/*
    ==========================================================================
    MONHOC V2 - Thẻ môn học chuẩn thiết kế hiện đại
    Phù hợp 100% ảnh mẫu:
    1. Gradient chéo 2 tông màu (--c1 -> --c2), accent đồng bộ
    2. Banner gọn thấp 110px
    3. Icon trắng 56px ở giữa, chấm bi & sóng mờ
    4. Thân thẻ đè lên banner (margin-top: -18px, bo góc)
    5. Màu nhấn đồng bộ (nút, giá, tín chỉ)
    6. Chip đ/tín nền xám nhạt dễ đọc
    ========================================================================== */

#monHocCardList .card,
.mh-card {
    background: #fff;
    border: none;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(15, 23, 42, .08);
    transition: transform .2s ease, box-shadow .2s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}
#monHocCardList .card:hover,
.mh-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 30px rgba(15, 23, 42, .14);
}

.banner {
    position: relative;
    height: 110px;
    background:
        radial-gradient(circle, rgba(255, 255, 255, .55) 2px, transparent 2.5px) 24px 20px/14px 14px,
        linear-gradient(135deg, var(--c1), var(--c2));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    overflow: hidden;
}

/* Họa tiết đường sóng mờ bên phải */
.banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 110' fill='none'%3E%3Cpath d='M80 0 C110 40, 150 35, 200 65' stroke='white' stroke-width='1.5' opacity='0.20'/%3E%3Cpath d='M60 0 C95 50, 140 45, 200 80' stroke='white' stroke-width='1.5' opacity='0.18'/%3E%3Cpath d='M40 0 C80 60, 130 55, 200 95' stroke='white' stroke-width='1.5' opacity='0.15'/%3E%3Cpath d='M100 0 C125 45, 165 40, 200 70' stroke='white' stroke-width='1.5' opacity='0.22'/%3E%3Cpath d='M120 0 C145 55, 180 50, 200 85' stroke='white' stroke-width='1.5' opacity='0.20'/%3E%3Cpath d='M140 0 C165 65, 190 60, 200 100' stroke='white' stroke-width='1.5' opacity='0.24'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right top;
    background-size: 175px 110px;
    pointer-events: none;
}

/* Họa tiết chấm bi góc trái */
.banner::before {
    content: "";
    position: absolute;
    top: 14px;
    left: 18px;
    width: 44px;
    height: 34px;
    background-image: radial-gradient(circle, rgba(255, 255, 255, .75) 2px, transparent 2.5px);
    background-size: 11px 11px;
    pointer-events: none;
    z-index: 1;
}

.icon {
    font-size: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    color: #fff;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.15));
    transition: transform 0.3s ease;
}
#monHocCardList .card:hover .icon,
.mh-card:hover .icon {
    transform: scale(1.08);
}
.icon svg {
    width: 56px;
    height: 56px;
}

/* Phần nội dung trắng đè lên banner */
.body {
    position: relative;
    margin-top: -18px;
    padding: 18px 20px 20px;
    background: #fff;
    border-radius: 20px 20px 0 0;
    z-index: 3;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.id,
.status {
    position: absolute;
    bottom: 22px;
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 999px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.id {
    left: 16px;
    background: rgba(255, 255, 255, .92);
    color: var(--accent);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}
.status {
    right: 16px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}
.status.open {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #86efac;
}
.status.paused {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.body h3 {
    font-size: 1.16rem;
    font-weight: 800;
    color: #0f172a;
    margin: 6px 0 8px;
    line-height: 1.35;
    letter-spacing: -0.015em;
    min-height: 2.7em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.desc {
    font-size: 14px;
    line-height: 1.55;
    color: #475569;
    min-height: 44px;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 16px 0 18px;
    flex-wrap: wrap;
}
.credit {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.chip {
    font-size: 13px;
    font-weight: 600;
    color: #334155;
    background: #f1f5f9;
    padding: 5px 11px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border: 1px solid #e2e8f0;
}
.price {
    margin-left: auto;
    font-size: 20px;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -0.01em;
}

#monHocCardList .btn,
.mh-card .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-align: center;
    padding: 12px;
    border-radius: 12px;
    background: var(--accent);
    color: #fff !important;
    font-weight: 700;
    font-size: 0.92rem;
    text-decoration: none;
    border: none;
    margin-top: auto;
    box-shadow: 0 8px 18px -6px var(--accent);
    transition: transform .2s ease, filter .2s ease, box-shadow .2s ease;
}
#monHocCardList .btn:hover,
.mh-card .btn:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 12px 24px -6px var(--accent);
    color: #fff !important;
}
#monHocCardList .btn:focus-visible,
.mh-card .btn:focus-visible {
    outline: 3px solid #93c5fd;
    outline-offset: 2px;
}

/* ---- Chế độ xem danh sách (List View) ---- */
@media (min-width: 768px) {
    .view-list #monHocCardList .card,
    .view-list .mh-card {
        flex-direction: row;
        align-items: stretch;
    }
    .view-list .banner {
        flex: 0 0 210px;
        height: auto;
        min-height: 160px;
    }
    .view-list .body {
        margin-top: 0;
        margin-left: -18px;
        border-radius: 20px 0 0 20px;
    }
}
@media (prefers-reduced-motion: reduce) {
    #monHocCardList .card, .mh-card, .btn, .icon { transition: none; }
}

/* ===== Banner đầu trang danh mục (compact) ===== */
.mh2-page-banner {
    position: relative;
    overflow: hidden;
    background: linear-gradient(115deg, #1e40af 0%, #2563eb 45%, #0ea5e9 100%);
    border-radius: 1.25rem;
    padding: 1rem 1.35rem;
    box-shadow: 0 18px 36px -16px rgba(37, 99, 235, 0.55);
}
.mh2-page-banner::before,
.mh2-page-banner::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.10);
    pointer-events: none;
}
.mh2-page-banner::before { width: 220px; height: 220px; right: -60px; top: -90px; }
.mh2-page-banner::after { width: 140px; height: 140px; right: 190px; bottom: -80px; background: rgba(255, 255, 255, 0.07); }
.mh2-banner-icon {
    width: 52px; height: 52px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.16);
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    color: #fff; font-size: 1.45rem;
    box-shadow: 0 8px 18px -8px rgba(0, 0, 0, 0.3);
}
.mh2-banner-title {
    color: #fff; font-weight: 800; font-size: 1.3rem;
    letter-spacing: -0.01em; margin: 0; line-height: 1.25;
    text-shadow: 0 2px 10px rgba(9, 50, 120, 0.25);
}
.mh2-banner-sub {
    color: rgba(255, 255, 255, 0.95);
    font-size: 0.85rem;
    font-weight: 500;
    margin: 0.25rem 0 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}
.mh2-admin-btn {
    background: rgba(255, 255, 255, 0.2) !important;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1.5px solid rgba(255, 255, 255, 0.5) !important;
    color: #fff !important;
    transition: all 0.2s ease;
}
.mh2-admin-btn:hover {
    background: rgba(255, 255, 255, 0.32) !important;
    border-color: #ffffff !important;
    color: #fff !important;
    transform: translateY(-1px);
}

.mh2-badge-count {
    background: rgba(255, 255, 255, 0.95);
    color: #1e3a8a;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 0.42rem 0.95rem;
    border-radius: 999px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

/* ===== Hộp công cụ Tìm kiếm & Bộ lọc hiện đại (2 tầng) ===== */
.mh2-filter-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 1.15rem;
    padding: 1.1rem 1.25rem;
    box-shadow: 0 4px 20px -8px rgba(15, 23, 42, 0.06);
    margin-bottom: 1.25rem;
}

/* Tầng 1: Ô tìm kiếm & Dropdown sắp xếp */
.mh2-search-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.mh2-search-input-wrap {
    flex: 1 1 320px;
    position: relative;
    display: flex;
    align-items: center;
}

.mh2-search-input-wrap .mh2-search-icon {
    position: absolute;
    left: 1rem;
    color: #2563eb;
    font-size: 1rem;
    pointer-events: none;
    z-index: 2;
}

.mh2-search-input-wrap .form-control {
    background: #f8fafc;
    border: 1.5px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 0.62rem 2.5rem 0.62rem 2.6rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: #0f172a;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: none;
}

.mh2-search-input-wrap .form-control:hover {
    background: #ffffff;
    border-color: #cbd5e1;
}

.mh2-search-input-wrap .form-control:focus {
    background: #ffffff;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.mh2-search-input-wrap .form-control::placeholder {
    color: #64748b;
    font-weight: 450;
}

.mh2-search-clear-btn {
    position: absolute;
    right: 0.75rem;
    background: transparent;
    border: none;
    color: #94a3b8;
    padding: 0.25rem;
    cursor: pointer;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s ease;
    z-index: 2;
}
.mh2-search-clear-btn:hover {
    color: #ef4444;
}

/* Dropdown Sắp xếp */
.mh2-sort-control {
    flex: 0 0 auto;
    min-width: 215px;
    position: relative;
    display: flex;
    align-items: center;
}

.mh2-sort-icon {
    position: absolute;
    left: 0.85rem;
    color: #64748b;
    font-size: 0.95rem;
    pointer-events: none;
    z-index: 2;
}

.mh2-sort-select {
    background-color: #f8fafc;
    border: 1.5px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 0.62rem 2rem 0.62rem 2.3rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: #334155;
    cursor: pointer;
    transition: all 0.2s ease;
}

.mh2-sort-select:hover {
    background-color: #ffffff;
    border-color: #cbd5e1;
}

.mh2-sort-select:focus {
    background-color: #ffffff;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* Nút đặt lại */
.mh2-reset-btn {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    color: #475569;
    font-weight: 600;
    font-size: 0.86rem;
    border-radius: 0.75rem;
    padding: 0.62rem 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.mh2-reset-btn:hover {
    background: #fee2e2;
    color: #991b1b;
    border-color: #fecaca;
}

/* Tầng 2: Hệ thống Chip lọc trực quan */
.mh2-chips-container {
    display: flex;
    align-items: center;
    gap: 0.5rem 0.85rem;
    flex-wrap: wrap;
    padding-top: 0.85rem;
    margin-top: 0.85rem;
    border-top: 1px solid #f1f5f9;
}

.mh2-chip-cluster {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.mh2-chip-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: #64748b;
    margin-right: 0.2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.mh2-chip {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    color: #334155;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: all 0.18s cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
}

.mh2-chip:hover {
    background: #e2e8f0;
    color: #0f172a;
    transform: translateY(-1px);
}

.mh2-chip.active {
    background: #2563eb;
    border-color: #2563eb;
    color: #ffffff;
    box-shadow: 0 4px 10px -2px rgba(37, 99, 235, 0.4);
}

.mh2-chip-status-open.active {
    background: #166534;
    border-color: #166534;
    color: #ffffff;
    box-shadow: 0 4px 10px -2px rgba(22, 101, 52, 0.4);
}

.mh2-chip-status-info.active {
    background: #1d4ed8;
    border-color: #1d4ed8;
    color: #ffffff;
    box-shadow: 0 4px 10px -2px rgba(29, 78, 216, 0.4);
}

.mh2-chip-status-warning.active {
    background: #b45309;
    border-color: #b45309;
    color: #ffffff;
    box-shadow: 0 4px 10px -2px rgba(180, 83, 9, 0.4);
}

.mh2-chip-status-paused.active {
    background: #991b1b;
    border-color: #991b1b;
    color: #ffffff;
    box-shadow: 0 4px 10px -2px rgba(153, 27, 27, 0.4);
}

.mh2-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
}
.mh2-dot-open { background: #22c55e; }
.mh2-dot-paused { background: #ef4444; }
.mh2-dot-info { background: #3b82f6; }
.mh2-dot-warning { background: #eab308; }
.mh2-chip.active .mh2-dot { background: #ffffff; }

.mh2-chip-separator {
    width: 1px;
    height: 22px;
    background: #e2e8f0;
    margin: 0 0.3rem;
}

/* Thống kê kết quả tìm kiếm */
.mh2-result-count {
    color: #334155;
    font-size: 0.92rem;
    font-weight: 500;
}
.mh2-result-count strong {
    color: #0f172a;
    font-weight: 700;
}

/* Phân trang đẹp & đồng bộ */
.uneti-pagination-new .page-link {
    border: none;
    color: #475569;
    background: transparent;
    border-radius: 50% !important;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 4px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}
.uneti-pagination-new .page-link:hover {
    background-color: #f1f5f9;
    color: #1d4ed8;
}
.uneti-pagination-new .page-item.active .page-link {
    background-color: #2563eb;
    color: white;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.35);
}
.uneti-pagination-new .page-item.disabled .page-link {
    color: #cbd5e1;
    background: transparent;
}

@media (max-width: 767.98px) {
    .mh2-search-input-wrap { flex: 1 1 100%; }
    .mh2-sort-control { flex: 1 1 100%; width: 100%; }
    .mh2-sort-select { width: 100%; }
    .mh2-reset-btn { width: 100%; justify-content: center; }
    .mh2-chip-separator { display: none; }
    .mh2-chips-container { gap: 0.6rem; }
}