:root {
    --b2-ink: #17283a;
    --b2-primary: #273e57;
    --b2-accent: #0ea5e9;
    --b2-accent-dark: #0284c7;
    --b2-sky-soft: #eaf8ff;
    --b2-canvas: #f6f8fb;
    --b2-card: #ffffff;
    --b2-text: #4b5873;
    --b2-muted: #768399;
    --b2-line: #e3e8ef;
    --b2-success: #138a64;
    --b2-success-soft: #e9f8f2;
    --b2-warning: #c77910;
    --b2-warning-soft: #fff7e5;
    --b2-danger: #c2413b;
    --b2-danger-soft: #fff0ef;
    --b2-shadow: 0 24px 70px rgba(28, 50, 74, 0.11);
    --b2-shadow-soft: 0 12px 36px rgba(28, 50, 74, 0.08);
}

/* Evaluated B2 production */

.b2-production-task__meta,
.b2-production-task__action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.b2-production-task__meta {
    margin-bottom: 14px;
}

.b2-production-task__meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--b2-accent-dark);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-production-task__meta span i {
    font-size: 16px;
}

.b2-production-task__meta small,
.b2-production-task__action > span {
    color: var(--b2-muted);
    font-size: 9px;
    font-weight: 650;
}

.b2-production-task__action {
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid #cbe6f1;
}

.b2-production-task__action .b2-button {
    flex: 0 0 auto;
}

.b2-production,
.b2-production-results {
    min-height: calc(100vh - 152px);
}

.b2-production__inner,
.b2-production-results__inner {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
    padding: 28px 0 70px;
}

.b2-production-hero {
    padding: 42px 46px;
    border-radius: 21px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: center;
    gap: 54px;
    color: #d4e0e9;
    background:
        radial-gradient(circle at 92% 15%, rgba(14, 165, 233, 0.2), transparent 31%),
        linear-gradient(145deg, var(--b2-ink), #1d3b54);
    box-shadow: 0 20px 54px rgba(18, 42, 61, 0.13);
}

.b2-production-hero h1 {
    max-width: 760px;
    margin: 9px 0 13px;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(34px, 5vw, 52px);
    letter-spacing: -0.045em;
    line-height: 1.02;
}

.b2-production-hero > div:first-child > p {
    max-width: 750px;
    margin: 0;
    color: #bfd0dc;
    font-size: 15px;
    line-height: 1.7;
}

.b2-production-hero__target {
    min-height: 170px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    display: grid;
    align-content: center;
    gap: 5px;
    background: rgba(255, 255, 255, 0.07);
}

.b2-production-hero__target > i {
    margin-bottom: 9px;
    color: #65d4fa;
    font-size: 28px;
}

.b2-production-hero__target span {
    color: #89a2b3;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.b2-production-hero__target strong {
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 21px;
}

.b2-production-hero__target small {
    color: #a8bdcb;
    font-size: 10px;
}

.b2-production-layout {
    padding-top: 28px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
    gap: 24px;
}

.b2-production-main {
    display: grid;
    gap: 18px;
}

.b2-production-panel {
    padding: 30px;
    border: 1px solid var(--b2-line);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-production-panel__heading {
    display: flex;
    align-items: center;
    gap: 14px;
}

.b2-production-panel__heading > span {
    width: 37px;
    height: 37px;
    flex: 0 0 37px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    color: var(--b2-primary);
    background: #edf3f6;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px;
    font-weight: 750;
}

.b2-production-panel__heading small {
    color: var(--b2-accent-dark);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-production-panel__heading h2 {
    margin: 3px 0 0;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 23px;
    letter-spacing: -0.025em;
}

.b2-production-checklist {
    margin: 22px 0 0 51px;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 9px;
    list-style: none;
}

.b2-production-checklist li {
    min-height: 48px;
    padding: 12px 13px;
    border: 1px solid #dfe8ed;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--b2-text);
    background: #f9fbfc;
    font-size: 10px;
    font-weight: 650;
    line-height: 1.45;
}

.b2-production-checklist i {
    color: var(--b2-success);
    font-size: 17px;
}

.b2-production-editor {
    margin: 25px 0 0 51px;
}

.b2-production-editor > label {
    margin-bottom: 8px;
    display: block;
    color: var(--b2-primary);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.b2-production-editor textarea {
    width: 100%;
    min-height: 245px;
    padding: 20px;
    resize: vertical;
    border: 1px solid #cfdce4;
    border-radius: 13px;
    outline: 0;
    color: var(--b2-ink);
    background: #fbfcfd;
    font: 14px/1.72 Inter, sans-serif;
    transition: border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.b2-production-editor textarea:focus {
    border-color: var(--b2-accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.09);
}

.b2-production-editor__footer {
    margin-top: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.b2-production-word-count {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.b2-production-word-count strong {
    color: var(--b2-ink);
    font-family: "JetBrains Mono", monospace;
    font-size: 20px;
}

.b2-production-word-count span {
    color: var(--b2-text);
    font-size: 10px;
    font-weight: 700;
}

.b2-production-word-count small {
    margin-left: 7px;
    color: var(--b2-muted);
    font-size: 9px;
}

.b2-production-scope-note {
    margin: 14px 0 0;
    display: flex;
    gap: 7px;
    color: var(--b2-muted);
    font-size: 9px;
    line-height: 1.5;
}

.b2-production-scope-note i {
    color: var(--b2-accent-dark);
    font-size: 15px;
}

.b2-speech-recorder {
    min-height: 94px;
    margin-bottom: 14px;
    padding: 17px 19px;
    border: 1px solid #d7e3e9;
    border-radius: 13px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 16px;
    background: #f6f9fa;
    transition: border-color 160ms ease, background 160ms ease;
}

.b2-speech-recorder.is-recording {
    border-color: #6ccab0;
    background: #effaf6;
}

.b2-speech-recorder__button {
    min-width: 156px;
    min-height: 45px;
    padding: 10px 15px;
    border: 0;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    color: #fff;
    background: var(--b2-primary);
    font: 750 10px/1 Inter, sans-serif;
}

.b2-speech-recorder__button:hover {
    background: #173d58;
}

.b2-speech-recorder__button:disabled {
    cursor: not-allowed;
    color: var(--b2-muted);
    background: #e4ebef;
}

.b2-speech-recorder.is-recording .b2-speech-recorder__button {
    background: #bb463f;
}

.b2-speech-recorder__button i {
    font-size: 18px;
}

.b2-speech-recorder__status {
    display: grid;
    gap: 3px;
}

.b2-speech-recorder__status strong {
    color: var(--b2-ink);
    font-family: "JetBrains Mono", monospace;
    font-size: 18px;
}

.b2-speech-recorder__status span {
    color: var(--b2-muted);
    font-size: 9px;
}

.b2-speech-recorder__pulse {
    height: 32px;
    display: flex;
    align-items: center;
    gap: 3px;
}

.b2-speech-recorder__pulse span {
    width: 3px;
    height: 8px;
    border-radius: 99px;
    background: #b8c8d2;
}

.b2-speech-recorder.is-recording .b2-speech-recorder__pulse span {
    background: var(--b2-success);
    animation: b2-speech-pulse 800ms ease-in-out infinite alternate;
}

.b2-speech-recorder.is-recording .b2-speech-recorder__pulse span:nth-child(2) {
    animation-delay: 120ms;
}

.b2-speech-recorder.is-recording .b2-speech-recorder__pulse span:nth-child(3) {
    animation-delay: 240ms;
}

.b2-speech-recorder.is-recording .b2-speech-recorder__pulse span:nth-child(4) {
    animation-delay: 360ms;
}

@keyframes b2-speech-pulse {
    to {
        height: 27px;
    }
}

.b2-production-auth {
    margin: 25px 0 0 51px;
    padding: 35px;
    border: 1px dashed #c9d9e2;
    border-radius: 14px;
    text-align: center;
    background: #f8fafb;
}

.b2-production-auth > i {
    color: var(--b2-accent-dark);
    font-size: 40px;
}

.b2-production-auth h3 {
    margin: 12px 0 7px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 23px;
}

.b2-production-auth p {
    max-width: 460px;
    margin: 0 auto;
    color: var(--b2-muted);
    font-size: 11px;
    line-height: 1.6;
}

.b2-production-auth > div {
    margin-top: 19px;
    display: flex;
    justify-content: center;
    gap: 9px;
}

.b2-production-aside {
    position: sticky;
    top: 22px;
    display: grid;
    gap: 14px;
}

.b2-rubric-card,
.b2-latest-attempt {
    padding: 25px;
    border: 1px solid var(--b2-line);
    border-radius: 17px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-rubric-card h2 {
    margin: 8px 0 19px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 23px;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.b2-rubric-card__criteria {
    display: grid;
    gap: 8px;
}

.b2-rubric-card__criteria article {
    padding: 12px;
    border-radius: 10px;
    background: #f5f8fa;
}

.b2-rubric-card__criteria article > div {
    display: grid;
    grid-template-columns: 24px 1fr auto;
    align-items: center;
    gap: 8px;
}

.b2-rubric-card__criteria span {
    width: 23px;
    height: 23px;
    border-radius: 7px;
    display: grid;
    place-items: center;
    color: var(--b2-accent-dark);
    background: #e4f4fa;
    font-family: "JetBrains Mono", monospace;
    font-size: 7px;
    font-weight: 800;
}

.b2-rubric-card__criteria strong {
    color: var(--b2-primary);
    font-size: 10px;
}

.b2-rubric-card__criteria b {
    color: var(--b2-ink);
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
}

.b2-rubric-card__criteria p {
    margin: 7px 0 0 32px;
    color: var(--b2-muted);
    font-size: 8px;
    line-height: 1.45;
}

.b2-rubric-card__threshold {
    margin: 16px 0 0;
    padding-top: 15px;
    border-top: 1px solid var(--b2-line);
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--b2-muted);
    font-size: 8px;
    line-height: 1.4;
}

.b2-rubric-card__threshold i {
    color: var(--b2-success);
    font-size: 17px;
}

.b2-rubric-card__threshold strong {
    color: var(--b2-ink);
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
}

.b2-latest-attempt {
    display: grid;
    gap: 5px;
}

.b2-latest-attempt > span {
    color: var(--b2-muted);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-latest-attempt > strong {
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 18px;
}

.b2-latest-attempt > small {
    color: var(--b2-muted);
    font-size: 8px;
}

.b2-latest-attempt a {
    margin-top: 7px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--b2-accent-dark);
    font-size: 9px;
    font-weight: 750;
}

/* Pending evaluation */

.b2-evaluation-state {
    min-height: calc(100vh - 152px);
    padding: 70px 24px;
    display: grid;
    place-items: center;
}

.b2-evaluation-state__card {
    width: min(620px, 100%);
    padding: 54px;
    border: 1px solid var(--b2-line);
    border-radius: 22px;
    text-align: center;
    background: #fff;
    box-shadow: 0 24px 80px rgba(27, 55, 76, 0.12);
}

.b2-evaluation-state__visual {
    width: 86px;
    height: 86px;
    margin: 0 auto 25px;
    position: relative;
    border-radius: 50%;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(145deg, var(--b2-accent), #42c89c);
}

.b2-evaluation-state__visual > i {
    position: relative;
    z-index: 2;
    font-size: 34px;
}

.b2-evaluation-state__visual > span {
    position: absolute;
    inset: -8px;
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: inherit;
    animation: b2-evaluation-ring 1.6s ease-out infinite;
}

.b2-evaluation-state__card.is-failed .b2-evaluation-state__visual {
    background: linear-gradient(145deg, #c2524c, #e68b60);
}

@keyframes b2-evaluation-ring {
    to {
        opacity: 0;
        transform: scale(1.18);
    }
}

.b2-evaluation-state__card h1 {
    margin: 9px 0 10px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 38px;
    letter-spacing: -0.035em;
}

.b2-evaluation-state__card > p {
    max-width: 470px;
    min-height: 42px;
    margin: 0 auto;
    color: var(--b2-muted);
    font-size: 12px;
    line-height: 1.65;
}

.b2-evaluation-state__progress {
    height: 7px;
    margin: 28px 0 13px;
    overflow: hidden;
    border-radius: 99px;
    background: #e9eef2;
}

.b2-evaluation-state__progress span {
    width: 42%;
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--b2-accent), #4dcda3);
    animation: b2-evaluation-progress 1.5s ease-in-out infinite alternate;
}

@keyframes b2-evaluation-progress {
    to {
        margin-left: 58%;
    }
}

.b2-evaluation-state__card > small {
    display: block;
    color: var(--b2-muted);
    font-size: 8px;
}

.b2-evaluation-state__card form {
    margin: 22px 0;
}

.b2-evaluation-state__card > .b2-text-button {
    margin-top: 25px;
    display: inline-flex;
}

/* Production results */

.b2-production-score {
    padding: 45px 48px;
    border-radius: 21px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
    color: #d3e0e9;
    background:
        radial-gradient(circle at 90% 20%, rgba(75, 211, 160, 0.17), transparent 28%),
        var(--b2-ink);
}

.b2-production-score h1 {
    margin: 7px 0 8px;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 47px;
    letter-spacing: -0.045em;
}

.b2-production-score > div:first-child > p {
    max-width: 660px;
    margin: 0;
    color: #b8cad7;
    font-size: 13px;
    line-height: 1.65;
}

.b2-production-score__meta {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.b2-production-score__meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #d4e1ea;
    font-size: 9px;
    font-weight: 700;
}

.b2-production-score__meta i {
    color: #6bd4fb;
    font-size: 16px;
}

.b2-production-score__ring {
    width: 168px;
    height: 168px;
    flex: 0 0 168px;
    padding: 10px;
    border-radius: 50%;
    background: conic-gradient(#4bd3a0 0 var(--score), rgba(255, 255, 255, 0.13) var(--score) 360deg);
}

.b2-production-score__ring > div {
    width: 100%;
    height: 100%;
    border-radius: inherit;
    display: grid;
    place-content: center;
    text-align: center;
    background: var(--b2-ink);
}

.b2-production-score__ring strong {
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 39px;
    line-height: 1;
}

.b2-production-score__ring span {
    margin-top: 5px;
    color: #8fa7b8;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px;
}

.b2-production-results__section {
    padding-top: 58px;
}

.b2-production-result-grid {
    margin-top: 25px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.b2-production-result-grid article {
    padding: 23px;
    border: 1px solid var(--b2-line);
    border-radius: 15px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-production-result-grid__top {
    display: grid;
    grid-template-columns: 29px 1fr auto;
    align-items: center;
    gap: 10px;
}

.b2-production-result-grid__top span {
    width: 29px;
    height: 29px;
    border-radius: 8px;
    display: grid;
    place-items: center;
    color: var(--b2-accent-dark);
    background: #e8f6fb;
    font-family: "JetBrains Mono", monospace;
    font-size: 8px;
    font-weight: 800;
}

.b2-production-result-grid__top strong {
    color: var(--b2-primary);
    font-size: 12px;
}

.b2-production-result-grid__top b {
    color: var(--b2-ink);
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
}

.b2-production-result-grid__bar {
    height: 6px;
    margin: 15px 0;
    overflow: hidden;
    border-radius: 99px;
    background: #e9eef2;
}

.b2-production-result-grid__bar span {
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--b2-accent), #4ecda3);
}

.b2-production-result-grid blockquote {
    margin: 0;
    padding: 10px 12px;
    border-left: 2px solid var(--b2-accent);
    color: #405b6d;
    background: #f4f9fb;
    font-size: 9px;
    font-style: italic;
    line-height: 1.5;
}

.b2-production-result-grid article > p {
    margin: 13px 0 0;
    color: var(--b2-text);
    font-size: 10px;
    line-height: 1.6;
}

.b2-feedback-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.b2-feedback-columns > article {
    padding: 27px;
    border: 1px solid var(--b2-line);
    border-radius: 16px;
    display: grid;
    grid-template-columns: 35px 1fr;
    gap: 3px 12px;
    background: #fff;
}

.b2-feedback-columns > article > i {
    grid-row: 1 / 3;
    font-size: 30px;
}

.b2-feedback-columns .is-strength > i {
    color: var(--b2-success);
}

.b2-feedback-columns .is-priority > i {
    color: var(--b2-accent-dark);
}

.b2-feedback-columns span {
    color: var(--b2-muted);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-feedback-columns h2 {
    margin: 2px 0 0;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 22px;
}

.b2-feedback-columns ul,
.b2-feedback-columns ol {
    grid-column: 2;
    margin: 14px 0 0;
    padding-left: 18px;
    color: var(--b2-text);
    font-size: 10px;
    line-height: 1.6;
}

.b2-feedback-columns li + li {
    margin-top: 7px;
}

.b2-improved-version {
    border: 1px solid #cbe6f1;
    border-radius: 15px;
    overflow: hidden;
    background: #f2fafe;
}

.b2-improved-version summary {
    padding: 18px 21px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    color: var(--b2-primary);
    font-size: 11px;
    font-weight: 750;
}

.b2-improved-version p {
    margin: 0;
    padding: 0 21px 21px;
    color: var(--b2-text);
    font-size: 11px;
    line-height: 1.75;
}

.b2-submission-review {
    margin-top: 58px;
    padding: 29px;
    border: 1px solid var(--b2-line);
    border-radius: 16px;
    background: #fff;
}

.b2-submission-review h2 {
    margin: 6px 0 0;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 23px;
}

.b2-submission-review > p {
    margin: 21px 0 0;
    padding: 19px;
    border-radius: 11px;
    color: var(--b2-text);
    background: #f7f9fa;
    font-size: 11px;
    line-height: 1.75;
}

.b2-production-results__actions {
    margin-top: 19px;
    display: flex;
    gap: 9px;
}

.b2-production-results__scope {
    margin: 24px 0 0;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 6px;
    color: var(--b2-muted);
    font-size: 9px;
    text-align: center;
}

.b2-production-results__scope i {
    color: var(--b2-accent-dark);
    font-size: 14px;
}

@media (max-width: 980px) {
    .b2-production-layout {
        grid-template-columns: 1fr;
    }

    .b2-production-aside {
        position: static;
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 760px) {
    .b2-production__inner,
    .b2-production-results__inner {
        width: min(100% - 28px, 1180px);
    }

    .b2-production-task__action,
    .b2-production-editor__footer,
    .b2-production-score {
        align-items: flex-start;
        flex-direction: column;
    }

    .b2-production-task__action .b2-button,
    .b2-production-editor__footer .b2-button {
        width: 100%;
    }

    .b2-production-hero {
        padding: 32px 23px;
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .b2-production-hero h1 {
        font-size: 38px;
    }

    .b2-production-hero__target {
        min-height: 0;
    }

    .b2-production-panel {
        padding: 23px 18px;
    }

    .b2-production-checklist,
    .b2-production-editor,
    .b2-production-auth {
        margin-left: 0;
    }

    .b2-production-checklist {
        grid-template-columns: 1fr;
    }

    .b2-speech-recorder {
        grid-template-columns: 1fr auto;
    }

    .b2-speech-recorder__button {
        grid-column: 1 / -1;
        width: 100%;
    }

    .b2-production-aside,
    .b2-production-result-grid,
    .b2-feedback-columns {
        grid-template-columns: 1fr;
    }

    .b2-production-score {
        padding: 34px 24px;
    }

    .b2-production-score h1 {
        font-size: 39px;
    }

    .b2-production-score__ring {
        width: 145px;
        height: 145px;
        flex-basis: 145px;
    }

    .b2-production-results__actions,
    .b2-production-auth > div {
        display: grid;
        grid-template-columns: 1fr;
    }

    .b2-production-results__actions .b2-button {
        width: 100%;
    }

    .b2-evaluation-state {
        padding: 40px 14px;
    }

    .b2-evaluation-state__card {
        padding: 38px 22px;
    }
}

.b2-body {
    min-height: 100vh;
    margin: 0;
    background: var(--b2-canvas);
    color: var(--b2-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

.b2-body *,
.b2-body *::before,
.b2-body *::after {
    box-sizing: border-box;
}

.b2-body a {
    text-decoration: none;
}

.b2-shell {
    min-height: 100vh;
    overflow: hidden;
}

.b2-shell--site-header {
    padding-top: 64px;
}

.b2-topbar {
    position: relative;
    z-index: 10;
    color: #fff;
    background:
        radial-gradient(circle at 76% -160%, rgba(14, 165, 233, 0.52), transparent 44%),
        var(--b2-ink);
}

.b2-topbar__inner {
    width: min(1180px, calc(100% - 48px));
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.b2-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #fff;
}

.b2-brand__mark {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 12px;
    background: linear-gradient(145deg, var(--b2-accent), #087bb5);
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.24);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 22px;
    font-weight: 800;
}

.b2-brand__text {
    display: grid;
    gap: 1px;
}

.b2-brand__text strong {
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 15px;
    letter-spacing: 0.11em;
}

.b2-brand__text span {
    color: #b9c8d6;
    font-size: 12px;
    font-weight: 600;
}

.b2-topbar__badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 13px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    color: #dce8f1;
    background: rgba(255, 255, 255, 0.07);
    font-size: 13px;
    font-weight: 600;
}

.b2-topbar__badge i {
    color: #6dd6ff;
    font-size: 17px;
}

.b2-topbar__badge--complete i {
    color: #65e6b7;
}

.b2-test-meta {
    display: flex;
    align-items: center;
    gap: 22px;
    font-size: 13px;
}

.b2-timer {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.07);
    font-family: "JetBrains Mono", monospace;
    font-weight: 700;
}

.b2-timer i {
    color: #6dd6ff;
    font-size: 17px;
}

.b2-timer.is-low {
    border-color: rgba(251, 191, 36, 0.5);
    color: #fde68a;
}

.b2-timer.is-expired {
    border-color: rgba(248, 113, 113, 0.5);
    color: #fecaca;
}

.b2-question-count {
    color: #b9c8d6;
    white-space: nowrap;
}

.b2-question-count strong {
    color: #fff;
}

.b2-footer {
    width: min(1180px, calc(100% - 48px));
    min-height: 76px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--b2-muted);
    font-size: 12px;
}

.b2-button {
    min-height: 50px;
    padding: 0 20px;
    border: 1px solid transparent;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    cursor: pointer;
    font: inherit;
    font-size: 14px;
    font-weight: 750;
    line-height: 1;
    transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease, background 150ms ease;
}

.b2-button:hover:not(:disabled) {
    transform: translateY(-1px);
}

.b2-button:focus-visible,
.b2-option:has(input:focus-visible),
.b2-audio-player__button:focus-visible,
.b2-review-item summary:focus-visible,
.b2-brand:focus-visible {
    outline: 3px solid rgba(14, 165, 233, 0.28);
    outline-offset: 3px;
}

.b2-button--primary {
    color: #fff;
    background: var(--b2-accent);
    box-shadow: 0 12px 24px rgba(14, 165, 233, 0.23);
}

.b2-button--primary:hover:not(:disabled) {
    background: var(--b2-accent-dark);
    box-shadow: 0 14px 28px rgba(14, 165, 233, 0.3);
}

.b2-button--secondary {
    border-color: #ccd6e0;
    color: var(--b2-primary);
    background: #fff;
}

.b2-button--secondary:hover:not(:disabled) {
    border-color: #9fb2c3;
    background: #f9fbfd;
}

.b2-button--ghost {
    color: var(--b2-primary);
    background: transparent;
}

.b2-button:disabled {
    cursor: not-allowed;
    color: #9ca8b5;
    background: #e7ecf1;
    box-shadow: none;
}

.b2-eyebrow,
.b2-kicker {
    color: var(--b2-accent-dark);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.b2-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.b2-eyebrow > span {
    width: 24px;
    height: 2px;
    background: var(--b2-accent);
}

/* Landing */

.b2-landing {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.b2-hero {
    min-height: 590px;
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
    align-items: center;
    gap: clamp(48px, 8vw, 100px);
    padding: 76px 0 68px;
}

.b2-hero__copy h1 {
    max-width: 660px;
    margin: 18px 0 20px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(44px, 6vw, 70px);
    font-weight: 760;
    letter-spacing: -0.045em;
    line-height: 0.99;
}

.b2-hero__copy h1 em {
    color: var(--b2-accent);
    font-style: normal;
}

.b2-hero__lead {
    max-width: 650px;
    margin: 0;
    color: var(--b2-text);
    font-size: 18px;
    line-height: 1.7;
}

.b2-hero__facts {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
}

.b2-hero__facts span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--b2-primary);
    font-size: 13px;
    font-weight: 650;
}

.b2-hero__facts i {
    color: var(--b2-accent);
    font-size: 18px;
}

.b2-hero__actions {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.b2-hero__actions form,
.b2-result-cta__actions form {
    margin: 0;
}

.b2-privacy-note {
    margin: 17px 0 0;
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--b2-muted);
    font-size: 12px;
}

.b2-privacy-note i {
    color: var(--b2-success);
}

.b2-hero__visual {
    position: relative;
}

.b2-hero__visual::before {
    position: absolute;
    inset: 9% -11% 0 4%;
    z-index: -1;
    border-radius: 44% 56% 61% 39% / 42% 36% 64% 58%;
    background: linear-gradient(140deg, #dff5ff, #eef3f8);
    content: "";
    transform: rotate(-6deg);
}

.b2-score-preview {
    width: min(100%, 420px);
    margin: 0 auto;
    padding: 28px;
    border: 1px solid rgba(220, 228, 237, 0.9);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--b2-shadow);
}

.b2-score-preview__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.b2-score-preview__label {
    color: var(--b2-ink);
    font-size: 14px;
    font-weight: 750;
}

.b2-score-preview__status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--b2-muted);
    font-size: 11px;
    font-weight: 650;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.b2-score-preview__status i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--b2-success);
    box-shadow: 0 0 0 4px var(--b2-success-soft);
}

.b2-score-preview__ring {
    width: 156px;
    height: 156px;
    margin: 28px auto;
    padding: 12px;
    border-radius: 50%;
    background: conic-gradient(var(--b2-accent) 0 282deg, #e9eef3 282deg 360deg);
}

.b2-score-preview__ring > div {
    width: 100%;
    height: 100%;
    display: grid;
    place-content: center;
    border-radius: 50%;
    text-align: center;
    background: #fff;
}

.b2-score-preview__ring strong {
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 42px;
    line-height: 1;
}

.b2-score-preview__ring span {
    margin-top: 4px;
    color: var(--b2-muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.b2-score-preview__skills {
    display: grid;
    gap: 14px;
}

.b2-score-preview__skills > div {
    display: grid;
    grid-template-columns: 118px 1fr;
    align-items: center;
    gap: 12px;
}

.b2-score-preview__skills span {
    color: var(--b2-primary);
    font-size: 12px;
    font-weight: 650;
}

.b2-score-preview__skills i {
    position: relative;
    height: 7px;
    overflow: hidden;
    border-radius: 999px;
    background: #edf1f5;
}

.b2-score-preview__skills i::after {
    position: absolute;
    inset: 0 auto 0 0;
    width: var(--value);
    border-radius: inherit;
    background: linear-gradient(90deg, var(--b2-accent-dark), #4dc8f6);
    content: "";
}

.b2-score-preview > p {
    margin: 22px 0 0;
    padding-top: 18px;
    border-top: 1px solid var(--b2-line);
    color: var(--b2-muted);
    font-size: 12px;
    line-height: 1.55;
}

.b2-skill-grid {
    padding: 70px 0;
    border-top: 1px solid var(--b2-line);
}

.b2-section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
}

.b2-section-heading h2 {
    margin: 7px 0 0;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(28px, 4vw, 38px);
    letter-spacing: -0.03em;
}

.b2-section-heading > p {
    max-width: 480px;
    margin: 0;
    color: var(--b2-muted);
    font-size: 14px;
    line-height: 1.65;
}

.b2-skill-cards {
    margin-top: 34px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.b2-skill-cards article {
    position: relative;
    min-height: 230px;
    padding: 28px;
    overflow: hidden;
    border: 1px solid var(--b2-line);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-skill-card__icon {
    width: 46px;
    height: 46px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    color: var(--b2-accent-dark);
    background: var(--b2-sky-soft);
    font-size: 23px;
}

.b2-skill-cards small {
    position: absolute;
    top: 28px;
    right: 28px;
    color: var(--b2-muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.b2-skill-cards h3 {
    margin: 25px 0 9px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 21px;
}

.b2-skill-cards p {
    margin: 0;
    color: var(--b2-muted);
    font-size: 13px;
    line-height: 1.65;
}

.b2-method-note {
    margin: 0 0 56px;
    padding: 22px 24px;
    display: flex;
    gap: 15px;
    border: 1px solid #cfeaf6;
    border-radius: 16px;
    background: #effaff;
}

.b2-method-note > i {
    color: var(--b2-accent-dark);
    font-size: 24px;
}

.b2-method-note strong {
    color: var(--b2-primary);
    font-size: 14px;
}

.b2-method-note p {
    margin: 5px 0 0;
    font-size: 13px;
    line-height: 1.6;
}

/* Assessment */

.b2-assessment {
    min-height: calc(100vh - 152px);
}

.b2-progress {
    height: 4px;
    overflow: hidden;
    background: #dfe6ed;
}

.b2-progress span {
    height: 100%;
    display: block;
    border-radius: 0 999px 999px 0;
    background: linear-gradient(90deg, var(--b2-accent-dark), #4dc8f6);
    transition: width 250ms ease;
}

.b2-assessment__inner {
    width: min(1000px, calc(100% - 48px));
    margin: 0 auto;
    padding: 38px 0 58px;
}

.b2-question-heading {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.b2-question-heading__labels {
    display: flex;
    gap: 8px;
}

.b2-section-chip,
.b2-cefr-chip {
    min-height: 27px;
    padding: 0 10px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.b2-section-chip {
    color: #087cac;
    background: #e5f7fe;
}

.b2-section-chip--reading {
    color: #6d4fc1;
    background: #f0ebff;
}

.b2-section-chip--listening {
    color: #087c65;
    background: #e5f8f2;
}

.b2-cefr-chip {
    color: var(--b2-primary);
    background: #e9eef3;
}

.b2-construct {
    color: var(--b2-muted);
    font-size: 12px;
}

.b2-question-card {
    overflow: hidden;
    border: 1px solid var(--b2-line);
    border-radius: 22px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-question-card--with-stimulus {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.b2-question-content {
    padding: clamp(34px, 5vw, 52px);
}

.b2-question-card--with-stimulus .b2-question-content {
    padding: 42px;
}

.b2-question-number {
    display: block;
    margin-bottom: 15px;
    color: var(--b2-accent-dark);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.b2-question-content h1 {
    max-width: 790px;
    margin: 0 0 30px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(23px, 3vw, 31px);
    font-weight: 680;
    letter-spacing: -0.025em;
    line-height: 1.35;
}

.b2-gap {
    width: 68px;
    margin: 0 5px 3px;
    display: inline-block;
    border-bottom: 2px solid var(--b2-accent);
}

.b2-options {
    min-width: 0;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
    border: 0;
}

.b2-option {
    position: relative;
    min-height: 58px;
    padding: 9px 48px 9px 10px;
    border: 1px solid var(--b2-line);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 13px;
    cursor: pointer;
    color: var(--b2-primary);
    background: #fff;
    transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.b2-option:hover {
    border-color: #a9c6d6;
    background: #fbfdff;
}

.b2-option:has(input:checked) {
    border-color: var(--b2-accent);
    background: #f0faff;
    box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.1);
}

.b2-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.b2-option__letter {
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    display: grid;
    place-items: center;
    border: 1px solid #dce3ea;
    border-radius: 9px;
    color: var(--b2-muted);
    background: #f7f9fb;
    font-family: "JetBrains Mono", monospace;
    font-size: 12px;
    font-weight: 700;
}

.b2-option:has(input:checked) .b2-option__letter {
    border-color: var(--b2-accent);
    color: #fff;
    background: var(--b2-accent);
}

.b2-option__text {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.45;
}

.b2-option__check {
    position: absolute;
    right: 17px;
    opacity: 0;
    color: var(--b2-accent-dark);
    font-size: 18px;
    transform: scale(0.7);
    transition: opacity 140ms ease, transform 140ms ease;
}

.b2-option:has(input:checked) .b2-option__check {
    opacity: 1;
    transform: scale(1);
}

.b2-form-error {
    margin: -8px 0 20px;
    padding: 11px 13px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--b2-danger);
    background: var(--b2-danger-soft);
    font-size: 13px;
    font-weight: 650;
}

.b2-stimulus {
    min-width: 0;
    padding: 42px;
    color: #d7e4ef;
    background:
        linear-gradient(155deg, rgba(14, 165, 233, 0.11), transparent 40%),
        var(--b2-ink);
}

.b2-stimulus__eyebrow {
    display: block;
    margin-bottom: 8px;
    color: #78d7fa;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.b2-stimulus h2 {
    margin: 0 0 22px;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 23px;
    letter-spacing: -0.02em;
}

.b2-reading-copy {
    padding-top: 2px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.b2-reading-copy p {
    margin: 19px 0 0;
    color: #c7d5e1;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 15px;
    line-height: 1.72;
}

.b2-audio-player {
    margin-top: 28px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.07);
}

.b2-audio-player__button {
    min-height: 42px;
    padding: 0 15px;
    border: 0;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: #fff;
    background: var(--b2-accent);
    font: inherit;
    font-size: 12px;
    font-weight: 750;
}

.b2-audio-player__button:disabled {
    cursor: not-allowed;
    color: #9db0c0;
    background: #3e5367;
}

.b2-audio-player__track {
    height: 5px;
    margin: 18px 0 10px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.15);
}

.b2-audio-player__track span {
    width: 0;
    height: 100%;
    display: block;
    border-radius: inherit;
    background: #65d3fa;
}

.b2-audio-player__time,
.b2-audio-player__plays {
    color: #aebfce;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px;
}

.b2-audio-player__plays {
    float: right;
}

.b2-audio-hint {
    margin: 14px 0 0;
    display: flex;
    gap: 7px;
    color: #aebfce;
    font-size: 11px;
    line-height: 1.5;
}

.b2-question-actions {
    grid-column: 1 / -1;
    min-height: 78px;
    padding: 14px clamp(24px, 5vw, 42px);
    border-top: 1px solid var(--b2-line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: #fbfcfd;
}

.b2-save-state {
    min-width: 120px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--b2-muted);
    font-size: 12px;
}

.b2-save-state i {
    color: var(--b2-success);
    font-size: 16px;
}

.b2-save-state.is-error,
.b2-save-state.is-error i {
    color: var(--b2-danger);
}

.b2-question-actions__buttons {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Results */

.b2-results {
    width: min(1060px, calc(100% - 48px));
    margin: 0 auto;
    padding: 48px 0 8px;
}

.b2-result-hero {
    min-height: 325px;
    padding: clamp(36px, 6vw, 64px);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    color: #d6e4ef;
    background:
        radial-gradient(circle at 78% 20%, rgba(14, 165, 233, 0.26), transparent 30%),
        var(--b2-ink);
    box-shadow: var(--b2-shadow);
}

.b2-result-hero--success {
    background:
        radial-gradient(circle at 78% 20%, rgba(37, 211, 153, 0.23), transparent 30%),
        var(--b2-ink);
}

.b2-result-hero--strong {
    background:
        radial-gradient(circle at 78% 20%, rgba(37, 211, 153, 0.23), transparent 30%),
        var(--b2-ink);
}

.b2-result-hero--warning {
    background:
        radial-gradient(circle at 78% 20%, rgba(251, 191, 36, 0.2), transparent 30%),
        var(--b2-ink);
}

.b2-result-hero--likely {
    background:
        radial-gradient(circle at 78% 20%, rgba(14, 165, 233, 0.26), transparent 30%),
        var(--b2-ink);
}

.b2-result-hero--approaching {
    background:
        radial-gradient(circle at 78% 20%, rgba(251, 191, 36, 0.2), transparent 30%),
        var(--b2-ink);
}

.b2-result-hero--danger {
    background:
        radial-gradient(circle at 78% 20%, rgba(248, 113, 113, 0.18), transparent 30%),
        var(--b2-ink);
}

.b2-result-hero--building {
    background:
        radial-gradient(circle at 78% 20%, rgba(248, 113, 113, 0.18), transparent 30%),
        var(--b2-ink);
}

.b2-result-hero .b2-eyebrow {
    color: #72d6fa;
}

.b2-result-hero__copy h1 {
    max-width: 610px;
    margin: 15px 0 12px;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(34px, 5vw, 50px);
    letter-spacing: -0.035em;
    line-height: 1.05;
}

.b2-result-hero__copy > p {
    max-width: 610px;
    margin: 0;
    color: #c1d0dd;
    font-size: 15px;
    line-height: 1.65;
}

.b2-result-hero__meta {
    margin-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    color: #dbe6ee;
    font-size: 12px;
    font-weight: 650;
}

.b2-result-hero__meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.b2-result-hero__meta i {
    color: #6bd4fb;
    font-size: 17px;
}

.b2-result-score {
    width: 174px;
    height: 174px;
    flex: 0 0 174px;
    padding: 11px;
    border-radius: 50%;
    background: conic-gradient(#4bd3a0 0 var(--score), rgba(255, 255, 255, 0.14) var(--score) 360deg);
}

.b2-result-score > div {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: grid;
    place-content: center;
    text-align: center;
    background: var(--b2-ink);
}

.b2-result-score strong {
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 42px;
    line-height: 1;
}

.b2-result-score span {
    margin-top: 7px;
    color: #92a8b9;
    font-size: 10px;
    font-weight: 750;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.b2-section-results,
.b2-review {
    padding: 66px 0 0;
}

.b2-section-result-grid {
    margin-top: 28px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.b2-section-result-grid article {
    padding: 23px;
    border: 1px solid var(--b2-line);
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-section-result__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.b2-section-result__top span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--b2-primary);
    font-size: 12px;
    font-weight: 700;
}

.b2-section-result__top span i {
    color: var(--b2-accent-dark);
    font-size: 18px;
}

.b2-section-result__top strong {
    color: var(--b2-ink);
    font-family: "JetBrains Mono", monospace;
    font-size: 14px;
}

.b2-section-result__bar {
    height: 7px;
    margin-top: 18px;
    overflow: hidden;
    border-radius: 999px;
    background: #eaf0f4;
}

.b2-section-result__bar span {
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--b2-accent-dark), #4dc8f6);
}

.b2-section-result-grid article > p {
    margin: 9px 0 0;
    color: var(--b2-muted);
    font-size: 11px;
}

.b2-review-list {
    margin-top: 28px;
    border: 1px solid var(--b2-line);
    border-radius: 18px;
    overflow: hidden;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-review-item + .b2-review-item {
    border-top: 1px solid var(--b2-line);
}

.b2-review-item summary {
    min-height: 78px;
    padding: 15px 21px;
    display: grid;
    grid-template-columns: 34px 1fr auto 20px;
    align-items: center;
    gap: 14px;
    cursor: pointer;
    list-style: none;
}

.b2-review-item summary::-webkit-details-marker {
    display: none;
}

.b2-review-item summary:hover {
    background: #fbfcfd;
}

.b2-review-item__number {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    display: grid;
    place-items: center;
    color: var(--b2-primary);
    background: #eef2f5;
    font-family: "JetBrains Mono", monospace;
    font-size: 11px;
    font-weight: 750;
}

.b2-review-item__title {
    min-width: 0;
    display: grid;
    gap: 3px;
}

.b2-review-item__title small {
    color: var(--b2-muted);
    font-size: 10px;
}

.b2-review-item__title strong {
    overflow: hidden;
    color: var(--b2-primary);
    font-size: 12px;
    font-weight: 650;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.b2-review-item__status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 750;
}

.b2-review-item.is-correct .b2-review-item__status {
    color: var(--b2-success);
}

.b2-review-item.is-wrong .b2-review-item__status {
    color: var(--b2-danger);
}

.b2-review-item__status i {
    font-size: 18px;
}

.b2-review-item__caret {
    color: var(--b2-muted);
    transition: transform 150ms ease;
}

.b2-review-item[open] .b2-review-item__caret {
    transform: rotate(180deg);
}

.b2-review-item__body {
    padding: 0 68px 25px;
}

.b2-review-item__body > p {
    margin: 8px 0;
    color: var(--b2-text);
    font-size: 13px;
    line-height: 1.55;
}

.b2-review-item__body > p span {
    min-width: 112px;
    display: inline-block;
    color: var(--b2-muted);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.b2-transcript {
    margin-top: 18px;
    padding: 18px;
    border-left: 3px solid var(--b2-accent);
    border-radius: 0 10px 10px 0;
    background: #f3f8fb;
}

.b2-transcript strong {
    color: var(--b2-primary);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-transcript p {
    margin: 10px 0 0;
    color: var(--b2-text);
    font-size: 12px;
    line-height: 1.6;
}

.b2-result-cta {
    margin-top: 66px;
    padding: 38px 42px;
    border: 1px solid #cceaf6;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    background:
        radial-gradient(circle at 90% 20%, rgba(14, 165, 233, 0.12), transparent 30%),
        #f1fbff;
}

.b2-result-cta h2 {
    margin: 7px 0 8px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 27px;
    letter-spacing: -0.025em;
}

.b2-result-cta p {
    max-width: 580px;
    margin: 0;
    color: var(--b2-muted);
    font-size: 13px;
    line-height: 1.6;
}

.b2-result-cta__actions {
    flex: 0 0 auto;
    display: grid;
    gap: 9px;
}

.b2-result-cta__actions .b2-button {
    width: 100%;
}

.b2-result-disclaimer {
    margin: 25px auto 20px;
    text-align: center;
    color: var(--b2-muted);
    font-size: 11px;
}

.b2-result-disclaimer i {
    margin-right: 4px;
}

@media (max-width: 900px) {
    .b2-hero {
        grid-template-columns: 1fr;
        gap: 50px;
        padding-top: 58px;
    }

    .b2-hero__copy {
        text-align: center;
    }

    .b2-hero__copy h1,
    .b2-hero__lead {
        margin-right: auto;
        margin-left: auto;
    }

    .b2-eyebrow,
    .b2-hero__facts,
    .b2-hero__actions,
    .b2-privacy-note {
        justify-content: center;
    }

    .b2-skill-cards,
    .b2-section-result-grid {
        grid-template-columns: 1fr;
    }

    .b2-skill-cards article {
        min-height: 0;
    }

    .b2-question-card--with-stimulus {
        grid-template-columns: 1fr;
    }

    .b2-stimulus {
        padding: 34px;
    }

    .b2-result-cta {
        align-items: flex-start;
        flex-direction: column;
    }

    .b2-result-cta__actions {
        width: 100%;
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .b2-topbar__inner,
    .b2-landing,
    .b2-assessment__inner,
    .b2-results,
    .b2-footer {
        width: min(100% - 28px, 1180px);
    }

    .b2-topbar__inner {
        min-height: 68px;
    }

    .b2-brand__text span,
    .b2-question-count {
        display: none;
    }

    .b2-topbar__badge {
        padding: 7px 10px;
        font-size: 11px;
    }

    .b2-test-meta {
        gap: 8px;
    }

    .b2-timer {
        padding: 7px 9px;
        font-size: 11px;
    }

    .b2-footer {
        min-height: 94px;
        flex-wrap: wrap;
        align-content: center;
        gap: 5px 9px;
        text-align: center;
    }

    .b2-hero {
        min-height: 0;
        padding: 45px 0 52px;
    }

    .b2-hero__copy h1 {
        font-size: 43px;
    }

    .b2-hero__lead {
        font-size: 16px;
    }

    .b2-hero__facts {
        gap: 10px 15px;
    }

    .b2-hero__actions {
        display: grid;
    }

    .b2-hero__actions form,
    .b2-hero__actions .b2-button {
        width: 100%;
    }

    .b2-score-preview {
        padding: 23px;
        border-radius: 19px;
    }

    .b2-section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 13px;
    }

    .b2-skill-grid,
    .b2-section-results,
    .b2-review {
        padding-top: 48px;
    }

    .b2-method-note {
        padding: 18px;
    }

    .b2-assessment__inner {
        padding-top: 25px;
    }

    .b2-question-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }

    .b2-question-card,
    .b2-result-hero,
    .b2-review-list {
        border-radius: 16px;
    }

    .b2-question-content,
    .b2-question-card--with-stimulus .b2-question-content,
    .b2-stimulus {
        padding: 27px 20px;
    }

    .b2-question-content h1 {
        margin-bottom: 24px;
        font-size: 23px;
    }

    .b2-option {
        min-height: 56px;
        padding-right: 39px;
    }

    .b2-option__letter {
        width: 32px;
        height: 32px;
        flex-basis: 32px;
    }

    .b2-option__text {
        font-size: 13px;
    }

    .b2-option__check {
        right: 13px;
    }

    .b2-question-actions {
        padding: 14px 18px;
        align-items: stretch;
        flex-direction: column;
    }

    .b2-question-actions__buttons {
        width: 100%;
    }

    .b2-question-actions__buttons .b2-button {
        flex: 1 1 auto;
    }

    .b2-result-hero {
        padding: 36px 24px;
        align-items: flex-start;
        flex-direction: column;
    }

    .b2-result-score {
        width: 145px;
        height: 145px;
        flex-basis: 145px;
    }

    .b2-result-score strong {
        font-size: 35px;
    }

    .b2-review-item summary {
        grid-template-columns: 32px 1fr 20px;
        padding: 14px;
    }

    .b2-review-item__status {
        grid-column: 2;
        justify-self: start;
    }

    .b2-review-item__caret {
        grid-column: 3;
        grid-row: 1;
    }

    .b2-review-item__body {
        padding: 0 18px 22px;
    }

    .b2-review-item__body > p span {
        min-width: 0;
        margin-bottom: 3px;
        display: block;
    }

    .b2-result-cta {
        margin-top: 48px;
        padding: 27px 22px;
    }

    .b2-result-cta__actions {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .b2-body *,
    .b2-body *::before,
    .b2-body *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

/* B2 operational English course */

.b2-course,
.b2-unit {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.b2-course-hero {
    min-height: 500px;
    margin-top: 38px;
    padding: clamp(42px, 7vw, 74px);
    border-radius: 26px;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(350px, 0.85fr);
    align-items: center;
    gap: clamp(46px, 7vw, 90px);
    color: #d5e2ed;
    background:
        radial-gradient(circle at 87% 8%, rgba(14, 165, 233, 0.3), transparent 31%),
        linear-gradient(145deg, #17283a 0%, #1d3348 72%, #173b4e 100%);
    box-shadow: var(--b2-shadow);
}

.b2-course-hero .b2-eyebrow {
    color: #74d7fa;
}

.b2-course-beta-tag {
    padding: 4px 7px;
    border: 1px solid rgba(251, 191, 36, 0.42);
    border-radius: 999px;
    color: #fde68a;
    background: rgba(245, 158, 11, 0.14);
    font-size: 9px;
    font-weight: 850;
    letter-spacing: 0.1em;
    line-height: 1;
}

.b2-course-hero__copy h1 {
    max-width: 710px;
    margin: 18px 0;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(40px, 5.8vw, 65px);
    font-weight: 760;
    letter-spacing: -0.045em;
    line-height: 1;
}

.b2-course-hero__copy > p {
    max-width: 670px;
    margin: 0;
    color: #c0cfdb;
    font-size: 17px;
    line-height: 1.7;
}

.b2-course-hero__actions {
    margin-top: 29px;
    display: flex;
    flex-wrap: wrap;
    gap: 11px;
}

.b2-button--course-ghost {
    border-color: rgba(255, 255, 255, 0.2);
    color: #e2edf4;
    background: rgba(255, 255, 255, 0.07);
}

.b2-button--course-ghost:hover {
    border-color: rgba(255, 255, 255, 0.36);
    background: rgba(255, 255, 255, 0.12);
}

.b2-course-progress-card {
    padding: 27px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 19px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(14px);
}

.b2-course-progress-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.b2-course-progress-card__top span {
    color: #c8d6e1;
    font-size: 12px;
    font-weight: 650;
}

.b2-course-progress-card__top strong {
    color: #fff;
    font-family: "JetBrains Mono", monospace;
    font-size: 24px;
}

.b2-course-progress-card__bar {
    height: 9px;
    margin-top: 13px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.13);
}

.b2-course-progress-card__bar span {
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, #20b5ed, #70ddbd);
}

.b2-course-progress-card__stats {
    margin-top: 25px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.b2-course-progress-card__stats > div {
    min-width: 0;
    display: grid;
    gap: 4px;
}

.b2-course-progress-card__stats strong {
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 23px;
}

.b2-course-progress-card__stats span {
    color: #93a9ba;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.b2-course-progress-card > p {
    margin: 24px 0 0;
    padding-top: 17px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    display: flex;
    align-items: center;
    gap: 7px;
    color: #b2c5d3;
    font-size: 11px;
}

.b2-course-progress-card > p i {
    color: #68ddb3;
    font-size: 16px;
}

.b2-course-method,
.b2-course-map {
    padding-top: 78px;
}

.b2-course-method__grid {
    margin-top: 32px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.b2-course-method__grid article {
    position: relative;
    min-height: 204px;
    padding: 25px;
    overflow: hidden;
    border: 1px solid var(--b2-line);
    border-radius: 16px;
    background: #fff;
}

.b2-course-method__grid article > span {
    position: absolute;
    top: 18px;
    right: 19px;
    color: #dce3e9;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 32px;
    font-weight: 800;
}

.b2-course-method__grid i {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    color: var(--b2-accent-dark);
    background: var(--b2-sky-soft);
    font-size: 21px;
}

.b2-course-method__grid h3 {
    margin: 25px 0 8px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 17px;
}

.b2-course-method__grid p {
    margin: 0;
    color: var(--b2-muted);
    font-size: 12px;
    line-height: 1.6;
}

.b2-course-phases {
    margin-top: 42px;
    display: grid;
    gap: 49px;
}

.b2-course-phase__heading {
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.b2-course-phase__heading > span {
    padding: 6px 9px;
    border-radius: 7px;
    color: #087cac;
    background: #e5f7fe;
    font-family: "JetBrains Mono", monospace;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-course-phase__heading h3 {
    margin: 0;
    color: var(--b2-primary);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 20px;
}

.b2-course-unit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 17px;
}

.b2-course-unit-card {
    position: relative;
    min-height: 418px;
    padding: 26px;
    border: 1px solid var(--b2-line);
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    background: #fff;
    box-shadow: 0 9px 28px rgba(28, 50, 74, 0.055);
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.b2-course-unit-card:hover {
    border-color: #bcd3df;
    box-shadow: var(--b2-shadow-soft);
    transform: translateY(-2px);
}

.b2-course-unit-card.is-active {
    border-color: #a8dff3;
}

.b2-course-unit-card.is-complete {
    border-color: #b7e5d5;
}

.b2-course-unit-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.b2-course-unit-card__number {
    color: #b7c2cc;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.b2-course-unit-card__status {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--b2-muted);
    font-size: 9px;
    font-weight: 750;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.b2-course-unit-card__status i {
    color: var(--b2-accent);
    font-size: 14px;
}

.b2-course-unit-card__status.is-complete,
.b2-course-unit-card__status.is-complete i {
    color: var(--b2-success);
}

.b2-course-unit-card__theme {
    margin-top: 20px;
    color: var(--b2-accent-dark);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.b2-course-unit-card h4 {
    margin: 7px 0 9px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 21px;
    letter-spacing: -0.025em;
    line-height: 1.17;
}

.b2-course-unit-card > p {
    margin: 0;
    color: var(--b2-muted);
    font-size: 12px;
    line-height: 1.58;
}

.b2-course-unit-card__focus {
    margin-top: 22px;
    padding: 12px;
    border-radius: 11px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--b2-primary);
    background: #f0faf7;
}

.b2-course-unit-card__focus > i {
    margin-top: 1px;
    color: var(--b2-success);
    font-size: 18px;
}

.b2-course-unit-card__focus span {
    display: grid;
    gap: 2px;
    font-size: 11px;
    font-weight: 650;
    line-height: 1.4;
}

.b2-course-unit-card__focus small {
    color: #6e9b8c;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-course-unit-card__progress {
    margin-top: auto;
    padding-top: 22px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.b2-course-unit-card__progress > span {
    height: 5px;
    flex: 1 1 auto;
    overflow: hidden;
    border-radius: 99px;
    background: #e9eef2;
}

.b2-course-unit-card__progress i {
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--b2-accent), #4fd0a1);
}

.b2-course-unit-card__progress small {
    flex: 0 0 auto;
    color: var(--b2-muted);
    font-size: 9px;
}

.b2-course-unit-card__link {
    margin-top: 16px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--b2-accent-dark);
    font-size: 12px;
    font-weight: 750;
}

.b2-course-unit-card__link:hover {
    color: var(--b2-primary);
}

.b2-course-reset {
    margin: 48px 0;
    display: flex;
    justify-content: flex-end;
}

.b2-text-button {
    padding: 0;
    border: 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    color: var(--b2-muted);
    background: transparent;
    font: inherit;
    font-size: 11px;
    font-weight: 650;
}

.b2-text-button:hover {
    color: var(--b2-danger);
}

/* Unit lesson */

.b2-unit {
    padding-bottom: 36px;
}

.b2-unit__breadcrumb {
    min-height: 68px;
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--b2-muted);
    font-size: 11px;
}

.b2-unit__breadcrumb a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--b2-accent-dark);
    font-weight: 700;
}

.b2-unit-hero {
    min-height: 340px;
    padding: clamp(38px, 6vw, 62px);
    border-radius: 23px;
    display: grid;
    grid-template-columns: 1fr minmax(240px, 0.34fr);
    align-items: center;
    gap: 58px;
    color: #c8d6e1;
    background:
        radial-gradient(circle at 85% 20%, rgba(14, 165, 233, 0.24), transparent 28%),
        var(--b2-ink);
    box-shadow: var(--b2-shadow);
}

.b2-unit-hero__number,
.b2-unit-hero__theme {
    display: inline-block;
    color: #6fd4fa;
    font-family: "JetBrains Mono", monospace;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.b2-unit-hero__theme {
    margin-left: 13px;
    padding-left: 13px;
    border-left: 1px solid rgba(255, 255, 255, 0.22);
    color: #9eb2c1;
}

.b2-unit-hero h1 {
    max-width: 750px;
    margin: 17px 0 13px;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(36px, 5vw, 54px);
    letter-spacing: -0.04em;
    line-height: 1.03;
}

.b2-unit-hero > div:first-child > p {
    max-width: 720px;
    margin: 0;
    color: #bdcdd9;
    font-size: 15px;
    line-height: 1.65;
}

.b2-unit-hero__skills {
    margin-top: 23px;
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.b2-unit-hero__skills span {
    padding: 7px 10px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 999px;
    color: #dbe6ee;
    background: rgba(255, 255, 255, 0.06);
    font-size: 9px;
    font-weight: 700;
}

.b2-unit-hero__focus {
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 17px;
    display: grid;
    background: rgba(255, 255, 255, 0.07);
}

.b2-unit-hero__focus i {
    color: #64ddae;
    font-size: 27px;
}

.b2-unit-hero__focus span {
    margin-top: 17px;
    color: #88a0b2;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.b2-unit-hero__focus strong {
    margin-top: 5px;
    color: #fff;
    font-size: 15px;
    line-height: 1.45;
}

.b2-unit-layout {
    padding-top: 50px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 315px;
    align-items: start;
    gap: 38px;
}

.b2-unit-content {
    min-width: 0;
    display: grid;
    gap: 18px;
}

.b2-unit-section {
    padding: clamp(28px, 4vw, 42px);
    border: 1px solid var(--b2-line);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 8px 28px rgba(28, 50, 74, 0.045);
}

.b2-unit-section__heading {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.b2-unit-section__heading > span {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    color: var(--b2-accent-dark);
    background: var(--b2-sky-soft);
    font-family: "JetBrains Mono", monospace;
    font-size: 10px;
    font-weight: 800;
}

.b2-unit-section__heading small {
    color: var(--b2-accent-dark);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.b2-unit-section__heading h2 {
    margin: 3px 0 0;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 25px;
    letter-spacing: -0.025em;
}

.b2-unit-section__lead {
    margin: 24px 0 0 49px;
    color: var(--b2-text);
    font-size: 14px;
    line-height: 1.7;
}

.b2-objectives {
    margin: 25px 0 0 49px;
    padding: 0;
    display: grid;
    gap: 12px;
    list-style: none;
}

.b2-objectives li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--b2-text);
    font-size: 13px;
    line-height: 1.55;
}

.b2-objectives i {
    margin-top: 2px;
    color: var(--b2-success);
    font-size: 17px;
}

.b2-unit-reading {
    margin: 25px 0 0 49px;
    padding: 25px 28px;
    border-left: 3px solid var(--b2-accent);
    border-radius: 0 13px 13px 0;
    background: #f4f8fb;
}

.b2-unit-reading p {
    margin: 0;
    color: #35465a;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 15px;
    line-height: 1.78;
}

.b2-unit-reading p + p {
    margin-top: 16px;
}

.b2-language-patterns {
    margin: 25px 0 0 49px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.b2-language-patterns article {
    padding: 17px;
    border: 1px solid var(--b2-line);
    border-radius: 12px;
}

.b2-language-patterns span {
    color: var(--b2-accent-dark);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.b2-language-patterns p {
    margin: 8px 0 0;
    color: var(--b2-primary);
    font-size: 12px;
    font-weight: 650;
    line-height: 1.5;
}

.b2-language-watch {
    margin: 13px 0 0 49px;
    padding: 14px 16px;
    border-radius: 11px;
    display: flex;
    gap: 10px;
    background: var(--b2-warning-soft);
}

.b2-language-watch > i {
    color: var(--b2-warning);
    font-size: 20px;
}

.b2-language-watch strong {
    color: #8a570e;
    font-size: 10px;
    text-transform: uppercase;
}

.b2-language-watch p {
    margin: 3px 0 0;
    color: #785d36;
    font-size: 11px;
    line-height: 1.5;
}

.b2-vocabulary-grid {
    margin: 25px 0 0 49px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.b2-vocabulary-grid article {
    padding: 18px;
    border: 1px solid var(--b2-line);
    border-radius: 12px;
}

.b2-vocabulary-grid strong {
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 15px;
}

.b2-vocabulary-grid p {
    margin: 6px 0 10px;
    color: var(--b2-text);
    font-size: 11px;
    line-height: 1.5;
}

.b2-vocabulary-grid small {
    display: block;
    color: var(--b2-muted);
    font-size: 10px;
    font-style: italic;
    line-height: 1.5;
}

.b2-acronym-panel {
    margin: 20px 0 0 49px;
    padding: 23px;
    border-radius: 15px;
    color: #d7e3ec;
    background:
        radial-gradient(circle at 90% 10%, rgba(14, 165, 233, 0.18), transparent 34%),
        var(--b2-ink);
}

.b2-acronym-panel__heading {
    display: flex;
    align-items: center;
    gap: 11px;
}

.b2-acronym-panel__heading > i {
    color: #65d4fa;
    font-size: 24px;
}

.b2-acronym-panel__heading small {
    color: #829bac;
    font-size: 8px;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.b2-acronym-panel__heading h3 {
    margin: 2px 0 0;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 18px;
}

.b2-acronym-panel__grid {
    margin-top: 18px;
    display: grid;
    gap: 9px;
}

.b2-acronym-panel__grid article {
    padding: 13px 14px;
    border: 1px solid rgba(255, 255, 255, 0.11);
    border-radius: 10px;
    display: grid;
    grid-template-columns: minmax(80px, auto) 1fr;
    align-items: baseline;
    gap: 5px 13px;
    background: rgba(255, 255, 255, 0.05);
}

.b2-acronym-panel__grid strong {
    color: #71d7fb;
    font-family: "JetBrains Mono", monospace;
    font-size: 13px;
}

.b2-acronym-panel__grid span {
    color: #fff;
    font-size: 12px;
    font-weight: 650;
}

.b2-acronym-panel__grid p {
    grid-column: 2;
    margin: 0;
    color: #93a8b8;
    font-size: 10px;
    line-height: 1.45;
}

.b2-production-task {
    margin: 25px 0 0 49px;
    padding: 24px;
    border: 1px solid #ccebf7;
    border-radius: 14px;
    background: #effaff;
}

.b2-production-task > p {
    margin: 0;
    color: var(--b2-primary);
    font-size: 14px;
    font-weight: 650;
    line-height: 1.65;
}

.b2-production-task ul {
    margin: 18px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.b2-production-task li {
    padding: 7px 9px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--b2-text);
    background: #fff;
    font-size: 9px;
    font-weight: 650;
}

.b2-production-task i {
    color: var(--b2-success);
}

.b2-unit-aside {
    position: sticky;
    top: 22px;
    display: grid;
    gap: 14px;
}

.b2-unit-practice-card {
    padding: 27px;
    border: 1px solid var(--b2-line);
    border-radius: 17px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-unit-practice-card h2 {
    margin: 8px 0 9px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 24px;
    letter-spacing: -0.025em;
}

.b2-unit-practice-card > p {
    margin: 0;
    color: var(--b2-muted);
    font-size: 11px;
    line-height: 1.55;
}

.b2-unit-practice-card__score {
    margin-top: 22px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.b2-unit-practice-card__score > div {
    padding: 12px;
    border-radius: 10px;
    display: grid;
    gap: 2px;
    background: #f4f7f9;
}

.b2-unit-practice-card__score strong {
    color: var(--b2-ink);
    font-family: "JetBrains Mono", monospace;
    font-size: 18px;
}

.b2-unit-practice-card__score span {
    color: var(--b2-muted);
    font-size: 8px;
    font-weight: 750;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.b2-unit-practice-card__bar {
    height: 6px;
    margin: 15px 0 20px;
    overflow: hidden;
    border-radius: 99px;
    background: #e9eef2;
}

.b2-unit-practice-card__bar span {
    height: 100%;
    display: block;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--b2-accent), #4fd0a1);
}

.b2-unit-practice-card .b2-button {
    width: 100%;
}

.b2-unit-practice-card form {
    margin-top: 15px;
    text-align: center;
}

.b2-unit-nav {
    padding: 21px;
    border: 1px solid var(--b2-line);
    border-radius: 15px;
    display: grid;
    gap: 8px;
    background: #fff;
}

.b2-unit-nav > span {
    margin-bottom: 5px;
    color: var(--b2-muted);
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.b2-unit-nav a {
    padding: 11px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    color: var(--b2-primary);
    background: #f5f8fa;
    font-size: 10px;
    font-weight: 700;
}

.b2-unit-nav a:hover {
    background: #edf6fa;
}

.b2-unit-nav a > span {
    display: grid;
    gap: 1px;
}

.b2-unit-nav small {
    color: var(--b2-muted);
    font-size: 7px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

/* Unit practice */

.b2-training-practice {
    min-height: calc(100vh - 152px);
}

.b2-training-practice__inner {
    width: min(920px, calc(100% - 48px));
    margin: 0 auto;
    padding: 28px 0 56px;
}

.b2-training-practice__crumbs {
    min-height: 35px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: var(--b2-muted);
    font-size: 10px;
}

.b2-training-practice__crumbs a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--b2-accent-dark);
    font-weight: 700;
}

.b2-training-card {
    overflow: hidden;
    border: 1px solid var(--b2-line);
    border-radius: 20px;
    background: #fff;
    box-shadow: var(--b2-shadow-soft);
}

.b2-training-card--with-audio {
    display: grid;
    grid-template-columns: minmax(310px, 0.82fr) minmax(0, 1.18fr);
}

.b2-training-audio {
    padding: 38px;
    color: #d3e0ea;
    background:
        linear-gradient(150deg, rgba(14, 165, 233, 0.12), transparent 40%),
        var(--b2-ink);
}

.b2-training-audio h2 {
    margin: 7px 0 0;
    color: #fff;
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: 25px;
}

.b2-training-question {
    padding: clamp(34px, 5vw, 48px);
}

.b2-training-question h1 {
    margin: 0 0 28px;
    color: var(--b2-ink);
    font-family: "Inter Tight", Inter, sans-serif;
    font-size: clamp(23px, 3.2vw, 31px);
    font-weight: 680;
    letter-spacing: -0.025em;
    line-height: 1.35;
}

.b2-training-card .b2-question-actions {
    grid-column: 1 / -1;
}

.b2-option.is-correct,
.b2-option.is-correct:has(input:checked) {
    border-color: #53bc94;
    background: var(--b2-success-soft);
    box-shadow: 0 0 0 2px rgba(19, 138, 100, 0.08);
}

.b2-option.is-correct .b2-option__letter {
    border-color: var(--b2-success);
    color: #fff;
    background: var(--b2-success);
}

.b2-option.is-correct:has(input:checked) .b2-option__letter {
    border-color: var(--b2-success);
    color: #fff;
    background: var(--b2-success);
}

.b2-option.is-correct .b2-option__check {
    opacity: 1;
    color: var(--b2-success);
    transform: scale(1);
}

.b2-option.is-wrong,
.b2-option.is-wrong:has(input:checked) {
    border-color: #df8f8a;
    background: var(--b2-danger-soft);
    box-shadow: 0 0 0 2px rgba(194, 65, 59, 0.06);
}

.b2-option.is-wrong .b2-option__letter {
    border-color: var(--b2-danger);
    color: #fff;
    background: var(--b2-danger);
}

.b2-option.is-wrong:has(input:checked) .b2-option__letter {
    border-color: var(--b2-danger);
    color: #fff;
    background: var(--b2-danger);
}

.b2-option.is-wrong .b2-option__check {
    opacity: 1;
    color: var(--b2-danger);
    transform: scale(1);
}

.b2-training-feedback {
    margin-top: 21px;
    padding: 16px;
    border-radius: 12px;
    display: flex;
    gap: 11px;
}

.b2-training-feedback.is-correct {
    color: #246d56;
    background: var(--b2-success-soft);
}

.b2-training-feedback.is-wrong {
    color: #8b4a18;
    background: var(--b2-warning-soft);
}

.b2-training-feedback > i {
    font-size: 22px;
}

.b2-training-feedback strong {
    color: inherit;
    font-size: 12px;
}

.b2-training-feedback p {
    margin: 4px 0 0;
    color: inherit;
    font-size: 11px;
    line-height: 1.55;
}

.b2-training-transcript {
    margin-top: 11px;
    border: 1px solid var(--b2-line);
    border-radius: 10px;
    background: #f8fafb;
}

.b2-training-transcript summary {
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    color: var(--b2-primary);
    font-size: 10px;
    font-weight: 750;
}

.b2-training-transcript p {
    margin: 0;
    padding: 0 14px 14px;
    color: var(--b2-text);
    font-size: 11px;
    line-height: 1.6;
}

@media (max-width: 1000px) {
    .b2-course-hero {
        grid-template-columns: 1fr;
    }

    .b2-course-method__grid {
        grid-template-columns: 1fr 1fr;
    }

    .b2-course-unit-grid {
        grid-template-columns: 1fr 1fr;
    }

    .b2-unit-layout {
        grid-template-columns: 1fr;
    }

    .b2-unit-aside {
        position: static;
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 760px) {
    .b2-course,
    .b2-unit,
    .b2-training-practice__inner {
        width: min(100% - 28px, 1180px);
    }

    .b2-course-hero {
        margin-top: 14px;
        padding: 34px 23px;
        border-radius: 18px;
    }

    .b2-course-hero__copy h1 {
        font-size: 42px;
    }

    .b2-course-hero__copy > p {
        font-size: 15px;
    }

    .b2-course-hero__actions {
        display: grid;
    }

    .b2-course-hero__actions .b2-button {
        width: 100%;
    }

    .b2-course-progress-card__stats {
        gap: 7px;
    }

    .b2-course-progress-card__stats strong {
        font-size: 19px;
    }

    .b2-course-method,
    .b2-course-map {
        padding-top: 54px;
    }

    .b2-course-method__grid,
    .b2-course-unit-grid {
        grid-template-columns: 1fr;
    }

    .b2-course-method__grid article {
        min-height: 0;
    }

    .b2-course-unit-card {
        min-height: 0;
    }

    .b2-unit__breadcrumb {
        min-height: 54px;
    }

    .b2-unit-hero {
        padding: 34px 24px;
        grid-template-columns: 1fr;
        gap: 27px;
    }

    .b2-unit-hero h1 {
        font-size: 37px;
    }

    .b2-unit-layout {
        padding-top: 28px;
    }

    .b2-unit-section {
        padding: 25px 19px;
    }

    .b2-unit-section__heading h2 {
        font-size: 21px;
    }

    .b2-unit-section__lead,
    .b2-objectives,
    .b2-unit-reading,
    .b2-language-patterns,
    .b2-language-watch,
    .b2-vocabulary-grid,
    .b2-acronym-panel,
    .b2-production-task {
        margin-left: 0;
    }

    .b2-language-patterns,
    .b2-vocabulary-grid {
        grid-template-columns: 1fr;
    }

    .b2-acronym-panel__grid article {
        grid-template-columns: 1fr;
    }

    .b2-acronym-panel__grid p {
        grid-column: 1;
    }

    .b2-unit-aside {
        grid-template-columns: 1fr;
    }

    .b2-training-card--with-audio {
        grid-template-columns: 1fr;
    }

    .b2-training-audio {
        padding: 27px 20px;
    }

    .b2-training-question {
        padding: 29px 20px;
    }

    .b2-training-practice__crumbs {
        align-items: flex-start;
        flex-direction: column;
    }
}