.admin-sessions-page .navbar-bg {
    background-color: #000080;
}

.admin-sessions-page .main-navbar {
    min-height: 70px;
}

.admin-sessions-page .main-navbar .form-inline {
    width: 100%;
}

.admin-navbar-search {
    position: relative;
    width: min(420px, 100%);
}

.admin-navbar-search .form-control {
    height: 44px;
    border: 0;
    border-radius: 3px;
    background: #fff;
    color: #3a4460;
    font-size: 22px;
    font-weight: 500;
    padding: 10px 44px 10px 18px;
    box-shadow: 0 6px 12px rgba(6, 10, 82, 0.14);
}

.admin-navbar-search .form-control::placeholder {
    color: #818a9b;
}

.admin-navbar-search i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #101738;
    font-size: 16px;
}

.admin-sessions-page .section-header h1 {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #31395f;
    font-size: 42px;
    font-weight: 700;
    letter-spacing: -0.4px;
}

.admin-sessions-page .section-header h1 span {
    color: #31395f;
    font-weight: 700;
}

.admin-sessions-page .section-header-breadcrumb .breadcrumb-item {
    font-size: 20px;
}

.admin-sessions-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
}

.admin-create-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    border: 0;
    border-radius: 999px;
    background: #000080;
    color: #fff;
    padding: 10px 20px;
    font-size: 20px;
    font-weight: 700;
    box-shadow: 0 8px 16px rgba(0, 0, 128, 0.25);
}

.admin-create-btn:hover,
.admin-create-btn:focus {
    color: #fff;
    background: #00006b;
}

.admin-create-btn::after {
    margin-left: 4px;
}

.admin-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    border: 0;
    border-radius: 999px;
    background: #57df73;
    color: #fff;
    padding: 10px 20px;
    font-size: 20px;
    font-weight: 700;
    box-shadow: 0 8px 16px rgba(27, 155, 62, 0.2);
}

.admin-filter-btn:hover,
.admin-filter-btn:focus {
    color: #fff;
    background: #3dcd5a;
}

.admin-session-filters {
    border: 1px solid #dfe5ee;
    border-radius: 12px;
    box-shadow: 0 10px 22px rgba(25, 35, 62, 0.06);
    margin-bottom: 20px;
}

.admin-session-filters .card-body {
    padding: 16px 18px 6px;
}

.admin-session-filters label {
    color: #2f3557;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 6px;
}

.admin-session-filters .form-control {
    min-height: 42px;
    border-color: #d3dbe8;
    color: #3a4460;
}

.admin-session-filters .btn {
    min-height: 42px;
    font-size: 14px;
    font-weight: 700;
}

.admin-course-grid {
    margin-bottom: 8px;
}

.admin-course-col {
    margin-bottom: 26px;
}

.admin-course-card {
    background: #fff;
    border: 1px solid #dfe5ee;
    box-shadow: 0 12px 26px rgba(20, 35, 62, 0.05);
    height: 100%;
}

.admin-course-image {
    width: 100%;
    height: 290px;
    object-fit: cover;
    display: block;
}

.admin-course-body {
    padding: 18px 22px 20px;
}

.admin-course-meta {
    margin: 0 0 10px;
    color: #434a67;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.admin-course-meta span {
    padding: 0 7px;
}

.admin-course-title {
    margin: 0 0 16px;
    color: #000080;
    font-size: 34px;
    line-height: 1.2;
    font-weight: 700;
}

.admin-course-title a {
    color: inherit;
    text-decoration: none;
}

.admin-course-title a:hover {
    color: #0713b8;
}

.admin-course-author {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.admin-course-author img {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 8px 14px rgba(14, 24, 46, 0.15);
    object-fit: cover;
}

.admin-course-author-name {
    color: #000080;
    font-size: 33px;
    font-weight: 700;
    line-height: 1.15;
}

.admin-course-author-role {
    margin-top: 2px;
    color: #3e4561;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
}

.admin-course-actions-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 10px;
}

.admin-course-info-btn,
.admin-course-export-btn,
.admin-course-ops-btn {
    width: 100%;
    min-height: 46px;
    border: 0;
    border-radius: 999px;
    font-size: 24px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.admin-course-info-btn {
    background: #000080;
    color: #fff;
}

.admin-course-info-btn:hover,
.admin-course-info-btn:focus {
    color: #fff;
    background: #00006d;
}

.admin-course-export-btn {
    background: #111b2a;
    color: #fff;
    box-shadow: 0 9px 16px rgba(17, 27, 42, 0.2);
}

.admin-course-export-btn:hover,
.admin-course-export-btn:focus {
    color: #fff;
    background: #0a111d;
}

.admin-course-export-btn::after,
.admin-course-ops-btn::after {
    margin-left: 2px;
}

.admin-course-ops-wrap .dropdown-menu,
.admin-course-export-wrap .dropdown-menu {
    min-width: 210px;
    border-radius: 10px;
    border-color: #dbe2ef;
    box-shadow: 0 16px 30px rgba(18, 31, 57, 0.12);
}

.admin-course-ops-wrap .dropdown-item,
.admin-course-export-wrap .dropdown-item {
    color: #34425f;
    font-size: 14px;
    font-weight: 600;
    padding: 9px 14px;
}

.admin-course-ops-wrap .dropdown-item:hover,
.admin-course-export-wrap .dropdown-item:hover {
    background: #f0f4fb;
    color: #19284d;
}

.admin-course-ops-btn {
    background: #57df73;
    color: #fff;
    box-shadow: 0 9px 16px rgba(37, 158, 73, 0.2);
}

.admin-course-ops-btn:hover,
.admin-course-ops-btn:focus {
    color: #fff;
    background: #3dcd5a;
}

.admin-empty-state {
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 8px;
    min-height: 200px;
    border: 1px dashed #cfd8e6;
    border-radius: 12px;
    color: #5a6784;
}

.admin-empty-state.is-visible {
    display: flex;
}

.admin-empty-state i {
    font-size: 30px;
}

.admin-session-feedback {
    margin-top: 4px;
    min-height: 22px;
    color: #57607b;
    font-size: 13px;
    font-weight: 600;
}

.admin-session-feedback.is-success {
    color: #17885f;
}

.admin-session-feedback.is-info {
    color: #2d57af;
}

.admin-info-modal .modal-content {
    border-radius: 12px;
    border: 1px solid #dbe2ef;
}

.admin-info-modal .modal-header {
    border-bottom-color: #edf1f7;
}

.admin-info-modal .modal-title {
    color: #2a3557;
    font-weight: 700;
}

.admin-info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.admin-info-item {
    border: 1px solid #ecf1f8;
    border-radius: 8px;
    background: #f9fbff;
    padding: 10px 12px;
}

.admin-info-item span {
    display: block;
    color: #7a8499;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: 0.4px;
}

.admin-info-item strong {
    color: #2b3958;
    font-size: 14px;
    font-weight: 700;
}

@media (max-width: 1400px) {
    .admin-sessions-page .section-header h1 {
        font-size: 36px;
    }

    .admin-course-title {
        font-size: 30px;
    }

    .admin-course-author-name {
        font-size: 30px;
    }

    .admin-course-author-role {
        font-size: 16px;
    }

    .admin-course-info-btn,
    .admin-course-export-btn,
    .admin-course-ops-btn {
        font-size: 20px;
    }
}

@media (max-width: 1200px) {
    .admin-navbar-search {
        max-width: 350px;
    }
}

@media (max-width: 1024px) {
    .admin-sessions-page .section-header-breadcrumb .breadcrumb-item {
        font-size: 16px;
    }

    .admin-navbar-search .form-control {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .admin-sessions-toolbar {
        flex-wrap: wrap;
    }

    .admin-create-btn,
    .admin-filter-btn {
        font-size: 16px;
        min-height: 42px;
    }

    .admin-sessions-page .section-header h1 {
        font-size: 30px;
    }

    .admin-course-image {
        height: 220px;
    }

    .admin-course-title {
        font-size: 26px;
    }

    .admin-course-author-name {
        font-size: 26px;
    }

    .admin-course-actions-row {
        grid-template-columns: 1fr;
    }

    .admin-info-grid {
        grid-template-columns: 1fr;
    }
}