/* Listening: hub and lesson player */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.ls-hero, .ls-method, .ls-levels, .ls-level, .ls-tips, .ls-lesson {
    --level: var(--accent);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

/* Hero */
.ls-hero {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: center;
    padding-top: 64px;
    padding-bottom: 56px;
}

.ls-hero::before {
    content: "";
    position: absolute;
    inset: -40px 0 auto auto;
    z-index: -1;
    width: min(720px, 70vw);
    height: 520px;
    background:
        radial-gradient(closest-side at 30% 40%, color-mix(in srgb, #5f43b2 16%, transparent), transparent),
        radial-gradient(closest-side at 70% 60%, color-mix(in srgb, var(--accent) 18%, transparent), transparent);
    filter: blur(20px);
    pointer-events: none;
}

.ls-hero h1 {
    margin: 0 0 20px;
    font-family: var(--serif);
    font-size: clamp(36px, 5.4vw, 68px);
    font-weight: 600;
    line-height: 1.04;
    letter-spacing: -0.02em;
}

.ls-hero h1 em {
    background: linear-gradient(100deg, var(--accent), #5f43b2 80%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-style: italic;
}

:root[data-theme="dark"] .ls-hero h1 em { background-image: linear-gradient(100deg, var(--accent), #b5a0f5 80%); }

.ls-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 40px;
    margin: 40px 0 0;
}

.ls-stats div { display: flex; flex-direction: column-reverse; }

.ls-stats dt { color: var(--muted); font-size: 15px; }

.ls-stats dd {
    margin: 0;
    font-family: var(--serif);
    font-size: 34px;
    font-weight: 600;
    line-height: 1.15;
}

/* Demo player card */
.ls-demo {
    position: relative;
    margin: 0;
    padding: 26px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 28px;
    background:
        linear-gradient(160deg, color-mix(in srgb, var(--accent) 10%, var(--surface)), var(--surface) 55%);
    box-shadow: var(--shadow), 0 30px 60px -30px color-mix(in srgb, var(--accent) 40%, transparent);
    transform: rotate(-1.2deg);
    transition: transform .4s cubic-bezier(.2, .8, .2, 1);
}

.ls-demo:hover { transform: rotate(0); }

.ls-demo-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 26px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 600;
}

.ls-demo-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    border-radius: 99px;
    background: var(--surface);
    border: 1px solid var(--line);
    color: var(--ink);
}

.ls-live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e5484d;
    box-shadow: 0 0 0 0 rgb(229 72 77 / 50%);
    animation: ls-ping 1.8s infinite;
}

.ls-demo-body {
    display: flex;
    align-items: center;
    gap: 18px;
}

.ls-demo-play, .ls-big-play, .ls-play {
    position: relative;
    display: grid;
    place-items: center;
    flex: none;
    border: 0;
    border-radius: 50%;
    background: var(--level, var(--accent));
    color: var(--on-accent);
    cursor: pointer;
    box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--level, var(--accent)) 70%, transparent);
    transition: transform .15s, box-shadow .15s;
}

.ls-demo-play { width: 64px; height: 64px; background: var(--accent); }

.ls-demo-play:hover, .ls-big-play:hover, .ls-play:hover { transform: scale(1.06); }

.ls-demo-play:active, .ls-big-play:active, .ls-play:active { transform: scale(.96); }

.ls-demo-play svg, .ls-play svg { width: 26px; height: 26px; fill: currentColor; stroke-width: 1.5; }

.icon-pause { display: none; }

.is-playing > .icon-play, .is-playing .icon-play { display: none; }

.is-playing > .icon-pause, .is-playing .icon-pause { display: block; }

.ls-demo-play.is-playing::after, .ls-big-play.is-playing::after, .ls-play.is-playing::after {
    content: "";
    position: absolute;
    inset: -6px;
    border: 2px solid var(--level, var(--accent));
    border-radius: 50%;
    opacity: 0;
    animation: ls-ring 1.6s ease-out infinite;
}

.ls-demo figcaption {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px dashed var(--line);
}

.ls-demo-line {
    font-family: var(--serif);
    font-size: 21px;
    font-weight: 500;
    line-height: 1.4;
}

.ls-demo figcaption small { color: var(--muted); font-size: 15px; }

/* Waveform */
.ls-wave {
    display: flex;
    align-items: center;
    gap: 3px;
    flex: 1;
    min-width: 0;
    height: 64px;
}

.ls-wave span {
    flex: 1;
    min-width: 2px;
    height: var(--h);
    border-radius: 99px;
    background: color-mix(in srgb, var(--level, var(--accent)) 30%, var(--line));
    transform: scaleY(.45);
    transition: transform .3s, background .3s;
}

.is-playing .ls-wave span, .ls-wave.is-playing span {
    background: var(--level, var(--accent));
    animation: ls-bounce 1s ease-in-out infinite alternate;
    animation-delay: calc(var(--i) * -73ms);
}

/* Method */
.ls-method { padding-top: 24px; padding-bottom: 24px; }

.ls-steps {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: step;
}

.ls-steps li {
    position: relative;
    padding: 22px 20px 20px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    counter-increment: step;
}

.ls-steps li::after {
    content: "0" counter(step);
    position: absolute;
    top: 16px;
    right: 18px;
    color: color-mix(in srgb, var(--muted) 45%, transparent);
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 600;
}

.ls-step-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 16px;
    border-radius: 14px;
    background: color-mix(in srgb, var(--accent) 12%, transparent);
    color: var(--accent);
}

.ls-steps li:nth-child(2) .ls-step-icon { background: color-mix(in srgb, #2563a8 14%, transparent); color: #2563a8; }
.ls-steps li:nth-child(3) .ls-step-icon { background: color-mix(in srgb, #96600f 14%, transparent); color: #96600f; }
.ls-steps li:nth-child(4) .ls-step-icon { background: color-mix(in srgb, #a8345a 14%, transparent); color: #a8345a; }
.ls-steps li:nth-child(5) .ls-step-icon { background: color-mix(in srgb, #5f43b2 14%, transparent); color: #5f43b2; }

:root[data-theme="dark"] .ls-steps li:nth-child(2) .ls-step-icon { color: #7db4f0; }
:root[data-theme="dark"] .ls-steps li:nth-child(3) .ls-step-icon { color: #e5b35c; }
:root[data-theme="dark"] .ls-steps li:nth-child(4) .ls-step-icon { color: #f08bab; }
:root[data-theme="dark"] .ls-steps li:nth-child(5) .ls-step-icon { color: #b5a0f5; }

.ls-steps strong { display: block; margin-bottom: 4px; font-size: 18px; }

.ls-steps p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.5; }

/* Level cards */
.ls-levels { padding-top: 48px; }

.ls-level-cards {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
}

.ls-level-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--surface);
    color: var(--ink);
    line-height: 1.35;
    text-decoration: none;
    transition: transform .15s, box-shadow .15s, border-color .15s;
}

.ls-level-card:hover { border-color: var(--level); box-shadow: var(--shadow); transform: translateY(-2px); }

.ls-level-card strong { margin-top: 6px; }

.ls-level-card small { color: var(--muted); font-size: 14px; }

.ls-meter {
    width: 100%;
    height: 6px;
    margin-top: 6px;
    overflow: hidden;
    border-radius: 99px;
    background: var(--surface-2);
}

.ls-meter span {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: var(--level);
    transition: width .6s cubic-bezier(.2, .8, .2, 1);
}

/* Level sections */
.ls-level { padding-top: 64px; }

.ls-speed-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
    padding: 6px 12px;
    border-radius: 99px;
    background: color-mix(in srgb, var(--level) 11%, transparent);
    color: var(--level);
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.ls-speed-badge svg { width: 17px; height: 17px; }

.ls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
    gap: 14px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ls-card {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 20px 20px 18px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    color: var(--ink);
    line-height: 1.4;
    text-decoration: none;
    isolation: isolate;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}

.ls-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: var(--level);
    opacity: .85;
}

.ls-card:hover {
    border-color: color-mix(in srgb, var(--level) 60%, var(--line));
    box-shadow: var(--shadow), 0 18px 40px -24px color-mix(in srgb, var(--level) 60%, transparent);
    transform: translateY(-3px);
}

.ls-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 16px;
}

.ls-format {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px 3px 8px;
    border-radius: 99px;
    background: color-mix(in srgb, var(--level) 11%, transparent);
    color: var(--level);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}

.ls-format svg { width: 16px; height: 16px; }

.ls-card-time { color: var(--muted); font-size: 13px; font-weight: 600; }

.ls-card-title { display: flex; align-items: baseline; gap: 10px; }

.ls-card-title small { color: var(--level); font-family: var(--serif); font-size: 15px; font-weight: 600; }

.ls-card-title strong { font-family: var(--serif); font-size: 22px; font-weight: 600; line-height: 1.2; }

.ls-card-uzbek { margin: 4px 0 0 30px; color: var(--muted); font-size: 15px; }

.ls-card-summary {
    display: -webkit-box;
    margin: 12px 0 18px;
    overflow: hidden;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

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

.ls-card-meta { color: var(--muted); font-size: 13px; }

.ls-card-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--level);
    font-size: 14px;
    font-weight: 700;
}

.ls-card-status svg { width: 16px; height: 16px; transition: transform .2s; }

.ls-card:hover .ls-card-status svg { transform: translateX(3px); }

.ls-card-status.is-done {
    padding: 3px 10px;
    border-radius: 99px;
    background: var(--good-soft);
    color: var(--good);
}

.ls-card-wave {
    position: absolute;
    right: 18px;
    bottom: 50px;
    z-index: -1;
    width: 84px;
    height: 34px;
    background: linear-gradient(to top, var(--level), var(--level)) no-repeat;
    -webkit-mask: repeating-linear-gradient(90deg, #000 0 4px, transparent 4px 7px);
    mask: repeating-linear-gradient(90deg, #000 0 4px, transparent 4px 7px);
    clip-path: polygon(0 60%, 9% 30%, 17% 70%, 26% 10%, 34% 50%, 43% 25%, 51% 65%, 60% 0, 68% 45%, 77% 20%, 85% 60%, 94% 35%, 100% 55%, 100% 100%, 0 100%);
    opacity: .2;
    transition: opacity .2s, transform .3s;
    transform-origin: bottom;
}

.ls-card:hover .ls-card-wave { opacity: .35; animation: ls-pulse 1s ease-in-out infinite alternate; }

@keyframes ls-pulse {
    from { transform: scaleY(.7); }
    to { transform: scaleY(1); }
}

/* Tips */
.ls-tips { padding-top: 72px; }

.ls-tip-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.ls-tip {
    padding: 20px;
    border-radius: 18px;
    background: var(--surface-2);
}

.ls-tip strong { display: block; margin-bottom: 4px; }

.ls-tip p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.5; }

/* Lesson page */
.ls-lesson {
    max-width: 1080px;
    padding-top: 28px;
    padding-bottom: 150px;
}

.ls-lesson .breadcrumb a { color: var(--muted); text-decoration: none; }

.ls-lesson .breadcrumb a:hover { color: var(--level); }

.ls-lesson-title {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 26px;
}

.ls-lesson-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.ls-tag {
    padding: 3px 10px;
    border-radius: 99px;
    background: var(--surface-2);
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.ls-lesson h1 {
    margin: 0;
    font-family: var(--serif);
    font-size: clamp(32px, 4.4vw, 52px);
    font-weight: 600;
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.ls-lesson-uzbek { margin: 8px 0 0; color: var(--muted); font-size: 19px; }

.ls-cast {
    display: flex;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ls-speaker {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 14px 5px 5px;
    border: 1px solid var(--line);
    border-radius: 99px;
    background: var(--surface);
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: border-color .2s, box-shadow .2s;
}

.ls-speaker.is-speaking { border-color: var(--speaker-color); box-shadow: 0 0 0 3px color-mix(in srgb, var(--speaker-color) 20%, transparent); }

[data-speaker="0"] { --speaker-color: var(--level); }
[data-speaker="1"] { --speaker-color: #d9772b; }
:root[data-theme="dark"] [data-speaker="1"] { --speaker-color: #f2a663; }

.ls-avatar {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(140deg, var(--speaker-color), color-mix(in srgb, var(--speaker-color) 55%, #000));
    color: #fff;
    font-size: 14px;
    font-weight: 700;
}

.ls-avatar-lg { width: 64px; height: 64px; font-family: var(--serif); font-size: 26px; }

/* Stepper */
.ls-stepper {
    position: sticky;
    top: calc(var(--header-height) + 10px);
    z-index: 6;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 4px;
    margin-bottom: 22px;
    padding: 5px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.ls-step {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
    padding: 9px 8px;
    border: 0;
    border-radius: 13px;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, color .2s;
}

.ls-step:hover { background: var(--surface-2); color: var(--ink); }

.ls-step-num {
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    flex: none;
    border-radius: 50%;
    background: var(--surface-2);
    font-size: 13px;
    transition: background .2s, color .2s;
}

.ls-step-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.ls-step[aria-selected="true"] { background: var(--level); color: var(--on-accent); }

:root[data-theme="dark"] .ls-step[aria-selected="true"] { color: #10131a; }

.ls-step[aria-selected="true"] .ls-step-num { background: rgb(255 255 255 / 25%); }

.ls-step.is-done .ls-step-num { background: var(--good); color: #fff; font-size: 0; }

.ls-step.is-done .ls-step-num::before { content: "✓"; font-size: 13px; }

/* Panels */
.ls-panel { animation: ls-rise .35s cubic-bezier(.2, .8, .2, 1); }

.ls-panel-head { margin-bottom: 22px; }

.ls-panel-head h2 {
    margin: 0 0 4px;
    font-family: var(--serif);
    font-size: 30px;
    font-weight: 600;
    line-height: 1.2;
}

.ls-panel-head p { max-width: 70ch; margin: 0; color: var(--muted); }

.ls-panel-head-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
}

.ls-panel-foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: 26px;
}

.ls-panel-foot .button { margin-left: auto; cursor: pointer; font: inherit; font-weight: 600; }

.ls-lesson .button { border-color: var(--level); background: var(--level); }

:root[data-theme="dark"] .ls-lesson .button { color: #10131a; }

.ls-lesson .button-quiet, :root[data-theme="dark"] .ls-lesson .button-quiet {
    border-color: var(--line);
    background: var(--surface);
    color: var(--ink);
    cursor: pointer;
    font: inherit;
    font-weight: 600;
}

.ls-hint { margin: 0; color: var(--muted); font-size: 15px; }

/* Words */
.ls-words {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ls-word {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    height: 100%;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    color: var(--ink);
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: border-color .15s, box-shadow .15s, transform .15s;
}

.ls-word:hover { border-color: var(--level); box-shadow: var(--shadow); transform: translateY(-1px); }

.ls-word-play {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    flex: none;
    border-radius: 12px;
    background: color-mix(in srgb, var(--level) 12%, transparent);
    color: var(--level);
    transition: background .15s, color .15s;
}

.ls-word.is-playing .ls-word-play { background: var(--level); color: var(--on-accent); }

.ls-word-text { display: flex; flex-direction: column; min-width: 0; line-height: 1.35; }

.ls-word-text strong { font-family: var(--serif); font-size: 19px; font-weight: 600; }

.ls-word-text small { color: var(--muted); font-size: 14.5px; }

/* Listening stage */
.ls-stage {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    padding: 40px 24px 28px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: var(--surface);
    box-shadow: var(--shadow);
    text-align: center;
    isolation: isolate;
}

.ls-stage-glow {
    position: absolute;
    inset: -30% -10% auto;
    z-index: -1;
    height: 120%;
    background: radial-gradient(closest-side, color-mix(in srgb, var(--level) 18%, transparent), transparent);
    opacity: .5;
    transition: opacity .6s;
}

.ls-stage.is-playing .ls-stage-glow { opacity: 1; animation: ls-breathe 3s ease-in-out infinite; }

.ls-stage-cast { display: flex; justify-content: center; gap: clamp(24px, 8vw, 80px); }

.ls-stage-speaker {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 15px;
    font-weight: 600;
    opacity: .55;
    transform: scale(.94);
    transition: opacity .3s, transform .3s, color .3s;
}

.ls-stage-speaker .ls-avatar { transition: box-shadow .3s; }

.ls-stage-speaker.is-speaking { color: var(--ink); opacity: 1; transform: scale(1); }

.ls-stage-speaker.is-speaking .ls-avatar {
    box-shadow: 0 0 0 5px color-mix(in srgb, var(--speaker-color) 22%, transparent), 0 0 0 12px color-mix(in srgb, var(--speaker-color) 10%, transparent);
    animation: ls-talk .9s ease-in-out infinite alternate;
}

.ls-big-play { width: 88px; height: 88px; }

.ls-big-play svg { width: 34px; height: 34px; fill: currentColor; stroke-width: 1.5; }

.ls-wave-stage { width: min(100%, 560px); flex: none; height: 56px; }

.ls-stage-status { margin: 0; color: var(--muted); font-size: 15px; font-weight: 600; }

.ls-caption {
    max-width: 46ch;
    min-height: 2.9em;
    margin: 0;
    font-family: var(--serif);
    font-size: 22px;
    line-height: 1.4;
}

.ls-task {
    margin-top: 16px;
    padding: 18px 22px;
    border-left: 4px solid var(--tip-line);
    border-radius: 14px;
    background: var(--tip);
}

.ls-task strong { display: block; margin-bottom: 2px; }

.ls-task p { margin: 0; }

/* Switch */
.ls-switch {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
}

.ls-switch input { position: absolute; opacity: 0; pointer-events: none; }

.ls-switch-track {
    position: relative;
    width: 40px;
    height: 23px;
    flex: none;
    border-radius: 99px;
    background: var(--line);
    transition: background .2s;
}

.ls-switch-track::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgb(0 0 0 / 25%);
    transition: transform .2s cubic-bezier(.2, .8, .2, 1);
}

.ls-switch input:checked + .ls-switch-track { background: var(--level); }

.ls-switch input:checked + .ls-switch-track::after { transform: translateX(17px); }

.ls-switch input:focus-visible + .ls-switch-track { outline: 2px solid var(--level); outline-offset: 2px; }

.ls-switch:has(input:checked) { color: var(--ink); }

.ls-toolbar { display: flex; flex-wrap: wrap; gap: 10px 22px; }

/* Questions */
.ls-questions {
    display: grid;
    gap: 14px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ls-question {
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
}

.ls-question-text {
    display: flex;
    gap: 12px;
    margin: 0 0 16px;
    font-size: 19px;
    font-weight: 600;
    line-height: 1.45;
}

.ls-question-text > span:first-child {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    flex: none;
    border-radius: 10px;
    background: color-mix(in srgb, var(--level) 12%, transparent);
    color: var(--level);
    font-size: 15px;
}

.ls-options {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.ls-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--bg);
    color: var(--ink);
    font: inherit;
    line-height: 1.35;
    text-align: left;
    cursor: pointer;
    transition: border-color .15s, background .15s, transform .15s;
}

.ls-option:hover:not(:disabled) { border-color: var(--level); transform: translateY(-1px); }

.ls-option:disabled { cursor: default; }

.ls-option-key {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    flex: none;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: var(--surface);
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.ls-option.is-right { border-color: var(--good); background: var(--good-soft); }

.ls-option.is-right .ls-option-key { border-color: var(--good); background: var(--good); color: #fff; }

.ls-option.is-wrong { border-color: var(--bad); background: var(--bad-soft); animation: ls-shake .35s; }

.ls-option.is-wrong .ls-option-key { border-color: var(--bad); background: var(--bad); color: #fff; }

.ls-option.is-dim { opacity: .5; }

.ls-why {
    margin: 14px 0 0;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--surface-2);
    font-size: 15.5px;
    animation: ls-rise .3s;
}

.ls-why b { color: var(--good); }

.ls-why.is-wrong b { color: var(--bad); }

.ls-score-line { margin: 0; font-weight: 600; }

/* Transcript */
.ls-transcript {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ls-line {
    display: flex;
    gap: 14px;
    padding: 14px 18px 14px 14px;
    border: 1px solid transparent;
    border-radius: 18px;
    background: var(--surface);
    cursor: pointer;
    transition: border-color .2s, box-shadow .2s, background .2s, opacity .2s;
}

.ls-line:hover { border-color: var(--line); }

.ls-line.is-active {
    border-color: color-mix(in srgb, var(--speaker-color, var(--level)) 55%, transparent);
    background: color-mix(in srgb, var(--speaker-color, var(--level)) 6%, var(--surface));
    box-shadow: var(--shadow);
}

.ls-transcript.is-playing .ls-line:not(.is-active) { opacity: .6; }

.ls-line-play {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    flex: none;
    margin-top: 2px;
    border: 0;
    border-radius: 50%;
    background: color-mix(in srgb, var(--speaker-color, var(--level)) 13%, transparent);
    color: var(--speaker-color, var(--level));
    cursor: pointer;
}

.ls-line-play svg { width: 16px; height: 16px; fill: currentColor; }

.ls-line.is-active .ls-line-play { background: var(--speaker-color, var(--level)); color: #fff; }

.ls-line-body { min-width: 0; flex: 1; }

.ls-line-speaker {
    color: var(--speaker-color, var(--level));
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .03em;
    text-transform: uppercase;
}

.ls-line-text {
    margin: 0;
    font-family: var(--serif);
    font-size: 21px;
    line-height: 1.5;
    transition: filter .3s;
}

.ls-line-text .w { border-radius: 5px; transition: background .12s, color .12s; }

.ls-line-text .w.is-said { color: var(--ink); }

.ls-line-text .w.is-now {
    background: color-mix(in srgb, var(--speaker-color, var(--level)) 22%, transparent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--speaker-color, var(--level)) 22%, transparent);
}

.ls-line.is-active .ls-line-text .w:not(.is-said):not(.is-now) { color: color-mix(in srgb, var(--ink) 55%, transparent); }

.ls-line-uzbek { display: none; margin: 4px 0 0; color: var(--muted); font-size: 15.5px; }

.ls-transcript.show-translations .ls-line-uzbek { display: block; }

.ls-transcript.hide-text .ls-line-text { filter: blur(7px); user-select: none; }

.ls-transcript.hide-text .ls-line:hover .ls-line-text, .ls-transcript.hide-text .ls-line.is-revealed .ls-line-text { filter: none; }

/* Dictation */
.ls-dictation {
    display: grid;
    gap: 14px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ls-dict {
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
    transition: border-color .2s;
}

.ls-dict.is-good { border-color: color-mix(in srgb, var(--good) 60%, transparent); }

.ls-dict-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 12px; }

.ls-dict-num { margin-right: 6px; color: var(--level); font-family: var(--serif); font-size: 20px; font-weight: 600; }

.ls-chip-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid color-mix(in srgb, var(--level) 40%, var(--line));
    border-radius: 99px;
    background: color-mix(in srgb, var(--level) 8%, var(--surface));
    color: var(--level);
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: background .15s;
}

.ls-chip-button svg { width: 16px; height: 16px; }

.ls-chip-button:hover { background: color-mix(in srgb, var(--level) 16%, var(--surface)); }

.ls-chip-button.is-playing { background: var(--level); color: var(--on-accent); }

.ls-chip-quiet { border-color: var(--line); background: var(--surface); color: var(--muted); }

.ls-dict textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--bg);
    color: var(--ink);
    font: inherit;
    font-family: var(--serif);
    font-size: 19px;
    resize: vertical;
    outline: 0;
    transition: border-color .15s, box-shadow .15s;
}

.ls-dict textarea:focus { border-color: var(--level); box-shadow: 0 0 0 3px color-mix(in srgb, var(--level) 16%, transparent); }

.ls-dict-hint { margin: 8px 0 0; color: var(--muted); font-family: ui-monospace, monospace; font-size: 15px; letter-spacing: .02em; }

.ls-dict-actions { display: flex; align-items: center; gap: 14px; margin-top: 12px; }

.ls-dict-actions .button { padding: 9px 18px; cursor: pointer; font: inherit; font-weight: 600; }

.ls-dict-score { font-weight: 700; }

.ls-dict-score.is-good { color: var(--good); }

.ls-dict-score.is-bad { color: var(--bad); }

.ls-dict-diff {
    margin: 12px 0 0;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--surface-2);
    font-family: var(--serif);
    font-size: 19px;
    line-height: 1.7;
}

.ls-dict-diff .ok { color: var(--good); }

.ls-dict-diff .miss { color: var(--bad); text-decoration: underline wavy; text-underline-offset: 4px; }

.ls-dict-diff .extra { color: var(--muted); text-decoration: line-through; }

/* Result */
.ls-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 44px 24px;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: radial-gradient(circle at 50% 0, color-mix(in srgb, var(--level) 12%, var(--surface)), var(--surface) 60%);
    box-shadow: var(--shadow);
    text-align: center;
}

.ls-ring { position: relative; width: 160px; height: 160px; }

.ls-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }

.ls-ring circle { fill: none; stroke-width: 10; }

.ls-ring-track { stroke: var(--surface-2); }

.ls-ring-bar {
    stroke: var(--level);
    stroke-dasharray: var(--p) 100;
    stroke-linecap: round;
    transition: stroke-dasharray 1.2s cubic-bezier(.2, .8, .2, 1);
}

.ls-ring strong {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-family: var(--serif);
    font-size: 40px;
    font-weight: 600;
}

.ls-result h2 { margin: 20px 0 4px; font-family: var(--serif); font-size: 32px; font-weight: 600; }

.ls-result-note { max-width: 52ch; margin: 0; color: var(--muted); }

.ls-result-stats {
    display: flex;
    gap: 12px;
    margin: 26px 0;
}

.ls-result-stats div {
    min-width: 110px;
    padding: 12px 18px;
    border-radius: 16px;
    background: var(--surface-2);
}

.ls-result-stats dt { color: var(--muted); font-size: 14px; }

.ls-result-stats dd { margin: 0; font-family: var(--serif); font-size: 26px; font-weight: 600; }

.ls-result-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }

/* Pager */
.ls-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 48px;
}

.ls-pager a {
    display: flex;
    flex-direction: column;
    padding: 16px 20px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--surface);
    color: var(--ink);
    line-height: 1.35;
    text-decoration: none;
    transition: border-color .15s;
}

.ls-pager a:hover { border-color: var(--level); }

.ls-pager small { color: var(--muted); font-size: 14px; }

.ls-pager strong { font-family: var(--serif); font-size: 19px; font-weight: 600; }

.ls-pager-next { grid-column: 2; text-align: right; }

/* Player bar */
.ls-bar {
    position: fixed;
    inset: auto 0 0;
    z-index: 24;
    padding: 0 var(--gutter) calc(12px + env(safe-area-inset-bottom));
    pointer-events: none;
    animation: ls-slide-up .35s cubic-bezier(.2, .8, .2, 1);
}

.ls-bar-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 1080px;
    margin: 0 auto;
    padding: 10px 16px 10px 12px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: color-mix(in srgb, var(--surface) 90%, transparent);
    box-shadow: 0 20px 50px -12px rgb(0 0 0 / 25%), var(--shadow);
    backdrop-filter: blur(18px) saturate(1.4);
    pointer-events: auto;
}

.ls-bar-buttons { display: flex; align-items: center; gap: 4px; }

.ls-play { width: 52px; height: 52px; }

.ls-play svg { width: 22px; height: 22px; }

.ls-icon-btn {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 0;
    border-radius: 12px;
    background: transparent;
    color: var(--ink);
    cursor: pointer;
    transition: background .15s;
}

.ls-icon-btn:hover { background: var(--surface-2); }

.ls-icon-btn svg { width: 19px; height: 19px; }

.ls-bar-track { flex: 1; min-width: 0; }

.ls-bar-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 7px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
}

.ls-bar-meta [data-ls-now] { color: var(--ink); }

.ls-segments { display: flex; gap: 3px; }

.ls-segments button {
    flex: var(--w) 1 0;
    min-width: 6px;
    height: 18px;
    padding: 6px 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.ls-segments span {
    position: relative;
    display: block;
    height: 6px;
    overflow: hidden;
    border-radius: 99px;
    background: var(--line);
    transition: transform .15s;
}

.ls-segments button:hover span { transform: scaleY(1.6); }

.ls-segments span::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--level);
    transform: scaleX(0);
    transform-origin: left;
}

.ls-segments .is-past span::after { transform: scaleX(1); }

.ls-segments .is-current span::after {
    transform: scaleX(var(--progress, 0));
    transition: transform .25s linear;
}

.ls-bar-settings { display: flex; align-items: center; gap: 10px; }

.ls-speeds {
    display: flex;
    padding: 3px;
    border-radius: 12px;
    background: var(--surface-2);
}

.ls-speeds button {
    padding: 5px 8px;
    border: 0;
    border-radius: 9px;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.ls-speeds button[aria-pressed="true"] { background: var(--surface); color: var(--level); box-shadow: 0 1px 3px rgb(0 0 0 / 12%); }

.ls-voice select {
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 11px;
    background: var(--surface);
    color: var(--ink);
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.ls-unsupported {
    margin-top: 16px;
    padding: 14px 18px;
    border-radius: 14px;
    background: var(--bad-soft);
    color: var(--bad);
    font-weight: 600;
}

/* Animations */
@keyframes ls-bounce {
    from { transform: scaleY(.25); }
    to { transform: scaleY(1); }
}

@keyframes ls-ring {
    from { opacity: .7; transform: scale(.9); }
    to { opacity: 0; transform: scale(1.35); }
}

@keyframes ls-ping {
    70% { box-shadow: 0 0 0 8px rgb(229 72 77 / 0%); }
    100% { box-shadow: 0 0 0 0 rgb(229 72 77 / 0%); }
}

@keyframes ls-breathe {
    50% { transform: scale(1.08); }
}

@keyframes ls-talk {
    to { transform: scale(1.06); }
}

@keyframes ls-rise {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: none; }
}

@keyframes ls-slide-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: none; }
}

@keyframes ls-shake {
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* Responsive */
@media (max-width: 1100px) {
    .ls-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .ls-tip-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ls-bar-inner { flex-wrap: wrap; gap: 10px 16px; }
    .ls-bar-track { order: -1; flex-basis: 100%; }
    .ls-bar-settings { margin-left: auto; }
}

@media (max-width: 900px) {
    .ls-hero { grid-template-columns: 1fr; padding-top: 40px; }
    .ls-demo { transform: none; }
    .ls-level-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .ls-lesson-title { flex-direction: column; align-items: flex-start; }
    .ls-step { flex-direction: column; gap: 3px; padding: 7px 2px; font-size: 12px; }
}

@media (max-width: 620px) {
    .ls-hero, .ls-method, .ls-levels, .ls-level, .ls-tips, .ls-lesson { padding-left: 16px; padding-right: 16px; }
    .ls-stats { gap: 14px 26px; }
    .ls-stats dd { font-size: 28px; }
    .ls-demo { padding: 20px; border-radius: 22px; }
    .ls-demo-line { font-size: 18px; }
    .ls-steps { grid-template-columns: 1fr; }
    .ls-steps li { display: grid; grid-template-columns: 44px 1fr; gap: 0 14px; padding: 16px; }
    .ls-steps .ls-step-icon { grid-row: span 2; margin: 0; }
    .ls-level-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ls-level .level-header { flex-wrap: wrap; }
    .ls-speed-badge { margin-left: 0; }
    .ls-tip-grid { grid-template-columns: 1fr; }
    .ls-options { grid-template-columns: 1fr; }
    .ls-stepper { top: calc(var(--header-height) + 6px); border-radius: 14px; }
    .ls-step-label { font-size: 11px; }
    .ls-stage { padding: 28px 16px 22px; border-radius: 22px; }
    .ls-avatar-lg { width: 52px; height: 52px; font-size: 22px; }
    .ls-caption { font-size: 19px; }
    .ls-line { padding: 12px; gap: 10px; }
    .ls-line-text { font-size: 18.5px; }
    .ls-question { padding: 18px 16px; }
    .ls-question-text { font-size: 17.5px; }
    .ls-result-stats { flex-wrap: wrap; justify-content: center; }
    .ls-result-stats div { min-width: 92px; padding: 10px 14px; }
    .ls-pager { grid-template-columns: 1fr; }
    .ls-pager-next { grid-column: auto; }
    .ls-bar { padding: 0 8px calc(8px + env(safe-area-inset-bottom)); }
    .ls-bar-inner { padding: 8px 10px; border-radius: 20px; }
    .ls-play { width: 46px; height: 46px; }
    .ls-speeds button { padding: 5px 6px; }
    .ls-lesson { padding-bottom: 200px; }
}

@media (prefers-reduced-motion: reduce) {
    .ls-wave span, .ls-card-wave, .ls-stage-glow, .ls-avatar, .ls-live-dot, .ls-panel, .ls-bar { animation: none !important; }
}

/* Hub: level tabs, filters and units */
.ls-level-card.is-active {
    border-color: var(--level);
    background: color-mix(in srgb, var(--level) 8%, var(--surface));
    box-shadow: var(--shadow), 0 0 0 1px var(--level);
}

.ls-filters {
    position: sticky;
    top: calc(var(--header-height) + 8px);
    z-index: 6;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 18px;
    margin-top: 16px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: color-mix(in srgb, var(--surface) 90%, transparent);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
    scroll-margin-top: calc(var(--header-height) + 20px);
}

.ls-search {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1 1 220px;
    min-width: 0;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--bg);
    color: var(--muted);
}

.ls-search:focus-within { border-color: var(--accent); }

.ls-search input {
    width: 100%;
    min-width: 0;
    height: 40px;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink);
    font: inherit;
    font-size: 15px;
}

.ls-chips { display: flex; flex-wrap: wrap; gap: 6px; }

.ls-chips button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 99px;
    background: var(--surface);
    color: var(--muted);
    font: inherit;
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    transition: border-color .15s, color .15s, background .15s;
}

.ls-chips button svg { width: 15px; height: 15px; }

.ls-chips button:hover { border-color: var(--accent); color: var(--ink); }

.ls-chips button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent); color: var(--on-accent); }

.ls-filters .ls-switch { font-size: 14px; white-space: nowrap; }

.ls-level { padding-top: 40px; }

.ls-level[hidden] { display: none; }

.ls-unit + .ls-unit { margin-top: 30px; }

.ls-unit-title {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin: 0 0 12px;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .02em;
    text-transform: uppercase;
    color: var(--level);
}

.ls-unit-title small {
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0;
    text-transform: none;
}

.ls-unit-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--line);
    align-self: center;
}

.ls-grid [hidden] { display: none; }

.ls-empty {
    padding: 40px 20px;
    border: 1px dashed var(--line);
    border-radius: 18px;
    color: var(--muted);
    text-align: center;
}

@media (max-width: 620px) {
    .ls-level-cards { grid-template-columns: repeat(5, minmax(120px, 1fr)); overflow-x: auto; padding-bottom: 4px; scroll-snap-type: x mandatory; }
    .ls-level-card { scroll-snap-align: start; padding: 14px; }
    .ls-filters { padding: 8px; border-radius: 14px; }
    .ls-chips { flex-wrap: nowrap; overflow-x: auto; width: 100%; padding-bottom: 2px; }
    .ls-chips button { flex: none; }
}