:root{
  --bg:#f3f6fb;--card:#ffffff;--text:#162033;--muted:#667085;--line:#e5eaf2;
  --accent:#2b6ef3;--accent-soft:#eaf1ff;--good:#127c56;--warn:#a45c00;--danger:#b42318;
  --shadow:0 8px 28px rgba(21,34,58,.08);--radius:18px;
}
:root[data-theme="dark"]{--bg:#0b1220;--card:#111b2e;--text:#edf3ff;--muted:#9caac2;--line:#24324a;--accent:#6ea1ff;--accent-soft:#15284c;--shadow:none}
*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;padding-bottom:86px}
button,input,select{font:inherit}.topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.brand{display:flex;gap:10px;align-items:center;cursor:pointer}.brand .logo{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,#1d4ed8,#60a5fa);display:grid;place-items:center;color:white;font-weight:800}.brand strong{display:block;font-size:16px}.brand span{display:block;color:var(--muted);font-size:11px;margin-top:1px}.icon-btn{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:12px;width:40px;height:40px}
main{max-width:940px;margin:auto;padding:18px 16px 24px}.hero{padding:18px 0 6px}.eyebrow{color:var(--accent);font-weight:800;font-size:12px;text-transform:uppercase;letter-spacing:.08em}.hero h1{font-size:clamp(28px,6vw,46px);line-height:1.03;margin:8px 0 10px;letter-spacing:-.04em}.hero p{color:var(--muted);margin:0;max-width:720px;line-height:1.55}.search-wrap{margin:18px 0;position:relative}.search-wrap input{width:100%;padding:17px 48px 17px 18px;border-radius:16px;border:1px solid var(--line);background:var(--card);color:var(--text);box-shadow:var(--shadow);outline:none}.search-wrap input:focus{border-color:var(--accent)}.search-wrap span{position:absolute;right:17px;top:16px;color:var(--muted)}
.section-title{display:flex;align-items:end;justify-content:space-between;gap:12px;margin:24px 0 12px}.section-title h2{font-size:20px;margin:0}.section-title small{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.category-card,.mini-card,.concept-row,.calc-card,.quiz-card,.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.category-card{padding:16px;cursor:pointer}.category-card:hover,.concept-row:hover{transform:translateY(-1px)}.category-card .emoji{font-size:24px}.category-card h3{font-size:15px;margin:9px 0 5px}.category-card p{font-size:12px;color:var(--muted);margin:0}.pill{display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:11px;font-weight:700}.row-list{display:grid;gap:9px}.concept-row{padding:13px 14px;display:flex;justify-content:space-between;gap:12px;align-items:center;cursor:pointer}.concept-row h3{font-size:14px;margin:0 0 3px}.concept-row p{margin:0;color:var(--muted);font-size:12px;line-height:1.4}.chev{color:var(--muted)}.empty{text-align:center;padding:42px 16px;color:var(--muted)}
.filterbar{display:flex;gap:8px;overflow:auto;padding-bottom:5px}.filterbar button{white-space:nowrap;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:999px;padding:8px 11px;font-size:12px}.filterbar button.active{background:var(--accent);color:white;border-color:var(--accent)}
.detail-head{display:flex;justify-content:space-between;gap:16px;align-items:start}.detail-head h1{font-size:32px;margin:7px 0 8px;line-height:1.05}.fav-btn{border:1px solid var(--line);background:var(--card);border-radius:13px;min-width:44px;height:44px;color:var(--text);font-size:20px}.fav-btn.on{color:#eab308}.panel{padding:17px;margin:12px 0}.panel h2{font-size:15px;margin:0 0 8px}.panel p,.panel li{color:var(--text);line-height:1.55;font-size:14px}.panel .muted{color:var(--muted)}.formula{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;padding:12px;border-radius:12px;background:var(--accent-soft);overflow:auto}.related{display:flex;flex-wrap:wrap;gap:8px}.related button{border:0;background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:8px 10px;font-size:12px;font-weight:700}.back{border:0;background:none;color:var(--accent);padding:4px 0;font-weight:700}
.calc-grid{display:grid;gap:12px}.calc-card{padding:16px}.calc-card h3{margin:0 0 6px}.calc-card p{color:var(--muted);font-size:12px}.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.fields label{font-size:11px;color:var(--muted)}.fields input{width:100%;margin-top:4px;padding:11px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text)}.calc-card button,.primary{margin-top:10px;width:100%;border:0;border-radius:11px;padding:11px 12px;background:var(--accent);color:white;font-weight:800}.result{margin-top:10px;padding:11px;background:var(--accent-soft);border-radius:11px;font-weight:800}
.quiz-card{padding:18px}.quiz-card h2{margin-top:0}.answers{display:grid;gap:9px}.answers button{padding:12px;text-align:left;border:1px solid var(--line);background:var(--bg);color:var(--text);border-radius:11px}.answers button.good{border-color:var(--good);background:color-mix(in srgb,var(--good) 12%,var(--card))}.answers button.bad{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 10%,var(--card))}.score{text-align:center;font-size:42px;font-weight:900}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:30;display:grid;grid-template-columns:repeat(5,1fr);background:color-mix(in srgb,var(--card) 94%,transparent);border-top:1px solid var(--line);backdrop-filter:blur(18px);padding-bottom:max(6px,env(safe-area-inset-bottom))}.bottom-nav button{border:0;background:none;color:var(--muted);padding:8px 2px 6px;font-size:10px}.bottom-nav button span{display:block;font-size:20px;line-height:1.15}.bottom-nav button.active{color:var(--accent);font-weight:800}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.mini-card{padding:14px}.mini-card strong{font-size:22px;display:block}.mini-card span{color:var(--muted);font-size:11px}
@media(min-width:720px){.grid{grid-template-columns:repeat(4,1fr)}.calc-grid{grid-template-columns:repeat(2,1fr)}.bottom-nav{left:50%;transform:translateX(-50%);max-width:620px;border:1px solid var(--line);border-bottom:0;border-radius:20px 20px 0 0}.fields{grid-template-columns:repeat(3,1fr)}}

/* V1.1 — lecture pédagogique */
.level-block{display:flex;flex-direction:column;gap:10px;padding:14px 0 2px}.level-block>div:first-child{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.level-block small{color:var(--muted);font-size:11px}.level-switch{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:12px 0}.level-switch button{border:1px solid var(--line);background:var(--card);color:var(--muted);padding:9px 7px;border-radius:12px;font-size:11px;font-weight:700}.level-switch button span{display:block;font-size:18px;margin-bottom:3px}.level-switch button.active{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.beginner-panel{border-color:color-mix(in srgb,var(--accent) 28%,var(--line));background:linear-gradient(180deg,var(--accent-soft),var(--card) 60%)}.big-explain{font-size:16px!important;line-height:1.65!important}.why-panel{border-left:4px solid var(--accent)}.soft-panel{background:color-mix(in srgb,var(--card) 80%,var(--bg))}.advanced-panel{border-left:4px solid var(--warn)}
.onboarding{position:fixed;inset:0;z-index:100;background:rgba(8,15,29,.62);backdrop-filter:blur(8px);display:grid;place-items:center;padding:18px}.onboarding-card{width:min(650px,100%);max-height:calc(100vh - 36px);overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 24px 80px rgba(0,0,0,.25)}.onboarding-card h2{font-size:25px;margin:8px 0}.onboarding-card>p{color:var(--muted);line-height:1.55}.onboarding-levels{display:grid;gap:10px;margin-top:16px}.onboarding-levels button{text-align:left;display:grid;grid-template-columns:42px 1fr;column-gap:10px;align-items:center;border:1px solid var(--line);background:var(--bg);color:var(--text);padding:13px;border-radius:15px}.onboarding-levels button>span{font-size:25px;grid-row:1/3}.onboarding-levels button strong{font-size:14px}.onboarding-levels button small{color:var(--muted);font-size:11px;margin-top:2px}.onboarding-levels button:hover{border-color:var(--accent);background:var(--accent-soft)}
@media(max-width:480px){.level-switch button{font-size:10px;padding:8px 4px}.level-block>div:first-child{display:block}.level-block small{display:block;margin-top:3px}.onboarding-card{padding:18px}.onboarding-card h2{font-size:22px}}

.level-banner{display:flex;gap:.55rem;align-items:flex-start;flex-direction:column;margin:.65rem 0 1rem;padding:.85rem 1rem;border:1px solid var(--line);border-radius:16px;background:var(--card)}
.level-banner strong{font-size:.98rem}
.level-banner span{font-size:.86rem;color:var(--muted);line-height:1.35}
.next-level{width:100%;margin:.15rem 0 1rem}
button.secondary{border:1px solid var(--line);background:var(--card);color:var(--text);padding:.85rem 1rem;border-radius:14px;font-weight:700}

.current-level{margin-top:.35rem;font-size:.82rem;font-weight:800;color:var(--muted)}

.row-level{display:inline-block;margin:.15rem 0 .25rem;font-weight:800;color:var(--muted)}

/* FinPilot V2 */
.hero.compact{padding-bottom:10px}.hero.compact h1{font-size:clamp(27px,5vw,38px)}
.v2-launch{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:16px 0}
.v2-launch button{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:16px;padding:13px 9px;text-align:left;box-shadow:var(--shadow)}
.v2-launch button span{font-size:22px;display:block;margin-bottom:7px}.v2-launch button strong{display:block;font-size:12px}.v2-launch button small{display:block;color:var(--muted);font-size:10px;line-height:1.3;margin-top:4px}
.quick-actions{display:flex;gap:8px;overflow:auto;margin:10px 0}.quick-actions button,.flagship-list button,.prompt-chips button,.path-concepts button{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:999px;padding:9px 12px;white-space:nowrap}
.flagship-list{display:flex;gap:8px;overflow:auto;padding-bottom:4px}
.flagship{border:1px solid var(--line);background:linear-gradient(180deg,var(--card),color-mix(in srgb,var(--card) 86%,var(--accent-soft)));border-radius:var(--radius);padding:16px;margin:12px 0;box-shadow:var(--shadow)}
.flagship-title{font-weight:900;font-size:14px;margin-bottom:10px}.flagship-grid{display:grid;gap:10px}
.flagship-grid>div{padding:11px 12px;border-radius:13px;background:color-mix(in srgb,var(--bg) 74%,transparent);border:1px solid var(--line)}
.flagship-grid strong{font-size:12px}.flagship-grid p{margin:5px 0 0;font-size:13px;line-height:1.5;color:var(--muted)}
.news-tabs{margin:8px 0 14px}.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:15px;margin:10px 0;box-shadow:var(--shadow)}
.news-meta{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.news-card h3{font-size:15px;line-height:1.35;margin:7px 0 12px}
.news-actions{display:flex;justify-content:space-between;align-items:center;gap:8px}.news-actions a{color:var(--accent);font-size:12px;font-weight:700;text-decoration:none}.news-actions button{border:1px solid var(--line);background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:7px 9px;font-size:11px;font-weight:800}
.source-note{font-size:10px;color:var(--muted);line-height:1.45}.loading{text-align:center;color:var(--muted);padding:24px}
.assistant-box{display:grid;gap:9px;margin:14px 0}.assistant-box textarea{width:100%;resize:vertical;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:16px;padding:14px;font:inherit;line-height:1.45;outline:none}.assistant-box textarea:focus{border-color:var(--accent)}
.ai-answer small{color:var(--muted);font-size:10px}.prompt-chips{display:flex;gap:8px;overflow:auto;padding-bottom:5px}
.learning-paths{display:grid;gap:12px}.path-card,.flash-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:15px;box-shadow:var(--shadow)}
.path-head{display:flex;gap:11px;align-items:flex-start}.path-head>span{font-size:25px}.path-head h3{margin:0 0 4px}.path-head p{margin:0;color:var(--muted);font-size:12px;line-height:1.4}
.progress{height:7px;background:var(--line);border-radius:999px;overflow:hidden;margin:12px 0 5px}.progress span{display:block;height:100%;background:var(--accent);border-radius:999px}
.path-card>small{color:var(--muted);font-size:10px}.path-concepts{display:flex;gap:6px;overflow:auto;margin-top:10px;padding-bottom:3px}.path-concepts button{font-size:10px}.path-concepts button.done{background:var(--accent-soft);color:var(--accent)}
.flash-card h2{font-size:26px;margin:14px 0}.flash-card p{font-size:15px;line-height:1.6}.flash-card>button,.flash-actions button{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:12px;padding:10px 12px;font-weight:700}.flash-actions{display:flex;gap:8px;margin-top:10px}
@media(max-width:520px){.v2-launch{grid-template-columns:1fr}.v2-launch button{display:grid;grid-template-columns:34px 1fr;column-gap:8px}.v2-launch button span{grid-row:1/3}.v2-launch button small{grid-column:2}.news-actions{align-items:flex-start;flex-direction:column}.stats{gap:6px}.mini-card{padding:10px}.mini-card strong{font-size:18px}}

/* V2.1 — bilingue, assistant et actualité internationale */
.english-term{display:block;color:var(--accent);font-size:10px;font-weight:800;margin:2px 0 3px}
.detail-english{color:var(--accent);font-weight:800;font-size:13px;margin:-2px 0 6px}
.assistant-examples{margin:4px 0 14px}.assistant-examples>strong{display:block;font-size:12px;margin-bottom:8px;color:var(--muted)}
.markdown{line-height:1.62}.markdown p{margin:0 0 12px}.markdown h3{font-size:16px;margin:18px 0 8px}.markdown ul,.markdown ol{margin:8px 0 14px;padding-left:22px}.markdown li{margin:5px 0}.markdown hr{border:0;border-top:1px solid var(--line);margin:16px 0}.markdown code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;background:var(--accent-soft);padding:1px 5px;border-radius:5px}
.deepen-ai{margin:8px 0 13px}.deep-answer{border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
.news-why{margin:0 0 11px;color:var(--muted);font-size:12px;line-height:1.5}
.original-title{margin:0 0 12px;color:var(--muted);font-size:11px}.original-title summary{cursor:pointer;font-weight:700}.original-title p{margin:5px 0 0;font-size:11px;line-height:1.4}
.news-meta{line-height:1.4}

#refreshNews:disabled,.news-tabs button:disabled{opacity:.6;cursor:wait}

/* V2.2 — calculateurs pédagogiques + optimisation iPhone */
*{box-sizing:border-box}
html,body{max-width:100%;overflow-x:hidden}
body{-webkit-text-size-adjust:100%}
img,svg,video,canvas{max-width:100%;height:auto}
button,input,textarea,select{font:inherit}
main{min-width:0;padding-bottom:calc(88px + env(safe-area-inset-bottom))}
.topbar{
  padding-top:max(10px,env(safe-area-inset-top));
  padding-left:max(12px,env(safe-area-inset-left));
  padding-right:max(12px,env(safe-area-inset-right));
}
.bottom-nav{
  padding-left:max(0px,env(safe-area-inset-left));
  padding-right:max(0px,env(safe-area-inset-right));
}
.bottom-nav button{min-width:0;min-height:48px}
.brand,.brand>div:last-child,.detail-head>div,.concept-row>div,.path-head>div,.news-card,.calc-card{min-width:0}
.brand span,.concept-row p,.panel p,.news-card h3,.news-why,.detail-english,.calc-desc{overflow-wrap:anywhere}
.search-wrap input,.assistant-box textarea,.fields input{font-size:16px;min-width:0;max-width:100%}

.tools-hero{padding-bottom:4px}
.calc-filter{display:flex;gap:8px;overflow-x:auto;overscroll-behavior-inline:contain;padding:6px 0 8px;scrollbar-width:none}
.calc-filter::-webkit-scrollbar{display:none}
.calc-filter button{flex:0 0 auto;min-height:40px;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:999px;padding:8px 12px;font-size:12px;font-weight:700}
.calc-filter button.active{background:var(--accent);color:white;border-color:var(--accent)}
.tools-count{margin-top:14px}
.calc-grid{display:grid;grid-template-columns:1fr;gap:14px}
.calc-card{padding:16px;overflow:hidden}
.calc-head{display:flex;align-items:center;gap:10px;margin-bottom:5px}
.calc-icon{flex:0 0 38px;width:38px;height:38px;border-radius:11px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-weight:900;font-size:15px}
.calc-category{display:block;color:var(--accent);font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.05em}
.calc-card h3{font-size:17px;margin:2px 0 0}
.calc-desc{color:var(--muted)!important;font-size:12px!important;line-height:1.45;margin:8px 0 10px!important}
.calc-learn{border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--card) 84%,var(--bg));margin:10px 0 12px}
.calc-learn summary{cursor:pointer;padding:10px 12px;font-size:12px;font-weight:800;color:var(--accent)}
.calc-learn>div{padding:0 12px 12px}
.calc-learn strong{font-size:11px}
.calc-learn p{font-size:12px!important;color:var(--muted)!important;margin:4px 0 9px!important;line-height:1.45!important}
.calc-formula{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;line-height:1.45;background:var(--accent-soft);padding:9px;border-radius:9px;overflow-wrap:anywhere}
.calc-card .fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
.calc-card .fields label{min-width:0;font-size:11px;color:var(--muted)}
.calc-card .fields input{display:block;width:100%;margin-top:5px;padding:11px 10px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text)}
.calc-card [data-calcbtn]{min-height:44px}
.calc-output{margin-top:12px;display:grid;gap:8px}
.calc-main-result,.calc-reading,.calc-caution,.calc-error{border-radius:12px;padding:11px 12px}
.calc-main-result{background:var(--accent-soft)}
.calc-main-result small{display:block;color:var(--muted);font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.calc-main-result strong{display:block;color:var(--accent);font-size:22px;line-height:1.15;margin-top:3px;overflow-wrap:anywhere}
.calc-main-result span{display:block;color:var(--muted);font-size:11px;line-height:1.4;margin-top:6px}
.calc-reading{border:1px solid var(--line);background:var(--card)}
.calc-caution{border-left:3px solid var(--warn);background:color-mix(in srgb,var(--card) 84%,var(--bg))}
.calc-reading strong,.calc-caution strong{font-size:11px}
.calc-reading p,.calc-caution p{font-size:12px!important;line-height:1.45!important;margin:4px 0 0!important}
.calc-error{background:color-mix(in srgb,var(--danger) 10%,var(--card));color:var(--danger);font-size:12px;font-weight:700}

/* iPhone / petits écrans : pleine largeur utile, aucun débordement */
@media(max-width:600px){
  .topbar{
    padding-bottom:9px;
    gap:8px;
  }
  .brand{gap:8px;min-width:0}
  .brand .logo{width:36px;height:36px;border-radius:10px;flex:0 0 36px}
  .brand strong{font-size:15px}
  .brand span{font-size:9.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:220px}
  .icon-btn{width:38px;height:38px;flex:0 0 38px}
  main{
    width:100%;
    max-width:none;
    margin:0;
    padding-top:12px;
    padding-left:max(10px,env(safe-area-inset-left));
    padding-right:max(10px,env(safe-area-inset-right));
    padding-bottom:calc(82px + env(safe-area-inset-bottom));
  }
  .hero{padding-top:10px}
  .hero h1{font-size:clamp(27px,9vw,38px);letter-spacing:-.035em}
  .hero p{font-size:13px;line-height:1.45}
  .section-title{margin-top:18px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .category-card{padding:12px}
  .category-card h3{font-size:13px}
  .category-card p{font-size:10px}
  .concept-row{padding:12px}
  .concept-row h3{font-size:14px}
  .concept-row p{font-size:11px}
  .detail-head h1{font-size:29px}
  .panel{padding:14px}
  .level-switch{gap:5px}
  .level-switch button{min-width:0;padding:8px 3px;font-size:9.5px;overflow-wrap:anywhere}
  .level-switch button span{font-size:17px}
  .filterbar{margin-left:0;margin-right:0}
  .news-card{padding:13px}
  .news-actions{gap:8px}
  .news-actions a,.news-actions button{min-height:42px;display:flex;align-items:center}
  .assistant-box textarea{width:100%;max-width:100%}
  .v2-launch{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .mini-card{min-width:0;padding:9px 6px}
  .mini-card strong{font-size:17px}
  .mini-card span{font-size:9px;overflow-wrap:anywhere}
  .calc-filter{margin-right:-2px}
  .calc-card{padding:13px}
  .calc-card .fields{grid-template-columns:1fr}
  .calc-card .fields input{min-height:44px;padding:11px}
  .calc-main-result strong{font-size:21px}
  .bottom-nav{
    left:0!important;
    right:0!important;
    transform:none!important;
    max-width:none!important;
    border-left:0!important;
    border-right:0!important;
    border-bottom:0!important;
    border-radius:0!important;
    grid-template-columns:repeat(5,minmax(0,1fr));
    padding-bottom:max(5px,env(safe-area-inset-bottom));
  }
  .bottom-nav button{
    min-width:0;
    padding:7px 1px 5px;
    font-size:9px;
    line-height:1.1;
    overflow:hidden;
  }
  .bottom-nav button span{font-size:18px}
  .onboarding{padding:max(12px,env(safe-area-inset-top)) max(10px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left))}
  .onboarding-card{width:100%;max-height:calc(100svh - 24px);border-radius:18px}
}
@media(max-width:350px){
  main{padding-left:max(8px,env(safe-area-inset-left));padding-right:max(8px,env(safe-area-inset-right))}
  .brand span{max-width:170px}
  .grid{grid-template-columns:1fr 1fr}
  .bottom-nav button{font-size:8px}
  .level-switch button{font-size:9px}
}
@media(orientation:landscape) and (max-height:500px){
  main{padding-top:8px}
  .topbar{padding-top:max(6px,env(safe-area-inset-top));padding-bottom:6px}
  .bottom-nav button{min-height:42px;padding-top:4px}
  .bottom-nav button span{font-size:16px}
}

@media(min-width:760px){
  .calc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .calc-card .fields{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* V2.2.1 — navigation clarifiée + installation iPhone */
.home-secondary{display:flex;gap:8px;margin:10px 0 4px}
.home-secondary button{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:999px;padding:9px 13px;font-weight:700}
.learning-actions{display:grid;gap:8px;margin-top:14px}
.learning-actions .secondary{width:100%;min-height:44px}

.install-card{
  display:grid;
  grid-template-columns:48px minmax(0,1fr);
  gap:12px;
  align-items:start;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:13px;
  margin:14px 0 4px;
}
.install-icon{
  width:48px;height:48px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(145deg,#1d4ed8,#60a5fa);
  color:white;font-weight:900;font-size:18px;
}
.install-card strong{display:block;font-size:13px;margin:1px 0 4px}
.install-card p{margin:0;color:var(--muted);font-size:11px;line-height:1.5}
.install-card b{color:var(--text)}

@media(max-width:600px){
  .home-secondary button{min-height:44px}
  .install-card{grid-template-columns:44px minmax(0,1fr);padding:11px;gap:10px}
  .install-icon{width:44px;height:44px;border-radius:12px}
}

/* V2.2.2 — accueil épuré + retours contextuels */
.home-hero{padding-bottom:2px}
.home-hero h1{max-width:760px}
.home-search{margin-top:16px;margin-bottom:12px}
.compact-level{padding-top:8px}
.home-links{display:flex;justify-content:flex-end;margin:4px 0 2px}
.home-links button{
  border:0;background:none;color:var(--accent);padding:7px 2px;
  font-weight:800;font-size:12px;
}
.home-links button span{
  display:inline-grid;place-items:center;min-width:20px;height:20px;
  margin-left:4px;padding:0 5px;border-radius:999px;
  background:var(--accent-soft);font-size:10px;
}

.secondary-nav{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-width:0;margin:2px 0 8px;
}
.secondary-nav .back{
  flex:0 0 auto;min-height:40px;padding:8px 4px;
  border:0;background:none;color:var(--accent);font-weight:800;
}
.secondary-nav>span{
  min-width:0;color:var(--muted);font-size:11px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:right;
}
.secondary-title{margin-top:10px}
.secondary-intro{
  color:var(--muted);font-size:12px;line-height:1.5;margin:-4px 0 14px;
}
.quiz-exit{width:100%;margin-top:8px;min-height:44px}

@media(max-width:600px){
  .home-hero h1{font-size:clamp(28px,8.8vw,37px)}
  .home-hero p{max-width:96%}
  .secondary-nav{position:relative;margin-top:0}
  .secondary-nav .back{min-height:44px}
  .secondary-nav>span{font-size:10px;max-width:62%}
  .home-links{justify-content:flex-start}
}

/* V2.2.3 — hiérarchie d'accueil + liant transversal par notion */
.home-hero h1{
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.06;
  letter-spacing:-.035em;
}
.home-hero h1 span{display:block}
.compact-level{
  align-items:center;
  padding:10px 0 6px;
}
.compact-level>div:first-child strong{
  font-size:13px;
  letter-spacing:.01em;
}
.compact-level>div:first-child small{display:none}

.essentials-home{margin-top:12px}
.essentials-home .section-title{align-items:flex-end}
.essentials-home .section-title h2{margin-bottom:3px}
.essentials-home .section-title p{
  margin:0;color:var(--muted);font-size:11px;line-height:1.4;
}
.essentials-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;
}
.essentials-grid button{
  min-width:0;min-height:44px;padding:10px 8px;
  border:1px solid var(--line);border-radius:12px;
  background:var(--card);color:var(--text);font-weight:800;
  white-space:normal;overflow-wrap:anywhere;text-align:center;
}
.essentials-toggle{
  width:100%;min-height:42px;margin-top:8px;
  border:0;background:none;color:var(--accent);font-weight:800;
}

/* La notion devient le fil conducteur entre les cinq espaces. */
.transversal{
  margin:18px 0;padding:15px;border:1px solid var(--line);
  border-radius:18px;background:linear-gradient(180deg,var(--card),var(--soft));
}
.transversal-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:12px;margin-bottom:11px;
}
.transversal-head h2{margin:3px 0 0;font-size:18px}
.transversal-hint{color:var(--muted);font-size:10px;white-space:nowrap}
.transversal-grid{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;
}
.transversal-card{
  min-width:0;min-height:96px;padding:10px 7px;
  border:1px solid var(--line);border-radius:13px;
  background:var(--bg);color:var(--text);text-align:left;
  display:flex;flex-direction:column;gap:4px;justify-content:flex-start;
}
.transversal-card>span{font-size:18px}
.transversal-card strong{font-size:11px}
.transversal-card small{
  color:var(--muted);font-size:9px;line-height:1.35;
  overflow-wrap:anywhere;
}
.transversal-card:not(:disabled):hover{border-color:var(--accent)}
.transversal-card.current{border-color:var(--accent);background:var(--accent-soft)}
.transversal-card.muted{opacity:.55}

.context-strip{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin:0 0 12px;padding:11px 13px;
  border:1px solid var(--line);border-radius:14px;background:var(--soft);
}
.context-strip>div{
  min-width:0;display:grid;grid-template-columns:auto 1fr;column-gap:8px;row-gap:2px;
  align-items:baseline;
}
.context-strip span{
  color:var(--muted);font-size:9px;text-transform:uppercase;font-weight:900;
  letter-spacing:.08em;
}
.context-strip strong{font-size:13px}
.context-strip small{
  grid-column:1/-1;color:var(--muted);font-size:10px;line-height:1.35;
}
.context-strip button{
  flex:0 0 auto;border:0;background:none;color:var(--accent);
  font-weight:800;font-size:10px;padding:7px;
}

.learning-focus{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  margin:0 0 14px;padding:14px;border:1px solid var(--line);
  border-radius:16px;background:var(--soft);
}
.learning-focus h2{margin:3px 0 4px}
.learning-focus p{margin:0;color:var(--muted);font-size:11px}
.learning-focus>div:last-child{display:flex;gap:7px;flex:0 0 auto}
.learning-focus button{min-height:40px}

.calc-card.calc-focused{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.calc-concept-link{
  width:100%;min-height:38px;margin-top:8px;
  border:0!important;background:transparent!important;color:var(--accent)!important;
  font-size:10px!important;font-weight:800!important;
}

@media(max-width:760px){
  .home-hero h1{
    font-size:clamp(25px,7.2vw,33px);
    line-height:1.08;
  }
  .essentials-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .transversal-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .transversal-card{min-height:88px}
  .transversal-card.current{grid-column:1/-1;min-height:64px}
  .transversal-head{align-items:flex-start}
  .transversal-hint{display:none}
  .context-strip{align-items:flex-start}
  .context-strip>div{display:block}
  .context-strip span,.context-strip strong,.context-strip small{display:block}
  .context-strip strong{margin:2px 0}
  .learning-focus{display:block}
  .learning-focus>div:last-child{margin-top:10px}
}
@media(max-width:360px){
  .home-hero h1{font-size:24px}
  .level-switch button{font-size:10px}
}

/* V2.2.4 — Accueil aiguilleur + correction iPhone Apprendre */
.home-start{
  margin:14px 0 10px;padding:14px;
  border:1px solid var(--line);border-radius:18px;background:var(--card);
}
.home-start-title>span{
  color:var(--accent);font-size:9px;text-transform:uppercase;
  letter-spacing:.09em;font-weight:900;
}
.home-start-title h2{margin:3px 0 3px;font-size:19px}
.home-start-title p{margin:0;color:var(--muted);font-size:11px;line-height:1.45}
.home-start .home-search{margin:11px 0 8px}
.start-examples{display:flex;flex-wrap:wrap;gap:6px}
.start-examples button{
  min-height:36px;padding:7px 9px;border:1px solid var(--line);
  border-radius:999px;background:var(--soft);color:var(--text);
  font-size:10px;font-weight:700;text-align:left;
}
.search-guidance{margin-top:10px}
.assistant-route{
  width:100%;display:grid;grid-template-columns:auto 1fr auto;
  align-items:center;gap:10px;margin-top:12px;padding:12px;
  border:1px solid var(--line);border-radius:14px;
  background:var(--card);color:var(--text);text-align:left;
}
.assistant-route>span{font-size:20px}
.assistant-route>div{min-width:0}
.assistant-route strong,.assistant-route small{display:block}
.assistant-route small{color:var(--muted);font-size:10px;line-height:1.4;margin-top:2px}
.assistant-route>b{color:var(--accent);font-size:20px}
.assistant-route.recommended{
  border-color:var(--accent);background:var(--accent-soft);
}

/* Apprendre : aucun composant ne doit pouvoir élargir la page */
.learning-paths,.path-card,.flash-card,.learning-focus,.stats,.learning-actions,
.path-head,.path-head>div,.path-concepts,.flash-actions{
  min-width:0;max-width:100%;box-sizing:border-box;
}
.learning-paths{width:100%;overflow:hidden}
.path-card,.flash-card,.learning-focus{width:100%;overflow:hidden}
.path-head>div{flex:1 1 auto}
.path-head h3,.path-head p,.path-card>small,.flash-card p{
  overflow-wrap:anywhere;word-break:normal;
}
.stats{grid-template-columns:repeat(3,minmax(0,1fr));width:100%}
.mini-card{min-width:0;overflow:hidden}
.mini-card span{display:block;overflow-wrap:anywhere}
.learning-actions{width:100%}
.learning-actions button{max-width:100%;white-space:normal}
.path-concepts{
  width:100%;overflow-x:auto;overscroll-behavior-x:contain;
  -webkit-overflow-scrolling:touch;
}
.path-concepts button{flex:0 0 auto;max-width:88%;white-space:normal}
.flash-actions{flex-wrap:wrap}
.flash-actions button{min-width:0;flex:1 1 120px}

@media(max-width:520px){
  .home-start{padding:12px}
  .start-examples{display:grid;grid-template-columns:1fr 1fr}
  .start-examples button:last-child{grid-column:1/-1}
  .stats{gap:5px}
  .mini-card{padding:9px 6px}
  .mini-card strong{font-size:17px}
  .mini-card span{font-size:9px;line-height:1.25}
  .learning-focus>div:last-child{display:grid;grid-template-columns:1fr 1fr;width:100%}
  .learning-focus button{width:100%;min-width:0;white-space:normal}
  .path-card,.flash-card{padding:13px}
  .path-concepts{display:flex;max-width:100%}
  .learning-actions{display:grid;grid-template-columns:1fr}
}
@media(max-width:360px){
  .stats{grid-template-columns:1fr}
  .mini-card{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:8px}
  .mini-card strong{margin:0}
}

/* V2.2.5 — recherche sémantique locale et résultats compacts */
.home-match-list{
  display:grid;gap:7px;margin:8px 0 5px;
}
.home-match{
  width:100%;display:grid;grid-template-columns:1fr auto;align-items:center;
  gap:10px;padding:10px 12px;border:1px solid var(--line);
  border-radius:13px;background:var(--card);color:var(--text);text-align:left;
}
.home-match>div{min-width:0}
.home-match span,.home-match strong,.home-match small{display:block}
.home-match span{
  color:var(--accent);font-size:8px;font-weight:900;
  text-transform:uppercase;letter-spacing:.07em;margin-bottom:2px;
}
.home-match strong{font-size:14px}
.home-match small{
  color:var(--muted);font-size:10px;line-height:1.3;margin-top:2px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.home-match>b{color:var(--accent);font-size:19px}
.home-match.best{border-color:color-mix(in srgb,var(--accent) 55%,var(--line));background:var(--accent-soft)}
.no-direct-match{
  padding:9px 4px;color:var(--muted);font-size:11px;text-align:left;
}
.search-guidance{margin:6px 0 10px}
.assistant-route{
  min-height:0;margin-top:7px;padding:9px 11px;border-radius:12px;
}
.assistant-route>span{font-size:17px}
.assistant-route strong{font-size:12px}
.assistant-route small{font-size:9px;line-height:1.3}
.assistant-route>b{font-size:17px}

/* Le message générique ne doit plus créer un grand vide sur l'accueil. */
.search-guidance .empty{padding:10px 4px;text-align:left}

/* Titre réellement plus discret sur iPhone. */
@media(max-width:600px){
  .home-hero h1{
    font-size:clamp(22px,6vw,27px);
    line-height:1.08;
    letter-spacing:-.03em;
  }
  .home-hero{padding-top:10px}
  .home-hero p{font-size:13px;line-height:1.45}
  .home-start{margin-top:10px;padding:11px}
  .home-start-title h2{font-size:18px}
  .home-start-title p{font-size:10px}
  .home-start .home-search{margin:9px 0 7px}
  .home-start .search-wrap input{padding:14px 42px 14px 14px}
}
@media(max-width:360px){
  .home-hero h1{font-size:21px}
}