:root {
    --catalog-ink: oklch(0.96 0.01 250);
    --catalog-copy: oklch(0.78 0.018 285);
    --catalog-muted: oklch(0.64 0.025 280);
    --catalog-line: oklch(0.31 0.025 275);
    --catalog-surface: oklch(0.145 0.018 275);
    --catalog-surface-raised: oklch(0.19 0.028 275);
    --catalog-cyan: oklch(0.88 0.16 185);
    --catalog-green: oklch(0.84 0.18 155);
    --catalog-violet: oklch(0.76 0.15 305);
}

.themes-by-container,
.catalog-section {
    width: min(100% - 48px, 1180px);
    margin-inline: auto;
    color: var(--catalog-copy);
}

.themes-by-container {
    position: relative;
    isolation: isolate;
    padding-block: clamp(48px, 7vw, 96px) clamp(72px, 9vw, 120px);
}

.themes-by-container::before {
    content: "";
    position: absolute;
    z-index: -1;
    top: 3%;
    right: -12%;
    width: min(48vw, 560px);
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, oklch(0.72 0.16 280 / 0.16), transparent 68%);
    pointer-events: none;
}

.catalog-eyebrow,
.catalog-section-heading > p,
.catalog-next-label {
    margin: 0 0 14px;
    color: var(--catalog-cyan);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.025em;
}

.themes-by-container h1 {
    margin: 0;
    color: var(--catalog-ink);
    font-size: clamp(2.25rem, 5.8vw, 4.5rem);
    line-height: 1.02;
    letter-spacing: -0.045em;
    text-wrap: balance;
}

.catalog-lead {
    max-width: 720px;
    margin: 26px 0 0;
    color: var(--catalog-copy);
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.65;
}

.work-type-wrapper {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    width: 100%;
    margin: clamp(42px, 6vw, 72px) 0 0;
    padding: 0;
    list-style: none;
}

.work-type-wrapper li {
    min-width: 0;
    border: 1px solid var(--catalog-line);
    border-radius: 18px;
    background: var(--catalog-surface);
    overflow: hidden;
}

.work-type-wrapper li:nth-child(1) {
    --card-accent: var(--catalog-cyan);
}

.work-type-wrapper li:nth-child(2) {
    --card-accent: var(--catalog-green);
}

.work-type-wrapper li:nth-child(3) {
    --card-accent: var(--catalog-violet);
}

.type-container {
    display: grid;
    grid-template-rows: auto auto 1fr auto auto;
    align-items: start;
    min-height: 286px;
    height: 100%;
    padding: clamp(22px, 3vw, 32px);
    color: var(--catalog-copy);
    text-decoration: none;
    background: radial-gradient(circle at 100% 0%, color-mix(in oklch, var(--card-accent) 15%, transparent), transparent 43%);
    transition: background-color 180ms cubic-bezier(0.22, 1, 0.36, 1),
                transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.type-container:hover {
    background-color: var(--catalog-surface-raised);
    transform: translateY(-4px);
}

.type-container:focus-visible,
.catalog-cta:focus-visible,
.catalog-scope-copy a:focus-visible,
.faq-list a:focus-visible,
.faq-list summary:focus-visible {
    outline: 3px solid var(--catalog-cyan);
    outline-offset: 4px;
}

.type-index {
    justify-self: end;
    color: var(--card-accent);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.type-name {
    margin-top: 14px;
    color: var(--catalog-ink);
    font-size: clamp(1.65rem, 3vw, 2.2rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.025em;
}

.type-container p {
    max-width: 34ch;
    margin: 15px 0 24px;
    font-size: 0.98rem;
    line-height: 1.6;
}

.type-meta {
    width: fit-content;
    margin-top: auto;
    padding: 7px 11px;
    border-radius: 999px;
    color: var(--catalog-ink);
    background: color-mix(in oklch, var(--card-accent) 14%, transparent);
    font-size: 0.86rem;
    font-weight: 600;
}

.type-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 28px;
    padding-top: 18px;
    border-top: 1px solid var(--catalog-line);
    color: var(--catalog-ink);
    font-size: 0.94rem;
    font-weight: 600;
}

.type-action span {
    color: var(--card-accent);
    font-size: 1.35rem;
    line-height: 1;
    transition: transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.type-container:hover .type-action span {
    transform: translateX(4px);
}

.catalog-section {
    padding-block: clamp(64px, 9vw, 112px);
    border-top: 1px solid var(--catalog-line);
}

.catalog-section-heading {
    display: grid;
    grid-template-columns: minmax(180px, 0.7fr) minmax(0, 1.4fr);
    gap: clamp(24px, 5vw, 72px);
    align-items: start;
}

.catalog-section-heading > p {
    margin-top: 8px;
}

.catalog-section h2 {
    margin: 0;
    color: var(--catalog-ink);
    font-size: clamp(1.8rem, 3.8vw, 3.1rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
    text-wrap: balance;
}

.catalog-guide {
    display: grid;
    grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
    gap: clamp(48px, 9vw, 132px);
    align-items: start;
}

.catalog-guide-intro {
    position: sticky;
    top: 32px;
    max-width: 430px;
}

.guide-kicker {
    margin: 0 0 16px;
    color: var(--catalog-cyan);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.025em;
}

.catalog-guide-lead {
    max-width: 38ch;
    margin: 26px 0 0;
    color: var(--catalog-copy);
    font-size: 1rem;
    line-height: 1.72;
}

.theme-checklist {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--catalog-line);
    list-style: none;
}

.theme-check {
    --step-accent: var(--catalog-cyan);
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: clamp(16px, 3vw, 30px);
    padding-block: clamp(28px, 5vw, 48px);
    border-bottom: 1px solid var(--catalog-line);
}

.theme-check-scope {
    --step-accent: var(--catalog-green);
}

.theme-check-wording {
    --step-accent: var(--catalog-violet);
}

.theme-check-index {
    padding-top: 5px;
    color: var(--step-accent);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.theme-check h3 {
    margin: 0;
    color: var(--catalog-ink);
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    line-height: 1.28;
    letter-spacing: -0.018em;
    text-wrap: balance;
}

.theme-check-content > p {
    max-width: 62ch;
    margin: 14px 0 0;
    color: var(--catalog-copy);
    font-size: 0.98rem;
    line-height: 1.68;
}

.assignment-brief,
.scope-meter,
.topic-formula {
    margin-top: 26px;
    padding: 16px 18px;
    border: 1px solid color-mix(in oklch, var(--step-accent) 25%, var(--catalog-line));
    border-radius: 10px;
    background: color-mix(in oklch, var(--step-accent) 7%, var(--catalog-surface));
}

.assignment-brief,
.topic-formula {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 14px;
}

.assignment-brief span,
.topic-formula span,
.topic-formula strong {
    color: var(--catalog-ink);
    font-size: 0.9rem;
    font-weight: 600;
}

.assignment-brief b,
.topic-formula b {
    color: var(--step-accent);
    font-size: 1rem;
    font-weight: 700;
}

.topic-formula strong {
    padding: 5px 9px;
    border-radius: 6px;
    color: oklch(0.17 0.025 290);
    background: var(--step-accent);
}

.scope-meter {
    padding-block: 18px;
}

.scope-meter-labels {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: end;
    color: var(--catalog-muted);
    font-size: 0.76rem;
}

.scope-meter-labels strong {
    color: var(--catalog-ink);
    font-size: 0.84rem;
    font-weight: 700;
    text-align: center;
}

.scope-meter-labels span:last-child {
    text-align: right;
}

.scope-meter-track {
    position: relative;
    height: 3px;
    margin-top: 14px;
    border-radius: 999px;
    background: var(--catalog-line);
}

.scope-meter-track::before,
.scope-meter-track::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 7px;
    height: 7px;
    border: 1px solid var(--catalog-muted);
    border-radius: 50%;
    background: var(--catalog-surface);
    transform: translateY(-50%);
}

.scope-meter-track::before {
    left: 0;
}

.scope-meter-track::after {
    right: 0;
}

.scope-meter-track span {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--step-accent);
    box-shadow: 0 0 0 5px color-mix(in oklch, var(--step-accent) 15%, transparent);
    transform: translate(-50%, -50%);
}

.catalog-scope {
    display: grid;
    grid-template-columns: minmax(260px, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(40px, 8vw, 110px);
}

.catalog-scope .catalog-section-heading {
    display: block;
}

.catalog-scope-copy {
    max-width: 68ch;
    padding-top: 10px;
}

.catalog-scope-copy p {
    margin: 0;
    font-size: clamp(1rem, 1.6vw, 1.12rem);
    line-height: 1.78;
}

.catalog-scope-copy p + p {
    margin-top: 24px;
}

.catalog-scope-copy a,
.faq-list a {
    color: var(--catalog-cyan);
    text-decoration-color: color-mix(in oklch, var(--catalog-cyan) 45%, transparent);
    text-underline-offset: 4px;
}

.catalog-scope-copy a:hover,
.faq-list a:hover {
    text-decoration-color: currentColor;
}

.catalog-next-step {
    position: relative;
    isolation: isolate;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: clamp(36px, 8vw, 110px);
    align-items: end;
    margin-block: clamp(30px, 5vw, 72px);
    padding: clamp(32px, 6vw, 72px);
    border: 1px solid oklch(0.43 0.09 295);
    border-radius: 24px;
    background: oklch(0.18 0.045 290);
    overflow: hidden;
}

.catalog-next-step::after {
    content: "";
    position: absolute;
    z-index: -1;
    right: -120px;
    bottom: -180px;
    width: 420px;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, oklch(0.7 0.18 300 / 0.24), transparent 70%);
    pointer-events: none;
}

.catalog-next-step > div {
    max-width: 700px;
}

.catalog-next-step h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.75rem);
}

.catalog-next-step p:not(.catalog-next-label) {
    max-width: 62ch;
    margin: 22px 0 0;
    font-size: 1rem;
    line-height: 1.7;
}

.catalog-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 13px 22px;
    border: 1px solid var(--catalog-cyan);
    border-radius: 10px;
    color: oklch(0.14 0.025 200);
    background: var(--catalog-cyan);
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    transition: background-color 180ms cubic-bezier(0.22, 1, 0.36, 1),
                transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.catalog-cta:hover {
    background: oklch(0.94 0.12 185);
    transform: translateY(-2px);
}

.catalog-faq {
    padding-bottom: clamp(84px, 11vw, 144px);
}

.catalog-faq .catalog-section-heading {
    display: block;
    text-align: center;
}

.faq-list {
    width: min(100%, 820px);
    margin: clamp(42px, 7vw, 72px) auto 0;
    border-top: 1px solid var(--catalog-line);
}

.faq-list details {
    border-bottom: 1px solid var(--catalog-line);
}

.faq-list summary {
    position: relative;
    padding: 24px 48px 24px 0;
    color: var(--catalog-ink);
    font-size: clamp(1.02rem, 2vw, 1.18rem);
    font-weight: 600;
    line-height: 1.45;
    cursor: pointer;
    list-style: none;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::after {
    content: "+";
    position: absolute;
    top: 50%;
    right: 2px;
    color: var(--catalog-cyan);
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1;
    transform: translateY(-50%);
}

.faq-list details[open] summary::after {
    content: "−";
}

.faq-list details p {
    max-width: 68ch;
    margin: -4px 48px 24px 0;
    color: var(--catalog-copy);
    line-height: 1.7;
}

@media screen and (max-width: 900px) {
    .work-type-wrapper {
        grid-template-columns: 1fr;
    }

    .type-container {
        min-height: 250px;
    }

    .catalog-guide {
        grid-template-columns: 1fr;
        gap: 44px;
    }

    .catalog-guide-intro {
        position: static;
        max-width: 720px;
    }

    .catalog-guide-lead {
        max-width: 60ch;
    }

    .catalog-scope,
    .catalog-next-step {
        grid-template-columns: 1fr;
    }

    .catalog-cta {
        justify-self: start;
    }
}

@media screen and (max-width: 640px) {
    .themes-by-container,
    .catalog-section {
        width: min(100% - 32px, 1180px);
    }

    .themes-by-container {
        padding-top: 38px;
    }

    .themes-by-container h1 {
        font-size: clamp(2.15rem, 11.5vw, 3rem);
    }

    .catalog-section-heading {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .catalog-section-heading > p {
        margin-top: 0;
    }

    .catalog-section h2 {
        font-size: clamp(1.75rem, 8vw, 2.45rem);
    }

    .theme-check {
        grid-template-columns: 38px minmax(0, 1fr);
        gap: 12px;
    }

    .assignment-brief,
    .scope-meter,
    .topic-formula {
        margin-top: 22px;
        padding: 14px;
    }

    .scope-meter-labels {
        grid-template-columns: 1fr 1fr;
    }

    .scope-meter-labels strong {
        grid-column: 1 / -1;
        grid-row: 1;
        text-align: left;
    }

    .catalog-next-step {
        width: calc(100% - 24px);
        padding: 30px 22px;
        border-radius: 18px;
    }

    .catalog-cta {
        width: 100%;
    }

    .faq-list {
        margin-inline: auto;
    }

    .faq-list summary {
        padding-block: 21px;
        padding-right: 38px;
    }

    .faq-list details p {
        margin-right: 28px;
    }
}

@media screen and (max-width: 500px) {
    .themes-by-container h1 {
        font-size: clamp(1.9rem, 9vw, 2.3rem);
    }

    .catalog-section h2 {
        font-size: clamp(1.55rem, 7vw, 1.9rem);
    }

    .type-name {
        font-size: 1.4rem;
    }

    .theme-check h3 {
        font-size: 1.1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .type-container,
    .type-action span,
    .catalog-cta {
        transition: none;
    }

    .type-container:hover,
    .catalog-cta:hover {
        transform: none;
    }
}