:root {
    --tss-accent: #bf3823;
    --tss-ink: #27231f;
    --tss-muted: #6e665e;
    --tss-border: #d8d0c4;
    --tss-paper: #f7f3ec;
    --tss-white: #ffffff;
}

.tss-container {
    width: min(1120px, calc(100% - 40px));
    margin-inline: auto;
}

.tss-shiki-intro,
.tss-course-entry,
.tss-school {
    color: var(--tss-ink);
    font-family: 'Noto Serif JP', serif;
}

.tss-shiki-intro {
    padding: 72px 0 24px;
    background: var(--tss-white);
}

.tss-shiki-intro__inner {
    max-width: 820px;
    text-align: center;
}

.tss-shiki-intro h2,
.tss-course-entry h2,
.tss-school h1,
.tss-school h2,
.tss-school h3 {
    text-wrap: balance;
}

.tss-shiki-intro p,
.tss-course-entry p,
.tss-school p,
.tss-school li,
.tss-school dd {
    text-wrap: pretty;
}

.tss-shiki-intro h2,
.tss-course-entry h2 {
    margin: 8px 0 24px;
    font-size: clamp(26px, 3.3vw, 40px);
    font-weight: 500;
    line-height: 1.5;
}

.tss-shiki-intro p,
.tss-course-entry .tss-lead {
    font-size: 16px;
    line-height: 2;
}

.tss-eyebrow {
    color: var(--tss-accent);
    font-size: 13px;
    font-weight: 600;
}

.tss-status {
    display: inline-block;
    margin-bottom: 16px;
    padding: 7px 10px;
    color: #74450a;
    border: 1px solid #c9a266;
    background: #fff8e8;
    font-size: 13px;
    font-weight: 600;
}

.tss-course-entry {
    padding: 72px 0 88px;
    border-top: 1px solid var(--tss-border);
    background: var(--tss-paper);
    text-align: center;
}

.tss-course-entry .tss-lead,
.tss-course-entry .tss-progress {
    max-width: 760px;
    margin-inline: auto;
}

.tss-fee {
    margin: 24px 0 0;
    color: var(--tss-muted);
}

.tss-button {
    display: inline-flex;
    min-height: 48px;
    margin-top: 28px;
    padding: 12px 24px;
    align-items: center;
    justify-content: center;
    color: var(--tss-white);
    border: 1px solid var(--tss-accent);
    border-radius: 2px;
    background: var(--tss-accent);
    font: inherit;
    font-size: 15px;
    line-height: 1.5;
    text-decoration: none;
}

.tss-button:hover {
    color: var(--tss-accent);
    background: var(--tss-white);
}

.tss-button:focus-visible,
.tss-text-link:focus-visible,
.tss-breadcrumb a:focus-visible,
.tss-lesson-nav a:focus-visible,
.tss-legal a:focus-visible {
    outline: 3px solid var(--tss-accent);
    outline-offset: 4px;
}

.tss-button--secondary {
    color: var(--tss-accent);
    background: var(--tss-white);
}

.tss-button--secondary:hover {
    color: var(--tss-white);
    background: var(--tss-accent);
}

.tss-school-hero,
.tss-lesson-hero {
    padding: 84px 0 72px;
    border-bottom: 1px solid var(--tss-border);
    background: var(--tss-paper);
    text-align: center;
}

.tss-school-hero h1,
.tss-lesson-hero h1 {
    margin: 10px 0 20px;
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 500;
    line-height: 1.45;
}

.tss-school .tss-lead {
    max-width: 760px;
    margin-inline: auto;
    font-size: 17px;
    line-height: 2;
}

.tss-duration {
    margin-top: 18px;
    color: var(--tss-muted);
    font-size: 14px;
}

.tss-section {
    padding: 80px 0;
    background: var(--tss-white);
}

.tss-section--quiet,
.tss-curriculum {
    background: var(--tss-paper);
}

.tss-section h2 {
    margin: 8px 0 28px;
    font-size: clamp(25px, 3vw, 38px);
    font-weight: 500;
    line-height: 1.5;
}

.tss-section p {
    margin-top: 18px;
    font-size: 16px;
    line-height: 2;
}

.tss-two-column {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
    gap: 64px;
    align-items: start;
}

.tss-enrollment {
    padding: 28px;
    border: 1px solid var(--tss-border);
    background: var(--tss-white);
}

.tss-enrollment h3 {
    margin-bottom: 18px;
    font-size: 21px;
    font-weight: 500;
}

.tss-enrollment dl > div {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 12px;
    padding: 12px 0;
    border-top: 1px solid var(--tss-border);
}

.tss-enrollment dt {
    color: var(--tss-muted);
}

.tss-enrollment dd {
    margin: 0;
}

.tss-legal {
    margin-top: 20px !important;
    font-size: 13px !important;
}

.tss-legal a,
.tss-text-link,
.tss-breadcrumb a,
.tss-lesson-nav a {
    color: var(--tss-accent);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.tss-application label {
    display: flex;
    margin-top: 20px;
    gap: 10px;
    align-items: flex-start;
    font-size: 14px;
    line-height: 1.7;
}

.tss-application input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 3px;
}

.tss-message {
    padding: 28px;
    border-left: 3px solid var(--tss-accent);
    background: var(--tss-paper);
}

.tss-message h2 {
    margin-top: 0;
}

.tss-lesson-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin-top: 36px;
    border: 1px solid var(--tss-border);
    background: var(--tss-border);
}

.tss-lesson-card {
    min-height: 270px;
    padding: 28px;
    background: var(--tss-white);
}

.tss-lesson-card--intro {
    grid-column: 1 / -1;
    min-height: auto;
}

.tss-lesson-card__meta {
    display: flex;
    min-height: 25px;
    justify-content: space-between;
    gap: 16px;
    color: var(--tss-accent);
    font-size: 13px;
    font-weight: 600;
}

.tss-complete {
    color: #2f6a45;
}

.tss-lesson-card h3 {
    margin: 16px 0 12px;
    font-size: 21px;
    font-weight: 500;
    line-height: 1.6;
}

.tss-lesson-card p {
    margin: 0 0 22px;
    color: var(--tss-muted);
    font-size: 14px;
    line-height: 1.85;
}

.tss-locked {
    color: var(--tss-muted);
    font-size: 13px;
}

.tss-progress {
    margin: 26px 0;
}

.tss-progress__labels {
    display: flex;
    margin-bottom: 8px;
    justify-content: space-between;
    color: var(--tss-muted);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}

.tss-progress progress,
.tss-lesson-sidebar progress {
    width: 100%;
    height: 12px;
    overflow: hidden;
    border: 0;
    border-radius: 0;
    background: #e5ded3;
}

.tss-progress progress::-webkit-progress-bar,
.tss-lesson-sidebar progress::-webkit-progress-bar {
    background: #e5ded3;
}

.tss-progress progress::-webkit-progress-value,
.tss-lesson-sidebar progress::-webkit-progress-value {
    background: var(--tss-accent);
}

.tss-progress progress::-moz-progress-bar,
.tss-lesson-sidebar progress::-moz-progress-bar {
    background: var(--tss-accent);
}

.tss-steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    counter-reset: tss-step;
}

.tss-steps li {
    counter-increment: tss-step;
    padding-top: 18px;
    border-top: 2px solid var(--tss-accent);
}

.tss-steps strong,
.tss-steps span {
    display: block;
}

.tss-steps strong::before {
    content: counter(tss-step) ". ";
    color: var(--tss-accent);
}

.tss-steps span {
    margin-top: 10px;
    color: var(--tss-muted);
    font-size: 14px;
    line-height: 1.8;
}

.tss-breadcrumb {
    display: flex;
    margin-bottom: 28px;
    justify-content: center;
    gap: 10px;
    color: var(--tss-muted);
    font-size: 13px;
}

.tss-lesson-layout {
    display: grid;
    grid-template-columns: minmax(0, 760px) minmax(220px, 1fr);
    gap: 72px;
    padding-top: 72px;
    padding-bottom: 72px;
    align-items: start;
}

.tss-lesson-content {
    min-width: 0;
    font-size: 16px;
    line-height: 2;
}

.tss-lesson-content > h2 {
    margin: 72px 0 24px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--tss-border);
    font-size: 28px;
    font-weight: 500;
    line-height: 1.55;
}

.tss-lesson-content > h3 {
    margin: 44px 0 18px;
    font-size: 21px;
    font-weight: 600;
    line-height: 1.65;
}

.tss-lesson-content > p,
.tss-lesson-content > ul,
.tss-lesson-content > ol,
.tss-lesson-content > blockquote {
    margin: 18px 0;
}

.tss-lesson-content > ul,
.tss-lesson-content > ol {
    padding-left: 1.5em;
}

.tss-lesson-content > ul {
    list-style: disc;
}

.tss-lesson-content > ol {
    list-style: decimal;
}

.tss-lesson-content > .tss-choices {
    padding-left: 0;
    list-style: none;
}

.tss-choices li {
    padding: 10px 14px;
    border: 1px solid var(--tss-border);
    background: var(--tss-white);
}

.tss-lesson-content li + li {
    margin-top: 10px;
}

.tss-lesson-content blockquote {
    padding: 18px 22px;
    border-left: 3px solid var(--tss-accent);
    background: var(--tss-paper);
}

.tss-lesson-content hr {
    margin: 56px 0;
    border: 0;
    border-top: 1px solid var(--tss-border);
}

.tss-table-wrap {
    width: 100%;
    max-width: 100%;
    margin: 28px 0;
    overflow-x: auto;
    border: 1px solid var(--tss-border);
}

.tss-table-wrap table {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    background: var(--tss-white);
    font-size: 14px;
    line-height: 1.7;
}

.tss-table-wrap th,
.tss-table-wrap td {
    padding: 13px 15px;
    border-right: 1px solid var(--tss-border);
    border-bottom: 1px solid var(--tss-border);
    text-align: left;
    vertical-align: top;
}

.tss-table-wrap th {
    background: var(--tss-paper);
    font-weight: 600;
}

.tss-table-wrap tr:last-child td {
    border-bottom: 0;
}

.tss-table-wrap th:last-child,
.tss-table-wrap td:last-child {
    border-right: 0;
}

.tss-learning-note,
.tss-completion {
    padding: 28px;
    border: 1px solid var(--tss-border);
    background: var(--tss-paper);
}

.tss-learning-note h2,
.tss-completion h2 {
    margin: 0 0 12px;
    font-size: 20px;
    font-weight: 600;
}

.tss-learning-note p,
.tss-completion p {
    margin: 0;
    font-size: 14px;
    line-height: 1.9;
}

.tss-completion {
    margin-top: 72px;
}

.tss-lesson-sidebar {
    position: sticky;
    top: 28px;
    padding: 24px;
    border: 1px solid var(--tss-border);
}

.tss-lesson-sidebar p {
    margin: 20px 0 8px;
    color: var(--tss-muted);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}

.tss-lesson-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    padding-top: 36px;
    padding-bottom: 96px;
    border-top: 1px solid var(--tss-border);
}

.tss-lesson-nav > div:last-child {
    text-align: right;
}

.tss-lesson-nav span {
    display: block;
    margin-bottom: 8px;
    color: var(--tss-muted);
    font-size: 12px;
}

@media screen and (max-width: 900px) {
    .tss-two-column,
    .tss-lesson-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .tss-lesson-sidebar {
        position: static;
    }
}

@media screen and (max-width: 640px) {
    .tss-container {
        width: min(calc(100% - 28px), 1120px);
    }

    .tss-shiki-intro,
    .tss-course-entry,
    .tss-section,
    .tss-school-hero,
    .tss-lesson-hero {
        padding-top: 52px;
        padding-bottom: 52px;
    }

    .tss-lesson-grid,
    .tss-steps,
    .tss-lesson-nav {
        grid-template-columns: 1fr;
    }

    .tss-lesson-card--intro {
        grid-column: auto;
    }

    .tss-lesson-card {
        min-height: auto;
        padding: 24px;
    }

    .tss-lesson-layout {
        padding-top: 48px;
        padding-bottom: 48px;
    }

    .tss-lesson-content > h2 {
        margin-top: 52px;
        font-size: 24px;
    }

    .tss-lesson-nav > div:last-child {
        text-align: left;
    }
}

@media print {
    .tss-lesson-sidebar,
    .tss-lesson-nav,
    .tss-completion,
    .l-header,
    .l-footer {
        display: none !important;
    }

    .tss-lesson-layout {
        display: block;
    }
}