/* Shared dashboard palette, scoped to course pages and the native review dialog. */
html:has(.toefl-course-page) {
    --course-bg: #f8f7f4;
    --course-text: #1a1816;
    --course-muted: #5c5856;
    --course-surface: #ffffff;
    --course-soft: #f0efec;
    --course-border: #e5e4e1;
    --course-accent: #4a5d4a;
    --course-accent-hover: #3c4d3c;
    --course-link: #426042;
    --course-tint: #edf1e9;
    --course-success: #426042;
    --course-error: #a13732;
    --course-error-bg: #fbefed;
    --course-error-border: #dfb7b2;
    --course-warning: #765d34;
    --course-warning-bg: #f5f0e5;
    color-scheme: light !important;
}
html[data-theme="dark"]:has(.toefl-course-page) {
    --course-bg: #1a1816;
    --course-text: #e8e6e3;
    --course-muted: #b7afa4;
    --course-surface: #242220;
    --course-soft: #2d2a28;
    --course-border: #3a3633;
    --course-accent: #5c6f5c;
    --course-accent-hover: #687d68;
    --course-link: #a6c4a4;
    --course-tint: #2b352c;
    --course-success: #a6c4a4;
    --course-error: #f0b8b2;
    --course-error-bg: #3c2927;
    --course-error-border: #77524d;
    --course-warning: #d9c59f;
    --course-warning-bg: #302b23;
    color-scheme: dark !important;
}
body:has(.toefl-course-page) {
    background: var(--course-bg) !important;
    color: var(--course-text) !important;
}
.toefl-course-page, .toefl-course-page *,
.toefl-course-review-dialog, .toefl-course-review-dialog * {
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
}
.toefl-course-page, .toefl-course-review-dialog { line-height: 1.6; }
/* Keep the footer in the same theme as the lesson. */
body:has(.toefl-course-page) > footer {
    background: var(--course-surface) !important;
    border-color: var(--course-border) !important;
    box-shadow: none;
}
body:has(.toefl-course-page) > footer :is(.text-gray-900, .text-gray-800, .text-gray-700, .text-gray-600, .text-gray-500) {
    color: var(--course-muted) !important;
}
body:has(.toefl-course-page) > footer .border-gray-200 { border-color: var(--course-border); }

/* TOEFL 2026 course home and lesson player. */

.toefl-course-mastery { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; font-size: 12px; line-height: 1.6; }
.toefl-course-mastery > span { padding: 3px 8px; border: 1px solid var(--course-border); border-radius: 20px; background: var(--course-soft); color: var(--course-muted); }
.toefl-course-mastery > .is-earned { color: var(--course-success); background: var(--course-tint); border-color: var(--course-border); }
.toefl-course-practice-evidence { color: var(--course-success); font-weight: 600; }
.toefl-course-practice-row { scroll-margin-top: 100px; flex-wrap: wrap; }
.toefl-course-pairing a { margin-right: 20px; display: inline-block; margin-top: 10px; }
.toefl-course-onboarding form { display: flex; flex-wrap: wrap; align-items: end; gap: 16px; }
.toefl-course-onboarding label, .toefl-course-petra label { display: flex; flex-direction: column; gap: 5px; font-size: 14px; }
.toefl-course-onboarding input, .toefl-course-onboarding select,
.toefl-course-petra input, .toefl-course-petra textarea {
    background: var(--course-surface); color: var(--course-text); border: 1px solid var(--course-border);
    border-radius: 7px; padding: 9px 10px; font: inherit; min-width: 0;
}
.toefl-course-onboarding button, #toefl-course-review-queue button,
.toefl-course-review-dialog button, .toefl-course-petra button { cursor: pointer; }
.toefl-course-onboarding button:not(.toefl-course-continue), #toefl-course-review-queue button,
.toefl-course-review-dialog [data-close], .toefl-course-petra [data-close-petra], .toefl-course-petra [data-clear-excerpt] {
    border: 1px solid var(--course-border); border-radius: 7px; padding: 8px 12px; background: var(--course-surface); color: var(--course-text);
}
#toefl-course-review-queue { margin-top: 24px; }
#toefl-course-review-queue li { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin: 14px 0; }
#toefl-course-study-path li { margin: 12px 0; }
#toefl-course-study-path li span { display: block; color: var(--course-muted); font-size: 13px; }
.toefl-course-petra-toggle { position: fixed; right: 24px; bottom: 24px; z-index: 1100; border: 0; border-radius: 30px; padding: 14px 22px; background: var(--course-accent); color: #fff; font-weight: 700; box-shadow: 0 4px 20px #0003; }
.toefl-course-petra-drawer { position: fixed; right: 20px; bottom: 84px; z-index: 1100; width: 380px; max-height: calc(100dvh - 160px); overflow-y: auto; padding: 20px; border: 1px solid var(--course-border); border-radius: 14px; background: var(--course-surface); color: var(--course-text); box-shadow: 0 6px 35px #0003; }
.toefl-course-petra-drawer[hidden] { display: none; }
.toefl-course-petra-drawer header { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.toefl-course-petra-drawer h2 { font-size: 20px; margin: 0; }
.toefl-course-petra-drawer p { font-size: 14px; line-height: 1.6; }
.toefl-course-petra-messages { max-height: 30dvh; overflow-y: auto; margin: 14px 0; }
.toefl-course-petra-message { white-space: pre-wrap; overflow-wrap: anywhere; padding: 9px 0; border-bottom: 1px solid var(--course-border); }
.toefl-course-petra-drawer textarea { width: 100%; resize: vertical; box-sizing: border-box; }
.toefl-course-petra-drawer blockquote { border-left: 3px solid var(--course-accent); padding-left: 10px; margin: 10px 0; font-size: 13px; max-height: 110px; overflow-y: auto; }
.toefl-course-petra-drawer form > button { margin-top: 10px; }
.toefl-course-review-dialog { box-sizing: border-box; width: min(540px, calc(100vw - 32px)); max-height: 85dvh; overflow-y: auto; padding: 24px; border: 1px solid var(--course-border); border-radius: 14px; background: var(--course-surface); color: var(--course-text); }
.toefl-course-review-dialog::backdrop { background: #1a181699; }
.toefl-course-review-dialog fieldset { border: 0; padding: 0; margin-bottom: 20px; }
.toefl-course-review-dialog label { display: block; padding: 10px; margin: 6px 0; border: 1px solid var(--course-border); border-radius: 7px; }
.toefl-course-learning-error { padding: 12px; border: 1px solid var(--course-error-border); border-radius: 8px; color: var(--course-error); background: var(--course-error-bg); }
.toefl-course-page :focus-visible, .toefl-course-review-dialog :focus-visible { outline: 2px solid var(--course-link); outline-offset: 3px; }
@media (max-width: 600px) {
    .toefl-course-petra-toggle { right: 14px; bottom: max(14px, env(safe-area-inset-bottom)); }
    .toefl-course-petra-drawer { box-sizing: border-box; left: 10px; right: 10px; width: auto; bottom: 74px; max-height: calc(100dvh - 150px); }
    .toefl-course-onboarding form { display: grid; }
    #toefl-course-review-queue li { align-items: flex-start; }
}

.toefl-course-page {
    max-width: 1180px;
    margin: 0 auto;
    padding: 48px 30px 88px;
    color: var(--course-text);
}

.toefl-course-page a {
    color: var(--course-link);
    text-decoration: none;
}

.toefl-course-page a:hover {
    text-decoration: underline;
}

.toefl-course-loading,
.toefl-course-error {
    margin: 48px auto;
    max-width: 560px;
    padding: 28px;
    border: 1px solid var(--course-border);
    border-radius: 12px;
    background: var(--course-surface);
    text-align: center;
    font-size: 16px;
    color: var(--course-text);
}

.toefl-course-error h2 {
    margin: 0 0 8px;
    font-size: 20px;
    color: var(--course-text);
}

.toefl-course-preview-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    padding: 10px 14px;
    border: 1px solid var(--course-border);
    border-radius: 10px;
    background: var(--course-warning-bg);
    color: var(--course-warning);
    font-size: 14px;
    font-weight: 600;
}

.toefl-course-header h1 {
    margin: 0 0 8px;
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -1.5px;
    line-height: 1.2;
}

.toefl-course-header p {
    margin: 0 0 16px;
    max-width: 720px;
    color: var(--course-muted);
    font-size: 16px;
    line-height: 1.55;
}

.toefl-course-progress-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    margin: 20px 0 32px;
    padding: 18px 20px;
    border: 1px solid var(--course-border);
    border-radius: 14px;
    background: var(--course-tint);
}

.toefl-course-progress-meter {
    flex: 1 1 260px;
}

.toefl-course-progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--course-muted);
}

.toefl-course-progress-track {
    height: 8px;
    border-radius: 999px;
    background: var(--course-border);
    overflow: hidden;
}

.toefl-course-progress-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--course-accent);
    transition: width 200ms ease;
}

.toefl-course-continue {
    display: inline-block;
    padding: 11px 18px;
    border: 0;
    border-radius: 9px;
    min-height: 44px;
    text-align: center;
    background: var(--course-accent);
    color: #ffffff !important;
    font-size: 13px;
    font-weight: 600;
}

.toefl-course-continue:hover {
    background: var(--course-accent-hover);
    text-decoration: none !important;
}

.toefl-course-module {
    margin-bottom: 28px;
    border: 1px solid var(--course-border);
    border-radius: 14px;
    background: var(--course-surface);
    overflow: hidden;
}

.toefl-course-module-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--course-border);
    background: var(--course-soft);
}

.toefl-course-module-header h2 {
    margin: 0;
    font-size: 18px;
}

.toefl-course-module-meta {
    font-size: 13px;
    color: var(--course-muted);
}

.toefl-course-lesson-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.toefl-course-lesson-item {
    border-top: 1px solid var(--course-soft);
}

.toefl-course-lesson-item:first-child {
    border-top: none;
}

.toefl-course-lesson-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    color: inherit !important;
}

.toefl-course-lesson-link:hover {
    background: var(--course-soft);
    text-decoration: none !important;
}

.toefl-course-lesson-status {
    flex: 0 0 auto;
    width: 26px;
    height: 26px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--course-border);
    color: var(--course-muted);
    font-size: 12px;
    font-weight: 600;
}

.toefl-course-lesson-status.is-completed {
    border-color: var(--course-link);
    background: var(--course-accent);
    color: #ffffff;
}

.toefl-course-lesson-status.is-started {
    border-color: var(--course-link);
}

.toefl-course-lesson-status.is-started { background: var(--course-tint); color: var(--course-link); }

.toefl-course-lesson-body {
    flex: 1 1 auto;
    min-width: 0;
}

.toefl-course-lesson-title {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    color: var(--course-text);
}

.toefl-course-lesson-summary {
    display: block;
    margin: 3px 0 0;
    font-size: 13px;
    color: var(--course-muted);
    line-height: 1.45;
}

.toefl-course-lesson-side {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--course-muted);
}

.toefl-course-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.toefl-course-badge.preview {
    background: var(--course-tint);
    color: var(--course-success);
}

.toefl-course-badge.locked {
    background: var(--course-soft);
    color: var(--course-muted);
}

/* Lesson page */

.toefl-course-lesson-page .toefl-course-breadcrumb {
    margin-bottom: 14px;
    font-size: 14px;
    color: var(--course-muted);
}

.toefl-course-lesson-page {
    max-width: 1180px;
}

.toefl-course-lesson-page h1 {
    margin: 0 0 6px;
    font-size: 34px;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.25;
}

.toefl-course-lesson-page .toefl-course-lesson-meta {
    margin: 0 0 18px;
    font-size: 14px;
    color: var(--course-muted);
}

.toefl-course-objectives {
    margin: 0 0 18px;
    border-color: var(--course-border);
    background: var(--course-soft);
}

.toefl-course-content-notice {
    margin: 0 0 18px;
    padding: 14px 16px;
    border: 1px solid var(--course-border);
    border-radius: 12px;
    background: var(--course-warning-bg);
    color: var(--course-warning);
    font-size: 14px;
    line-height: 1.5;
}

.toefl-course-content-notice p {
    margin: 4px 0;
}

.toefl-course-content-notice a {
    color: var(--course-warning);
    font-weight: 600;
    text-decoration: underline;
}

.toefl-course-objectives ul,
.toefl-course-recap ul {
    margin: 0;
    padding-left: 20px;
    color: var(--course-text);
    font-size: 15px;
    line-height: 1.6;
}

.toefl-course-objectives li + li,
.toefl-course-recap li + li {
    margin-top: 6px;
}

.toefl-course-player-wrap {
    position: relative;
    isolation: isolate;
    border-radius: 14px;
    overflow: hidden;
    background: #1a1816;
}

.toefl-course-media-stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
}

.toefl-course-player-column {
    min-width: 0;
}

@media (min-width: 900px) {
    .toefl-course-media-stage.is-transcript-open {
        grid-template-columns: minmax(0, 1.7fr) minmax(320px, 1fr);
        align-items: start;
    }
}

.toefl-course-player-wrap video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000000;
}

.toefl-course-player-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
}

.toefl-course-speed {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--course-muted);
}

.toefl-course-speed select {
    padding: 6px 10px;
    border: 1px solid var(--course-border);
    border-radius: 8px;
    background: var(--course-surface);
    font-size: 14px;
    color: var(--course-text);
}

.toefl-course-toolbar-actions {
    margin-left: auto;
    display: inline-flex;
    gap: 10px;
}

.toefl-course-tool-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid var(--course-border);
    border-radius: 8px;
    background: var(--course-surface);
    color: var(--course-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}

.toefl-course-tool-button:hover {
    background: var(--course-soft);
}

.toefl-course-tool-button[aria-pressed="true"] {
    border-color: var(--course-link);
    color: var(--course-link);
    background: var(--course-tint);
}

.toefl-course-inline-check-overlay {
    position: absolute;
    inset: 0;
    z-index: 4;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-y: auto;
    background: rgba(26, 24, 22, 0.9);
}

.toefl-course-inline-check-overlay[hidden] {
    display: none;
}

.toefl-course-inline-check-card {
    width: min(620px, 100%);
    max-height: 100%;
    padding: 18px;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    background: var(--course-surface);
    box-shadow: 0 20px 45px rgba(26, 24, 22, 0.35);
}

.toefl-course-inline-check-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 12px;
}

.toefl-course-inline-check-heading h2 {
    margin: 0;
    color: var(--course-text);
    font-size: 18px;
}

.toefl-course-inline-check-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px solid var(--course-border);
    border-radius: 9px;
    background: var(--course-surface);
    color: var(--course-muted);
    cursor: pointer;
}

.toefl-course-inline-check-close svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
}

.toefl-course-inline-check-continue {
    width: 100%;
    margin-top: 12px;
    padding: 10px 16px;
    border: 1px solid var(--course-border);
    border-radius: 9px;
    background: var(--course-surface);
    color: var(--course-text);
    cursor: pointer;
    font-size: 14px;
    font-weight: 650;
}

.toefl-course-inline-check-continue:hover,
.toefl-course-inline-check-close:hover {
    background: var(--course-soft);
}

.toefl-course-lesson-columns {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    margin-top: 24px;
}

@media (min-width: 900px) {
    .toefl-course-lesson-columns.has-side {
        grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
    }
}

.toefl-course-panel {
    padding: 18px 20px;
    border: 1px solid var(--course-border);
    border-radius: 14px;
    background: var(--course-surface);
}

.toefl-course-panel h2 {
    margin: 0 0 12px;
    font-size: 17px;
}

.toefl-course-transcript-panel {
    display: flex;
    flex-direction: column;
    min-height: 320px;
    max-height: 470px;
    padding: 18px;
    border: 1px solid var(--course-border);
    border-radius: 14px;
    background: var(--course-surface);
    overflow: hidden;
}

.toefl-course-transcript-panel[hidden] {
    display: none;
}

.toefl-course-transcript-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.toefl-course-transcript-heading h2 {
    margin: 0;
    font-size: 18px;
}

.toefl-course-transcript-heading > span {
    color: var(--course-muted);
    font-size: 12px;
    white-space: nowrap;
}

.toefl-course-transcript {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    font-size: 15px;
    line-height: 1.65;
    color: var(--course-text);
    white-space: pre-wrap;
    scroll-behavior: smooth;
}

.toefl-course-transcript.has-synced-cues {
    display: grid;
    align-content: start;
    gap: 4px;
    white-space: normal;
}

.toefl-course-transcript-cue {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 10px;
    width: 100%;
    padding: 9px 10px;
    border: 0;
    border-radius: 9px;
    background: transparent;
    color: var(--course-text);
    text-align: left;
    cursor: pointer;
    font: inherit;
    line-height: 1.45;
}

.toefl-course-transcript-cue > span:first-child {
    color: var(--course-muted);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}

.toefl-course-transcript-cue:hover {
    background: var(--course-soft);
}

.toefl-course-transcript-cue.is-active {
    background: var(--course-tint);
    color: var(--course-link);
    box-shadow: inset 3px 0 0 var(--course-accent);
}

.toefl-course-transcript-cue.is-active > span:first-child {
    color: var(--course-link);
}

.toefl-course-chapter-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.toefl-course-chapter-list li {
    margin-bottom: 8px;
}

.toefl-course-chapter-list button {
    width: 100%;
    text-align: left;
    padding: 10px 12px;
    border: 1px solid var(--course-border);
    border-radius: 10px;
    background: var(--course-surface);
    font-size: 14px;
    color: var(--course-text);
    cursor: pointer;
}

.toefl-course-chapter-list button:hover {
    background: var(--course-soft);
}

.toefl-course-chapter-time {
    color: var(--course-muted);
    font-variant-numeric: tabular-nums;
    margin-right: 8px;
}

.toefl-course-chapter-practice {
    display: inline-block;
    margin: 5px 0 2px 12px;
    font-size: 12px;
    font-weight: 600;
}

.toefl-course-learning-loop {
    display: grid;
    gap: 20px;
    margin-top: 24px;
}

.toefl-course-step-label {
    display: block;
    margin-bottom: 4px;
    color: var(--course-link);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.toefl-course-section-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.toefl-course-section-heading > span {
    color: var(--course-muted);
    font-size: 13px;
    white-space: nowrap;
}

.toefl-course-section-heading p {
    margin: 4px 0 0;
    color: var(--course-muted);
    font-size: 13px;
    line-height: 1.45;
}

.toefl-course-check-list {
    display: grid;
    gap: 14px;
}

.toefl-course-check {
    padding: 16px;
    border: 1px solid var(--course-border);
    border-radius: 12px;
    background: var(--course-soft);
}

.toefl-course-check.is-inline {
    padding: 0;
    border: 0;
    background: transparent;
}

.toefl-course-check-cue {
    margin-bottom: 10px;
    color: var(--course-link);
    font-size: 12px;
    font-weight: 650;
}

.toefl-course-check.is-passed {
    border-color: var(--course-border);
    background: var(--course-tint);
}

.toefl-course-check fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}

.toefl-course-check legend {
    margin-bottom: 12px;
    color: var(--course-text);
    font-size: 15px;
    font-weight: 650;
    line-height: 1.45;
}

.toefl-course-check-options {
    display: grid;
    gap: 8px;
}

.toefl-course-check-options label {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    padding: 10px 12px;
    border: 1px solid var(--course-border);
    border-radius: 9px;
    background: var(--course-surface);
    color: var(--course-text);
    cursor: pointer;
    font-size: 14px;
    line-height: 1.45;
}

.toefl-course-check-options label:hover {
    border-color: var(--course-link);
}

.toefl-course-check-options label.is-correct {
    border-color: var(--course-link);
    background: var(--course-tint);
}

.toefl-course-check-options label.is-incorrect {
    border-color: var(--course-error-border);
    background: var(--course-error-bg);
}

.toefl-course-check-options input {
    margin-top: 3px;
}

.toefl-course-check-submit {
    margin-top: 12px;
    padding: 9px 15px;
    border: 0;
    border-radius: 9px;
    background: var(--course-accent);
    color: #ffffff;
    cursor: pointer;
    font-size: 14px;
    font-weight: 650;
}

.toefl-course-check-submit:disabled {
    cursor: default;
    opacity: 0.65;
}

.toefl-course-check-feedback {
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 9px;
    font-size: 14px;
    line-height: 1.45;
}

.toefl-course-check-feedback.is-correct {
    background: var(--course-tint);
    color: var(--course-success);
}

.toefl-course-check-feedback.is-incorrect {
    background: var(--course-error-bg);
    color: var(--course-error);
}

.toefl-course-practice {
    border-color: var(--course-border);
    background: var(--course-tint);
}

.toefl-course-practice-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.toefl-course-practice-row p {
    margin: 5px 0 0;
    color: var(--course-muted);
    font-size: 14px;
    line-height: 1.45;
}

.toefl-course-recap {
    border-color: var(--course-border);
    background: var(--course-soft);
}

.toefl-course-lesson-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 28px;
}

.toefl-course-lesson-nav a {
    flex: 0 1 48%;
    padding: 14px 16px;
    border: 1px solid var(--course-border);
    border-radius: 12px;
    background: var(--course-surface);
    color: var(--course-text) !important;
}

.toefl-course-lesson-nav a:hover {
    background: var(--course-soft);
    text-decoration: none !important;
}

.toefl-course-lesson-nav .nav-label {
    display: block;
    font-size: 12px;
    color: var(--course-muted);
    margin-bottom: 4px;
}

.toefl-course-lesson-nav .nav-next {
    margin-left: auto;
    text-align: right;
}

.toefl-course-completed-note {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    padding: 8px 14px;
    border-radius: 10px;
    background: var(--course-tint);
    color: var(--course-success);
    font-size: 14px;
    font-weight: 600;
}

@media (max-width: 640px) {
    .toefl-course-page {
        padding: 28px 18px 88px;
    }

    .toefl-course-section-heading,
    .toefl-course-practice-row {
        align-items: stretch;
        flex-direction: column;
    }

    .toefl-course-section-heading > span {
        white-space: normal;
    }

    .toefl-course-practice-row .toefl-course-continue {
        text-align: center;
    }

    .toefl-course-inline-check-overlay {
        position: fixed;
        z-index: 1000;
        align-items: center;
        padding: 14px;
    }

    .toefl-course-inline-check-card {
        max-height: min(86vh, 720px);
        padding: 14px;
    }

    .toefl-course-transcript-panel {
        min-height: 280px;
        max-height: 380px;
    }
}

/* Native hidden must win over component layout display declarations. */
.toefl-course-completed-note[hidden], .toefl-course-petra [hidden] { display: none !important; }

/* Catalog first; planning and recall sit alongside it on larger screens. */
.toefl-course-eyebrow {
    display: block;
    margin-bottom: 12px;
    color: var(--course-link);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.toefl-course-header { margin-bottom: 26px; }
.toefl-course-preview-banner { font-size: 12px; font-weight: 500; margin-bottom: 28px; }
.toefl-course-home-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 26px;
    align-items: start;
}
.toefl-course-curriculum, .toefl-course-study-sidebar { min-width: 0; }
.toefl-course-study-sidebar { display: grid; gap: 20px; }
.toefl-course-study-sidebar .toefl-course-panel { padding: 22px; }
.toefl-course-study-sidebar .toefl-course-panel h2 { font-size: 16px; line-height: 1.4; }
.toefl-course-panel > p, .toefl-course-pairing p { color: var(--course-muted); font-size: 13px; margin: 0 0 16px; }
.toefl-course-panel > p:last-child { margin-bottom: 0; }
.toefl-course-study-sidebar :is(ol, ul) { margin: 16px 0; padding: 0; list-style: none; }
.toefl-course-study-sidebar #toefl-course-review-queue { margin: 0; }
#toefl-course-study-path li { padding: 12px 0; margin: 0; border-bottom: 1px solid var(--course-border); }
#toefl-course-study-path a { font-size: 13px; font-weight: 600; }
#toefl-course-study-path li span { margin-top: 5px; font-size: 12px; }
#toefl-course-review-queue li { font-size: 13px; }
.toefl-course-onboarding form { display: grid; gap: 14px; }
.toefl-course-onboarding label, .toefl-course-petra label { font-size: 12px; font-weight: 600; }
.toefl-course-onboarding :is(input, select) { width: 100%; min-height: 44px; font-weight: 400; font-size: 13px; }
.toefl-course-onboarding form > [role="status"]:empty { display: none; }
.toefl-course-onboarding button, #toefl-course-review-queue button { min-height: 44px; font-size: 12px; }
.toefl-course-module { margin-bottom: 22px; }
.toefl-course-module-header { padding: 20px 22px; background: var(--course-surface); }
.toefl-course-module-header h2 { font-size: 17px; font-weight: 700; }
.toefl-course-module-meta { font-size: 11px; }
.toefl-course-lesson-link { padding: 20px 22px; align-items: flex-start; }
.toefl-course-lesson-status { width: 28px; height: 28px; margin-top: 1px; }
.toefl-course-lesson-side { font-size: 12px; padding-top: 3px; flex-direction: column; align-items: flex-end; }
.toefl-course-mastery { gap: 10px; margin: 9px 0 0; font-size: 11px; }
.toefl-course-mastery > span { padding: 0; border: 0; background: transparent; }
.toefl-course-mastery > .is-earned { background: transparent; }
#toefl-course-mastery { margin: -6px 0 22px; }
#toefl-course-mastery .toefl-course-mastery { gap: 8px; }
#toefl-course-mastery .toefl-course-mastery > span { border: 1px solid var(--course-border); padding: 3px 10px; background: var(--course-surface); }
#toefl-course-mastery .toefl-course-mastery > .is-earned { background: var(--course-tint); }
.toefl-course-panel { padding: 24px; }
.toefl-course-panel h2 { font-weight: 700; }
.toefl-course-tool-button, .toefl-course-speed select, .toefl-course-inline-check-close { min-height: 44px; }
.toefl-course-tool-button, .toefl-course-speed, .toefl-course-speed select { font-size: 12px; }
.toefl-course-inline-check-close { min-width: 44px; }
.toefl-course-check-options input, .toefl-course-review-dialog input { accent-color: var(--course-link); }
.toefl-course-check-options label:has(input:checked) { border-color: var(--course-link); }
.toefl-course-petra-toggle { font-size: 13px; cursor: pointer; }
.toefl-course-petra-toggle:hover { background: var(--course-accent-hover); }
.toefl-course-petra-drawer { width: 380px; padding: 24px; }
.toefl-course-petra-drawer p { font-size: 13px; }
.toefl-course-petra-message { border: 0; padding: 12px; margin-bottom: 10px; border-radius: 10px; background: var(--course-soft); }
.toefl-course-petra-message strong { display: block; color: var(--course-link); font-size: 11px; margin-bottom: 5px; }
.toefl-course-review-dialog [data-close] { float: right; min-height: 44px; }
.toefl-course-review-dialog h2 { margin: 6px 0 22px; font-size: 20px; }
.toefl-course-review-dialog p, .toefl-course-review-dialog fieldset { font-size: 14px; }
@media (max-width: 960px) {
    .toefl-course-home-layout { grid-template-columns: minmax(0, 1fr); }
    .toefl-course-study-sidebar { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
}
@media (max-width: 640px) {
    .toefl-course-header h1 { font-size: 32px; letter-spacing: -1px; }
    .toefl-course-lesson-page h1 { font-size: 28px; letter-spacing: -.7px; }
    .toefl-course-header p { font-size: 14px; }
    .toefl-course-study-sidebar { grid-template-columns: minmax(0, 1fr); }
    .toefl-course-panel, .toefl-course-study-sidebar .toefl-course-panel { padding: 20px; }
    .toefl-course-module-header, .toefl-course-lesson-link { padding: 18px 16px; }
    .toefl-course-lesson-link { gap: 10px; }
    .toefl-course-lesson-title { font-size: 14px; }
    .toefl-course-lesson-summary { font-size: 12px; }
    .toefl-course-progress-card { gap: 16px; padding: 20px; }
    .toefl-course-progress-card .toefl-course-continue { width: 100%; }
    .toefl-course-progress-label { font-size: 12px; }
    .toefl-course-toolbar-actions { margin-left: 0; flex-wrap: wrap; }
    .toefl-course-petra-drawer { width: auto; padding: 20px; }
    .toefl-course-review-dialog h2 { max-width: 65%; }
}

.toefl-course-transcript-heading h2,
.toefl-course-petra-drawer h2,
.toefl-course-review-dialog h2 { font-weight: 700; }

/* Returning to a watched lesson keeps the remaining checks easy to find. */
.toefl-course-check-return {
    display: flex; align-items: center; justify-content: space-between; gap: 18px;
    margin: 0 0 22px; padding: 20px; border: 1px solid var(--course-border);
    border-radius: 14px; background: var(--course-tint); font-size: 14px;
}
.toefl-course-check-return p { margin: 5px 0 0; color: var(--course-muted); font-size: 13px; }
.toefl-course-return-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.toefl-course-card-return { padding: 0 22px 20px 64px; font-size: 12px; color: var(--course-muted); }
.toefl-course-card-return .toefl-course-return-actions { margin-top: 10px; }
.toefl-course-return-dialog { width: min(600px, calc(100vw - 32px)); }
.toefl-course-return-dialog header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.toefl-course-return-dialog h2 { max-width: none; margin: 0; }
.toefl-course-return-dialog header button { flex-shrink: 0; }
.toefl-course-return-dialog > .toefl-course-return-actions { margin-top: 16px; }
.toefl-course-check-return[hidden], .toefl-course-return-actions [hidden] { display: none !important; }
@media (max-width: 640px) {
    .toefl-course-check-return { align-items: stretch; flex-direction: column; }
    .toefl-course-card-return { padding: 0 16px 18px; }
    .toefl-course-return-dialog { padding: 18px; }
    .toefl-course-return-dialog header { gap: 10px; }
    .toefl-course-return-dialog h2 { font-size: 18px; }
    .toefl-course-return-dialog .toefl-course-check { padding: 12px; }
}