/* ===== Mon Espace Cours — style Natif (même interface que Mon Espace d'Études) ===== */
:root{--sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,"Helvetica Neue",system-ui,sans-serif;
 --bg:#F2F2F7;--card:#FFFFFF;--fill:rgba(118,118,128,.12);--track:#E5E5EA;--ink:#000;--muted:#8E8E93;--sub:#6D6D72;--faint:#C7C7CC;
 --line:#C6C6C8;--accent:#007AFF;--accent-soft:rgba(0,122,255,.12);--ok:#34C759;--warn:#FF9500;--bad:#FF3B30;
 --ok-soft:rgba(52,199,89,.14);--warn-soft:rgba(255,149,0,.16);--bad-soft:rgba(255,59,48,.12);--bar:rgba(249,249,249,.94);
 --pop:0 10px 36px rgba(0,0,0,.16),0 0 0 .5px rgba(0,0,0,.06);color-scheme:light}
:root[data-theme=dark]{--bg:#000;--card:#1C1C1E;--fill:rgba(118,118,128,.24);--track:#38383A;--ink:#fff;--muted:#8E8E93;--sub:#8E8E93;
 --faint:#48484A;--line:#38383A;--accent:#0A84FF;--accent-soft:rgba(10,132,255,.2);--ok:#30D158;--warn:#FF9F0A;--bad:#FF453A;
 --ok-soft:rgba(48,209,88,.18);--warn-soft:rgba(255,159,10,.18);--bad-soft:rgba(255,69,58,.18);--bar:rgba(22,22,23,.92);
 --pop:0 10px 36px rgba(0,0,0,.6),0 0 0 .5px rgba(255,255,255,.1);color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;touch-action:manipulation;overflow-x:clip}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;overflow-x:clip}
body{-webkit-tap-highlight-color:transparent}
a{color:var(--accent);text-decoration:none}
button{font:inherit;color:inherit}
img{max-width:100%}
.muted{color:var(--muted)}.small{font-size:14px}.mono{font-family:ui-monospace,Menlo,Consolas,monospace}
[hidden]{display:none!important}
/* ---------- mise en page ---------- */
.app{min-height:100dvh}
main{max-width:760px;margin:0 auto;padding:calc(14px + env(safe-area-inset-top)) 16px calc(110px + env(safe-area-inset-bottom))}
.side{display:none}
.tabs{position:fixed;left:0;right:0;bottom:0;z-index:40;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
 background:var(--bar);border-top:.5px solid rgba(0,0,0,.2);backdrop-filter:saturate(1.8) blur(20px);-webkit-backdrop-filter:saturate(1.8) blur(20px);
 padding:7px 0 calc(4px + env(safe-area-inset-bottom))}
:root[data-theme=dark] .tabs{border-top-color:rgba(255,255,255,.15)}
.tabs a{position:relative;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:10px;font-weight:500;color:#999;padding:2px 0}
.tabs a.on{color:var(--accent)}
.tabs a .bd{position:absolute;top:-2px;left:calc(50% + 6px)}
@media(min-width:861px){
 .app{display:grid;grid-template-columns:260px minmax(0,1fr)}
 .tabs{display:none}
 .side{display:flex;flex-direction:column;gap:2px;position:sticky;top:0;height:100dvh;overflow-y:auto;padding:18px 12px;border-right:.5px solid var(--line);background:var(--bg)}
 .side .brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:17px;padding:4px 8px 16px}
 .side a.nv{display:flex;align-items:center;gap:12px;padding:9px 12px;border-radius:8px;color:var(--ink);font-size:15px;position:relative}
 .side a.nv.on{background:var(--accent);color:#fff}
 .side a.nv .bd{margin-left:auto}
 .side .who{margin-top:auto;padding:12px 8px 4px;font-size:13px;color:var(--muted)}
 main{padding:28px 32px 60px}
}
.logo{width:28px;height:28px;border-radius:7px;flex:none;background:#163a2e url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath d='M150 360l40-10 170-170-30-30-170 170z' fill='none' stroke='%23fff' stroke-width='30' stroke-linejoin='round'/%3E%3Cpath d='M300 150l30 30' stroke='%2367d39a' stroke-width='30' stroke-linecap='round'/%3E%3Cpath d='M150 400h212' stroke='%2367d39a' stroke-width='26' stroke-linecap='round'/%3E%3C/svg%3E") center/100% no-repeat}
/* ---------- titres ---------- */
.phead{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:0 0 14px}
.phead h1{font-size:34px;font-weight:700;letter-spacing:.01em;line-height:1.12;margin:0}
.phead .kick{font-size:15px;color:var(--muted);margin:2px 0 0}
.back{display:inline-flex;align-items:center;gap:2px;font-size:17px;color:var(--accent);margin:0 0 6px -6px;padding:4px 6px}
.sh{margin:26px 16px 7px;font-size:13px;color:var(--sub);text-transform:uppercase;letter-spacing:.02em;display:flex;justify-content:space-between;align-items:baseline}
.sh a,.sh button{font-size:15px;text-transform:none;letter-spacing:0;background:none;border:0;color:var(--accent);padding:0;cursor:pointer}
.foot{margin:7px 16px 0;font-size:13px;color:var(--muted);line-height:1.35}
/* ---------- listes groupées ---------- */
.grp{background:var(--card);border-radius:12px;overflow:hidden}
.row{display:flex;align-items:center;gap:12px;width:100%;min-height:44px;padding:11px 16px;background:none;border:0;text-align:left;color:var(--ink);position:relative;cursor:pointer}
.row+.row::before{content:"";position:absolute;top:0;left:var(--in,16px);right:0;border-top:.5px solid var(--line)}
.row.st{cursor:default}
.row .g{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.row .g b{font-weight:400;font-size:17px;overflow-wrap:anywhere}
.row .g small{font-size:14px;color:var(--muted);overflow-wrap:anywhere}
.row .rt{font-size:15px;color:var(--muted);flex:none;text-align:right}
.row .rt.acc{color:var(--accent)}
.row svg.chev{flex:none;color:var(--faint)}
.row.danger b{color:var(--bad)}
.row.acc b{color:var(--accent)}
.row input[type=checkbox],.row input[type=radio]{width:22px;height:22px;accent-color:var(--accent);flex:none;margin:0}
.ic{width:30px;height:30px;border-radius:7px;display:grid;place-items:center;flex:none;color:#fff;background:var(--accent)}
.av{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;flex:none;background:#9EA3AD;color:#fff;font-weight:500;font-size:15px}
.av.big{width:84px;height:84px;font-size:32px}
.bd{min-width:19px;height:19px;padding:0 6px;border-radius:10px;background:var(--bad);color:#fff;font-size:12px;font-weight:600;display:inline-grid;place-items:center;line-height:1}
.chip{display:inline-block;font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--fill);color:var(--sub);white-space:nowrap}
.chip.ok{background:var(--ok-soft);color:var(--ok)}.chip.warn{background:var(--warn-soft);color:#C77700}.chip.bad{background:var(--bad-soft);color:var(--bad)}.chip.acc{background:var(--accent-soft);color:var(--accent)}
:root[data-theme=dark] .chip.warn{color:var(--warn)}
.empty{text-align:center;color:var(--muted);padding:26px 16px;font-size:15px}
.card{background:var(--card);border-radius:12px;padding:14px 16px}
.card+.card{margin-top:12px}
/* ---------- boutons et champs ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;border-radius:10px;padding:9px 16px;font-size:16px;font-weight:600;background:var(--fill);color:var(--accent);cursor:pointer;min-height:40px}
.btn.primary{background:var(--accent);color:#fff}
.btn.danger{color:var(--bad)}
.btn.sm{font-size:14px;padding:6px 12px;min-height:32px}
.btn.block{display:flex;width:100%;min-height:50px;font-size:17px}
.btn:disabled{opacity:.5}
.btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.field{display:block;margin:0 0 12px}
.field>span{display:block;font-size:13px;color:var(--sub);margin:0 0 5px 4px}
input:not([type=checkbox]):not([type=radio]),select,textarea{width:100%;font:inherit;font-size:17px;color:var(--ink);background:var(--fill);border:0;border-radius:10px;padding:10px 12px;outline:0}
textarea{resize:vertical;min-height:90px;line-height:1.4}
input:focus,select:focus,textarea:focus{box-shadow:0 0 0 3px var(--accent-soft)}
.grp input:not([type=checkbox]):not([type=radio]),.grp select,.grp textarea{background:transparent;border-radius:0;padding:0}
.check{display:flex;gap:10px;align-items:flex-start;margin:10px 0;font-size:15px;line-height:1.35;cursor:pointer}
.check input{width:22px;height:22px;flex:none;margin:0;accent-color:var(--accent)}
.err{color:var(--bad);font-size:14px;min-height:18px;margin:6px 4px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
/* contrôle segmenté */
.seg{display:flex;background:var(--fill);border-radius:9px;padding:2px;margin:0 0 14px;overflow-x:auto;scrollbar-width:none}
.seg button{flex:1;border:0;background:none;border-radius:7px;font-size:13px;font-weight:500;padding:6px 10px;cursor:pointer;white-space:nowrap;color:var(--ink)}
.seg button.on{background:var(--card);font-weight:600;box-shadow:0 3px 8px rgba(0,0,0,.12),0 3px 1px rgba(0,0,0,.04)}
:root[data-theme=dark] .seg button.on{background:#636366}
/* tuiles de chiffres */
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.tile{background:var(--card);border-radius:12px;padding:12px 14px}
.tile small{display:block;font-size:13px;color:var(--muted);font-weight:500}
.tile b{display:block;font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;margin-top:2px}
.tile span{font-size:13px;color:var(--muted)}
.spark{width:100%;height:60px;display:block;margin-top:8px}
/* ---------- lecture des fiches ---------- */
.md{font-size:17px;line-height:1.5;overflow-wrap:break-word}
.md h2{font-size:1.5em;margin:.4em 0 .4em;font-weight:700}.md h3{font-size:1.2em;margin:1.1em 0 .4em}.md h4{font-size:1.05em;margin:1em 0 .3em}
.md p{margin:.55em 0}.md ul,.md ol{padding-left:1.3em;margin:.5em 0}.md li{margin:.25em 0}.md li.sub{margin-left:1.2em;list-style:circle}
.md blockquote{margin:.8em 0;padding:10px 14px;border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 8px 8px 0}
.md mark{background:#FFE58F;color:#000;border-radius:3px;padding:0 2px}
.md code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88em;background:var(--fill);padding:1px 5px;border-radius:5px;overflow-wrap:anywhere}
.md pre{background:var(--fill);border-radius:10px;padding:10px 12px;overflow-x:auto;font-size:13px}
.md pre code{background:none;padding:0;overflow-wrap:normal;white-space:pre}
.md hr{border:0;border-top:.5px solid var(--line);margin:1.2em 0}
.md .katex-display{overflow-x:auto;overflow-y:hidden;padding:4px 0}
.md img{max-width:100%;height:auto}
/* ---------- quiz ---------- */
.qz{background:var(--card);border-radius:12px;padding:14px 16px;margin:0 0 12px}
.qz .qn{font-size:13px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.02em}
.qz .qq{margin:6px 0 10px}
.qz label{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border-radius:10px;background:var(--fill);margin:6px 0;cursor:pointer}
.qz label input{margin:2px 0 0;width:20px;height:20px;accent-color:var(--accent);flex:none}
.qz label.good{background:var(--ok-soft);box-shadow:inset 0 0 0 1.5px var(--ok)}
.qz label.bad{background:var(--bad-soft);box-shadow:inset 0 0 0 1.5px var(--bad)}
.qz .exp{font-size:15px;color:var(--sub);margin-top:8px}
.score{font-size:44px;font-weight:700;letter-spacing:-.02em;text-align:center;margin:6px 0 0}
/* ---------- messages ---------- */
.thread{display:flex;flex-direction:column;gap:2px;padding-bottom:8px}
.day{text-align:center;margin:14px 0 6px}.day span{font-size:12.5px;font-weight:500;color:var(--muted);background:var(--card);padding:4px 10px;border-radius:8px}
.msg{max-width:80%;align-self:flex-start;display:flex;flex-direction:column;margin-top:6px}
.msg.me{align-self:flex-end;align-items:flex-end}
.msg .who{font-size:12.5px;font-weight:600;color:var(--sub);margin:0 12px 2px}
.msg .bub{background:var(--card);border-radius:18px;padding:7px 12px;font-size:16.5px;line-height:1.32;overflow-wrap:anywhere;white-space:pre-wrap}
.msg.me .bub{background:var(--accent);color:#fff}
.msg.me .bub a{color:#fff;text-decoration:underline}
.msg time{font-size:11px;color:var(--muted);margin:2px 12px 0}
.composer{position:sticky;bottom:calc(64px + env(safe-area-inset-bottom));display:flex;gap:8px;align-items:flex-end;background:var(--bg);padding:8px 0}
.composer textarea{min-height:40px;max-height:140px;border-radius:20px;padding:9px 14px;background:var(--card);box-shadow:inset 0 0 0 .5px var(--line)}
.composer .send{width:40px;height:40px;border-radius:50%;border:0;background:var(--accent);color:#fff;display:grid;place-items:center;flex:none;cursor:pointer}
@media(min-width:861px){.composer{bottom:0}}
.note{font-size:13px;color:var(--muted);text-align:center;margin:6px 16px 10px;line-height:1.35}
/* ---------- fenêtres ---------- */
.mask{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.35);display:flex;align-items:flex-end;justify-content:center;animation:fade .15s}
.sheet{background:var(--bg);width:100%;max-width:560px;max-height:92dvh;overflow-y:auto;border-radius:14px 14px 0 0;padding:8px 16px calc(18px + env(safe-area-inset-bottom));animation:up .22s cubic-bezier(.2,.8,.2,1)}
.sheet .hd{display:flex;align-items:center;justify-content:space-between;gap:10px;position:sticky;top:-8px;background:var(--bg);padding:12px 0 10px;z-index:2}
.sheet .hd h2{font-size:17px;font-weight:600;margin:0}
.sheet .hd button{border:0;background:none;color:var(--accent);font-size:17px;cursor:pointer;padding:4px}
@media(min-width:861px){.mask{align-items:center}.sheet{border-radius:14px;max-height:86dvh}}
@keyframes fade{from{opacity:0}}@keyframes up{from{transform:translateY(40px);opacity:.4}}
#toast{position:fixed;left:50%;bottom:calc(92px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:200;background:rgba(30,30,30,.92);color:#fff;border-radius:14px;padding:10px 16px;font-size:15px;font-weight:500;max-width:90vw;text-align:center;pointer-events:none;opacity:0;transition:opacity .2s}
#toast.on{opacity:1}
/* ---------- connexion ---------- */
.gate{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px 16px}
.gate .box{width:100%;max-width:420px}
.gate .brand{display:flex;align-items:center;gap:12px;margin:0 0 22px}
.gate .brand b{font-size:24px;font-weight:700}
.gate h2{font-size:22px;margin:0 0 6px}
.gate p{color:var(--sub);font-size:15px;line-height:1.4}
.link{background:none;border:0;color:var(--accent);font-size:15px;padding:8px 0;cursor:pointer}
/* ---------- pages légales ---------- */
.legal h2{font-size:20px;margin:24px 0 8px}.legal p,.legal li{font-size:16px;line-height:1.5}
.legal table{width:100%;border-collapse:collapse;font-size:14px;background:var(--card);border-radius:12px;overflow:hidden}
.legal td,.legal th{border-bottom:.5px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.legal th{width:34%;color:var(--sub);font-weight:500}
.kid{background:var(--ok-soft);border-radius:12px;padding:12px 16px;margin:12px 0}
@media print{.tabs,.side,.back,.btns,.noprint{display:none!important}main{padding:0;max-width:none}html,body{background:#fff;color:#000}.legal table{background:#fff}}