:root {
    --student-accent: #6ee7b7;
}

.student-login {
    border-color: rgba(110, 231, 183, 0.28);
}

.student-login .logo {
    filter: drop-shadow(0 0 22px rgba(110, 231, 183, 0.35));
}

.student-login-hint {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(110, 231, 183, 0.08);
    border: 1px solid rgba(110, 231, 183, 0.18);
    color: var(--text-soft);
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 13px;
    line-height: 1.5;
}

.student-dashboard .sidebar-user-role {
    color: var(--student-accent);
}

.student-hero {
    border-color: rgba(110, 231, 183, 0.26);
}

.student-pill {
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(110, 231, 183, 0.12);
    border: 1px solid rgba(110, 231, 183, 0.24);
    color: var(--student-accent);
    font-weight: 700;
    white-space: nowrap;
}

.module-submenu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 8px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.module-submenu.active {
    border-color: rgba(192, 132, 252, 0.22);
    background: rgba(192, 132, 252, 0.08);
}

.module-submenu-toggle,
.module-submenu-item {
    width: 100%;
    border: 1px solid transparent;
    background: transparent;
    cursor: pointer;
    text-align: left;
}

.module-submenu-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 16px;
    color: var(--text-soft);
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.module-submenu-toggle:hover,
.module-submenu-toggle.active {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

.module-submenu-chevron {
    margin-left: auto;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.module-submenu.is-collapsed .module-submenu-chevron {
    transform: rotate(-90deg);
}

.module-submenu-items {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-left: 14px;
}

.module-submenu.is-collapsed .module-submenu-items {
    display: none;
}

.module-submenu-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px 10px 18px;
    border-radius: 14px;
    color: var(--text-soft);
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.module-submenu-item::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.22);
    flex-shrink: 0;
}

.module-submenu-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--text);
    transform: translateX(1px);
}

.module-submenu-item.active {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(192, 132, 252, 0.26);
    color: var(--text);
}

.module-submenu-item.active::before {
    background: #c084fc;
}

.upload-shell {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.admin-logs-shell {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.admin-logs-hero {
    border-color: rgba(110, 231, 183, 0.22);
}

.admin-logs-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.summary-card {
    background: rgba(12, 26, 47, 0.84);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 22px;
    box-shadow: var(--shadow);
    padding: 18px;
}

.summary-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(110, 231, 183, 0.12);
    color: var(--student-accent);
    margin-bottom: 14px;
}

.summary-card-label {
    color: var(--text-soft);
    font-size: 13px;
}

.summary-card-value {
    margin-top: 8px;
    font-size: 30px;
    font-weight: 900;
}

.admin-filter-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.admin-filter-grid-compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-hint {
    display: block;
    margin-top: 8px;
    color: var(--text-soft);
    font-size: 12px;
    line-height: 1.4;
}

.admin-log-table td {
    vertical-align: top;
}

.admin-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 76px;
    padding: 7px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
}

.admin-status.ok {
    background: rgba(0, 230, 118, 0.18);
    color: var(--success);
}

.admin-status.error {
    background: rgba(255, 82, 82, 0.18);
    color: var(--danger);
}

.log-subcopy {
    color: var(--text-soft);
    font-size: 12px;
    line-height: 1.5;
}

.log-payload {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-soft);
    font-size: 12px;
    white-space: pre-wrap;
    word-break: break-word;
}

.admin-log-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.admin-log-card {
    padding: 16px 18px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.admin-log-card:hover,
.admin-log-card:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(110, 231, 183, 0.28);
    background: rgba(110, 231, 183, 0.08);
    outline: none;
}

.admin-log-card-main {
    min-width: 0;
    flex: 1;
}

.admin-log-card-title {
    font-size: 15px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.5;
}

.admin-log-card-subtitle {
    margin-top: 6px;
    color: var(--text-soft);
    font-size: 12px;
}

.admin-log-card-meta {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
    color: var(--text-soft);
    font-size: 12px;
    white-space: nowrap;
}

.admin-log-card-meta strong {
    color: var(--student-accent);
    font-size: 12px;
}

.admin-log-modal[hidden] {
    display: none !important;
}

.admin-log-modal {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: block !important;
}

.admin-log-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(4, 12, 24, 0.76);
    backdrop-filter: blur(6px);
}

.admin-log-modal-dialog {
    position: relative;
    width: min(720px, calc(100vw - 32px));
    max-height: calc(100vh - 48px);
    margin: 24px auto;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(12, 26, 47, 0.98);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.admin-log-modal-content {
    padding: 22px;
}

.admin-log-modal-content h3 {
    margin-bottom: 18px;
    padding-right: 42px;
    font-size: 22px;
    line-height: 1.4;
}

.admin-log-modal-body {
    max-height: calc(100vh - 170px);
    overflow-y: auto;
    display: grid;
    gap: 14px;
}

.admin-log-modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    cursor: pointer;
}

.admin-log-detail-item {
    display: grid;
    gap: 6px;
}

.admin-log-detail-label {
    color: var(--text-soft);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.admin-log-detail-value {
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
    word-break: break-word;
}

.admin-log-detail-block .log-payload {
    margin-top: 0;
}

body.modal-open {
    overflow: hidden;
}

.upload-hero-card {
    border-color: rgba(110, 231, 183, 0.22);
}

.upload-grid {
    display: grid;
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: 18px;
}

.upload-panel {
    background: rgba(12, 26, 47, 0.84);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 22px;
    box-shadow: var(--shadow);
    padding: 20px;
}

.upload-panel-head {
    margin-bottom: 18px;
}

.upload-panel-head h3 {
    font-size: 20px;
    font-weight: 800;
}

.upload-panel-head p {
    color: var(--text-soft);
    margin-top: 8px;
    line-height: 1.5;
    font-size: 14px;
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.current-folder-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 16px;
    margin-bottom: 16px;
    background: rgba(110, 231, 183, 0.08);
    border: 1px solid rgba(110, 231, 183, 0.2);
    color: var(--text-soft);
}

.current-folder-banner i,
.folder-card-icon {
    color: var(--student-accent);
}

.file-input-card {
    position: relative;
    display: block;
    border: 1px dashed rgba(110, 231, 183, 0.34);
    border-radius: 18px;
    background: rgba(110, 231, 183, 0.06);
    padding: 18px;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.file-input-card:hover {
    transform: translateY(-1px);
    border-color: rgba(110, 231, 183, 0.55);
    background: rgba(110, 231, 183, 0.09);
}

.file-input-card input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-input-copy {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--text);
}

.file-input-copy i {
    color: var(--student-accent);
    font-size: 24px;
}

.file-input-copy strong {
    font-size: 15px;
}

.file-input-copy small {
    color: var(--text-soft);
    line-height: 1.5;
}

.file-list-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.explorer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.breadcrumb-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.breadcrumb-item {
    min-height: 38px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-item.active {
    border-color: rgba(110, 231, 183, 0.28);
    color: var(--student-accent);
}

.folder-create-form {
    margin-bottom: 14px;
    padding: 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.folder-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 14px;
}

.file-card {
    padding: 16px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

.folder-card {
    border-color: rgba(110, 231, 183, 0.16);
    background: rgba(110, 231, 183, 0.05);
}

.file-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.item-inline-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-wrap: wrap;
}

.file-card-title {
    font-size: 15px;
    font-weight: 800;
    line-height: 1.4;
}

.file-title-link {
    color: var(--text);
    text-decoration: none;
}

.file-title-link:hover {
    color: var(--student-accent);
}

.file-card-meta {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.file-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(110, 231, 183, 0.12);
    color: var(--student-accent);
    font-size: 11px;
    font-weight: 700;
}

.file-card-description {
    margin-top: 10px;
    color: var(--text-soft);
    line-height: 1.6;
    font-size: 14px;
}

.file-card-actions {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.file-action-link,
.file-action-delete {
    min-height: 40px;
    padding: 0 14px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
}

.file-action-delete {
    color: var(--danger);
    border-color: rgba(255, 82, 82, 0.24);
    background: rgba(255, 82, 82, 0.08);
}

.db-shell {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.db-pma-layout {
    display: grid;
    grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
    gap: 18px;
}

.db-sidebar-panel,
.db-main-panel,
.db-pma-panel,
.db-builder-table-wrap {
    border-radius: 18px;
}

.db-sidebar-panel {
    padding: 0;
    overflow: hidden;
}

.db-sidebar-head {
    padding: 18px 20px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
}

.db-sidebar-db-label,
.db-main-caption {
    color: var(--text-soft);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.db-sidebar-head strong {
    display: block;
    margin-top: 8px;
    font-size: 15px;
    color: var(--student-accent);
    word-break: break-word;
}

.db-sidebar-panel .form-group,
.db-sidebar-title-row,
.db-sidebar-create-btn {
    margin: 16px 20px 0;
}

.db-sidebar-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.db-sidebar-title-row h3 {
    font-size: 17px;
    font-weight: 800;
}

.db-sidebar-title-row span {
    color: var(--text-soft);
    font-size: 12px;
    font-weight: 700;
}

.db-sidebar-table-wrap {
    margin: 16px 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.db-sidebar-table .data-table th {
    white-space: nowrap;
}

.db-table-open-btn {
    border: 0;
    padding: 0;
    background: transparent;
    color: var(--text);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 700;
}

.db-main-panel {
    padding: 0;
    overflow: hidden;
}

.db-main-header {
    padding: 20px 22px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
}

.db-main-header h2 {
    margin-top: 6px;
    font-size: 28px;
    font-weight: 900;
}

.db-main-header p {
    margin-top: 8px;
    color: var(--text-soft);
    line-height: 1.6;
}

.db-pma-tabs {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
    flex-wrap: wrap;
}

.db-pma-tab {
    min-height: 40px;
    padding: 0 14px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 700;
}

.db-pma-tab.active {
    border-color: rgba(110, 231, 183, 0.28);
    background: rgba(110, 231, 183, 0.1);
    color: var(--student-accent);
}

.db-pma-tab:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

#dbWorkspace {
    padding: 18px;
}

.db-detail-stack {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.db-pma-panel,
.db-builder-table-wrap {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    overflow: hidden;
}

.db-pma-panel {
    padding: 18px;
}

.db-pma-section-title {
    margin-bottom: 14px;
}

.db-pma-section-title h4 {
    font-size: 18px;
    font-weight: 800;
}

.db-pma-section-title p {
    margin-top: 6px;
    color: var(--text-soft);
    font-size: 13px;
    line-height: 1.5;
}

.db-pma-form,
.db-row-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.db-pma-form-row {
    display: grid;
    grid-template-columns: minmax(260px, 420px);
    gap: 14px;
}

.db-pma-inline-form {
    display: grid;
    grid-template-columns: minmax(240px, 1fr) auto auto;
    gap: 12px;
    align-items: end;
}

.db-pma-inline-form-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr)) auto auto;
}

.db-builder-table td input,
.db-builder-table td select,
.db-row-form input,
.db-row-form textarea,
.db-row-form select {
    width: 100%;
    min-height: 42px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    padding: 0 12px;
}

.db-builder-table td input[readonly] {
    opacity: 0.82;
}

.db-auto-check {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-soft);
    font-weight: 700;
}

.db-inline-check {
    min-height: 52px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-soft);
}

.db-inline-check-row {
    margin-top: 24px;
}

.db-list-row.active td {
    background: rgba(110, 231, 183, 0.08);
}

.db-data-table td {
    vertical-align: top;
    max-width: 220px;
    word-break: break-word;
}

.db-data-table .item-inline-actions {
    justify-content: flex-end;
}

.db-field-meta {
    margin-top: 6px;
    color: var(--text-soft);
    font-size: 12px;
}

.db-fixed-label {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 12px;
    color: var(--text-soft);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 12px;
    font-weight: 700;
}

.task-hero-card {
    border-color: rgba(96, 165, 250, 0.22);
}

.task-module-page {
    color: #ffffff;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.task-module-page,
.task-module-page * {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.task-module-page .top-bar-title,
.task-module-page .hero-title,
.task-module-page .upload-panel-head h3,
.task-module-page .task-course-title,
.task-module-page .task-item-title,
.task-module-page .data-table th,
.task-module-page .data-table td,
.task-module-page .form-group label,
.task-module-page .file-input-copy,
.task-module-page .btn-cancel,
.task-module-page .btn-login,
.task-module-page .toolbar-btn {
    font-family: var(--font-main);
}

.task-module-page .hero-title,
.task-module-page .upload-panel-head h3,
.task-module-page .task-course-title,
.task-module-page .task-item-title,
.task-module-page .top-bar-title,
.task-module-page .data-table th,
.task-module-page .data-table td,
.task-module-page .file-input-copy strong,
.task-module-page .btn-cancel,
.task-module-page .btn-login,
.task-module-page .toolbar-btn {
    color: #ffffff;
}

.task-module-page .hero-copy,
.task-module-page .upload-panel-head p,
.task-module-page .task-course-copy,
.task-module-page .task-item-copy,
.task-module-page .task-upload-copy,
.task-module-page .top-bar-role,
.task-module-page .file-input-copy small,
.task-module-page .form-group label {
    color: rgba(255, 255, 255, 0.72);
}

.task-module-page input,
.task-module-page textarea,
.task-module-page select,
.task-module-page button,
.task-module-page label,
.task-module-page p,
.task-module-page span,
.task-module-page div,
.task-module-page th,
.task-module-page td,
.task-module-page h1,
.task-module-page h2,
.task-module-page h3,
.task-module-page h4 {
    color: inherit;
}

.task-shell {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.task-panel {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.task-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.task-summary {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.task-summary-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid rgba(96, 165, 250, 0.2);
    background: rgba(96, 165, 250, 0.08);
    color: #93C5FD;
    font-weight: 700;
    white-space: nowrap;
}

.task-table-wrap {
    overflow-x: auto;
}

.task-table td {
    vertical-align: top;
}

.task-course-block,
.task-item-block,
.task-upload-block {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 180px;
}

.task-course-title,
.task-item-title {
    font-size: 15px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.45;
}

.task-course-copy,
.task-item-copy,
.task-upload-copy {
    color: var(--text-soft);
    font-size: 13px;
    line-height: 1.55;
}

.task-inline-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.task-meta-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-soft);
    font-size: 12px;
    font-weight: 700;
}

.task-status-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 110px;
    padding: 7px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.task-status-chip.pending {
    background: rgba(251, 191, 36, 0.18);
    color: #FCD34D;
}

.task-status-chip.delivered {
    background: rgba(16, 185, 129, 0.18);
    color: #6EE7B7;
}

.task-action-stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-width: 140px;
}

.task-upload-btn {
    justify-content: center;
}

.task-empty {
    text-align: center;
}

.task-upload-dialog {
    width: min(760px, calc(100vw - 32px));
    max-height: calc(100vh - 32px);
}

.task-upload-dialog .admin-log-modal-content {
    max-height: calc(100vh - 32px);
    overflow-y: auto;
}

.task-upload-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.task-file-preview-grid {
    margin-top: 12px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(86px, 1fr));
    gap: 10px;
}

.task-file-preview-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.task-file-link-card {
    text-decoration: none;
    color: inherit;
}

.task-file-link-card:hover .task-file-preview-media {
    border-color: rgba(96, 165, 250, 0.32);
    background: rgba(96, 165, 250, 0.08);
}

.task-file-preview-media {
    height: 88px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.task-file-preview-remove {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
    border: 0;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: rgba(5, 15, 30, 0.88);
    color: #ffffff;
    font-size: 11px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.28);
}

.task-file-preview-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.task-file-preview-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: #bfdbfe;
    text-align: center;
    padding: 10px 8px;
}

.task-file-preview-icon i {
    font-size: 24px;
}

.task-file-preview-ext {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    min-height: 20px;
    padding: 0 6px;
    border-radius: 999px;
    background: rgba(96, 165, 250, 0.16);
    color: #dbeafe;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.task-file-preview-name {
    font-size: 10px;
    line-height: 1.35;
    color: rgba(255, 255, 255, 0.72);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 2px;
}

.task-attachment-grid {
    margin-top: 10px;
    grid-template-columns: repeat(auto-fill, minmax(78px, 1fr));
}

.task-upload-meta {
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.playground-page-shell {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.playground-page-shell-compact {
    padding-top: 0;
}

.playground-page-container {
    min-height: 100vh;
}

.playground-shell {
    min-height: calc(100vh - 118px);
}

.playground-workspace-panel {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px;
    min-height: calc(100vh - 150px);
    border-color: rgba(59, 130, 246, 0.18);
    background:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.08), transparent 26%),
        radial-gradient(circle at top right, rgba(249, 115, 22, 0.08), transparent 24%),
        rgba(7, 15, 28, 0.92);
}

.playground-stack {
    display: grid;
    grid-template-rows: minmax(340px, 1fr) minmax(340px, 1fr);
    gap: 16px;
    min-height: 0;
    flex: 1;
}

.playground-editors-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    min-height: 0;
}

.playground-panel,
.playground-code-card {
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 0;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(4, 10, 20, 0.78);
    box-shadow: 0 22px 46px rgba(2, 8, 20, 0.22);
}

.playground-code-card {
    padding: 16px;
}

.playground-code-card-html {
    border-color: rgba(249, 115, 22, 0.22);
}

.playground-code-card-css {
    border-color: rgba(14, 165, 233, 0.2);
}

.playground-code-card-js {
    border-color: rgba(250, 204, 21, 0.2);
}

.playground-panel-head,
.playground-code-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.playground-panel-caption,
.playground-code-label {
    color: #93c5fd;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.playground-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.playground-project-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.playground-project-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.playground-file-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.playground-run-btn {
    border-color: rgba(59, 130, 246, 0.28);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.22), rgba(14, 165, 233, 0.12));
}

.playground-run-btn .btn-text {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.playground-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.playground-folder-note {
    min-height: 42px;
    padding: 10px 14px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(226, 232, 240, 0.86);
    font-size: 12px;
    line-height: 1.5;
}

.playground-sync-status {
    min-height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-soft);
    font-size: 12px;
    font-weight: 700;
}

.playground-sync-status.success {
    color: #93c5fd;
    border-color: rgba(59, 130, 246, 0.22);
    background: rgba(59, 130, 246, 0.08);
}

.playground-sync-status.info {
    color: #bfdbfe;
    border-color: rgba(96, 165, 250, 0.22);
    background: rgba(96, 165, 250, 0.08);
}

.playground-sync-status.error {
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.26);
    background: rgba(239, 68, 68, 0.08);
}

.playground-code-badge,
.playground-shortcut-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 36px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(226, 232, 240, 0.86);
    font-size: 12px;
    font-weight: 700;
}

.playground-file-select {
    min-width: 148px;
    max-width: 220px;
    min-height: 38px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(9, 17, 29, 0.94);
    color: #f8fafc;
    padding: 0 12px;
    font-size: 12px;
    outline: none;
}

.playground-mini-btn {
    min-height: 38px;
    padding: 0 14px;
}

.playground-file-toolbar .playground-mini-btn {
    width: 38px;
    min-width: 38px;
    padding: 0;
    justify-content: center;
}

.playground-editor-wrap {
    flex: 1;
    min-height: 0;
    display: flex;
    border-radius: 18px;
    border: 1px solid rgba(249, 115, 22, 0.18);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.02)),
        linear-gradient(90deg, rgba(249, 115, 22, 0.08), rgba(255, 255, 255, 0) 24%);
    overflow: hidden;
}

.playground-editor-wrap-neutral {
    border-color: rgba(96, 165, 250, 0.18);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.02)),
        linear-gradient(90deg, rgba(96, 165, 250, 0.08), rgba(255, 255, 255, 0) 24%);
}

.playground-editor-host {
    display: none;
    flex: 1;
    width: 100%;
    min-height: 0;
}

.playground-editor-wrap.monaco-ready .playground-editor-host {
    display: block;
}

.playground-editor-wrap.monaco-ready .playground-fallback-textarea {
    display: none;
    pointer-events: none;
}

.playground-editor-wrap .playground-fallback-textarea {
    width: 100%;
    min-height: 100%;
    border: 0;
    resize: none;
    padding: 18px;
    background: transparent;
    color: #f8fafc;
    font-family: "Consolas", "Courier New", monospace;
    font-size: 13px;
    line-height: 1.7;
    outline: none;
    tab-size: 4;
}

.playground-editor-wrap .playground-fallback-textarea::placeholder {
    color: rgba(226, 232, 240, 0.38);
}

body .monaco-editor .suggest-widget,
body .monaco-editor .parameter-hints-widget,
body .monaco-hover,
body .monaco-editor-hover,
body .monaco-editor .monaco-colorpicker-widget,
body .context-view .monaco-menu-container,
body .context-view .monaco-list,
body .context-view {
    background: #0b1220 !important;
    background-color: #0b1220 !important;
    border: 1px solid rgba(148, 163, 184, 0.28) !important;
    box-shadow: 0 20px 45px rgba(2, 6, 23, 0.55) !important;
}

body .monaco-editor .suggest-widget,
body .monaco-editor .parameter-hints-widget,
body .monaco-hover,
body .monaco-editor-hover,
body .context-view .monaco-menu-container,
body .context-view .monaco-list,
body .context-view {
    color: #e2e8f0 !important;
}

.playground-editor-foot {
    color: var(--text-soft);
    font-size: 12px;
    line-height: 1.6;
}

.playground-lesson-mode .top-bar {
    display: none;
}

.playground-lesson-mode .content-area.playground-page-shell {
    padding: 12px;
}

.playground-lesson-mode .playground-shell,
.playground-lesson-mode .playground-workspace-panel {
    min-height: 100%;
}

.playground-lesson-mode .playground-workspace-panel {
    padding: 14px;
    gap: 12px;
}

.playground-lesson-mode .playground-project-bar,
.playground-lesson-mode #loadStarterBtn,
.playground-lesson-mode #playgroundCreateProjectBtn,
.playground-lesson-mode #playgroundRenameProjectBtn,
.playground-lesson-mode #playgroundDuplicateProjectBtn,
.playground-lesson-mode #playgroundDeleteProjectBtn,
.playground-lesson-mode #playgroundCreateHtmlFileBtn,
.playground-lesson-mode #playgroundRenameHtmlFileBtn,
.playground-lesson-mode #playgroundDeleteHtmlFileBtn,
.playground-lesson-mode #playgroundCreateCssFileBtn,
.playground-lesson-mode #playgroundRenameCssFileBtn,
.playground-lesson-mode #playgroundDeleteCssFileBtn,
.playground-lesson-mode #playgroundCreateJsFileBtn,
.playground-lesson-mode #playgroundRenameJsFileBtn,
.playground-lesson-mode #playgroundDeleteJsFileBtn,
.playground-lesson-mode .playground-code-card-js {
    display: none !important;
}

.playground-lesson-mode .playground-panel-head,
.playground-lesson-mode .playground-code-head,
.playground-lesson-mode .playground-meta-row {
    gap: 10px;
}

.playground-lesson-mode .playground-toolbar,
.playground-lesson-mode .playground-file-toolbar {
    gap: 8px;
}

.playground-lesson-mode .playground-stack {
    grid-template-rows: minmax(320px, 1fr) minmax(260px, 0.9fr);
    gap: 12px;
}

.playground-lesson-mode .playground-editors-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 12px;
}

.playground-lesson-mode .playground-code-card,
.playground-lesson-mode .playground-panel {
    border-radius: 18px;
}

.playground-lesson-mode .playground-code-card {
    padding: 12px;
}

.playground-lesson-mode .playground-file-select {
    min-width: 132px;
}

.playground-lesson-mode .playground-preview-panel {
    padding: 12px;
}

.playground-lesson-mode .playground-preview-frame-wrap {
    border-radius: 16px;
}

.playground-lesson-mode .playground-editor-foot {
    display: none;
}

.playground-html-only-mode .content-area.playground-page-shell {
    padding: 0;
    height: 100vh;
    min-height: 100vh;
}

.playground-html-only-mode,
.playground-html-only-mode .page-container.playground-page-container {
    height: 100vh;
    min-height: 100vh;
    overflow: hidden;
}

.playground-html-only-mode .playground-shell,
.playground-html-only-mode .playground-workspace-panel,
.playground-html-only-mode .playground-stack,
.playground-html-only-mode .playground-editors-grid,
.playground-html-only-mode .playground-code-card-html,
.playground-html-only-mode .playground-editor-wrap,
.playground-html-only-mode .playground-editor-host,
.playground-html-only-mode .playground-fallback-textarea {
    min-height: 100%;
    height: 100%;
}

.playground-html-only-mode .playground-workspace-panel,
.playground-html-only-mode .playground-code-card-html {
    padding: 0;
    gap: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.playground-html-only-mode .playground-panel-head,
.playground-html-only-mode .playground-meta-row,
.playground-html-only-mode .playground-project-bar,
.playground-html-only-mode .playground-code-card-js,
.playground-html-only-mode .playground-preview-panel,
.playground-html-only-mode .playground-editor-foot,
.playground-html-only-mode .playground-code-head {
    display: none !important;
}

.playground-html-only-mode .playground-stack {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.playground-html-only-mode .playground-editors-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    flex: 1;
    height: 100%;
    min-height: 0;
    gap: 12px;
}

.playground-html-only-mode .playground-code-card-html,
.playground-html-only-mode .playground-code-card-css {
    flex: 1;
    min-height: 0;
    position: relative;
    padding-top: 26px;
}

.playground-html-only-mode .playground-code-card-css {
    display: flex;
}

.playground-html-only-mode .playground-code-card-html::before,
.playground-html-only-mode .playground-code-card-css::before {
    position: absolute;
    top: 6px;
    left: 12px;
    z-index: 2;
    color: rgba(191, 219, 254, 0.82);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    pointer-events: none;
}

.playground-html-only-mode .playground-code-card-html::before {
    content: var(--playground-primary-file-label, "index.html");
}

.playground-html-only-mode .playground-code-card-css::before {
    content: var(--playground-secondary-file-label, "styles.css");
}

.playground-html-only-mode .playground-editor-wrap {
    flex: 1;
    border-radius: 18px;
    border: 0;
    background: rgba(4, 10, 20, 0.92);
}

.playground-html-only-mode .playground-editor-wrap.monaco-ready .playground-editor-host {
    height: 100%;
}

.playground-html-only-mode .playground-editor-wrap .playground-fallback-textarea {
    min-height: 100%;
    padding: 18px;
}

@media (max-width: 900px) {
    .playground-html-only-mode .playground-editors-grid {
        grid-template-columns: 1fr;
    }
}

.playground-preview-panel {
    padding: 16px;
    overflow: hidden;
}

.playground-preview-frame-wrap {
    flex: 1;
    min-height: 0;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(6, 13, 24, 0.88);
}

.playground-preview-frame-wrap iframe {
    width: 100%;
    height: 100%;
    border: 0;
    background: #ffffff;
    display: block;
}

.toolbar-btn.disabled,
.toolbar-btn[aria-disabled="true"] {
    pointer-events: none;
    opacity: 0.58;
}

.task-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.task-modal-actions .btn-cancel,
.task-modal-actions .btn-login {
    min-height: 46px;
}

.task-modal-actions .btn-login {
    width: auto;
    min-width: 180px;
    margin-top: 0;
}

@media (max-width: 980px) {
    .upload-grid,
    .db-pma-layout,
    .db-pma-form-row,
    .db-pma-inline-form,
    .db-pma-inline-form-columns {
        grid-template-columns: 1fr;
    }

    .admin-logs-summary,
    .admin-filter-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .task-toolbar {
        align-items: stretch;
    }

    .task-summary {
        width: 100%;
    }

    .task-toolbar .toolbar-btn {
        width: 100%;
        justify-content: center;
    }

    .playground-editors-grid {
        grid-template-columns: 1fr;
    }

    .playground-stack {
        grid-template-rows: minmax(620px, auto) minmax(320px, 1fr);
        min-height: 0;
    }

    .playground-lesson-mode .playground-editors-grid {
        grid-template-columns: 1fr;
    }

    .playground-lesson-mode .playground-stack {
        grid-template-rows: minmax(480px, auto) minmax(260px, 1fr);
    }
}

@media (max-width: 780px) {
    .student-pill {
        display: none;
    }

    .item-inline-actions {
        width: 100%;
        margin-left: 0;
        margin-top: 8px;
    }

    .admin-logs-summary,
    .admin-filter-grid {
        grid-template-columns: 1fr;
    }

    .admin-log-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-log-card-meta {
        align-items: flex-start;
        white-space: normal;
    }

    .admin-log-modal-dialog {
        width: calc(100vw - 20px);
        margin: 10px auto;
    }

    .admin-log-modal-content {
        padding: 18px;
    }

    .db-builder-table th,
    .db-builder-table td,
    .db-sidebar-table th,
    .db-sidebar-table td {
        white-space: nowrap;
    }

    .db-data-table .item-inline-actions {
        justify-content: flex-start;
    }

    .playground-panel-head,
    .playground-code-head,
    .playground-meta-row,
    .playground-toolbar,
    .playground-file-toolbar {
        align-items: stretch;
    }

    .playground-toolbar,
    .playground-file-toolbar {
        width: 100%;
    }

    .playground-toolbar .toolbar-btn,
    .playground-toolbar .playground-run-btn {
        width: 100%;
        justify-content: center;
    }

    .playground-file-select,
    .playground-file-toolbar .playground-mini-btn {
        width: 100%;
        max-width: none;
    }

    .playground-stack {
        grid-template-rows: minmax(760px, auto) minmax(280px, 1fr);
    }

    .playground-workspace-panel {
        min-height: calc(100vh - 120px);
        padding: 14px;
    }
}