/**
 * 智慧教学管理系统 - 自定义样式
 */

/* 卡片阴影 */
.card-shadow {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

/* 悬浮上移动效 */
.hover-up {
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border-left: 3px solid transparent;
}
.hover-up:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.15);
    border-left-color: var(--accent-color, #2563eb);
}

/* 卡片标题悬浮变色 */
.hover-up:hover .card-title {
    color: var(--accent-color, #2563eb);
    transition: color 0.3s ease;
}

/* 卡片描述文字悬浮增强 */
.hover-up:hover .card-desc {
    color: #374151;
    transition: color 0.3s ease;
}

/* 箭头指示器 - 右上角与图标同行 */
.card-arrow {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-color, #2563eb);
    opacity: 0;
    transform: translateX(8px);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 3.5rem;
}
.hover-up:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
}
.card-arrow i {
    transition: transform 0.3s ease;
}
.hover-up:hover .card-arrow i {
    animation: arrow-bounce 1s ease infinite;
}

@keyframes arrow-bounce {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(5px); }
}

/* 图标悬浮放大 */
.hover-up:hover .card-icon {
    transform: scale(1.1);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-icon {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 下拉选择框 */
.select-box {
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
    padding: 0.5rem 0.75rem;
    outline: none;
    transition: border-color 0.2s;
    background-color: #fff;
}
.select-box:focus {
    border-color: #2563eb;
}