/* ═══════════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════════ */
.outil-wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 34px 24px 80px;
}

/* HERO */
.ports-hero {
  background:
    radial-gradient(circle at 18% 20%, rgba(30,100,152,.28), transparent 28%),
    linear-gradient(135deg, #0B1018 0%, #121A24 58%, #0D1117 100%);
  padding: 54px 80px 50px;
  text-align: center;
}
.ports-kicker {
  font-family: var(--mono);
  font-size: 12px;
  color: #93c5fd;
  margin-bottom: 14px;
}
.ports-hero h1 {
  max-width: 760px;
  margin: 0 auto 14px;
  font-family: 'Instrument Serif', Georgia, serif;
  font-size: clamp(34px, 4.4vw, 54px);
  font-weight: 400;
  line-height: 1.08;
  color: #f1f5f9;
}
.ports-hero p {
  max-width: 650px;
  margin: 0 auto;
  color: #dbe5f1;
  font-size: 15px;
  line-height: 1.65;
}

/* SUMMARY CARDS */
.ports-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}
.ports-summary div {
  min-height: 112px;
  padding: 18px;
  background: var(--bg2);
  border: 1px solid rgba(26,22,18,.10);
  border-radius: 6px;
  box-shadow: 0 10px 26px rgba(26,22,18,.045);
}
.ports-summary strong {
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--accent);
}
.ports-summary span {
  display: block;
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
}

/* ONGLETS */
.itil-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 18px;
  padding: 6px;
  background: rgba(251,249,246,.76);
  border: 1px solid rgba(26,22,18,.10);
  border-radius: 6px;
  box-shadow: 0 8px 20px rgba(26,22,18,.045);
}
.itil-tab {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: transparent;
  color: var(--text2);
  font-size: 13px;
  font-family: var(--sans);
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .15s, box-shadow .15s;
}
.itil-tab span { display: block; line-height: 1.2; }
.itil-tab small { display: block; margin-top: 4px; font-size: 11px; font-weight: 500; color: var(--text3); }
.itil-tab:hover {
  color: var(--text);
  background: rgba(244,239,230,.96);
  border-color: rgba(30,100,152,.28);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(26,22,18,.08);
}
.itil-tab.active {
  background: var(--bg2);
  border-color: var(--accent);
  color: var(--text);
  box-shadow: inset 0 2px 0 var(--accent), 0 8px 18px rgba(26,22,18,.06);
}
.itil-tab.active small { color: var(--accent); }
.tab-content { display: none; }
.tab-content.active {
  display: block;
  background: rgba(251,249,246,.58);
  border: 1px solid rgba(26,22,18,.08);
  border-radius: 6px;
  padding: 18px;
}

@media(max-width:700px) {
  .ports-hero { padding: 42px 18px; }
  .ports-summary { grid-template-columns: 1fr; }
  .ports-summary div { min-height: auto; }
  .itil-tab { padding: 8px 9px; font-size: 12px; }
  .itil-tab small { font-size: 10px; }
}

/* ═══════════════════════════════════════════════════════
   COULEURS PAR COUCHE OSI
═══════════════════════════════════════════════════════ */
:root {
  --c7: #64748b;
  --c6: #786fa6;
  --c5: #8a6f95;
  --c4: #4f7fac;
  --c3: #4f9c78;
  --c2: #b98747;
  --c1: #b66363;
}

/* ═══════════════════════════════════════════════════════
   ONGLET COURS — COUCHES ACCORDÉON
═══════════════════════════════════════════════════════ */
.osi-stack { display: flex; flex-direction: column; gap: 8px; }

.osi-layer {
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all .2s;
  cursor: pointer;
}
.osi-layer.open { box-shadow: 0 4px 20px rgba(0,0,0,.08); }

.osi-layer:hover {
  background: var(--bg3);
}
.osi-layer:hover .osi-num {
  filter: brightness(1.15);
}

.osi-layer-header {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  align-items: center;
}
.osi-num {
  width: 52px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.osi-name-wrap { padding: 0 16px; }
.osi-name { font-size: 15px; font-weight: 700; color: var(--text); }
.osi-name-en { font-size: 11px; font-family: var(--mono); color: var(--text3); margin-top: 2px; }
.osi-arrow {
  padding: 0 16px;
  font-size: 12px;
  color: var(--text3);
  transition: transform .2s;
  user-select: none;
}
.osi-layer.open .osi-arrow { transform: rotate(180deg); }

.osi-body {
  overflow: hidden;
  height: 0;
  transition: height 0.4s ease;
  background: var(--bg2);
  padding: 0 20px 0 68px;
}
.osi-layer.open .osi-body {
  border-top: 1px solid var(--border);
  padding: 20px 20px 20px 68px;
}

.osi-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}
.osi-info-card {
  background: rgba(244,239,230,.52);
  border: 1px solid rgba(26,22,18,.08);
  border-radius: 6px;
  padding: 12px;
}
.osi-block-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 6px;
}
.osi-block-items { display: flex; flex-wrap: wrap; gap: 5px; }
.osi-tag {
  display: inline-block;
  font-size: 11px;
  font-family: var(--mono);
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text2);
}
.osi-role {
  font-size: 14px;
  color: var(--text);
  line-height: 1.65;
  margin-bottom: 12px;
  font-weight: 500;
}
.osi-analogy {
  font-size: 12px;
  color: var(--text3);
  padding: 12px 14px;
  background: var(--bg3);
  border-radius: 8px;
  border-left: 2px solid var(--border);
  line-height: 1.6;
  margin-bottom: 12px;
}
.osi-analogy strong { color: var(--text2); }

.osi-pratique{margin-top:12px;padding:12px 14px;background:var(--bg3);border-radius:8px;border-left:2px solid var(--accent);font-size:13px;line-height:1.6}
.osi-pratique-label{font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
.osi-pratique-symptome,
.osi-pratique-diag{color:var(--text2);margin-bottom:10px}
.osi-pratique-symptome span,
.osi-pratique-diag span{
  display:block;
  margin-bottom:4px;
  font-family:var(--mono);
  font-size:10px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text3);
}
.osi-pratique-cmd{font-family:var(--mono);font-size:12px;background:#0d1117;color:#e6edf3;padding:8px 12px;border-radius:6px;margin-bottom:6px}
.osi-pratique-result{font-size:12px;color:var(--text3)}

/* Couleurs par couche */
.l7 .osi-num { background: var(--c7); } .l7.open { border-color: var(--c7); border-width: 2px; }
.l6 .osi-num { background: var(--c6); } .l6.open { border-color: var(--c6); border-width: 2px; }
.l5 .osi-num { background: var(--c5); } .l5.open { border-color: var(--c5); border-width: 2px; }
.l4 .osi-num { background: var(--c4); } .l4.open { border-color: var(--c4); border-width: 2px; }
.l3 .osi-num { background: var(--c3); } .l3.open { border-color: var(--c3); border-width: 2px; }
.l2 .osi-num { background: var(--c2); } .l2.open { border-color: var(--c2); border-width: 2px; }
.l1 .osi-num { background: var(--c1); } .l1.open { border-color: var(--c1); border-width: 2px; }

.schema-layer-btn.l7 { background: var(--c7); }
.schema-layer-btn.l6 { background: var(--c6); }
.schema-layer-btn.l5 { background: var(--c5); }
.schema-layer-btn.l4 { background: var(--c4); }
.schema-layer-btn.l3 { background: var(--c3); }
.schema-layer-btn.l2 { background: var(--c2); }
.schema-layer-btn.l1 { background: var(--c1); }

.voyage-layer.l7 { background: var(--c7); }
.voyage-layer.l6 { background: var(--c6); }
.voyage-layer.l5 { background: var(--c5); }
.voyage-layer.l4 { background: var(--c4); }
.voyage-layer.l3 { background: var(--c3); }
.voyage-layer.l2 { background: var(--c2); }
.voyage-layer.l1 { background: var(--c1); }

/* ═══════════════════════════════════════════════════════
   MÉMO MNÉMOTECHNIQUE
═══════════════════════════════════════════════════════ */
.moyen-memo {
  margin-top: 28px;
  margin-left: auto;
  margin-right: auto;
  padding: 16px 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 500px;
}
.moyen-memo-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 12px;
  text-align: center
}
.moyen-memo-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
}
.moyen-memo-row:last-child { border-bottom: none; }
.moyen-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  background: var(--accent);
}

.moyen-memo-row:hover {
  background: var(--bg3);
  border-radius: 6px;
}
.moyen-memo-row:hover .moyen-num {
  filter: brightness(1.15);
}

.moyen-name { font-size: 13px; font-weight: 600; color: var(--text); flex: 1; }
.moyen-en { font-size: 11px; font-family: var(--mono); color: var(--text3); }
.moyen-acronyme {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text2);
  padding: 10px 14px;
  background: var(--bg3);
  border-radius: 8px;
  line-height: 1.6;
}
.moyen-acronyme strong { color: var(--accent); }

/* ═══════════════════════════════════════════════════════
   ONGLET SCHÉMA — CONTRÔLES
═══════════════════════════════════════════════════════ */
.schema-controls { 
  display: flex; 
  gap: 10px; 
  margin-bottom: 24px; 
  flex-wrap: wrap;
  justify-content: center;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.schema-btn {
  padding: 8px 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--text2);
  font-size: 13px;
  font-family: var(--sans);
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
}
.schema-btn:hover { border-color: var(--accent); color: var(--text); }
.schema-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Mode couches cliquables */
.schema-layers { display: none; max-width: 700px; margin-left: auto; margin-right: auto; }
.schema-layers.active { display: block; }
.schema-stack { display: flex; flex-direction: column; gap: 4px; max-width: 700px; margin: 0 auto; }
.schema-layer-btn {
  display: grid;
  grid-template-columns: 52px 1fr 100px;
  align-items: center;
  width: 100%;
  border-radius: 8px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, filter .15s, opacity .15s;
  border: 2px solid transparent;
  overflow: hidden;
  position: relative;
}
.schema-layer-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,.10);
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s;
}
.schema-layer-btn:hover {
  border-color: rgba(26,22,18,.20);
  box-shadow: 0 8px 18px rgba(26,22,18,.10);
  filter: saturate(1.06) brightness(1.03);
}
.schema-layer-btn:hover::after {
  opacity: 1;
}
.schema-layer-btn.active-layer {
  border-color: var(--accent);
  box-shadow: inset 4px 0 0 rgba(255,255,255,.82), 0 10px 22px rgba(30,100,152,.14);
  filter: saturate(1.08) brightness(1.02);
}
.schema-layer-btn.active-layer::after {
  opacity: .12;
}
.sl-num {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 800;
  color: #fff;
}
.sl-name { padding: 0 14px; font-size: 13px; font-weight: 700; color: #fff; }
.sl-tag { padding: 0 10px; font-size: 10px; font-family: var(--mono); color: rgba(255,255,255,.7); text-align: right; }
.schema-detail {
  width: 100%;
  box-sizing: border-box;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 16px;
  padding: 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  min-height: 120px;
}
.schema-detail-title { font-size: 16px; font-weight: 700; margin-bottom: 8px;color: var(--accent);}
.schema-detail-content { font-size: 13px; color: var(--text2); line-height: 1.7; }
.schema-detail-title {color: var(--accent);}
.schema-detail-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.schema-detail-tags .osi-tag { max-width: 100%; overflow-wrap: anywhere; }

/* Mode voyage paquet */
.schema-voyage { display: none; max-width: 700px; margin-left: auto; margin-right: auto; }
.schema-voyage.active { display: block; }
.voyage-wrap {
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  gap: 0;
  align-items: start;
  max-width: 700px;
  margin: 0 auto;
}
.voyage-side { display: flex; flex-direction: column; gap: 3px; }
.voyage-side-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text3);
  text-align: center;
  margin-bottom: 10px;
  font-family: var(--mono);
}
.voyage-layer {
  border-radius: 6px;
  padding: 10px 14px;
  cursor: pointer;
  transition: all .2s;
  border: 2px solid var(--border);
  position: relative;
  margin-bottom: 4px;
}
.voyage-layer.highlighted {
  border-color: var(--border);
  border-width: 3px;
  transform: scale(1.05);
  box-shadow: 0 0 16px rgba(255,255,255,0.5);
  z-index: 10;
  position: relative;
}
.voyage-layer-name { font-size: 12px; font-weight: 700; color: #fff; }
.voyage-layer-action { font-size: 10px; color: rgba(255,255,255,.75); margin-top: 2px; font-family: var(--mono); }
.voyage-middle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 32px;
  gap: 3px;
  position: relative;
}
.voyage-middle::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--border);
}
.voyage-arrow-step {
  width: 40px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0px;
  color: var(--text3);
  transition: color .3s;
}
.voyage-arrow-step.active-arrow { color: var(--accent); }
.voyage-info {
  max-width: 700px;
  margin-top: 20px;
  padding: 16px 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text2);
  line-height: 1.7;
  min-height: 80px;
  margin-left: auto;
  margin-right: auto;
}
.voyage-controls { 
  display: flex; 
  gap: 10px; 
  margin-top: 16px; 
  align-items: center; 
  flex-wrap: wrap;
  justify-content: center;
}
.btn-voyage {
  padding: 8px 18px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-family: var(--sans);
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
}
.btn-voyage:hover { opacity: .85; }
.btn-voyage:disabled { opacity: .35; cursor: default; }
.btn-voyage.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text2);
}
.btn-voyage.secondary:hover { border-color: var(--accent); color: var(--text); opacity: 1; }
.voyage-step-label { font-size: 11px; font-family: var(--mono); color: var(--text3); }

/* ═══════════════════════════════════════════════════════
   ONGLET LAB
═══════════════════════════════════════════════════════ */
#lab-cours-wrap .steps-progress { margin-bottom: 16px; }
.lc-done {
  text-align: center;
  padding: 32px 16px;
}
.lc-done-title {
  font-family: var(--serif, Georgia, serif);
  font-size: 26px;
  color: var(--green);
  margin-bottom: 8px;
}
.lc-done-sub { font-size: 14px; color: var(--text2); }
.lc-done-quiz { font-size: 14px; color: var(--text2); margin-top: 10px; }
.lc-done-quiz a { color: var(--accent); font-weight: 600; text-decoration: none; }
.lc-done-quiz a:hover { opacity: .75; }

/* ═══════════════════════════════════════════════════════
   ONGLET QUIZ
═══════════════════════════════════════════════════════ */
.quiz-intro {
  text-align: center;
  padding: 48px 20px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.quiz-intro-icon { font-size: 52px; margin-bottom: 16px; }
.quiz-intro-title { font-size: 22px; font-weight: 700; margin-bottom: 10px; }
.quiz-intro-desc {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.btn-start {
  padding: 12px 32px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 15px;
  font-family: var(--sans);
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
}
.btn-start:hover { opacity: .85; }

.quiz-progress-bar { height: 4px; background: var(--bg3); border-radius: 2px; overflow: hidden; margin-bottom: 8px; }
.quiz-progress-fill { height: 100%; background: var(--accent); border-radius: 2px; transition: width .4s ease; }
.quiz-top-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.quiz-progress-label { font-size: 11px; color: var(--text3); font-family: var(--mono); }

.quiz-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.quiz-scenario {
  font-size: 12px;
  font-family: var(--mono);
  color: var(--text3);
  background: var(--bg3);
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  line-height: 1.6;
  border-left: 2px solid var(--accent);
}
.quiz-question { font-size: 16px; font-weight: 600; color: var(--text); line-height: 1.5; margin-bottom: 20px; }
.quiz-choices { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.quiz-choice {
  padding: 12px 16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text2);
  font-size: 14px;
  font-family: var(--sans);
  text-align: left;
  cursor: pointer;
  transition: all .15s;
}
.quiz-choice:hover:not(:disabled) { border-color: var(--accent); color: var(--text); }
.quiz-choice.correct { background: #052e1c; border-color: #065f46; color: #34d399; cursor: default; }
.quiz-choice.wrong   { background: #2a0a0a; border-color: #7f1d1d; color: #fca5a5; cursor: default; }
.quiz-choice.reveal  { background: #052e1c; border-color: #065f46; color: #34d399; cursor: default; }
.quiz-choice:disabled { cursor: default; }
.quiz-feedback { padding: 12px 16px; border-radius: 8px; font-size: 13px; line-height: 1.6; margin-bottom: 16px; }
.quiz-feedback.ok { background: #052e1c; border: 1px solid #065f46; color: #6ee7b7; }
.quiz-feedback.ko { background: #2a0a0a; border: 1px solid #7f1d1d; color: #fca5a5; }
.btn-next {
  padding: 10px 24px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  font-family: var(--sans);
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
}
.btn-next:hover { opacity: .85; }

.quiz-score-wrap { text-align: center; padding: 48px 20px; background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; }
.quiz-score-icon { font-size: 52px; margin-bottom: 12px; }
.quiz-score-num { font-size: 48px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.quiz-score-label { font-size: 16px; color: var(--text2); margin-bottom: 10px; }
.quiz-score-detail { font-size: 13px; color: var(--text3); margin-bottom: 32px; }
.quiz-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn-retry {
  padding: 10px 24px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 14px;
  font-family: var(--sans);
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s;
}
.btn-retry:hover { opacity: .85; }
.btn-memo {
  padding: 10px 24px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text2);
  font-size: 14px;
  font-family: var(--sans);
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
}
.btn-memo:hover { border-color: var(--accent); color: var(--text); }

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */
@media (max-width: 700px) {
  .outil-wrap   { padding: 24px 16px 60px; }
  .outil-title  { font-size: 22px; }
  .itil-tab     { padding: 8px 12px; font-size: 13px; }
  .osi-body     { padding: 16px; }
  .osi-grid     { grid-template-columns: 1fr; }
  .voyage-wrap  { grid-template-columns: 1fr 40px 1fr; }
  .voyage-side-label { font-size: 9px; }
  .quiz-card    { padding: 20px 16px; }
  .quiz-question { font-size: 15px; }
}

/* ports.css gere le hero, ports-summary et itil-tabs */


.osi-page .osi-stack,
.osi-page #quiz-container,
.osi-page .schema-layers,
.osi-page .schema-voyage,
.osi-page .schema-controls,
.osi-page .schema-stack,
.osi-page .voyage-wrap,
.osi-page .voyage-info,
.osi-page .quiz-card,
.osi-page .quiz-intro,
.osi-page .quiz-score-wrap {
  width: 100%;
  max-width: none;
  box-sizing: border-box;
}

.osi-page .schema-stack {
  width: min(100%, 560px);
  max-width: 560px;
  box-sizing: border-box;
}

.osi-page .schema-detail {
  width: min(100%, 700px);
  max-width: 700px;
  box-sizing: border-box;
}