:root {

    --primary: #ff5757;

    --primary-dark: #d83d3d;

    --secondary: #6aab44;

    --secondary-dark: #4c8b2a;

    --accent: #3d7be0;



    --background: #edf3eb;

    --surface: rgba(255, 255, 255, 0.82);

    --surface-solid: #ffffff;

    --surface-muted: rgba(239, 245, 237, 0.92);

    --foreground: #202820;

    --muted: #647064;

    --border: rgba(45, 72, 45, 0.16);

    --shadow: 0 16px 42px rgba(33, 60, 35, 0.14);



    --radius: 16px;

    --radius-small: 10px;

    --header-height: 68px;

    --max-width: 1240px;



    font-family: "Open Sans", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

    color: var(--foreground);

    background: var(--background);

}



* {

    box-sizing: border-box;

}



html {

    min-height: 100%;

    background: var(--background);

}



body {

    min-width: 320px;

    min-height: 100vh;

    margin: 0;

    overflow-x: hidden;

    background: transparent;

}



button,

input,

textarea,

select {

    font: inherit;

}



button {

    cursor: pointer;

}



button:disabled {

    cursor: not-allowed;

    opacity: 0.55;

}



button:focus-visible,

a:focus-visible,

input:focus-visible,

textarea:focus-visible,

select:focus-visible {

    outline: 3px solid rgba(61, 123, 224, 0.4);

    outline-offset: 2px;

}



[hidden] {

    display: none !important;

}



.app-background {

    position: fixed;

    z-index: -1;

    inset: 0;

    overflow: hidden;

    background:

        radial-gradient(circle at 0% 0%, rgba(144, 210, 109, 0.38), transparent 37%),

        radial-gradient(circle at 100% 12%, rgba(255, 87, 87, 0.18), transparent 28%),

        linear-gradient(145deg, #f5f9f3 0%, #e8f0e5 52%, #edf5ea 100%);

}



.app-background::before,

.app-background::after {

    position: absolute;

    width: 38vw;

    height: 38vw;

    min-width: 360px;

    min-height: 360px;

    border-radius: 50%;

    content: "";

    filter: blur(28px);

    opacity: 0.27;

}



.app-background::before {

    top: 35%;

    left: -15%;

    background: #91d26d;

}



.app-background::after {

    top: 22%;

    right: -14%;

    background: #ff8f8f;

}



/* Header */



.app-header {

    position: sticky;

    z-index: 20;

    top: 0;

    display: flex;

    align-items: center;

    min-height: var(--header-height);

    padding: 10px clamp(14px, 3vw, 38px);

    border-bottom: 1px solid rgba(255, 255, 255, 0.55);

    background: rgba(255, 255, 255, 0.72);

    box-shadow: 0 3px 18px rgba(39, 61, 41, 0.08);

    backdrop-filter: blur(18px);

}



.brand {

    display: flex;

    align-items: center;

    max-width: 155px;

}



.brand-logo {

    display: block;

    width: 100%;

    max-height: 44px;

    object-fit: contain;

}



.header-spacer {

    flex: 1;

}



.header-user {

    display: flex;

    min-width: 0;

    margin-right: 10px;

    flex-direction: column;

    align-items: flex-end;

    line-height: 1.2;

}



.header-user-name {

    max-width: 260px;

    overflow: hidden;

    font-size: 0.9rem;

    font-weight: 750;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.header-user-email {

    max-width: 260px;

    overflow: hidden;

    color: var(--muted);

    font-size: 0.76rem;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.header-menu-wrap {

    position: relative;

}



.header-menu-button {

    width: 42px;

    height: 42px;

    color: black;

    border-color: var(--secondary-dark);

    background: var(--secondary);

    font-size: 1.25rem;

}



.header-menu {

    position: absolute;

    z-index: 30;

    top: calc(100% + 9px);

    right: 0;

    width: min(310px, calc(100vw - 28px));

    padding: 8px;

    border: 1px solid var(--border);

    border-radius: var(--radius-small);

    background: rgba(255, 255, 255, 0.96);

    box-shadow: var(--shadow);

    backdrop-filter: blur(18px);

}



.menu-section-label {

    display: block;

    padding: 10px 12px 5px;

    color: var(--muted);

    font-size: 0.72rem;

    font-weight: 750;

    letter-spacing: 0.08em;

    text-transform: uppercase;

}



.menu-item {

    display: block;

    width: 100%;

    padding: 10px 12px;

    color: var(--foreground);

    border: 0;

    border-radius: 8px;

    background: transparent;

    text-align: left;

}



.menu-item:hover {

    background: rgba(106, 171, 68, 0.12);

}



.menu-item.danger:hover {

    background: rgba(255, 87, 87, 0.13);

    color: #9c2222;

}



/* Main layout */



.app-main {

    width: min(100% - 28px, var(--max-width));

    min-height: calc(100vh - var(--header-height));

    margin: 0 auto;

    padding: clamp(20px, 4vw, 42px) 0 54px;

}



.page-shell {

    display: grid;

    gap: 20px;

}



.page-header {

    display: flex;

    gap: 16px;

    align-items: flex-start;

    justify-content: space-between;

}



.page-title-group {

    min-width: 0;

}



.page-title {

    margin: 0;

    font-size: clamp(1.55rem, 3vw, 2.2rem);

    line-height: 1.15;

}



.page-subtitle {

    margin: 7px 0 0;

    color: var(--muted);

}



.page-actions,

.inline-actions,

.dialog-actions {

    display: flex;

    gap: 8px;

    flex-wrap: wrap;

}



.glass-card {

    padding: clamp(17px, 3vw, 26px);

    border: 1px solid rgba(255, 255, 255, 0.82);

    border-radius: var(--radius);

    background: var(--surface);

    box-shadow: var(--shadow);

    backdrop-filter: blur(18px);

}



.card-title {

    margin: 0;

    font-size: 1.12rem;

}



.card-description {

    margin: 7px 0 0;

    color: var(--muted);

    line-height: 1.55;

}



.grid {

    display: grid;

    gap: 16px;

}



.grid.two-columns {

    grid-template-columns: repeat(2, minmax(0, 1fr));

}



.grid.three-columns {

    grid-template-columns: repeat(3, minmax(0, 1fr));

}



/* Buttons */



.button {

    display: inline-flex;

    min-height: 40px;

    padding: 9px 14px;

    align-items: center;

    justify-content: center;

    border: 1px solid transparent;

    border-radius: 9px;

    background: var(--surface-solid);

    color: var(--foreground);

    font-weight: 700;

    line-height: 1.2;

    text-decoration: none;

    transition: transform 0.15s ease, filter 0.15s ease, background-color 0.15s ease;

}



.button:hover:not(:disabled) {

    filter: brightness(0.98);

    transform: translateY(-1px);

}



.button.primary {

    border-color: var(--secondary-dark);

    background: var(--secondary);

    color: white;

}



.button.primary:hover:not(:disabled) {

    background: var(--secondary-dark);

}



.button.danger {

    border-color: #c84242;

    background: var(--primary);

    color: white;

}



.button.secondary {

    border-color: var(--border);

    background: rgba(255, 255, 255, 0.76);

}



.button.blue {

    border-color: #2965be;

    background: var(--accent);

    color: white;

}



.button.small {

    min-height: 33px;

    padding: 6px 10px;

    font-size: 0.82rem;

}



.icon-button {

    display: inline-grid;

    place-items: center;

    border: 1px solid var(--border);

    border-radius: 9px;

    background: rgba(255, 255, 255, 0.72);

}



/* Forms */



.form-grid {

    display: grid;

    gap: 15px;

}



.form-grid.two-columns {

    grid-template-columns: repeat(2, minmax(0, 1fr));

}



.field {

    display: grid;

    gap: 6px;

}



.field.full-width {

    grid-column: 1 / -1;

}



.field label,

.field-label {

    color: #354235;

    font-size: 0.88rem;

    font-weight: 750;

}



.field small {

    color: var(--muted);

    font-size: 0.78rem;

    line-height: 1.4;

}



.field input,

.field select,

.field textarea {

    width: 100%;

    padding: 10px 11px;

    border: 1px solid var(--border);

    border-radius: 8px;

    background: rgba(255, 255, 255, 0.86);

    color: var(--foreground);

}



.field textarea {

    min-height: 150px;

    resize: vertical;

}



.field input:focus,

.field select:focus,

.field textarea:focus {

    border-color: var(--secondary);

    box-shadow: 0 0 0 3px rgba(106, 171, 68, 0.16);

    outline: 0;

}



.checkbox-field {

    display: flex;

    gap: 9px;

    align-items: center;

    color: var(--foreground);

    cursor: pointer;

}



.checkbox-field input {

    width: 18px;

    height: 18px;

    accent-color: var(--secondary);

}



/* Login */



.auth-layout {

    display: grid;

    width: min(100%, 470px);

    margin: clamp(28px, 9vh, 100px) auto 0;

}



.auth-logo {

    display: block;

    width: min(210px, 64vw);

    margin: 0 auto 20px;

}



.auth-card {

    padding: clamp(23px, 5vw, 34px);

}



.auth-title {

    margin: 0 0 7px;

    font-size: 1.8rem;

}



.auth-text {

    margin: 0 0 24px;

    color: var(--muted);

    line-height: 1.55;

}



/* Role cards and dashboard */



.role-list,

.list-stack {

    display: grid;

    gap: 11px;

}



.role-card {

    display: flex;

    gap: 15px;

    width: 100%;

    padding: 17px;

    align-items: center;

    border: 1px solid var(--border);

    border-radius: 13px;

    background: rgba(255, 255, 255, 0.66);

    color: var(--foreground);

    text-align: left;

}



.role-card:hover {

    border-color: rgba(106, 171, 68, 0.65);

    background: rgba(240, 250, 235, 0.92);

}



.role-icon {

    display: grid;

    width: 44px;

    height: 44px;

    place-items: center;

    flex: 0 0 auto;

    border-radius: 12px;

    background: rgba(106, 171, 68, 0.18);

    font-size: 1.4rem;

}



.role-card.superadmin .role-icon {

    background: rgba(151, 114, 220, 0.18);

}



.role-card.student .role-icon {

    background: rgba(61, 123, 224, 0.15);

}



.role-card-content {

    min-width: 0;

    flex: 1;

}



.role-title {

    display: block;

    font-weight: 750;

}



.role-description {

    display: block;

    overflow: hidden;

    margin-top: 3px;

    color: var(--muted);

    font-size: 0.88rem;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.role-arrow {

    color: var(--muted);

    font-size: 1.3rem;

}



.status-pill {

    display: inline-flex;

    padding: 3px 8px;

    border-radius: 999px;

    background: rgba(106, 171, 68, 0.17);

    color: #376c1c;

    font-size: 0.74rem;

    font-weight: 750;

}



.status-pill.warning {

    background: rgba(237, 174, 45, 0.18);

    color: #8e5b00;

}



.status-pill.danger {

    background: rgba(255, 87, 87, 0.16);

    color: #ad2c2c;

}



.stats {

    display: grid;

    gap: 12px;

    grid-template-columns: repeat(4, minmax(0, 1fr));

}



.stat-card {

    padding: 16px;

    border: 1px solid var(--border);

    border-radius: 12px;

    background: rgba(255, 255, 255, 0.57);

}



.stat-value {

    display: block;

    font-size: 1.55rem;

    font-weight: 800;

}



.stat-label {

    display: block;

    margin-top: 3px;

    color: var(--muted);

    font-size: 0.8rem;

}



/* Navigation tabs */



.tabs {

    display: flex;

    gap: 7px;

    overflow-x: auto;

    padding: 4px;

    border-radius: 12px;

    background: rgba(255, 255, 255, 0.48);

    scrollbar-width: thin;

}



.tab {

    flex: 0 0 auto;

    padding: 9px 12px;

    border: 0;

    border-radius: 8px;

    background: transparent;

    color: var(--muted);

    font-weight: 700;

}



.tab:hover {

    background: rgba(106, 171, 68, 0.1);

}



.tab.active {

    background: var(--surface-solid);

    color: var(--foreground);

    box-shadow: 0 3px 10px rgba(32, 50, 32, 0.1);

}



/* Lists */



.list-row {

    display: flex;

    gap: 14px;

    padding: 14px 0;

    align-items: center;

    border-bottom: 1px solid var(--border);

}



.list-row:last-child {

    padding-bottom: 0;

    border-bottom: 0;

}



.list-row:first-child {

    padding-top: 0;

}



.list-row-main {

    min-width: 0;

    flex: 1;

}



.list-row-title {

    overflow: hidden;

    font-weight: 750;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.list-row-meta {

    overflow: hidden;

    margin-top: 3px;

    color: var(--muted);

    font-size: 0.84rem;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.list-row-actions {

    display: flex;

    gap: 6px;

    flex-wrap: wrap;

    justify-content: flex-end;

}



.empty-state {

    padding: 28px 16px;

    color: var(--muted);

    text-align: center;

}



.notice {

    padding: 12px 14px;

    border: 1px solid rgba(237, 174, 45, 0.4);

    border-radius: 10px;

    background: rgba(255, 244, 207, 0.76);

    color: #765200;

    line-height: 1.5;

}



.notice.danger {

    border-color: rgba(255, 87, 87, 0.4);

    background: rgba(255, 230, 230, 0.78);

    color: #922b2b;

}



/* Rating */



.rating-category {

    margin-top: 18px;

}



.rating-category:first-child {

    margin-top: 0;

}



.rating-category-title {

    margin: 0 0 10px;

    color: #365626;

    font-size: 1rem;

}



.rating-skill {

    padding: 15px 0;

    border-bottom: 1px solid var(--border);

}



.rating-skill:last-child {

    border-bottom: 0;

}



.rating-skill-name {

    display: block;

    margin-bottom: 8px;

    font-weight: 750;

}



.rating-options {

    display: flex;

    gap: 7px;

    flex-wrap: wrap;

}



.rating-button {

    min-width: 48px;

    min-height: 42px;

    border: 1px solid var(--border);

    border-radius: 9px;

    background: white;

    font-weight: 800;

}



.rating-button.selected {

    border-color: var(--secondary-dark);

    background: var(--secondary);

    color: white;

}



.rating-help {

    margin: 7px 0 0;

    color: var(--muted);

    font-size: 0.8rem;

}



/* Dialog and toast */



.app-dialog {

    width: min(100% - 28px, 600px);

    padding: 0;

    border: 1px solid var(--border);

    border-radius: var(--radius);

    background: rgba(255, 255, 255, 0.96);

    box-shadow: 0 24px 70px rgba(25, 39, 25, 0.28);

}



.app-dialog::backdrop {

    background: rgba(25, 39, 25, 0.38);

    backdrop-filter: blur(4px);

}



.dialog-shell {

    padding: 20px;

}



.dialog-top {

    display: flex;

    gap: 16px;

    align-items: flex-start;

    justify-content: space-between;

}



.dialog-title {

    margin: 0;

    font-size: 1.25rem;

}



.dialog-close {

    width: 33px;

    height: 33px;

    font-size: 1.35rem;

}



.dialog-content {

    margin-top: 17px;

}



.dialog-actions {

    justify-content: flex-end;

    margin-top: 20px;

}



.toast-container {

    position: fixed;

    z-index: 50;

    right: 16px;

    bottom: 16px;

    display: grid;

    gap: 9px;

    width: min(390px, calc(100vw - 32px));

}



.toast {

    padding: 13px 15px;

    border: 1px solid var(--border);

    border-left: 5px solid var(--secondary);

    border-radius: 10px;

    background: rgba(255, 255, 255, 0.96);

    box-shadow: var(--shadow);

}



.toast.error {

    border-left-color: var(--primary);

}



.toast-title {

    display: block;

    font-size: 0.84rem;

    font-weight: 800;

}



.toast-text {

    display: block;

    margin-top: 3px;

    color: var(--muted);

    font-size: 0.85rem;

}



/* Loading */



.loading-state {

    display: grid;

    min-height: 45vh;

    place-items: center;

}



.loading-card {

    display: grid;

    gap: 13px;

    justify-items: center;

    color: var(--muted);

}



.loading-spinner {

    width: 38px;

    height: 38px;

    border: 4px solid rgba(106, 171, 68, 0.2);

    border-top-color: var(--secondary);

    border-radius: 50%;

    animation: spin 0.8s linear infinite;

}



@keyframes spin {

    to {

        transform: rotate(360deg);

    }

}



/* Responsive */



@media (max-width: 760px) {

    .app-header {

        min-height: 60px;

        padding: 8px 14px;

    }



    .brand {

        max-width: 120px;

    }



    .header-user-email {

        display: none;

    }



    .header-user-name {

        max-width: 150px;

        font-size: 0.8rem;

    }



    .grid.two-columns,

    .grid.three-columns,

    .form-grid.two-columns {

        grid-template-columns: 1fr;

    }



    .stats {

        grid-template-columns: repeat(2, minmax(0, 1fr));

    }



    .page-header {

        flex-direction: column;

    }



    .page-actions {

        width: 100%;

    }



    .page-actions .button {

        flex: 1;

    }



    .list-row {

        align-items: flex-start;

        flex-wrap: wrap;

    }



    .list-row-actions {

        width: 100%;

        justify-content: flex-start;

    }

}



@media (max-width: 420px) {

    .app-main {

        width: min(100% - 20px, var(--max-width));

        padding-top: 18px;

    }



    .header-user {

        display: none !important;

    }



    .stats {

        grid-template-columns: 1fr 1fr;

    }



    .role-card {

        padding: 13px;

    }



    .dialog-shell {

        padding: 16px;

    }

}



/* Student management */



.bulk-toolbar {

    display: flex;

    gap: 8px;

    flex-wrap: wrap;

    margin-top: 18px;

    padding: 12px;

    border: 1px solid var(--border);

    border-radius: 11px;

    background: rgba(239, 247, 235, 0.66);

}



.student-list,

.group-member-list,

.bulk-password-list,

.import-result-list {

    display: grid;

    gap: 8px;

}



.student-row {

    display: flex;

    gap: 12px;

    min-height: 68px;

    padding: 10px 12px;

    align-items: center;

    border: 1px solid var(--border);

    border-radius: 10px;

    background: rgba(255, 255, 255, 0.56);

}



.student-row.selected {

    border-color: rgba(61, 123, 224, 0.55);

    background: rgba(61, 123, 224, 0.1);

}



.student-selector {

    display: grid;

    width: 28px;

    height: 28px;

    place-items: center;

    flex: 0 0 auto;

    cursor: pointer;

}



.student-selector input {

    width: 19px;

    height: 19px;

    accent-color: var(--accent);

}



.student-row .list-row-main {

    flex: 1;

}



.student-row .list-row-actions {

    margin-left: auto;

}



.bulk-password-list {

    max-height: min(48vh, 460px);

    margin-top: 16px;

    overflow-y: auto;

    padding-right: 4px;

}



/* Result matrix */



.result-card {

    min-width: 0;

    padding: 0;

    overflow: hidden;

}



.result-table-wrap {

    width: 100%;

    max-width: calc(100vw - 28px);

    max-height: calc(100vh - 235px);

    overflow-x: auto;

    overflow-y: auto;

    overscroll-behavior: contain;

    -webkit-overflow-scrolling: touch;

}



.result-table {

    width: 100%;

    min-width: 720px;

    border-spacing: 0;

    border-collapse: separate;

    background: rgba(255, 255, 255, 0.68);

}



.result-table th,

.result-table td {

    padding: 9px;

    border-right: 1px solid var(--border);

    border-bottom: 1px solid var(--border);

    text-align: center;

}



.result-table thead th {

    position: sticky;

    z-index: 4;

    top: 0;

    background: rgba(247, 251, 245, 0.98);

    box-shadow: 0 2px 6px rgba(36, 57, 35, 0.06);

}



.result-table th:last-child,

.result-table td:last-child {

    border-right: 0;

}



.result-skill-column,

.result-skill-cell {

    position: sticky;

    z-index: 2;

    left: 0;

    min-width: 220px;

    max-width: 280px;

    background: rgba(250, 253, 249, 0.98);

    text-align: left !important;

}



.result-table thead .result-skill-column {

    z-index: 5;

}



.result-student-column {

    width: 38px;

    min-width: 38px;

    max-width: 38px;

    height: 172px;

    padding: 7px 5px !important;

    vertical-align: bottom;

    text-align: center;

}



.result-student-column span {

    display: block;

    max-height: 144px;

    margin: 0 auto;

    overflow: hidden;

    text-overflow: ellipsis;

    transform: rotate(180deg);

    writing-mode: vertical-rl;

    white-space: nowrap;

}



.result-category-row th {

    position: sticky;

    z-index: 1;

    left: 0;

    padding: 9px 13px;

    background: var(--secondary);

    color: white;

    text-align: left;

}



.result-skill-cell {

    font-size: 0.88rem;

    font-weight: 750;

}



.result-skill-cell small {

    display: block;

    margin-top: 3px;

    color: var(--muted);

    font-size: 0.7rem;

    font-weight: 500;

}



.result-rating-cell {

    min-width: 47px;

    font-weight: 850;

}



.result-rating-empty {

    background: rgba(150, 158, 150, 0.13);

    color: #788078;

}



.result-rating-1 {

    background: #ffb8b8 !important;

    color: #7e1515;

}



.result-rating-2 {

    background: #ffd89b !important;

    color: #7b4b00;

}



.result-rating-3 {

    background: #fff19c !important;

    color: #736400;

}



.result-rating-4 {

    background: #aeea9a !important;

    color: #245b1d;

}



.result-text-cell {

    min-width: 47px;

    background: rgba(61, 123, 224, 0.15);

    color: #20549e;

    font-size: 1.1rem;

    font-weight: 900;

}



.result-anonymous-cell {

    min-width: 160px;

    background: rgba(154, 113, 216, 0.12);

    text-align: left !important;

}



.result-anonymous-empty {

    color: var(--muted);

}



.anonymous-summary {

    display: grid;

    gap: 3px;

}



.anonymous-summary strong {

    color: #583a88;

}



.anonymous-summary small {

    color: #755a9e;

}



.result-legend {

    display: flex;

    gap: 7px;

    align-items: center;

    flex-wrap: wrap;

    margin: 0;

    padding: 14px 17px;

    color: var(--muted);

    font-size: 0.8rem;

}



.legend-item {

    display: inline-grid;

    width: 27px;

    height: 27px;

    place-items: center;

    border: 1px solid rgba(0, 0, 0, 0.1);

    border-radius: 6px;

    font-weight: 800;

}



@media (max-width: 760px) {

    .bulk-toolbar .button {

        flex: 1 1 calc(50% - 8px);

    }



    .result-table-wrap {

        max-height: calc(100vh - 190px);

    }

}



@media (max-width: 430px) {

    .bulk-toolbar .button {

        flex-basis: 100%;

    }



    .student-row {

        flex-wrap: wrap;

    }



    .student-row .list-row-actions {

        width: 100%;

        margin-left: 40px;

    }

}



/* Curriculum editor */



.curriculum-toolbar {

    display: flex;

    gap: 20px;

    align-items: center;

    justify-content: space-between;

}



.curriculum-categories {

    display: grid;

    gap: 16px;

}



.curriculum-category {

    padding: 18px;

}



.curriculum-category-header {

    display: flex;

    gap: 15px;

    align-items: flex-start;

    justify-content: space-between;

}



.curriculum-category-actions {

    margin-top: 15px;

    padding-top: 14px;

    border-top: 1px solid var(--border);

}



.curriculum-skill-list {

    display: grid;

    gap: 8px;

    margin-top: 14px;

}



.curriculum-skill {

    display: flex;

    gap: 10px;

    min-width: 0;

    padding: 10px;

    align-items: center;

    border: 1px solid var(--border);

    border-radius: 10px;

    background: rgba(255, 255, 255, 0.62);

}



.curriculum-skill-order {

    display: flex;

    gap: 4px;

    flex: 0 0 auto;

}



.curriculum-skill-order .icon-button {

    width: 30px;

    height: 30px;

}



.curriculum-skill-main {

    display: grid;

    min-width: 0;

    flex: 1;

}



.curriculum-skill-main strong {

    overflow: hidden;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.curriculum-skill-main span {

    margin-top: 3px;

    color: var(--muted);

    font-size: 0.75rem;

}



.curriculum-skill-actions {

    display: flex;

    gap: 7px;

    align-items: center;

    flex-wrap: wrap;

    justify-content: flex-end;

}



.curriculum-skill-actions select {

    min-height: 33px;

    max-width: 175px;

    padding: 5px 8px;

    border: 1px solid var(--border);

    border-radius: 7px;

    background: white;

}



/* Enabled skills editor */



.enabled-skills-global-actions {

    display: flex;

    gap: 8px;

    align-items: center;

    flex-wrap: wrap;

    padding-bottom: 14px;

    border-bottom: 1px solid var(--border);

}



.enabled-skills-counter {

    margin-left: auto;

    color: var(--muted);

    font-size: 0.82rem;

    font-weight: 700;

}



.enabled-skills-categories {

    display: grid;

    gap: 12px;

    margin-top: 15px;

}



.enabled-skills-category {

    padding: 13px;

    border: 1px solid var(--border);

    border-radius: 11px;

    background: rgba(247, 251, 245, 0.72);

}



.enabled-skills-category-header {

    display: flex;

    gap: 12px;

    align-items: center;

    justify-content: space-between;

}



.enabled-skills-category-header strong,

.enabled-skills-category-header small {

    display: block;

}



.enabled-skills-category-header small {

    margin-top: 2px;

    color: var(--muted);

    font-size: 0.76rem;

}



.enabled-skills-list {

    display: grid;

    gap: 6px;

    margin-top: 11px;

}



.enabled-skill-row {

    display: flex;

    gap: 10px;

    padding: 9px;

    align-items: center;

    border-radius: 8px;

    cursor: pointer;

}



.enabled-skill-row:hover {

    background: rgba(106, 171, 68, 0.1);

}



.enabled-skill-row input {

    position: absolute;

    opacity: 0;

    pointer-events: none;

}



.enabled-skill-checkmark {

    display: inline-grid;

    width: 21px;

    height: 21px;

    place-items: center;

    flex: 0 0 auto;

    border: 1px solid var(--border);

    border-radius: 6px;

    background: white;

}



.enabled-skill-row input:checked+.enabled-skill-checkmark {

    border-color: var(--secondary-dark);

    background: var(--secondary);

}



.enabled-skill-row input:checked+.enabled-skill-checkmark::after {

    color: white;

    content: "✓";

    font-size: 0.83rem;

    font-weight: 900;

}



.enabled-skill-name {

    display: grid;

    min-width: 0;

}



.enabled-skill-name strong {

    overflow: hidden;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.enabled-skill-name small {

    margin-top: 2px;

    color: var(--muted);

    font-size: 0.73rem;

}



@media (max-width: 760px) {



    .curriculum-toolbar,

    .curriculum-category-header {

        align-items: stretch;

        flex-direction: column;

    }



    .curriculum-skill {

        align-items: flex-start;

        flex-wrap: wrap;

    }



    .curriculum-skill-main {

        min-width: calc(100% - 84px);

    }



    .curriculum-skill-actions {

        width: 100%;

        justify-content: flex-start;

    }



    .enabled-skills-counter {

        width: 100%;

        margin-left: 0;

    }

}



.glass-card {

    min-width: 0;

}



.result-skill-column,

.result-skill-cell {

    min-width: 170px;

    max-width: 220px;

}



.result-rating-cell {

    width: 38px;

    min-width: 38px;

    padding: 8px 4px !important;

}



.sr-only {

    position: absolute;

    width: 1px;

    height: 1px;

    overflow: hidden;

    margin: -1px;

    padding: 0;

    border: 0;

    clip: rect(0, 0, 0, 0);

    white-space: nowrap;

}



.header-menu-button {

    display: inline-flex;

    gap: 4px;

    align-items: center;

    justify-content: center;

}



.menu-icon {

    font-size: 1.45rem;

    font-weight: 850;

    line-height: 1;

}



.session-device-title {

    display: flex;

    gap: 7px;

    min-width: 0;

    align-items: center;

}



.session-device-name {

    display: block;

    min-width: 0;

    overflow: hidden;

    text-overflow: ellipsis;

    white-space: nowrap;

}



/* Administration and staff search */



.inline-search {

    display: flex;

    gap: 9px;

    align-items: end;

}



.inline-search .field {

    flex: 1;

}



.search-results {

    display: grid;

    max-height: 260px;

    overflow-y: auto;

    border: 1px solid var(--border);

    border-radius: 10px;

    background: rgba(255, 255, 255, 0.54);

}



.search-results .list-row {

    padding-right: 12px;

    padding-left: 12px;

}



.new-user-details {

    border: 1px solid var(--border);

    border-radius: 10px;

    background: rgba(239, 247, 235, 0.55);

}



.new-user-details summary {

    padding: 12px;

    cursor: pointer;

    font-weight: 750;

}



.new-user-form {

    padding: 0 12px 12px;

}



/* Feedback inbox */



.feedback-item {

    padding: 14px;

    border: 1px solid var(--border);

    border-radius: 10px;

    background: rgba(255, 255, 255, 0.58);

}



.feedback-item-meta {

    color: var(--muted);

    font-size: 0.78rem;

    font-weight: 750;

}



.feedback-item p {

    margin: 8px 0 0;

    white-space: pre-wrap;

    line-height: 1.55;

}



.feedback-pagination {

    align-items: center;

    justify-content: center;

    margin-top: 20px;

}



.feedback-page-info {

    color: var(--muted);

    font-size: 0.85rem;

    font-weight: 700;

}



@media (max-width: 640px) {

    .inline-search {

        align-items: stretch;

        flex-direction: column;

    }



    .inline-search .button {

        width: 100%;

    }

}



/* Rating history */



.student-history-layout {

    display: grid;

    gap: 16px;

    grid-template-columns: minmax(220px, 0.9fr) minmax(300px, 1.8fr) 112px;

    align-items: stretch;

}



.student-history-skills {

    min-width: 0;

}



.history-skill-categories {

    display: grid;

    gap: 16px;

    margin-top: 18px;

}



.history-skill-category h3 {

    margin: 0 0 7px;

    color: #365626;

    font-size: 0.92rem;

}



.history-skill-list {

    display: grid;

    gap: 5px;

}



.history-skill-button {

    display: grid;

    gap: 2px;

    width: 100%;

    padding: 9px 10px;

    border: 1px solid transparent;

    border-radius: 8px;

    background: transparent;

    color: var(--foreground);

    text-align: left;

}



.history-skill-button:hover {

    background: rgba(106, 171, 68, 0.1);

}



.history-skill-button.selected {

    border-color: rgba(106, 171, 68, 0.55);

    background: rgba(106, 171, 68, 0.18);

}



.history-skill-button span {

    overflow: hidden;

    font-size: 0.87rem;

    font-weight: 750;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.history-skill-button small {

    color: var(--muted);

    font-size: 0.72rem;

}



.student-history-value-card {

    display: grid;

    min-height: 410px;

    grid-template-rows: auto 1fr;

}



.history-date-header,

.history-table-header {

    display: flex;

    gap: 14px;

    align-items: flex-start;

    justify-content: space-between;

}



.history-date-badge {

    display: inline-flex;

    max-width: 220px;

    padding: 6px 9px;

    align-items: center;

    border-radius: 8px;

    background: rgba(61, 123, 224, 0.12);

    color: #245998;

    font-size: 0.79rem;

    font-weight: 750;

    line-height: 1.3;

    text-align: right;

}



.student-history-value-content {

    display: grid;

    min-height: 260px;

    place-items: center;

    padding: 24px 0;

}



.history-value-empty {

    max-width: 320px;

    color: var(--muted);

    text-align: center;

}



.history-loading {

    color: var(--muted);

    font-weight: 750;

}



.history-numeric-value {

    display: grid;

    width: min(220px, 75%);

    aspect-ratio: 1;

    place-items: center;

    border: 1px solid rgba(0, 0, 0, 0.12);

    border-radius: 24px;

    font-size: clamp(2.2rem, 7vw, 4.5rem);

    font-weight: 850;

}



.history-text-value {

    width: min(100%, 600px);

    padding: 20px;

    border: 1px solid rgba(61, 123, 224, 0.24);

    border-radius: 14px;

    background: rgba(61, 123, 224, 0.1);

    color: #204d88;

    line-height: 1.65;

    white-space: pre-wrap;

}



.history-slider-card {

    display: flex;

    gap: 12px;

    min-height: 410px;

    align-items: center;

    flex-direction: column;

    justify-content: center;

    padding: 16px 12px;

}



.history-slider-date {

    color: #365626;

    font-size: 0.8rem;

    font-weight: 850;

    text-align: center;

}



.history-vertical-slider {

    width: 28px;

    height: 245px;

    margin: 4px 0;

    accent-color: var(--secondary);

    cursor: pointer;

    writing-mode: vertical-lr;

    direction: rtl;

}



.history-slider-labels {

    display: grid;

    gap: 8px;

    color: var(--muted);

    font-size: 0.68rem;

    text-align: center;

}



.teacher-history-layout {

    display: grid;

    gap: 16px;

    grid-template-columns: minmax(0, 1fr) 112px;

    align-items: stretch;

}



.teacher-history-table-card {

    min-width: 0;

}



.teacher-history-slider-card {

    min-height: 500px;

}



.history-table-header {

    padding: 18px 18px 0;

}



@media (max-width: 900px) {

    .student-history-layout {

        grid-template-columns: minmax(190px, 0.85fr) minmax(260px, 1.5fr) 95px;

    }



    .history-slider-card {

        min-width: 0;

    }

}



@media (max-width: 700px) {

    .student-history-layout {

        grid-template-columns: 1fr;

    }



    .student-history-skills {

        order: 1;

    }



    .student-history-value-card {

        order: 2;

    }



    .history-slider-card {

        order: 3;

        min-height: 130px;

        flex-direction: row;

    }



    .history-vertical-slider {

        width: min(68vw, 340px);

        height: 28px;

        writing-mode: initial;

        direction: initial;

    }



    .history-slider-labels {

        display: flex;

        gap: 12px;

        justify-content: space-between;

        width: min(68vw, 340px);

    }



    .teacher-history-layout {

        grid-template-columns: 1fr;

    }



    .teacher-history-slider-card {

        min-height: 130px;

    }



    .history-date-header,

    .history-table-header {

        flex-direction: column;

    }



    .history-date-badge {

        max-width: 100%;

        text-align: left;

    }

}



/* Compact student rating table */



.student-rating-card {

    padding: 0;

    overflow: hidden;

}



.student-rating-table-wrap {

    width: 100%;

    overflow-x: auto;

}



.student-rating-table {

    width: 100%;

    border-spacing: 0;

    border-collapse: separate;

    table-layout: fixed;

}



.student-rating-table th,

.student-rating-table td {

    padding: 11px 14px;

    border-right: 1px solid var(--border);

    border-bottom: 1px solid var(--border);

    vertical-align: middle;

}



.student-rating-table th:last-child,

.student-rating-table td:last-child {

    border-right: 0;

}



.student-rating-table tbody tr:last-child th,

.student-rating-table tbody tr:last-child td {

    border-bottom: 0;

}



.student-rating-table thead th {

    background: rgba(247, 251, 245, 0.96);

    color: var(--muted);

    font-size: 0.76rem;

    font-weight: 800;

    letter-spacing: 0.04em;

    text-align: left;

    text-transform: uppercase;

}



.student-rating-table thead th:first-child {

    width: 38%;

}



.student-rating-category-row th {

    padding: 8px 14px;

    border-right: 0;

    background: rgba(106, 171, 68, 0.16);

    color: #365f21;

    font-size: 0.86rem;

    font-weight: 800;

    text-align: left;

}



.student-rating-skill-name {

    background: rgba(250, 253, 249, 0.72);

    font-size: 0.9rem;

    font-weight: 750;

    line-height: 1.35;

    text-align: left;

}



.student-rating-skill-name span,

.student-rating-skill-name small {

    display: block;

}



.student-rating-skill-name small {

    margin-top: 3px;

    color: #755a9e;

    font-size: 0.7rem;

    font-weight: 700;

}



.student-rating-control {

    background: rgba(255, 255, 255, 0.48);

}



.student-rating-options {

    display: grid;

    gap: 7px;

    grid-template-columns: repeat(4, minmax(74px, 1fr));

}



.student-rating-options .rating-button {

    width: 100%;

    min-width: 0;

    min-height: 40px;

    padding: 7px 8px;

    font-size: 1.06rem;

    letter-spacing: 0.03em;

    white-space: nowrap;

}



.student-rating-options .rating-button-1 {

    border-color: #e98c8c;

    background: #ffe0e0;

    color: #8c2020;

}



.student-rating-options .rating-button-2 {

    border-color: #e7ae5b;

    background: #ffe7be;

    color: #7b4b00;

}



.student-rating-options .rating-button-3 {

    border-color: #d8ca58;

    background: #fff6b7;

    color: #6f6200;

}



.student-rating-options .rating-button-4 {

    border-color: #75bd62;

    background: #ccefc0;

    color: #245b1d;

}



.student-rating-options .rating-button.selected {

    border-color: currentColor;

    box-shadow:

        0 0 0 2px rgba(255, 255, 255, 0.95),

        0 0 0 4px currentColor;

    filter: saturate(1.15);

    transform: none;

}



.student-rating-text-input {

    width: 100%;

    min-height: 40px;

    padding: 8px 10px;

    border: 1px solid rgba(61, 123, 224, 0.3);

    border-radius: 8px;

    background: rgba(61, 123, 224, 0.08);

    color: var(--foreground);

}



.student-rating-text-input:focus {

    border-color: var(--accent);

    box-shadow: 0 0 0 3px rgba(61, 123, 224, 0.14);

    outline: 0;

}



@media (max-width: 760px) {

    .student-rating-table {

        min-width: 620px;

    }



    .student-rating-table thead th:first-child {

        width: 210px;

    }



    .student-rating-options {

        grid-template-columns: repeat(4, minmax(76px, 1fr));

    }

}



/* Session device name truncation */



.session-device-title {

    display: flex;

    width: 100%;

    min-width: 0;

    max-width: 100%;

    gap: 7px;

    align-items: center;

    overflow: hidden;

}



.session-device-name {

    display: block;

    width: 0;

    min-width: 0;

    max-width: 100%;

    overflow: hidden;

    flex: 1 1 0;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.session-device-title .status-pill {

    flex: 0 0 auto;

}



.app-dialog .list-row,

.app-dialog .list-row-main,

.app-dialog .list-row-title {

    min-width: 0;

    max-width: 100%;

}



.app-dialog .list-row {

    overflow: hidden;

}



@media (max-width: 520px) {

    .app-dialog .list-row-actions {

        width: 100%;

    }

}



/* Compact result tables and interactive overflow content */



.compact-result-table-wrap {

    max-height: calc(100vh - 260px);

}



.compact-result-table th,

.compact-result-table td {

    padding: 5px 4px;

}



.compact-result-table .result-skill-column,

.compact-result-table .result-skill-cell {

    width: 170px;

    min-width: 170px;

    max-width: 170px;

}



.compact-result-table .result-student-column {

    width: 31px;

    min-width: 31px;

    max-width: 31px;

    height: 132px;

    padding: 4px 2px !important;

}



.compact-result-table .result-rating-cell,

.compact-result-table .result-text-cell {

    width: 31px;

    min-width: 31px;

    padding: 5px 2px !important;

    font-size: 0.8rem;

}



.compact-skill-label {

    display: block;

    width: 100%;

    min-width: 0;

    padding: 2px 0;

    overflow: hidden;

    border: 0;

    background: transparent;

    color: inherit;

    font-size: 0.8rem;

    font-weight: 750;

    line-height: 1.25;

    text-align: left;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.result-skill-cell.is-expanded .compact-skill-label {

    overflow: visible;

    white-space: normal;

}



.compact-student-name {

    display: block;

    width: 100%;

    height: 100%;

    padding: 0;

    border: 0;

    background: transparent;

    color: inherit;

}



.compact-student-name span {

    display: block;

    max-height: 110px;

    margin: 0 auto;

    overflow: hidden;

    font-size: 0.72rem;

    text-overflow: ellipsis;

    transform: rotate(180deg);

    writing-mode: vertical-rl;

    white-space: nowrap;

}



.compact-text-value {

    display: grid;

    width: 100%;

    min-width: 25px;

    min-height: 29px;

    padding: 0;

    place-items: center;

    border: 0;

    border-radius: 5px;

    background: transparent;

    color: inherit;

    font-size: 1rem;

    font-weight: 900;

}



.compact-text-value:hover,

.compact-text-value:focus-visible,

.compact-student-name:hover,

.compact-student-name:focus-visible,

.compact-skill-label:hover,

.compact-skill-label:focus-visible {

    background: rgba(61, 123, 224, 0.12);

}



/* History tabs */



.history-tabs {

    display: flex;

    gap: 7px;

    overflow-x: auto;

    padding: 5px;

    border: 1px solid rgba(255, 255, 255, 0.75);

    border-radius: 13px;

    background: rgba(255, 255, 255, 0.48);

    scrollbar-width: thin;

}



.history-tab {

    min-height: 40px;

    padding: 8px 14px;

    flex: 0 0 auto;

    border: 1px solid transparent;

    border-radius: 9px;

    background: transparent;

    color: var(--muted);

    font-weight: 750;

}



.history-tab:hover {

    background: rgba(106, 171, 68, 0.11);

}



.history-tab.active {

    border-color: rgba(106, 171, 68, 0.28);

    background: var(--surface-solid);

    color: var(--foreground);

    box-shadow: 0 4px 12px rgba(32, 50, 32, 0.09);

}



.history-tab-content {

    min-width: 0;

}



/* Horizontal date selector */



.history-date-control {

    display: grid;

    gap: 12px;

    padding: 15px 18px;

}



.history-date-control-header {

    display: flex;

    gap: 15px;

    align-items: center;

    justify-content: space-between;

}



.history-date-control-header>div {

    display: grid;

    gap: 3px;

}



.history-date-control-header strong {

    font-size: 0.92rem;

}



.history-horizontal-slider {

    width: 100%;

    height: 26px;

    margin: 0;

    accent-color: var(--secondary);

    cursor: pointer;

}



.history-horizontal-slider:disabled {

    cursor: default;

}



.history-horizontal-slider-labels {

    display: flex;

    justify-content: space-between;

    color: var(--muted);

    font-size: 0.72rem;

    font-weight: 700;

}



/* History overview */



.history-overview-grid,

.history-graphs-grid {

    display: grid;

    gap: 16px;

}



.history-stat-grid {

    display: grid;

    gap: 12px;

    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));

}



.history-stat-card {

    display: grid;

    min-width: 0;

    padding: 17px;

    border: 1px solid rgba(255, 255, 255, 0.82);

    border-radius: 14px;

    background: var(--surface);

    box-shadow: var(--shadow);

    backdrop-filter: blur(18px);

}



.history-stat-card strong {

    overflow: hidden;

    color: #355f22;

    font-size: clamp(1.35rem, 3vw, 1.9rem);

    line-height: 1.15;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.history-stat-card span {

    margin-top: 7px;

    font-size: 0.84rem;

    font-weight: 750;

}



.history-stat-card small {

    margin-top: 4px;

    color: var(--muted);

    font-size: 0.72rem;

    line-height: 1.4;

}



.history-overview-card {

    display: grid;

    gap: 20px;

}



.history-distribution {

    display: grid;

    gap: 11px;

}



.history-distribution-row {

    display: grid;

    gap: 9px;

    grid-template-columns: 72px minmax(80px, 1fr) 34px 44px;

    align-items: center;

}



.history-distribution-label {

    color: var(--muted);

    font-size: 0.76rem;

    font-weight: 750;

}



.history-distribution-track {

    position: relative;

    height: 13px;

    overflow: hidden;

    border-radius: 999px;

    background: rgba(100, 112, 100, 0.13);

}



.history-distribution-fill {

    position: absolute;

    inset: 0 auto 0 0;

    min-width: 0;

    border-radius: inherit;

    transition: width 0.25s ease;

}



.history-distribution-fill.level-0 {

    background: #e98c8c;

}



.history-distribution-fill.level-1 {

    background: #e7ae5b;

}



.history-distribution-fill.level-2 {

    background: #d8ca58;

}



.history-distribution-fill.level-3 {

    background: #75bd62;

}



.history-distribution-row strong {

    font-size: 0.84rem;

    text-align: right;

}



.history-distribution-row small {

    color: var(--muted);

    font-size: 0.72rem;

    text-align: right;

}



/* Responsive SVG graphs */



.history-graph-card {

    min-width: 0;

    padding: clamp(15px, 2.5vw, 22px);

    border: 1px solid rgba(255, 255, 255, 0.82);

    border-radius: var(--radius);

    background: var(--surface);

    box-shadow: var(--shadow);

    backdrop-filter: blur(18px);

}



.history-graph-card h3 {

    margin: 0;

    font-size: 1rem;

}



.history-graph-title-row {

    display: flex;

    gap: 14px;

    align-items: flex-start;

    justify-content: space-between;

}



.history-graph-legend {

    display: flex;

    gap: 10px;

    flex-wrap: wrap;

    justify-content: flex-end;

}



.history-graph-legend span {

    display: inline-flex;

    gap: 5px;

    align-items: center;

    color: var(--muted);

    font-size: 0.69rem;

    font-weight: 700;

}



.history-graph-legend i {

    display: inline-block;

    width: 9px;

    height: 9px;

    border-radius: 50%;

}



.history-svg-wrap {

    width: 100%;

    margin-top: 14px;

    overflow-x: auto;

}



.history-line-graph {

    display: block;

    width: 100%;

    min-width: 500px;

    height: auto;

}



.history-graph-grid-line {

    stroke: rgba(45, 72, 45, 0.12);

    stroke-width: 1;

}



.history-graph-axis-label {

    fill: #647064;

    font-family: inherit;

    font-size: 11px;

    font-weight: 650;

}



/* History state */



.history-state-card {

    min-width: 0;

}



.history-state-empty {

    color: var(--muted);

    font-size: 0.8rem;

}



.history-state-rating {

    display: flex;

    min-height: 40px;

    padding: 7px 10px;

    align-items: center;

    justify-content: center;

    border: 1px solid rgba(0, 0, 0, 0.09);

    border-radius: 8px;

    font-weight: 800;

    letter-spacing: 0.03em;

}



.history-text-value-button {

    display: grid;

    gap: 3px;

    width: 100%;

    min-width: 0;

    padding: 9px 10px;

    border: 1px solid rgba(61, 123, 224, 0.25);

    border-radius: 8px;

    background: rgba(61, 123, 224, 0.08);

    color: #204d88;

    text-align: left;

}



.history-text-value-button span {

    display: block;

    overflow: hidden;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.history-text-value-button small {

    color: #52739e;

    font-size: 0.68rem;

}



.history-full-text {

    max-height: min(58vh, 520px);

    overflow-y: auto;

    padding: 16px;

    border: 1px solid rgba(61, 123, 224, 0.24);

    border-radius: 11px;

    background: rgba(61, 123, 224, 0.08);

    color: #204d88;

    line-height: 1.65;

    overflow-wrap: anywhere;

    white-space: pre-wrap;

}



/* Anonymous text response reader */



.anonymous-summary-button {

    width: 100%;

    padding: 7px 9px;

    border: 1px solid rgba(131, 86, 183, 0.2);

    border-radius: 8px;

    background: rgba(131, 86, 183, 0.08);

    text-align: left;

}



.anonymous-summary-button:hover,

.anonymous-summary-button:focus-visible {

    border-color: rgba(131, 86, 183, 0.5);

    background: rgba(131, 86, 183, 0.14);

}



.anonymous-text-response-list {

    display: grid;

    gap: 9px;

    max-height: min(58vh, 520px);

    overflow-y: auto;

    padding-right: 3px;

}



.anonymous-text-response {

    padding: 13px;

    border: 1px solid rgba(131, 86, 183, 0.2);

    border-radius: 10px;

    background: rgba(131, 86, 183, 0.08);

}



.anonymous-text-response strong {

    color: #583a88;

    font-size: 0.75rem;

}



.anonymous-text-response p {

    margin: 7px 0 0;

    color: var(--foreground);

    line-height: 1.55;

    overflow-wrap: anywhere;

    white-space: pre-wrap;

}



/* History responsive adjustments */



@media (max-width: 760px) {



    .history-date-control-header,

    .history-graph-title-row {

        align-items: stretch;

        flex-direction: column;

    }



    .history-date-badge {

        align-self: flex-start;

    }



    .history-graph-legend {

        justify-content: flex-start;

    }



    .history-stat-grid {

        grid-template-columns: repeat(2, minmax(0, 1fr));

    }



    .history-line-graph {

        min-width: 560px;

    }



    .compact-result-table-wrap {

        max-height: calc(100vh - 210px);

    }

}



@media (max-width: 480px) {

    .history-tabs {

        width: 100%;

    }



    .history-tab {

        flex: 1 0 auto;

        padding-right: 10px;

        padding-left: 10px;

        font-size: 0.78rem;

    }



    .history-stat-grid {

        grid-template-columns: 1fr 1fr;

    }



    .history-stat-card {

        padding: 13px;

    }



    .history-stat-card strong {

        font-size: 1.25rem;

    }



    .history-distribution-row {

        gap: 6px;

        grid-template-columns: 62px minmax(55px, 1fr) 25px 37px;

    }



    .history-line-graph {

        min-width: 520px;

    }

}



/* Compact group tags in the student list */



.student-meta-line {

    display: flex;

    min-width: 0;

    gap: 7px;

    align-items: center;

}



.student-email {

    min-width: 0;

    overflow: hidden;

    flex: 0 1 auto;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.student-group-tags {

    display: flex;

    min-width: 0;

    gap: 4px;

    overflow: hidden;

    flex: 1 1 auto;

    align-items: center;

    white-space: nowrap;

}



.student-group-tag {

    display: inline-flex;

    max-width: 100px;

    padding: 1px 6px;

    overflow: hidden;

    flex: 0 0 auto;

    border-radius: 999px;

    background: rgba(106, 171, 68, 0.15);

    color: #376c1c;

    font-size: 0.67rem;

    font-weight: 750;

    line-height: 1.45;

    text-overflow: ellipsis;

    white-space: nowrap;

}



.student-row.selectable {

    cursor: pointer;

    transition:

        border-color 0.15s ease,

        background-color 0.15s ease,

        transform 0.15s ease;

}



.student-row.selectable:hover {

    border-color: rgba(61, 123, 224, 0.42);

    background: rgba(61, 123, 224, 0.07);

}



.student-row.selectable.selected:hover {

    background: rgba(61, 123, 224, 0.14);

}



.student-row.selectable:focus-visible {

    outline: 3px solid rgba(61, 123, 224, 0.4);

    outline-offset: 2px;

}



/* Fullscreen results view */



.app-main.fullscreen-results {

    width: 100%;

    height: calc(100dvh - var(--header-height));

    min-height: calc(100dvh - var(--header-height));

    margin: 0;

    padding: 0;

    overflow: hidden;

}



.fullscreen-results-page {

    display: flex;

    width: 100%;

    height: 100%;

    min-height: 0;

    gap: 0;

    flex-direction: column;

}



.fullscreen-results-page>.page-header {

    padding: 9px 14px;

    flex: 0 0 auto;

    align-items: center;

    border-bottom: 1px solid var(--border);

    background: rgba(255, 255, 255, 0.9);

    backdrop-filter: blur(16px);

}



.fullscreen-results-page>.page-header .page-title {

    font-size: clamp(1rem, 2vw, 1.35rem);

}



.fullscreen-results-page>.page-header .page-subtitle {

    margin-top: 2px;

    font-size: 0.78rem;

}



.fullscreen-results-page>.notice {

    margin: 8px 12px;

    flex: 0 0 auto;

}



.fullscreen-result-card {

    display: flex;

    min-height: 0;

    flex: 1 1 auto;

    flex-direction: column;

    border: 0;

    border-radius: 0;

    box-shadow: none;

}



.fullscreen-result-card .result-table-wrap {

    min-height: 0;

    max-width: 100vw;

    max-height: none;

    flex: 1 1 auto;

}



.fullscreen-result-card .result-legend {

    flex: 0 0 auto;

    border-top: 1px solid var(--border);

    background: rgba(255, 255, 255, 0.94);

}



/* Result table header: condensed by default, expanded when tapped */



.result-header-condensed .result-student-column {

    height: 38px;

    transition: height 0.2s ease;

}



.result-header-condensed .compact-student-name span {

    width: 25px;

    max-width: 25px;

    max-height: none;

    overflow: hidden;

    margin: 0 auto;

    font-size: 0.67rem;

    line-height: 1.2;

    text-overflow: ellipsis;

    transform: none;

    writing-mode: horizontal-tb;

    white-space: nowrap;

}



.result-header-condensed.is-header-expanded .result-student-column {

    height: 158px;

}



.result-header-condensed.is-header-expanded .compact-student-name span {

    width: auto;

    max-width: none;

    max-height: 138px;

    overflow: hidden;

    font-size: 0.72rem;

    text-overflow: ellipsis;

    transform: rotate(180deg);

    writing-mode: vertical-rl;

    white-space: nowrap;

}



/* History playback */



.history-date-actions {

    display: flex;

    gap: 8px;

    align-items: center;

    flex-wrap: wrap;

    justify-content: flex-end;

}



/* Skill bar graph */



.history-skill-bars-card {

    display: grid;

    min-width: 0;

    gap: 18px;

}



.history-skill-bargraph {

    display: grid;

    min-width: 0;

    grid-template-columns: 38px minmax(0, 1fr);

}



.history-skill-bar-axis {

    display: flex;

    height: 310px;

    padding: 0 7px 0 0;

    flex-direction: column;

    justify-content: space-between;

    color: var(--muted);

    font-size: 0.7rem;

    font-weight: 750;

    text-align: right;

}



.history-skill-bars {

    display: flex;

    width: 100%;

    min-width: 0;

    height: 310px;

    gap: 0;

    align-items: stretch;

    border-bottom: 1px solid rgba(45, 72, 45, 0.28);

    background:

        repeating-linear-gradient(to top,

            transparent 0,

            transparent calc(25% - 1px),

            rgba(45, 72, 45, 0.11) calc(25% - 1px),

            rgba(45, 72, 45, 0.11) 25%),

        rgba(255, 255, 255, 0.36);

}



.history-skill-bar {

    position: relative;

    display: block;

    min-width: 0;

    height: 100%;

    padding: 0;

    overflow: hidden;

    flex: 1 1 0;

    border: 0;

    border-radius: 0;

    background: transparent;

}



.history-skill-bar::after {

    position: absolute;

    z-index: 2;

    inset: 0;

    background: transparent;

    content: "";

    pointer-events: none;

}



.history-skill-bar:hover::after,

.history-skill-bar:focus-visible::after {

    background: rgba(61, 123, 224, 0.15);

    box-shadow: inset 0 0 0 2px rgba(61, 123, 224, 0.55);

}



.history-skill-bar:focus-visible {

    outline: 0;

}



.history-skill-bar-fill {

    position: absolute;

    right: 0;

    bottom: 0;

    left: 0;

    min-height: 0;

    transition:

        height 0.55s ease,

        background-color 0.25s ease;

    pointer-events: none;

}



.history-skill-bar-legend {

    display: flex;

    gap: 9px 14px;

    align-items: center;

    flex-wrap: wrap;

    color: var(--muted);

    font-size: 0.7rem;

    font-weight: 700;

}



.history-skill-bar-legend span {

    display: inline-flex;

    gap: 5px;

    align-items: center;

}



.history-skill-bar-legend i {

    display: inline-block;

    width: 10px;

    height: 10px;

    flex: 0 0 auto;

    border-radius: 3px;

}



.history-skill-bar-legend .level-empty {

    background: #c8cec8;

}



.history-skill-bar-legend .level-0 {

    background: #d83d3d;

}



.history-skill-bar-legend .level-1 {

    background: #e49a26;

}



.history-skill-bar-legend .level-2 {

    background: #c6ad20;

}



.history-skill-bar-legend .level-3 {

    background: #4c8b2a;

}



.history-skill-bar-legend .level-text {

    background: #3d7be0;

}



.history-skill-detail-value {

    display: grid;

    gap: 5px;

    padding: 16px;

    border-left: 7px solid var(--skill-color);

    border-radius: 10px;

    background: rgba(255, 255, 255, 0.72);

}



.history-skill-detail-value strong {

    font-size: 1.1rem;

}



.history-skill-detail-value small {

    color: var(--muted);

}



@media (max-width: 760px) {

    :root {

        --header-height: 60px;

    }



    .fullscreen-results-page>.page-header {

        flex-direction: row;

    }



    .fullscreen-results-page>.page-header .page-title-group {

        min-width: 0;

        flex: 1;

    }



    .fullscreen-results-page>.page-header .page-title,

    .fullscreen-results-page>.page-header .page-subtitle {

        overflow: hidden;

        text-overflow: ellipsis;

        white-space: nowrap;

    }



    .fullscreen-results-page>.page-header .page-actions {

        width: auto;

        flex: 0 0 auto;

    }



    .fullscreen-results-page>.page-header .page-actions .button {

        min-height: 34px;

        padding: 6px 9px;

        flex: 0 0 auto;

        font-size: 0.75rem;

    }



    .history-date-actions {

        justify-content: flex-start;

    }



    .history-skill-bargraph {

        grid-template-columns: 32px minmax(0, 1fr);

    }



    .history-skill-bar-axis,

    .history-skill-bars {

        height: 260px;

    }

}



@media (max-width: 520px) {

    .student-meta-line {

        align-items: flex-start;

        flex-direction: column;

    }



    .student-group-tags {

        width: 100%;

        max-width: 100%;

    }



    .fullscreen-results-page>.page-header .page-title-group {

        display: none;

    }



    .fullscreen-results-page>.page-header .page-actions {

        width: 100%;

    }



    .fullscreen-results-page>.page-header .page-actions .button {

        flex: 1 1 auto;

    }



    .history-skill-bar-axis,

    .history-skill-bars {

        height: 230px;

    }

}