:root {
    --background: #f4f7fb;
    --panel: #ffffff;
    --text: #172238;
    --muted: #718096;
    --primary: #6c63ff;
    --primary-dark: #534bd8;
    --primary-light: #efeeff;
    --border: #e4e9f2;
    --danger: #e55757;
    --warning: #a66900;
    --warning-light: #fff4df;
    --success: #18a978;
    --success-light: #e6faf4;
    --shadow: 0 18px 45px rgba(37, 49, 78, 0.1);
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    color: var(--text);
    background:
        radial-gradient(
            circle at 15% 10%,
            rgba(108, 99, 255, 0.1),
            transparent 25%
        ),
        var(--background);
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

body.pin-page {
    display: block;
}

.pin-gate {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px;
}

.pin-card {
    width: min(100%, 420px);
    padding: 40px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.pin-logo {
    margin-bottom: 28px;
}

.pin-card h1 {
    margin: 7px 0 9px;
    font-size: 29px;
}

.pin-intro {
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

.pin-form {
    display: grid;
    gap: 10px;
    margin-top: 28px;
}

.pin-form label {
    font-size: 13px;
    font-weight: 800;
}

.pin-form input {
    width: 100%;
    padding: 13px 15px;
    border: 1px solid var(--border);
    border-radius: 11px;
    outline: none;
    font-size: 20px;
    letter-spacing: 0.3em;
}

.pin-form input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(108, 99, 255, 0.12);
}

.pin-form .primary-button {
    margin-top: 6px;
}

.pin-error {
    margin: 21px 0 -7px;
    padding: 11px 13px;
    border-radius: 10px;
    color: #a12f2f;
    background: #fff0f0;
    font-size: 13px;
    font-weight: 700;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    cursor: pointer;
}

.sidebar {
    min-height: 100vh;
    padding: 28px 22px;
    border-right: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.97);
}

.brand {
    display: flex;
    align-items: center;
    gap: 13px;
    margin-bottom: 35px;
}

.logo {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: 15px;
    color: white;
    background: linear-gradient(135deg, #6c63ff, #9a77ff);
    box-shadow: 0 12px 24px rgba(108, 99, 255, 0.3);
    font-size: 25px;
    font-weight: 850;
}

.brand h1 {
    margin: 0;
}

.brand p {
    margin: 3px 0 0;
    color: var(--muted);
    font-size: 12px;
}

nav {
    display: grid;
    gap: 8px;
}

.nav-button {
    padding: 12px 14px;
    border: 0;
    border-radius: 11px;
    text-align: left;
    color: var(--muted);
    background: transparent;
    font-weight: 750;
}

.nav-button.active {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-button:disabled {
    cursor: default;
    opacity: 0.4;
}

.sidebar-note {
    margin-top: 35px;
    padding: 14px;
    border-radius: 13px;
    color: #526078;
    background: #f3f5f9;
    font-size: 12px;
    line-height: 1.5;
}

.sidebar-logout {
    margin-top: 12px;
}

.sidebar-logout .secondary-button {
    width: 100%;
}

main {
    position: relative;
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 42px;
}

.topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 28px;
}

.top-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.eyebrow {
    margin: 0;
    color: var(--primary);
    font-size: 12px;
    font-weight: 850;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

h2 {
    margin: 5px 0;
    font-size: 34px;
}

.subtitle {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
}

.primary-button,
.secondary-button,
.danger-button,
.icon-button,
.back-button,
.math-tool-button,
.warning-button,
.small-button {
    border: 0;
    border-radius: 11px;
    padding: 11px 16px;
    font-weight: 750;
    transition:
        transform 0.15s ease,
        box-shadow 0.15s ease,
        filter 0.15s ease;
}

.primary-button:hover,
.secondary-button:hover,
.warning-button:hover,
.small-button:hover {
    transform: translateY(-1px);
}

.primary-button:active,
.secondary-button:active,
.warning-button:active,
.small-button:active {
    transform: scale(0.97);
}

.primary-button {
    color: white;
    background: linear-gradient(135deg, #6c63ff, #8b7cff);
    box-shadow: 0 10px 22px rgba(108, 99, 255, 0.2);
}

.secondary-button,
.back-button {
    color: var(--text);
    background: #edf0f5;
}

.warning-button {
    color: var(--warning);
    background: var(--warning-light);
}

.small-button {
    padding: 7px 10px;
    color: var(--primary);
    background: var(--primary-light);
    font-size: 12px;
}

.back-button {
    margin-bottom: 18px;
}

.danger-button {
    padding: 8px 11px;
    color: var(--danger);
    background: #fff0f0;
}

.icon-button {
    padding: 5px 11px;
    color: var(--muted);
    background: #edf0f5;
    font-size: 22px;
}

.panel {
    margin-bottom: 26px;
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.panel-header h3 {
    margin: 0;
}

.panel-header p {
    margin: 5px 0;
    color: var(--muted);
}

form {
    display: grid;
    gap: 16px;
}

label {
    display: grid;
    gap: 7px;
    font-size: 13px;
    font-weight: 750;
}

input,
textarea,
select {
    width: 100%;
    padding: 12px 13px;
    border: 1px solid #dbe1eb;
    border-radius: 11px;
    outline: none;
    color: var(--text);
    background: white;
}

textarea {
    min-height: 105px;
    resize: vertical;
}

input:focus,
textarea:focus,
select:focus,
.math-editor:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.12);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-label input {
    width: auto;
}

.form-actions,
.study-actions,
.card-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 9px;
    flex-wrap: wrap;
}

.answer-actions {
    display: flex;
    justify-content: flex-end;
    gap: 9px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.learning-card,
.formula-card,
.topic-card {
    padding: 21px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: white;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease;
}

.learning-card:hover,
.formula-card:hover,
.topic-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 52px rgba(37, 49, 78, 0.14);
}

.card-icon {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 850;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 20px;
}

.badge,
.central-badge {
    display: inline-block;
    padding: 6px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 750;
}

.badge {
    color: var(--primary);
    background: var(--primary-light);
}

.central-badge {
    color: #126e5b;
    background: #e5faf4;
}

.formula-expression,
.selected-formula,
.study-formula {
    margin: 15px 0;
    color: var(--primary);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 30px;
    font-weight: 800;
}

.selected-formula {
    font-size: 42px;
}

.study-formula {
    padding: 20px;
    border-radius: 16px;
    color: white;
    background: linear-gradient(135deg, #171f38, #293761);
    font-size: 38px;
    text-align: center;
}

.empty-state {
    padding: 55px 20px;
    border: 1px dashed #cfd7e5;
    border-radius: 18px;
    text-align: center;
    color: var(--muted);
}

.empty-icon {
    width: 56px;
    height: 56px;
    display: grid;
    place-items: center;
    margin: 0 auto;
    border-radius: 17px;
    color: white;
    background: var(--primary);
    font-size: 25px;
}

.status-message {
    position: sticky;
    top: 16px;
    z-index: 20;
    margin-bottom: 16px;
    padding: 12px 15px;
    border-radius: 11px;
    color: #136c59;
    background: #e6faf5;
}

.status-message.error {
    color: #9e3333;
    background: #ffeded;
}

.hidden {
    display: none !important;
}

/* FORMULE-EDITOR */

.formula-editor-section {
    display: grid;
    gap: 10px;
}

.math-editor {
    min-height: 84px;
    padding: 15px;
    border: 1px solid #dbe1eb;
    border-radius: 13px;
    outline: none;
    background: white;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 29px;
}

.math-editor:empty::before {
    content: attr(data-placeholder);
    color: #9ba5b4;
    font-family: Inter, sans-serif;
    font-size: 14px;
}

.editor-toolbar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.math-tool-button {
    border: 1px solid #dbe1eb;
    background: white;
}

.editor-help {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
}

.formula-preview {
    padding: 17px 19px;
    border-radius: 14px;
    color: white;
    background: linear-gradient(135deg, #171f38, #293761);
}

.formula-preview-label {
    margin-bottom: 7px;
    color: #bbb8ff;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
}

.formula-preview-value {
    min-height: 40px;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 31px;
}

.symbol-keyboard {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 15px;
}

.symbol-panel {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
    gap: 7px;
    max-height: 280px;
    margin-top: 10px;
    overflow: auto;
}

.symbol-button {
    min-height: 43px;
    border: 1px solid #dfe5ee;
    border-radius: 10px;
    background: white;
    font-family: Georgia, serif;
    font-size: 18px;
}

.math-fraction {
    display: inline-grid;
    grid-template-rows: auto auto;
    min-width: 1.4em;
    margin: 0 0.12em;
    vertical-align: middle;
    text-align: center;
    line-height: 1.15;
}

.fraction-numerator {
    min-width: 1em;
    min-height: 1.1em;
    padding: 0 0.22em 0.08em;
    border-bottom: 2px solid currentColor;
}

.fraction-denominator {
    min-width: 1em;
    min-height: 1.1em;
    padding: 0.08em 0.22em 0;
}

/* VRAGEN */

.questions-grid {
    display: grid;
    gap: 16px;
}

.question-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 20px;
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: white;
    box-shadow: var(--shadow);
}

.question-card p {
    white-space: pre-wrap;
    color: var(--muted);
}

.question-image {
    max-width: 240px;
    max-height: 180px;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: 12px;
}

.upload-preview {
    max-width: 360px;
    max-height: 240px;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: 12px;
}

/* OEFENEN */

.study-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 20px;
}

.study-card,
.session-card {
    padding: 25px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: white;
    box-shadow: var(--shadow);
}

.study-card {
    position: relative;
    overflow: hidden;
    transform-origin: center;
}

.study-question {
    margin: 0;
    max-width: 24ch;
    font-size: clamp(25px, 2.2vw, 36px);
    line-height: 1.22;
    letter-spacing: -.025em;
}

.study-question-heading {
    display: block;
    margin: 0 0 18px;
}

.study-question-media {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: stretch;
    margin: 30px 0 28px;
}

.study-question-content,
.study-question-image-panel {
    min-width: 0;
}

.study-question-image-panel {
    position: relative;
    display: flex;
    min-height: 300px;
    padding: 44px 16px 16px;
    flex-direction: column;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: linear-gradient(145deg, #fbfcff, #f4f5fb);
    box-shadow: 0 14px 34px rgba(31, 42, 68, .07);
}

.study-question-image-panel::before {
    content: "Afbeelding bij de vraag";
    position: absolute;
    top: 16px;
    left: 18px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.study-question-edit-button {
    flex: 0 0 auto;
    white-space: nowrap;
}

.study-question-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 8px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid #edf0f6;
}

.study-question-buttons #editStudyQuestionButton { order: 1; }
.study-question-buttons #addStudyQuestionButton { order: 2; }
.study-question-buttons #deleteStudyQuestionButton { order: 3; }

.study-question-buttons .small-button,
.study-question-buttons .danger-button {
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 12px;
}

.edit-question-box {
    margin-top: -4px;
    margin-bottom: 20px;
}

.edit-question-box textarea {
    min-height: 110px;
}

.add-question-box {
    display: grid;
    gap: 10px;
    margin-top: -4px;
    margin-bottom: 20px;
}

.add-question-box h4 {
    margin: 0 0 2px;
}

.add-question-box textarea {
    min-height: 92px;
}

.insert-position-options {
    display: grid;
    gap: 9px;
    margin: 6px 0 0;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(255, 255, 255, .82);
}

.insert-position-options legend {
    padding: 0 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}

.insert-position-options label {
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    align-items: start;
    gap: 11px;
    padding: 12px 13px;
    border: 1px solid #e5e8f2;
    border-radius: 10px;
    color: var(--text);
    background: white;
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.42;
    transition: border-color .16s ease, background .16s ease, box-shadow .16s ease;
}

.insert-position-options label:hover {
    border-color: #c7c2ff;
    background: #faf9ff;
}

.insert-position-options label:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, .08);
}

.insert-position-options input[type="radio"] {
    width: 20px;
    height: 20px;
    min-width: 20px;
    margin: 0;
    padding: 0;
    border: 0;
    box-shadow: none;
    accent-color: var(--primary);
}

.insert-position-options input[type="radio"]:focus {
    box-shadow: 0 0 0 3px rgba(108, 99, 255, .18);
}

.edit-question-box .editor-help {
    margin: 8px 0 0;
    color: var(--muted);
    font-size: 12px;
}

@media (max-width: 680px) {
    .study-question-edit-button {
        align-self: flex-start;
    }

    .study-question-buttons {
        justify-content: flex-start;
    }
}

@media (max-width: 1050px) {
    .study-question-media {
        grid-template-columns: 1fr;
    }
}

.study-image {
    display: block;
    width: 100%;
    max-width: 100%;
    max-height: 390px;
    margin: 0 0 14px;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: white;
    cursor: zoom-in;
    transition: transform .18s ease, box-shadow .18s ease;
}

.study-image:hover,
.study-image:focus-visible {
    transform: scale(1.012);
    box-shadow: 0 12px 28px rgba(31, 42, 68, .13);
    outline: none;
}

.study-image-lightbox {
    position: fixed;
    z-index: 1000;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 24px;
}

.study-image-lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(16, 25, 46, .78);
    backdrop-filter: blur(4px);
}

.study-image-lightbox-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    width: min(1100px, 100%);
    max-height: min(850px, calc(100vh - 48px));
    padding: 14px;
    border-radius: 20px;
    background: white;
    box-shadow: 0 24px 80px rgba(0, 0, 0, .32);
}

.study-image-lightbox-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 2px 2px 13px 8px;
}

.study-image-lightbox-header h3 {
    margin: 0;
    font-size: 15px;
}

.study-image-lightbox-header .icon-button {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    padding: 0;
    border-radius: 50%;
    font-size: 28px;
    line-height: 1;
}

#studyImageLightboxImage {
    display: block;
    width: 100%;
    min-height: 0;
    max-height: calc(100vh - 150px);
    object-fit: contain;
    border-radius: 11px;
    background: #f4f6fa;
}

@media (max-width: 600px) {
    .study-image-lightbox {
        padding: 12px;
    }

    .study-image-lightbox-content {
        max-height: calc(100vh - 24px);
        padding: 10px;
    }

    #studyImageLightboxImage {
        max-height: calc(100vh - 118px);
    }
}

.study-image-dropzone {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    padding: 18px;
    border: 2px dashed #cfd5e3;
    border-radius: 14px;
    color: var(--muted);
    background: rgba(255, 255, 255, .78);
    cursor: pointer;
    transition: border-color .18s ease, background .18s ease, transform .18s ease;
}

.study-question-image-panel.has-image {
    justify-content: flex-start;
}

.study-question-image-panel.has-image .study-image-dropzone {
    padding: 10px 12px;
    border-width: 1px;
}

.study-question-image-panel.has-image .study-image-dropzone-icon {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
    font-size: 16px;
}

.study-question-image-panel.has-image .study-image-dropzone small {
    display: none;
}

.study-image-dropzone:hover,
.study-image-dropzone:focus-visible,
.study-image-dropzone.drag-over {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
    outline: none;
}

.study-image-dropzone.drag-over {
    transform: translateY(-2px);
}

.study-image-dropzone.uploading {
    pointer-events: none;
    opacity: .7;
}

.study-image-dropzone-icon {
    display: grid;
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    place-items: center;
    border-radius: 10px;
    color: white;
    background: var(--primary);
    font-size: 20px;
    font-weight: 800;
}

.study-image-dropzone span:last-child {
    display: grid;
    gap: 3px;
}

.study-image-dropzone small {
    color: var(--muted);
}

.study-image-upload-status {
    min-height: 18px;
    margin: 8px 2px 0;
    color: var(--muted);
    font-size: 12px;
}

.study-image-upload-status.success {
    color: #198754;
}

.study-image-upload-status.error {
    color: #b42318;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.progress-track {
    height: 8px;
    margin: 18px 0;
    overflow: hidden;
    border-radius: 999px;
    background: #edf0f5;
}

.progress-bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #6c63ff, #a079ff);
    transition: width 0.4s ease;
}

.step-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 16px 0;
}

.step {
    padding: 7px 10px;
    border-radius: 999px;
    color: #788397;
    background: #eef1f5;
    font-size: 12px;
    font-weight: 750;
}

.step.active {
    color: var(--primary);
    background: var(--primary-light);
}

.study-navigation {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    margin: 18px 0 8px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 15px;
    background: #f8fafc;
}

.study-navigation-button {
    min-width: 150px;
    margin: 0;
}

.study-navigation-button:disabled {
    cursor: not-allowed;
    opacity: .45;
    transform: none;
}

.study-navigation-status {
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 18px 0;
}

.comparison-box,
.explanation-box,
.reflection-box,
.edit-answer-box {
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 15px;
    background: #f8fafc;
}

.comparison-box h4 {
    margin: 0;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
}

.comparison-box p,
.explanation-box p {
    white-space: pre-wrap;
}

.model-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.edit-answer-box {
    margin-bottom: 18px;
    background: #f5f3ff;
}

.reflection-box {
    margin-top: 18px;
    background: #fffaf0;
}

.keyboard-tip {
    margin: 8px 0 14px;
    color: var(--muted);
    font-size: 12px;
}

kbd {
    padding: 3px 6px;
    border: 1px solid #d7dce5;
    border-radius: 5px;
    background: white;
    font-family: inherit;
    font-size: 11px;
}

.session-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.session-finished {
    padding: 35px 20px;
    text-align: center;
}

.finish-icon {
    font-size: 64px;
    animation: trophyBounce 0.8s ease;
}

.session-finished h3 {
    margin: 10px 0;
    font-size: 30px;
}

/* VASTE VRAAGVOLGORDE */

.question-order-panel {
    max-width: 920px;
}

.question-order-list {
    display: grid;
    gap: 10px;
}

.question-order-item {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: white;
    box-shadow: 0 7px 18px rgba(31, 42, 68, .05);
}

.question-order-number {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 12px;
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 850;
}

.question-order-content {
    display: grid;
    gap: 5px;
    min-width: 0;
    line-height: 1.45;
}

.question-order-content small {
    color: var(--muted);
}

.question-order-controls {
    display: flex;
    gap: 7px;
}

.question-order-move-button {
    min-width: 92px;
}

.question-order-move-button:disabled,
#saveQuestionOrderButton:disabled {
    cursor: not-allowed;
    opacity: .4;
    transform: none;
    box-shadow: none;
}

.question-order-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.question-order-save-status {
    margin-right: auto;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

/* VRAAGOVERGANGEN */

.study-card.question-leaving-success {
    animation: questionLeaveSuccess 0.42s ease forwards;
}

.study-card.question-leaving-repeat {
    animation: questionLeaveRepeat 0.42s ease forwards;
}

.study-card.question-entering {
    animation: questionEnter 0.48s cubic-bezier(.2, .8, .2, 1);
}

.study-card.success-pulse {
    animation: successPulse 0.55s ease;
}

.study-card.repeat-pulse {
    animation: repeatPulse 0.55s ease;
}

/* BELONINGSOVERLAY */

.reward-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: grid;
    place-items: center;
    pointer-events: none;
    background: rgba(16, 24, 45, 0.08);
    backdrop-filter: blur(1px);
}

.reward-bubble {
    position: relative;
    z-index: 2;
    display: grid;
    place-items: center;
    min-width: 210px;
    padding: 24px 28px;
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 24px;
    color: #11684f;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 25px 70px rgba(26, 48, 80, 0.22);
    animation: rewardPop 0.65s cubic-bezier(.18, .85, .25, 1.25);
}

.reward-overlay.repeat .reward-bubble {
    color: #8b5700;
}

.reward-icon {
    width: 70px;
    height: 70px;
    display: grid;
    place-items: center;
    margin-bottom: 10px;
    border-radius: 50%;
    color: white;
    background: linear-gradient(135deg, #18a978, #34cf99);
    box-shadow: 0 12px 28px rgba(24, 169, 120, 0.32);
    font-size: 38px;
    font-weight: 900;
}

.reward-overlay.repeat .reward-icon {
    background: linear-gradient(135deg, #f0a428, #ffc35a);
    box-shadow: 0 12px 28px rgba(240, 164, 40, 0.3);
}

.reward-bubble strong {
    font-size: 25px;
}

.reward-bubble span {
    margin-top: 5px;
    color: var(--muted);
    font-size: 13px;
}

.confetti-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    top: 48%;
    left: 50%;
    width: 10px;
    height: 16px;
    border-radius: 3px;
    opacity: 0;
    animation: confettiBurst 0.95s ease-out forwards;
}

/* ANIMATIES */

@keyframes rewardPop {
    0% {
        opacity: 0;
        transform: scale(0.55) translateY(18px);
    }

    55% {
        opacity: 1;
        transform: scale(1.08) translateY(-3px);
    }

    100% {
        transform: scale(1) translateY(0);
    }
}

@keyframes confettiBurst {
    0% {
        opacity: 1;
        transform:
            translate(-50%, -50%)
            rotate(0deg);
    }

    100% {
        opacity: 0;
        transform:
            translate(
                calc(-50% + var(--x)),
                calc(-50% + var(--y))
            )
            rotate(var(--rotation));
    }
}

@keyframes successPulse {
    0% {
        box-shadow: var(--shadow);
    }

    45% {
        box-shadow:
            0 0 0 7px rgba(24, 169, 120, 0.14),
            0 25px 55px rgba(24, 169, 120, 0.2);
        transform: scale(1.012);
    }

    100% {
        box-shadow: var(--shadow);
        transform: scale(1);
    }
}

@keyframes repeatPulse {
    0% {
        box-shadow: var(--shadow);
    }

    45% {
        box-shadow:
            0 0 0 7px rgba(240, 164, 40, 0.15),
            0 25px 55px rgba(240, 164, 40, 0.16);
        transform: scale(1.008);
    }

    100% {
        box-shadow: var(--shadow);
        transform: scale(1);
    }
}

@keyframes questionLeaveSuccess {
    0% {
        opacity: 1;
        transform: translateX(0) rotate(0);
    }

    100% {
        opacity: 0;
        transform: translateX(-75px) rotate(-1deg);
    }
}

@keyframes questionLeaveRepeat {
    0% {
        opacity: 1;
        transform: translateX(0);
    }

    100% {
        opacity: 0;
        transform: translateY(24px) scale(0.98);
    }
}

@keyframes questionEnter {
    0% {
        opacity: 0;
        transform: translateX(70px) scale(0.985);
    }

    100% {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes trophyBounce {
    0% {
        opacity: 0;
        transform: scale(0.5) rotate(-8deg);
    }

    60% {
        opacity: 1;
        transform: scale(1.15) rotate(4deg);
    }

    100% {
        transform: scale(1) rotate(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 1000px) {
    .grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .study-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 850px) {
    body {
        display: block;
    }

    .sidebar {
        min-height: auto;
        border-right: 0;
        border-bottom: 1px solid var(--border);
    }

    nav {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }
}

@media (max-width: 650px) {
    main {
        padding: 24px 16px;
    }

    .topbar {
        flex-direction: column;
    }

    .grid,
    nav,
    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .question-card {
        grid-template-columns: 1fr;
    }

    .question-image {
        max-width: 100%;
    }

    .study-navigation {
        grid-template-columns: 1fr 1fr;
    }

    .study-navigation-status {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .study-navigation-button {
        min-width: 0;
        width: 100%;
    }

    .question-order-item {
        grid-template-columns: 38px minmax(0, 1fr);
        align-items: start;
    }

    .question-order-controls {
        grid-column: 1 / -1;
    }

    .question-order-move-button {
        width: 50%;
        min-width: 0;
    }

    .question-order-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .question-order-save-status {
        min-height: 18px;
        margin: 0;
    }
}

/* Afbeelding verwijderen bij een vraag */
.remove-image-row {
    padding: 14px 16px;
    border: 1px solid #f0c9c9;
    border-radius: 14px;
    background: #fff7f7;
}

.remove-image-row .checkbox-label {
    color: #a33a3a;
    font-weight: 750;
}

.remove-image-row p {
    margin: 7px 0 0 30px;
    color: #8b5b5b;
    font-size: 13px;
    line-height: 1.45;
}

.remove-image-row input[type="checkbox"] {
    accent-color: #d9534f;
}


/* =========================================================
   BEGRIPPENKAART / MINDMAP
========================================================= */

.mindmap-topbar {
    align-items: flex-start;
}

.mindmap-intro {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.mindmap-intro > div:first-child {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mindmap-intro h3 {
    margin: 0 0 6px;
}

.mindmap-intro p {
    margin: 0;
    max-width: 760px;
}

.mindmap-intro-icon {
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    flex: 0 0 54px;
    border-radius: 18px;
    background: linear-gradient(
        145deg,
        #6657ff,
        #8a70ff
    );
    color: #fff;
    font-size: 28px;
    font-weight: 900;
    box-shadow: 0 12px 28px rgba(101, 87, 255, .2);
}

.mindmap-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    color: var(--muted, #748198);
    font-size: 13px;
    white-space: nowrap;
}

.mindmap-legend span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.mindmap-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
}

.mindmap-dot.new {
    background: #aeb8c7;
}

.mindmap-dot.repeat {
    background: #f0a329;
}

.mindmap-dot.mastered {
    background: #35a766;
}

.mindmap-canvas {
    position: relative;
    padding: 18px 0 60px;
}

.mindmap-root {
    position: relative;
    z-index: 3;
    width: min(380px, 100%);
    margin: 0 auto 44px;
    padding: 22px 26px;
    border-radius: 24px;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    column-gap: 14px;
    align-items: center;
    background:
        linear-gradient(
            145deg,
            #17284d,
            #263d75
        );
    color: white;
    box-shadow: 0 18px 48px rgba(28, 45, 85, .22);
}

.mindmap-root::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 100%;
    width: 2px;
    height: 46px;
    background: #cfd7e6;
}

.mindmap-root-symbol {
    grid-row: 1 / 3;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 16px;
    background: rgba(255,255,255,.13);
    font-size: 26px;
}

.mindmap-root strong {
    font-size: 21px;
}

.mindmap-root small {
    margin-top: 4px;
    opacity: .72;
}

.mindmap-branches {
    position: relative;
    display: grid;
    grid-template-columns:
        repeat(
            auto-fit,
            minmax(330px, 1fr)
        );
    gap: 26px;
}

.mindmap-branches::before {
    content: "";
    position: absolute;
    left: 8%;
    right: 8%;
    top: -18px;
    height: 2px;
    background: #cfd7e6;
}

.mindmap-branch {
    position: relative;
    min-width: 0;
}

.mindmap-branch::before {
    content: "";
    position: absolute;
    left: 50%;
    top: -18px;
    width: 2px;
    height: 18px;
    background: #cfd7e6;
}

.mindmap-formula-node {
    position: relative;
    z-index: 2;
    border: 1px solid #dfe5ef;
    border-radius: 22px;
    background: #fff;
    padding: 20px;
    box-shadow: 0 10px 32px rgba(41, 54, 88, .08);
}

.mindmap-formula-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.mindmap-formula-heading h3 {
    margin: 10px 0 0;
    font-size: 20px;
}

.mindmap-progress-number {
    display: grid;
    place-items: center;
    min-width: 50px;
    height: 34px;
    padding: 0 10px;
    border-radius: 999px;
    background: #f1efff;
    color: #6557ff;
    font-weight: 800;
    font-size: 13px;
}

.mindmap-formula-expression {
    margin: 16px 0 12px;
    padding: 14px;
    border-radius: 14px;
    background: #f7f8fc;
    color: #19243c;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 21px;
    text-align: center;
}

.mindmap-formula-node > p {
    min-height: 44px;
    margin: 0 0 14px;
    color: #66748b;
    line-height: 1.45;
}

.mindmap-progress-track {
    height: 7px;
    overflow: hidden;
    border-radius: 999px;
    background: #edf0f5;
    margin: 14px 0;
}

.mindmap-progress-track > span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(
        90deg,
        #6557ff,
        #8d72ff
    );
}

.mindmap-formula-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.mindmap-formula-actions button {
    flex: 1 1 140px;
}

.mindmap-topics {
    position: relative;
    margin: 20px 0 0 22px;
    padding-left: 26px;
    display: grid;
    gap: 10px;
}

.mindmap-topics::before {
    content: "";
    position: absolute;
    left: 0;
    top: -20px;
    bottom: 24px;
    width: 2px;
    background: #d9dfeb;
}

.mindmap-topic-node,
.mindmap-topic-empty {
    position: relative;
    width: 100%;
    border: 1px solid #e1e6ef;
    border-radius: 17px;
    background: #fff;
    padding: 14px 15px;
}

.mindmap-topic-node {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: center;
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition:
        transform .18s ease,
        border-color .18s ease,
        box-shadow .18s ease;
}

.mindmap-topic-node:hover {
    transform: translateX(4px);
    border-color: #8a7cff;
    box-shadow: 0 10px 24px rgba(73, 62, 180, .10);
}

.mindmap-topic-node::before {
    content: "";
    position: absolute;
    left: -28px;
    top: 50%;
    width: 27px;
    height: 2px;
    background: #d9dfeb;
}

.mindmap-topic-node::after {
    content: "";
    position: absolute;
    left: -32px;
    top: calc(50% - 4px);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #aeb8c7;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px #d9dfeb;
}

.mindmap-topic-node.mastered::after {
    background: #35a766;
}

.mindmap-topic-node.repeat::after {
    background: #f0a329;
}

.mindmap-topic-node.learning::after {
    background: #6557ff;
}

.mindmap-topic-main {
    min-width: 0;
}

.mindmap-topic-main strong {
    display: block;
    margin-bottom: 4px;
}

.mindmap-topic-main small {
    display: -webkit-box;
    overflow: hidden;
    color: #77849a;
    font-size: 12px;
    line-height: 1.35;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.mindmap-topic-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    color: #7b8798;
    font-size: 11px;
}

.mindmap-status {
    padding: 5px 8px;
    border-radius: 999px;
    background: #f1f3f7;
    font-weight: 700;
    white-space: nowrap;
}

.mindmap-status.mastered {
    color: #207a45;
    background: #e8f7ee;
}

.mindmap-status.repeat {
    color: #a56600;
    background: #fff3da;
}

.mindmap-status.learning {
    color: #5646de;
    background: #efedff;
}

.mindmap-status.new {
    color: #6f7c90;
}

.mindmap-topic-empty {
    color: #8a95a6;
    font-size: 13px;
    text-align: center;
}

@media (max-width: 900px) {
    .mindmap-intro {
        align-items: flex-start;
        flex-direction: column;
    }

    .mindmap-branches {
        grid-template-columns: 1fr;
    }

    .mindmap-branches::before {
        display: none;
    }

    .mindmap-branch::before {
        left: 28px;
    }

    .mindmap-root::after {
        left: 28px;
    }

    .mindmap-root {
        margin-left: 0;
    }

    .mindmap-formula-actions {
        flex-direction: column;
    }

    .mindmap-topic-node {
        grid-template-columns: 1fr;
    }

    .mindmap-topic-meta {
        justify-content: flex-start;
        flex-wrap: wrap;
    }
}

/* =========================================================
   PARAGRAFENSTRUCTUUR
========================================================= */
.paragraph-grid {
    display: grid;
    gap: 22px;
}

.paragraph-card {
    background: #fff;
    border: 1px solid var(--border, #dfe5ef);
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 12px 28px rgba(31, 42, 68, 0.06);
}

.paragraph-card-head,
.paragraph-counts,
.paragraph-concept-row,
.mindmap-paragraph-node,
.mindmap-paragraph-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.paragraph-card-head h3,
.mindmap-paragraph-node h3 {
    margin: 8px 0 0;
}

.paragraph-counts {
    justify-content: flex-start;
    margin-top: 16px;
    color: var(--muted, #748199);
    font-weight: 700;
}

.paragraph-concepts {
    margin-top: 20px;
    border-top: 1px solid var(--border, #e5e9f1);
    padding-top: 18px;
}

.paragraph-concepts h4,
.mindmap-concept-group h4,
.mindmap-formulas-group > h4 {
    margin: 0 0 12px;
    color: var(--muted, #6f7c94);
    font-size: .82rem;
    text-transform: uppercase;
    letter-spacing: .08em;
}

.paragraph-concept-row {
    padding: 12px 0;
    border-bottom: 1px solid var(--border, #edf0f5);
}

.paragraph-concept-row > div:first-child {
    flex: 1;
    min-width: 0;
}

.paragraph-concept-row small {
    display: block;
    margin-top: 4px;
    color: var(--muted, #7a879e);
}

.muted-inline {
    color: var(--muted, #7a879e);
    margin: 0;
}

.formula-paragraph-label {
    display: block;
    color: var(--primary, #6d5dfc);
    font-weight: 800;
    margin-top: -4px;
    margin-bottom: 12px;
}

.mindmap-paragraphs {
    display: grid;
    gap: 34px;
    width: min(1180px, 100%);
    margin: 34px auto 0;
}

.mindmap-paragraph-branch {
    position: relative;
    display: grid;
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.mindmap-paragraph-branch::before {
    content: "";
    position: absolute;
    left: -24px;
    top: 38px;
    width: 24px;
    border-top: 2px solid #cfd7ea;
}

.mindmap-paragraph-node {
    align-items: flex-start;
    flex-direction: column;
    background: linear-gradient(145deg, #f3f0ff, #ffffff);
    border: 2px solid #8c79ff;
    border-radius: 22px;
    padding: 20px;
    box-shadow: 0 12px 30px rgba(92, 74, 210, .08);
}

.mindmap-paragraph-node p {
    margin: 10px 0 0;
    color: var(--muted, #6f7c94);
}

.mindmap-paragraph-summary {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
    color: #6557cb;
    font-size: .82rem;
    font-weight: 800;
}

.mindmap-paragraph-content {
    display: grid;
    gap: 22px;
    min-width: 0;
}

.mindmap-concept-group,
.mindmap-formulas-group {
    display: grid;
    gap: 12px;
}

.mindmap-concept-node {
    width: 100%;
    border: 1px solid #dfe5ef;
    border-radius: 16px;
    background: #fff;
    padding: 14px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
    cursor: pointer;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.mindmap-concept-node:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(31,42,68,.08);
    border-color: #a99cff;
}

.mindmap-concept-icon {
    color: #8a76ff;
    font-size: .8rem;
}

.mindmap-formula-wrap {
    display: grid;
    grid-template-columns: minmax(300px, .9fr) minmax(280px, 1.1fr);
    gap: 16px;
    align-items: start;
}

.mindmap-topics.compact {
    margin-top: 0;
}

@media (max-width: 1050px) {
    .mindmap-paragraph-branch,
    .mindmap-formula-wrap {
        grid-template-columns: 1fr;
    }
    .mindmap-paragraph-branch::before { display:none; }
}

@media (max-width: 700px) {
    .paragraph-card-head,
    .paragraph-concept-row,
    .mindmap-concept-node {
        align-items: stretch;
        flex-direction: column;
    }
    .mindmap-topic-meta { width:100%; }
}

/* Visual structure editor */
.structure-toolbar {display:flex;align-items:center;gap:1rem;flex-wrap:wrap;background:#fff;border:1px solid #dce3ef;border-radius:16px;padding:1.2rem;margin:1rem 0 1.5rem}
.structure-toolbar>div {flex:1;min-width:220px}.structure-toolbar p {margin:.35rem 0;color:#56647a;font-size:1rem}
.structure-toolbar [aria-pressed=true]{background:#20365f}
.structure-example {flex-basis:100%;border-top:1px solid #e3e8f1;padding-top:1rem}.structure-example summary{cursor:pointer;font-weight:600}.structure-example ul{list-style:none;border-left:2px solid #d2caff;padding-left:1.4rem;margin:.8rem}.structure-example li{padding:.35rem}.structure-example-add{color:#6551d5}
.structure-root {background:#20365f;color:#fff;border-radius:16px;padding:1.5rem;margin-bottom:1rem}.structure-root h3{margin:.4rem 0;font-size:1.5rem}.structure-root p{color:#d8e1f3}.structure-root .structure-type{color:#d4caff}
.structure-branch {border:1px solid #dce3ef;border-radius:12px;background:white;margin:.8rem 0;padding:.2rem 1rem;min-width:0}.structure-branch>summary{cursor:pointer;padding:1rem 0;font-size:1rem;overflow-wrap:anywhere}.structure-branch>summary strong{margin-left:.6rem}.structure-type{font-size:.875rem;color:#6551d5;font-weight:700}.structure-count{display:inline-block;margin-left:.75rem;color:#64748b;font-size:.875rem}.structure-children{border-left:2px solid #ddd6fe;padding-left:1.2rem;margin:1rem 0}.structure-actions{display:flex;gap:.6rem;flex-wrap:wrap;margin:.6rem 0 1rem}.structure-add{border:1px dashed #a69ae7;border-radius:8px;padding:.65rem .85rem;background:#faf9ff;color:#5039b8;font:inherit;font-size:.9rem;cursor:pointer}.structure-add:hover{background:#eeeaff}.structure-add:focus-visible, .structure-branch summary:focus-visible{outline:3px solid #6551d5;outline-offset:3px}.structure-empty{color:#64748b;padding:1rem;font-size:1rem}.structure-expression{white-space:pre-wrap;font-size:1.25rem}.structure-question{background:#f6f8fc;border-radius:8px;padding:.9rem;margin:.7rem 0}.structure-question summary{cursor:pointer;white-space:pre-wrap}.structure-question p{white-space:pre-wrap}.structure-question img{display:block;max-width:100%;max-height:260px;object-fit:contain}.structure-questions{padding:.3rem 0;color:#374151}
.structure-dialog{border:0;border-radius:18px;padding:1.7rem;width:min(650px,92vw);max-height:88vh;overflow:auto;box-shadow:0 20px 80px #10204044;color:#17263e}.structure-dialog::backdrop{background:#15274388}.structure-dialog h2{margin-top:0}.structure-dialog label{display:block;font-weight:600;font-size:1rem;margin:1rem 0}.structure-dialog input,.structure-dialog textarea{display:block;box-sizing:border-box;width:100%;margin-top:.4rem;border:1px solid #cbd5e1;border-radius:8px;padding:.7rem;font:inherit;background:white;color:#17263e}.structure-dialog textarea{min-height:90px;resize:vertical}.structure-path{color:#64748b;font-size:.9rem;overflow-wrap:anywhere}.structure-placement{background:#f1eeff;border-left:3px solid #7864ee;padding:.85rem;overflow-wrap:anywhere}.structure-error{color:#b42318}.structure-dialog button:disabled{opacity:.6;cursor:wait}
@media(max-width:650px){.structure-toolbar{padding:1rem}.structure-children{padding-left:.6rem}.structure-branch{padding:0 .65rem}.structure-branch>summary strong{display:inline;margin-left:.3rem}.structure-dialog{padding:1rem}.structure-actions button{min-height:44px}.structure-root{padding:1rem}}
.structure-editing .mindmap-intro {display:none}
@media(max-width:650px){.sidebar{padding:1rem}.sidebar nav{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.75rem}.sidebar .nav-button{width:auto;flex:1 1 auto;padding:.6rem;font-size:.875rem;text-align:center}.sidebar .nav-button:disabled{display:none}.sidebar .sidebar-note{display:none}.sidebar .sidebar-logout{margin-top:.65rem}.sidebar .logo{margin-bottom:0}}
.structure-dialog select {display:block;box-sizing:border-box;width:100%;margin-top:.4rem;border:1px solid #cbd5e1;border-radius:8px;padding:.7rem;font:inherit;background:white;color:#17263e}.structure-dialog .link-new.hidden{display:none}