

    .welcome-section h2 {
        font-size: 22px;
    }

    .welcome-section p {
        font-size: 14px;
    }

    .features-section h2 {
        font-size: 20px;
    }

    footer {
        font-size: 12px;
    }
}

/* Light Theme Variables */
:root {
    --background-color: #f5f5f5;
    --text-color: #333;
    --text-secondary-color: #555;
    --primary-color: #4CAF50;
    --primary-hover-color: #45a049;
    --header-background-color: #4CAF50;
    --header-text-color: #fff;
    --header-link-color: #fff;
    --header-link-hover-color: #dfffd6;
    --feature-background-color: #fff;
    --button-text-color: #fff;
    --footer-background-color: #333;
    --footer-text-color: #fff;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --background-color: #121212;
    --text-color: #e0e0e0;
    --text-secondary-color: #bdbdbd;
    --primary-color: #81c784;
    --primary-hover-color: #66bb6a;
    --header-background-color: #2e7d32;
    --header-text-color: #fff;
    --header-link-color: #fff;
    --header-link-hover-color: #aed581;
    --feature-background-color: #1e1e1e;
    --button-text-color: #000;
    --footer-background-color: #1c1c1c;
    --footer-text-color: #fff;
}