/* css/components/cards.css - PHIÊN BẢN HOÀN CHỈNH */

/* --- Cấu trúc thẻ cơ bản --- */
.card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius-soft);
    box-shadow: var(--shadow-subtle);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-medium);
}

/* --- Hình ảnh của thẻ lớp học --- */
.class-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    /* Giữ tỷ lệ 16:9 */
    object-fit: cover;
    /* Đảm bảo ảnh vừa vặn, không bị méo */
    margin: 0;
    border-bottom: 1px solid var(--color-border);
}

/* --- Nội dung bên trong thẻ --- */
.card-content {
    padding: 1rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: var(--color-text-primary);
}

.card p.description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    flex-grow: 0;
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* --- Chi tiết (Học phí, Sĩ số) --- */
.class-card-details {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
    font-size: 0.9rem;
}

.class-card-details li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.class-card-details i {
    margin-right: 0.75rem;
    color: var(--color-text-secondary);
}

.class-card-details strong {
    font-weight: 600;
    margin-right: auto;
    /* Đẩy span chứa giá trị sang phải */
}

/* --- Thanh tiến độ sĩ số --- */
.class-card-progress {
    background-color: var(--color-surface-soft);
    border-radius: 999px;
    height: 8px;
    overflow: hidden;
    margin: 0 0 1rem 0;
}

.class-card-progress .progress-bar {
    background-color: var(--color-primary);
    height: 100%;
    border-radius: 999px;
    transition: width 0.5s ease;
}

/* --- Phần cuối cùng của thẻ (Trạng thái, Xem chi tiết) --- */
.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
    margin-top: auto;
    /* Luôn đẩy xuống cuối thẻ */
}

.card-meta .view-details {
    font-weight: 600;
    color: var(--color-primary);
}


.test-pdf-list-section {
    width: 100%;
}

.test-pdf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.test-pdf-item {
    background-color: var(--color-surface);
    border-radius: var(--border-radius-soft);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    text-align: center;
    transition: var(--transition-smooth);
}

.test-pdf-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.pdf-icon-container {
    font-size: 2.5rem;
    color: var(--color-danger);
    /* Màu đỏ cho PDF */
    margin-bottom: 1rem;
}

.test-pdf-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 0.5rem 0;
}

.test-pdf-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.test-pdf-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: auto;
    /* Đẩy nút xuống dưới cùng */
}

/* Tái sử dụng style nút từ misc.css */
.test-pdf-actions .cta-button {
    width: 100%;
    margin: 0;
}

.download-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.login-required-notice {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    visibility: hidden;
    /* Sẽ được JS điều khiển */
}

/* Hiện notice khi nút tải bị vô hiệu hóa */
.protected-download.is-disabled+.download-wrapper .login-required-notice {
    visibility: visible;
}

/* --- Test List Grid --- */
.test-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.test-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius-soft);
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.test-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.test-card-header {
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background-color: var(--color-surface-soft);
}

.test-card-icon {
    font-size: 1.2rem;
    color: var(--color-primary);
}

.test-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    flex-grow: 1;
}

.test-card-body {
    padding: 1rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.test-card-date,
.test-card-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.test-card-date i,
.test-card-desc i {
    color: var(--color-primary-light);
}

.test-card-status {
    display: inline-block;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.test-card-status.status-upcoming {
    background-color: #fff3cd;
    color: #856404;
}

.test-card-status.status-in-progress {
    background-color: #d4edda;
    color: #155724;
}

.test-card-status.status-ended {
    background-color: #f8d7da;
    color: #721c24;
}

.test-card-footer {
    padding: 1rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: flex-end;
}

.test-card-footer .btn-start-test {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--border-radius-hard);
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s ease;
}

.test-card-footer .btn-start-test:hover {
    background-color: var(--color-primary-dark);
}

.test-card-footer .btn-start-test.disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}