/* ==== Time Slot Grid ==== */
.time-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.time-slot {
    flex: 1 0 22%;
    min-width: 70px;
    max-width: 100px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 500;
    color: #0d6efd;
    background-color: #fff;
    border: 2px solid #0d6efd;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.time-slot:hover {
    background-color: #0d6efd;
    color: #fff;
    transform: scale(1.05);
}

/* ==== Teacher Header ==== */
.teacher-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
}

.teacher-header img.flag {
    width: 50px;
    height: auto;
}

.teacher-header h5 {
    margin: 0;
    font-size: 1.1rem;
}

/* ==== Volume Icon ==== */
.volume-icon {
    font-size: 1.5rem;
    color: #0d6efd;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.volume-icon:hover {
    transform: scale(1.2);
}

/* ==== Audio Element Hidden ==== */
audio {
    display: none;
}

/* ==== Carousel Customizations ==== */
#teacherCarousel {
    position: relative;
    padding-bottom: 4rem; /* space for indicators */
}

.carousel-item {
    min-height: 400px;
    width: 100%;
    transition: opacity 0.5s ease-in-out;
}

/* ==== Carousel Controls ==== */
#teacherCarousel .carousel-control-prev,
#teacherCarousel .carousel-control-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    /* background-color: #0d6efd; */
    background: conic-gradient(from 258.5deg at 48.25% 100%, #247bff 0deg, #b7d9ff 146.32deg, #247bff 360deg);
    border-radius: 50%;
    opacity: 0.9;
    transition: transform 0.2s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

#teacherCarousel .carousel-control-prev:hover,
#teacherCarousel .carousel-control-next:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.5);
}

.carousel-control-prev-icon,
.carousel-control-next-icon {
    cursor: pointer;
}

/* ==== Carousel Indicators ==== */
.carousel-indicators {
    z-index: 3;
}

.carousel-indicators.custom-dots button {
    width: 12px;
    height: 12px;
    margin: 0 5px;
    border: none;
    border-radius: 50%;
    background-color: #aaa;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.carousel-indicators.custom-dots button.active {
    background-color: #007bff;
    opacity: 1;
}

/* ==== Responsive Carousel Controls ==== */
@media (max-width: 768px) {
    #teacherCarousel .carousel-control-prev,
    #teacherCarousel .carousel-control-next {
        width: 36px;
        height: 36px;
    }
}