/* Shared frontend for the catalogue, learning, journal and workspace. */
.platform-page { overflow-wrap: anywhere; }
.platform-page .ink-icon { display: block; width: 60px; height: 60px; fill: none; stroke: var(--ink); stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.platform-header { gap: 1.6rem; }
.platform-header .wordmark { width: 12.5rem; }
.platform-header .nav-list { gap: clamp(.8rem, 1.6vw, 1.6rem); font-size: .85rem; }
.platform-header a[aria-current=page] { text-decoration: underline; text-underline-offset: .4em; }
.platform-main { padding-bottom: 2rem; }
.platform-main [tabindex="0"]:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.platform-main h1 { font-size: clamp(2.7rem, 5.3vw, 5.4rem); line-height: 1.04; letter-spacing: -.055em; }
.platform-main .split-intro h1 { font-size: clamp(2.7rem, 4.8vw, 5rem); }
.platform-main h2 { margin: 0; font-size: clamp(1.85rem, 3vw, 3rem); line-height: 1.14; letter-spacing: -.04em; }
.platform-main h3 { margin: 0; font-size: clamp(1.3rem, 2vw, 1.8rem); line-height: 1.25; letter-spacing: -.03em; }
.platform-main p { line-height: 1.75; }
.platform-main .eyebrow { font-size: .72rem; letter-spacing: .12em; line-height: 1.6; text-transform: uppercase; }
.platform-main .muted { color: var(--muted); }
.page-intro { padding-block: clamp(3rem, 6vw, 6rem); }
.page-intro > p:not(.eyebrow), .intro-copy > p:not(.eyebrow) { max-width: 600px; margin: 1.5rem 0 0; color: var(--muted); font-size: 1.08rem; }
.split-intro { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 3rem; align-items: center; }
.intro-copy, .feature-copy, .feature-art, .article-card, .workspace-content { min-width: 0; }
.intro-art { position: relative; width: 100%; max-width: 560px; justify-self: center; }
.intro-art img, .feature-art img, .article-cover img, .course-art img { display: block; width: 100%; height: auto; mix-blend-mode: multiply; }
.art-caption { margin: .5rem 0 0; text-align: center; color: var(--muted); font-size: .76rem; }
.ink-orbit { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; fill: none; stroke: #9e998b; stroke-width: 1; pointer-events: none; }
.ink-orbit circle { fill: var(--paper); stroke: #a08643; }
.intro-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.6rem; margin-top: 2rem; }
.intro-actions .button { font-size: .9rem; min-height: 48px; }
.section-index { display: flex; flex-wrap: wrap; gap: .75rem 2.5rem; padding-block: 1.25rem; border-block: 1px solid #d8d7cf; }
.section-index a { display: inline-flex; align-items: center; gap: .8rem; min-height: 44px; font-size: .9rem; }
.section-index span, .step-index { color: #8c7d55; font-size: .72rem; font-variant-numeric: tabular-nums; }
.catalogue-section { padding-block: clamp(3rem, 6vw, 5rem); scroll-margin-top: 2rem; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 2.5rem; }
.section-heading > div { max-width: 640px; }
.section-heading p:last-child { margin-bottom: 0; color: var(--muted); max-width: 550px; }
.section-heading > a { flex-shrink: 0; }
.feature-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: center; gap: clamp(2rem, 5vw, 5rem); border-block: 1px solid #d8d7cf; padding-block: 2.5rem; }
.feature-row.reverse .feature-art { order: -1; }
.feature-copy > p:not(.eyebrow) { max-width: 500px; color: var(--muted); }
.feature-copy h3 { font-size: clamp(1.8rem, 3vw, 2.8rem); }
.badge { display: inline-flex; align-items: center; gap: .5rem; padding: .4rem .7rem; border: 1px solid #d5cfbb; border-radius: 999px; font-size: .7rem; line-height: 1.4; color: #625737; background: #f3efdf; }
.badge::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: #9a7c35; flex-shrink: 0; }
.feature-meta { display: flex; flex-wrap: wrap; gap: .6rem 1.3rem; margin-block: 1.25rem; font-size: .78rem; color: var(--muted); }
.feature-meta span + span::before { content: '/'; margin-right: 1.3rem; color: #b7b1a0; }
.text-link { display: inline-flex; align-items: center; gap: 1rem; min-height: 44px; font-size: .9rem; text-decoration: underline; text-underline-offset: .35em; }
.preview-note { display: flex; gap: .9rem; align-items: baseline; padding: 1rem 0; border-bottom: 1px solid #d8d7cf; color: var(--muted); font-size: .8rem; line-height: 1.6; }
.preview-note strong { color: var(--ink); font-weight: 500; flex-shrink: 0; }
.quiet-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem; margin-top: 2.5rem; }
.quiet-item { min-width: 0; padding-top: 1.25rem; border-top: 1px solid #d8d7cf; }
.quiet-item h3 { font-size: 1.25rem; margin-top: 1.2rem; }
.quiet-item p { color: var(--muted); font-size: .93rem; }
.quiet-item .ink-icon { width: 45px; height: 45px; }
.closing-note { display: flex; justify-content: space-between; align-items: center; gap: 2rem; border-top: 1px solid #d8d7cf; padding-block: 3rem; margin-top: 2rem; }
.closing-note h2 { font-size: clamp(1.7rem, 3vw, 2.6rem); }
.closing-note p { color: var(--muted); margin: .75rem 0 0; }
.closing-note .button { flex-shrink: 0; font-size: .9rem; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: .6rem; padding-top: 2rem; color: var(--muted); font-size: .78rem; }
.breadcrumbs a { text-decoration: underline; text-underline-offset: .25em; }
.breadcrumbs span { color: #aca596; }
.detail-intro { padding-top: 2.8rem; }
.detail-intro .badge { margin-bottom: 1.5rem; }
.facts-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid #d8d7cf; padding-block: 1.6rem; gap: 2rem; }
.facts-strip p { margin: .35rem 0 0; font-size: .95rem; }
.facts-strip dt { font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.facts-strip dd { margin: .5rem 0 0; }
.detail-section { display: grid; grid-template-columns: minmax(0, .65fr) minmax(0, 1.35fr); gap: 4rem; padding-block: 3.5rem; border-bottom: 1px solid #d8d7cf; }
.detail-section h2 { font-size: 1.7rem; }
.detail-section > div { min-width: 0; }
.detail-section p:first-child { margin-top: 0; }
.detail-section p, .detail-section li { color: var(--muted); }
.check-list { margin: 0; padding: 0; list-style: none; }
.check-list li { display: flex; gap: 1rem; padding-block: 1rem; border-bottom: 1px solid #e2dfd4; line-height: 1.6; }
.check-list li::before { content: '↳'; color: #9a7c35; }
.check-list li:first-child { padding-top: 0; }
.check-list li:last-child { border: 0; }
.workflow-strip { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; margin-block: 2rem; }
.workflow-strip::before { content: ''; position: absolute; left: 0; right: 0; top: 22px; border-top: 1px solid #b9b2a0; }
.workflow-step { position: relative; min-width: 0; }
.workflow-step > span { display: grid; place-items: center; width: 44px; height: 44px; background: var(--paper); border: 1px solid #c6b47e; border-radius: 50%; font-size: .76rem; }
.workflow-step h3 { font-size: 1.06rem; margin-top: 1rem; }
.workflow-step p { color: var(--muted); font-size: .86rem; line-height: 1.65; }
.purchase-note { padding-block: 2.5rem; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1.5rem; }
.purchase-note p { color: var(--muted); max-width: 560px; margin: .5rem 0 0; font-size: .9rem; }
.platform-page .button:disabled { background: #e9e6dc; border-color: #d4d0c4; color: #6a665b; }
.syllabus { border-top: 1px solid #d8d7cf; }
.syllabus details { border-bottom: 1px solid #d8d7cf; }
.syllabus summary { cursor: pointer; padding: 1.5rem 2rem 1.5rem 0; font-size: 1.1rem; font-weight: 600; line-height: 1.4; }
.syllabus summary:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.syllabus details > div { padding-bottom: 1.5rem; color: var(--muted); }
.syllabus details > div p { margin: 0 0 .7rem; }
.lesson-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 4rem; padding-block: 3rem; }
.lesson-sidebar { border-right: 1px solid #d8d7cf; padding-right: 2rem; }
.lesson-sidebar ol { margin: 0; padding: 0; list-style: none; }
.lesson-sidebar li { padding-block: 1rem; border-bottom: 1px solid #d8d7cf; font-size: .85rem; line-height: 1.5; }
.lesson-sidebar li span { display: block; color: var(--muted); font-size: .72rem; margin-top: .4rem; }
.lesson-sidebar a[aria-current=page] { text-decoration: underline; text-underline-offset: .3em; }
.lesson-content { min-width: 0; max-width: 780px; }
.lesson-content h1 { font-size: clamp(2.4rem, 4vw, 3.8rem); }
.lesson-content h2 { font-size: 1.6rem; margin-top: 2.2rem; }
.lesson-content p { color: var(--muted); }
.lesson-canvas { margin-block: 2rem; padding: 1.5rem; border: 1px solid #d8d7cf; background: #f2f0e6; }
.lesson-canvas .eyebrow { margin-bottom: 1rem; }
.reflection { margin-top: 2rem; }
.reflection summary { cursor: pointer; min-height: 44px; line-height: 1.6; }
.reading-check { display: flex; gap: .75rem; align-items: center; margin-top: 2rem; padding-block: 1rem; }
.reading-check input { width: 20px; height: 20px; accent-color: #73643c; flex-shrink: 0; }
.reading-status { color: var(--muted); font-size: .82rem; min-height: 2rem; }
.workspace { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 3rem; padding-block: 2.5rem 4rem; }
.workspace-sidebar { border-right: 1px solid #d8d7cf; padding-right: 1.5rem; }
.workspace-sidebar .eyebrow { margin-top: 0; }
.workspace-nav { display: grid; gap: .35rem; }
.workspace-nav a { display: flex; gap: .8rem; align-items: center; padding: .8rem .7rem; min-height: 44px; border-radius: 3px; font-size: .85rem; }
.workspace-nav a[aria-current=location] { background: #eae6d8; color: var(--ink); }
.workspace-nav svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.4; flex-shrink: 0; }
.platform-page .workspace-nav .ink-icon { width: 18px; height: 18px; }
.workspace-top { display: flex; gap: 1rem; align-items: center; justify-content: space-between; margin-bottom: 2.5rem; }
.workspace-top h1 { font-size: clamp(2rem, 3vw, 3rem); }
.workspace-top p { color: var(--muted); font-size: .9rem; }
.workspace-panel { scroll-margin-top: 1.5rem; padding-bottom: 2rem; }
.workspace-panel h2 { font-size: 1.6rem; }
.workspace-panel > p { color: var(--muted); font-size: .9rem; }
.workspace-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.4rem; margin-block: 2rem; }
.summary-item { border: 1px solid #d8d7cf; padding: 1.3rem; }
.summary-item p { color: var(--muted); margin: 0; font-size: .8rem; }
.summary-item strong { display: block; font-size: 1.5rem; letter-spacing: -.03em; margin-block: .8rem; font-weight: 500; }
.table-wrap { max-width: 100%; overflow: auto; border-bottom: 1px solid #d8d7cf; }
.table-wrap:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.workspace-table { width: 100%; border-collapse: collapse; text-align: left; font-size: .85rem; }
.workspace-table th { color: var(--muted); font-size: .72rem; font-weight: 400; padding: 1rem .75rem; border-bottom: 1px solid #d8d7cf; }
.workspace-table td { padding: 1.3rem .75rem; border-bottom: 1px solid #e4e0d4; vertical-align: middle; line-height: 1.6; }
.workspace-table td:first-child { min-width: 190px; padding-left: 0; }
.workspace-table th:first-child { padding-left: 0; }
.workspace-table a { text-decoration: underline; text-underline-offset: .3em; display: inline-flex; min-height: 44px; align-items: center; }
.workspace-table .badge { white-space: nowrap; }
.table-empty { padding: 2.5rem 1.5rem; border: 1px dashed #c8c1ae; text-align: center; }
.table-empty p { color: var(--muted); max-width: 420px; margin: .8rem auto 0; }
.table-empty .ink-icon { margin: 0 auto 1.5rem; }
.editor-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem; margin-top: 2rem; }
.draft-form label { display: block; font-size: .82rem; margin-bottom: .6rem; }
.draft-form fieldset { min-width: 0; border: 0; margin: 0; padding: 0; }
.draft-form input, .draft-form textarea, .draft-form select { display: block; width: 100%; min-width: 0; font: inherit; font-size: .9rem; line-height: 1.5; padding: .8rem; border: 1px solid #a8a18e; background: transparent; color: var(--ink); margin-bottom: 1.3rem; border-radius: 3px; }
.draft-form textarea { resize: vertical; min-height: 170px; }
.draft-preview { padding: 1.5rem; background: #f1eee2; border: 1px solid #d8d1bc; align-self: start; }
.draft-preview h3 { margin-top: 1.5rem; }
.draft-preview p { color: var(--muted); font-size: .9rem; white-space: pre-line; }
.editor-status { font-size: .82rem; color: var(--muted); min-height: 2rem; }
.workspace-shortcuts { display: flex; flex-wrap: wrap; gap: .7rem 1.6rem; margin-top: 2rem; }
.platform-is-hidden .platform-page [data-ink-reveal] * { animation-play-state: paused !important; }

@media (prefers-reduced-motion: no-preference) {
  .platform-page .page-intro { animation: paper-arrives .65s ease both; }
  .platform-page [data-ink-reveal].is-inview .ink-orbit path { stroke-dasharray: 1; animation: thread-arrives 2.4s ease both; }
  .platform-page .feature-art img { transition: transform .35s ease; }
  .platform-page .feature-row:hover .feature-art img { transform: translateY(-3px); }
  @keyframes paper-arrives { from { opacity: .5; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
  @keyframes thread-arrives { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
}
@media (max-width: 79.9375em) {
  .platform-header { gap: .7rem; }
  .platform-header nav { width: auto; }
  .platform-header .wordmark { width: 12.5rem; }
  .platform-header nav { flex: 1 1 450px; }
}
@media (max-width: 56em) {
  .split-intro { grid-template-columns: minmax(0, 1fr) minmax(0, .8fr); gap: 1.5rem; }
  .workspace { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .workspace-sidebar { border-right: 0; border-bottom: 1px solid #d8d7cf; padding: 0 0 1rem; }
  .workspace-nav { display: flex; flex-wrap: wrap; }
  .workspace-nav a { padding: .65rem; }
  .workspace-top { margin-bottom: 2rem; }
  .lesson-layout { grid-template-columns: 190px minmax(0, 1fr); gap: 2rem; }
  .lesson-sidebar { padding-right: 1rem; }
}
@media (max-width: 42em) {
  .platform-header nav { flex-basis: 100%; }
  .platform-header .nav-list { gap: .3rem 1rem; font-size: .78rem; }
  .split-intro, .feature-row, .detail-section, .lesson-layout, .editor-layout { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .intro-art { max-width: 380px; }
  .page-intro { padding-top: 2.5rem; }
  .feature-row.reverse .feature-art { order: 0; }
  .feature-art { max-width: 430px; width: 100%; justify-self: center; }
  .quiet-grid { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .section-heading, .closing-note, .workspace-top { align-items: start; flex-direction: column; gap: 1rem; }
  .facts-strip { grid-template-columns: minmax(0, 1fr); gap: 1.2rem; }
  .facts-strip dd { margin-top: .2rem; }
  .workflow-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workflow-strip::before { display: none; }
  .lesson-canvas { padding: 1rem; }
  .lesson-sidebar { border-right: 0; border-bottom: 1px solid #d8d7cf; padding: 0 0 1rem; }
  .lesson-sidebar ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1rem; }
  .workspace-summary { grid-template-columns: minmax(0, 1fr); }
  .summary-item { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
  .summary-item strong { margin: 0; font-size: 1rem; }
  .preview-note { flex-direction: column; gap: .2rem; }
  .workspace-table { font-size: .8rem; }
  .workspace-table td:first-child { min-width: 160px; }
}