/*
 * SCIFN Style Lab v0.3.0 — unified Occam presentation layer
 *
 * Scope: visual tokens and component presentation only. The existing page
 * structure, responsive grids, encrypted payload contract, content models,
 * form workflows, PDF generation and reader behaviour remain unchanged.
 */

:root {
  color-scheme: light;

  /* Frozen SCIFN Style Lab reference tokens. */
  --scifn-deep-teal: #155e63;
  --scifn-compute-teal: #0f6b6d;
  --scifn-teal-hover: #0b5b5d;
  --scifn-teal-soft: #e5f1f0;
  --scifn-research-orange: #b85c1e;
  --scifn-orange-ink: #914511;
  --scifn-orange-soft: #fbede3;
  --scifn-instrument-blue: #2e5b78;
  --scifn-success: #287a55;
  --scifn-warning: #8a6500;
  --scifn-danger: #b42318;
  --scifn-canvas: #f4f6f5;
  --scifn-surface: #ffffff;
  --scifn-surface-subtle: #eef2f0;
  --scifn-ink: #17201d;
  --scifn-muted: #66716c;
  --scifn-border: #d7deda;
  --scifn-border-strong: #b8c2bd;
  --scifn-code: #25322d;
  --scifn-radius-control: 6px;
  --scifn-radius-panel: 8px;
  --scifn-radius-overlay: 10px;
  --scifn-shadow-overlay: 0 24px 70px rgba(23, 32, 29, .14);
  --scifn-font-sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --scifn-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  /* Compatibility mapping for the established site runtime. */
  --sc-navy-950: var(--scifn-ink);
  --sc-navy-900: var(--scifn-deep-teal);
  --sc-navy-800: var(--scifn-compute-teal);
  --sc-navy-700: var(--scifn-teal-hover);
  --sc-blue: var(--scifn-instrument-blue);
  --sc-sky: var(--scifn-instrument-blue);
  --sc-teal: var(--scifn-compute-teal);
  --sc-teal-soft: var(--scifn-teal-soft);
  --sc-orange: var(--scifn-research-orange);
  --sc-orange-strong: var(--scifn-research-orange);
  --sc-orange-soft: var(--scifn-orange-soft);
  --sc-red: var(--scifn-danger);
  --sc-red-soft: #fcebea;
  --sc-green: var(--scifn-success);
  --sc-green-soft: #e8f4ee;
  --sc-yellow: var(--scifn-warning);
  --sc-yellow-soft: #f8f2db;
  --sc-ink: var(--scifn-ink);
  --sc-muted: var(--scifn-muted);
  --sc-line: var(--scifn-border);
  --sc-line-strong: var(--scifn-border-strong);
  --sc-canvas: var(--scifn-canvas);
  --sc-card: var(--scifn-surface);
  --sc-card-soft: var(--scifn-surface-subtle);
  --sc-shadow-sm: none;
  --sc-shadow-md: none;
  --sc-shadow-lg: var(--scifn-shadow-overlay);
  --sc-radius-sm: var(--scifn-radius-control);
  --sc-radius-md: var(--scifn-radius-panel);
  --sc-radius-lg: var(--scifn-radius-overlay);
  --sc-max: 1180px;
  --sc-font: var(--scifn-font-sans);
}

html { background: var(--scifn-canvas); }
body {
  min-width: 320px;
  color: var(--scifn-ink);
  background: var(--scifn-canvas);
  font-family: var(--scifn-font-sans);
  font-size: 14px;
  line-height: 1.55;
}

a { color: var(--scifn-instrument-blue); text-underline-offset: 3px; }
a:hover { color: var(--scifn-deep-teal); }
code, pre, kbd, .mono,
.module-icon, .package-version, .research-path-number,
.research-paper-order, .deck-counter, .report-meeting-count {
  font-family: var(--scifn-font-mono);
  font-variant-numeric: tabular-nums;
}
::selection { color: #fff; background: var(--scifn-compute-teal); }
:focus-visible,
.sc-icon-button:focus-visible,
.sc-ghost-button:focus-visible,
.sc-primary-button:focus-visible,
.sc-secondary-button:focus-visible,
.sc-success-button:focus-visible,
.sc-danger-button:focus-visible,
.sc-lang-switch button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(184, 92, 30, .34);
  outline-offset: 2px;
}

/* Shared brand bar and controls. */
.sc-topbar { min-height: 58px; }
.sc-brand { gap: 10px; color: var(--scifn-deep-teal); }
.sc-brand-mark {
  width: 26px;
  height: 26px;
  border: 2px solid var(--scifn-deep-teal);
  border-radius: 5px;
  color: transparent;
  background: var(--scifn-surface);
  box-shadow: none;
  font-size: 0;
}
.sc-brand-mark::after {
  width: 7px;
  height: 7px;
  right: -5px;
  top: auto;
  bottom: 2px;
  border: 2px solid var(--scifn-surface);
  border-radius: 50%;
  background: var(--scifn-research-orange);
}
.sc-brand-copy strong { color: var(--scifn-deep-teal); font-size: .92rem; letter-spacing: .045em; }
.sc-brand-copy span {
  color: var(--scifn-muted);
  font-size: .68rem;
  font-weight: 650;
  letter-spacing: .045em;
  text-transform: none;
}

.sc-actions { gap: 8px; }
.sc-icon-button,
.sc-ghost-button,
.sc-primary-button,
.sc-secondary-button,
.sc-danger-button,
.sc-success-button {
  min-height: 40px;
  border-radius: var(--scifn-radius-control);
  padding: 8px 13px;
  box-shadow: none;
  font-weight: 720;
  transition: background .12s ease, border-color .12s ease, color .12s ease;
}
.sc-icon-button {
  width: 40px;
  color: var(--scifn-deep-teal);
  border: 1px solid var(--scifn-border);
  background: var(--scifn-surface);
}
.sc-ghost-button {
  color: var(--scifn-deep-teal);
  border: 1px solid var(--scifn-border);
  background: var(--scifn-surface);
}
.sc-primary-button {
  color: #fff;
  border: 1px solid var(--scifn-compute-teal);
  background: var(--scifn-compute-teal);
}
.sc-secondary-button {
  color: var(--scifn-deep-teal);
  border: 1px solid var(--scifn-border);
  background: var(--scifn-surface-subtle);
}
.sc-success-button { color: #fff; border: 1px solid var(--scifn-success); background: var(--scifn-success); }
.sc-danger-button { color: #fff; border: 1px solid var(--scifn-danger); background: var(--scifn-danger); }
.sc-icon-button:hover,
.sc-ghost-button:hover,
.sc-secondary-button:hover {
  color: var(--scifn-deep-teal);
  border-color: var(--scifn-border-strong);
  background: var(--scifn-teal-soft);
  transform: none;
}
.sc-primary-button:hover { border-color: var(--scifn-teal-hover); background: var(--scifn-teal-hover); transform: none; }
.sc-success-button:hover,
.sc-danger-button:hover { transform: none; }

.sc-lang-switch {
  gap: 0;
  padding: 0;
  border: 1px solid var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface);
  box-shadow: none;
  overflow: hidden;
}
.sc-lang-switch button {
  min-width: 39px;
  min-height: 32px;
  padding: 5px 8px;
  border-radius: 0;
  color: var(--scifn-muted);
  font-size: .74rem;
  font-weight: 720;
}
.sc-lang-switch button + button { border-inline-start: 1px solid var(--scifn-border); }
.sc-lang-switch button[aria-pressed="true"] {
  color: #fff;
  background: var(--scifn-compute-teal);
  box-shadow: none;
}

.sc-chip {
  min-height: 26px;
  padding: 3px 8px;
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-instrument-blue);
  border-color: var(--scifn-border);
  background: var(--scifn-surface-subtle);
  font-size: .72rem;
  font-weight: 700;
}
.sc-chip.orange { color: var(--scifn-orange-ink); border-color: #e7c8b2; background: var(--scifn-orange-soft); }
.sc-chip.teal { color: var(--scifn-deep-teal); border-color: #bdd8d4; background: var(--scifn-teal-soft); }
.sc-chip.red { color: var(--scifn-danger); border-color: #e8b9b5; background: #fcebea; }
.sc-chip.green { color: var(--scifn-success); border-color: #b9d8c8; background: #e8f4ee; }

/* Homepage: preserve the established information architecture and proportions. */
.portal-page { background: var(--scifn-canvas); }
.portal-page::before { display: none; }
.portal-nav {
  border-bottom: 1px solid var(--scifn-border);
  background: rgba(255, 255, 255, .97);
  box-shadow: none;
  backdrop-filter: none;
}
.portal-links a {
  border-radius: 5px;
  color: var(--scifn-muted);
  font-size: .8rem;
  font-weight: 680;
}
.portal-links a:hover {
  color: var(--scifn-deep-teal);
  background: var(--scifn-teal-soft);
}
.portal-hero { background: var(--scifn-canvas); }
.portal-eyebrow {
  color: var(--scifn-research-orange);
  font-size: .72rem;
  font-weight: 740;
  letter-spacing: .08em;
}
.portal-eyebrow::before {
  width: 24px;
  height: 2px;
  border-radius: 0;
  background: var(--scifn-research-orange);
}
.portal-hero h1 {
  color: var(--scifn-deep-teal);
  font-size: clamp(2.2rem, 4.5vw, 4rem);
  line-height: 1.04;
  letter-spacing: -.038em;
  font-weight: 680;
}
.portal-lead { color: var(--scifn-muted); }
.portal-access-note { color: var(--scifn-muted); font-weight: 620; }
.portal-access-note > span:first-child {
  position: relative;
  width: 14px;
  height: 11px;
  flex: 0 0 auto;
  border: 1.5px solid var(--scifn-muted);
  border-radius: 2px;
  color: transparent;
  font-size: 0;
}
.portal-access-note > span:first-child::before {
  content: "";
  position: absolute;
  left: 2px;
  top: -7px;
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--scifn-muted);
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
}
.portal-section { border-top: 1px solid var(--scifn-border); background: var(--scifn-surface-subtle); }
.portal-section-head h2,
.portal-research-copy h2 { color: var(--scifn-deep-teal); font-weight: 680; }
.module-card {
  border: 1px solid var(--scifn-border);
  border-inline-start: 3px solid transparent;
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
  transition: border-color .12s ease, background .12s ease;
}
.module-card:hover,
.module-card:focus-visible {
  border-color: var(--scifn-border-strong);
  border-inline-start-color: var(--scifn-research-orange);
  background: var(--scifn-surface);
  box-shadow: none;
  transform: none;
}
.module-icon,
.module-card.safety .module-icon,
.module-card.sop .module-icon,
.module-card.engineering .module-icon,
.module-card.activity-support .module-icon {
  width: 38px;
  height: 34px;
  border: 1px solid #bdd8d4;
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-deep-teal);
  background: var(--scifn-teal-soft);
  box-shadow: none;
  font-size: .72rem;
  font-weight: 760;
}
.module-card.activity-support .module-icon {
  color: var(--scifn-orange-ink);
  border-color: #e7c8b2;
  background: var(--scifn-orange-soft);
}
.module-card h3 { color: var(--scifn-deep-teal); font-weight: 680; }
.module-card p { color: var(--scifn-muted); }
.module-cta { color: var(--scifn-deep-teal); font-weight: 720; }
.module-cta span:last-child {
  border: 1px solid var(--scifn-border);
  border-radius: 50%;
  background: var(--scifn-surface-subtle);
}
.module-card:hover .module-cta span:last-child { transform: none; }
.portal-research-section { background: var(--scifn-canvas); }
.portal-research-panel {
  border: 1px solid var(--scifn-border);
  border-inline-start: 4px solid var(--scifn-research-orange);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
}
.portal-research-copy p { color: var(--scifn-muted); }
.portal-research-path li { border-color: var(--scifn-border); }
.portal-research-path span { color: var(--scifn-research-orange); font-family: var(--scifn-font-mono); }
.portal-research-path strong { color: var(--scifn-deep-teal); font-weight: 680; }
.portal-footer { border-color: var(--scifn-border); color: var(--scifn-muted); background: var(--scifn-surface); }

/* Protected access gate: same flow, restrained light-first presentation. */
.access-gate {
  color: var(--scifn-ink);
  background: var(--scifn-canvas);
}
.access-gate::before { display: none; }
.access-gate-topbar { border-bottom: 1px solid var(--scifn-border); }
.access-gate-topbar .sc-brand-copy strong { color: var(--scifn-deep-teal); }
.access-gate-topbar .sc-brand-copy span { color: var(--scifn-muted); }
.access-gate-topbar .sc-lang-switch {
  color: var(--scifn-ink);
  border-color: var(--scifn-border);
  background: var(--scifn-surface);
}
.access-gate-topbar .sc-lang-switch button { color: var(--scifn-muted); }
.access-gate-topbar .sc-lang-switch button[aria-pressed="true"] { color: #fff; background: var(--scifn-compute-teal); }
.access-gate-card {
  border: 1px solid var(--scifn-border);
  border-inline-start: 4px solid var(--scifn-research-orange);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
  backdrop-filter: none;
}
.access-lock-mark {
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border: 1px solid var(--scifn-border-strong);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface-subtle);
  box-shadow: none;
}
.access-lock-mark::before {
  left: 12px;
  top: 7px;
  width: 16px;
  height: 15px;
  border: 2px solid var(--scifn-deep-teal);
  border-bottom: 0;
  border-radius: 9px 9px 0 0;
}
.access-lock-mark::after {
  left: 9px;
  bottom: 7px;
  width: 22px;
  height: 18px;
  border: 0;
  border-radius: 3px;
  background: var(--scifn-research-orange);
  box-shadow: none;
}
.access-gate-card h1 { color: var(--scifn-deep-teal); font-weight: 680; }
.access-gate-card > p,
.access-gate-lead { color: var(--scifn-muted); }
.access-form > label { color: var(--scifn-ink); font-weight: 680; }
.access-input-row input {
  border-color: var(--scifn-border-strong);
  border-radius: var(--scifn-radius-control);
  box-shadow: none;
}
.access-input-row input:focus { border-color: var(--scifn-compute-teal); }
.access-input-row input[aria-invalid="true"] { border-color: var(--scifn-danger); box-shadow: none; }
.access-status {
  border: 1px solid #bdd8d4;
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-deep-teal);
  background: var(--scifn-teal-soft);
}
.access-status.is-error { border-color: #e8b9b5; color: var(--scifn-danger); background: #fcebea; }
.access-lock-button { position: relative; color: transparent; font-size: 0; }
.access-lock-button::before {
  content: "";
  width: 13px;
  height: 10px;
  border: 2px solid var(--scifn-deep-teal);
  border-radius: 2px;
}
.access-lock-button::after {
  content: "";
  position: absolute;
  left: 14px;
  top: 9px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--scifn-deep-teal);
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
}

/* Shared protected-module toolbar and library cards. */
.activity-header,
.module-toolbar,
.research-frontier-toolbar {
  border-bottom: 1px solid var(--scifn-border);
  background: rgba(255, 255, 255, .97);
  box-shadow: none;
  backdrop-filter: none;
}
.methodology-page,
.knowledge-page,
.research-frontier-page,
.safety-readiness-page,
.activity-page { background: var(--scifn-canvas); }
.module-library-hero {
  border: 1px solid var(--scifn-border);
  border-inline-start: 4px solid var(--scifn-research-orange);
  border-radius: var(--scifn-radius-panel);
  color: var(--scifn-ink);
  background: var(--scifn-surface);
  box-shadow: none;
}
.module-library-hero::before,
.module-library-hero::after { display: none; }
.module-library-hero .portal-eyebrow { color: var(--scifn-research-orange); }
.module-library-hero h1 { color: var(--scifn-deep-teal); font-weight: 680; }
.module-library-hero > p { color: var(--scifn-muted); }
.module-library-search input,
.knowledge-library-search input,
.module-search-input input,
.knowledge-search-input input,
.research-search-form input {
  border-color: var(--scifn-border-strong);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface);
  box-shadow: none;
}
.module-library-search input:focus,
.knowledge-library-search input:focus,
.module-search-input input:focus,
.knowledge-search-input input:focus,
.research-search-form input:focus {
  border-color: var(--scifn-compute-teal);
  outline-color: rgba(184, 92, 30, .34);
}
.module-library-search .sc-primary-button,
.knowledge-library-search .sc-primary-button { color: #fff; border-color: var(--scifn-compute-teal); background: var(--scifn-compute-teal); }
.module-library-stats > span { color: var(--scifn-muted); }
.module-library-stats b { color: var(--scifn-deep-teal); }
.module-section-head h2 { color: var(--scifn-deep-teal); font-weight: 680; }
.package-card,
.knowledge-package-card {
  border: 1px solid var(--scifn-border);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
}
.package-card:hover { border-color: var(--scifn-border-strong); box-shadow: none; transform: none; }
.package-card::before,
.knowledge-package-card::before { display: none; }
.package-version {
  color: var(--scifn-deep-teal);
  border-color: #bdd8d4;
  background: var(--scifn-teal-soft);
}
.package-card h3 { color: var(--scifn-deep-teal); font-weight: 680; }
.package-card > p,
.package-card .package-subtitle { color: var(--scifn-muted); }
.package-tags span {
  border: 1px solid var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-instrument-blue);
  background: var(--scifn-surface-subtle);
}
.package-card-metrics { border-color: var(--scifn-border); }
.package-card-metrics b,
.knowledge-book-metrics b { color: var(--scifn-deep-teal); }

/* Knowledge reader: preserve the two-column reader, clarify hierarchy and state. */
.knowledge-reader,
.knowledge-docs-reader { background: var(--scifn-canvas); }
.knowledge-book-sidebar,
.knowledge-docs-sidebar,
.knowledge-docs-toc,
.knowledge-page-toc {
  border-color: var(--scifn-border);
  background: var(--scifn-surface);
  box-shadow: none;
}
.knowledge-sidebar-head h2,
.knowledge-docs-article h1,
.knowledge-docs-article h2,
.knowledge-article h1,
.knowledge-article h2 { color: var(--scifn-deep-teal); }
.knowledge-docs-article h3,
.knowledge-article h3 { color: var(--scifn-ink); }
.knowledge-reading-column,
.knowledge-docs-main { background: var(--scifn-surface); }
.knowledge-toc-chapter,
.knowledge-toc-section,
.knowledge-toc-subsection-link,
.knowledge-docs-toc .knowledge-toc-section,
.knowledge-docs-toc .knowledge-toc-section-link,
.knowledge-docs-toc .knowledge-toc-subsection-link { border-radius: 0 var(--scifn-radius-control) var(--scifn-radius-control) 0; }
.knowledge-toc-chapter:hover,
.knowledge-toc-section:hover,
.knowledge-toc-subsection-link:hover,
.knowledge-docs-toc .knowledge-toc-section > summary:hover,
.knowledge-docs-toc .knowledge-toc-section-link:hover,
.knowledge-docs-toc .knowledge-toc-subsection-link:hover {
  color: var(--scifn-deep-teal);
  background: var(--scifn-teal-soft);
}
.knowledge-toc-chapter[aria-current="location"],
.knowledge-toc-section[aria-current="location"],
.knowledge-toc-subsection-link[aria-current="location"],
.knowledge-docs-toc .knowledge-toc-section > summary[aria-current="location"],
.knowledge-docs-toc .knowledge-toc-section-link[aria-current="location"],
.knowledge-docs-toc .knowledge-toc-subsection-link[aria-current="location"] {
  color: var(--scifn-deep-teal);
  border-inline-start: 3px solid var(--scifn-research-orange);
  background: var(--scifn-teal-soft);
}
.knowledge-docs-article .cover,
.knowledge-article .hero-panel,
.knowledge-docs-article .callout,
.knowledge-docs-article .example,
.knowledge-docs-article .output,
.knowledge-docs-article details.knowledge-question,
.knowledge-docs-article .knowledge-assessment,
.knowledge-article .mermaid,
.knowledge-article .mermaid-js {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface-subtle);
  box-shadow: none;
}
.knowledge-docs-article .cover,
.knowledge-docs-article .callout { border-inline-start: 4px solid var(--scifn-research-orange); }
.knowledge-docs-article .callout.warning { border-inline-start-color: var(--scifn-warning); background: #f8f2db; }
.knowledge-docs-article .callout.success { border-inline-start-color: var(--scifn-success); background: #e8f4ee; }
.knowledge-docs-article .pill,
.knowledge-docs-article .status { border-radius: var(--scifn-radius-control); }
.knowledge-docs-article pre,
.knowledge-article pre { border-radius: var(--scifn-radius-panel); background: var(--scifn-code); box-shadow: none; }
.knowledge-docs-article table,
.knowledge-article table { border-color: var(--scifn-border); }
.knowledge-docs-article th,
.knowledge-article th { color: var(--scifn-muted); background: var(--scifn-surface-subtle); }
.knowledge-docs-article .knowledge-option { border-color: var(--scifn-border); border-radius: var(--scifn-radius-control); background: var(--scifn-surface); }
.knowledge-docs-article .knowledge-option:hover { border-color: var(--scifn-border-strong); background: var(--scifn-teal-soft); }
.knowledge-docs-article .knowledge-option:has(input:checked) { border-color: var(--scifn-compute-teal); background: var(--scifn-teal-soft); }
.knowledge-search-dialog,
.knowledge-progress-dialog,
.module-search-dialog {
  border: 1px solid var(--scifn-border);
  border-radius: var(--scifn-radius-overlay);
  box-shadow: var(--scifn-shadow-overlay);
}
.knowledge-search-dialog::backdrop,
.knowledge-progress-dialog::backdrop,
.module-search-dialog::backdrop { background: rgba(23, 32, 29, .5); backdrop-filter: none; }
.knowledge-search-result,
.module-search-result {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface);
}
.knowledge-search-result:hover,
.module-search-result:hover { border-color: var(--scifn-border-strong); background: var(--scifn-teal-soft); }

/* Research frontiers: editorial reading path rather than promotional cards. */
.research-frontier-hero,
.research-path-section,
.research-papers-section {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
}
.research-frontier-hero { border-inline-start: 4px solid var(--scifn-research-orange); }
.research-frontier-hero h1,
.research-path-section h2,
.research-papers-section h2 { color: var(--scifn-deep-teal); font-weight: 680; }
.research-frontier-intro { color: var(--scifn-muted); }
.research-direction-list span,
.research-paper-tags span {
  border: 1px solid var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-instrument-blue);
  background: var(--scifn-surface-subtle);
}
.research-path-card {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
  transition: border-color .12s ease, background .12s ease;
}
.research-path-card:hover { border-color: var(--scifn-border-strong); background: var(--scifn-surface-subtle); }
.research-path-card.is-active {
  border-color: var(--scifn-border-strong);
  border-inline-start: 4px solid var(--scifn-research-orange);
  background: var(--scifn-teal-soft);
  box-shadow: none;
}
.research-path-number { color: var(--scifn-research-orange); }
.research-path-card strong,
.research-paper-card h3 { color: var(--scifn-deep-teal); }
.research-view-toggle {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface-subtle);
}
.research-view-toggle button { border-radius: 4px; }
.research-view-toggle button[aria-pressed="true"] { color: #fff; background: var(--scifn-compute-teal); }
.research-filter-row button {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-muted);
  background: var(--scifn-surface);
}
.research-filter-row button[aria-pressed="true"] {
  color: var(--scifn-deep-teal);
  border-color: #bdd8d4;
  background: var(--scifn-teal-soft);
}
.research-paper-list,
.research-paper-card.is-list,
.research-paper-card.is-report,
.research-paper-report-grid section,
.research-frontier-disclaimer { border-color: var(--scifn-border); }
.research-paper-links a,
.research-paper-card footer a { color: var(--scifn-instrument-blue); }

/* Safety Readiness: workflow hierarchy and explicit trust/status signals. */
.safety-intro > div,
.safety-intro > aside,
.safety-panel,
.safety-tabs button,
.safety-question,
.safety-signature,
.safety-import-columns > section,
.safety-summary-grid > div {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
}
.safety-intro > div { border-inline-start: 4px solid var(--scifn-research-orange); }
.safety-intro h1,
.safety-panel-head h2,
.safety-form-section h3,
.safety-step h3,
.safety-import-columns h3 { color: var(--scifn-deep-teal); font-weight: 680; }
.safety-intro p,
.safety-panel-head p,
.safety-form-section > p,
.safety-step > p { color: var(--scifn-muted); }
.safety-intro aside { border-inline-start: 4px solid var(--scifn-danger); }
.safety-tabs button {
  border-inline-start: 3px solid transparent;
  transition: border-color .12s ease, background .12s ease;
}
.safety-tabs button:hover { border-color: var(--scifn-border-strong); background: var(--scifn-surface-subtle); transform: none; }
.safety-tabs button.is-active {
  border-color: var(--scifn-border-strong);
  border-inline-start-color: var(--scifn-research-orange);
  background: var(--scifn-teal-soft);
  box-shadow: none;
}
.safety-tabs button > span,
.safety-panel-head > div:first-child > span { color: var(--scifn-research-orange); font-family: var(--scifn-font-mono); }
.safety-tabs strong { color: var(--scifn-deep-teal); }
.safety-tabs small { color: var(--scifn-muted); }
.safety-panel-head,
.safety-form-section + .safety-form-section,
.safety-step + .safety-step { border-color: var(--scifn-border); }
.safety-notice,
.safety-duty-notice {
  border-inline-start-color: var(--scifn-research-orange);
  color: var(--scifn-orange-ink);
  background: var(--scifn-orange-soft);
}
.safety-field > span { color: var(--scifn-ink); font-weight: 680; }
.safety-field input,
.safety-field select,
.safety-field textarea,
.safety-step > input[type="file"] {
  border-color: var(--scifn-border-strong);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface);
  box-shadow: none;
}
.safety-field input:focus,
.safety-field select:focus,
.safety-field textarea:focus,
.safety-step > input[type="file"]:focus { border-color: var(--scifn-compute-teal); box-shadow: none; }
.safety-check,
.safety-final-confirm,
.safety-answer,
.safety-clause {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface);
}
.safety-check:hover,
.safety-answer:hover { border-color: var(--scifn-border-strong); background: var(--scifn-teal-soft); }
.safety-status { border: 1px solid var(--scifn-border); border-radius: var(--scifn-radius-control); }
.safety-status.is-info { color: var(--scifn-instrument-blue); background: #eaf0f4; }
.safety-status.is-success { color: var(--scifn-success); background: #e8f4ee; }
.safety-status.is-warning { color: var(--scifn-warning); background: #f8f2db; }
.safety-status.is-error { color: var(--scifn-danger); background: #fcebea; }
.safety-sticky-actions { border-color: var(--scifn-border); background: rgba(255, 255, 255, .97); box-shadow: none; backdrop-filter: none; }

/* Support tools: retain data-dense forms and tables, remove presentation weight. */
.activity-page { background: var(--scifn-canvas); }
.activity-hero,
.activity-hero.activity-hero-compact {
  border: 1px solid var(--scifn-border);
  border-inline-start: 4px solid var(--scifn-research-orange);
  border-radius: var(--scifn-radius-panel);
  color: var(--scifn-ink);
  background: var(--scifn-surface);
  box-shadow: none;
}
.activity-hero h1,
.activity-hero.activity-hero-compact h1 { color: var(--scifn-deep-teal); font-weight: 680; }
.activity-hero p,
.activity-hero.activity-hero-compact p { color: var(--scifn-muted); }
.activity-hero .slide-kicker,
.activity-hero.activity-hero-compact .slide-kicker { color: var(--scifn-research-orange); }
.activity-principles span {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-muted);
  background: var(--scifn-surface-subtle);
}
.activity-tabs {
  border: 1px solid var(--scifn-border);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
  overflow: hidden;
}
.activity-tabs button {
  border-radius: 0;
  color: var(--scifn-muted);
  background: var(--scifn-surface);
}
.activity-tabs button:hover { color: var(--scifn-deep-teal); background: var(--scifn-teal-soft); }
.activity-tabs button[aria-selected="true"],
.activity-tabs button.is-active {
  color: #fff;
  background: var(--scifn-compute-teal);
  box-shadow: inset 3px 0 0 var(--scifn-research-orange);
}
.activity-card,
.activity-form-card,
.activity-management-block,
.activity-management-sections,
.activity-import-summary,
.activity-readonly-output,
.report-detail-card,
.report-import-card,
.report-progress-block,
.report-score-block,
.report-meeting-block,
.report-points-block,
.report-attendance-wrap,
.activity-empty-state {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-panel);
  background: var(--scifn-surface);
  box-shadow: none;
}
.activity-management-sections { border: 0; background: transparent; }
.activity-management-block { background: var(--scifn-surface); }
.activity-panel-head,
.activity-subtool-head,
.activity-results-head { border-color: var(--scifn-border); }
.activity-panel-head h2,
.activity-subtool-head h3,
.report-meeting-head h4,
.report-points-block h4 { color: var(--scifn-deep-teal); font-weight: 680; }
.activity-subtool-head small { color: var(--scifn-research-orange); }
.activity-panel-head p,
.activity-subtool-head p,
.report-meeting-head p { color: var(--scifn-muted); }
.activity-field label,
.activity-label { color: var(--scifn-ink); font-weight: 680; }
.activity-field input,
.activity-field select,
.activity-field textarea,
.activity-form-card input,
.activity-form-card select,
.activity-form-card textarea,
.report-meeting-table input,
.report-meeting-table select,
.report-meeting-table textarea {
  border-color: var(--scifn-border-strong);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface);
  box-shadow: none;
}
.activity-field input:focus,
.activity-field select:focus,
.activity-field textarea:focus,
.activity-form-card input:focus,
.activity-form-card select:focus,
.activity-form-card textarea:focus,
.report-meeting-table input:focus,
.report-meeting-table select:focus,
.report-meeting-table textarea:focus { border-color: var(--scifn-compute-teal); box-shadow: none; }
.activity-table-wrap,
.report-attendance-wrap,
.report-meeting-wrap { border-color: var(--scifn-border); border-radius: var(--scifn-radius-panel); box-shadow: none; }
.activity-data-table,
.report-attendance-table,
.report-meeting-table,
.report-stage-week-table,
.report-stage-meeting-table,
.report-stage-score-table,
.report-monthly-review-table { border-color: var(--scifn-border); }
.activity-data-table th,
.report-attendance-table th,
.report-meeting-table th,
.report-stage-week-table th,
.report-stage-meeting-table th,
.report-stage-score-table th,
.report-monthly-review-table th {
  color: var(--scifn-muted);
  border-color: var(--scifn-border);
  background: var(--scifn-surface-subtle);
}
.activity-data-table td,
.report-attendance-table td,
.report-meeting-table td,
.report-stage-week-table td,
.report-stage-meeting-table td,
.report-stage-score-table td,
.report-monthly-review-table td { border-color: var(--scifn-border); }
.report-meeting-table tr.is-confirmed { background: var(--scifn-teal-soft) !important; }
.report-points-confirmation,
.report-score-evaluation,
.report-week-display {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  color: var(--scifn-deep-teal);
  background: var(--scifn-surface-subtle);
}
.report-points-confirmation.is-required,
.report-score-evaluation {
  border-color: #e7c8b2;
  color: var(--scifn-orange-ink);
  background: var(--scifn-orange-soft);
}
.report-points-confirmation.is-confirmed { border-color: #bdd8d4; background: var(--scifn-teal-soft); }
.activity-status { border: 1px solid var(--scifn-border); border-radius: var(--scifn-radius-control); }
.activity-signature-dialog,
.activity-dialog,
.deck-dialog {
  border: 1px solid var(--scifn-border);
  border-radius: var(--scifn-radius-overlay);
  box-shadow: var(--scifn-shadow-overlay);
}
.activity-signature-dialog::backdrop,
.activity-dialog::backdrop,
.deck-dialog::backdrop { background: rgba(23, 32, 29, .5); backdrop-filter: none; }

/* Presentation shell: keep authored slide content, align only the frame and controls. */
.deck-page { background: var(--scifn-code); }
.deck-toolbar,
.deck-bottom { border-color: rgba(255, 255, 255, .16); background: #17201d; backdrop-filter: none; }
.deck-toolbar .sc-brand-mark { border-color: #fff; background: transparent; }
.deck-toolbar .sc-brand-mark::after { border-color: #17201d; }
.deck-toolbar .sc-icon-button,
.deck-toolbar .sc-ghost-button,
.deck-toolbar .sc-lang-switch,
.deck-nav-button {
  border-color: rgba(255, 255, 255, .22);
  border-radius: var(--scifn-radius-control);
  color: #fff;
  background: transparent;
  box-shadow: none;
}
.deck-workspace::before { display: none; }
.deck-stage {
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--scifn-radius-panel);
  box-shadow: none;
}
.deck-progress { background: rgba(255, 255, 255, .16); }
.deck-progress > span { background: var(--scifn-research-orange); }
.deck-outline button {
  border-color: var(--scifn-border);
  border-radius: var(--scifn-radius-control);
  background: var(--scifn-surface);
}
.deck-outline button:hover,
.deck-outline button[aria-current="true"] {
  border-color: var(--scifn-border-strong);
  background: var(--scifn-teal-soft);
}
.deck-outline b { border-radius: 4px; color: var(--scifn-deep-teal); background: var(--scifn-teal-soft); }

/* Small-screen geometry stays compact without changing responsive flow. */
@media (max-width: 759px) {
  .sc-shell { width: min(100% - 24px, var(--sc-max)); }
  .sc-topbar { min-height: 56px; }
  .sc-brand-mark { width: 25px; height: 25px; }
  .module-card,
  .portal-research-panel,
  .module-library-hero,
  .package-card,
  .research-frontier-hero,
  .research-path-section,
  .research-papers-section,
  .safety-intro > div,
  .safety-intro > aside,
  .safety-panel,
  .activity-hero,
  .activity-hero.activity-hero-compact,
  .activity-card,
  .activity-form-card,
  .activity-management-block { border-radius: var(--scifn-radius-panel); }
  .access-gate-shell { width: min(100% - 24px, 680px); }
  .access-gate-card { border-radius: var(--scifn-radius-panel); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
}