: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}