/* ═══════════════════════════════════════════════════════════════
   OL-UI-000001 — Oleren Learn design system
   ───────────────────────────────────────────────────────────────
   WHAT:  Every token, component and motion rule for the platform.
   WHY:   Hand-authored rather than generated. A utility framework
          would add a build step for the customer and push the
          design toward a recognisable default look. This file is
          ~20KB, ships compiled, and needs no toolchain.
   NOTE:  No inline styles are used anywhere in the platform, so the
          Content-Security-Policy can stay strict. Anything dynamic
          is expressed as a class or a custom property set here.
          See OL-CORE-000004.
   ═══════════════════════════════════════════════════════════════ */

/* ─── Typography runtime ───────────────────────────────────────
   Oleren Core uses operating-system font stacks only. Optional
   typography/theme plugins may supply separately licensed fonts.
   ─────────────────────────────────────────────────────────────── */

/* Token definitions moved to assets/tokens.css in 1.0.14. */

/* Reset and layout foundation moved to assets/base.css and assets/layout.css in 1.0.14. */

/* ─── Type helpers ───────────────────────────────────────────── */
.muted     { color: var(--text-muted); }
.faint     { color: var(--text-faint); }
.small     { font-size: var(--t-sm); }
.xs        { font-size: var(--t-xs); }
.lead      { font-size: var(--t-md); color: var(--text-muted); line-height: 1.65; }
.strong    { font-weight: 600; }
.center    { text-align: center; }
.right     { text-align: right; }
.nowrap    { white-space: nowrap; }
.truncate  { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--signal-dim);
  margin-bottom: var(--s-2);
}

/* ─── Buttons ────────────────────────────────────────────────── */
.btn {
  --btn-bg: var(--deep);
  --btn-fg: var(--text-invert);
  --btn-bd: var(--deep);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);

  font-family: var(--font-body);
  font-size: var(--t-base);
  font-weight: 600;
  line-height: 1;

  padding: 0.75rem 1.375rem;
  border-radius: var(--r-button);
  border: 1px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);

  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-1);
  color: var(--btn-fg);
}
.btn:active { transform: translateY(0); box-shadow: none; }

.btn[disabled], .btn.is-disabled {
  opacity: .5;
  pointer-events: none;
}

.btn-primary { --btn-bg: var(--signal); --btn-bd: var(--signal); --btn-fg: #04302B; }
.btn-primary:hover { --btn-bg: var(--signal-dim); --btn-bd: var(--signal-dim); }

.btn-ghost {
  --btn-bg: transparent;
  --btn-fg: var(--deep);
  --btn-bd: var(--line-strong);
}
.btn-ghost:hover { --btn-bd: var(--deep); --btn-bg: var(--deep-wash); }

.btn-quiet {
  --btn-bg: transparent;
  --btn-fg: var(--text-muted);
  --btn-bd: transparent;
}
.btn-quiet:hover { --btn-fg: var(--deep); --btn-bg: var(--line-soft); box-shadow: none; }

.btn-danger { --btn-bg: var(--danger); --btn-bd: var(--danger); --btn-fg: #fff; }

.btn-sm { padding: 0.5rem 0.875rem; font-size: var(--t-sm); }
.btn-lg { padding: 0.9375rem 2rem; font-size: var(--t-md); }
.btn-block { display: flex; width: 100%; }

/* ─── Cards & panels ─────────────────────────────────────────── */
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  padding: var(--s-5);
}
.card-flush { padding: 0; overflow: hidden; }
.card-lift  { box-shadow: var(--shadow-1); border-color: var(--line-soft); }

.card-hover {
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--line-strong);
}

.card-head {
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
}
.card-head h2, .card-head h3 { margin: 0; font-size: var(--t-md); }
.card-body { padding: var(--s-5); }
.card-foot {
  padding: var(--s-4) var(--s-5);
  border-top: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--sand) 40%, var(--paper));
}

/* Statistic tile */
.stat { display: flex; flex-direction: column; gap: var(--s-1); }
.stat-label {
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.stat-value {
  font-family: var(--font-display);
  font-size: var(--t-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.1;
}
.stat-note { font-size: var(--t-sm); color: var(--text-muted); }

/* ─── Forms ──────────────────────────────────────────────────── */
.field { display: block; margin-bottom: var(--s-4); }
.field:last-child { margin-bottom: 0; }

.label {
  display: block;
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--s-2);
}
.label .req { color: var(--danger); margin-left: 2px; }

.hint { font-size: var(--t-sm); color: var(--text-muted); margin-top: var(--s-2); }

.input, .select, .textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--t-base);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-input);
  padding: 0.6875rem 0.875rem;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.input::placeholder, .textarea::placeholder { color: var(--text-faint); }

.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-wash);
}

.input.is-invalid, .select.is-invalid, .textarea.is-invalid {
  border-color: var(--danger);
}
.input.is-invalid:focus { box-shadow: 0 0 0 3px var(--danger-wash); }

.textarea { min-height: 110px; resize: vertical; }

.select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%235A6B7B' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round' d='M1 1.5 6 6.5l5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.25rem;
}

.input-mono { font-family: var(--font-mono); letter-spacing: -0.01em; }

.error-text {
  font-size: var(--t-sm);
  color: var(--danger);
  margin-top: var(--s-2);
  font-weight: 500;
}

/* Checkbox & radio */
.check {
  display: flex;
  align-items: flex-start;
  gap: var(--s-3);
  padding: var(--s-3);
  border: 1px solid var(--line);
  border-radius: var(--r-input);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.check:hover { border-color: var(--line-strong); background: var(--line-soft); }
.check input { margin: 0.2rem 0 0; accent-color: var(--signal); width: 1rem; height: 1rem; flex: none; }
.check-text { font-size: var(--t-sm); line-height: 1.45; }
.check-text b { display: block; font-weight: 600; color: var(--ink); }

.check-plain {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  border: 0;
  padding: 0;
  background: none;
  font-size: var(--t-sm);
}
.check-plain:hover { background: none; }

/* Segmented control — used for the transition picker */
.segment { display: inline-flex; gap: 4px; padding: 4px; background: var(--line-soft); border-radius: var(--r-pill); }
.segment label {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4375rem 1rem;
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--text-muted);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.segment input { position: absolute; opacity: 0; pointer-events: none; }
.segment input:checked + span { color: var(--ink); }
.segment label:has(input:checked) { background: var(--paper); color: var(--ink); box-shadow: var(--shadow-1); }

/* ─── Badges, chips, pills ───────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .02em;
  padding: 0.25rem 0.625rem;
  border-radius: var(--r-pill);
  background: var(--line-soft);
  color: var(--text-muted);
  white-space: nowrap;
}
.badge-success { background: var(--success-wash); color: var(--success); }
.badge-danger  { background: var(--danger-wash);  color: var(--danger); }
.badge-info    { background: var(--info-wash);    color: var(--info); }
.badge-amber   { background: var(--amber-wash);   color: #8A5F14; }
.badge-signal  { background: var(--signal-wash);  color: #0B6F63; }
.badge-neutral { background: var(--line-soft);    color: var(--text-muted); }

.badge-dot::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--t-sm);
  padding: 0.3125rem 0.625rem;
  border-radius: var(--r-chip);
  background: var(--deep-wash);
  color: var(--deep);
  font-weight: 500;
}

.kbd {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  padding: 0.125rem 0.375rem;
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--paper);
  color: var(--text-muted);
}

/* ─── Alerts ─────────────────────────────────────────────────── */
.alert {
  display: flex;
  gap: var(--s-3);
  padding: var(--s-4);
  border-radius: var(--r-input);
  border: 1px solid transparent;
  font-size: var(--t-base);
  margin-bottom: var(--s-4);
}
.alert:last-child { margin-bottom: 0; }
.alert p:last-child { margin-bottom: 0; }
.alert-icon { flex: none; margin-top: 1px; }

.alert-success { background: var(--success-wash); border-color: color-mix(in srgb, var(--success) 22%, transparent); color: #0F4527; }
.alert-danger  { background: var(--danger-wash);  border-color: color-mix(in srgb, var(--danger) 22%, transparent);  color: #7A1A15; }
.alert-info    { background: var(--info-wash);    border-color: color-mix(in srgb, var(--info) 22%, transparent);    color: #123F5E; }
.alert-warn    { background: var(--amber-wash);   border-color: color-mix(in srgb, var(--amber) 30%, transparent);   color: #7A5312; }

/* ─── Tables ─────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--r-card); }

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--t-sm);
}
.table th {
  text-align: left;
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--sand) 35%, var(--paper));
  white-space: nowrap;
}
.table td {
  padding: var(--s-3) var(--s-4);
  border-bottom: 1px solid var(--line-soft);
  vertical-align: middle;
}
.table tbody tr { transition: background-color var(--dur) var(--ease); }
.table tbody tr:hover { background: color-mix(in srgb, var(--sand) 30%, var(--paper)); }
.table tbody tr:last-child td { border-bottom: 0; }
.table .col-actions { text-align: right; white-space: nowrap; }
.table .col-tight { width: 1%; white-space: nowrap; }

.table-indent { padding-left: var(--s-5); position: relative; }
.table-indent::before {
  content: '';
  position: absolute;
  left: var(--s-3);
  top: 50%;
  width: 10px;
  height: 1px;
  background: var(--line-strong);
}

/* ─── Empty state ────────────────────────────────────────────── */
.empty {
  text-align: center;
  padding: var(--s-8) var(--s-5);
  color: var(--text-muted);
}
.empty h3 { color: var(--ink); margin-bottom: var(--s-2); }

/* ─── Public site ────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--sand) 82%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.site-header .shell {
  display: flex;
  align-items: center;
  gap: var(--s-5);
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-display);
  font-size: var(--t-md);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}
.brand:hover { color: var(--ink); }

.brand-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--deep), var(--signal));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: var(--t-sm);
  font-weight: 800;
  letter-spacing: -0.03em;
  flex: none;
}

/* ─── OL-UI-000056 ─────────────────────────────────────────────
   Responsive public navigation. Desktop keeps the familiar header
   footprint but uses the admin menu's dark rounded surface, hover and
   current-page language. At tablet/mobile widths the same resolved
   menu tree moves into an admin-style off-canvas drawer.
   ─────────────────────────────────────────────────────────────── */
.public-header-shell { min-width: 0; }
.public-brand { flex: none; }

.public-nav {
  display: flex;
  align-items: center;
  min-width: 0;
}
.public-nav-surface {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid #1D3D58;
  border-radius: 14px;
  background: var(--ink);
  box-shadow: var(--shadow-1);
}

.public-menu-link,
.public-menu-group > summary {
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.public-menu-link-desktop,
.public-menu-group-desktop > summary {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  min-height: 38px;
  padding: .55rem .78rem;
  border-radius: var(--r-input);
  color: var(--c-nav-text-muted);
  font-size: var(--t-sm);
  font-weight: 500;
  white-space: nowrap;
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}
.public-menu-link-desktop:hover,
.public-menu-group-desktop > summary:hover,
.public-menu-group-desktop > summary:focus-visible {
  background: #16324B;
  color: #fff;
}
.public-menu-link-desktop:focus-visible,
.public-menu-group-desktop > summary:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 2px;
}
.public-menu-link-desktop.is-current,
.public-menu-group-desktop > summary.is-current {
  background: var(--deep);
  color: #fff;
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--signal);
}
.public-menu-link-desktop.is-current .icon,
.public-menu-group-desktop > summary.is-current .icon { color: var(--signal); }

.public-menu-group { position: relative; margin: 0; }
.public-menu-group > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
}
.public-menu-group > summary::-webkit-details-marker { display: none; }
.public-menu-chevron {
  margin-left: auto;
  display: inline-block;
  font-size: 1.18rem;
  line-height: 1;
  transition: transform var(--dur) var(--ease);
}
.public-menu-group[open] > summary .public-menu-chevron { transform: rotate(90deg); }

.public-menu-group-desktop > .public-menu-children {
  position: absolute;
  top: calc(100% + 9px);
  left: 0;
  z-index: 65;
  display: none;
  min-width: 220px;
  max-width: min(320px, 88vw);
  padding: 6px;
  border: 1px solid #244868;
  border-radius: 14px;
  background: var(--ink);
  box-shadow: var(--shadow-2);
}
.public-menu-group-desktop[open] > .public-menu-children {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.public-menu-group-desktop .public-menu-link,
.public-menu-group-desktop .public-menu-group > summary {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  width: 100%;
  padding: .62rem .72rem;
  border-radius: var(--r-input);
  color: var(--c-nav-text-muted);
  font-size: var(--t-sm);
  font-weight: 500;
}
.public-menu-group-desktop .public-menu-link:hover,
.public-menu-group-desktop .public-menu-group > summary:hover {
  background: #16324B;
  color: #fff;
}
.public-menu-group-desktop .public-menu-link.is-current {
  background: var(--deep);
  color: #fff;
  font-weight: 600;
}

.public-header-actions {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  min-width: 0;
}
.public-account-summary {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  min-width: 0;
}
.public-account-name {
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-muted);
  font-size: var(--t-sm);
  font-weight: 600;
}
.public-signout-form { margin: 0; }

/* OL-UI-000057 — desktop header density repair. Account destinations live
   behind one deliberate disclosure instead of competing with primary nav. */
.public-account-menu { position: relative; margin: 0; flex: none; }
.public-account-menu > summary { list-style: none; }
.public-account-menu > summary::-webkit-details-marker { display: none; }
.public-account-trigger {
  display: flex; align-items: center; gap: var(--s-2); min-height: 42px;
  max-width: 190px; padding: 4px 10px 4px 5px; border: 1px solid var(--line);
  border-radius: 999px; background: var(--paper); cursor: pointer; user-select: none;
}
.public-account-trigger:hover { border-color: var(--line-strong); background: var(--deep-wash); }
.public-account-trigger:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; }
.public-account-chevron { font-size: 1.15rem; line-height: 1; transform: rotate(90deg); transition: transform var(--dur) var(--ease); }
.public-account-menu[open] .public-account-chevron { transform: rotate(-90deg); }
.public-account-popover {
  position: absolute; top: calc(100% + 9px); right: 0; z-index: 70; width: 230px;
  padding: 7px; border: 1px solid var(--line); border-radius: 16px; background: var(--paper);
  box-shadow: var(--shadow-2);
}
.public-account-link, .public-account-signout {
  display: flex; align-items: center; gap: var(--s-2); width: 100%; min-height: 42px;
  padding: .62rem .72rem; border: 0; border-radius: 10px; background: transparent;
  color: var(--ink); font: inherit; font-size: var(--t-sm); text-align: left; text-decoration: none; cursor: pointer;
}
.public-account-link:hover, .public-account-signout:hover { background: var(--deep-wash); color: var(--deep); }
.public-account-signout { color: var(--danger); border-top: 1px solid var(--line); border-radius: 0 0 10px 10px; margin-top: 4px; }

@media (min-width: 1024px) and (max-width: 1199px) {
  .site-header .shell { gap: var(--s-3); }
  .public-menu-link-desktop, .public-menu-group-desktop > summary { padding-inline: .62rem; }
  .public-account-name { display: none; }
  .public-account-trigger { padding-right: 7px; }
}

.public-menu-toggle,
.public-drawer,
.public-drawer-backdrop { display: none; }

/* Mobile public drawer mirrors the admin menu behaviour and visual
   hierarchy, but keeps learner/account actions in a separate footer. */
@media (max-width: 1023px) {
  .site-header .shell {
    height: 64px;
    gap: var(--s-3);
  }

  .public-nav,
  .public-header-actions { display: none; }

  .public-menu-toggle {
    width: 42px;
    height: 42px;
    flex: none;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: var(--r-input);
    background: var(--paper);
    color: var(--deep);
    box-shadow: var(--shadow-1);
    cursor: pointer;
    transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  }
  .public-menu-toggle:hover { background: var(--deep-wash); border-color: var(--line-strong); }
  .public-menu-toggle:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; }

  .public-drawer {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 80;
    width: min(86vw, 340px);
    height: 100dvh;
    padding: var(--s-5) var(--s-4);
    display: flex;
    flex-direction: column;
    gap: var(--s-5);
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: var(--ink);
    color: #C8D6E2;
    box-shadow: var(--shadow-2);
    transform: translateX(-102%);
    visibility: hidden;
    transition:
      transform var(--dur) var(--ease),
      visibility 0s linear var(--dur);
  }
  .public-drawer.is-open {
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
  }

  .public-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--s-3);
  }
  .public-drawer-brand { color: #fff; min-width: 0; }
  .public-drawer-brand:hover { color: #fff; }

  .public-drawer-close {
    width: 40px;
    height: 40px;
    flex: none;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--c-drawer-border);
    border-radius: var(--r-input);
    background: var(--c-drawer-close-bg);
    color: var(--c-drawer-close-text);
    cursor: pointer;
  }
  .public-drawer-close:hover { background: #173B59; color: #fff; }
  .public-drawer-close:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; }

  .public-drawer-section {
    margin: 0 0 var(--s-2);
    padding: 0 var(--s-3);
    color: var(--c-nav-text-muted);
    font-size: var(--t-xs);
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
  }
  .public-drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .public-menu-link-drawer,
  .public-menu-group-drawer > summary {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    width: 100%;
    padding: .68rem var(--s-3);
    border-radius: var(--r-input);
    color: var(--c-nav-text-muted);
    font-size: var(--t-sm);
    font-weight: 500;
    text-decoration: none;
    transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .public-menu-group-drawer > summary { font-weight: 600; }
  .public-menu-link-drawer:hover,
  .public-menu-group-drawer > summary:hover,
  .public-menu-group-drawer > summary:focus-visible {
    background: #16324B;
    color: #fff;
  }
  .public-menu-link-drawer:focus-visible,
  .public-menu-group-drawer > summary:focus-visible {
    outline: 3px solid var(--signal);
    outline-offset: 2px;
  }
  .public-menu-link-drawer.is-current,
  .public-menu-group-drawer > summary.is-current {
    background: var(--deep);
    color: #fff;
    font-weight: 600;
  }
  .public-menu-link-drawer.is-current .icon,
  .public-menu-group-drawer > summary.is-current .icon { color: var(--signal); }

  .public-menu-group-drawer > .public-menu-children {
    display: none;
    flex-direction: column;
    gap: 2px;
    padding: 3px 0 5px;
  }
  .public-menu-group-drawer[open] > .public-menu-children { display: flex; }
  .public-menu-link-drawer.is-sub {
    position: relative;
    padding-left: calc(var(--s-3) + 27px);
  }
  .public-menu-link-drawer.is-sub::before {
    content: '';
    position: absolute;
    left: 19px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--c-nav-text-muted) 62%, transparent);
  }
  .public-menu-link-drawer.is-sub.is-current::before { background: var(--signal); }

  .public-drawer-foot {
    margin-top: auto;
    padding-top: var(--s-4);
    border-top: 1px solid color-mix(in srgb, var(--c-nav-text) 14%, transparent);
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
    color: var(--c-nav-text-muted);
  }
  .public-drawer-user {
    display: flex;
    align-items: center;
    gap: var(--s-3);
    color: #fff;
  }
  .public-drawer-user .xs {
    display: block;
    margin-top: 2px;
    color: #7F9AB0;
  }
  .public-drawer-account-links {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .public-drawer-account-links a,
  .public-drawer-signout {
    width: 100%;
    display: flex;
    align-items: center;
    gap: var(--s-3);
    padding: .62rem var(--s-3);
    border: 0;
    border-radius: var(--r-input);
    background: transparent;
    color: var(--c-nav-text-muted);
    font: inherit;
    font-size: var(--t-sm);
    text-align: left;
    text-decoration: none;
    cursor: pointer;
  }
  .public-drawer-account-links a:hover,
  .public-drawer-signout:hover { background: #16324B; color: #fff; }
  .public-drawer-cta { width: 100%; justify-content: center; }
  .public-drawer-version { color: #58748D; }

  .public-drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 70;
    display: block;
    border: 0;
    padding: 0;
    background: rgba(5, 18, 31, .52);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity var(--dur) var(--ease),
      visibility 0s linear var(--dur);
  }
  .public-drawer-backdrop.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  body.public-menu-open { overflow: hidden; }
}

@media (max-width: 520px) {
  .public-brand > span:last-child {
    max-width: 46vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .public-drawer,
  .public-drawer-backdrop,
  .public-menu-chevron { transition: none; }
}

/* Hero */
.hero {
  position: relative;
  padding: var(--s-9) 0 var(--s-8);
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  inset: auto -20% -60% 40%;
  height: 520px;
  background: radial-gradient(ellipse at center, color-mix(in srgb, var(--signal) 16%, transparent) 0%, transparent 68%);
  pointer-events: none;
  z-index: 0;
}
.hero > * { position: relative; z-index: 1; }

.hero h1 {
  font-size: clamp(2.25rem, 5.5vw, var(--t-3xl));
  max-width: 17ch;
  margin-bottom: var(--s-4);
}
.hero .lead { max-width: 54ch; font-size: var(--t-md); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }

.underline-signal {
  background-image: linear-gradient(transparent 62%, color-mix(in srgb, var(--signal) 38%, transparent) 0);
  background-repeat: no-repeat;
}

.feature-icon {
  width: 42px; height: 42px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--signal-wash);
  color: var(--signal-dim);
  margin-bottom: var(--s-3);
  flex: none;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--s-6) 0;
  margin-top: var(--s-9);
  font-size: var(--t-sm);
  color: var(--text-muted);
}
.site-footer .shell { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); flex-wrap: wrap; }
.site-footer a { color: var(--text-muted); }

/* ─── Auth screens ───────────────────────────────────────────── */
.auth {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--s-6) var(--s-4);
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, color-mix(in srgb, var(--signal) 12%, transparent), transparent 70%),
    var(--sand);
}
.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow-2);
  padding: var(--s-6);
}
.auth-head { text-align: center; margin-bottom: var(--s-6); }
.auth-head .brand { justify-content: center; margin-bottom: var(--s-4); }
.auth-head h1 { font-size: var(--t-lg); margin-bottom: var(--s-2); }
.auth-foot { text-align: center; margin-top: var(--s-5); font-size: var(--t-sm); color: var(--text-muted); }

/* The admin sign-in is visually distinct so it is obvious at a
   glance which entrance you are at. */
.auth-admin {
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, color-mix(in srgb, var(--deep) 45%, transparent), transparent 70%),
    var(--ink);
}
.auth-admin .auth-card { border-color: color-mix(in srgb, #fff 12%, transparent); background: #0F2942; }
.auth-admin h1, .auth-admin .brand { color: #fff; }
.auth-admin .label { color: #D7E2EC; }
.auth-admin .input { background: #0B2033; border-color: #244868; color: #fff; }
.auth-admin .input::placeholder { color: #5F7C96; }
.auth-admin .auth-foot, .auth-admin .muted, .auth-admin .hint { color: #93A9BC; }
.auth-admin .badge-neutral { background: #17364F; color: #9DB4C7; }

/* ─── Admin shell ────────────────────────────────────────────── */
.admin {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100dvh;
}

.sidebar {
  background: var(--c-nav-bg);
  color: var(--c-nav-text);
  padding: var(--s-5) var(--s-4);
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
  position: sticky;
  top: 0;
  height: 100dvh;
  overflow-y: auto;
}
.sidebar .brand { color: var(--c-nav-text); }
.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
}
.sidebar-close,
.admin-menu-toggle,
.sidebar-backdrop { display: none; }
.sidebar-section {
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-nav-text-muted);
  padding: 0 var(--s-3);
  margin-bottom: var(--s-2);
}

.side-nav { display: flex; flex-direction: column; gap: 2px; }
.side-nav a {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 0.625rem var(--s-3);
  border-radius: var(--r-input);
  font-size: var(--t-sm);
  font-weight: 500;
  color: var(--c-nav-text-muted);
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.side-nav a:hover { background: var(--c-nav-active-bg); color: var(--c-nav-text); }
.side-nav a.is-current { background: var(--c-nav-active-bg); color: var(--c-nav-text); font-weight: 600; }
.side-nav a.is-current .icon { color: var(--signal); }
.side-nav .icon { flex: none; opacity: .85; }
.side-nav .sub { padding-left: calc(var(--s-3) + 18px); }


/* ─── OL-UI-000046 ─────────────────────────────────────────────
   Hierarchical admin navigation. Native details/summary disclosures
   keep the sidebar compact and keyboard-accessible without a JS-only
   dependency. Current child routes automatically keep their group open.
   ─────────────────────────────────────────────────────────────── */
.side-nav-group { margin: 0; }
.side-nav-group > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 0.625rem var(--s-3);
  border-radius: var(--r-input);
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--c-nav-text-muted);
  cursor: pointer;
  user-select: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.side-nav-group > summary::-webkit-details-marker { display: none; }
.side-nav-group > summary:hover,
.side-nav-group > summary:focus-visible { background: var(--c-nav-active-bg); color: var(--c-nav-text); }
.side-nav-group > summary:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; }
.side-nav-group > summary.is-current { color: var(--c-nav-text); background: var(--c-nav-active-bg); }
.side-nav-group > summary .icon { flex: none; opacity: .85; }
.side-nav-chevron {
  margin-left: auto;
  display: inline-block;
  font-size: 1.25rem;
  line-height: 1;
  transform: rotate(0deg);
  transition: transform var(--dur) var(--ease);
}
.side-nav-group[open] > summary .side-nav-chevron { transform: rotate(90deg); }
.side-nav-children {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 3px 0 5px;
}
.side-nav-children .sub {
  position: relative;
  font-size: calc(var(--t-sm) - .02rem);
}
.side-nav .side-nav-depth-1 > summary,
.side-nav a.side-nav-depth-1 { padding-left: calc(var(--s-3) + 18px); }
.side-nav .side-nav-depth-2 > summary,
.side-nav a.side-nav-depth-2 { padding-left: calc(var(--s-3) + 36px); }
.side-nav .side-nav-depth-3 > summary,
.side-nav a.side-nav-depth-3 { padding-left: calc(var(--s-3) + 54px); }
.side-nav-children .icon { width: 16px; height: 16px; opacity: .8; }

.sidebar-foot {
  margin-top: auto;
  padding-top: var(--s-4);
  border-top: 1px solid color-mix(in srgb, var(--c-nav-text) 14%, transparent);
  font-size: var(--t-xs);
  color: var(--c-nav-text-muted);
}

.admin-main { display: flex; flex-direction: column; min-width: 0; background: var(--sand); }

.admin-bar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--sand) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
  padding: var(--s-4) var(--s-6);
  display: flex;
  align-items: center;
  gap: var(--s-4);
}
.admin-bar h1 { font-size: var(--t-lg); margin: 0; }

.admin-body { padding: var(--s-6); flex: 1; }
.admin-body > * + * { margin-top: var(--s-5); }

.avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--deep);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: var(--t-xs);
  font-weight: 700;
  flex: none;
}

/* ─── OL-UI-000032 ─────────────────────────────────────────────
   Mobile admin navigation. The desktop navigation remains a fixed
   left sidebar; below 900px the exact same menu becomes an off-canvas
   drawer. No duplicated navigation means role visibility stays in one
   place and cannot drift between desktop and mobile.
   ─────────────────────────────────────────────────────────────── */
@media (max-width: 767px) {
  .admin {
    display: block;
    min-height: 100dvh;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 70;
    width: min(84vw, 320px);
    height: 100dvh;
    padding: var(--s-5) var(--s-4);
    flex-direction: column;
    align-items: stretch;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    gap: var(--s-5);
    transform: translateX(-102%);
    visibility: hidden;
    box-shadow: var(--shadow-2);
    transition:
      transform var(--dur) var(--ease),
      visibility 0s linear var(--dur);
  }

  .admin.is-menu-open .sidebar {
    transform: translateX(0);
    visibility: visible;
    transition-delay: 0s;
  }

  /* Dark content + light navigation sheet is intentional on phones.
     The expanded drawer uses its own semantic palette rather than
     inheriting installation appearance primitives. */
  .ol-mode-dark .admin.is-menu-open .sidebar {
    --c-nav-bg: var(--c-drawer-bg);
    --c-nav-text: var(--c-drawer-text);
    --c-nav-text-muted: var(--c-drawer-text-muted);
    --c-nav-active-bg: var(--c-drawer-active-bg);
    background: var(--c-drawer-bg);
    color: var(--c-drawer-text);
    border-right: 1px solid var(--c-drawer-border);
  }
  .ol-mode-dark .admin.is-menu-open .sidebar .sidebar-section { color: var(--c-drawer-section); }
  .ol-mode-dark .admin.is-menu-open .sidebar .side-nav a,
  .ol-mode-dark .admin.is-menu-open .sidebar .side-nav-group > summary { color: var(--c-drawer-text-muted); }
  .ol-mode-dark .admin.is-menu-open .sidebar .side-nav a:hover,
  .ol-mode-dark .admin.is-menu-open .sidebar .side-nav-group > summary:hover,
  .ol-mode-dark .admin.is-menu-open .sidebar .side-nav-group > summary:focus-visible {
    background: var(--c-drawer-hover-bg);
    color: var(--c-drawer-hover-text);
  }
  .ol-mode-dark .admin.is-menu-open .sidebar .side-nav a.is-current,
  .ol-mode-dark .admin.is-menu-open .sidebar .side-nav-group > summary.is-current {
    background: var(--c-drawer-active-bg);
    color: var(--c-drawer-active-text);
  }
  .ol-mode-dark .admin.is-menu-open .sidebar .brand,
  .ol-mode-dark .admin.is-menu-open .sidebar .sidebar-foot { color: var(--c-drawer-text); }
  .ol-mode-dark .admin.is-menu-open .sidebar .sidebar-foot {
    border-top-color: var(--c-drawer-border);
  }

  .sidebar-section,
  .sidebar-foot { display: block; }
  .side-nav { flex-direction: column; }

  .sidebar-close {
    width: 40px;
    height: 40px;
    flex: none;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--c-drawer-border);
    border-radius: var(--r-input);
    background: var(--c-drawer-close-bg);
    color: var(--c-drawer-close-text);
    cursor: pointer;
    transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
  }
  .sidebar-close:hover { filter: brightness(1.08); color: var(--c-drawer-close-text); }
  .sidebar-close:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; }

  .admin-menu-toggle {
    width: 42px;
    height: 42px;
    flex: none;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: var(--r-input);
    background: var(--paper);
    color: var(--deep);
    box-shadow: var(--shadow-1);
    cursor: pointer;
    transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  }
  .admin-menu-toggle:hover { background: var(--deep-wash); border-color: var(--line-strong); }
  .admin-menu-toggle:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; }

  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: block;
    border: 0;
    padding: 0;
    background: rgba(5, 18, 31, .48);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    cursor: default;
    transition:
      opacity var(--dur) var(--ease),
      visibility 0s linear var(--dur);
  }
  .admin.is-menu-open .sidebar-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  body.admin-menu-open { overflow: hidden; }
  .admin-main { min-height: 100dvh; }
  .admin-body { padding: var(--s-4); }
  .admin-bar { padding: var(--s-3) var(--s-4); gap: var(--s-3); }
  .admin-bar h1 { font-size: 1.2rem; }
}

/* ─── Installer ──────────────────────────────────────────────── */
.install {
  min-height: 100dvh;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, color-mix(in srgb, var(--signal) 10%, transparent), transparent 70%),
    var(--sand);
  padding: var(--s-6) var(--s-4) var(--s-8);
}
.install-shell { max-width: 760px; margin-inline: auto; }
.install-head { text-align: center; margin-bottom: var(--s-6); }
.install-head .brand { justify-content: center; margin-bottom: var(--s-4); }

.steps {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-6);
  justify-content: center;
  flex-wrap: wrap;
}
.step {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--t-xs);
  font-weight: 600;
  color: var(--text-faint);
}
.step-num {
  width: 26px; height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  font-size: var(--t-xs);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.step.is-current { color: var(--ink); }
.step.is-current .step-num { background: var(--signal); border-color: var(--signal); color: #04302B; }
.step.is-done { color: var(--text-muted); }
.step.is-done .step-num { background: var(--deep); border-color: var(--deep); color: #fff; }
.step-line { width: 22px; height: 1px; background: var(--line-strong); }

@media (max-width: 620px) {
  .step-label { display: none; }
  .step-line { width: 12px; }
}

/* Requirement rows */
.req-list { display: flex; flex-direction: column; }
.req-row {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: var(--t-sm);
}
.req-row:last-child { border-bottom: 0; }
.req-name { flex: 1; min-width: 0; }
.req-hint { display: block; color: var(--text-faint); font-size: var(--t-xs); margin-top: 2px; }
.req-mark {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex: none;
  font-size: 11px;
  font-weight: 800;
}
.req-ok   { background: var(--success-wash); color: var(--success); }
.req-warn { background: var(--amber-wash);   color: #8A5F14; }
.req-bad  { background: var(--danger-wash);  color: var(--danger); }

.review-list dt {
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-top: var(--s-4);
}
.review-list dt:first-child { margin-top: 0; }
.review-list dd { margin: var(--s-1) 0 0; font-size: var(--t-base); }

/* ─── Spinner ────────────────────────────────────────────────── */
.spinner {
  width: 16px; height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: ol-spin .7s linear infinite;
  display: inline-block;
  flex: none;
}
@keyframes ol-spin { to { transform: rotate(360deg); } }

.is-busy { pointer-events: none; opacity: .75; }

/* ─── Page transitions ───────────────────────────────────────
   OL-UI-000002
   WHAT:  Cross-document transitions via the View Transitions API.
   WHY:   Gives the platform its sense of continuity between pages
          without a single-page application. Browsers without
          support simply navigate normally — there is no polyfill
          and no JavaScript cost.
   NOTE:  The style is chosen in settings and applied as a class on
          <html>. 'none' opts out entirely, as does any visitor
          with reduced motion enabled.
   ─────────────────────────────────────────────────────────────── */
@view-transition { navigation: auto; }

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: var(--dur);
  animation-timing-function: var(--ease);
}

.ol-transition-fade::view-transition-old(root) { animation-name: ol-fade-out; }
.ol-transition-fade::view-transition-new(root) { animation-name: ol-fade-in; }

.ol-transition-slide::view-transition-old(root) { animation-name: ol-slide-out; }
.ol-transition-slide::view-transition-new(root) { animation-name: ol-slide-in; }

.ol-transition-none::view-transition-old(root),
.ol-transition-none::view-transition-new(root) { animation: none; }

@keyframes ol-fade-out { from { opacity: 1; } to { opacity: 0; } }
@keyframes ol-fade-in  { from { opacity: 0; } to { opacity: 1; } }

@keyframes ol-slide-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-8px); }
}
@keyframes ol-slide-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Elements that should feel continuous across a navigation. */
.vt-brand { view-transition-name: ol-brand; }
.vt-sidebar { view-transition-name: ol-sidebar; }

/* Entrance animation for content on first paint. */
.rise { animation: ol-rise 420ms var(--ease) both; }
.rise-2 { animation-delay: 60ms; }
.rise-3 { animation-delay: 120ms; }
.rise-4 { animation-delay: 180ms; }

@keyframes ol-rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Reduced motion ─────────────────────────────────────────
   Honoured properly: transitions collapse to near-zero rather
   than being left running at a shorter duration.
   ─────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) { animation: none !important; }
  .btn:hover, .card-hover:hover { transform: none; }
}

/* ─── Utilities ──────────────────────────────────────────────── */
.hidden { display: none !important; }
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.gap-2 { gap: var(--s-2); }
.gap-4 { gap: var(--s-4); }
.w-full { width: 100%; }

.skip-link {
  position: absolute;
  left: var(--s-4);
  top: -60px;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 0.625rem 1rem;
  border-radius: var(--r-input);
  font-size: var(--t-sm);
  font-weight: 600;
  text-decoration: none;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: var(--s-4); color: #fff; }


/* Plugin extension demo class. A theme plugin may opt into this class
   through the documented `oleren.html.classes` hook; core owns the
   rendering primitive, while activation remains entirely plugin-led. */
.ol-theme-refined .brand-mark {
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, currentColor 18%, transparent);
}
.ol-theme-refined .card {
  border-radius: 18px;
}

/* ─── OL-UI-000043 · Appearance, branding & site controls ───── */
.brand-logo {
  display: block;
  width: auto;
  height: 36px;
  max-width: 180px;
  object-fit: contain;
  flex: none;
}
.sidebar .brand-logo { max-width: 150px; height: 34px; }
.auth-card .brand-logo { max-width: 190px; height: 42px; }
.site-footer .brand-logo { height: 30px; max-width: 140px; }

.settings-intro {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--s-5);
  margin-bottom: var(--s-5);
}
.settings-intro h2 { margin-bottom: var(--s-2); }

.settings-layout {
  display: block;
  max-width: 1120px;
}
.settings-nav {
  position: sticky;
  top: calc(68px + var(--s-4));
  padding: var(--s-2);
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.settings-nav a {
  display: block;
  padding: .625rem .75rem;
  border-radius: var(--r-input);
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--t-sm);
  font-weight: 600;
}
.settings-nav a:hover,
.settings-nav a:focus-visible { background: var(--deep-wash); color: var(--deep); }


/* ─── OL-UI-000047 ─────────────────────────────────────────────
   Settings accordions. Each category is a real disclosure control,
   while every input remains in one form so Save all settings keeps the
   original atomic update/audit behaviour.
   ─────────────────────────────────────────────────────────────── */
.settings-accordion {
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--paper);
  overflow: clip;
  box-shadow: var(--shadow-1);
}
.settings-accordion > summary {
  list-style: none;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-4) var(--s-5);
  cursor: pointer;
  color: var(--ink);
  background: var(--paper);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.settings-accordion > summary::-webkit-details-marker { display: none; }
.settings-accordion > summary:hover,
.settings-accordion > summary:focus-visible { background: var(--deep-wash); }
.settings-accordion > summary:focus-visible { outline: 3px solid var(--signal); outline-offset: -3px; }
.settings-accordion > summary span:first-child { display: flex; flex-direction: column; gap: 3px; }
.settings-accordion > summary b { font-family: var(--font-display); font-size: var(--t-md); }
.settings-accordion > summary small { color: var(--text-muted); font-size: var(--t-xs); font-weight: 500; }
.settings-accordion-chevron {
  flex: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  transform: rotate(0deg);
  transition: transform var(--dur) var(--ease);
}
.settings-accordion[open] > summary {
  border-bottom: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--deep-wash) 48%, var(--paper));
}
.settings-accordion[open] > summary .settings-accordion-chevron { transform: rotate(90deg); }
.settings-accordion-body { padding: var(--s-4); }
.settings-accordion-body > .settings-section {
  border: 0;
  box-shadow: none;
  padding: var(--s-3);
}
.settings-form { min-width: 0; }
.settings-section { scroll-margin-top: 86px; }
.settings-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-5);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--line-soft);
}
.settings-section-head h2 { margin-bottom: 0; }
.settings-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: var(--s-4);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-input);
  background: color-mix(in srgb, var(--sand) 40%, var(--paper));
}

.brand-upload-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
}
.brand-upload {
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--paper);
}
.brand-upload .field { padding: var(--s-4); }
.brand-preview {
  min-height: 128px;
  display: grid;
  place-items: center;
  padding: var(--s-4);
  background:
    linear-gradient(45deg, var(--line-soft) 25%, transparent 25%),
    linear-gradient(-45deg, var(--line-soft) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--line-soft) 75%),
    linear-gradient(-45deg, transparent 75%, var(--line-soft) 75%),
    var(--paper);
  background-size: 18px 18px;
  background-position: 0 0, 0 9px, 9px -9px, -9px 0;
  border-bottom: 1px solid var(--line);
}
.brand-preview img { max-width: 190px; max-height: 82px; object-fit: contain; }
.brand-preview-small img { max-width: 64px; max-height: 64px; }
.file-input { padding: .55rem; }

.color-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-4);
  margin-bottom: var(--s-5);
}
.color-field { margin-bottom: 0; }
.color-control { display: grid; grid-template-columns: 50px minmax(0, 1fr); gap: var(--s-2); }
.color-control input[type="color"] {
  width: 50px;
  height: 44px;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-input);
  background: var(--paper);
  cursor: pointer;
}
.color-control input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-control input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 7px; }

.toggle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s-3);
}
.mt-section { margin-top: var(--s-5); }
.mb-field { margin-bottom: var(--s-4); }
.code-editor { min-height: 280px; font-family: var(--font-mono); font-size: var(--t-sm); line-height: 1.55; tab-size: 2; }

.maintenance-settings.is-active { border-color: color-mix(in srgb, var(--amber) 55%, var(--line)); }
.maintenance-toggle { background: var(--amber-wash); border-color: color-mix(in srgb, var(--amber) 35%, var(--line)); }
.maintenance-admin-banner a { color: inherit; font-weight: 700; }

.settings-savebar {
  position: sticky;
  bottom: var(--s-3);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  box-shadow: var(--shadow-2);
}
.settings-danger-zone {
  margin-top: var(--s-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  border-style: dashed;
}

.maintenance-page {
  min-height: 100dvh;
  background:
    radial-gradient(ellipse 70% 55% at 50% -10%, color-mix(in srgb, var(--signal) 13%, transparent), transparent 70%),
    var(--sand);
}
.maintenance-shell {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--s-6) var(--s-4);
}
.maintenance-card {
  width: min(680px, 100%);
  padding: clamp(2rem, 7vw, 4.5rem);
  border: 1px solid var(--line);
  border-radius: calc(var(--r-card) + 6px);
  background: var(--paper);
  box-shadow: var(--shadow-2);
  text-align: center;
}
.maintenance-brand { justify-content: center; margin-bottom: var(--s-7); }
.maintenance-card .eyebrow { margin-bottom: var(--s-3); }
.maintenance-card h1 { font-size: clamp(2.2rem, 7vw, 4rem); }
.maintenance-card .lead { max-width: 540px; margin-inline: auto; }
.maintenance-return {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  margin-top: var(--s-4);
  padding: .625rem .875rem;
  border-radius: var(--r-pill);
  background: var(--deep-wash);
  color: var(--deep);
  font-size: var(--t-sm);
  font-weight: 600;
}
.maintenance-preview-badge { margin-bottom: var(--s-4); }
.maintenance-actions { margin-top: var(--s-6); }

@media (max-width: 1000px) {
  .brand-upload-grid, .color-grid, .toggle-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .settings-accordion > summary { padding: var(--s-4); min-height: 64px; }
  .settings-accordion-body { padding: var(--s-2); }
  .brand-upload-grid, .color-grid, .toggle-grid { grid-template-columns: 1fr; }
  .settings-note, .settings-savebar, .settings-danger-zone, .settings-intro { align-items: flex-start; flex-direction: column; }
  .settings-savebar { bottom: var(--s-2); }
}

.theme-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-3);
  margin-bottom: var(--s-5);
}
.theme-status > div {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: var(--s-2) var(--s-3);
  padding: var(--s-4);
  border: 1px solid var(--line);
  border-radius: var(--r-input);
  background: color-mix(in srgb, var(--sand) 30%, var(--paper));
}
.theme-status .hint { grid-column: 1 / -1; }
@media (max-width: 760px) { .theme-status { grid-template-columns: 1fr; } }

/* ─── OL-PLUGIN-000041 / OL-UI-000049 · Plugin manager UX ─────── */
.plugin-manager-intro {
  align-items: flex-start;
}
.plugin-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr));
  gap: var(--s-4);
  margin-bottom: var(--s-5);
}
.plugin-card {
  display: flex;
  flex-direction: column;
  min-height: 280px;
}
.plugin-card-head {
  display: flex;
  align-items: flex-start;
  gap: var(--s-3);
}
.plugin-mark {
  display: grid;
  place-items: center;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: color-mix(in srgb, var(--signal) 12%, var(--paper));
  color: var(--deep);
  border: 1px solid color-mix(in srgb, var(--deep) 10%, transparent);
}
.plugin-mark-lg {
  flex-basis: 52px;
  width: 52px;
  height: 52px;
  border-radius: 16px;
}
.plugin-card-title {
  min-width: 0;
  flex: 1;
}
.plugin-card-title h2,
.plugin-card-title h3 {
  margin: .35rem 0 .2rem;
}
.plugin-badges {
  flex-wrap: wrap;
}
.plugin-description {
  margin: var(--s-4) 0;
  flex: 1;
}
.plugin-mini-meta {
  display: grid;
  gap: var(--s-2);
  margin: 0 0 var(--s-4);
}
.plugin-mini-meta div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: var(--s-2);
  align-items: baseline;
}
.plugin-mini-meta dt {
  font-size: var(--t-xs);
  color: var(--text-faint);
  font-weight: 700;
}
.plugin-mini-meta dd {
  margin: 0;
  font-size: var(--t-xs);
  color: var(--text-muted);
}
.plugin-card-actions,
.plugin-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  align-items: center;
}
.plugin-card-actions form,
.plugin-hero-actions form {
  margin: 0;
}
.plugin-health-note {
  border-radius: var(--r-input);
  padding: .65rem .75rem;
  margin-bottom: var(--s-3);
  font-size: var(--t-xs);
  line-height: 1.45;
}
.plugin-health-note-danger {
  background: color-mix(in srgb, var(--danger, #b42318) 8%, var(--paper));
  border: 1px solid color-mix(in srgb, var(--danger, #b42318) 18%, transparent);
}
.plugin-hero {
  display: flex;
  justify-content: space-between;
  gap: var(--s-5);
  align-items: flex-start;
}
.plugin-detail-grid {
  align-items: start;
}
.plugin-health-summary {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-3);
}
.plugin-chip-row {
  flex-wrap: wrap;
  margin-top: var(--s-2);
}
.plugin-settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s-4);
}
.plugin-no-settings {
  grid-column: 1 / -1;
  border: 1px dashed var(--line);
  border-radius: var(--r-card);
  padding: var(--s-5);
  background: color-mix(in srgb, var(--paper) 84%, var(--sand));
}
.plugin-danger-zone {
  border-color: color-mix(in srgb, var(--danger, #b42318) 24%, var(--line));
}

/* First-party Refined Theme 0.1.1 component treatments.
   The plugin selects these classes through oleren.html.classes; core
   still owns critical branding, maintenance and accessibility controls. */
.ol-theme-refined.ol-theme-surface-soft .card {
  background: color-mix(in srgb, var(--paper) 94%, var(--sand));
}
.ol-theme-refined.ol-theme-surface-crisp .card {
  border-color: color-mix(in srgb, var(--deep) 16%, var(--line));
  box-shadow: none;
}
.ol-theme-refined.ol-theme-surface-glass .card {
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(12px);
}
.ol-theme-refined.ol-theme-density-compact .card {
  padding-top: calc(var(--s-4) * .85);
  padding-bottom: calc(var(--s-4) * .85);
}
.ol-theme-refined.ol-theme-density-airy .card {
  padding-top: calc(var(--s-6) * 1.08);
  padding-bottom: calc(var(--s-6) * 1.08);
}
.ol-theme-refined.ol-theme-motion-lively .card-hover:hover,
.ol-theme-refined.ol-theme-motion-lively .btn:hover {
  transform: translateY(-2px);
}
.ol-theme-refined.ol-theme-motion-calm .card-hover:hover,
.ol-theme-refined.ol-theme-motion-calm .btn:hover,
.ol-theme-refined.ol-theme-motion-none .card-hover:hover,
.ol-theme-refined.ol-theme-motion-none .btn:hover {
  transform: none;
}
.ol-theme-refined.ol-theme-treatment-editorial h1,
.ol-theme-refined.ol-theme-treatment-editorial h2,
.ol-theme-refined.ol-theme-treatment-editorial h3 {
  letter-spacing: -0.025em;
}
.ol-theme-refined.ol-theme-treatment-minimal .card {
  box-shadow: none;
}
.ol-theme-refined.ol-theme-treatment-minimal .brand-mark {
  border-radius: var(--r-input);
}

@media (max-width: 720px) {
  .plugin-hero {
    flex-direction: column;
  }
  .plugin-hero-actions {
    width: 100%;
  }
  .plugin-hero-actions .btn,
  .plugin-card-actions .btn {
    min-height: 42px;
  }
  .plugin-settings-grid {
    grid-template-columns: 1fr;
  }
  .plugin-mini-meta div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}


/* ─── OL-UI-000051 — Front-end profile & security settings ────── */
.profile-settings-shell { padding-top: var(--s-7); padding-bottom: var(--s-8); }
.profile-settings-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--s-5);
  margin-bottom: var(--s-6);
}
.avatar-lg {
  width: 54px;
  height: 54px;
  font-size: var(--t-md);
  flex: 0 0 54px;
}
.profile-settings-layout {
  display: grid;
  grid-template-columns: minmax(210px, 250px) minmax(0, 1fr);
  gap: var(--s-5);
  align-items: start;
}
.profile-settings-nav {
  padding: var(--s-2);
  position: sticky;
  top: calc(var(--s-5) + 72px);
}
.profile-settings-link {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  width: 100%;
  padding: .8rem .85rem;
  border-radius: var(--r-input);
  text-decoration: none;
  color: var(--text);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.profile-settings-link:hover { background: var(--deep-wash); color: var(--deep); }
.profile-settings-link.is-active { background: var(--signal-wash); color: var(--deep); }
.profile-settings-link > span:nth-child(2) { display: grid; line-height: 1.25; min-width: 0; }
.profile-settings-link small { color: var(--text-muted); margin-top: .18rem; }
.profile-settings-link .badge { margin-left: auto; }
.profile-settings-content { min-width: 0; }

.two-factor-grid { align-items: stretch; }
.two-factor-card { min-width: 0; }
.two-factor-heading { align-items: flex-start; }
.totp-setup-grid {
  display: grid;
  grid-template-columns: minmax(190px, 240px) minmax(0, 1fr);
  gap: var(--s-5);
  align-items: center;
}
.totp-qr-panel { text-align: center; }
.totp-qr {
  display: grid;
  place-items: center;
  min-height: 210px;
  padding: var(--s-3);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  overflow: hidden;
}
.totp-qr-svg { width: min(100%, 220px); aspect-ratio: 1; }
.totp-qr-fallback { color: var(--danger); font-size: var(--t-sm); }
.setup-step { display: grid; grid-template-columns: 30px 1fr; gap: var(--s-3); align-items: start; }
.setup-step-number {
  width: 30px;
  height: 30px;
  border-radius: var(--r-pill);
  display: grid;
  place-items: center;
  background: var(--signal-wash);
  color: var(--deep);
  font-family: var(--font-mono);
  font-size: var(--t-sm);
  font-weight: 700;
}
.copy-row { align-items: stretch; }
.copy-value { display: flex; align-items: center; min-width: 0; overflow-wrap: anywhere; flex: 1; }
.two-factor-actions > details + details { margin-top: var(--s-3); padding-top: var(--s-3); border-top: 1px solid var(--line-soft); }
.recovery-code-grid code { user-select: all; }

@media (max-width: 820px) {
  .profile-settings-shell { padding-top: var(--s-5); }
  .profile-settings-layout { grid-template-columns: 1fr; }
  .profile-settings-nav {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .profile-settings-link:last-child:nth-child(3) { grid-column: 1 / -1; }
  .totp-setup-grid { grid-template-columns: 1fr; }
  .totp-qr { max-width: 260px; width: 100%; margin-inline: auto; }
}

@media (max-width: 560px) {
  .profile-settings-head { align-items: center; }
  .profile-settings-head .lead { font-size: var(--t-base); }
  .profile-settings-nav { grid-template-columns: 1fr; }
  .profile-settings-link:last-child:nth-child(3) { grid-column: auto; }
  .copy-row { flex-direction: column; }
  .copy-row .btn { align-self: flex-start; }
}

/* ═══════════════════════════════════════════════════════════════
   OL-COURSE-000051 — R3 course engine / curriculum / learner UI
   ═══════════════════════════════════════════════════════════════ */
.mt-3 { margin-top: var(--s-3) !important; }
.mt-4 { margin-top: var(--s-4) !important; }
.mt-5 { margin-top: var(--s-5) !important; }
.mb-2 { margin-bottom: var(--s-2) !important; }
.mb-3 { margin-bottom: var(--s-3) !important; }
.mb-4 { margin-bottom: var(--s-4) !important; }
.gap-3 { gap: var(--s-3); }

.check-row {
  display: flex;
  align-items: flex-start;
  gap: var(--s-2);
  padding: .7rem .8rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-input);
  background: color-mix(in srgb, var(--paper) 92%, var(--sand));
  cursor: pointer;
}
.check-row input { margin-top: .22rem; accent-color: var(--signal); flex: none; }
.check-row span { display: block; min-width: 0; }
.check-row small { display: block; color: var(--text-muted); margin-top: .15rem; }

.course-filter-grid {
  display: grid;
  grid-template-columns: minmax(220px, 2fr) minmax(150px, 1fr) minmax(180px, 1fr) auto;
  gap: var(--s-3);
  align-items: end;
}
.course-filter-actions { padding-bottom: .1rem; }
.course-admin-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); }
.course-admin-card { display: flex; flex-direction: column; min-height: 260px; }
.course-card-title { font-size: var(--t-lg); margin-bottom: var(--s-2); }
.course-card-title a { text-decoration: none; color: var(--ink); }
.course-card-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-2);
  padding-top: var(--s-4);
  margin-top: auto;
  border-top: 1px solid var(--line-soft);
}
.course-card-metrics div { display: flex; flex-direction: column; gap: .1rem; }
.course-card-metrics b { font-family: var(--font-display); font-size: var(--t-md); }
.course-card-metrics span { font-size: var(--t-xs); color: var(--text-muted); }
.course-empty-state { padding-block: var(--s-7); }
.course-form-card { max-width: 1050px; }
.course-category-checks { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: var(--s-2); }

.course-admin-tabs {
  display: flex;
  gap: var(--s-1);
  overflow-x: auto;
  padding: .35rem;
  background: color-mix(in srgb, var(--paper) 75%, var(--sand));
  border: 1px solid var(--line);
  border-radius: var(--r-card);
}
.course-admin-tab {
  flex: none;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: var(--t-sm);
  padding: .55rem .85rem;
  border-radius: var(--r-input);
}
.course-admin-tab:hover { background: var(--paper); color: var(--deep); }
.course-admin-tab.is-active { background: var(--deep); color: #fff; }

.course-overview-hero { background: linear-gradient(135deg, var(--paper), color-mix(in srgb, var(--signal-wash) 38%, var(--paper))); }
.course-overview-copy { max-width: 720px; }
.course-detail-list { margin: var(--s-4) 0 0; }
.course-detail-list > div { display: flex; justify-content: space-between; gap: var(--s-4); padding: .65rem 0; border-bottom: 1px solid var(--line-soft); }
.course-detail-list dt { color: var(--text-muted); }
.course-detail-list dd { margin: 0; font-weight: 600; text-align: right; }
.danger-zone summary { cursor: pointer; color: var(--danger); }
.input-confirm { max-width: 180px; }

.input-suffix { display: flex; align-items: stretch; }
.input-suffix .input { border-radius: var(--r-input) 0 0 var(--r-input); }
.input-suffix > span { display: flex; align-items: center; padding: 0 .9rem; background: var(--line-soft); border: 1px solid var(--line-strong); border-left: 0; border-radius: 0 var(--r-input) var(--r-input) 0; font-weight: 700; }
.course-prerequisite-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--s-2); }
.course-prerequisite-option { display: flex; gap: var(--s-2); align-items: flex-start; padding: var(--s-3); border: 1px solid var(--line); border-radius: var(--r-input); background: var(--paper); cursor: pointer; }
.course-prerequisite-option input { margin-top: .25rem; accent-color: var(--signal); }
.course-prerequisite-option span, .course-prerequisite-option small { display: block; }
.course-prerequisite-option small { color: var(--text-muted); margin-top: .15rem; }

.curriculum-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: var(--s-4); align-items: start; }
.curriculum-board { display: flex; flex-direction: column; gap: var(--s-4); min-width: 0; }
.curriculum-section { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-card); box-shadow: var(--shadow-1); overflow: visible; transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease); }
.curriculum-section.is-dragging, .curriculum-lesson.is-dragging { opacity: .45; }
.curriculum-section-head { display: flex; align-items: flex-start; gap: var(--s-3); padding: var(--s-4); border-bottom: 1px solid var(--line-soft); }
.curriculum-section-head h3 { margin: 0; font-size: var(--t-md); }
.drag-handle { border: 0; background: transparent; color: var(--text-faint); font-size: 1.15rem; line-height: 1; padding: .25rem; cursor: grab; letter-spacing: -.2rem; }
.drag-handle:active { cursor: grabbing; }
.curriculum-lessons { padding: var(--s-3); display: flex; flex-direction: column; gap: var(--s-2); min-height: 28px; }
.curriculum-lesson { display: flex; align-items: center; gap: var(--s-2); padding: .75rem .8rem; border: 1px solid var(--line-soft); border-radius: var(--r-input); background: color-mix(in srgb, var(--paper) 90%, var(--sand)); transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease); }
.curriculum-lesson:hover { border-color: var(--line-strong); }
.curriculum-lesson-main { flex: 1 1 auto; min-width: 0; }
.lesson-handle { font-size: 1rem; }
.curriculum-edit-popover { position: relative; flex: none; }
.curriculum-edit-popover > summary { list-style: none; }
.curriculum-edit-popover > summary::-webkit-details-marker { display: none; }
.curriculum-edit-popover[open] > form:first-of-type { margin-top: var(--s-3); }
.curriculum-edit-popover[open] { min-width: min(460px, 70vw); }
.curriculum-edit-popover[open] > form { padding: var(--s-3); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-input); box-shadow: var(--shadow-2); }
.curriculum-add { border-top: 1px solid var(--line-soft); }
.curriculum-add > summary { display: flex; align-items: center; gap: var(--s-2); cursor: pointer; padding: .8rem var(--s-4); color: var(--deep); font-weight: 600; }
.curriculum-add > form { padding: 0 var(--s-4) var(--s-4); }
.curriculum-sidebar { position: sticky; top: var(--s-4); }
.curriculum-save-state { font-size: var(--t-xs); font-weight: 700; border-radius: var(--r-pill); padding: .4rem .7rem; background: var(--line-soft); color: var(--text-muted); }
.curriculum-save-state.is-saving { background: var(--amber-wash); color: #7A5312; }
.curriculum-save-state.is-saved { background: var(--success-wash); color: var(--success); }
.curriculum-save-state.is-error { background: var(--danger-wash); color: var(--danger); }

.course-person-row { display: flex; align-items: center; gap: var(--s-3); padding: var(--s-3) 0; border-bottom: 1px solid var(--line-soft); }
.course-person-row:last-child { border-bottom: 0; }
.course-enrolment-top { align-items: stretch; }
.progress-cell { display: flex; align-items: center; gap: var(--s-2); min-width: 150px; }
progress { appearance: none; -webkit-appearance: none; width: 100%; height: .55rem; border: 0; border-radius: var(--r-pill); overflow: hidden; background: var(--line-soft); }
progress::-webkit-progress-bar { background: var(--line-soft); border-radius: var(--r-pill); }
progress::-webkit-progress-value { background: var(--signal); border-radius: var(--r-pill); }
progress::-moz-progress-bar { background: var(--signal); border-radius: var(--r-pill); }
.input-compact { min-width: 190px; padding-block: .5rem; }
.select-compact { min-width: 130px; padding-block: .5rem; }

.course-category-layout { align-items: start; }
.course-category-active { align-self: center; margin-top: 1.45rem; }
.category-card summary { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); cursor: pointer; list-style: none; }
.category-card summary::-webkit-details-marker { display: none; }
.category-card summary span, .category-card summary small { display: block; }
.category-card summary small { color: var(--text-muted); font-weight: 400; margin-top: .15rem; }

.learning-shell { padding-block: var(--s-7); }
.learning-page-head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--s-4); margin-bottom: var(--s-6); }
.learning-course-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--s-4); }
.learning-course-card { display: flex; flex-direction: column; gap: var(--s-3); }
.learning-course-card h2 { font-size: var(--t-lg); margin-bottom: 0; }
.learning-progress { margin-top: auto; display: flex; flex-direction: column; gap: .45rem; }
.learning-progress progress { height: .65rem; }
.learning-empty { padding-block: var(--s-8); }
.learning-course-header { padding: var(--s-6); margin-bottom: var(--s-5); background: linear-gradient(135deg, var(--paper), color-mix(in srgb, var(--signal-wash) 48%, var(--paper))); }
.learning-course-header-copy { max-width: 760px; }
.learning-progress-large { max-width: 650px; margin-top: var(--s-5); }
.learning-section .card-head { align-items: flex-start; }
.learning-section .card-head p { margin: .3rem 0 0; }
.learning-lesson-list { display: flex; flex-direction: column; }
.learning-lesson-row { display: flex; align-items: center; gap: var(--s-3); padding: .95rem var(--s-5); text-decoration: none; color: var(--ink); border-bottom: 1px solid var(--line-soft); }
.learning-lesson-row:last-child { border-bottom: 0; }
.learning-lesson-row:hover { background: color-mix(in srgb, var(--signal-wash) 30%, var(--paper)); color: var(--ink); }
.learning-lesson-row.is-locked { opacity: .62; cursor: default; pointer-events: none; }
.learning-lesson-row small { display: block; color: var(--text-muted); margin-top: .15rem; }
.learning-lesson-state { width: 30px; height: 30px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; color: var(--signal-dim); flex: none; }
.lesson-number { font-family: var(--font-mono); font-size: var(--t-xs); }
.learning-lesson-page { padding: var(--s-6); }
.learning-content-placeholder { margin: var(--s-6) 0; padding: var(--s-6); border: 1px dashed var(--line-strong); border-radius: var(--r-card); text-align: center; background: color-mix(in srgb, var(--sand) 35%, var(--paper)); }
.learning-content-placeholder .feature-icon { margin-inline: auto; }
.learning-completion-action { display: flex; align-items: center; justify-content: space-between; gap: var(--s-3); padding-top: var(--s-4); border-top: 1px solid var(--line-soft); }

@media (max-width: 1050px) {
  .curriculum-layout { grid-template-columns: 1fr; }
  .curriculum-sidebar { position: static; }
}
@media (max-width: 800px) {
  .course-filter-grid { grid-template-columns: 1fr 1fr; }
  .course-filter-actions { grid-column: 1 / -1; }
  .course-admin-grid, .learning-course-grid { grid-template-columns: 1fr; }
  .course-prerequisite-grid { grid-template-columns: 1fr; }
  .curriculum-edit-popover[open] { min-width: 0; width: 100%; }
}
@media (max-width: 620px) {
  .course-filter-grid { grid-template-columns: 1fr; }
  .course-filter-actions { grid-column: auto; }
  .course-category-checks { grid-template-columns: 1fr; }
  .course-admin-tabs { margin-inline: calc(var(--s-2) * -1); }
  .course-overview-hero, .learning-course-header, .learning-lesson-page { padding: var(--s-4); }
  .curriculum-section-head { flex-wrap: wrap; }
  .curriculum-edit-popover { width: 100%; }
  .curriculum-edit-popover[open] { width: 100%; }
  .curriculum-lesson { flex-wrap: wrap; }
  .lesson-edit { width: auto; }
  .learning-page-head { flex-direction: column; }
  .learning-lesson-row { padding-inline: var(--s-3); }
  .learning-completion-action { align-items: flex-start; flex-direction: column; }
}

/* ─── OL-CONTENT-000061 · R4 content/media/player UI ─────────── */
.max-900 { max-width: 900px; }
.max-1000 { max-width: 1000px; }
.is-hidden { display: none !important; }
.media-create-grid { align-items: start; }
.media-filter-grid { grid-template-columns: minmax(220px,1fr) 180px auto; }
.media-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--s-3); }
.media-card { display:flex; align-items:flex-start; gap:var(--s-3); border:1px solid var(--line-soft); border-radius:var(--r-input); padding:var(--s-3); min-width:0; }
.media-card-icon, .content-type-icon { width:38px; height:38px; border-radius:10px; background:var(--signal-wash); color:var(--signal-dim); display:grid; place-items:center; flex:none; }
.empty-inline { padding:var(--s-5); color:var(--text-muted); text-align:center; border:1px dashed var(--line); border-radius:var(--r-input); grid-column:1/-1; }
.content-editor-layout { display:grid; grid-template-columns:minmax(0,1fr) 340px; gap:var(--s-4); align-items:start; }
.content-editor-layout > aside { position:sticky; top:var(--s-4); }
.content-block-list { display:flex; flex-direction:column; gap:var(--s-3); }
.content-admin-block { border:1px solid var(--line-soft); border-radius:var(--r-input); padding:var(--s-3); }
.content-admin-head { display:flex; align-items:center; gap:var(--s-3); }
.rich-editor { border:1px solid var(--line); border-radius:var(--r-input); overflow:hidden; background:var(--paper); }
.rich-toolbar { display:flex; flex-wrap:wrap; gap:4px; padding:6px; border-bottom:1px solid var(--line-soft); background:color-mix(in srgb,var(--sand) 40%,var(--paper)); }
.rich-toolbar button { min-width:34px; border:1px solid var(--line); border-radius:7px; background:var(--paper); padding:.35rem .5rem; color:var(--ink); cursor:pointer; }
.rich-canvas { min-height:150px; padding:var(--s-3); outline:none; line-height:1.65; }
.rich-canvas:focus { box-shadow: inset 0 0 0 2px var(--signal); }
.learning-content-stack { display:flex; flex-direction:column; gap:var(--s-5); margin-block:var(--s-5); }
.learning-content-block { min-width:0; }
.learning-rich-text { font-size:1.02rem; line-height:1.75; }
.learning-rich-text h2,.learning-rich-text h3,.learning-rich-text h4 { margin-top:1.4em; }
.ol-video-shell { background:#07111c; border-radius:var(--r-card); overflow:hidden; color:#fff; position:relative; }
.ol-video-shell video,.ol-video-provider iframe { display:block; width:100%; aspect-ratio:16/9; background:#000; border:0; }
.ol-video-provider { aspect-ratio:16/9; width:100%; background:#000; }
.ol-video-meta { display:flex; justify-content:space-between; gap:var(--s-3); align-items:center; padding:.65rem .8rem; font-size:var(--t-xs); color:#d9e4ef; }
.ol-video-progressbar { height:4px; background:#203548; border-radius:4px; overflow:hidden; flex:1; }
.ol-video-progressbar span { display:block; height:100%; background:#17b8a6; width:0; transition:width .2s ease; }
.content-frame { width:100%; min-height:640px; border:1px solid var(--line); border-radius:var(--r-input); background:#fff; }
.audio-player { width:100%; }
.download-card { display:flex; align-items:center; justify-content:space-between; gap:var(--s-3); padding:var(--s-4); border:1px solid var(--line); border-radius:var(--r-input); }
.assignment-card { border-left:4px solid var(--signal); }
.assignment-history { display:flex; flex-direction:column; gap:var(--s-2); }
.assignment-attempt { display:flex; justify-content:space-between; gap:var(--s-3); padding:.7rem 0; border-bottom:1px solid var(--line-soft); }
.lesson-progress-note { padding:.65rem .8rem; border-radius:var(--r-input); background:var(--signal-wash); color:var(--deep); font-size:var(--t-sm); }
.timer-meter { display:flex; align-items:center; gap:var(--s-2); }
.timer-meter progress { max-width:240px; }
@media (max-width:950px){ .content-editor-layout{grid-template-columns:1fr}.content-editor-layout>aside{position:static}.media-grid{grid-template-columns:1fr}.media-filter-grid{grid-template-columns:1fr 1fr}.media-filter-grid .btn{grid-column:1/-1} }
@media (max-width:620px){ .media-filter-grid{grid-template-columns:1fr}.media-filter-grid .btn{grid-column:auto}.content-frame{min-height:480px}.download-card,.assignment-attempt{align-items:flex-start;flex-direction:column} }

/* ─── OL-GROUP-000061 · R5 groups and onboarding ───────────────── */
.group-tabs { border-bottom: 1px solid var(--line-soft); padding-bottom: .75rem; }
.permission-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:.5rem 1rem; }
.break-all { overflow-wrap:anywhere; word-break:break-all; }
.list-row { display:flex; align-items:center; justify-content:space-between; gap:1rem; padding:.8rem 0; border-bottom:1px solid var(--line-soft); }
.list-row:last-child { border-bottom:0; }
[data-seat-field][hidden] { display:none !important; }
@media (max-width:720px){ .permission-grid{grid-template-columns:1fr 1fr}.group-tabs{overflow-x:auto;flex-wrap:nowrap}.group-tabs .btn{white-space:nowrap} }

/* ─── OL-CERT-000051 · Certificate canvas ─────────────────────── */
/* Certificate designer presentation moved to pages.css in 1.0.20. */
.verify-card { margin-block:var(--s-8); }
.metric-label { display:block; font-size:var(--t-xs); text-transform:uppercase; letter-spacing:.08em; color:var(--text-muted); margin-bottom:var(--s-2); }
.metric-value { display:block; font-family:var(--font-display); font-size:var(--t-xl); }
.page-pad { padding-block:var(--s-7); }
/* ─── OL-REPORT-000050 ────────────────────────────────────────── */
.report-bars{display:grid;gap:.75rem;margin-top:1rem}.report-bar-row{display:grid;grid-template-columns:minmax(72px,110px) 1fr auto;align-items:center;gap:.75rem;font-size:.875rem}.report-bar-track{height:.55rem;border-radius:999px;background:var(--border-soft,#e8e8e8);overflow:hidden}.report-bar-track i{display:block;height:100%;border-radius:inherit;background:var(--signal,#17B8A6);min-width:2px}.detail-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem}.detail-list div{padding:.75rem;border:1px solid var(--border-soft,#e8e8e8);border-radius:10px}.detail-list dt{font-size:.75rem;color:var(--muted,#64748b);text-transform:uppercase;letter-spacing:.04em}.detail-list dd{margin:.25rem 0 0;overflow-wrap:anywhere}

/* R10 dynamic course-progress shortcode uses the native progress element
   so published pages retain a strict no-inline-style CSP. */
.ol-progress-native{display:block;width:100%;height:.7rem;margin-top:.55rem;accent-color:var(--ol-primary,#126f82)}

/* ─── OL-UI-000072 · Theme-aware brand assets ──────────────────
   The main logo is the light-surface/default asset. A dark-surface
   variant may be supplied for navy/dark chrome, while the optional
   square mark is reserved for the collapsed admin rail. Existing
   installations with only brand.logo continue to render unchanged.
   ─────────────────────────────────────────────────────────────── */
.brand-logo-set {
  display: inline-grid;
  align-items: center;
  justify-items: start;
  flex: none;
  min-width: 0;
}
.brand-logo-set .brand-logo { grid-area: 1 / 1; }
.brand-logo-set .brand-logo--dark,
.brand-logo-set .brand-logo--mark { display: none; }
.brand-logo-set:not(.has-light-variant) .brand-logo--dark { display: block; }

/* Explicit dark themes/surfaces use the dark-background logo when supplied. */
.sidebar .brand-logo-set.has-dark-variant .brand-logo--light,
.site-header.site-header-dark .brand-logo-set.has-dark-variant .brand-logo--light,
.site-footer.site-footer-dark .brand-logo-set.has-dark-variant .brand-logo--light,
.ol-mode-dark .brand-logo-set.has-dark-variant .brand-logo--light,
[data-theme="dark"] .brand-logo-set.has-dark-variant .brand-logo--light { display: none; }
.sidebar .brand-logo-set.has-dark-variant .brand-logo--dark,
.site-header.site-header-dark .brand-logo-set.has-dark-variant .brand-logo--dark,
.site-footer.site-footer-dark .brand-logo-set.has-dark-variant .brand-logo--dark,
.ol-mode-dark .brand-logo-set.has-dark-variant .brand-logo--dark,
[data-theme="dark"] .brand-logo-set.has-dark-variant .brand-logo--dark { display: block; }

/* The compact desktop/tablet rail gets the square mark if available. */
.admin.is-rail .sidebar .brand-logo-set.has-mark-variant .brand-logo--light,
.admin.is-rail .sidebar .brand-logo-set.has-mark-variant .brand-logo--dark { display: none; }
.admin.is-rail .sidebar .brand-logo-set.has-mark-variant .brand-logo--mark {
  display: block;
  width: 38px;
  height: 38px;
  max-width: 38px;
  object-fit: contain;
}

/* 1.0.26 intentionally makes the expanded dark-mode phone/tablet
   drawer a light sheet. Use the light-surface logo there even though
   the desktop sidebar itself remains dark chrome. */
@media (max-width: 1023px) {
  .ol-mode-dark .admin.is-menu-open .sidebar .brand-logo-set.has-light-variant .brand-logo--dark,
  [data-theme="dark"] .admin.is-menu-open .sidebar .brand-logo-set.has-light-variant .brand-logo--dark { display: none; }
  .ol-mode-dark .admin.is-menu-open .sidebar .brand-logo-set.has-light-variant .brand-logo--light,
  [data-theme="dark"] .admin.is-menu-open .sidebar .brand-logo-set.has-light-variant .brand-logo--light { display: block; }
  .ol-mode-dark .admin.is-menu-open .sidebar .brand-logo-set .brand-logo--mark,
  [data-theme="dark"] .admin.is-menu-open .sidebar .brand-logo-set .brand-logo--mark { display: none; }
}

@media (prefers-color-scheme: dark) {
  .ol-mode-system .auth-shell .brand-logo-set.has-dark-variant .brand-logo--light,
  .ol-mode-system .maintenance-shell .brand-logo-set.has-dark-variant .brand-logo--light { display: none; }
  .ol-mode-system .auth-shell .brand-logo-set.has-dark-variant .brand-logo--dark,
  .ol-mode-system .maintenance-shell .brand-logo-set.has-dark-variant .brand-logo--dark { display: block; }
}

.brand-preview-light {
  background-color: #FFFFFF;
  background-image:
    linear-gradient(45deg, #F0ECE5 25%, transparent 25%),
    linear-gradient(-45deg, #F0ECE5 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #F0ECE5 75%),
    linear-gradient(-45deg, transparent 75%, #F0ECE5 75%);
  border-bottom-color: #E4DED4;
}
.brand-preview-dark {
  background-color: #0E2A47;
  background-image:
    linear-gradient(45deg, rgb(255 255 255 / .05) 25%, transparent 25%),
    linear-gradient(-45deg, rgb(255 255 255 / .05) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgb(255 255 255 / .05) 75%),
    linear-gradient(-45deg, transparent 75%, rgb(255 255 255 / .05) 75%);
  border-bottom-color: rgb(255 255 255 / .14);
}
.brand-preview-mark img { width: 72px; height: 72px; object-fit: contain; }
.brand-upload .brand-surface-label {
  display: inline-flex;
  margin-bottom: var(--s-2);
  font-size: var(--t-xs);
  font-weight: 700;
  color: var(--text-muted);
}