/* Courses Page Styles */

/* Animations */
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse-glow {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

@keyframes video-button-pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
}

.animate-fade-in {
    animation: fade-in 0.6s ease-out forwards;
}

.animate-slide-up {
    animation: slide-up 0.6s ease-out forwards;
}

.animate-pulse-glow {
    animation: pulse-glow 4s ease-in-out infinite;
}

.animate-video-button {
    animation: video-button-pulse 1.5s ease-in-out infinite;
}

/* Delay animations */
.animate-slide-up:nth-child(1) {
    animation-delay: 0.1s;
}

.animate-slide-up:nth-child(2) {
    animation-delay: 0.2s;
}

/* Video Modal Styles */
.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(4px);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.video-modal.active {
    display: flex;
}

.video-modal-content {
    background: black;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    max-width: 80rem;
    width: 100%;
}

.video-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: 8px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s;
}

.video-modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.video-modal-iframe {
    width: 100%;
    aspect-ratio: 16 / 9;
    border: none;
}