/*
 * Tradiency Phase C homepage composition.
 *
 * Phase B owns tokens and reusable components. This file owns homepage-only
 * composition and does not restyle unrelated routes.
 */

.td-home {
    position: relative;
    isolation: isolate;
    overflow: clip;
    background: var(--td-vs-night-ledger);
    color: var(--td-vs-document);
}

@supports not (overflow: clip) {
    .td-home {
        overflow: hidden;
    }
}

.td-home :where(h1, h2, h3, h4, p) {
    text-wrap: pretty;
}

.td-home :where(h1, h2) {
    text-wrap: balance;
}

.td-home :where(section[id]) {
    scroll-margin-top: var(--sticky-anchor-offset, 6rem);
}

.td-home-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.td-home-boundary {
    max-width: 58ch;
    margin: 1.1rem 0 0;
    padding-inline-start: 0.8rem;
    border-inline-start: 2px solid var(--td-vs-context);
    color: var(--td-vs-slate-strong);
    font-size: 0.875rem;
    line-height: 1.55;
}

.td-home-section-link {
    display: flex;
    justify-content: flex-end;
    margin-block-start: 1.5rem;
}

/* Hero: thesis plus server-rendered Decision Console. */
.td-home-hero {
    position: relative;
    border-block-end: 1px solid var(--td-vs-line);
    background:
        linear-gradient(90deg, rgba(111, 142, 164, 0.06), transparent 32%),
        var(--td-vs-night-ledger);
}

.td-home-hero::before {
    content: "TD / PERMISSION DOCKET / 01";
    position: absolute;
    inset: 1rem max(0.75rem, calc((100% - var(--td-vs-container)) / 2)) auto auto;
    color: rgba(152, 164, 174, 0.36);
    font-family: var(--td-vs-font-mono);
    font-size: 0.625rem;
    letter-spacing: 0.08em;
    pointer-events: none;
}

.td-home-hero__grid {
    display: grid;
    grid-template-columns: minmax(18rem, 0.72fr) minmax(36rem, 1.28fr);
    gap: clamp(2.5rem, 5vw, 5rem);
    align-items: center;
}

.td-home-hero__copy {
    min-width: 0;
    padding-block: 1rem;
}

.td-home-hero__copy h1 {
    max-width: 11ch;
    margin: 0;
    color: var(--td-vs-document);
    font-family: var(--td-vs-font-sans);
    font-size: clamp(3rem, 5.6vw, 5.25rem);
    font-weight: 600;
    letter-spacing: -0.055em;
    line-height: 0.96;
}

.td-home-hero__lede {
    max-width: 57ch;
    margin: 1.5rem 0 0;
    color: var(--td-vs-slate-strong);
    font-size: clamp(1rem, 1.2vw, 1.125rem);
    line-height: 1.68;
}

.td-home-hero .td-home-actions {
    margin-block-start: 1.75rem;
}

.td-home-hero__console {
    min-width: 0;
}

.td-home-hero__console .td-decision-console {
    box-shadow: var(--td-vs-shadow-overlay);
}

.td-home-hero__console .td-decision-console__title {
    font-size: clamp(1.35rem, 2.2vw, 1.9rem);
}

.td-home-hero__console .td-decision-console__row {
    grid-template-columns: minmax(7rem, 0.3fr) minmax(0, 1fr);
    gap: 1rem;
    padding-block: 0.85rem;
}

.td-home-hero__console .td-decision-console__row dd {
    grid-template-columns: minmax(6.5rem, 0.28fr) minmax(0, 1fr);
}

.td-home-hero__console .td-decision-console__summary {
    font-size: 0.875rem;
}

.td-home-hero__console .td-decision-console__evidence {
    margin-block-start: 0.5rem;
}

/* Light research docket: broken sequence versus permission sequence. */
.td-home-problem {
    background: var(--td-vs-document);
    color: var(--td-vs-document-ink);
}

.td-home-problem .td-vs-kicker {
    color: #4e606d;
}

.td-home-problem__head {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.7fr);
    gap: clamp(1.5rem, 4vw, 4rem);
    align-items: end;
    margin-block-end: clamp(2rem, 5vw, 4rem);
}

.td-home-problem__head .td-vs-kicker,
.td-home-problem__head h2 {
    grid-column: 1;
}

.td-home-problem__head h2 {
    max-width: 15ch;
    margin: -0.2rem 0 0;
    color: var(--td-vs-document-ink);
    font-family: var(--td-vs-font-sans);
    font-size: clamp(2.25rem, 5vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.05em;
    line-height: 0.98;
}

.td-home-problem__head > p:last-child {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin: 0;
    color: #42505a;
    font-size: 1rem;
    line-height: 1.7;
}

.td-home-workflow-contrast {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: hidden;
    border: 1px solid #b8c2c8;
    border-radius: var(--td-vs-radius-sm);
}

.td-home-workflow {
    min-width: 0;
    padding: clamp(1.25rem, 3vw, 2.25rem);
}

.td-home-workflow + .td-home-workflow {
    border-inline-start: 1px solid #b8c2c8;
}

.td-home-workflow > header {
    margin-block-end: 1.5rem;
    padding-block-end: 1rem;
    border-block-end: 1px solid #c8d0d4;
}

.td-home-workflow > header span {
    display: block;
    margin-block-end: 0.5rem;
    color: #53616b;
    font-family: var(--td-vs-font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.td-home-workflow h3 {
    margin: 0;
    color: var(--td-vs-document-ink);
    font-size: clamp(1.35rem, 2.6vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.025em;
}

.td-home-workflow ol {
    display: grid;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: workflow;
}

.td-home-workflow li {
    display: grid;
    grid-template-columns: minmax(8rem, 0.45fr) minmax(0, 1fr);
    gap: 1rem;
    padding-block: 0.9rem;
    border-block-end: 1px solid #d2d8db;
    counter-increment: workflow;
}

.td-home-workflow li:last-child {
    border-block-end: 0;
}

.td-home-workflow li strong {
    position: relative;
    padding-inline-start: 2rem;
    color: #20282e;
    font-size: 0.875rem;
    font-weight: 650;
    line-height: 1.45;
}

.td-home-workflow li strong::before {
    content: counter(workflow, decimal-leading-zero);
    position: absolute;
    inset: 0 auto auto 0;
    color: #687781;
    font-family: var(--td-vs-font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
}

.td-home-workflow li p {
    margin: 0;
    color: #4b5963;
    font-size: 0.875rem;
    line-height: 1.55;
}

.td-home-workflow--broken {
    background: #e5e9e9;
}

.td-home-workflow--broken li strong::before {
    text-decoration: line-through;
    text-decoration-thickness: 1px;
}

.td-home-workflow--structured {
    background: var(--td-vs-carbon);
    color: var(--td-vs-document);
}

.td-home-workflow--structured > header,
.td-home-workflow--structured li {
    border-color: var(--td-vs-line);
}

.td-home-workflow--structured > header span,
.td-home-workflow--structured li strong::before {
    color: #9fb6c5;
}

.td-home-workflow--structured h3,
.td-home-workflow--structured li strong {
    color: var(--td-vs-document);
}

.td-home-workflow--structured li p {
    color: var(--td-vs-slate-strong);
}

.td-home-workflow__review {
    margin: 1.2rem 0 0;
    padding: 0.9rem 1rem;
    border: 1px solid var(--td-vs-context);
    border-inline-start-width: 3px;
    color: #d6e0e5;
    font-size: 0.875rem;
    line-height: 1.55;
}

/* Canonical gate. */
.td-home-gate {
    background: var(--td-vs-night-ledger);
}

.td-home-gate .td-permission-docket {
    border-color: var(--td-vs-line-strong);
}

/* Hierarchical curriculum composition. */
.td-home-curriculum {
    border-block: 1px solid var(--td-vs-line);
    background: var(--td-vs-carbon);
}

.td-home-curriculum .td-curriculum-grid__items {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1px;
    border-radius: var(--td-vs-radius-sm);
}

.td-home-curriculum .td-curriculum-card {
    grid-column: span 4;
    display: flex;
    flex-direction: column;
    padding: clamp(1rem, 2vw, 1.4rem);
}

.td-home-curriculum .td-curriculum-card:nth-child(1),
.td-home-curriculum .td-curriculum-card:nth-child(2) {
    grid-column: span 6;
}

.td-home-curriculum .td-curriculum-card:nth-child(6) {
    grid-column: span 7;
}

.td-home-curriculum .td-curriculum-card:nth-child(7) {
    grid-column: span 5;
}

.td-home-curriculum .td-curriculum-card:nth-child(8),
.td-home-curriculum .td-curriculum-card:nth-child(9) {
    grid-column: span 6;
}

.td-home-curriculum .td-curriculum-card:nth-child(10) {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(12rem, 0.45fr) minmax(0, 1fr);
    grid-template-areas:
        "header header"
        "motif title"
        "motif copy"
        "motif details";
    gap: 0 1.5rem;
}

.td-home-curriculum .td-curriculum-card:nth-child(10) .td-curriculum-card__header {
    grid-area: header;
}

.td-home-curriculum .td-curriculum-card:nth-child(10) .td-curriculum-card__motif {
    grid-area: motif;
    height: 100%;
    min-height: 11rem;
    margin: 0;
}

.td-home-curriculum .td-curriculum-card:nth-child(10) h3 {
    grid-area: title;
}

.td-home-curriculum .td-curriculum-card:nth-child(10) > p {
    grid-area: copy;
}

.td-home-curriculum .td-curriculum-card:nth-child(10) dl {
    grid-area: details;
}

.td-home-curriculum .td-curriculum-card__motif {
    height: 7.5rem;
}

.td-home-curriculum .td-curriculum-card > p {
    min-height: 0;
}

.td-home-curriculum .td-curriculum-card dl {
    margin-block-start: auto;
}

.td-home-curriculum .td-curriculum-card--core-decision-discipline {
    box-shadow: inset 0 3px 0 var(--td-vs-context);
}

.td-home-curriculum .td-curriculum-card--review-and-refinement {
    box-shadow: inset 0 3px 0 var(--td-vs-permission);
}

/* Course-to-review operating sequence. */
.td-home-system {
    background: var(--td-vs-night-ledger);
}

.td-home-system__sequence {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1px;
    margin: 0;
    padding: 1px;
    border-radius: var(--td-vs-radius-sm);
    background: var(--td-vs-line);
    list-style: none;
}

.td-home-system__sequence li {
    grid-column: span 3;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 0.9rem;
    min-width: 0;
    padding: clamp(1rem, 2vw, 1.35rem);
    background: var(--td-vs-carbon);
}

.td-home-system__sequence li:nth-child(n + 5) {
    grid-column: span 4;
    background: var(--td-vs-steel);
}

.td-home-system__code {
    color: var(--td-vs-context);
    font-family: var(--td-vs-font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
}

.td-home-system__sequence li:nth-child(4) .td-home-system__code,
.td-home-system__sequence li:nth-child(7) .td-home-system__code {
    color: var(--td-vs-permission);
}

.td-home-system__sequence li div > p:first-child {
    margin: 0 0 0.45rem;
    color: var(--td-vs-slate);
    font-family: var(--td-vs-font-mono);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.td-home-system__sequence h3 {
    margin: 0 0 0.55rem;
    color: var(--td-vs-document);
    font-size: 1.05rem;
    font-weight: 650;
    line-height: 1.2;
}

.td-home-system__sequence li div > p:last-child {
    margin: 0;
    color: var(--td-vs-slate-strong);
    font-size: 0.8125rem;
    line-height: 1.55;
}

/* Provenance-first product environment. */
.td-home-product {
    border-block: 1px solid var(--td-vs-line);
    background: var(--td-vs-night-ledger);
}

.td-home-product .td-proof-panel {
    border-radius: var(--td-vs-radius-sm);
    box-shadow: none;
}

.td-home-product .td-proof-panel__frame {
    min-height: clamp(10rem, 18vw, 14rem);
}

.td-home-product .td-proof-panel:nth-child(n + 3) .td-proof-panel__frame {
    min-height: 9rem;
}

/* Qualification split. */
.td-home-qualification {
    background: var(--td-vs-carbon);
}

.td-home-qualification .td-qualification__panel {
    border-radius: var(--td-vs-radius-sm);
    box-shadow: none;
}

/* Compact evidence ledger. */
.td-home-proof {
    border-block-start: 1px solid var(--td-vs-line);
    background: var(--td-vs-night-ledger);
}

.td-home-proof .td-process-proof__grid {
    border-radius: var(--td-vs-radius-sm);
}

.td-home-proof .td-proof-card {
    min-height: 13rem;
}

/* Owned-site pricing transition. */
.td-home-pricing {
    background: var(--td-vs-document);
}

.td-home-pricing .td-cta-block {
    border-radius: var(--td-vs-radius-sm);
    box-shadow: var(--td-vs-shadow-surface);
}

/* Native FAQ disclosures. */
.td-home-faq {
    background: var(--td-vs-carbon);
}

.td-home-faq__layout {
    display: grid;
    grid-template-columns: minmax(18rem, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(2rem, 6vw, 6rem);
    align-items: start;
}

.td-home-faq__layout > header {
    position: sticky;
    inset-block-start: calc(var(--sticky-anchor-offset, 6rem) + 1.5rem);
}

.td-home-faq__layout > header h2 {
    max-width: 13ch;
    margin: 0;
    color: var(--td-vs-document);
    font-size: clamp(2rem, 4.6vw, 4rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1;
}

.td-home-faq__layout > header > p:not(.td-vs-kicker) {
    max-width: 48ch;
    margin: 1.2rem 0 1.4rem;
    color: var(--td-vs-slate-strong);
    font-size: 0.9375rem;
    line-height: 1.65;
}

.td-home-faq__items {
    border-block-start: 1px solid var(--td-vs-line-strong);
}

.td-home-faq__item {
    border-block-end: 1px solid var(--td-vs-line);
}

.td-home-faq__item summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
    min-height: 64px;
    padding: 1rem 0.25rem;
    color: var(--td-vs-document);
    font-size: 1rem;
    font-weight: 650;
    line-height: 1.35;
    cursor: pointer;
    list-style: none;
}

.td-home-faq__item summary::-webkit-details-marker {
    display: none;
}

.td-home-faq__item summary:focus-visible {
    outline: 0;
    border-radius: var(--td-vs-radius-sm);
    box-shadow: var(--td-vs-focus);
}

.td-home-faq__marker {
    position: relative;
    width: 1.25rem;
    height: 1.25rem;
    border: 1px solid var(--td-vs-line-strong);
    border-radius: var(--td-vs-radius-sm);
}

.td-home-faq__marker::before,
.td-home-faq__marker::after {
    content: "";
    position: absolute;
    inset: 50% auto auto 50%;
    width: 0.55rem;
    height: 1px;
    background: var(--td-vs-slate-strong);
    transform: translate(-50%, -50%);
}

.td-home-faq__marker::after {
    transform: translate(-50%, -50%) rotate(90deg);
    transition: transform var(--td-vs-motion-fast);
}

.td-home-faq__item[open] .td-home-faq__marker {
    border-color: var(--td-vs-permission);
}

.td-home-faq__item[open] .td-home-faq__marker::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.td-home-faq__answer {
    padding: 0 3rem 1.25rem 0.25rem;
}

.td-home-faq__answer p {
    max-width: 68ch;
    margin: 0;
    color: var(--td-vs-slate-strong);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.td-home-faq__answer a {
    color: var(--td-vs-document);
    text-decoration-color: var(--td-vs-context);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
}

.td-home-faq__answer a:hover {
    color: #bfd0db;
}

.td-home-faq__answer a:focus-visible {
    outline: 0;
    border-radius: 0.2rem;
    box-shadow: var(--td-vs-focus);
}

/* Quiet final qualification close. */
.td-home-final {
    background: var(--td-vs-night-ledger);
}

.td-home-final__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: clamp(1.5rem, 5vw, 5rem);
    align-items: end;
}

.td-home-final h2 {
    max-width: 18ch;
    margin: 0;
    color: var(--td-vs-document);
    font-size: clamp(2rem, 4.6vw, 4rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1;
}

.td-home-final div > p:not(.td-vs-kicker) {
    margin: 1rem 0 0;
    color: var(--td-vs-slate-strong);
    font-size: 0.875rem;
    line-height: 1.55;
}

/* Tablet and mobile composition. */
@media (max-width: 68rem) {
    .td-home-hero__grid,
    .td-home-faq__layout {
        grid-template-columns: 1fr;
    }

    .td-home-hero__copy {
        max-width: 52rem;
    }

    .td-home-hero__copy h1 {
        max-width: 13ch;
    }

    .td-home-faq__layout > header {
        position: static;
    }

    .td-home-faq__layout > header h2 {
        max-width: 18ch;
    }

    .td-home-system__sequence li,
    .td-home-system__sequence li:nth-child(n + 5) {
        grid-column: span 6;
    }

    .td-home-system__sequence li:last-child {
        grid-column: 1 / -1;
    }
}

@media (max-width: 56rem) {
    .td-home-problem__head {
        grid-template-columns: 1fr;
    }

    .td-home-problem__head .td-vs-kicker,
    .td-home-problem__head h2,
    .td-home-problem__head > p:last-child {
        grid-column: 1;
        grid-row: auto;
    }

    .td-home-workflow-contrast {
        grid-template-columns: 1fr;
    }

    .td-home-workflow + .td-home-workflow {
        border-block-start: 1px solid #b8c2c8;
        border-inline-start: 0;
    }

    .td-home-curriculum .td-curriculum-card,
    .td-home-curriculum .td-curriculum-card:nth-child(n) {
        grid-column: span 6;
    }

    .td-home-curriculum .td-curriculum-card:nth-child(10) {
        grid-column: 1 / -1;
    }

    .td-home-final__inner {
        grid-template-columns: 1fr;
        align-items: start;
    }
}

@media (max-width: 48rem) {
    .td-home-hero {
        padding-block-start: clamp(3.25rem, 10vw, 4.5rem);
    }

    .td-home-hero::before {
        content: "TD / PERMISSION DOCKET";
    }

    .td-home-hero__copy h1 {
        font-size: clamp(2.65rem, 11vw, 4.25rem);
    }

    .td-home-hero__console .td-decision-console__row,
    .td-home-hero__console .td-decision-console__row dd {
        grid-template-columns: 1fr;
    }

    .td-home-workflow li {
        grid-template-columns: 1fr;
        gap: 0.35rem;
    }

    .td-home-workflow li p {
        padding-inline-start: 2rem;
    }

    .td-home-curriculum .td-curriculum-grid__items {
        grid-template-columns: 1fr;
    }

    .td-home-curriculum .td-curriculum-card,
    .td-home-curriculum .td-curriculum-card:nth-child(n),
    .td-home-curriculum .td-curriculum-card:nth-child(10) {
        grid-column: auto;
        display: flex;
    }

    .td-home-curriculum .td-curriculum-card:nth-child(10) .td-curriculum-card__motif {
        width: 100%;
        height: 7.5rem;
        min-height: 0;
        margin-block-end: 1rem;
    }

    .td-home-system__sequence {
        grid-template-columns: 1fr;
    }

    .td-home-system__sequence li,
    .td-home-system__sequence li:nth-child(n + 5),
    .td-home-system__sequence li:last-child {
        grid-column: auto;
    }

    .td-home-section-link {
        justify-content: stretch;
    }

    .td-home-section-link .td-vs-button,
    .td-home-final .td-home-actions,
    .td-home-final .td-home-actions .td-vs-button {
        width: 100%;
    }
}

@media (max-width: 30rem) {
    .td-home-hero__copy h1 {
        font-size: clamp(2.3rem, 11.5vw, 3.1rem);
    }

    .td-home-hero__lede {
        margin-block-start: 1.1rem;
        font-size: 1rem;
    }

    .td-home-hero .td-home-actions {
        margin-block-start: 1.3rem;
    }

    .td-home-hero .td-home-actions,
    .td-home-hero .td-home-actions .td-vs-button {
        width: 100%;
    }

    .td-home-workflow {
        padding: 1rem;
    }

    .td-home-faq__answer {
        padding-inline-end: 0.25rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .td-home-faq__marker::after {
        transition: none;
    }
}

@media (forced-colors: active) {
    .td-home-problem,
    .td-home-workflow,
    .td-home-workflow--structured,
    .td-home-system__sequence li {
        border-color: CanvasText;
        background: Canvas;
        color: CanvasText;
    }

    .td-home-faq__item summary:focus-visible,
    .td-home-faq__answer a:focus-visible {
        outline: 3px solid Highlight;
        outline-offset: 3px;
        box-shadow: none;
    }
}