.nev-player-page {
    --nev-primary: #1268f3;
    --nev-primary-dark: #0d4fc2;
    --nev-primary-soft: #eef4ff;
    --nev-cyan: #05b9d1;
    --nev-success: #14b86b;
    --nev-warning: #f3a600;
    --nev-danger: #f04444;
    --nev-ink: #0c1b42;
    --nev-text: #263657;
    --nev-muted: #66738e;
    --nev-line: #dfe6f0;
    --nev-soft: #f7f9fc;
    --nev-card: #ffffff;
    --nev-shadow: 0 8px 26px rgba(31, 54, 96, 0.055);

    min-height: 100vh;
    padding: 1.25rem 0 2rem;
    color: var(--nev-ink);
    background:
        radial-gradient(circle at 12% 0%, rgba(18, 104, 243, 0.045), transparent 28rem),
        linear-gradient(180deg, #fbfdff 0%, #f8faff 100%);
}

.nev-player-page *,
.nev-player-page *::before,
.nev-player-page *::after {
    box-sizing: border-box;
}

.nev-player-shell {
    width: min(1500px, calc(100% - 2.5rem));
    margin: 0 auto;
}

.nev-player-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.9rem;
}

.nev-player-nav {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 0.55rem;
    overflow-x: auto;
    color: #8491a6;
    font-size: 0.7rem;
    font-weight: 750;
    scrollbar-width: none;
    white-space: nowrap;
}

.nev-player-nav::-webkit-scrollbar {
    display: none;
}

.nev-player-nav a {
    color: var(--nev-primary);
    text-decoration: none;
}

.nev-player-nav a:hover,
.nev-player-nav a:focus-visible {
    color: var(--nev-primary-dark);
    text-decoration: underline;
}

.nev-player-nav__separator {
    color: #a7b1c1;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 700;
    line-height: 1;
}

.nev-player-nav__current {
    max-width: 22rem;
    overflow: hidden;
    color: #66748a;
    text-overflow: ellipsis;
}

.nev-all-categories-button {
    display: inline-flex;
    min-height: 38px;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    padding: 0.52rem 0.8rem;
    border: 1px solid #d7e1f0;
    border-radius: 0.7rem;
    background: #ffffff;
    color: var(--nev-primary);
    font-size: 0.71rem;
    font-weight: 850;
    text-decoration: none;
    box-shadow: 0 5px 14px rgba(31, 54, 96, 0.04);
    transition:
        border-color 0.18s ease,
        background 0.18s ease,
        color 0.18s ease,
        transform 0.18s ease;
}

.nev-all-categories-button:hover,
.nev-all-categories-button:focus-visible {
    border-color: #a9c0ed;
    background: var(--nev-primary-soft);
    color: var(--nev-primary-dark);
    transform: translateY(-1px);
}

.nev-overview-grid,
.nev-learning-grid {
    display: grid;
    grid-template-columns: minmax(0, 2.12fr) minmax(320px, 0.95fr);
    gap: 1rem;
}

.nev-overview-grid {
    margin-bottom: 1rem;
}

.nev-lesson-card,
.nev-progress-card,
.nev-practice-card,
.nev-sidebar-card,
.nev-full-transcript-card,
.nev-related-section {
    border: 1px solid var(--nev-line);
    border-radius: 1rem;
    background: var(--nev-card);
    box-shadow: var(--nev-shadow);
}

.nev-lesson-card {
    overflow: hidden;
    display: grid;
    min-height: 198px;
    grid-template-columns: 37.5% minmax(0, 1fr);
}

.nev-lesson-card__image {
    min-width: 0;
    min-height: 198px;
    overflow: hidden;
    background: #0a285b;
}

.nev-lesson-card__image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.nev-lesson-card__content {
    display: flex;
    min-width: 0;
    flex-direction: column;
    justify-content: center;
    padding: 1.25rem 1.55rem 1.15rem;
}

.nev-pill {
    align-self: flex-start;
    padding: 0.27rem 0.57rem;
    border-radius: 999px;
    background: var(--nev-primary);
    color: #fff;
    font-size: 0.62rem;
    font-weight: 900;
    letter-spacing: 0.035em;
    line-height: 1;
    text-transform: uppercase;
}

.nev-lesson-card h1 {
    display: flex;
    align-items: center;
    gap: 0.68rem;
    margin: 0.62rem 0 0.45rem;
    color: var(--nev-ink);
    font-size: clamp(2rem, 3vw, 2.7rem);
    font-weight: 900;
    line-height: 1.03;
    letter-spacing: -0.035em;
}

.nev-lesson-card h1 i {
    color: #ffb600;
    font-size: 1.35rem;
}

.nev-lesson-card__content > p {
    max-width: 650px;
    margin: 0;
    color: var(--nev-text);
    font-size: 0.86rem;
    line-height: 1.65;
}

.nev-lesson-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem 1.45rem;
    margin-top: 1.1rem;
}

.nev-lesson-meta__item {
    display: inline-grid;
    grid-template-columns: 28px auto;
    align-items: center;
    gap: 0.5rem;
    min-width: 90px;
}

.nev-lesson-meta__item > i {
    color: var(--nev-primary);
    font-size: 1.15rem;
}

.nev-lesson-meta__item:nth-child(1) > i {
    color: var(--nev-success);
}

.nev-lesson-meta__item:nth-child(3) > i {
    color: #7c3aed;
}

.nev-lesson-meta__item:nth-child(4) > i {
    color: #ff8a00;
}

.nev-lesson-meta__item > span {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 0.08rem;
}

.nev-lesson-meta__item small {
    color: var(--nev-text);
    font-size: 0.63rem;
    line-height: 1.15;
}

.nev-lesson-meta__item strong {
    color: var(--nev-ink);
    font-size: 0.72rem;
    font-weight: 850;
    line-height: 1.15;
}

.nev-progress-card {
    min-height: 198px;
    padding: 1.15rem 1.3rem;
}

.nev-progress-card > h2 {
    margin: 0 0 0.78rem;
    color: var(--nev-ink);
    font-size: 1.03rem;
    font-weight: 900;
}

.nev-progress-card__body {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    align-items: center;
    gap: 1rem;
}

.nev-progress-ring {
    --progress: 0;
    position: relative;
    display: grid;
    width: 82px;
    height: 82px;
    place-items: center;
    border-radius: 50%;
    background:
        radial-gradient(circle closest-side, #fff 74%, transparent 75% 100%),
        conic-gradient(var(--nev-primary) calc(var(--progress) * 1%), #e5eaf2 0);
}

.nev-progress-ring span {
    color: var(--nev-ink);
    font-size: 1.05rem;
    font-weight: 900;
}

.nev-progress-card__details {
    min-width: 0;
}

.nev-progress-card__details > strong {
    display: block;
    color: var(--nev-text);
    font-size: 0.73rem;
    font-weight: 750;
}

.nev-progress-line {
    height: 8px;
    margin: 0.95rem 0 0.8rem;
    border-radius: 999px;
    background: #e5eaf2;
}

.nev-progress-line .progress-bar {
    border-radius: 999px;
    background: linear-gradient(90deg, var(--nev-primary), var(--nev-cyan), var(--nev-success));
}

.nev-text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--nev-primary);
    font-size: 0.72rem;
    font-weight: 850;
    text-decoration: none;
}

.nev-learning-grid {
    align-items: start;
}

.nev-practice-card {
    min-width: 0;
    padding: 0.95rem 1.05rem 1rem;
}

.nev-complete-box {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.85rem;
    padding: 0.9rem;
    border: 1px solid #a8e1bd;
    border-radius: 0.82rem;
    background: #f0fbf4;
}

.nev-complete-box__icon {
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    border-radius: 0.78rem;
    background: #dcf7e6;
    color: var(--nev-success);
}

.nev-complete-box span {
    color: var(--nev-success);
    font-size: 0.65rem;
    font-weight: 900;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.nev-complete-box h2 {
    margin: 0.15rem 0;
    font-size: 1.05rem;
    font-weight: 900;
}

.nev-complete-box p {
    margin: 0;
    color: #52705e;
    font-size: 0.76rem;
}

.nev-complete-box__actions {
    display: flex;
    gap: 0.45rem;
}

.nev-sentence-nav {
    display: grid;
    grid-template-columns: 125px minmax(0, 1fr) 125px;
    align-items: center;
    gap: 1rem;
}

.nev-outline-button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.62rem 0.9rem;
    border: 1px solid #d5dfed;
    border-radius: 0.65rem;
    background: #fff;
    color: var(--nev-ink);
    font-size: 0.77rem;
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(31, 54, 96, 0.03);
    transition: border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.nev-outline-button:hover:not(:disabled) {
    border-color: #a9c0eb;
    color: var(--nev-primary);
    transform: translateY(-1px);
}

.nev-outline-button:disabled {
    cursor: not-allowed;
    opacity: 0.48;
}

.nev-next-button.is-hidden {
    visibility: hidden;
    pointer-events: none;
}

.nev-sentence-counter {
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

.nev-sentence-counter > span {
    display: inline-flex;
    align-items: baseline;
    gap: 0.42rem;
    font-size: 1.25rem;
    font-weight: 900;
}

.nev-sentence-counter strong {
    color: var(--nev-primary);
    font-size: 1.95rem;
    line-height: 1;
}

.nev-sentence-counter b {
    font-weight: 700;
}

.nev-sentence-counter small {
    margin-top: 0.18rem;
    color: var(--nev-primary);
    font-size: 0.62rem;
    font-weight: 900;
    letter-spacing: 0.075em;
    text-transform: uppercase;
}

.nev-waveform {
    position: relative;
    display: flex;
    height: 64px;
    align-items: center;
    gap: 2.3px;
    margin: 0.2rem 0 0.15rem;
    overflow: hidden;
}

.nev-waveform > span {
    flex: 1 1 0;
    min-width: 2px;
    max-width: 4px;
    height: var(--bar-height);
    border-radius: 999px;
    background: var(--nev-primary);
}

.nev-waveform > span.is-muted {
    background: #b9c3d5;
}

.nev-waveform__cursor {
    position: absolute;
    top: 7px;
    bottom: 7px;
    left: 66%;
    width: 2px;
    border-radius: 999px;
    background: var(--nev-primary);
    box-shadow: 0 0 0 1px rgba(18, 104, 243, 0.05);
}

.nev-audio-row {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 1rem;
    min-height: 86px;
    padding: 0.15rem 0 0.55rem;
}

.nev-audio-row__center {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding-left: 9rem;
}

.nev-round-button,
.nev-square-button {
    position: relative;
    display: inline-grid;
    flex: 0 0 auto;
    place-items: center;
    border: 1px solid #d8e1ef;
    background: #fff;
    color: var(--nev-ink);
    box-shadow: 0 5px 14px rgba(31, 54, 96, 0.04);
}

.nev-round-button {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.nev-round-button i {
    font-size: 1rem;
}

.nev-round-button small {
    position: absolute;
    color: var(--nev-ink);
    font-size: 0.47rem;
    font-weight: 900;
}

.nev-square-button {
    width: 42px;
    height: 42px;
    border-radius: 0.62rem;
}

.nev-round-button:hover,
.nev-square-button:hover {
    border-color: #a9c0eb;
    color: var(--nev-primary);
}

.nev-play-button {
    display: inline-grid;
    width: 66px;
    height: 66px;
    place-items: center;
    border: 0;
    border-radius: 50%;
    background: linear-gradient(145deg, #176df7, #0e4fe0);
    color: #fff;
    box-shadow: 0 13px 26px rgba(18, 104, 243, 0.26);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.nev-play-button:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 16px 30px rgba(18, 104, 243, 0.32);
}

.nev-play-button i {
    margin-left: 0.15rem;
    font-size: 1.85rem;
}

.nev-audio-row__meta {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

#nevAudioTime {
    min-width: 86px;
    color: var(--nev-text);
    font-size: 0.68rem;
    font-weight: 700;
    text-align: right;
}

.nev-speed-control select,
.nev-language-select select {
    min-height: 42px;
    padding: 0 2rem 0 0.8rem;
    border: 1px solid #d8e1ef;
    border-radius: 0.62rem;
    background-color: #fff;
    color: var(--nev-ink);
    font-size: 0.72rem;
    font-weight: 800;
    outline: 0;
}

.nev-tool-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.55rem;
    margin: 0.05rem 0 0.72rem;
}

.nev-tool-button,
.nev-repeat-control {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    gap: 0.5rem;
    padding: 0.58rem 0.78rem;
    border: 1px solid #d8e1ef;
    border-radius: 0.65rem;
    background: #fff;
    color: var(--nev-ink);
    font-size: 0.75rem;
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(31, 54, 96, 0.025);
}

.nev-tool-button {
    cursor: pointer;
}

.nev-tool-button:hover {
    border-color: #a9c0eb;
    color: var(--nev-primary);
}

.nev-tool-button i,
.nev-repeat-control > i {
    color: var(--nev-primary);
    font-size: 0.95rem;
}

.nev-repeat-control select {
    min-width: 92px;
    padding: 0.05rem 1.6rem 0.05rem 0.2rem;
    border: 0;
    background-color: transparent;
    color: var(--nev-ink);
    font-size: 0.73rem;
    font-weight: 800;
    outline: 0;
}

.nev-answer-card {
    overflow: hidden;
    border: 1px solid #d7e0ed;
    border-radius: 0.76rem;
    background: #fff;
}

.nev-answer-card:focus-within {
    border-color: #8eb0f5;
    box-shadow: 0 0 0 4px rgba(18, 104, 243, 0.07);
}

.nev-answer-card__header {
    display: flex;
    align-items: center;
    padding: 0.72rem 0.85rem;
    border-bottom: 1px solid #e9edf4;
    color: var(--nev-ink);
    font-size: 0.82rem;
    font-weight: 850;
}

.nev-answer-card__header span {
    display: inline-flex;
    align-items: center;
    gap: 0.42rem;
}

.nev-answer-card__header i {
    color: var(--nev-primary);
}

.nev-answer-card__body {
    position: relative;
}

.nev-answer-card textarea {
    display: block;
    width: 100%;
    min-height: 112px;
    padding: 0.8rem 0.95rem 1.75rem;
    resize: vertical;
    border: 0;
    background: #fff;
    color: var(--nev-ink);
    font: inherit;
    font-size: 0.84rem;
    line-height: 1.55;
    outline: 0;
}

.nev-answer-card textarea::placeholder {
    color: #9ca9bc;
}

.nev-character-count {
    position: absolute;
    right: 0.9rem;
    bottom: 0.62rem;
    color: #75829a;
    font-size: 0.63rem;
}

.nev-result,
#result {
    padding: 0 0.9rem;
    font-size: 0.78rem;
    font-weight: 800;
}

.nev-result:empty,
#result:empty {
    display: none;
}

.nev-correct-answer {
    margin: 0.68rem 0.9rem 0.9rem;
    padding: 0.78rem;
    border: 1px solid #f0d49b;
    border-radius: 0.64rem;
    background: #fff8e8;
    color: #76510d;
    font-size: 0.75rem;
    line-height: 1.5;
}

.nev-primary-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.nev-primary-actions.is-complete {
    grid-template-columns: minmax(240px, 380px);
    justify-content: end;
}

.nev-check-button,
.nev-skip-button,
.nev-continue-button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.7rem 1rem;
    border-radius: 0.63rem;
    font-size: 0.82rem;
    font-weight: 850;
    transition:
        background 0.18s ease,
        border-color 0.18s ease,
        box-shadow 0.18s ease,
        color 0.18s ease,
        transform 0.18s ease;
}

.nev-check-button {
    border: 0;
    background: var(--nev-primary);
    color: #fff;
    box-shadow: 0 8px 18px rgba(18, 104, 243, 0.17);
}

.nev-check-button:hover {
    background: var(--nev-primary-dark);
}

.nev-skip-button {
    border: 1px solid #95b4f4;
    background: #fff;
    color: var(--nev-primary);
}

.nev-skip-button:hover {
    border-color: var(--nev-primary);
    background: var(--nev-primary-soft);
}

.nev-continue-button {
    width: 100%;
    border: 0;
    background: linear-gradient(135deg, #1268f3 0%, #0b4bc8 100%);
    color: #ffffff;
    box-shadow: 0 10px 24px rgba(18, 88, 232, 0.24);
}

.nev-continue-button:hover,
.nev-continue-button:focus-visible {
    background: linear-gradient(135deg, #0f5fe5 0%, #083eaa 100%);
    color: #ffffff;
    box-shadow: 0 13px 28px rgba(18, 88, 232, 0.3);
    transform: translateY(-1px);
}

.nev-check-button:focus-visible,
.nev-skip-button:focus-visible,
.nev-continue-button:focus-visible {
    outline: 3px solid rgba(18, 88, 232, 0.18);
    outline-offset: 2px;
}

.nev-tip {
    display: flex;
    align-items: center;
    gap: 0.38rem;
    margin-top: 0.68rem;
    color: var(--nev-text);
    font-size: 0.71rem;
}

.nev-tip i {
    color: #f3a600;
    font-size: 0.95rem;
}

.nev-learning-sidebar {
    display: grid;
    gap: 1rem;
}

.nev-sidebar-card {
    overflow: hidden;
}

.nev-sidebar-card__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.95rem 1rem 0.72rem;
}

.nev-sidebar-card__header h2 {
    margin: 0;
    color: var(--nev-ink);
    font-size: 1rem;
    font-weight: 900;
}

.nev-sidebar-card__header h2 span {
    color: var(--nev-danger);
}

.nev-sidebar-card__header p {
    margin: 0.2rem 0 0;
    color: var(--nev-text);
    font-size: 0.66rem;
}

.nev-sidebar-card__body {
    padding: 0 1rem 0.95rem;
}

.nev-mistake-list {
    display: grid;
    gap: 0.5rem;
    max-height: 228px;
    overflow-y: auto;
}

.nev-empty-state {
    padding: 1rem;
    border: 1px dashed #d6dfec;
    border-radius: 0.72rem;
    color: var(--nev-muted);
    font-size: 0.74rem;
    text-align: center;
}

.nev-mistake-list .btn,
.nev-mistake-list button,
.nev-mistake-list a,
.nev-mistake-list > * {
    border-radius: 0.72rem;
}

.nev-mistake-row {
    display: grid;
    width: 100%;
    grid-template-columns: 34px minmax(0, 1fr) 28px;
    align-items: center;
    gap: 0.65rem;
    padding: 0.68rem 0.72rem;
    border: 1px solid #ffd6d6;
    border-radius: 0.72rem;
    background: #fff4f4;
    color: inherit;
    text-align: left;
}

.nev-mistake-row:hover,
.nev-mistake-row.is-selected {
    border-color: #ffbcbc;
    background: #ffeded;
}

.nev-mistake-row__number {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border-radius: 50%;
    background: #ffdede;
    color: var(--nev-danger);
    font-size: 0.72rem;
    font-weight: 900;
}

.nev-mistake-row__content {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 0.16rem;
}

.nev-mistake-row__content strong {
    overflow: hidden;
    color: var(--nev-ink);
    font-size: 0.7rem;
    font-weight: 850;
    line-height: 1.3;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nev-mistake-row__content small {
    overflow: hidden;
    color: var(--nev-text);
    font-size: 0.61rem;
    line-height: 1.3;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nev-mistake-row__play {
    display: grid;
    width: 26px;
    height: 26px;
    place-items: center;
    border: 1px solid #ffcccc;
    border-radius: 50%;
    color: var(--nev-danger);
    font-size: 0.64rem;
}

.nev-mistake-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.7rem;
}

.nev-mistake-actions .btn {
    flex: 1;
    font-size: 0.71rem;
    font-weight: 800;
}

.nev-transcript-card .nev-sidebar-card__header {
    align-items: center;
    padding-bottom: 0.5rem;
}

.nev-language-select select {
    min-height: 34px;
    padding-right: 1.8rem;
    font-size: 0.65rem;
}

.nev-transcript-preview {
    display: grid;
    padding: 0 0.9rem;
}

.nev-transcript-preview__row {
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr) 26px;
    align-items: center;
    gap: 0.55rem;
    padding: 0.5rem 0.35rem;
    border: 0;
    border-bottom: 1px solid #edf1f6;
    background: transparent;
    color: inherit;
    text-align: left;
}

.nev-transcript-preview__row.is-active {
    border-radius: 0.6rem;
    background: #edf4ff;
}

.nev-transcript-preview__row > span {
    display: grid;
    width: 25px;
    height: 25px;
    place-items: center;
    border-radius: 50%;
    background: #eef2f8;
    color: #5f6d84;
    font-size: 0.65rem;
    font-weight: 850;
}

.nev-transcript-preview__row.is-active > span {
    background: var(--nev-primary);
    color: #fff;
}

.nev-transcript-preview__row p {
    overflow: hidden;
    margin: 0;
    color: var(--nev-text);
    font-size: 0.69rem;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nev-transcript-preview__row > i {
    display: grid;
    width: 24px;
    height: 24px;
    place-items: center;
    border: 1px solid #cfdcf0;
    border-radius: 50%;
    color: var(--nev-primary);
    font-size: 0.65rem;
}

.nev-view-transcript-button {
    display: flex;
    width: calc(100% - 1.8rem);
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    margin: 0.65rem 0.9rem 0.85rem;
    padding: 0.55rem;
    border: 0;
    background: transparent;
    color: var(--nev-primary);
    font-size: 0.7rem;
    font-weight: 850;
}

.nev-full-transcript-card {
    padding: 1rem;
}

.nev-full-transcript-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.9rem;
}

.nev-settings-modal .modal-header span,
.nev-modal-eyebrow {
    color: var(--nev-primary);
    font-size: 0.65rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.nev-full-transcript-card__title {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 0.85rem;
}

.nev-full-transcript-card__header h2 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 900;
}

.nev-back-listening-button {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    gap: 0.42rem;
    padding: 0.45rem 0.68rem;
    border: 1px solid #d7e1f0;
    border-radius: 0.65rem;
    background: #ffffff;
    color: var(--nev-primary);
    font-size: 0.7rem;
    font-weight: 850;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(20, 38, 72, 0.04);
    transition:
        border-color 0.18s ease,
        background 0.18s ease,
        color 0.18s ease,
        transform 0.18s ease;
}

.nev-back-listening-button:hover,
.nev-back-listening-button:focus-visible {
    border-color: #a9c0ed;
    background: var(--nev-primary-soft);
    color: var(--nev-primary-dark);
    transform: translateX(-1px);
}

.nev-full-transcript-card__settings {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.nev-full-transcript-card__settings .form-select {
    min-width: 190px;
    font-size: 0.74rem;
}

.nev-full-transcript-card__settings .form-check {
    margin: 0;
    font-size: 0.72rem;
    font-weight: 700;
}

.nev-full-transcript-grid {
    display: grid;
    grid-template-columns: minmax(300px, 38%) minmax(0, 1fr);
    gap: 1rem;
}

.nev-full-transcript-player {
    display: flex;
    min-height: 430px;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    padding: 1rem;
    border: 1px solid var(--nev-line);
    border-radius: 0.9rem;
    background: #fbfdff;
}

.nev-full-transcript-player audio {
    width: 100%;
}

.nev-full-transcript-current {
    display: flex;
    min-height: 210px;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    padding: 1rem;
    text-align: center;
}

#fullTranscriptCurrentEnglish {
    color: var(--nev-ink);
    font-size: 1.2rem;
    font-weight: 850;
    line-height: 1.5;
}

#fullTranscriptCurrentTranslation {
    margin-top: 0.6rem;
    color: var(--nev-muted);
    font-size: 0.86rem;
    line-height: 1.5;
}

.nev-full-transcript-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nev-full-transcript-nav button {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid #d8e1ef;
    border-radius: 50%;
    background: #fff;
    color: var(--nev-primary);
}

.nev-full-transcript-list {
    max-height: 500px;
    overflow-y: auto;
    border: 1px solid var(--nev-line);
    border-radius: 0.9rem;
    background: #fff;
    scroll-behavior: smooth;
}

.full-transcript-row {
    display: grid;
    width: 100%;
    grid-template-columns: 32px 30px minmax(0, 1fr);
    align-items: start;
    gap: 0.6rem;
    padding: 0.78rem;
    border: 0;
    border-bottom: 1px solid #edf1f6;
    background: #fff;
    color: inherit;
    text-align: left;
}

.full-transcript-row:last-child {
    border-bottom: 0;
}

.full-transcript-row:hover {
    background: #f7faff;
}

.full-transcript-row.active {
    background: #eaf2ff;
}

.transcript-play-icon,
.nev-transcript-number {
    display: grid;
    width: 29px;
    height: 29px;
    place-items: center;
    border-radius: 50%;
    font-size: 0.68rem;
    font-weight: 850;
}

.transcript-play-icon {
    border: 1px solid #d3def0;
    color: var(--nev-primary);
}

.nev-transcript-number {
    background: #eef3fb;
    color: #65738b;
}

.full-transcript-row.active .nev-transcript-number {
    background: var(--nev-primary);
    color: #fff;
}

.nev-transcript-content {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 0.22rem;
    padding-top: 0.2rem;
    color: var(--nev-text);
    font-size: 0.76rem;
    line-height: 1.45;
}

.nev-transcript-content small {
    color: var(--nev-muted);
}

.nev-related-section {
    margin-top: 1rem;
    padding: 0.85rem 1rem 1rem;
}

.nev-related-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.7rem;
}

.nev-related-section__header h2 {
    margin: 0;
    color: var(--nev-ink);
    font-size: 0.92rem;
    font-weight: 900;
}

.nev-related-all-label {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    justify-content: center;
    padding: 0.46rem 0.76rem;
    border: 1px solid #bfd1f3;
    border-radius: 999px;
    background: var(--nev-primary-soft);
    color: var(--nev-primary);
    font: inherit;
    font-size: 0.69rem;
    font-weight: 850;
    white-space: nowrap;
    cursor: pointer;
    transition:
        border-color 0.18s ease,
        background 0.18s ease,
        color 0.18s ease,
        transform 0.18s ease;
}

.nev-related-all-label:hover,
.nev-related-all-label:focus-visible,
.nev-related-all-label[aria-expanded="true"] {
    border-color: #8fb0f2;
    background: #e7f0ff;
    color: var(--nev-primary-dark);
    outline: none;
}

.nev-related-all-label:hover {
    transform: translateY(-1px);
}

.nev-related-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.9rem;
    align-items: stretch;
}

.nev-related-card {
    overflow: hidden;
    display: grid;
    width: 100%;
    grid-template-columns: 112px minmax(0, 1fr);
    min-height: 118px;
    border: 1px solid #dfe6f0;
    border-radius: 0.82rem;
    background: #fff;
    color: inherit;
    font: inherit;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
    appearance: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.nev-related-card[hidden] {
    display: none !important;
}

.nev-related-card.is-current {
    cursor: default;
    border-color: #8fb0f2;
    background:
        linear-gradient(135deg, rgba(18, 88, 232, 0.08), transparent 68%),
        #ffffff;
    box-shadow: 0 8px 20px rgba(18, 88, 232, 0.1);
}

.nev-related-card__current {
    color: var(--nev-primary) !important;
}

.nev-related-card:hover {
    border-color: #afc4eb;
    color: inherit;
    box-shadow: 0 9px 20px rgba(31, 54, 96, 0.08);
    transform: translateY(-2px);
}

.nev-related-card__image {
    position: relative;
    display: grid;
    min-height: 118px;
    place-items: center;
    overflow: hidden;
    background: var(--nev-primary-soft);
    color: var(--nev-primary);
}

.nev-related-card__image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.92);
}

.nev-related-card__image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(9, 32, 74, 0.02),
        rgba(9, 32, 74, 0.3)
    );
    pointer-events: none;
}

.nev-related-card__number {
    position: absolute;
    right: 0.48rem;
    bottom: 0.48rem;
    z-index: 1;
    display: inline-flex;
    min-width: 30px;
    height: 30px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 999px;
    background: rgba(10, 48, 112, 0.8);
    color: #fff;
    font-size: 0.66rem;
    font-weight: 900;
    backdrop-filter: blur(5px);
}

.nev-related-card__image-fallback {
    display: inline-flex;
    width: 48px;
    height: 48px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #fff;
    color: var(--nev-primary);
    font-size: 1rem;
    font-weight: 900;
    box-shadow: 0 8px 20px rgba(18, 88, 232, 0.14);
}

.nev-related-card__content {
    display: flex;
    min-width: 0;
    flex-direction: column;
    justify-content: center;
    gap: 0.34rem;
    padding: 0.72rem 0.78rem;
}

.nev-related-card__top {
    display: flex;
    min-width: 0;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.65rem;
}

.nev-related-card__content strong {
    display: -webkit-box;
    overflow: hidden;
    color: var(--nev-ink);
    font-size: 0.78rem;
    font-weight: 850;
    line-height: 1.35;
    text-overflow: ellipsis;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.nev-related-card__content small {
    flex: 0 0 auto;
    color: var(--nev-primary);
    font-size: 0.61rem;
    font-weight: 800;
    white-space: nowrap;
}

.nev-related-card__description {
    display: -webkit-box;
    overflow: hidden;
    min-height: 4.05em;
    color: var(--nev-text);
    font-size: 0.67rem;
    line-height: 1.42;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.nev-related-card__translation {
    display: -webkit-box;
    overflow: hidden;
    color: #76849a;
    font-size: 0.61rem;
    font-style: italic;
    line-height: 1.35;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

.nev-related-card__level,
.nev-related-card__current {
    color: var(--nev-success);
    font-size: 0.61rem;
    font-weight: 800;
}


.nev-section-navigator {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: stretch;
    gap: 0.8rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e6ebf3;
}

.nev-section-navigator__all,
.nev-section-navigator__next {
    display: flex;
    min-width: 0;
    min-height: 72px;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 0.9rem;
    border: 1px solid #dbe4f1;
    border-radius: 0.85rem;
    background: #fff;
    color: var(--nev-ink);
    text-decoration: none;
    box-shadow: 0 7px 20px rgba(31, 54, 96, 0.045);
    transition:
        border-color 0.18s ease,
        box-shadow 0.18s ease,
        transform 0.18s ease;
}

.nev-section-navigator__all:hover,
.nev-section-navigator__next:hover {
    border-color: #9db9eb;
    color: var(--nev-primary);
    box-shadow: 0 11px 26px rgba(31, 84, 173, 0.1);
    transform: translateY(-2px);
}

.nev-section-navigator__all > i {
    display: inline-flex;
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    align-items: center;
    justify-content: center;
    border-radius: 0.7rem;
    background: var(--nev-primary-soft);
    color: var(--nev-primary);
    font-size: 1rem;
}

.nev-section-navigator__all span,
.nev-section-navigator__next span {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 0.15rem;
}

.nev-section-navigator small {
    color: var(--nev-muted);
    font-size: 0.61rem;
    font-weight: 700;
}

.nev-section-navigator strong {
    overflow: hidden;
    font-size: 0.75rem;
    font-weight: 900;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nev-section-navigator__status {
    display: flex;
    min-width: 145px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.16rem;
    padding: 0.7rem 0.85rem;
    color: var(--nev-text);
    text-align: center;
}

.nev-section-navigator__status span {
    max-width: 180px;
    overflow: hidden;
    font-size: 0.64rem;
    font-weight: 750;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nev-section-navigator__status strong {
    color: var(--nev-ink);
    font-size: 0.72rem;
}

.nev-section-navigator__next {
    justify-content: flex-end;
    border-color: #aac4f3;
    background:
        linear-gradient(135deg, rgba(18, 88, 232, 0.07), transparent 70%),
        #fff;
    text-align: right;
}

.nev-section-navigator__next > i {
    display: inline-flex;
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--nev-primary);
    color: #fff;
    font-size: 0.92rem;
    box-shadow: 0 8px 20px rgba(18, 88, 232, 0.22);
}

.nev-section-navigator__next.is-browse {
    border-color: #c9d6e8;
    background: #f8fafc;
}

.nev-sections-fab {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 1032;
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    gap: 0.5rem;
    padding: 0.68rem 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 999px;
    background: linear-gradient(135deg, #176df7, #0d4edc);
    color: #fff;
    font: inherit;
    font-size: 0.72rem;
    font-weight: 900;
    cursor: pointer;
    box-shadow: 0 14px 32px rgba(17, 78, 190, 0.28);
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.nev-sections-fab:hover {
    transform: translateY(-2px);
    box-shadow: 0 17px 36px rgba(17, 78, 190, 0.34);
}

.nev-sections-panel {
    position: fixed;
    inset: 0;
    z-index: 1085;
}

.nev-sections-panel[hidden] {
    display: none !important;
}

.nev-sections-panel__backdrop {
    position: absolute;
    inset: 0;
    width: 100%;
    border: 0;
    background: rgba(8, 20, 43, 0.5);
    cursor: default;
    backdrop-filter: blur(3px);
}

.nev-sections-panel__drawer {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    width: min(390px, calc(100% - 1rem));
    height: 100%;
    flex-direction: column;
    background: #fff;
    box-shadow: -24px 0 60px rgba(8, 25, 57, 0.24);
    animation: nevSectionDrawerIn 0.22s ease both;
}

@keyframes nevSectionDrawerIn {
    from {
        opacity: 0;
        transform: translateX(32px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.nev-sections-panel__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.15rem;
    border-bottom: 1px solid #e7ecf4;
}

.nev-sections-panel__header span {
    color: var(--nev-primary);
    font-size: 0.64rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nev-sections-panel__header h2 {
    margin: 0.16rem 0 0;
    color: var(--nev-ink);
    font-size: 1.05rem;
    font-weight: 900;
}

.nev-sections-panel__close {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border: 1px solid #dce5f2;
    border-radius: 50%;
    background: #fff;
    color: var(--nev-ink);
    cursor: pointer;
}

.nev-sections-panel__body {
    overflow-y: auto;
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 0.65rem;
    padding: 1rem;
}

.nev-section-option {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr) 26px;
    min-height: 68px;
    align-items: center;
    gap: 0.7rem;
    padding: 0.65rem 0.72rem;
    border: 1px solid #dfe6f0;
    border-radius: 0.82rem;
    background: #fff;
    color: var(--nev-ink);
    text-decoration: none;
}

.nev-section-option:hover {
    border-color: #aac2ee;
    color: var(--nev-primary);
    box-shadow: 0 8px 20px rgba(31, 84, 173, 0.08);
}

.nev-section-option.is-current {
    border-color: #8fb0f2;
    background: linear-gradient(135deg, #edf4ff, #fff);
}

.nev-section-option__number {
    display: inline-flex;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 0.7rem;
    background: var(--nev-primary-soft);
    color: var(--nev-primary);
    font-size: 0.69rem;
    font-weight: 900;
}

.nev-section-option > span:nth-child(2) {
    display: flex;
    min-width: 0;
    flex-direction: column;
    gap: 0.14rem;
}

.nev-section-option small {
    color: var(--nev-muted);
    font-size: 0.6rem;
    font-weight: 700;
}

.nev-section-option strong {
    overflow: hidden;
    font-size: 0.74rem;
    font-weight: 900;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nev-section-option > i {
    color: var(--nev-primary);
    text-align: center;
}

.nev-sections-panel__all {
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    margin-top: auto;
    padding: 0.7rem;
    border-radius: 0.72rem;
    background: var(--nev-primary);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 900;
    text-decoration: none;
}

.nev-sections-panel__all:hover {
    color: #fff;
    background: var(--nev-primary-dark);
}

body.nev-sections-panel-open {
    overflow: hidden;
}

.nev-settings-modal {
    overflow: hidden;
    border: 0;
    border-radius: 1rem;
    box-shadow: 0 24px 60px rgba(16, 35, 70, 0.2);
}

.nev-settings-modal .modal-header {
    padding: 1rem 1.15rem;
    border-bottom-color: #e8edf4;
}

.nev-settings-modal .modal-title {
    margin-top: 0.18rem;
    font-size: 1.12rem;
    font-weight: 900;
}

.nev-settings-modal .modal-body {
    padding: 0.5rem 1.15rem 1rem;
}

.nev-setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.78rem 0;
    border-bottom: 1px solid #edf1f6;
    color: var(--nev-text);
    font-size: 0.77rem;
    font-weight: 700;
}

.nev-setting-row:last-child {
    border-bottom: 0;
}

.nev-setting-row kbd {
    min-width: 48px;
    padding: 0.3rem 0.5rem;
    border: 1px solid #d2ddeb;
    border-bottom-width: 2px;
    border-radius: 0.42rem;
    background: #f7f9fc;
    color: var(--nev-ink);
    font-family: inherit;
    font-size: 0.68rem;
    text-align: center;
}

@media (max-width: 1299.98px) {
    .nev-player-shell {
        width: min(1220px, calc(100% - 2rem));
    }

    .nev-overview-grid,
    .nev-learning-grid {
        grid-template-columns: minmax(0, 1fr) 320px;
    }

    .nev-lesson-card {
        grid-template-columns: 36% minmax(0, 1fr);
    }

    .nev-audio-row__center {
        padding-left: 5rem;
    }

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

@media (max-width: 991.98px) {
    .nev-section-navigator {
        grid-template-columns: 1fr 1fr;
    }

    .nev-section-navigator__status {
        grid-column: 1 / -1;
        grid-row: 1;
        min-height: 52px;
        border-radius: 0.72rem;
        background: #f7f9fc;
    }

    .nev-section-navigator__all,
    .nev-section-navigator__next {
        grid-row: 2;
    }
    .nev-overview-grid,
    .nev-learning-grid,
    .nev-full-transcript-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .nev-progress-card__body {
        grid-template-columns: 82px minmax(0, 1fr);
    }

    .nev-learning-sidebar {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .nev-audio-row__center {
        padding-left: 0;
    }
}

@media (max-width: 767.98px) {
    .nev-player-shell {
        width: min(100% - 1.25rem, 720px);
    }

    .nev-player-topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .nev-player-nav {
        width: 100%;
    }

    .nev-all-categories-button {
        align-self: flex-end;
    }

    .nev-lesson-card {
        grid-template-columns: minmax(0, 1fr);
    }

    .nev-lesson-card__image {
        min-height: 220px;
        max-height: 260px;
    }

    .nev-lesson-card__content {
        padding: 1.15rem;
    }

    .nev-learning-sidebar {
        grid-template-columns: minmax(0, 1fr);
    }

    .nev-sentence-nav {
        grid-template-columns: 46px minmax(0, 1fr) 46px;
    }

    .nev-outline-button {
        width: 46px;
        min-width: 46px;
        padding: 0;
        border-radius: 50%;
    }

    .nev-outline-button span {
        display: none;
    }

    .nev-audio-row {
        grid-template-columns: minmax(0, 1fr);
    }

    .nev-audio-row__meta {
        justify-content: center;
    }

    .nev-tool-row {
        justify-content: flex-start;
    }

    .nev-primary-actions {
        grid-template-columns: minmax(0, 1fr);
    }

    .nev-full-transcript-card__header {
        align-items: flex-start;
        flex-direction: column;
    }

    .nev-full-transcript-card__title {
        width: 100%;
        justify-content: space-between;
    }

    .nev-related-grid {
        display: flex;
        overflow-x: auto;
        padding-bottom: 0.25rem;
        scroll-snap-type: x mandatory;
    }

    .nev-related-card {
        flex: 0 0 320px;
        scroll-snap-align: start;
    }
}

@media (max-width: 575.98px) {
    .nev-section-navigator {
        grid-template-columns: minmax(0, 1fr);
    }

    .nev-section-navigator__status,
    .nev-section-navigator__all,
    .nev-section-navigator__next {
        grid-column: 1;
        grid-row: auto;
    }

    .nev-section-navigator__next {
        justify-content: space-between;
        text-align: left;
    }

    .nev-section-navigator strong {
        white-space: normal;
    }

    .nev-sections-fab {
        right: 0.8rem;
        bottom: 0.8rem;
    }
    .nev-player-page {
        padding-top: 0.75rem;
    }

    .nev-practice-card {
        padding: 0.75rem;
    }

    .nev-progress-card__body {
        grid-template-columns: 72px minmax(0, 1fr);
    }

    .nev-progress-ring {
        width: 70px;
        height: 70px;
    }

    .nev-lesson-card h1 {
        font-size: 2rem;
    }

    .nev-lesson-meta {
        gap: 0.8rem;
    }

    .nev-lesson-meta__item {
        min-width: calc(50% - 0.5rem);
    }

    .nev-waveform {
        gap: 1.5px;
    }

    .nev-waveform > span {
        min-width: 1.5px;
    }

    .nev-audio-row__center {
        gap: 0.45rem;
    }

    .nev-round-button {
        width: 42px;
        height: 42px;
    }

    .nev-play-button {
        width: 58px;
        height: 58px;
    }

    .nev-tool-button,
    .nev-repeat-control {
        flex: 1 1 auto;
        justify-content: center;
    }

    .nev-repeat-control select {
        min-width: 80px;
    }

    .nev-complete-box {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .nev-complete-box__actions {
        grid-column: 1 / -1;
    }

    .nev-full-transcript-card__settings {
        align-items: flex-start;
        flex-direction: column;
    }

    .full-transcript-row {
        grid-template-columns: 30px minmax(0, 1fr);
    }

    .nev-transcript-number {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .nev-player-page *,
    .nev-player-page *::before,
    .nev-player-page *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}