/* Hero Section with Video Background */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    z-index: 2;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.6s ease forwards 0.2s;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    max-width: 600px;
}

@keyframes fadeIn {
    to { opacity: 1; transform: translateY(0); }
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-align: left;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    font-weight: 400;
    text-align: left;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--cta-bg);
    color: #ffffff;
    border-radius: 8px;
    font-weight: 700;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px var(--card-hover);
}

/* Courses Section with 3D Cards */
.courses {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 5;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

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

.course-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(5px);
    transform-style: preserve-3d;
    perspective: 1000px;
    opacity: 0.8;
    position: relative;
    transform: translateZ(0);
}

.course-card:hover {
    transform: scale(1.05) rotateY(10deg) rotateX(5deg) translateZ(20px);
    box-shadow: 0 0 15px var(--card-hover);
    opacity: 1;
}

.course-card a {
    display: block; /* Make link fill the card */
    color: inherit;
    text-decoration: none;
    height: 100%;
    width: 100%;
}

.course-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.course-card p {
    font-size: 1rem;
    opacity: 0.8;
}

/* Explore More Box */
.explore-more {
    text-align: center;
    margin-top: 3rem;
}

.explore-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--cta-bg);
    color: #ffffff;
    border-radius: 8px;
    font-weight: 700;
    transition: transform 0.3s ease;
}

.explore-button:hover {
    transform: scale(1.05);
}

/* About Section */
.about {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

/* Marquee Section */
.marquee-section {
    overflow: hidden;
    background: rgba(0, 0, 0, 0.5);
    padding: 1rem 0;
    white-space: nowrap;
}

.marquee {
    display: inline-block;
    animation: marquee 20s linear infinite;
    font-size: 1.2rem;
    color: var(--text-color);
    opacity: 0.7;
}

@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.marquee span {
    padding: 0 2rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    background: rgba(0, 0, 0, 0.8);
}