/* Course Grid & Cards */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
    gap: 28px;
    margin-top: 30px;
}

.course-card {
    background: #ffffff;
    border: 1.5px solid #CBD5E1;
    border-radius: 16px;
    padding: 32px 24px 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
    min-height: 380px;
}

/* Top colored border indicator for different categories */
.course-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: transparent;
    transition: all 0.3s ease;
}

.course-card[data-cat="foreign-lang"]::before {
    background: linear-gradient(90deg, #3B82F6, #1D4ED8);
}

.course-card[data-cat="internship"]::before {
    background: linear-gradient(90deg, #10B981, #047857);
}

.course-card[data-cat="competition"]::before {
    background: linear-gradient(90deg, #F97316, #C2410C);
}

.course-card[data-cat="passport"]::before {
    background: linear-gradient(90deg, #EC4899, #BE185D);
}

.course-card[data-cat="volunteer"]::before {
    background: linear-gradient(90deg, #8B5CF6, #6D28D9);
}

.course-card[data-cat="cert"]::before {
    background: linear-gradient(90deg, #F59E0B, #B45309);
}

.course-card[data-cat="service"]::before {
    background: linear-gradient(90deg, #FBBF24, #D97706);
}

/* Categorized backgrounds and borders for cards */
.course-card[data-cat="foreign-lang"] {
    background-color: #F8FAFC;
    border-color: #E2E8F0;
}

.course-card[data-cat="internship"] {
    background-color: #F0FDF4;
    border-color: #DCFCE7;
}

.course-card[data-cat="competition"] {
    background-color: #FFF7ED;
    border-color: #FFEDD5;
}

.course-card[data-cat="passport"] {
    background-color: #FDF2F8;
    border-color: #FCE7F3;
}

.course-card[data-cat="volunteer"] {
    background-color: #F5F3FF;
    border-color: #EDE9FE;
}

.course-card[data-cat="cert"] {
    background-color: #FFFBEB;
    border-color: #FEF3C7;
}

.course-card[data-cat="service"] {
    background-color: #FFFDF0;
    border-color: #FEF3C7;
}

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 35px rgba(46, 31, 71, 0.08);
    border-color: #8B2C2C;
}

.course-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    gap: 8px;
    flex-wrap: wrap;
}

.dept-tag {
    font-size: 0.78rem;
    font-weight: 700;
    color: #6B7280;
    background-color: #F3F4F6;
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid #E5E7EB;
}

.type-tag {
    font-size: 0.78rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid transparent;
}

/* Color schemes for types */
.type-foreign-lang {
    background-color: #EFF6FF;
    color: #1D4ED8;
    border-color: #DBEAFE;
}

.type-internship {
    background-color: #ECFDF5;
    color: #047857;
    border-color: #D1FAE5;
}

.type-competition {
    background-color: #FFF7ED;
    color: #C2410C;
    border-color: #FFEDD5;
}

.type-passport {
    background-color: #FDF2F8;
    color: #BE185D;
    border-color: #FCE7F3;
}

.type-volunteer {
    background-color: #F5F3FF;
    color: #6D28D9;
    border-color: #EDE9FE;
}

.type-cert {
    background-color: #FFFBEB;
    color: #B45309;
    border-color: #FEF3C7;
}

.type-service {
    background-color: #FEF3C7;
    color: #D97706;
    border-color: #FDE68A;
}

.course-card-name {
    font-size: 1.12rem;
    font-weight: 800;
    color: #2E1F47;
    font-family: 'Noto Serif TC', serif;
    margin-bottom: 20px;
    line-height: 1.45;
    min-height: 48px;
}

.course-card-details {
    border-top: 1px dashed #E5E7EB;
    padding-top: 18px;
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 0.92rem;
    color: #4B5563;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.detail-label {
    color: #9CA3AF;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.detail-value {
    font-weight: 700;
    color: #1F2937;
}

.credit-badge {
    background-color: #FEF2F2;
    color: #EF4444;
    border: 1px solid #FEE2E2;
    font-weight: 800;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.8rem;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.04);
}

.status-badge-new {
    background-color: #D1FAE5;
    color: #065F46;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
}

.status-badge-revised {
    background-color: #FEF3C7;
    color: #92400E;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
}

.deduct-alert {
    margin-top: 12px;
    background: linear-gradient(135deg, #FFFDF5 0%, #FFFBEB 100%);
    border: 1px solid #FDE68A;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    color: #B45309;
    line-height: 1.5;
    box-shadow: 0 2px 6px rgba(251, 191, 36, 0.03);
}

/* Search bar */
.search-container {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-input {
    flex-grow: 1;
    padding: 12px 20px;
    border: 1px solid #D1D5DB;
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: #8B2C2C;
    box-shadow: 0 0 0 3px rgba(139, 44, 44, 0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .course-grid {
        grid-template-columns: 1fr;
    }
}