* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background: linear-gradient(45deg, #ff006e, #8338ec, #3a86ff, #ff006e);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: -20% -20% auto auto;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle at 30% 30%, rgba(255, 0, 110, 0.3), transparent 45%),
                radial-gradient(circle at 70% 60%, rgba(131, 56, 236, 0.3), transparent 40%);
    filter: blur(80px);
    opacity: 0.9;
    z-index: -1;
    animation: bgFloat 18s ease-in-out infinite alternate;
}

body::after {
    content: '';
    position: fixed;
    inset: auto auto -20% -20%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle at 50% 50%, rgba(58, 134, 255, 0.3), transparent 50%);
    filter: blur(80px);
    opacity: 0.8;
    z-index: -1;
    animation: bgFloat 20s ease-in-out infinite alternate-reverse;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background: #000;
    border-bottom: 3px solid;
    border-image: linear-gradient(90deg, #ff006e, #8338ec, #3a86ff, #ff006e) 1;
    border-image-slice: 1;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.5);
    animation: slideDown 0.8s ease-out;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h2 {
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite, pulse 2s infinite;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    background: linear-gradient(135deg, #ff006e, #3a86ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    animation: fadeIn 1s ease-in, gradientShift 4s ease infinite;
}

.nav-link:hover,
.nav-link.active {
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 2s ease infinite;
    filter: drop-shadow(0 0 8px rgba(255, 0, 110, 0.6));
    transform: scale(1.1);
}

.login-btn {
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite, bounceIn 1.2s;
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: bold;
    border: none;
}

.login-btn:hover {
    background: linear-gradient(135deg, #3a86ff, #8338ec, #ff006e);
    background-size: 200% 200%;
    animation: gradientShift 1.5s ease infinite;
    color: #ffffff !important;
    -webkit-text-fill-color: #ffffff;
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 5px 20px rgba(255, 0, 110, 0.6), 0 5px 15px rgba(58, 134, 255, 0.4);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: linear-gradient(90deg, #ff006e, #3a86ff);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: #000000;
    color: white;
    padding: 150px 0 100px;
    text-align: center;
    margin-top: 60px;
    border-bottom: 2px solid #333;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: blur(15px);
    opacity: 0.3;
    z-index: -1;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInDown 1s;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1.2s;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 600;
}

.btn-primary {
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
    color: #fff;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 30px rgba(255, 0, 110, 0.5), 0 5px 20px rgba(58, 134, 255, 0.4);
    animation: gradientShift 1.5s ease infinite, pulse 0.5s;
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid;
    border-image: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff) 1;
    position: relative;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    background-size: 200% 200%;
    animation: gradientShift 2s ease infinite;
    color: #fff;
    border: none;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 4s ease infinite;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #ff006e, #8338ec, #3a86ff);
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
    margin: 1rem auto;
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(255, 0, 110, 0.5);
}

/* About Section */
.about {
    background: #000000;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: blur(20px);
    opacity: 0.2;
    z-index: -1;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #fff;
}

.about-text p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: #ccc;
}

.stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-item h4 {
    font-size: 2.5rem;
    color: #ffffff;
    margin-bottom: 0.5rem;
    animation: countUp 2s ease-out;
}

.stat-item p {
    color: #ccc;
    font-size: 1rem;
}

.image-placeholder {
    background: linear-gradient(135deg, #333 0%, #000 100%);
    border: 3px solid #000000;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    position: relative;
    transition: all 0.4s ease;
    cursor: pointer;
}

.image-placeholder:hover {
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 
                0 10px 30px rgba(0, 0, 0, 0.6),
                0 5px 15px rgba(0, 0, 0, 0.4);
    transform: translateY(-5px);
    border-color: #000000;
}

.image-placeholder::before {
    display: none;
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Courses Section */
.courses {
    background: #000000;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.course-card {
    background: #000000;
    border: 1px solid rgba(79, 70, 229, 0.3);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transition: all 0.4s ease;
    animation: fadeInUp 0.8s ease-out;
}

.course-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.4), 0 0 40px rgba(79, 70, 229, 0.3);
    border-color: rgba(79, 70, 229, 0.6);
}

.course-image {
    height: 200px;
    background: linear-gradient(135deg, #333 0%, #000 100%);
    position: relative;
    overflow: hidden;
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.course-card:hover .course-image img {
    transform: scale(1.1);
}

.course-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 0, 110, 0.4);
}

.course-content {
    padding: 1.5rem;
}

.course-content h3 {
    margin-bottom: 0.5rem;
    color: #fff;
}

.course-content p {
    color: #ccc;
    margin-bottom: 1rem;
}

.course-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #999;
}

/* Subjects Section */
.subjects {
    background: #000000;
    position: relative;
}

.subjects::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: blur(20px);
    opacity: 0.2;
    z-index: -1;
}

.subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.subject-card {
    background: linear-gradient(135deg, #000000 0%, #1a1a2e 100%);
    padding: 2rem;
    text-align: center;
    border-radius: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transition: all 0.4s ease;
    animation: zoomIn 0.6s ease-out;
    border: 1px solid rgba(79, 70, 229, 0.3);
}

.subject-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.4), 0 0 40px rgba(79, 70, 229, 0.3);
    border-color: rgba(79, 70, 229, 0.6);
}

.subject-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ff006e, #8338ec, #3a86ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: bounce 2s infinite, gradientShift 3s ease infinite;
    transition: transform 0.3s;
}

.subject-card:hover .subject-icon {
    transform: scale(1.3) rotate(360deg);
}

.subject-card h3 {
    margin-bottom: 0.5rem;
    color: #fff;
}

.subject-card p {
    background: linear-gradient(135deg, #ff006e, #3a86ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* Video Section */
.videos {
    background: #000000;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.video-card {
    background: #000000;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transition: all 0.4s ease;
    animation: slideInLeft 0.8s ease-out;
    border: 1px solid rgba(79, 70, 229, 0.3);
}

.video-card:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.4), 0 0 40px rgba(79, 70, 229, 0.3);
    border-color: rgba(79, 70, 229, 0.6);
}

.video-thumbnail {
    position: relative;
    cursor: pointer;
}

.video-thumbnail img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.video-card:hover .video-thumbnail img {
    transform: scale(1.15);
}

.video-duration {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.8);
    color: #ffffff;
    padding: 0.3rem 0.7rem;
    border-radius: 5px;
    font-size: 0.85rem;
    border: 1px solid #ffffff;
}

.video-card h3 {
    padding: 1rem 1.5rem 0.5rem;
    color: #fff;
}

.video-card p {
    padding: 0 1.5rem 1.5rem;
    color: #ccc;
}

/* Contact Section */
.contact {
    background: #000000;
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    filter: blur(20px);
    opacity: 0.2;
    z-index: -1;
}

.contact .section-subtitle {
    text-align: center;
    color: #ccc;
    max-width: 600px;
    margin: -1rem auto 3rem;
    font-size: 1.1rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

.contact-info {
    background: linear-gradient(135deg, #000000 0%, #1a1a2e 100%);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    animation: fadeInLeft 1s ease-out;
    border: 1px solid rgba(79, 70, 229, 0.3);
    transition: all 0.4s ease;
}

.contact-info h3 {
    margin-bottom: 0.5rem;
    color: #ffffff;
    font-size: 1.8rem;
}

.contact-desc {
    color: #ccc;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #252525;
    border-radius: 15px;
    transition: all 0.3s;
    border: 1px solid #333;
    width: 100%;
    overflow: hidden;
}

.info-details {
    flex: 1;
    min-width: 0;
}

.info-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

.info-icon {
    font-size: 2rem;
    min-width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    color: #000;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(255, 255, 255, 0.3);
}

.info-details strong {
    display: block;
    margin-bottom: 0.5rem;
    color: #ffffff;
    font-size: 1.1rem;
}

.info-details p {
    color: #ccc;
    font-size: 0.95rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
    max-width: 100%;
}

.social-links {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 2px solid #333;
}

.social-links h4 {
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    color: #000;
    border-radius: 50%;
    font-size: 1.3rem;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 4px 10px rgba(255, 255, 255, 0.2);
}

.social-icon:hover {
    transform: translateY(-5px) rotate(360deg);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.4);
    background: #fff;
}

.contact-form {
    background: linear-gradient(135deg, #000000 0%, #1a1a2e 100%);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    animation: fadeInRight 1s ease-out;
    border: 1px solid rgba(79, 70, 229, 0.3);
    transition: all 0.4s ease;
}

.contact-form h3 {
    color: #ffffff;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid #333;
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s;
    background: #252525;
    color: #fff;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
    background: #333;
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    width: 100%;
    margin-top: 1rem;
    background: #ffffff;
    color: #000;
    font-size: 1.1rem;
    padding: 1.2rem;
    font-weight: bold;
}

.contact-form .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.4);
    background: #fff;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    animation: fadeIn 0.3s;
}

.modal-content {
    background: rgba(30, 30, 30, 0.8);
    margin: 10% auto;
    padding: 2rem;
    border-radius: 15px;
    width: 90%;
    max-width: 400px;
    position: relative;
    animation: slideIn 0.3s;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
    border: 1px solid #333;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.close {
    position: absolute;
    right: 20px;
    top: 10px;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
}

.close:hover {
    color: #fff;
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: #ffffff;
}

#loginForm input {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #333;
    border-radius: 10px;
    font-size: 1rem;
    background: #252525;
    color: #fff;
}

.form-footer {
    text-align: center;
    margin-top: 1rem;
    color: #ccc;
}

.form-footer a {
    color: #ffffff;
    text-decoration: none;
}

/* Footer */
.footer {
    background: #000;
    border-top: 2px solid #ffffff;
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #ffffff;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #bbb;
    text-decoration: none;
    transition: 0.3s;
}

.footer-section a:hover {
    color: #ffffff;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);

@keyframes bgFloat {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    50% {
        transform: translate3d(-5%, 5%, 0) scale(1.05);
    }
    100% {
        transform: translate3d(5%, -5%, 0) scale(1.08);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes wobble {
    0%, 100% { transform: translateY(-10px) scale(1.02); }
    25% { transform: translateY(-10px) scale(1.02) rotate(2deg); }
    75% { transform: translateY(-10px) scale(1.02) rotate(-2deg); }
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: scale(0);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: #000;
        border-bottom: 2px solid #ffffff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.5);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .stats {
        flex-direction: column;
    }
}

@media (max-width: 600px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .course-grid,
    .subject-grid,
    .video-grid {
        grid-template-columns: 1fr;
    }
}

/* Side Bar Styles */
.side-bar {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background-color: #000;
    padding: 20px;
    border-radius: 0 10px 10px 0;
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    border-right: 5px solid orange;
    min-width: 150px;
}

.side-bar h3 {
    color: orange;
    margin-bottom: 15px;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid orange;
    padding-bottom: 5px;
}

.side-bar ul {
    list-style: none;
}

.side-bar li {
    margin-bottom: 10px;
}

.side-bar a {
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
    display: block;
    font-weight: 500;
}

.side-bar a:hover {
    color: orange;
    padding-left: 5px;
}