.card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    padding: 24px;
    margin-bottom: 40px;
}

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    background: var(--card-gradient);
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    padding: 16px;
    max-width: 350px;
    width: 100%;
    min-height: 300px;
    transition: transform 0.25s ease, box-shadow 0.25s ease,
        background-color 0.25s ease;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-hover-shadow);
}

.card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
  transition: transform 0.5s ease, opacity 0.5s ease;
}

.card:hover::after {
  transform: scaleX(1);
  opacity: 1;
}

.card__link {
    position: absolute;
    inset: 0;
}

.card__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.card__icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 10px;
    background-color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.card__title {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-color);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card__body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card__author {
    width: max-content;
    margin-bottom: 8px;
    font-size: 0.85rem;
    color: var(--subtext-color);
    text-decoration: none;
    z-index: 2;
}

.author__official {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin-left: 2px;
    font-size: 12px;
    color: var(--gray-color);
    transition: color 0.2s ease;
    cursor: default;
}
.author__official:hover {
    color: var(--primary-color);
}
.author__official-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--lucky-point);
    color: var(--white-color);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    margin-bottom: 4px;
    z-index: 5;
}
.author__official:hover .author__official-tooltip {
    opacity: 1;
}

.card__description {
    font-size: 0.95rem;
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: calc(1.5em * 3);
}

.card__info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    margin-bottom: 12px;
}

.card__rating {
    display: flex;
    align-items: center;
    font-size: 1rem;
    color: var(--orange-color);
}
.card__rating i {
    margin-right: 2px;
}

.no-rating {
    font-size: 0.9rem;
    color: var(--gray-color);
    font-style: italic;
}

.rating__value-low,
.rating__value-medium,
.rating__value-hight,
.rating__value-veryLow {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 1rem;
    line-height: 1;
    margin-left: 0.3rem;
    font-weight: 700;
}
.rating__value-veryLow {
    color: var(--white-color);
    background: var(--red-color);
}
.rating__value-low {
    color: var(--red-color);
    border: 1px solid var(--red-color);
}
.rating__value-medium {
    border: 1px solid var(--orange-color);
}
.rating__value-hight {
    color: var(--white-color);
    background: var(--orange-color);
}

.card__students {
    display: flex;
    align-items: center;
    font-size: 1rem;
    color: var(--text-color);
}
.card__students i {
    margin-right: 4px;
}
.card__students-count {
    font-weight: 700;
}

.card__learn-more {
    margin-top: auto;
    align-self: flex-start;
    padding: 10px 18px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
    transition: background-color 0.25s ease;
    z-index: 1;
}
.card__learn-more:hover {
    background-color: var(--primary-color-hover);
}

.card__menu {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    align-items: center;
    width: fit-content;
    z-index: 1;
}

@media (max-width: 768px) {
    .card {
        max-width: 300px;
        padding: 16px;
    }
    .card__title {
        font-size: 1rem;
    }
    .card__description {
        font-size: 0.9rem;
    }
    .card__learn-more {
        font-size: 0.9rem;
        padding: 10px 16px;
    }
}