/* style.css */

:root {
    --bg-color: #0d1117;
    --card-color: #161b22;
    --accent-color: #2f81f7;
    --text-color: #e6edf3;
    --subtext-color: #8b949e;
    --radius: 12px;
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    text-decoration: none;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--card-color);
    box-shadow: var(--shadow);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    padding: 5rem 2rem;
    text-align: center;
    background: radial-gradient(ellipse at top, #1f2733, #0d1117);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero h1 span {
    color: var(--accent-color);
}

.hero p {
    color: var(--subtext-color);
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

.btn {
    background-color: var(--accent-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.btn:hover {
    background-color: #1a61c1;
}

/* Courses Section */
.courses {
    padding: 4rem 2rem;
    background-color: var(--bg-color);
}

.courses h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.course-list {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.course-card {
    background-color: var(--card-color);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-5px);
    background-color: #21262d;
}

.course-card h3 {
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

/* About Section */
.about {
    padding: 4rem 2rem;
    text-align: center;
    background-color: var(--bg-color);
}

.about h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.about p {
    max-width: 700px;
    margin: auto;
    color: var(--subtext-color);
    font-size: 1.1rem;
}

.course-layout {
    display: flex;
    min-height: 100vh;
    padding-top: 1.8rem;
}

.sidebar {
    width: 250px;
    background-color: var(--card-color);
    padding: 4.5rem 1rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.sidebar h2 {
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}
.accent-color-text {
    font-size: 1.2rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}
.sidebar input {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border: none;
    border-radius: var(--radius);
    background-color: #20262f;
    color: var(--text-color);
}

.sidebar a {
    display: block;
    color: var(--subtext-color);
    text-decoration: none;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    transition: var(--transition);
}

.sidebar a:hover {
    color: var(--accent-color);
}
.menu{
    position: fixed;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--card-color);
    box-shadow: var(--shadow);
    left: 0;right: 0;top: 0;
    z-index: 999;
}
.sidebar-toggle {
    display: none;
    position: relative;
    left: 1rem;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    z-index: 999;
}

.theme-toggle {
    position: relative;
    right: 1rem;
    font-size: 1.2rem;
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    z-index: 999;
}

.course-content {
    flex: 1;
    padding: 2rem;
    background-color: var(--bg-color);
}

.course-content h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.course-content h2 {
    color: var(--accent-color);
    margin-top: 2rem;
}

.course-content p {
    margin: 1rem 0;
    color: var(--text-color);
}

.code-block {
    background-color: #0e1525;
    border-radius: var(--radius);
    overflow-x: auto;
    margin-top: 1rem;
}

pre code {
    display: block;
    padding: 1rem;
    font-family: monospace;
}

@media (max-width: 768px) {
    .course-layout {
        flex-direction: column;
    }

    .sidebar {
        position: fixed;
        transform: translateX(-100%);
        height: 100vh;
        z-index: 998;
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar-toggle {
        display: block;
        
    }
}

/* Footer */
footer {
    padding: 2rem;
    text-align: center;
    background-color: var(--card-color);
    color: var(--subtext-color);
    font-size: 0.9rem;
}