:root{
  --bg-outer:#F1EDE6;
  --bg:#F4EFE6;--bg2:#FBF9F6;--bg3:#ECE7DC;--bg4: rgba(251,248,244,.98);--bg5: #1e6498;--bg6: #fbf9f6;
  --border:rgba(26,22,18,.10);--border2:#0d3358;
  --text:#18130E;--text2:#4A433B;--text3:#8C857D;--text4:#1e6498;
  --accent:#1e6498;--green:#10b981;--orange:#f59e0b;--red:#ef4444;
  --mono: 'Courier New', monospace;
  --sans: system-ui, sans-serif;
}
html{
  overflow-y:scroll;
  scrollbar-gutter:stable;
}
*{box-sizing:border-box;margin:0;padding:0}
body{margin:0;padding:0}

body{
  font-family:var(--sans);
  background:var(--bg-outer);
  color:var(--text);
  min-height:100vh;
}


/* RECTANGLE CENTRAL */
.page-wrap{
  max-width:1100px;
  margin:0 auto;
  background:var(--bg);
  border-left:1px solid var(--border);
  border-right:1px solid var(--border);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  position:relative;
  overflow-x: clip;
}

/* NAV — sticky DANS le rectangle */
#nav-placeholder{
  position:sticky;
  top:0;
  z-index:100;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2), inset 0 -2px 0 0 #f4efe6;
  border-bottom: 1px solid var(--bg5);
}
.page-wrap nav{
  position:sticky;
  top:0;
  z-index:100;
  height:72px;
  background: rgba(251,248,244,.98);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 40px;
  width:100%;
  left:auto;
  right:auto;
}

.logo{display:flex;align-items:center;gap:9px;text-decoration:none}
.logo img{height:46px;width:auto}
.logo-box{width:28px;height:28px;background:var(--accent);border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;font-weight:700;color:#fff}
.logo-name{font-family:var(--mono);font-weight:700;font-size:16px;color:var(--text)}
.logo-name span{color:var(--accent)}
.nav-links{display:flex;gap:22px;list-style:none;align-items:center;height:52px;flex:1;justify-content:center;margin:0 auto}
.nav-links > li{display:flex;align-items:center;height:52px}
.nav-links a{font-size:12px;color:var(--text2);text-decoration:none;transition:color .2s}
.nav-links > li > a,
.nav-label{
  display:flex;
  align-items:center;
  height:52px;
  padding:0 4px;
  line-height:1;
  border-bottom:2px solid transparent;
}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-btn{font-size:12px;font-family:var(--mono);padding:6px 16px;border:1px solid var(--border);border-radius:6px;background:transparent;color:var(--text2);cursor:pointer;text-decoration:none;transition:all .2s}
.nav-btn:hover{border-color:var(--accent);color:var(--accent)}

/* DROPDOWN NAV */
.nav-label{gap:5px;font-size:12px;color:var(--text2);cursor:default}
.nav-label.active{color:var(--text);border-bottom-color:var(--accent)}
.has-dropdown:hover .nav-label{color:var(--text)}
.nav-links > li.has-dropdown{position:relative}
.nav-links > li.has-dropdown > a{display:flex;align-items:center;gap:5px;height:60px;padding:0 4px;border-bottom:2px solid transparent}
.nav-links > li.has-dropdown > a.active{border-bottom-color:var(--accent)}
.nav-arrow{font-size:9px;color:var(--text3);display:inline-block;transition:transform .2s,color .2s}
.has-dropdown:hover .nav-arrow{transform:rotate(180deg);color:var(--text2)}
.dropdown{
  position:absolute;top:52px;left:-12px;
  background:rgba(251,249,246,.98);border:1px solid rgba(26,22,18,.10);border-radius:8px;
  min-width:238px;padding:7px;
  opacity:0;pointer-events:none;
  transform:translateY(-6px);
  transition:opacity .18s,transform .18s;
  z-index:200;
  box-shadow: 0 14px 34px rgba(26,22,18,.14), 0 2px 8px rgba(26,22,18,.08);
}
.has-dropdown:hover .dropdown{opacity:1;pointer-events:all;transform:translateY(0)}
.dropdown-section{font-size:9px;font-family:var(--mono);color:var(--accent);text-transform:uppercase;letter-spacing:.08em;padding:4px 9px;background:linear-gradient(to right,rgba(30,100,152,.12),transparent);margin:4px 0 2px;font-weight:700}
.dropdown a{display:flex;align-items:center;gap:10px;padding:8px 9px;border-radius:6px;font-size:12px;color:var(--text2);text-decoration:none;transition:background .15s,color .15s;height:auto;border-bottom:none}
.dropdown a:hover{background:rgba(244,239,230,.70);color:var(--text)}
.dropdown-disabled{display:flex;align-items:center;gap:10px;padding:8px 9px;border-radius:6px;font-size:12px;color:var(--text3);opacity:.75;cursor:default}
.dropdown-divider{height:1px;background:var(--border);margin:4px 0}

/* HERO */
.hero{padding:72px 40px 24px;text-align:center;background:var(--bg4);}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-family:var(--mono);padding:4px 12px;border:1px solid var(--border);border-radius:20px;color:var(--text2);margin-bottom:24px}
.badge-dot{width:6px;height:6px;background:var(--green);border-radius:50%}
h1{font-size:clamp(28px,4vw,48px);font-weight:800;line-height:1.1;margin-bottom:16px;letter-spacing:-.02em}
h1 em{font-style:normal;color:var(--text2)}
.hero-sub{font-size:15px;color:var(--text2);max-width:520px;margin:0 auto 36px;line-height:1.7}
.btn-group{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn-primary{padding:11px 28px;background:var(--accent);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:700;cursor:pointer;text-decoration:none;font-family:var(--sans);transition: opacity .15s, transform .15s;}
.btn-primary:hover {opacity: .85;transform: translateY(-1px);}
.btn-secondary{padding:11px 28px;background:transparent;color:var(--text);border:1px solid var(--border);border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;font-family:var(--sans);transition: opacity .15s, transform .15s;}
.btn-secondary:hover {opacity: .85;transform: translateY(-1px);}

/* STATS */
.stats{display:flex;justify-content:center;border:1px solid var(--border);border-radius:10px;max-width:420px;margin:40px auto 0;background:var(--bg2)}
.stat{flex:1;padding:14px;text-align:center;border-right:1px solid var(--border)}
.stat:last-child{border-right:none}
.stat-num{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--text);display:block}
.stat-label{font-size:11px;color:var(--text2);margin-top:2px;display:block}

/* SECTION */
section{padding:48px 40px;background:var(--bg);box-shadow: 0 2px 12px rgba(26,22,18,.08) inset, 0 -2px 12px rgba(26,22,18,.08) inset;}
.section-alt{background:var(--bg4);box-shadow:none;padding:48px 40px;display:flex;flex-direction:column;align-items:center}
.section-label{font-size:11px;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text2);text-align:center;margin-bottom:20px}
h2{font-size:24px;font-weight:700;margin-bottom:24px;text-align:center}

/* CARDS */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:24px;text-decoration:none;color:inherit;transition:border-color .2s,transform .2s;display:block}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card-icon{font-size:24px;margin-bottom:14px}
.card-tag{display:inline-block;font-size:10px;font-family:var(--mono);padding:2px 8px;border-radius:4px;background:var(--bg3);color:var(--text2);border:1px solid var(--border);margin-bottom:10px}
.card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.card p{font-size:13px;color:var(--text2);line-height:1.6}
.card-footer{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}
.card-meta{font-size:11px;color:var(--text3);font-family:var(--mono)}
.card-arrow{font-size:14px;color:var(--accent)}

/* LAB LIST */
.lab-list{display:flex;flex-direction:column;gap:10px}
.lab-item{display:flex;align-items:center;gap:16px;background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:16px 20px;text-decoration:none;color:inherit;transition:border-color .2s}
.lab-item:hover{border-color:var(--accent)}
.lab-num{font-family:var(--mono);font-size:12px;color:var(--text3);min-width:32px}
.lab-info{flex:1}
.lab-title{font-size:14px;font-weight:600;margin-bottom:3px}
.lab-desc{font-size:12px;color:var(--text2)}
.lab-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.tag{font-size:10px;font-family:var(--mono);padding:2px 7px;border-radius:4px;background:var(--bg3);color:var(--text2);border:1px solid var(--border)}
.tag.blue{border-color:#93c5fd;color:#1e40af}
.tag.green{border-color:#6ee7b7;color:#065f46}
.tag.orange{border-color:#fcd34d;color:#92400e}
.tag.red{border-color:#fca5a5;color:#991b1b}
.lab-arrow{font-size:14px;color:var(--text3)}

/* LEVEL */
.level{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-family:var(--mono);padding:3px 10px;border-radius:20px;margin-bottom:20px}
.level.debutant{background:#052e1c;color:var(--green);border:1px solid #065f46}
.level.intermediaire{background:#1e3a5f;color:#60a5fa;border:1px solid #1d4ed8}
.level.avance{background:#2d1a00;color:var(--orange);border:1px solid #92400e}

/* TOOLS */
.tool-card{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:18px;text-decoration:none;color:inherit;transition:border-color .2s;display:block}
.tool-card:hover{border-color:var(--green)}
.tool-icon{font-size:20px;margin-bottom:10px}
.tool-title{font-size:14px;font-weight:600;margin-bottom:4px}
.tool-desc{font-size:12px;color:var(--text2);line-height:1.5}

/* PARCOURS */
.parcours-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.parcours-col{background:var(--bg2);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.parcours-col-header{padding:16px 20px;border-bottom:1px solid var(--border)}
.parcours-col-title{font-size:14px;font-weight:700}
.parcours-col-sub{font-size:11px;color:var(--text2);margin-top:3px}
.parcours-items{padding:12px}
.parcours-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:7px;margin-bottom:4px;font-size:13px;color:var(--text2);cursor:pointer;transition:background .15s;text-decoration:none}
.parcours-item:hover{background:var(--bg3);color:var(--text)}
.parcours-item-num{font-family:var(--mono);font-size:11px;color:var(--text3);min-width:24px}
.parcours-item-name{flex:1}
.parcours-item-status{width:8px;height:8px;border-radius:50%;background:var(--border)}

/* DIVIDER */
.divider{height:1px;background:var(--border);margin:0 40px}

/* FOOTER */
footer{
  margin-top:auto;
  padding:28px 40px 0;
  border-top:1px solid var(--border2);
  background:rgba(251,249,246,.98);
}
.footer-main{display:grid;grid-template-columns:1fr auto auto;gap:60px;align-items:start;padding-bottom:24px}
.footer-brand{display:flex;flex-direction:column;gap:5px}
.footer-name{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--text)}
.footer-tagline{font-size:12px;color:var(--text2)}
.footer-topics{font-family:var(--mono);font-size:10px;color:var(--text3)}
.footer-col{display:flex;flex-direction:column;gap:9px}
.footer-col-title{font-family:var(--mono);font-size:10px;font-weight:700;color:var(--text3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:2px}
.footer-col a{font-size:12px;color:var(--text2);text-decoration:none;transition:color .15s}
.footer-col a:hover{color:var(--text)}
.footer-bottom{font-size:11px;color:var(--text3);font-family:var(--mono);padding:14px 0;border-top:1px solid var(--border)}

/* PUB */
.pub-slot{text-align:center;font-size:11px;font-family:var(--mono);color:var(--text3);margin:32px 40px;padding:12px;}


/* FORM */
.form-group{margin-bottom:16px}
label{display:block;font-size:13px;color:var(--text2);margin-bottom:6px;font-family:var(--mono)}
input,textarea{width:100%;padding:10px 14px;background:var(--bg2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;font-family:var(--sans);transition:border-color .2s}
input:focus,textarea:focus{outline:none;border-color:var(--accent)}
textarea{height:140px;resize:vertical}

/* ============================================================
   LABS — styles communs à tous les labs
   ============================================================ */
.lab-wrap{display:flex;gap:0;min-height:calc(100vh - 60px)}
.lab-sidebar{width:240px;flex-shrink:0;border-right:1px solid var(--border);padding:24px 0;position:fixed;top:60px;height:calc(100vh - 60px);overflow-y:auto;overflow-x:hidden;background:var(--bg4);z-index:10}
.lab-sidebar-title{font-size:11px;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text3);padding:24px 20px 12px}
.lab-progress{padding:0 20px 16px}
.lab-progress-label{font-size:12px;color:var(--text2);margin-bottom:6px}
.lab-progress-bar{height:3px;background:var(--bg3);border-radius:2px;overflow:hidden}
.lab-progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .4s}
.lab-nav-item{display:flex;align-items:center;gap:10px;padding:8px 20px;cursor:pointer;font-size:13px;color:var(--text2);border-left:2px solid transparent;transition:all .15s;text-decoration:none}
.lab-nav-item:hover{background:var(--bg3);color:var(--text)}
.lab-nav-item.active{background:var(--bg3);border-left-color:var(--accent);color:var(--text)}
.lab-nav-item.done{color:var(--green)}
.lab-nav-item.done .lab-nav-num{color:var(--green)}
.lab-nav-num{font-family:var(--mono);font-size:11px;color:var(--text3);min-width:20px}
.lab-divider{height:1px;background:var(--border);margin:12px 20px}
.lab-main{margin-left:240px;flex:1;padding:20px;max-width:860px;padding-bottom:80px}
.lab-number{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--accent);text-transform:uppercase;margin-bottom:6px;font-family:var(--mono)}
.lab-title{font-size:28px;font-weight:800;line-height:1.2;margin-bottom:12px}
.lab-concept{font-size:14px;color:var(--text2);padding:12px 16px;background:var(--bg2);border-radius:8px;border-left:3px solid var(--accent);line-height:1.7;margin-bottom:32px}
.lab-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text2);text-decoration:none;margin-bottom:24px;font-family:var(--mono);transition:color .2s}
.lab-back:hover{color:var(--accent)}

/* Topologie */
.topo-wrap{background:var(--bg4);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:32px;overflow-x:auto}

/* Étapes */
.steps-progress{display:flex;gap:6px;margin-bottom:24px;flex-wrap:wrap;align-items:center}
.step-dot{width:30px;height:30px;border-radius:50%;border:1.5px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:11px;font-family:var(--mono);color:var(--text3);cursor:pointer;transition:all .2s;flex-shrink:0}
.step-dot:hover{border-color:var(--text2)}
.step-dot.active{border-color:var(--accent);background:var(--accent);color:#fff}
.step-dot.done{border-color:var(--green);background:#052e1c;color:var(--green)}
.step-card{background:var(--bg4);border:1px solid var(--border);border-radius:12px;padding:28px;margin-bottom:16px}
.step-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.step-num{width:32px;height:32px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex-shrink:0;font-family:var(--mono)}
.step-title-text{font-size:18px;font-weight:700}
.step-body{font-size:14px;color:var(--text2);line-height:1.8;margin-bottom:20px}
.step-body b{color:var(--text)}
.step-body code{font-family:var(--mono);font-size:12px;background:var(--bg3);padding:2px 6px;border-radius:4px;color:var(--orange)}

.nav-burger { display: none; }

.nav-kofi {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  background: transparent;
  color: var(--text3);
  font-size: 12px;
  font-weight: 500;
  text-decoration: none;
  transition: color .15s;
  white-space: nowrap;
  margin-left: 4px;
  font-family: var(--sans);
  border: 1px solid var(--border);
}
.nav-kofi img { display: block; opacity: .7; }
.nav-kofi:hover { color: var(--text); border-color: var(--text3); }
.nav-kofi:hover img { opacity: 1; }

@media(max-width:1100px){
  .page-wrap{border-left:none;border-right:none}
}


@media(max-width:1024px){
  /* NAV */
  #nav-placeholder{position:sticky;top:0;z-index:100}
  .page-wrap nav{padding:0 16px;position:relative}
  .hero{padding:48px 16px 36px}
  section{padding:32px 16px}
  .divider,.pub-slot{margin:0 16px}
  footer{padding:20px 16px 0}
  .footer-main{grid-template-columns:1fr;gap:24px}
  .stats{flex-direction:column;max-width:280px}
  .stat{border-right:none;border-bottom:1px solid var(--border)}
  .stat:last-child{border-bottom:none}
  /* Ko-fi masque sur mobile */
  .nav-kofi { display: none; }
  /* Hamburger */
  .nav-burger{
    display:flex;flex-direction:column;justify-content:space-between;
    width:44px;height:44px;background:transparent;border:none;cursor:pointer;
    padding:12px;position:relative;z-index:9999;
    -webkit-tap-highlight-color:transparent;
  }
  .nav-burger span{
    display:block;height:2px;width:100%;background:var(--text);border-radius:2px;
    transition:transform .25s, opacity .25s;
  }
  .nav-burger.open span:nth-child(1){transform:translateY(9px) rotate(45deg)}
  .nav-burger.open span:nth-child(2){opacity:0}
  .nav-burger.open span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}

  /* Nav mobile */
  .nav-links{
    display:none;flex-direction:column;gap:0;
    position:absolute;top:72px;left:0;right:0;
    background:var(--bg4);border-bottom:1px solid var(--border);
    padding:8px 0;z-index:200;height:auto;
    box-shadow:0 8px 24px rgba(0,0,0,.12);
  }
  .nav-links.open{display:flex}
  .nav-links > li{
    height:auto;
    border-bottom:1px solid var(--border);
    width:100%;
    flex-direction:column;
    align-items:flex-start;
  }
  .nav-links > li:last-child{border-bottom:none}

  .nav-label{
    height:auto;padding:14px 24px;width:100%;
    justify-content:space-between;cursor:pointer;
  }
  .nav-links > li > a{height:auto;padding:14px 24px;width:100%}

  /* Dropdown mobile */
  .has-dropdown .dropdown{
    position:static;opacity:1;pointer-events:all;
    transform:none;box-shadow:none;
    border:none;border-radius:0;
    border-top:1px solid var(--border);
    background:var(--bg3);padding:4px 0;
    display:none;min-width:unset;
    width:100%;
  }
  .has-dropdown.open .dropdown{display:block}
  .dropdown a{
    padding:11px 24px 11px 40px;
    border-radius:0;
    font-size:13px;
  }
  .dropdown-disabled{
    padding:11px 24px 11px 40px;
    border-radius:0;
    font-size:13px;
  }
  .dropdown-section{
    padding:10px 24px 4px 40px;
    font-size:10px;
  }
  .dropdown-divider{margin:4px 24px}

  /* Flèche rotation mobile */
  .has-dropdown.open .nav-arrow{transform:rotate(180deg)}

  /* LABS */
  .lab-sidebar{display:none}
  .lab-main{margin-left:0 !important;padding:20px}
  .lab-wrap ~ footer{margin-left:0 !important}
}


/* ═══════════════════════════════════════════════════════
   ÉTAPES OPTIONNELLES
═══════════════════════════════════════════════════════ */
.step-card.optional { border-color: var(--orange); border-style: dashed; }
.step-dot.opt { background: transparent; color: var(--orange); border-color: var(--orange); }
.lab-nav-num.opt { background: transparent; color: var(--orange); }
.opt-badge          { font-size:10px; font-weight:700; padding:2px 8px; border-radius:20px; background:rgba(245,158,11,0.15); color:var(--orange); margin-left:8px; }

/* ═══════════════════════════════════════════════════════
   SCREENSHOT / ÉTAPES PACKET TRACER
═══════════════════════════════════════════════════════ */
.screenshot {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
}
.screenshot-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.screenshot ol {
  padding-left: 20px;
  margin: 0;
  font-weight: 400;
}
.screenshot ol li {
  margin-bottom: 6px;
}

/* Câbles */
.cable-list{list-style:none;margin-bottom:20px}
.cable-list li{display:flex;align-items:flex-start;gap:10px;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px;color:var(--text2);line-height:1.5}
.cable-list li:last-child{border-bottom:none}
.cable-icon{color:var(--accent);flex-shrink:0;margin-top:1px}
.cable-type{font-size:10px;font-family:var(--mono);background:var(--bg3);color:var(--orange);padding:1px 6px;border-radius:3px;margin-left:4px;white-space:nowrap}

/* CLI */
.cli-block{background:#070a10;border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:16px}
.cli-header{display:flex;align-items:center;justify-content:space-between;padding:8px 14px;background:#0d1018;border-bottom:1px solid var(--border)}
.cli-label{font-size:11px;font-family:var(--mono);color:var(--text3)}
.cli-copy{font-size:11px;font-family:var(--mono);color:var(--accent);background:transparent;border:1px solid var(--border);border-radius:4px;padding:2px 8px;cursor:pointer;transition:all .15s}
.cli-copy:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.cli-body{padding:16px;font-family:var(--mono);font-size:13px;line-height:2}
.cli-comment{color:#3d4f6a}
.cli-line{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.cli-prompt{color:#4ade80}
.cli-cmd{color:#e2e8f0;flex:1 1 auto;word-break:break-word}
.cli-copy-line{background:transparent;border:1px solid var(--border);border-radius:4px;color:var(--accent);font-size:11px;line-height:1;padding:2px 6px;cursor:pointer;opacity:.55;transition:opacity .15s,background-color .15s;flex-shrink:0}
.cli-copy-line:hover{opacity:1;background:rgba(30,100,152,.1)}
.cli-copy-line.copied{opacity:1;color:#10b981;border-color:#10b981}

/* Résultat & Pannes */
.result-box{background:#ecfdf5;border:1px solid #6ee7b7;border-radius:8px;padding:14px 16px;margin-bottom:14px}
.result-box-title{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--green);text-transform:uppercase;margin-bottom:8px;font-family:var(--mono)}
.result-box p{font-size:13px;color:#065f46;line-height:1.7}
.panne-box{background:#fffbeb;border:1px solid #fcd34d;border-radius:8px;padding:14px 16px;margin-bottom:14px}
.panne-box-title{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--orange);text-transform:uppercase;margin-bottom:8px;font-family:var(--mono)}
.panne-item{font-size:13px;color:#92400e;line-height:1.7;padding:5px 0;border-bottom:1px solid #fcd34d}
.panne-item:last-child{border-bottom:none}
.panne-item strong{color:#b45309;display:block;margin-bottom:2px}

/* Navigation étapes */
.step-nav{display:flex;align-items:center;gap:10px;margin-top:20px;flex-wrap:wrap}
.btn-step{padding:9px 20px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:all .15s;border:1px solid var(--border);background:var(--bg3);color:var(--text2);font-family:var(--sans)}
.btn-step:hover{background:var(--border);color:var(--text)}
.btn-step.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-step.primary:hover{opacity:.85;transform:translateY(-1px)}
.btn-step.success{background:var(--green);color:#fff;border-color:var(--green)}
.step-check{display:flex;align-items:center;gap:8px;margin-left:auto;font-size:13px;color:var(--text2);cursor:pointer}
.step-check input{width:16px;height:16px;cursor:pointer;accent-color:var(--green)}

/* QCM */
.quiz-section{margin-top:40px;padding-top:32px;border-top:1px solid var(--border)}
.quiz-title{font-size:16px;font-weight:700;margin-bottom:20px}
.quiz-card{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:14px}
.quiz-q{font-size:14px;font-weight:600;margin-bottom:14px;line-height:1.5}
.quiz-opts{display:flex;flex-direction:column;gap:8px}
.quiz-opt{padding:10px 14px;border-radius:7px;border:1px solid var(--border);background:var(--bg3);font-size:13px;color:var(--text2);cursor:pointer;transition:all .15s;text-align:left;font-family:var(--sans)}
.quiz-opt:hover:not(:disabled){border-color:var(--accent);color:var(--text)}
.quiz-opt.correct{border-color:var(--green);background:#ecfdf5;color:#065f46}
.quiz-opt.wrong{border-color:var(--red);background:#fef2f2;color:#991b1b}
.quiz-explain{font-size:13px;color:var(--text2);margin-top:10px;padding:10px 12px;background:var(--bg3);border-radius:6px;line-height:1.6;display:none}
.quiz-score{font-size:16px;font-weight:700;margin-top:16px;color:var(--green)}

/* Bannière succès */
.done-banner{background:#ecfdf5;border:1px solid #6ee7b7;border-radius:12px;padding:24px;text-align:center;margin-top:32px;display:none}
.done-banner h3{font-size:20px;font-weight:700;color:var(--green);margin-bottom:8px}
.done-banner p{font-size:14px;color:#065f46}

/* Lexique */
.lex{border-bottom:1.5px dashed var(--accent);cursor:pointer;position:relative;display:inline;color:var(--accent);font-weight:600;border-radius:3px;padding:0 1px;transition:background-color .15s}
.lex:hover,.lex.open{background-color:rgba(30,100,152,.12)}
.lex-tooltip{display:none;position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);background:var(--bg3);border:1px solid var(--border);border-radius:8px;padding:10px 14px;font-size:12px;color:var(--text);width:260px;line-height:1.6;z-index:200;pointer-events:none;white-space:normal;text-align:left;box-shadow:0 4px 20px rgba(0,0,0,.4);font-weight:400}
.lex.open .lex-tooltip{display:block}

/* LAB FOOTER */
.lab-wrap ~ footer{margin-left:240px}


/* ═══════════════════════════════════════════════════════
   PAGE INDEX LABS — Liste des niveaux
═══════════════════════════════════════════════════════ */

/* Bannière prérequis */
.prereq-banner{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:16px 20px;margin-bottom:32px;display:flex;align-items:flex-start;gap:14px}
.prereq-icon{font-size:20px;flex-shrink:0;margin-top:2px}
.prereq-text{font-size:13px;color:var(--text2);line-height:1.7}
.prereq-text a{color:var(--accent);font-weight:700;text-decoration:none}
.prereq-text a:hover{opacity:.75}
.prereq-text strong{color:var(--text)}

/* Progression globale */
.progress-global{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:14px 20px;margin-bottom:28px;display:flex;align-items:center;gap:16px}
.progress-global-text{font-size:13px;color:var(--text2);white-space:nowrap}
.progress-global-text strong{color:var(--text)}
.progress-global-bar{flex:1;height:4px;background:var(--bg3);border-radius:2px;overflow:hidden}
.progress-global-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .5s}

/* Blocs niveaux */
.level-block{margin-bottom:8px;border-radius:8px;border:1px solid var(--level-color);background:var(--level-bg)}
.level-dot{width:14px;height:14px;border-radius:50%;flex-shrink:0}
.level-dot.green{background:#10b981}
.level-dot.blue{background:#3b82f6}
.level-dot.orange{background:#f59e0b}
.level-dot.red{background:#ef4444}
.level-name{font-size:15px;font-weight:700}
.level-dot.purple { background: #a855f7; }
.level-mini-fill.purple { background: #a855f7; }
.tag.purple { border-color: #d8b4fe; color: #7e22ce; }
.level-block:has(.level-dot.purple) { --level-color: rgba(168,85,247,.3); --level-bg: rgba(168,85,247,.06); }

/* Accordéon */
.level-header{display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--border);cursor:pointer;user-select:none}
.level-header:hover .level-name{color:var(--accent)}
.level-chevron{font-size:14px;color:var(--text3);margin-left:8px;transition:transform .25s;display:inline-block;line-height:1}
.level-header.open .level-chevron{transform:rotate(90deg)}
.level-body{overflow:hidden;max-height:0;transition:max-height .35s ease;padding:0 16px}
.level-body.open{max-height:2000px;padding:16px 16px 8px}

.level-body .lab-item{transform:scaleX(1);transition:transform .3s ease, border-color .2s, opacity .3s ease;transform-origin:center}
.level-body:not(.open) .lab-item{transform:scaleX(0);opacity:0}

/* Mini barre de progression par niveau */
.level-mini-progress{display:flex;align-items:center;gap:8px;margin-left:auto;transition:opacity .2s}
.level-header.open .level-mini-progress{opacity:0;pointer-events:none}
.level-mini-bar{width:72px;height:4px;background:var(--bg3);border-radius:2px;overflow:hidden}
.level-mini-fill{height:100%;border-radius:2px;transition:width .4s}
.level-mini-fill.green{background:#10b981}
.level-mini-fill.blue{background:#3b82f6}
.level-mini-fill.orange{background:#f59e0b}
.level-mini-fill.red{background:#ef4444}
.level-mini-text{font-size:11px;font-family:var(--mono);color:var(--text3);white-space:nowrap}

/* Fond coloré par niveau quand fermé */
.level-block:has(> .level-body:not(.open)) .level-header{border-radius:8px;padding:14px 20px}
.level-block:has(> .level-body.open) .level-header{border-radius:8px 8px 0 0;border-bottom:1px solid var(--level-color);padding:14px 20px}
.level-block:has(.level-dot.green) {--level-color:rgba(16,185,129,.3);--level-bg:rgba(16,185,129,.06)}
.level-block:has(.level-dot.blue)  {--level-color:rgba(59,130,246,.3);--level-bg:rgba(59,130,246,.06)}
.level-block:has(.level-dot.orange){--level-color:rgba(245,158,11,.3);--level-bg:rgba(245,158,11,.06)}
.level-block:has(.level-dot.red)   {--level-color:rgba(239,68,68,.3); --level-bg:rgba(239,68,68,.06)}

/* Items labs */
.lab-item{display:flex;align-items:center;gap:16px;background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:16px 20px;text-decoration:none;color:inherit;transition:border-color .2s;margin-bottom:8px}
.lab-item:hover{border-color:var(--accent)}
.lab-item.done{border-color:#10b981}
.lab-item.done .lab-num{color:var(--green)}
.lab-num{font-family:var(--mono);font-size:12px;color:var(--text3);min-width:32px}
.lab-info{flex:1}
.lab-title-text{font-size:14px;font-weight:600;margin-bottom:3px}
.lab-desc{font-size:12px;color:var(--text2);line-height:1.5}
.lab-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:7px}
.tag{font-size:10px;font-family:var(--mono);padding:2px 7px;border-radius:4px;background:var(--bg3);color:var(--text2);border:1px solid var(--border)}
.tag.green{border-color:#6ee7b7;color:#065f46}
.tag.blue{border-color:#93c5fd;color:#1e40af}
.tag.orange{border-color:#fcd34d;color:#92400e}
.tag.red{border-color:#fca5a5;color:#991b1b}
.lab-status{width:12px;height:12px;border-radius:50%;border:2px solid var(--text3);flex-shrink:0;transition:all .2s}
.lab-status.done{background:var(--green);border-color:var(--green)}

.lab-item.inprogress .lab-status::before {content: '⏳';}
.lab-item.inprogress {border-left: 3px solid var(--orange);}

/* Outils interactifs */
.tools-section{margin-top:48px;padding-top:32px;border-top:1px solid var(--border)}
.tools-grid{display:grid;grid-template-columns:repeat(2,minmax(0,320px));gap:12px;max-width:700px}
.tools-grid--3{grid-template-columns:repeat(3,minmax(0,280px));max-width:900px}
.tool-card{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:20px;text-decoration:none;color:inherit;transition:border-color .2s;display:block}
.tool-card:hover{border-color:var(--accent)}
.tool-icon{font-size:22px;margin-bottom:10px}
.tool-title{font-size:14px;font-weight:600;margin-bottom:6px}
.tool-desc{font-size:12px;color:var(--text2);line-height:1.5}

/* Update Labs */
.tag-updated {
  font-size: 10px;
  font-family: var(--mono);
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--bg3);
  color: #92400e;
  border: 1px solid var(--border);
  font-weight: 600;
}

.step-dot.opt.active { border-color: var(--orange); background: var(--orange); color: #fff; }
.step-dot.opt.done   { border-color: #92400e; background: #2d1a00; color: var(--orange); }
.step-dot.opt        { border-color: var(--orange); color: var(--orange); opacity: .6; }
.step-dot.opt:hover  { opacity: 1; }

.lab-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  transition: opacity .15s;
}
.lab-link:hover {
  opacity: .75;
}

.seo-text {
  max-width: 860px;
  margin: 0 auto;
  color: var(--text-secondary, #94a3b8);
  line-height: 1.8;
  font-size: 0.95rem;
}

.seo-text p {
  margin-bottom: 0.4rem;
}