/* ========================================================
   PLATEFORME DE FORMATION — SiS2 · Éducation numérique
   Maquettes haute fidélité · juin 2026
   Charte : fond blanc · encre profonde · bleu M365 (#0078d4)
           typographie système (Segoe UI / Consolas)
   ======================================================== */

:root {
  /* — Fond · surfaces · neutres — */
  --paper:        #FFFFFF;
  --paper-soft:   #F6F7F9;
  --paper-deep:   #EDEFF2;
  --surface:      #FFFFFF;

  --ink:          #1A1D24;
  --ink-soft:     #2C313B;
  --ink-muted:    #5B6271;
  --ink-mute2:    #8A91A0;

  --rule:         #1A1D24;
  --line:         #E2E4E9;
  --line-soft:    #ECEEF2;

  /* — Bleu structurel (sombre, pour fonds typographiques) — */
  --primary:      #1F2937;
  --primary-deep: #0F1620;
  --primary-pale: #E6EAF1;

  /* — Bleu d'accent M365 (#0078d4) : actions, focus, highlights — */
  --accent:       #0078D4;
  --accent-deep:  #106EBE;
  --accent-pale:  #DEECF9;

  /* — Status — */
  --ok:           #107C10;
  --ok-pale:      rgba(16,124,16,.08);
  --warn:         #B45309;
  --bad:          #B23A2B;
  --bad-pale:     rgba(178,58,43,.08);

  /* — Type (système — neutre, sans dépendance externe) — */
  --sans:  "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --serif: var(--sans);
  --mono:  "Cascadia Code", "Cascadia Mono", Consolas, "SFMono-Regular", ui-monospace, "Liberation Mono", monospace;

  /* — Métriques — */
  --max:    1240px;
  --pad-x:  clamp(20px, 4vw, 56px);
  --rad:    2px;
  --rad-lg: 4px;
}

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
}

a       { color: inherit; text-decoration: none; }
button  { font: inherit; cursor: pointer; }
img     { display: block; max-width: 100%; }
h1,h2,h3,h4,p,ul,ol,dl,dd,figure { margin: 0; padding: 0; }
ul,ol   { list-style: none; }


/* ============================================
   MASTHEAD — bandeau supérieur (sombre)
   ============================================ */
.masthead {
  background: var(--ink);
  color: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
}
.masthead__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  min-height: 70px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand__mark {
  width: 30px;
  height: 30px;
  position: relative;
  flex-shrink: 0;
}
.brand__mark::before,
.brand__mark::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--accent);
}
.brand__mark::before { top: 0;    left: 0; }
.brand__mark::after  { bottom: 0; right: 0; }
.brand__lines { line-height: 1.1; }
.brand__title {
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.005em;
}
.brand__sub {
  font-family: var(--mono);
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-mute2);
  margin-top: 3px;
}
.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  justify-self: end;
}
.nav__link {
  font-size: 13.5px;
  color: var(--paper);
  opacity: 0.74;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: opacity .18s, border-color .18s;
}
.nav__link:hover { opacity: 1; }
.nav__link.is-active {
  opacity: 1;
  border-bottom-color: var(--accent);
}
.nav__search {
  position: relative;
  display: flex;
  align-items: center;
}
.nav__search input {
  font: inherit;
  font-size: 13px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--paper);
  padding: 8px 12px 8px 32px;
  width: 220px;
  border-radius: var(--rad);
}
.nav__search input::placeholder { color: rgba(255,255,255,0.55); }
.nav__search input:focus { outline: none; border-color: var(--accent); background: rgba(255,255,255,0.08); }
.nav__search svg {
  position: absolute; left: 11px;
  color: rgba(255,255,255,0.65);
  pointer-events: none;
}
.nav__profile {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 12px 5px 5px;
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--rad);
  font-size: 13px;
}
.nav__profile__avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--paper);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  font-family: var(--mono);
  line-height: 1;
  letter-spacing: 0;
  box-sizing: border-box;
  flex: 0 0 26px;
}


/* ============================================
   FOLIO — bandeau éditorial
   ============================================ */
.folio {
  background: var(--paper-soft);
  border-bottom: 1px solid var(--line);
  position: relative;
}
.demo-off .folio { display: none; }
.folio__close {
  position: absolute;
  top: 50%;
  right: 14px;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1;
  border-radius: 4px;
  cursor: pointer;
  padding: 0;
}
.folio__close:hover { color: var(--ink); border-color: var(--ink); }
.demo-reopen {
  position: fixed;
  bottom: 14px;
  right: 14px;
  z-index: 100;
  padding: 6px 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,.06);
}
.demo-reopen:hover { color: var(--ink); border-color: var(--ink); }
.folio__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 11px var(--pad-x);
  display: flex;
  align-items: baseline;
  gap: 22px;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.folio__num   { font-weight: 700; color: var(--accent); }
.folio__title { color: var(--ink); font-weight: 700; }
.folio__spacer { flex: 1; }
.folio__meta  { color: var(--ink-muted); }


/* ============================================
   PAGE — conteneur principal
   ============================================ */
.page {
  max-width: var(--max);
  margin: 0 auto;
  padding: 56px var(--pad-x) 88px;
}

.kicker {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin: 0 0 48px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.kicker::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--line);
}
.kicker em {
  font-style: normal;
  font-weight: 700;
  text-transform: none;
  letter-spacing: 0.02em;
  color: var(--ink);
  font-size: 12.5px;
}

.hed {
  font-weight: 600;
  font-size: clamp(38px, 5.2vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.022em;
  margin: 0;
}
.hed em {
  font-style: normal;
  color: var(--accent);
}
.dek {
  font-weight: 400;
  font-size: 18px;
  color: var(--ink-muted);
  max-width: 60ch;
  margin: 18px 0 0;
  line-height: 1.55;
}

.crumb {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-bottom: 10px;
}
.crumb a { border-bottom: 1px solid var(--line); padding-bottom: 1px; }
.crumb a:hover { color: var(--accent); border-color: var(--accent); }
.crumb span { color: var(--ink-mute2); padding: 0 6px; }

.section-rule {
  border-top: 2px solid var(--rule);
  margin: 56px 0 28px;
  padding-top: 14px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
}
.section-rule h2 {
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.012em;
}
.section-rule__meta {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
}


/* ============================================
   PORTES D'ENTRÉE — page d'accueil
   ============================================ */
.portes {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: 16px;
}
.porte {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 210px;
  padding: 22px 22px 20px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  overflow: hidden;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.porte:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -16px rgba(0,120,212,.25);
}
.porte__num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.12em;
}
.porte__title {
  font-weight: 600;
  font-size: 22px;
  line-height: 1.18;
  letter-spacing: -0.012em;
  margin: 10px 0 4px;
}
.porte__sub {
  font-size: 13px;
  color: var(--ink-muted);
  line-height: 1.45;
}
.porte__arrow {
  font-family: var(--mono);
  font-size: 18px;
  margin-top: 18px;
  color: var(--accent);
}
.porte--feature {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}
.porte--feature .porte__num  { color: rgba(255,255,255,.7); }
.porte--feature .porte__sub  { color: rgba(255,255,255,.85); }
.porte--feature .porte__arrow { color: var(--paper); }
.porte--feature:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  box-shadow: 0 8px 24px -16px rgba(0,120,212,.4);
}

.porte-all {
  border: 1px dashed var(--line);
  background: transparent;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 22px;
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  text-align: center;
  min-width: 130px;
}
.porte-all:hover { border-color: var(--accent); color: var(--accent); }
.porte-all__arrow { font-size: 24px; margin-top: 10px; color: var(--ink); }


/* ============================================
   TABLE / LISTES SESSIONS
   ============================================ */
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 8px 0 18px;
}
.input {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 9px 12px 9px 32px;
  font: inherit;
  font-size: 13px;
  width: 260px;
  border-radius: var(--rad);
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235B6271' stroke-width='2'><circle cx='11' cy='11' r='7'/><path d='m21 21-4.3-4.3'/></svg>");
  background-repeat: no-repeat;
  background-position: 10px center;
}
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-pale); }

.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.tbl th {
  text-align: left;
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  font-weight: 500;
  padding: 12px 14px;
  border-top: 2px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper-soft);
  white-space: nowrap;
}
.tbl td {
  padding: 18px 14px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
.tbl tbody tr { transition: background .15s; }
.tbl tbody tr:hover td { background: var(--paper-soft); }
.tbl .col-num {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 12px;
  width: 56px;
}
.tbl .col-titre { font-weight: 600; font-size: 15px; }
.tbl .col-titre small {
  display: block;
  color: var(--ink-muted);
  font-weight: 400;
  font-size: 13px;
  margin-top: 3px;
}
.tbl .col-date  { font-family: var(--mono); font-size: 13px; }
.tbl .col-num-r { font-family: var(--mono); font-size: 13px; text-align: right; white-space: nowrap; }
.tbl .col-action { text-align: right; width: 1%; white-space: nowrap; }

.pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink-muted);
  border-radius: var(--rad);
}
.pill--ok   { color: var(--ok);  border-color: rgba(16,124,16,.4);  background: var(--ok-pale); }
.pill--bad  { color: var(--bad); border-color: rgba(178,58,43,.35); background: var(--bad-pale); }
.pill--info { color: var(--accent); border-color: rgba(0,120,212,.3); background: var(--accent-pale); }
.pill--accent { color: var(--accent); border-color: rgba(0,120,212,.4); background: var(--accent-pale); }
.pill--ghost { background: transparent; }


/* ============================================
   BOUTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: inherit;
  font-size: 13.5px;
  padding: 11px 20px;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--rad);
  letter-spacing: 0.005em;
  transition: background .15s, color .15s, border-color .15s;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn--accent { background: var(--accent); border-color: var(--accent); }
.btn--accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.btn--ghost  { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--small  { padding: 6px 12px; font-size: 12px; }
.btn--lg     { padding: 14px 24px; font-size: 15px; }
.btn--block  { width: 100%; justify-content: center; }
.btn .arr    { font-family: var(--mono); }


/* ============================================
   FORMULAIRES
   ============================================ */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}
.field label {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.field input,
.field textarea,
.field select {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 13px 14px;
  font: inherit;
  font-size: 15px;
  font-family: var(--sans);
  color: var(--ink);
  border-radius: var(--rad);
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-pale);
}


/* ============================================
   LOGIN — page split
   ============================================ */
.login {
  min-height: calc(100vh - 110px);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
}
.login__art {
  background: var(--ink);
  color: var(--paper);
  padding: 56px var(--pad-x);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.login__art::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 78% 22%, rgba(0,120,212,.32), transparent 52%),
    radial-gradient(circle at 18% 86%, rgba(0,120,212,.18), transparent 54%);
  opacity: 0.85;
  pointer-events: none;
}
.login__art > * { position: relative; z-index: 1; }
.login__art .kicker { color: var(--accent); }
.login__art .hed { color: var(--paper); font-size: clamp(34px, 4.6vw, 56px); }
.login__art .hed em { color: var(--accent); }
.login__art .dek { color: rgba(255,255,255,0.72); }
.login__seal {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}
.login__form {
  padding: 80px var(--pad-x);
  background: var(--paper-soft);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.login__form-inner {
  max-width: 380px;
  width: 100%;
  margin: 0 auto;
}
.login__form h2 {
  font-weight: 600;
  font-size: 24px;
  margin-bottom: 6px;
  letter-spacing: -0.008em;
}
.login__form .sub {
  color: var(--ink-muted);
  font-size: 14px;
  margin-bottom: 28px;
}


/* ============================================
   CATALOGUE — groupes par porte d'entrée
   ============================================ */
.catgroup { margin-bottom: 56px; }
.catgroup__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 12px;
  margin-bottom: 28px;
}
.catgroup__title {
  font-weight: 600;
  font-size: 30px;
  letter-spacing: -0.018em;
}
.catgroup__num {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.subcat {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}
.subcat:last-child { border-bottom: 0; }
.subcat__label {
  font-weight: 500;
  font-size: 21px;
  letter-spacing: -0.008em;
  color: var(--ink);
}
.subcat__label small {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-top: 6px;
  font-weight: 500;
}
.tools {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.tool {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.tool:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px -14px rgba(0,120,212,.25);
}
.tool__name {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.012em;
}
.tool__meta {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}


/* ============================================
   CATALOGUE V2 — hiérarchie Porte > Catégorie > Outil > Cartes
   ============================================ */
.cat-porte {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  border-top: 2px solid var(--rule);
  padding-top: 18px;
  margin-top: 64px;
}
.cat-porte:first-of-type { margin-top: 0; }
.cat-porte__title { font-size: 28px; font-weight: 600; letter-spacing: -0.015em; margin: 0; }
.cat-porte__meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  white-space: nowrap;
}
.cat-cat {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 18px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  margin-top: 28px;
}
/* Variante pliable (catalogue.html) — cliquable, hover, chevron */
.cat-cat--collapsible {
  cursor: pointer;
  user-select: none;
  transition: background-color .12s, border-color .12s;
}
.cat-cat--collapsible:hover { background: var(--paper); border-color: var(--accent); }
.cat-cat--collapsible:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.cat-cat__chevron {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1;
  margin-left: auto;
  transition: transform .18s;
  display: inline-block;
}
.cat-cat[aria-expanded="true"] .cat-cat__chevron { transform: rotate(180deg); color: var(--accent); }
.cat-cat__panel { margin-top: 4px; }
.cat-cat__title { font-size: 17px; font-weight: 600; letter-spacing: -0.005em; }
.cat-cat__meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.cat-outil {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
  margin-bottom: 12px;
}
.cat-outil__name {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.cat-outil__count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.08em;
}
.cat-outil::after {
  content: '';
  flex: 1;
  border-top: 1px solid var(--line);
}
.cat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.cat-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--rad);
  color: inherit;
  min-height: 130px;
  transition: border-color .15s, transform .15s;
}
.cat-card:hover { border-color: var(--accent); }
.cat-card:hover .cat-card__name { color: var(--accent); }
.cat-card__name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.005em;
  line-height: 1.25;
}
.cat-card__duration {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 4px;
}
.cat-card__desc {
  font-size: 12.5px;
  color: var(--ink-soft);
  line-height: 1.45;
  margin-top: 10px;
}
.cat-card__sessions {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--accent);
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}
.cat-card__sessions--none {
  color: var(--ink-muted);
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  font-size: 12px;
}


/* ============================================
   LEAD (Outil/Formation) — texte + sidebar
   ============================================ */
.lead {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 56px;
  margin-bottom: 40px;
}
.lead__body p {
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin-bottom: 16px;
}
.lead__body p:first-of-type::first-letter {
  font-weight: 600;
  font-size: 3.4em;
  line-height: 0.95;
  float: left;
  margin: 4px 10px -4px 0;
  color: var(--accent);
}
.lead__meta {
  border: 1px solid var(--rule);
  background: var(--paper-soft);
  padding: 24px;
  font-size: 13.5px;
}
.lead__meta dt {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-bottom: 4px;
}
.lead__meta dd { margin: 0 0 14px; }
.lead__meta dd:last-of-type { margin-bottom: 0; }
.lead__meta dd b { font-weight: 700; }

.actions {
  display: flex;
  gap: 14px;
  margin: 28px 0 8px;
  flex-wrap: wrap;
}


/* ============================================
   SESSION — détail (deux colonnes)
   ============================================ */
.session-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 56px;
  margin-top: 24px;
}
.session-side {
  border: 1px solid var(--rule);
  padding: 26px;
  background: var(--surface);
  position: sticky;
  top: 92px;
  align-self: start;
}
.session-side__hed {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.session-side__count {
  font-weight: 600;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -0.028em;
  margin: 8px 0 4px;
}
.session-side__count em {
  font-style: normal;
  color: var(--accent);
}
.session-side__count small {
  font-family: var(--mono);
  font-size: 16px;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  font-weight: 400;
}
.session-side__msg {
  font-size: 13px;
  color: var(--ink-muted);
  margin: 6px 0 22px;
  line-height: 1.45;
}

.kvs { margin: 0; padding: 0; }
.kvs > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  padding: 16px 0;
  border-top: 1px solid var(--line-soft);
  gap: 18px;
}
.kvs > div:last-child { border-bottom: 1px solid var(--line-soft); }
.kvs > div:first-child { border-top: 2px solid var(--rule); }
.kvs dt {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  padding-top: 5px;
}
.kvs dd { margin: 0; font-size: 15px; }
.kvs dd b {
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.005em;
}
.kvs dd .meta {
  display: block;
  color: var(--ink-muted);
  font-size: 13px;
  margin-top: 2px;
}


/* ============================================
   ARBRE — gestion des formations
   ============================================ */
.tree {
  border-top: 2px solid var(--rule);
}
.tree-node {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}
.tree-node[data-depth="1"] { padding-left: 36px; }
.tree-node[data-depth="2"] { padding-left: 76px; }
.tree-node[data-depth="3"] { padding-left: 116px; }
.tree-node[data-depth="1"]::before,
.tree-node[data-depth="2"]::before,
.tree-node[data-depth="3"]::before {
  content: '';
  position: absolute;
  left: 22px; top: 0; bottom: 0;
  border-left: 1px solid var(--line);
}
.tree-node[data-depth="2"]::before { left: 62px; }
.tree-node[data-depth="3"]::before { left: 102px; }

.tree-node__type {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.tree-node__label {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.005em;
}
.tree-node[data-depth="0"] .tree-node__label { font-size: 22px; }
.tree-node[data-depth="3"] .tree-node__label {
  font-size: 15px;
  font-weight: 500;
}
.tree-node__label small {
  display: block;
  font-size: 13px;
  font-weight: 400;
  color: var(--ink-muted);
  margin-top: 2px;
}
.tree-node__actions {
  display: flex;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
}
.tree-node__actions a {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: var(--rad);
}
.tree-node__actions a:hover { border-color: var(--accent); color: var(--accent); }
.tree-add {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding: 12px 0 12px 36px;
  display: block;
  border-bottom: 1px solid var(--line-soft);
}
.tree-add[data-depth="1"] { padding-left: 76px; }
.tree-add[data-depth="2"] { padding-left: 116px; }
.tree-add[data-depth="3"] { padding-left: 156px; }
.tree-add:hover { color: var(--accent-deep); }


/* ============================================
   ONGLETS — page profil
   ============================================ */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--rule);
  margin: 28px 0 0;
}
.tabs a {
  padding: 14px 20px;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabs a.is-active { color: var(--ink); border-bottom-color: var(--accent); }
.tabs a:hover { color: var(--ink); }


/* ============================================
   SOMMAIRE (index)
   ============================================ */
.toc {
  border-top: 2px solid var(--rule);
  margin-top: 44px;
}
.toc__row {
  display: grid;
  grid-template-columns: 76px 1fr 280px 32px;
  gap: 26px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
  transition: background .15s, padding-left .15s;
}
.toc__row:hover {
  background: var(--paper-soft);
  padding-left: 12px;
}
.toc__num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.1em;
  font-weight: 500;
}
.toc__title {
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.012em;
}
.toc__title small {
  display: block;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-top: 6px;
}
.toc__desc {
  font-size: 13.5px;
  color: var(--ink-muted);
  line-height: 1.5;
}
.toc__arrow {
  font-family: var(--mono);
  text-align: right;
  color: var(--ink-muted);
}
.toc__row:hover .toc__arrow { color: var(--accent); }


/* ============================================
   PORTAL — choix d'espace (user / admin)
   ============================================ */
.portal {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 48px;
}
.portal__card {
  display: flex;
  flex-direction: column;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--rule);
  transition: background .15s, border-top-color .15s;
}
.portal__card:hover {
  background: var(--paper-soft);
  border-top-color: var(--accent);
}
.portal__num {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.portal__name {
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.014em;
  margin-top: 14px;
}
.portal__desc {
  font-size: 13.5px;
  color: var(--ink-muted);
  line-height: 1.55;
  margin-top: 10px;
  flex: 1;
}
.portal__go {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  margin-top: 26px;
}
.portal__card:hover .portal__go { color: var(--accent); }
@media (max-width: 720px) {
  .portal { grid-template-columns: 1fr; }
}


/* ============================================
   COLOPHON / FOOTER
   ============================================ */
.colophon {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  margin-top: 96px;
}
.colophon__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 40px var(--pad-x) 28px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  font-size: 13.5px;
}
.colophon h4 {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-muted);
  margin-bottom: 14px;
  font-weight: 700;
}
.colophon ul li { padding: 5px 0; }
.colophon a:hover { color: var(--accent); }
.colophon__seal {
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  letter-spacing: -0.008em;
}
.colophon__seal small {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-muted);
  margin-top: 8px;
}
.colophon__bottom {
  border-top: 1px solid var(--line);
  text-align: center;
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-muted);
  padding: 16px var(--pad-x);
}


/* ============================================
   NOTE MAQUETTE — encart éditorial
   ============================================ */
.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-pale);
  padding: 14px 20px;
  font-size: 13.5px;
  color: var(--ink-soft);
  margin: 24px 0;
  border-radius: 0 var(--rad) var(--rad) 0;
}
.note b {
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--accent-deep);
  margin-right: 4px;
}
.note em { font-style: italic; }


/* ============================================
   CARTES ADMIN
   ============================================ */
.admin-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 36px;
}
.admin-card {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 200px;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.admin-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px -14px rgba(0,120,212,.25);
}
.admin-card__num {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
}
.admin-card__title {
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.012em;
}
.admin-card__desc {
  color: var(--ink-muted);
  font-size: 14px;
  line-height: 1.55;
}
.admin-card__role {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.admin-card--super .admin-card__num { color: var(--ink); }


/* ============================================
   TAGS / THÈMES
   ============================================ */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border: 1px solid var(--line);
  background: var(--paper-soft);
  color: var(--ink-soft);
  border-radius: var(--rad);
}
.table-toolbar .tag {
  cursor: pointer;
  user-select: none;
  transition: background .15s, color .15s, border-color .15s;
}
.table-toolbar .tag:hover { border-color: var(--ink); color: var(--ink); }
.table-toolbar .tag.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}


/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}
.pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1;
  border-radius: 4px;
  cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
}
.pagination__btn:hover:not(:disabled):not(.is-active) {
  border-color: var(--ink);
  color: var(--ink);
}
.pagination__btn.is-active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  cursor: default;
}
.pagination__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.pagination__gap {
  padding: 0 4px;
  color: var(--ink-mute2);
  font-family: var(--mono);
  font-size: 12px;
  user-select: none;
}
.pagination__info {
  margin-left: 14px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: .12em;
}


/* ============================================
   ROSTER — liste des inscrits (vue admin)
   ============================================ */
.roster {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 22px;
  margin-top: 36px;
}
.roster__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}
.roster__title {
  font-weight: 600;
  font-size: 18px;
}
.roster__count {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.roster__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 28px;
  font-size: 14px;
}
.roster__list li {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px dotted var(--line);
}
.roster__list li b { font-weight: 600; }
.roster__list li span {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-muted);
}


/* ============================================
   STATS BAR (page admin / accueil)
   ============================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 2px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin-top: 8px;
}
.stat {
  padding: 18px 22px;
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: 0; }
.stat__label {
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}
.stat__value {
  font-weight: 600;
  font-size: 30px;
  letter-spacing: -0.018em;
  margin-top: 4px;
}
.stat__value em { font-style: normal; color: var(--accent); }


/* ============================================
   RÔLES — démo : visibilité par rôle
   ============================================ */
[data-role-show],
[data-role-min] { display: none; }

.role-standard    [data-role-show="standard"],
.role-admin       [data-role-show="admin"],
.role-super-admin [data-role-show="super-admin"] { display: revert; }

/* Avatar nav : rétablir le inline-flex après le display:revert du rôle actif */
.role-standard    .nav__profile__avatar[data-role-show="standard"],
.role-admin       .nav__profile__avatar[data-role-show="admin"],
.role-super-admin .nav__profile__avatar[data-role-show="super-admin"] {
  display: inline-flex;
}

.role-admin       [data-role-min="admin"],
.role-super-admin [data-role-min="admin"],
.role-super-admin [data-role-min="super-admin"] { display: revert; }

.role-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.role-switch__label {
  color: var(--accent);
  margin-right: 4px;
  font-weight: 700;
}
.role-switch button {
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-muted);
  padding: 4px 10px;
  border-radius: var(--rad);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.role-switch button:hover { border-color: var(--ink); color: var(--ink); }
.role-switch button.is-active,
.role-standard    .role-switch button[data-role="standard"],
.role-admin       .role-switch button[data-role="admin"],
.role-super-admin .role-switch button[data-role="super-admin"] {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}

/* Variante masthead sombre : bouton inactif plus lisible */
.masthead .role-switch button {
  border-color: rgba(255,255,255,0.4);
  color: rgba(255,255,255,0.9);
}
.masthead .role-switch button:hover {
  border-color: var(--paper);
  color: var(--paper);
  background: rgba(255,255,255,0.06);
}

.nav__profile__avatar--standard { background: var(--ink-muted); }
.nav__profile__avatar--admin    { background: var(--primary); }
.nav__profile__avatar--super    { background: var(--accent); }

.nav__logout {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 32px;
  padding: 0 12px;
  font-size: 12.5px;
  color: var(--paper);
  opacity: 0.62;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--rad);
  transition: opacity .15s, color .15s, background .15s, border-color .15s;
}
.nav__logout:hover {
  opacity: 1;
  color: var(--accent);
  background: rgba(255,255,255,0.06);
  border-color: var(--accent);
}

.access-denied {
  text-align: center;
  padding: 64px 0 24px;
  max-width: 640px;
  margin: 0 auto;
}
.access-denied .kicker { justify-content: center; }
.access-denied .kicker::after { display: none; }
.access-denied .kicker::before {
  content: '';
  flex: 1;
  border-top: 1px solid var(--line);
}
.access-denied .hed em { font-style: normal; color: var(--accent); }
.access-denied .dek { margin: 18px auto 32px; }


/* ============================================
   ADMIN SHELL — sidebar gauche + zone contenu
   ============================================ */
.admin-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  background: var(--paper);
}

.admin-sidebar {
  background: var(--paper-soft);
  border-right: 1px solid var(--line);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.admin-sidebar__brand {
  padding: 22px 22px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.admin-sidebar__brand .brand__mark { width: 26px; height: 26px; }
.admin-sidebar__brand .brand__mark::before,
.admin-sidebar__brand .brand__mark::after { width: 12px; height: 12px; }
.admin-sidebar__brand .brand__title { font-size: 14px; }
.admin-sidebar__brand .brand__sub { color: var(--ink-muted); }

.admin-sidebar__chip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0, 120, 212, 0.08);
  padding: 3px 9px;
  border-radius: 999px;
  margin-top: 4px;
}

.admin-nav {
  flex: 1;
  padding: 14px 0 18px;
  display: flex;
  flex-direction: column;
}

.admin-nav__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 22px;
  font-size: 13.5px;
  color: var(--ink);
  border-left: 2px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.admin-nav__item:hover { background: var(--paper); color: var(--accent); }
.admin-nav__item.is-active {
  border-left-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
  background: var(--paper);
}

.admin-nav__group { margin-top: 16px; }
.admin-nav__group-title {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  padding: 4px 22px 6px;
}

.admin-nav__subitem {
  display: block;
  padding: 7px 22px 7px 38px;
  font-size: 13px;
  color: var(--ink-soft);
  border-left: 2px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.admin-nav__subitem:hover { background: var(--paper); color: var(--ink); }
.admin-nav__subitem.is-active {
  border-left-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
  background: var(--paper);
}

.admin-sidebar__foot {
  padding: 14px 22px 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-sidebar__role-switch {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.admin-sidebar__role-switch__label {
  font-family: var(--mono);
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
}
.admin-sidebar__role-switch__buttons {
  display: flex;
  gap: 4px;
}
.admin-sidebar__role-switch button {
  flex: 1;
  font: inherit;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: var(--paper);
  border: 1px solid var(--line);
  color: var(--ink-muted);
  padding: 4px 6px;
  border-radius: var(--rad);
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.admin-sidebar__role-switch button:hover { border-color: var(--ink); color: var(--ink); }
.role-admin       .admin-sidebar__role-switch button[data-role="admin"],
.role-super-admin .admin-sidebar__role-switch button[data-role="super-admin"] {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}

.admin-sidebar__user {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink);
}
.admin-sidebar__user__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--paper);
  font-size: 10.5px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.admin-sidebar__logout {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  padding: 4px 0;
}
.admin-sidebar__logout:hover { color: var(--accent); }

.admin-main {
  padding: 32px 40px 88px;
  background: var(--paper);
}
.admin-main .kicker { margin-top: 0; }

/* Rythme vertical des pages admin — un peu plus aéré que sur le site standard */
.admin-main .section-rule { margin-bottom: 36px; }
.admin-main .section-rule + * { margin-top: 0; }
.admin-main .table-toolbar { margin: 0 0 28px; }
.admin-main .tbl { margin-bottom: 48px; }
.admin-main .tbl + .section-rule { margin-top: 64px; }

/* Pas de marge entre l'admin-shell et le colophon (sinon gap blanc en bas) */
.admin-shell + .colophon { margin-top: 0; }


/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1080px) {
  .portes { grid-template-columns: repeat(2, 1fr); }
  .portes .porte-all { grid-column: span 2; min-width: auto; }
  .nav__search input { width: 160px; }
}
@media (max-width: 880px) {
  .masthead__inner { grid-template-columns: auto auto; }
  .nav { gap: 14px; }
  .nav__search, .brand__sub, .nav__profile span { display: none; }
  .lead { grid-template-columns: 1fr; }
  .session-grid { grid-template-columns: 1fr; }
  .session-side { position: static; }
  .login { grid-template-columns: 1fr; }
  .login__art { padding: 36px var(--pad-x); }
  .colophon__inner { grid-template-columns: 1fr 1fr; gap: 28px; }
  .subcat { grid-template-columns: 1fr; gap: 14px; }
  .admin-cards { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .roster__list { grid-template-columns: 1fr; }
  .role-switch { display: none; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; height: auto; }
  .admin-main { padding: 24px 20px 64px; }
}