/* ========================================================================== 
   Grundfarben und globale Elemente
   ========================================================================== */

:root {
    --page-background: #dadcdd;
    --text: #263641;
    --muted: #5d707d;
    --focus: #039ee6;
    --header: #002342;
    --navbar: #247caf;
    --navbar-dark: #155b89;
    --sidebar: #ffffff;
    --sidebar-active: #dfeaf2;
    --sidebar-text: #164f79;
    --header-height: 82px;
    --toolbar-height: 58px;
    --sidebar-wide: 250px;
    --sidebar-compact: 76px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background: var(--page-background);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
}

button,
input {
    font: inherit;
}

a,
button,
input,
summary {
    outline-offset: 3px;
}

:focus-visible {
    outline: 3px solid rgba(3, 158, 230, .4);
}

code {
    padding: .1em .3em;
    border-radius: 3px;
    color: #183b54;
    background: #edf3f6;
}

/* ========================================================================== 
   Formulare und Meldungen
   ========================================================================== */

.flat-label {
    display: block;
    margin-bottom: 4px;
    color: #087fb7;
    font-size: .88rem;
}

.flat-text {
    width: 100%;
    min-height: 42px;
    margin-bottom: 12px;
    padding: 8px 10px;
    border: 1px solid #b7c2c9;
    border-radius: 3px;
    color: var(--text);
    background: #fff;
}

.flat-text:focus {
    border-color: var(--focus);
    outline: 3px solid rgba(3, 158, 230, .16);
}

.flashmsg {
    padding: 5px;
    font-size: .88rem;
    line-height: 1.45;
}

.flashmsg-info {
    color: #56636b;
}

.flashmsg-success {
    color: #19713e;
}

.flashmsg-warning {
    color: #a35c00;
}

.flashmsg-error {
    color: #b42318;
}

/* ========================================================================== 
   Login und Passwortwechsel
   ========================================================================== */

#login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

#login-box {
    width: min(100%, 380px);
    padding: 22px;
    border: 1px solid #aebbc4;
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(22, 45, 61, .2);
}

#login-logo {
    width: min(100%, 260px);
    height: auto;
    display: block;
    margin: 0 auto 12px;
}

#login-main {
    margin-top: 18px;
    color: #183b54;
    font-size: 1.5rem;
    text-align: center;
}

#login-status {
    min-height: 32px;
    margin: 10px 0;
    text-align: center;
}

.login-form {
    padding: 14px;
}

.login-button {
    width: 100%;
    min-height: 44px;
    margin-top: 8px;
    border: 1px solid #17618e;
    border-radius: 3px;
    color: #fff;
    background: var(--navbar);
    font-weight: 700;
    cursor: pointer;
}

.login-button:hover,
.login-button:focus-visible {
    background: #176a9c;
}

.password-change-wrapper {
    height: auto;
}

#login-box.password-change-box {
    width: min(100%, 520px);
    padding: 28px;
}

.password-change-eyebrow {
    margin: 22px 0 5px;
    color: var(--navbar);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .11em;
    text-align: center;
    text-transform: uppercase;
}

.password-change-box h1 {
    margin: 0;
    color: #183b53;
    font-size: clamp(1.55rem, 5vw, 2rem);
    line-height: 1.15;
    text-align: center;
}

.password-change-introduction {
    margin: 14px 0;
    color: #4c616f;
    line-height: 1.55;
    text-align: center;
}

.password-change-account {
    margin: 18px 0 22px;
    padding: 11px 13px;
    overflow-wrap: anywhere;
    border: 1px solid #d5e0e7;
    border-radius: 4px;
    color: #36566b;
    background: #f4f8fa;
    font-size: .9rem;
    text-align: center;
}

.password-change-feedback {
    margin-bottom: 18px;
    padding: 10px 12px;
    border: 1px solid #d7e1e7;
    border-radius: 4px;
    background: #f8fafb;
}

.password-change-feedback .flashmsg {
    padding: 0;
}

.password-change-field + .password-change-field {
    margin-top: 4px;
}

.password-change-policy {
    margin: 3px 0 18px;
    padding: 13px 15px;
    border-left: 4px solid var(--navbar);
    color: #4b626f;
    background: #edf5f9;
    font-size: .84rem;
    line-height: 1.45;
}

.password-change-policy ul {
    margin: 7px 0 0;
    padding-left: 19px;
}

.password-change-submit,
.password-change-back,
.password-change-logout {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 16px;
    border-radius: 3px;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
}

.password-change-submit {
    width: 100%;
    border: 1px solid #17618e;
    color: #fff;
    background: var(--navbar);
    cursor: pointer;
}

.password-change-submit:hover,
.password-change-submit:focus-visible {
    background: #176a9c;
}

.password-change-secondary-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid #dbe3e8;
}

.password-change-secondary-actions form {
    margin: 0;
}

.password-change-back,
.password-change-logout {
    border: 1px solid #aebdc7;
    color: #36566b;
    background: #fff;
    cursor: pointer;
}

.password-change-back:hover,
.password-change-back:focus-visible,
.password-change-logout:hover,
.password-change-logout:focus-visible {
    background: #edf2f5;
}

/* ========================================================================== 
   Gemeinsamer Anwendungsrahmen
   ========================================================================== */

.admin-shell {
    min-height: 100vh;
    display: grid;
    grid-template:
        "header header" var(--header-height)
        "toolbar toolbar" var(--toolbar-height)
        "sidebar content" 1fr
        / var(--sidebar-wide) minmax(0, 1fr);
    transition: grid-template-columns 180ms ease;
}

.admin-header {
    grid-area: header;
    position: relative;
    z-index: 40;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 24px;
    color: #fff;
    background: var(--header);
}

.admin-logo {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150px;
    max-height: 58px;
    object-fit: contain;
    transform: translate(-50%, -50%);
}

.header-button,
.menu-button {
    border: 0;
    color: #fff;
    cursor: pointer;
}

.header-button {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #315878;
    box-shadow: 0 2px 4px rgba(0, 0, 0, .25);
}

.header-button:hover,
.header-button:focus-visible {
    background: #47708f;
}

.admin-clock {
    margin-left: auto;
    text-align: right;
    line-height: 1.05;
}

.admin-clock time {
    display: block;
    font-size: clamp(1.75rem, 3vw, 2.7rem);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.admin-clock span {
    display: block;
    margin-top: 4px;
    font-size: .95rem;
}

.admin-toolbar {
    grid-area: toolbar;
    z-index: 30;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 20px;
    padding-right: 18px;
    color: #fff;
    background: var(--navbar);
    box-shadow: 0 2px 4px rgba(0, 0, 0, .12);
}

.admin-toolbar h1 {
    overflow: hidden;
    margin: 0;
    font-size: 1.25rem;
    font-weight: 500;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.toolbar-context {
    color: rgba(255, 255, 255, .72);
}

.menu-button {
    width: var(--sidebar-compact);
    align-self: stretch;
    display: flex;
    flex: 0 0 var(--sidebar-compact);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    background: var(--navbar-dark);
    font-size: .72rem;
}

.menu-button:hover,
.menu-button:focus-visible {
    background: rgba(255, 255, 255, .22);
}

.admin-icon {
    width: 24px;
    height: 24px;
    flex: 0 0 24px;
}

.admin-sidebar {
    grid-area: sidebar;
    z-index: 35;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    color: var(--sidebar-text);
    background: var(--sidebar);
    border-right: 1px solid #cad4db;
    box-shadow: 2px 0 5px rgba(0, 0, 0, .08);
}

.admin-sidebar > nav {
    min-height: 0;
    flex: 1 1 auto;
    overflow-y: auto;
}

.sidebar-link {
    width: 100%;
    min-height: 64px;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 0 24px;
    border: 0;
    color: inherit;
    background: transparent;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
}

.sidebar-link:hover,
.sidebar-link:focus-visible,
.sidebar-link.is-active {
    background: var(--sidebar-active);
}

.sidebar-group {
    width: 100%;
}

.sidebar-group-toggle {
    text-align: left;
}

.submenu-chevron {
    width: 9px;
    height: 9px;
    flex: 0 0 9px;
    margin-left: auto;
    border-right: 2px solid #126296;
    border-bottom: 2px solid #126296;
    transform: rotate(45deg);
    transition: transform 160ms ease;
}

.sidebar-group.is-expanded .submenu-chevron {
    transform: rotate(225deg);
}

.sidebar-submenu[hidden] {
    display: none;
}

.sidebar-sublink {
    min-height: 52px;
    gap: 16px;
    padding-left: 56px;
    background: #f7f9fa;
    font-size: .92rem;
}

.sidebar-sublink .admin-icon {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
}

.sidebar-logout {
    margin-top: auto;
    border-top: 1px solid #d7dfe4;
}

.admin-content {
    grid-area: content;
    min-width: 0;
    padding: clamp(20px, 4vw, 48px);
    background: #eef1f3;
}

.admin-welcome {
    max-width: 850px;
    padding: clamp(24px, 4vw, 42px);
    border-radius: 4px;
    background: #fff;
    box-shadow: 0 3px 12px rgba(26, 48, 63, .12);
}

.admin-welcome h2 {
    margin: 4px 0 18px;
    color: #183b54;
    font-size: clamp(1.5rem, 3vw, 2.1rem);
}

.admin-welcome p {
    line-height: 1.6;
}

.eyebrow {
    margin: 0;
    color: var(--navbar);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.sidebar-scrim {
    display: none;
}

/* ========================================================================== 
   Signalverwaltung im Backoffice
   ========================================================================== */

.signal-admin-page {
    width: min(100%, 1280px);
    margin: 0 auto;
}

.signal-admin-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 22px;
}

.signal-admin-heading h2 {
    margin: 5px 0 8px;
    color: #173b54;
    font-size: clamp(1.65rem, 4vw, 2.35rem);
    line-height: 1.15;
}

.signal-admin-heading p:last-child {
    max-width: 760px;
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

.signal-admin-button {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 15px;
    border: 1px solid transparent;
    border-radius: 3px;
    font: inherit;
    font-weight: 750;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
}

.signal-admin-button.is-primary {
    border-color: #17618e;
    color: #fff;
    background: var(--navbar);
}

.signal-admin-button.is-primary:hover,
.signal-admin-button.is-primary:focus-visible {
    background: #176a9c;
}

.signal-admin-button.is-secondary {
    border-color: #9bafb9;
    color: #31566c;
    background: #fff;
}

.signal-admin-button.is-secondary:hover,
.signal-admin-button.is-secondary:focus-visible,
.signal-admin-button.is-quiet:hover,
.signal-admin-button.is-quiet:focus-visible {
    background: #edf3f6;
}

.signal-admin-button.is-quiet {
    border-color: transparent;
    color: #31566c;
    background: transparent;
}

.signal-admin-button.is-compact {
    min-height: 34px;
    padding: 5px 10px;
    font-size: .8rem;
}

.signal-admin-flash {
    margin-bottom: 18px;
    padding: 7px 10px;
    border: 1px solid #d5e0e7;
    border-radius: 4px;
    background: #fff;
}

.signal-admin-search,
.signal-admin-panel,
.signal-admin-form {
    margin-bottom: 22px;
    padding: clamp(20px, 3vw, 30px);
    border: 1px solid #d6e0e6;
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 3px 12px rgba(26, 48, 63, .08);
}

.signal-admin-search > label {
    display: block;
    margin-bottom: 7px;
    color: #1f4c66;
    font-size: .88rem;
    font-weight: 800;
}

.signal-admin-search > div {
    display: flex;
    align-items: center;
    gap: 9px;
}

.signal-admin-search input {
    width: min(100%, 680px);
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid #afbec7;
    border-radius: 3px;
    color: var(--text);
    background: #fff;
}

.signal-admin-search input:focus,
.signal-admin-field input:focus,
.signal-admin-field select:focus,
.signal-admin-field textarea:focus {
    border-color: var(--focus);
    outline: 3px solid rgba(3, 158, 230, .15);
}

.signal-admin-panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.signal-admin-panel-heading h3 {
    margin: 4px 0 0;
    color: #183b54;
    font-size: clamp(1.2rem, 3vw, 1.5rem);
}

.signal-admin-table-wrap {
    overflow-x: auto;
    border: 1px solid #dce5ea;
    border-radius: 4px;
}

.signal-admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .88rem;
}

.signal-admin-table th,
.signal-admin-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #e0e7eb;
    text-align: left;
    vertical-align: middle;
}

.signal-admin-table th {
    color: #527080;
    background: #f3f7f9;
    font-size: .74rem;
    letter-spacing: .04em;
    text-transform: uppercase;
    white-space: nowrap;
}

.signal-admin-table tbody tr:last-child td {
    border-bottom: 0;
}

.signal-admin-table tbody tr:hover {
    background: #f8fbfc;
}

.signal-admin-table td > strong,
.signal-admin-table td > small {
    display: block;
}

.signal-admin-table td > strong {
    color: #173f58;
}

.signal-admin-table td > small {
    max-width: 260px;
    margin-top: 3px;
    color: #677b87;
    line-height: 1.35;
}

.signal-admin-table-image {
    width: 74px;
    height: 58px;
    display: grid;
    overflow: hidden;
    place-items: center;
    border: 1px solid #d7e1e7;
    border-radius: 3px;
    background: #f7f9fa;
}

.signal-admin-table-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.signal-admin-table-image span {
    color: #72838d;
    font-size: .66rem;
    text-align: center;
}

.signal-admin-status {
    min-height: 27px;
    display: inline-flex;
    align-items: center;
    padding: 4px 9px;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 800;
    white-space: nowrap;
}

.signal-admin-status.is-active {
    color: #17613a;
    background: #dff4e7;
}

.signal-admin-status.is-inactive {
    color: #6a5361;
    background: #ece5e9;
}

.signal-admin-empty {
    margin: 0;
    padding: 16px;
    border: 1px dashed #bdcbd3;
    border-radius: 4px;
    color: #637782;
    background: #f8fafb;
}

.signal-admin-fieldset {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.signal-admin-fieldset + .signal-admin-fieldset {
    margin-top: 28px;
    padding-top: 25px;
    border-top: 1px solid #dde5ea;
}

.signal-admin-fieldset legend {
    padding: 0;
    color: #183b54;
    font-size: 1.05rem;
    font-weight: 850;
}

.signal-admin-help {
    margin: 7px 0 17px;
    color: #5d7280;
    font-size: .84rem;
    line-height: 1.5;
}

.signal-admin-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 15px 18px;
}

.signal-admin-field {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: #1f465e;
    font-size: .88rem;
    font-weight: 800;
}

.signal-admin-field.is-wide,
.signal-admin-field.is-full {
    grid-column: 1 / -1;
}

.signal-admin-field > span small {
    color: #6b7e89;
    font-weight: 500;
}

.signal-admin-field input,
.signal-admin-field select,
.signal-admin-field textarea {
    width: 100%;
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid #afbec7;
    border-radius: 3px;
    color: var(--text);
    background: #fff;
    font: inherit;
    font-weight: 400;
}

.signal-admin-field textarea {
    min-height: 145px;
    resize: vertical;
    line-height: 1.5;
}

.signal-admin-field input[type="file"] {
    padding: 7px;
    font-size: .82rem;
}

.signal-admin-check-grid {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin-top: 18px;
}

.signal-admin-check-grid label,
.signal-admin-image-active {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #31576c;
    font-size: .86rem;
    font-weight: 700;
    cursor: pointer;
}

.signal-admin-check-grid input,
.signal-admin-image-active input {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--navbar);
}

.signal-admin-form-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.signal-admin-version-note {
    margin: 0 0 18px;
    padding: 12px 14px;
    border-left: 4px solid #2785b8;
    border-radius: 3px;
    color: #486372;
    background: #edf7fb;
    font-size: .84rem;
    line-height: 1.5;
}

.signal-admin-image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.signal-admin-image-card {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 13px;
    padding: 16px;
    border: 1px solid #d4dfe5;
    border-radius: 4px;
    background: #f9fbfc;
}

.signal-admin-image-preview {
    min-height: 210px;
    display: grid;
    margin: 0;
    padding: 10px;
    overflow: hidden;
    place-items: center;
    border: 1px solid #dce4e9;
    border-radius: 4px;
    color: #9b3c35;
    background: #fff;
}

.signal-admin-image-preview img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 230px;
    display: block;
    object-fit: contain;
}

.signal-admin-image-meta {
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    color: #657984;
    font-size: .72rem;
}

.signal-admin-image-meta code {
    max-width: 75%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.signal-admin-image-card > .signal-admin-button {
    width: 100%;
    margin-top: auto;
}

/* ========================================================================== 
   Signaltrainer
   ========================================================================== */

.signal-trainer-page {
    width: min(100%, 1180px);
    margin: 0 auto;
}

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

.trainer-heading h2 {
    margin: 5px 0 8px;
    color: #173b54;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    line-height: 1.12;
}

.trainer-heading > div:first-child > p:last-child {
    max-width: 720px;
    margin: 0;
    color: var(--muted);
    line-height: 1.6;
}

.trainer-catalogue-fact {
    min-width: 190px;
    display: flex;
    flex-direction: column;
    padding: 15px 18px;
    border: 1px solid #cbd9e1;
    border-radius: 5px;
    color: #2c5269;
    background: rgba(255, 255, 255, .7);
}

.trainer-catalogue-fact strong {
    color: var(--navbar);
    font-size: 1.65rem;
    line-height: 1;
}

.trainer-catalogue-fact span {
    margin-top: 7px;
    font-size: .86rem;
}

.trainer-flash {
    margin-bottom: 18px;
    border: 1px solid #d5e0e7;
    border-radius: 4px;
    background: #fff;
}

.trainer-selection-source {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 5px 9px;
    margin-bottom: 18px;
    padding: 12px 14px;
    border: 1px solid #a9cddf;
    border-radius: 4px;
    color: #31566c;
    background: #edf7fb;
    font-size: .88rem;
}

.trainer-selection-source strong {
    color: #145f88;
}

.trainer-panel {
    margin-bottom: 24px;
    padding: clamp(22px, 4vw, 34px);
    border: 1px solid #d6e0e6;
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 3px 12px rgba(26, 48, 63, .08);
}

.trainer-panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.trainer-panel-heading h3 {
    margin: 4px 0 0;
    color: #183b54;
    font-size: clamp(1.22rem, 3vw, 1.55rem);
}

.trainer-status {
    display: inline-flex;
    align-items: center;
    min-height: 27px;
    padding: 4px 9px;
    border-radius: 999px;
    font-size: .76rem;
    font-weight: 800;
    white-space: nowrap;
}

.trainer-status-active {
    color: #0b608b;
    background: #dff2fb;
}

.trainer-status-completed {
    color: #17613a;
    background: #dff4e7;
}

.trainer-status-aborted {
    color: #7b4d0b;
    background: #f7ead4;
}

.trainer-progress {
    width: 100%;
    height: 13px;
    overflow: hidden;
    border: 0;
    border-radius: 999px;
    color: var(--navbar);
    background: #dce5ea;
    appearance: none;
}

.trainer-progress::-webkit-progress-bar {
    border-radius: 999px;
    background: #dce5ea;
}

.trainer-progress::-webkit-progress-value {
    border-radius: 999px;
    background: linear-gradient(90deg, #247caf, #039ee6);
}

.trainer-progress::-moz-progress-bar {
    border-radius: 999px;
    background: #247caf;
}

.trainer-progress-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin: 9px 0 0;
    color: var(--muted);
    font-size: .88rem;
}

.trainer-progress-meta strong {
    color: #183b54;
}

.trainer-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.trainer-actions form {
    margin: 0;
}

.trainer-button {
    min-height: 43px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 17px;
    border: 1px solid transparent;
    border-radius: 3px;
    font: inherit;
    font-weight: 750;
    text-decoration: none;
    cursor: pointer;
}

.trainer-button-primary {
    border-color: #17618e;
    color: #fff;
    background: var(--navbar);
}

.trainer-button-primary:hover,
.trainer-button-primary:focus-visible {
    background: #176a9c;
}

.trainer-button-secondary {
    border-color: #9bafb9;
    color: #31566c;
    background: #fff;
}

.trainer-button-secondary:hover,
.trainer-button-secondary:focus-visible {
    background: #edf3f6;
}

.trainer-button-accept {
    border-color: #68a584;
    color: #17613a;
    background: #edf8f2;
}

.trainer-button-accept:hover,
.trainer-button-accept:focus-visible {
    border-color: #3d8a62;
    background: #dff2e7;
}

.trainer-button-danger {
    border-color: #d1a5a0;
    color: #9f2f25;
    background: #fff;
}

.trainer-button-danger:hover,
.trainer-button-danger:focus-visible {
    background: #fff0ee;
}

.trainer-fieldset {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.trainer-fieldset + .trainer-fieldset {
    margin-top: 28px;
    padding-top: 25px;
    border-top: 1px solid #dde5ea;
}

.trainer-fieldset legend {
    padding: 0;
    color: #183b54;
    font-size: 1rem;
    font-weight: 800;
}

.trainer-field-help {
    margin: 6px 0 16px;
    color: var(--muted);
    font-size: .88rem;
    line-height: 1.5;
}

.trainer-mode-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 11px;
}

.trainer-mode-option {
    min-width: 0;
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    align-items: flex-start;
    gap: 11px;
    padding: 15px 16px;
    border: 1px solid #c8d6de;
    border-radius: 4px;
    color: #294a5f;
    background: #f8fafb;
    cursor: pointer;
}

.trainer-mode-option:hover {
    border-color: #6ca2bd;
    background: #f1f8fb;
}

.trainer-mode-option:has(input:checked) {
    border-color: #2785b8;
    background: #e8f4fa;
    box-shadow: inset 0 0 0 1px #2785b8;
}

.trainer-mode-option input {
    width: 18px;
    height: 18px;
    margin: 2px 0 0;
    accent-color: var(--navbar);
}

.trainer-mode-option > span {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.trainer-mode-option strong {
    color: #173f58;
    font-size: .95rem;
}

.trainer-mode-option small {
    color: #5b7180;
    font-size: .8rem;
    line-height: 1.45;
}

.trainer-preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 11px;
}

.trainer-preset-card {
    min-width: 0;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
    padding: 15px 16px;
    border: 1px solid #c8d6de;
    border-radius: 4px;
    color: #294a5f;
    background: #f8fafb;
    text-decoration: none;
}

.trainer-preset-card:hover,
.trainer-preset-card:focus-visible {
    border-color: #4f96bb;
    background: #eff7fb;
}

.trainer-preset-card.is-active {
    border-color: #2785b8;
    background: #e8f4fa;
    box-shadow: inset 0 0 0 1px #2785b8;
}

.trainer-preset-card strong {
    color: #173f58;
    font-size: 1rem;
}

.trainer-preset-card > span:not(.trainer-preset-badge) {
    color: #5b7180;
    font-size: .84rem;
    line-height: 1.45;
}

.trainer-preset-card small {
    margin-top: 3px;
    color: #126b9b;
    font-size: .76rem;
    font-weight: 800;
}

.trainer-preset-badge {
    padding: 3px 7px;
    border-radius: 999px;
    color: #fff;
    background: #247caf;
    font-size: .67rem;
    font-weight: 850;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.trainer-selection-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 12px;
    padding: 11px 13px;
    border: 1px solid #cbd8df;
    border-radius: 4px;
    background: #f2f7f9;
}

.trainer-select-all {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #31576c;
    font-size: .88rem;
    cursor: pointer;
}

.trainer-select-all input,
.trainer-tree-group summary input,
.trainer-tree-subgroup summary input,
.trainer-signal-option input {
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    margin: 0;
    accent-color: var(--navbar);
}

.trainer-selection-clear {
    padding: 5px 0;
    border: 0;
    color: #39677f;
    background: transparent;
    font: inherit;
    font-size: .8rem;
    font-weight: 750;
    text-decoration: underline;
    text-underline-offset: 3px;
    cursor: pointer;
}

.trainer-selection-clear:hover,
.trainer-selection-clear:focus-visible {
    color: #154f70;
}

.trainer-signal-tree {
    overflow: hidden;
    border: 1px solid #cbd8df;
    border-radius: 4px;
    background: #fff;
}

.trainer-tree-group + .trainer-tree-group {
    border-top: 1px solid #d5dfe5;
}

.trainer-tree-group > summary,
.trainer-tree-subgroup > summary {
    position: relative;
    display: grid;
    align-items: center;
    gap: 10px;
    color: #26495d;
    cursor: pointer;
    list-style: none;
}

.trainer-tree-group > summary {
    grid-template-columns: 17px 18px 50px minmax(0, 1fr) auto;
    min-height: 58px;
    padding: 10px 14px;
    background: #f5f8fa;
}

.trainer-tree-subgroup > summary {
    grid-template-columns: 17px 18px minmax(0, 1fr) auto;
    min-height: 52px;
    padding: 9px 13px;
    background: #fbfcfd;
}

.trainer-tree-group > summary::-webkit-details-marker,
.trainer-tree-subgroup > summary::-webkit-details-marker {
    display: none;
}

.trainer-tree-group > summary::before,
.trainer-tree-subgroup > summary::before {
    content: "›";
    color: #39718f;
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1;
    transform: rotate(0deg);
    transition: transform 150ms ease;
}

.trainer-tree-group[open] > summary::before,
.trainer-tree-subgroup[open] > summary::before {
    transform: rotate(90deg);
}

.trainer-tree-group > summary:hover,
.trainer-tree-group > summary:focus-visible,
.trainer-tree-subgroup > summary:hover,
.trainer-tree-subgroup > summary:focus-visible {
    background: #edf4f7;
}

.trainer-tree-code {
    color: #0d6898;
    font-size: .96rem;
    font-weight: 850;
}

.trainer-tree-heading-copy {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.trainer-tree-heading-copy strong {
    overflow: hidden;
    font-size: .88rem;
    text-overflow: ellipsis;
}

.trainer-tree-heading-copy small {
    color: #6a7d88;
    font-size: .71rem;
    line-height: 1.3;
}

.trainer-tree-count {
    min-width: 29px;
    padding: 3px 7px;
    border-radius: 999px;
    color: #426578;
    background: #e4edf2;
    font-size: .72rem;
    font-weight: 800;
    text-align: center;
}

.trainer-tree-group-body {
    padding: 8px 12px 12px 46px;
    border-top: 1px solid #dbe4e9;
}

.trainer-tree-subgroup {
    border: 1px solid #dce5ea;
    border-radius: 3px;
}

.trainer-tree-subgroup + .trainer-tree-subgroup {
    margin-top: 7px;
}

.trainer-tree-subgroup .trainer-tree-signal-list {
    padding: 8px;
    border-top: 1px solid #e0e7eb;
}

.trainer-tree-signal-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
}

.trainer-signal-option {
    min-width: 0;
    display: grid;
    grid-template-columns: 18px minmax(48px, auto) minmax(0, 1fr);
    align-items: center;
    gap: 9px;
    padding: 9px 10px;
    border: 1px solid #d5dfe5;
    border-radius: 3px;
    color: #2d5064;
    background: #fff;
    cursor: pointer;
}

.trainer-signal-option:hover {
    border-color: #8bb5ca;
    background: #f5fafc;
}

.trainer-signal-option:has(input:checked) {
    border-color: #6fa6c2;
    background: #edf7fb;
}

.trainer-signal-code {
    color: #0d6898;
    font-size: .84rem;
    font-weight: 850;
}

.trainer-signal-copy {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.trainer-signal-copy strong {
    overflow: hidden;
    font-size: .79rem;
    text-overflow: ellipsis;
}

.trainer-signal-copy small {
    color: #6c7f8a;
    font-size: .68rem;
}

.trainer-button:disabled {
    border-color: #aebdc5;
    color: #f5f7f8;
    background: #aebdc5;
    cursor: not-allowed;
}

.trainer-history-table-wrap {
    overflow-x: auto;
}

.trainer-history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}

.trainer-history-table th,
.trainer-history-table td {
    padding: 12px 14px;
    border-bottom: 1px solid #e0e7eb;
    text-align: left;
    white-space: nowrap;
}

.trainer-history-table th {
    color: #527080;
    background: #f3f7f9;
    font-size: .76rem;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.trainer-history-table tbody tr:last-child td {
    border-bottom: 0;
}

.trainer-history-action {
    min-height: 34px;
    padding: 5px 10px;
    font-size: .78rem;
    white-space: nowrap;
}

.trainer-session-heading {
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.trainer-session-heading h2 {
    margin: 3px 0 5px;
    font-size: clamp(1.45rem, 3vw, 2rem);
}

.trainer-session-controls {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 9px;
}

.trainer-mode-switch {
    display: inline-flex;
    overflow: hidden;
    border: 1px solid #b9c9d2;
    border-radius: 3px;
    background: #fff;
}

.trainer-mode-switch a {
    min-height: 39px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 11px;
    color: #315d76;
    font-size: .82rem;
    font-weight: 700;
    text-decoration: none;
}

.trainer-mode-switch a + a {
    border-left: 1px solid #b9c9d2;
}

.trainer-mode-switch a:hover,
.trainer-mode-switch a:focus-visible {
    background: #edf3f6;
}

.trainer-mode-switch a.is-active {
    color: #fff;
    background: var(--navbar);
}

.trainer-back-link {
    min-height: 39px;
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border: 1px solid #b9c9d2;
    border-radius: 3px;
    color: #315d76;
    background: #fff;
    font-size: .86rem;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.trainer-back-link:hover,
.trainer-back-link:focus-visible {
    background: #edf3f6;
}

.trainer-progress-panel {
    margin-bottom: 10px;
    padding: 9px 13px;
    border: 1px solid #d2dee5;
    border-radius: 4px;
    background: #fff;
}

.trainer-progress-panel .trainer-progress-meta {
    margin: 0 0 5px;
}

.trainer-question-card {
    margin-bottom: 12px;
    padding: clamp(12px, 2vw, 18px);
    border: 1px solid #d2dee5;
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 3px 12px rgba(26, 48, 63, .08);
}

.trainer-signal-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 10px;
}

.trainer-signal-meta span {
    padding: 5px 8px;
    border-radius: 3px;
    color: #476473;
    background: #edf3f6;
    font-size: .75rem;
    font-weight: 700;
}

.trainer-image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    align-items: stretch;
    gap: 10px;
}

.trainer-signal-image {
    min-width: 0;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 8px;
    border: 1px solid #dce4e9;
    border-radius: 4px;
    background: #f7f9fa;
}

.trainer-signal-image.is-night {
    border-color: #193a53;
    background: #102b3e;
}

.trainer-signal-image img {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: clamp(145px, 22vh, 195px);
    display: block;
    object-fit: contain;
}

.trainer-signal-image figcaption {
    margin-top: 6px;
    padding: 3px 6px;
    border-radius: 3px;
    color: #4e6876;
    background: rgba(255, 255, 255, .9);
    font-size: .68rem;
    font-weight: 700;
    text-align: center;
}

.trainer-answer-form {
    max-width: none;
    margin-bottom: 16px;
    padding: clamp(14px, 2.3vw, 20px);
}

.trainer-answer-form .trainer-panel-heading {
    margin-bottom: 7px;
}

.trainer-card-solution {
    max-width: none;
    margin-bottom: 16px;
    padding: clamp(14px, 2.3vw, 20px);
}

.trainer-card-solution .trainer-panel-heading {
    margin-bottom: 8px;
}

.trainer-card-reveal {
    display: flex;
    justify-content: center;
    margin: 0 0 16px;
}

.trainer-card-reveal .trainer-button {
    width: auto;
    max-width: 100%;
    min-width: 190px;
}

.trainer-card-prompt {
    margin: 0;
    color: #516b7a;
    font-size: .9rem;
    line-height: 1.5;
}

.trainer-card-solution {
    border-top: 5px solid #2785b8;
}

.trainer-card-solution-list {
    display: grid;
    gap: 9px;
    margin: 0 0 14px;
}

.trainer-card-solution-list > div {
    display: grid;
    grid-template-columns: minmax(140px, .32fr) minmax(0, 1fr);
    gap: 16px;
    padding: 12px 14px;
    border-left: 4px solid #2785b8;
    border-radius: 3px;
    background: #edf7fb;
}

.trainer-card-solution-list dt {
    color: #35576a;
    font-size: .82rem;
    font-weight: 800;
}

.trainer-card-solution-list dd {
    min-width: 0;
    margin: 0;
    color: #183f58;
    font-weight: 700;
    line-height: 1.45;
}

.trainer-card-actions {
    margin-top: 15px;
}

.trainer-answer-field {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin: 10px 0 4px;
    color: #1f465e;
    font-size: .9rem;
    font-weight: 800;
}

.trainer-answer-field small {
    color: #6a7d88;
    font-size: .74rem;
    font-weight: 500;
    text-align: right;
}

.trainer-input {
    width: 100%;
    min-height: 40px;
    padding: 7px 9px;
    border: 1px solid #afbec7;
    border-radius: 3px;
    color: var(--text);
    background: #fff;
    font: inherit;
}

.trainer-input:focus {
    border-color: var(--focus);
    outline: 3px solid rgba(3, 158, 230, .15);
}

.trainer-textarea {
    min-height: 72px;
    resize: vertical;
    line-height: 1.5;
}

.trainer-feedback {
    border-top-width: 5px;
}

.trainer-feedback.is-correct {
    border-top-color: #238653;
}

.trainer-feedback.has-errors {
    border-top-color: #cf7a1b;
}

.trainer-result-mark {
    width: 42px;
    height: 42px;
    display: grid;
    flex: 0 0 42px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: #238653;
    font-size: 1.4rem;
    font-weight: 900;
}

.trainer-feedback.has-errors .trainer-result-mark {
    background: #cf7a1b;
}

.trainer-answer-results {
    display: grid;
    gap: 10px;
    margin: 0;
}

.trainer-answer-results > div {
    display: grid;
    grid-template-columns: minmax(140px, .35fr) minmax(0, 1fr);
    gap: 16px;
    padding: 13px 15px;
    border-left: 4px solid #238653;
    border-radius: 3px;
    background: #edf8f2;
}

.trainer-answer-results > div.is-wrong {
    border-left-color: #cf6e2a;
    background: #fff4e9;
}

.trainer-answer-results dt {
    color: #35576a;
    font-size: .82rem;
    font-weight: 800;
}

.trainer-answer-results dd {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin: 0;
    color: #213d4e;
    line-height: 1.45;
}

.trainer-answer-results dd small {
    color: #9b3f1d;
    font-size: .84rem;
    font-weight: 700;
}

.trainer-answer-results > div.is-correct dd small {
    color: #356b50;
}

.trainer-answer-form .trainer-actions {
    margin-top: 15px;
}

.trainer-answer-empty {
    color: #7b6a58;
    font-style: italic;
}

.trainer-preserve-lines {
    white-space: pre-line;
}

.trainer-feedback-note {
    margin: 18px 0 0;
    padding: 12px 14px;
    border-left: 4px solid #cf7a1b;
    color: #6d4b25;
    background: #fff8ee;
    font-size: .86rem;
    line-height: 1.55;
}

.trainer-feedback-actions {
    align-items: stretch;
}

.trainer-feedback-actions form,
.trainer-feedback-actions button {
    min-height: 100%;
}

.trainer-abort-form {
    display: flex;
    justify-content: flex-end;
    margin: -8px 0 20px;
}

.trainer-text-button {
    padding: 6px 0;
    border: 0;
    color: #8f3e35;
    background: transparent;
    font: inherit;
    font-size: .83rem;
    text-decoration: underline;
    text-underline-offset: 3px;
    cursor: pointer;
}

.trainer-text-button:hover,
.trainer-text-button:focus-visible {
    color: #b42318;
}

/* ========================================================================== 
   Fehlerseiten
   ========================================================================== */

.error-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: #eef1f3;
}

.error-card {
    width: min(100%, 560px);
    padding: clamp(28px, 6vw, 48px);
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 8px 24px rgba(24, 59, 84, .16);
    text-align: center;
}

.error-code {
    margin: 0 0 6px;
    color: var(--navbar);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.error-card h1 {
    margin: 0 0 14px;
    color: #183b54;
}

.error-card p {
    color: var(--muted);
    line-height: 1.6;
}

.error-action {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 10px;
    padding: 9px 18px;
    border-radius: 3px;
    color: #fff;
    background: var(--navbar);
    font-weight: 700;
    text-decoration: none;
}

/* ========================================================================== 
   Kontomenü in der oberen Werkzeugleiste
   ========================================================================== */

.account-menu {
    position: relative;
    z-index: 70;
    flex: 0 0 auto;
    margin-left: auto;
}

.account-menu-toggle {
    min-height: 42px;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 250px;
    padding: 7px 11px;
    border: 1px solid rgba(255, 255, 255, .38);
    border-radius: 4px;
    color: #fff;
    background: rgba(0, 35, 66, .18);
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.account-menu-toggle:hover,
.account-menu-toggle:focus-visible,
.account-menu.is-open .account-menu-toggle {
    background: rgba(0, 35, 66, .34);
}

.account-menu-toggle > span:not(.account-menu-chevron) {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.account-menu-toggle .admin-icon {
    width: 22px;
    height: 22px;
    padding: 2px;
    border-radius: 50%;
    background: #fff;
}

.account-menu-chevron {
    width: 8px;
    height: 8px;
    flex: 0 0 8px;
    margin: 0 2px 4px 3px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
}

.account-menu.is-open .account-menu-chevron {
    margin-top: 5px;
    margin-bottom: 0;
    transform: rotate(225deg);
}

.account-menu-panel {
    position: absolute;
    top: calc(100% + 7px);
    right: 0;
    width: min(270px, calc(100vw - 24px));
    overflow: hidden;
    border: 1px solid #b8c7d0;
    border-radius: 5px;
    color: #23485f;
    background: #fff;
    box-shadow: 0 12px 30px rgba(0, 35, 66, .27);
}

.account-menu-panel[hidden] {
    display: none;
}

.account-menu-panel a,
.account-menu-panel button {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 14px;
    border: 0;
    color: inherit;
    background: #fff;
    font: inherit;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}

.account-menu-panel a:hover,
.account-menu-panel a:focus-visible,
.account-menu-panel button:hover,
.account-menu-panel button:focus-visible {
    background: #eaf2f7;
}

.account-menu-panel form {
    margin: 0;
    border-top: 1px solid #dbe4e9;
}

/* ========================================================================== 
   Allgemeine Karteikartenverwaltung und Lernsystem
   ========================================================================== */

.flashcard-page,
.profile-page {
    width: min(100%, 1320px);
    margin: 0 auto;
}

.flashcard-page.is-narrow,
.profile-page.is-narrow {
    width: min(100%, 980px);
}

.flashcard-page-heading,
.profile-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 22px;
    margin-bottom: 22px;
}

.flashcard-page-heading h2,
.profile-heading h2 {
    margin: 5px 0 8px;
    color: #173b54;
    font-size: clamp(1.65rem, 4vw, 2.35rem);
    line-height: 1.15;
}

.flashcard-page-heading p:last-child,
.profile-heading p:last-child {
    max-width: 780px;
    margin: 0;
    color: var(--muted);
    line-height: 1.55;
}

.flashcard-heading-actions,
.flashcard-form-actions,
.profile-form-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 9px;
}

.flashcard-button,
.profile-button {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 15px;
    border: 1px solid transparent;
    border-radius: 3px;
    font: inherit;
    font-weight: 750;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
}

.flashcard-button:disabled,
.profile-button:disabled {
    opacity: .52;
    cursor: not-allowed;
}

.flashcard-button.is-primary,
.profile-button.is-primary {
    border-color: #17618e;
    color: #fff;
    background: var(--navbar);
}

.flashcard-button.is-primary:hover:not(:disabled),
.flashcard-button.is-primary:focus-visible,
.profile-button.is-primary:hover:not(:disabled),
.profile-button.is-primary:focus-visible {
    background: #176a9c;
}

.flashcard-button.is-success {
    border-color: #24754a;
    color: #fff;
    background: #2d8759;
}

.flashcard-button.is-success:hover,
.flashcard-button.is-success:focus-visible {
    background: #226d46;
}

.flashcard-button.is-secondary,
.profile-button.is-secondary {
    border-color: #9bafb9;
    color: #31566c;
    background: #fff;
}

.flashcard-button.is-quiet,
.profile-button.is-quiet {
    border-color: transparent;
    color: #31566c;
    background: transparent;
}

.flashcard-button.is-secondary:hover,
.flashcard-button.is-secondary:focus-visible,
.flashcard-button.is-quiet:hover,
.flashcard-button.is-quiet:focus-visible,
.profile-button.is-secondary:hover,
.profile-button.is-secondary:focus-visible,
.profile-button.is-quiet:hover,
.profile-button.is-quiet:focus-visible {
    background: #eaf1f5;
}

.flashcard-button.is-compact,
.profile-button.is-compact {
    min-height: 34px;
    padding: 5px 10px;
    font-size: .8rem;
}

.flashcard-panel,
.profile-panel,
.profile-search {
    margin-bottom: 22px;
    padding: clamp(19px, 3vw, 30px);
    border: 1px solid #d4dfe5;
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 3px 12px rgba(26, 48, 63, .08);
}

.flashcard-panel-heading,
.profile-panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.flashcard-panel-heading h3,
.profile-panel-heading h3,
.flashcard-form h3 {
    margin: 4px 0 0;
    color: #183b54;
    font-size: clamp(1.18rem, 3vw, 1.5rem);
}

.flashcard-flash,
.profile-flash {
    margin-bottom: 18px;
    padding: 7px 10px;
    border: 1px solid #d5e0e7;
    border-radius: 4px;
    background: #fff;
}

.flashcard-flash .flashmsg,
.profile-flash .flashmsg {
    padding: 0;
}

.flashcard-form fieldset,
.profile-form fieldset {
    min-width: 0;
}

.flashcard-form legend {
    padding: 0 7px;
    color: #214f68;
    font-weight: 800;
}

.flashcard-field,
.profile-field {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: #244f68;
    font-size: .88rem;
    font-weight: 750;
}

.flashcard-field > span small,
.profile-field > span small {
    color: #738590;
    font-weight: 500;
}

.flashcard-field input,
.flashcard-field select,
.flashcard-field textarea,
.profile-field input,
.profile-field select,
.profile-search input {
    width: 100%;
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid #adbdc6;
    border-radius: 3px;
    color: var(--text);
    background: #fff;
    font: inherit;
}

.flashcard-field textarea,
.profile-field textarea {
    min-height: 130px;
    resize: vertical;
}

.flashcard-field input:focus,
.flashcard-field select:focus,
.flashcard-field textarea:focus,
.profile-field input:focus,
.profile-field select:focus,
.profile-search input:focus,
.flashcard-rich-editor:focus {
    border-color: var(--focus);
    outline: 3px solid rgba(3, 158, 230, .15);
}

.flashcard-form-actions,
.profile-form-actions {
    margin-top: 18px;
}

.flashcard-form-actions.is-sticky {
    position: sticky;
    bottom: 10px;
    z-index: 15;
    justify-content: center;
    padding: 12px;
    border: 1px solid #c6d6df;
    border-radius: 5px;
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 5px 20px rgba(25, 55, 74, .18);
}

.flashcard-two-column {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.flashcard-two-column > .flashcard-panel {
    margin-bottom: 22px;
}

.flashcard-set-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.flashcard-set-tile {
    min-height: 190px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    padding: 24px;
    border: 1px solid #d4e0e7;
    border-top: 5px solid var(--navbar);
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 4px 14px rgba(26, 48, 63, .09);
}

.flashcard-set-tile h3 {
    margin: 6px 0 15px;
    color: #173d55;
    overflow-wrap: anywhere;
}

.flashcard-set-tile p:last-child {
    margin: 0;
    color: var(--muted);
}

.flashcard-quota,
.flashcard-catalogue-summary {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 15px;
    margin-bottom: 20px;
    padding: 13px 17px;
    border-left: 4px solid var(--navbar);
    color: #365b70;
    background: #fff;
}

.flashcard-quota small {
    color: var(--muted);
}

.flashcard-empty {
    padding: clamp(28px, 5vw, 46px);
    border: 1px dashed #aebec7;
    border-radius: 5px;
    color: var(--muted);
    background: rgba(255, 255, 255, .7);
    text-align: center;
}

.flashcard-empty.is-compact {
    padding: 22px;
}

.flashcard-empty h3 {
    margin: 0 0 8px;
    color: #21465c;
}

.flashcard-muted,
.profile-help,
.profile-field > small {
    color: var(--muted);
    font-size: .86rem;
    line-height: 1.5;
}

.flashcard-table-wrap,
.profile-table-wrap {
    overflow-x: auto;
    border: 1px solid #dce5ea;
    border-radius: 4px;
}

.flashcard-table,
.profile-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .87rem;
}

.flashcard-table th,
.flashcard-table td,
.profile-table th,
.profile-table td {
    padding: 10px 12px;
    border-bottom: 1px solid #e0e7eb;
    text-align: left;
    vertical-align: middle;
}

.flashcard-table th,
.profile-table th {
    color: #527080;
    background: #f3f7f9;
    font-size: .74rem;
    letter-spacing: .03em;
    text-transform: uppercase;
    white-space: nowrap;
}

.flashcard-table th a,
.profile-table th a {
    color: inherit;
    text-decoration: none;
}

.flashcard-table tbody tr:last-child td,
.profile-table tbody tr:last-child td {
    border-bottom: 0;
}

.flashcard-table tbody tr:hover,
.profile-table tbody tr:hover {
    background: #f8fbfc;
}

.flashcard-table-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 5px;
}

.flashcard-table-actions form {
    margin: 0;
}

.flashcard-metadata-grid {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) minmax(130px, .35fr) minmax(280px, 1.5fr);
    gap: 15px;
}

.flashcard-editor-shell {
    padding-top: 20px;
}

.flashcard-editor-toolbar[hidden],
.flashcard-rich-editor[hidden],
.flashcard-editor-fallback[hidden] {
    display: none;
}

.flashcard-editor-toolbar {
    position: sticky;
    top: 8px;
    z-index: 12;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 9px;
    padding: 9px;
    border: 1px solid #b9c9d2;
    border-radius: 4px;
    background: #edf4f7;
    box-shadow: 0 2px 7px rgba(27, 55, 72, .09);
}

.flashcard-editor-toolgroup {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 4px;
    padding-right: 7px;
    border-right: 1px solid #c7d5dc;
}

.flashcard-editor-toolgroup:last-child {
    padding-right: 0;
    border-right: 0;
}

.flashcard-editor-toolbar button,
.flashcard-editor-upload-label {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 9px;
    border: 1px solid #9eb2bd;
    border-radius: 3px;
    color: #244e65;
    background: #fff;
    font: inherit;
    font-size: .78rem;
    font-weight: 700;
    cursor: pointer;
}

.flashcard-editor-toolbar button:hover,
.flashcard-editor-toolbar button:focus-visible,
.flashcard-editor-upload-label:hover,
.flashcard-editor-upload-label:focus-within {
    background: #dceaf1;
}

.flashcard-editor-upload-label input {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}

.flashcard-rich-editor,
.flashcard-rendered-content {
    min-height: 360px;
    padding: clamp(18px, 3vw, 30px);
    overflow: auto;
    border: 1px solid #aebec7;
    border-radius: 3px;
    color: #1f323e;
    background: #fff;
    line-height: 1.58;
}

.flashcard-rendered-content {
    min-height: 0;
}

.flashcard-rich-editor:empty::before {
    content: "Text eingeben oder Bilder einfügen …";
    color: #8a99a2;
    pointer-events: none;
}

.flashcard-rich-editor p,
.flashcard-rich-editor div,
.flashcard-rendered-content p,
.flashcard-rendered-content div {
    overflow-wrap: anywhere;
}

.flashcard-rich-editor .align-left,
.flashcard-rendered-content .align-left {
    text-align: left;
}

.flashcard-rich-editor .align-center,
.flashcard-rendered-content .align-center {
    text-align: center;
}

.flashcard-rich-editor .align-right,
.flashcard-rendered-content .align-right {
    text-align: right;
}

.flashcard-rich-editor ul,
.flashcard-rich-editor ol,
.flashcard-rendered-content ul,
.flashcard-rendered-content ol {
    margin: .7em 0;
    padding-left: 2em;
}

.flashcard-rich-editor .list-disc,
.flashcard-rendered-content .list-disc {
    list-style: disc;
}

.flashcard-rich-editor .list-decimal,
.flashcard-rendered-content .list-decimal {
    list-style: decimal;
}

.flashcard-rich-editor .list-parenthesis,
.flashcard-rendered-content .list-parenthesis {
    counter-reset: parenthesis-list;
    list-style: none;
}

.flashcard-rich-editor .list-parenthesis > li,
.flashcard-rendered-content .list-parenthesis > li {
    counter-increment: parenthesis-list;
}

.flashcard-rich-editor .list-parenthesis > li::before,
.flashcard-rendered-content .list-parenthesis > li::before {
    content: counter(parenthesis-list) ".) ";
    display: inline-block;
    min-width: 2.1em;
    margin-left: -2.1em;
    font-weight: 700;
}

.flashcard-rich-editor .list-arrow,
.flashcard-rendered-content .list-arrow {
    list-style: none;
}

.flashcard-rich-editor .list-arrow > li::before,
.flashcard-rendered-content .list-arrow > li::before {
    content: "➤";
    display: inline-block;
    width: 1.7em;
    margin-left: -1.7em;
    color: var(--navbar);
}

.flashcard-rich-editor .list-indent-1,
.flashcard-rendered-content .list-indent-1 {
    margin-left: 2rem;
}

.flashcard-rich-editor .list-indent-2,
.flashcard-rendered-content .list-indent-2 {
    margin-left: 4rem;
}

.flashcard-rich-editor .list-indent-3,
.flashcard-rendered-content .list-indent-3 {
    margin-left: 6rem;
}

.flashcard-rich-editor .list-indent-4,
.flashcard-rendered-content .list-indent-4 {
    margin-left: 8rem;
}

.flashcard-rich-editor .list-indent-5,
.flashcard-rendered-content .list-indent-5 {
    margin-left: 10rem;
}

.flashcard-rich-editor figure.editor-image,
.flashcard-rendered-content figure.editor-image {
    width: fit-content;
    max-width: 100%;
    margin-block: 16px;
    padding: 8px;
    border: 1px solid #d5e0e6;
    border-radius: 4px;
    background: #f7fafb;
}

.flashcard-rich-editor figure.editor-image.align-left,
.flashcard-rendered-content figure.editor-image.align-left {
    margin-right: auto;
    margin-left: 0;
}

.flashcard-rich-editor figure.editor-image.align-center,
.flashcard-rendered-content figure.editor-image.align-center {
    margin-right: auto;
    margin-left: auto;
}

.flashcard-rich-editor figure.editor-image.align-right,
.flashcard-rendered-content figure.editor-image.align-right {
    margin-right: 0;
    margin-left: auto;
}

.flashcard-rich-editor figure.editor-image.is-selected {
    outline: 4px solid rgba(3, 158, 230, .28);
}

.flashcard-rich-editor figure.editor-image img,
.flashcard-rendered-content figure.editor-image img {
    max-width: min(100%, 760px);
    max-height: 680px;
    display: block;
    object-fit: contain;
}

.flashcard-rich-editor figcaption,
.flashcard-rendered-content figcaption {
    margin-top: 5px;
    color: var(--muted);
    font-size: .8rem;
    text-align: center;
}

.flashcard-editor-status {
    min-height: 1.4em;
    margin: 9px 0 0;
    color: #24734b;
    font-size: .84rem;
}

.flashcard-editor-status.is-error {
    color: #b42318;
}

.flashcard-selection-bar {
    position: sticky;
    top: 8px;
    z-index: 11;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 13px 22px;
    margin-bottom: 14px;
    padding: 13px 16px;
    border: 1px solid #c4d4dc;
    border-radius: 4px;
    background: rgba(255, 255, 255, .97);
    box-shadow: 0 3px 12px rgba(26, 48, 63, .12);
}

.flashcard-selection-bar label {
    display: flex;
    align-items: center;
    gap: 9px;
    font-weight: 750;
}

.flashcard-selection-bar .flashcard-button {
    margin-left: auto;
}

.flashcard-selection-sets {
    display: grid;
    gap: 10px;
}

.flashcard-selection-set {
    overflow: hidden;
    border: 1px solid #cbd9e0;
    border-radius: 4px;
    background: #fff;
}

.flashcard-selection-set > summary {
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 62px;
    padding: 10px 15px;
    color: #214b63;
    background: #eef5f8;
    cursor: pointer;
}

.flashcard-selection-set > summary > span:nth-child(2),
.flashcard-selection-card label > span {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.flashcard-selection-set small,
.flashcard-selection-card small {
    color: var(--muted);
    font-size: .78rem;
    font-weight: 500;
}

.flashcard-selection-count {
    min-width: 34px;
    padding: 4px 8px;
    border-radius: 999px;
    color: #fff;
    background: var(--navbar);
    font-size: .78rem;
    text-align: center;
}

.flashcard-selection-card-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 1px;
    background: #dce5ea;
}

.flashcard-selection-card {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 13px;
    background: #fff;
}

.flashcard-selection-card label {
    min-width: 0;
    display: flex;
    align-items: flex-start;
    flex: 1 1 auto;
    gap: 9px;
    cursor: pointer;
}

.flashcard-selection-card label strong {
    overflow-wrap: anywhere;
}

.flashcard-selection-card > a {
    flex: 0 0 auto;
    color: var(--navbar-dark);
    font-size: .78rem;
}

.flashcard-active-session {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 22px;
    padding: clamp(22px, 4vw, 34px);
    border-radius: 5px;
    color: #fff;
    background: linear-gradient(125deg, #104d76, #2586b8);
    box-shadow: 0 6px 18px rgba(13, 64, 96, .2);
}

.flashcard-active-session .eyebrow {
    color: #bfe7fb;
}

.flashcard-active-session h3 {
    margin: 5px 0 12px;
    font-size: clamp(1.35rem, 3vw, 1.8rem);
}

.flashcard-active-session p:last-child {
    margin: 9px 0 0;
    color: #dceef7;
}

.flashcard-active-session progress,
.flashcard-learning-progress progress,
.profile-storage progress {
    width: min(100%, 620px);
    height: 13px;
    accent-color: #31a56c;
}

.flashcard-status {
    display: inline-flex;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: .74rem;
    font-weight: 800;
}

.flashcard-status.is-completed {
    color: #17663f;
    background: #dff3e8;
}

.flashcard-status.is-aborted {
    color: #7b5419;
    background: #f9edcf;
}

.flashcard-learning-page {
    width: min(100%, 1080px);
}

.flashcard-learning-progress {
    margin-bottom: 14px;
    padding: 14px 18px;
    border: 1px solid #cedbe2;
    border-radius: 4px;
    background: #fff;
}

.flashcard-learning-progress > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 7px;
    color: #466270;
    font-size: .86rem;
}

.flashcard-learning-progress progress {
    width: 100%;
}

.flashcard-learning-card {
    min-height: min(580px, calc(100vh - 320px));
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(22px, 5vw, 48px);
    border: 1px solid #ccd9e0;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 6px 20px rgba(26, 48, 63, .12);
}

.flashcard-learning-card.is-revealed {
    justify-content: flex-start;
}

.flashcard-learning-front {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 13px;
    color: #4c6877;
    text-align: center;
}

.flashcard-learning-front strong {
    max-width: 850px;
    color: #173d55;
    font-size: clamp(1.65rem, 5vw, 3rem);
    line-height: 1.18;
    overflow-wrap: anywhere;
}

.flashcard-learning-reveal {
    display: flex;
    justify-content: center;
    margin-top: 38px;
}

.flashcard-solution-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-bottom: 13px;
    color: #486675;
}

.flashcard-solution-meta strong {
    color: #173d55;
    font-size: 1.15rem;
}

.flashcard-learning-solution {
    width: 100%;
    flex: 1 1 auto;
    border-color: #d5e0e6;
    box-shadow: none;
}

.flashcard-learning-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.flashcard-learning-abort {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

/* ========================================================================== 
   Benutzerprofile und Benutzerliste
   ========================================================================== */

.profile-page {
    width: min(100%, 1180px);
}

.profile-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
}

.profile-field.is-full {
    grid-column: 1 / -1;
}

.profile-role {
    padding: 5px 10px;
    border-radius: 999px;
    color: #285a73;
    background: #e5f0f5;
    font-size: .76rem;
    font-weight: 800;
    text-transform: capitalize;
}

.profile-storage {
    display: grid;
    grid-template-columns: minmax(180px, .4fr) minmax(0, 1fr);
    align-items: center;
    gap: 20px;
}

.profile-storage h3 {
    margin: 4px 0 0;
    color: #183b54;
}

.profile-storage p {
    margin: 0 0 7px;
    color: var(--muted);
}

.profile-search > label {
    display: block;
    margin-bottom: 7px;
    color: #244f68;
    font-size: .88rem;
    font-weight: 800;
}

.profile-search > div {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.profile-search input {
    max-width: 680px;
    flex: 1 1 320px;
}

/* Desktop: Seitenleiste breit oder kompakt. */
@media (min-width: 1220px) {
    .admin-shell.is-compact {
        grid-template-columns: var(--sidebar-compact) minmax(0, 1fr);
    }

    .admin-shell.is-compact .sidebar-link span {
        display: none;
    }

    .admin-shell.is-compact .sidebar-link {
        justify-content: center;
        gap: 0;
        padding: 0;
    }
}

/* Tablet: kompakte Leiste; geöffnet als Drawer. */
@media (min-width: 870px) and (max-width: 1219px) {
    .admin-shell {
        grid-template:
            "header header" var(--header-height)
            "toolbar toolbar" var(--toolbar-height)
            "sidebar content" 1fr
            / var(--sidebar-compact) minmax(0, 1fr);
    }

    .admin-sidebar {
        position: fixed;
        top: calc(var(--header-height) + var(--toolbar-height));
        bottom: 0;
        left: 0;
        width: var(--sidebar-compact);
        transition: width 180ms ease;
    }

    .admin-sidebar .sidebar-link span {
        display: none;
    }

    .admin-sidebar .sidebar-link {
        justify-content: center;
        gap: 0;
        padding: 0;
    }

    .admin-shell.is-open .admin-sidebar {
        width: var(--sidebar-wide);
    }

    .admin-shell.is-open .sidebar-link span {
        display: inline;
    }

    .admin-shell.is-open .sidebar-link {
        justify-content: flex-start;
        gap: 20px;
        padding: 0 24px;
    }

    .admin-shell.is-open .sidebar-group-toggle .submenu-chevron {
        display: block;
    }

    .admin-shell.is-open .sidebar-sublink {
        gap: 16px;
        padding-left: 56px;
    }

    .admin-shell.is-open .sidebar-scrim {
        position: fixed;
        z-index: 34;
        inset: calc(var(--header-height) + var(--toolbar-height)) 0 0
            var(--sidebar-compact);
        display: block;
        border: 0;
        background: rgba(0, 0, 0, .48);
    }
}

/* Smartphone: Menü verborgen; geöffnet als Drawer. */
@media (max-width: 869px) {
    :root {
        --header-height: 74px;
        --toolbar-height: 56px;
    }

    .admin-shell {
        grid-template:
            "header" var(--header-height)
            "toolbar" var(--toolbar-height)
            "content" 1fr
            / minmax(0, 1fr);
    }

    .admin-header {
        padding: 0 14px;
    }

    .header-button {
        width: 46px;
        height: 46px;
    }

    .admin-logo {
        display: none;
    }

    .admin-clock time {
        font-size: 1.75rem;
    }

    .admin-clock span {
        font-size: .78rem;
    }

    .admin-toolbar {
        gap: 14px;
        padding-right: 12px;
    }

    .admin-toolbar h1 {
        font-size: 1.1rem;
    }

    .toolbar-context {
        display: none;
    }

    .admin-sidebar {
        position: fixed;
        z-index: 50;
        top: calc(var(--header-height) + var(--toolbar-height));
        bottom: 0;
        left: 0;
        width: min(82vw, 340px);
        transform: translateX(-105%);
        transition: transform 200ms ease;
    }

    .admin-shell.is-open .admin-sidebar {
        transform: translateX(0);
    }

    .admin-shell.is-open .sidebar-scrim {
        position: fixed;
        z-index: 45;
        inset: calc(var(--header-height) + var(--toolbar-height)) 0 0 0;
        display: block;
        border: 0;
        background: rgba(0, 0, 0, .55);
    }

    .admin-content {
        padding: 18px 14px;
    }

    .signal-admin-heading {
        align-items: stretch;
        flex-direction: column;
        gap: 15px;
    }

    .signal-admin-heading > .signal-admin-button {
        align-self: flex-start;
    }

    .signal-admin-search > div {
        align-items: stretch;
        flex-wrap: wrap;
    }

    .signal-admin-search input {
        min-width: min(100%, 360px);
        flex: 1 1 360px;
    }

    .trainer-heading {
        align-items: stretch;
        flex-direction: column;
        gap: 15px;
    }

    .trainer-catalogue-fact {
        min-width: 0;
    }

    .trainer-session-heading {
        align-items: flex-start;
    }

    .trainer-session-controls {
        justify-content: flex-start;
    }

    .trainer-back-link {
        align-self: flex-start;
    }

    .trainer-image-grid {
        grid-template-columns: repeat(auto-fit, minmax(125px, 1fr));
        gap: 8px;
    }

    .trainer-signal-image {
        min-height: 120px;
        padding: 6px;
    }

    .trainer-signal-image img {
        max-height: 155px;
    }

    .flashcard-page-heading,
    .profile-heading,
    .flashcard-active-session {
        align-items: stretch;
        flex-direction: column;
        gap: 15px;
    }

    .flashcard-page-heading .flashcard-heading-actions,
    .profile-heading > .profile-button,
    .flashcard-active-session .flashcard-heading-actions {
        align-self: flex-start;
    }

    .flashcard-metadata-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .flashcard-metadata-grid .is-topic {
        grid-column: 1 / -1;
    }

    .flashcard-two-column {
        grid-template-columns: minmax(0, 1fr);
        gap: 0;
    }

    .flashcard-rich-editor,
    .flashcard-rendered-content {
        min-height: 280px;
    }
}

@media (max-width: 520px) {
    #login-wrapper {
        padding: 12px;
    }

    #login-box.password-change-box {
        padding: 22px 18px;
    }

    .password-change-secondary-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .password-change-secondary-actions form,
    .password-change-back,
    .password-change-logout {
        width: 100%;
    }

    .signal-admin-search,
    .signal-admin-panel,
    .signal-admin-form {
        padding: 18px 14px;
    }

    .signal-admin-form-grid,
    .signal-admin-image-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .signal-admin-search > div,
    .signal-admin-form-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .signal-admin-heading > .signal-admin-button,
    .signal-admin-search .signal-admin-button,
    .signal-admin-form-actions .signal-admin-button {
        width: 100%;
    }

    .signal-admin-image-preview {
        min-height: 160px;
    }

    .signal-admin-image-preview img {
        max-height: 190px;
    }

    .trainer-panel,
    .trainer-question-card {
        padding: 19px 15px;
    }

    .trainer-start-form > .trainer-panel-heading {
        flex-direction: column;
    }

    .trainer-start-form .trainer-catalogue-fact {
        width: 100%;
    }

    .trainer-question-card,
    .trainer-answer-form {
        padding: 12px 10px;
    }

    .trainer-preset-grid,
    .trainer-tree-signal-list,
    .trainer-mode-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .trainer-image-grid {
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: 6px;
    }

    .trainer-selection-toolbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .trainer-tree-group > summary {
        grid-template-columns: 17px 18px 40px minmax(0, 1fr) auto;
        padding-inline: 10px;
    }

    .trainer-tree-group-body {
        padding: 7px;
    }

    .trainer-actions,
    .trainer-actions form,
    .trainer-button {
        width: 100%;
    }

    .trainer-progress-meta,
    .trainer-answer-field {
        align-items: flex-start;
        flex-direction: column;
        gap: 3px;
    }

    .trainer-answer-field small {
        text-align: left;
    }

    .trainer-answer-results > div {
        grid-template-columns: minmax(0, 1fr);
        gap: 6px;
    }

    .trainer-card-solution {
        padding: 12px 10px;
    }

    .trainer-card-solution-list > div {
        grid-template-columns: minmax(0, 1fr);
        gap: 5px;
    }

    .trainer-session-controls,
    .trainer-mode-switch {
        width: 100%;
    }

    .trainer-mode-switch a {
        flex: 1 1 50%;
    }

    .trainer-signal-image {
        min-height: 100px;
        padding: 5px;
    }

    .trainer-signal-image img {
        max-height: 125px;
    }

    .trainer-signal-image figcaption {
        margin-top: 4px;
        font-size: .62rem;
    }

    .admin-toolbar {
        gap: 8px;
        padding-right: 8px;
    }

    .admin-toolbar h1 {
        display: none;
    }

    .account-menu-toggle {
        max-width: calc(100vw - var(--sidebar-compact) - 18px);
        padding-inline: 9px;
    }

    .flashcard-heading-actions,
    .flashcard-form-actions,
    .profile-form-actions,
    .flashcard-page-heading .flashcard-heading-actions,
    .profile-heading > .profile-button,
    .flashcard-active-session .flashcard-heading-actions {
        width: 100%;
        align-items: stretch;
        flex-direction: column;
    }

    .flashcard-heading-actions .flashcard-button,
    .flashcard-form-actions .flashcard-button,
    .profile-form-actions .profile-button,
    .profile-heading > .profile-button,
    .flashcard-active-session .flashcard-button,
    .flashcard-active-session .flashcard-heading-actions form {
        width: 100%;
    }

    .flashcard-set-tile {
        min-height: 0;
        align-items: stretch;
        flex-direction: column;
    }

    .flashcard-metadata-grid,
    .profile-form-grid,
    .profile-storage {
        grid-template-columns: minmax(0, 1fr);
    }

    .flashcard-metadata-grid .is-topic,
    .profile-field.is-full {
        grid-column: auto;
    }

    .flashcard-panel,
    .profile-panel,
    .profile-search {
        padding: 17px 13px;
    }

    .flashcard-editor-toolbar {
        position: static;
    }

    .flashcard-editor-toolgroup {
        width: 100%;
        padding: 0 0 7px;
        border-right: 0;
        border-bottom: 1px solid #c7d5dc;
    }

    .flashcard-editor-toolgroup:last-child {
        padding-bottom: 0;
        border-bottom: 0;
    }

    .flashcard-rich-editor,
    .flashcard-rendered-content {
        min-height: 240px;
        padding: 14px;
    }

    .flashcard-selection-bar {
        position: static;
        align-items: flex-start;
        flex-direction: column;
    }

    .flashcard-selection-bar .flashcard-button {
        width: 100%;
        margin-left: 0;
    }

    .flashcard-selection-card-list {
        grid-template-columns: minmax(0, 1fr);
    }

    .flashcard-selection-card {
        align-items: flex-start;
    }

    .flashcard-learning-progress > div,
    .flashcard-solution-meta {
        align-items: flex-start;
        flex-direction: column;
    }

    .flashcard-learning-card {
        min-height: 420px;
        padding: 18px 13px;
    }

    .flashcard-learning-rating,
    .flashcard-learning-rating .flashcard-button {
        width: 100%;
    }

    .profile-search > div {
        align-items: stretch;
        flex-direction: column;
    }

    .profile-search input,
    .profile-search .profile-button {
        width: 100%;
        max-width: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .admin-shell,
    .admin-sidebar,
    .submenu-chevron,
    .trainer-tree-group > summary::before,
    .trainer-tree-subgroup > summary::before {
        transition: none;
    }
}