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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0e27;
    color: #fff;
    overflow-x: hidden;
}

/* Header */
header {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1e 100%);
    padding: 1.5rem 2rem;
    box-shadow: 0 4px 20px rgba(0, 255, 255, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid #00ffff;
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    background: linear-gradient(45deg, #00ffff, #ff00ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: #00ffff;
    text-shadow: 0 0 10px #00ffff;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-bottom: 2px solid #ff00ff;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #ff00ff, #00ffff, #ff00ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.5); }
}

.hero p {
    font-size: 1.2rem;
    color: #00ffff;
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

/* Carousel */
.carousel-container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.carousel-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #ff00ff;
    text-shadow: 0 0 20px rgba(255, 0, 255, 0.5);
}

.carousel {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.3);
    border: 2px solid #00ffff;
}

.carousel-inner {
    display: flex;
    transition: transform 0.5s ease-in-out;
    height: 100%;
}

.carousel-item {
    min-width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.carousel-content {
    text-align: center;
    padding: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.carousel-content img {
    max-width: 350px;
    max-height: 250px;
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 0 20px rgba(0, 255, 255, 0.5));
}

.carousel-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: #00ffff;
}

.carousel-content p {
    font-size: 1.1rem;
    color: #fff;
    margin-bottom: 1rem;
}

.carousel-content .price {
    font-size: 2rem;
    color: #ff00ff;
    font-weight: bold;
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
    margin-bottom: 1rem;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 255, 255, 0.3);
    border: 2px solid #00ffff;
    color: #fff;
    font-size: 2rem;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 10;
}

.carousel-btn:hover {
    background: rgba(0, 255, 255, 0.6);
    box-shadow: 0 0 20px #00ffff;
}

.carousel-btn.prev {
    left: 20px;
}

.carousel-btn.next {
    right: 20px;
}

/* Discount Section */
.discount-section {
    max-width: 1400px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #ff00ff;
    text-shadow: 0 0 20px rgba(255, 0, 255, 0.5);
}

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

.discount-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    border: 2px solid #00ffff;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.discount-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 40px rgba(255, 0, 255, 0.4);
    border-color: #ff00ff;
}

.discount-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: #ff00ff;
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: bold;
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.8);
}

.discount-card img {
    width: 100%;
    max-width: 250px;
    height: 200px;
    object-fit: contain;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 15px rgba(0, 255, 255, 0.3));
}

.discount-card h3 {
    color: #00ffff;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.old-price {
    text-decoration: line-through;
    color: #888;
    margin-right: 1rem;
}

.new-price {
    color: #ff00ff;
    font-size: 1.8rem;
    font-weight: bold;
}

.buy-btn {
    margin-top: 1rem;
    padding: 0.8rem 2rem;
    background: linear-gradient(45deg, #ff00ff, #00ffff);
    border: none;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    border-radius: 25px;
    transition: all 0.3s;
    font-size: 1rem;
}

.buy-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.8);
}

/* Reviews Section */
.reviews-section {
    max-width: 1400px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.review-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 15px;
    padding: 2rem;
    border: 2px solid #ff00ff;
    transition: all 0.3s;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.3);
}

.review-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.reviewer-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(45deg, #00ffff, #ff00ff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin-right: 1rem;
}

.reviewer-info h4 {
    color: #00ffff;
    margin-bottom: 0.3rem;
}

.stars {
    color: #ffd700;
    font-size: 1.2rem;
}

.review-text {
    color: #ccc;
    line-height: 1.6;
    font-style: italic;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1e 100%);
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
    border-top: 2px solid #00ffff;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.footer-info {
    margin-bottom: 2rem;
}

.footer-info h3 {
    color: #ff00ff;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.footer-info p {
    color: #00ffff;
    margin: 0.5rem 0;
}

.footer-bottom {
    border-top: 1px solid rgba(0, 255, 255, 0.3);
    padding-top: 1rem;
    color: #888;
}

.student-info {
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 10px;
    border: 1px solid #00ffff;
}

.student-info p {
    color: #00ffff;
    margin: 0.3rem 0;
}