/* noté · style A1 « Cahiers » (couleurs Sanzo Wada, combinaisons 247 + 267) */
:root{
  --bg:#FFFCF5; --ink:#1E2433; --mut:#8C8676; --line:#EFE7D6; --blue:#1c4286; --sienna:#bb7125;
  --red:#d96629; --yellow:#ffdd00; --cream:#FFF1D2; --margin:#f3b39a;
  --serif:"Young Serif",Georgia,serif; --sans:"Schibsted Grotesk",system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;padding:0}
input{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
svg{flex:none}
.hidden{display:none!important}

/* barre du haut */
.top{height:84px;display:flex;align-items:center;gap:16px;padding:0 48px;max-width:1440px;margin:0 auto}
.logo{position:relative;font:400 30px/1 var(--serif);color:var(--blue)}
.logo:after{content:"";position:absolute;left:0;right:6px;bottom:-8px;height:5px;border-radius:3px;background:var(--yellow)}
.av{margin-left:auto;width:40px;height:40px;border-radius:50%;background:var(--line);display:grid;place-items:center;font-weight:600;font-size:14px;overflow:hidden}
.av img{width:100%;height:100%;object-fit:cover}
.back{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--mut)}
.back svg{width:17px;height:17px}
.ct{display:flex;align-items:center;gap:10px;font:400 19px/1 var(--serif);min-width:0}
.ct span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ct i{flex:none;width:16px;height:21px;border-radius:2px 4px 4px 2px;background:var(--c,var(--sienna))}
.right{margin-left:auto;display:flex;gap:10px;align-items:center}

/* boutons */
.btn{height:52px;padding:0 22px;border-radius:12px;background:var(--blue);color:#fff;font-weight:600;font-size:16px;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn.sm{height:40px;padding:0 16px;font-size:14px}
.btn.ghost{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 1.5px var(--line)}
.btn.danger{background:#fff;color:#b3361b;box-shadow:inset 0 0 0 1.5px #f1c7b8}
.btn:disabled{opacity:.5;cursor:default}
.link{color:var(--blue);font-weight:600;font-size:14px}
.pill{height:40px;padding:0 14px;border-radius:999px;background:var(--cream);display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14px;color:#8a4b12;font-variant-numeric:tabular-nums}
.pill i{width:8px;height:8px;border-radius:50%;background:var(--red);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.35}}

/* accueil */
.wrap{max-width:1100px;margin:30px auto 80px;padding:0 24px}
.h1{margin:0;font:400 56px/1.05 var(--serif)}
.date{margin:12px 0 32px;font-size:16px;font-weight:500;color:var(--mut)}
.now{display:flex;align-items:center;gap:22px;padding:24px 28px;border-radius:18px;background:#fff;border:1.5px solid var(--line)}
.mini{position:relative;flex:none;width:46px;height:60px;border-radius:3px 7px 7px 3px;background:var(--c,var(--sienna))}
.mini:after{content:"";position:absolute;right:8px;top:0;bottom:0;width:4px;background:rgba(0,0,0,.22)}
.now .l{flex:1;min-width:0}
.now small{font-weight:600;font-size:13px;color:var(--sienna)}
.now b{display:block;margin:8px 0 7px;font:400 30px/1.1 var(--serif)}
.now .l span{font-size:15px;font-weight:500;color:var(--mut)}
.secth{display:flex;align-items:baseline;gap:16px;margin:46px 0 24px}
.h3{margin:0;font:400 24px/1 var(--serif)}
.nbs{display:flex;flex-wrap:wrap;gap:30px 22px}
.nb{width:118px;position:relative;text-align:left}
.cv{position:relative;height:162px;border-radius:4px 10px 10px 4px;background:var(--c);display:flex;align-items:center;justify-content:center;transition:transform .15s}
.nb:hover .cv{transform:translateY(-4px)}
.cv:before{content:"";position:absolute;left:0;top:0;bottom:0;width:10px;background:rgba(0,0,0,.12);border-radius:4px 0 0 4px}
.cv:after{content:"";position:absolute;right:14px;top:0;bottom:0;width:5px;background:rgba(0,0,0,.2)}
.lab{position:relative;z-index:1;width:92px;padding:9px 5px;border-radius:6px;background:var(--bg);text-align:center;font:400 12px/1.2 var(--serif);margin-left:2px;overflow-wrap:anywhere;hyphens:auto}
.nb i{display:block;margin-top:10px;font-size:13px;font-weight:500;font-style:normal;color:var(--mut)}
.nb.on i{color:var(--sienna);font-weight:600}
.rib{position:absolute;top:-10px;left:26px;width:14px;height:30px;background:var(--yellow);clip-path:polygon(0 0,100% 0,100% 100%,50% 78%,0 100%);z-index:2}
.nb.add .cv{background:transparent;border:1.5px dashed #D9CDB6;font:400 30px/1 var(--serif);color:var(--mut)}
.nb.add .cv:before,.nb.add .cv:after{display:none}
.empty{padding:34px;border-radius:18px;border:1.5px dashed #D9CDB6;text-align:center}
.empty h2{margin:0 0 10px;font:400 26px/1.2 var(--serif)}
.empty p{margin:0 auto 22px;max-width:520px;color:var(--mut);line-height:1.5}
.empty .row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* page de cours */
.strip{max-width:1180px;margin:0 auto;padding:0 24px 0 48px;display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
.chip{flex:none;height:34px;padding:0 13px;border-radius:999px;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line);font-size:13.5px;font-weight:500;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.chip.on{background:var(--ink);color:#fff;box-shadow:none}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--red)}
/* choix de la page */
.pagebar{display:flex;justify-content:flex-end;margin:0 0 8px}
.pagepick{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 12px 0 14px;border-radius:10px;background:#fff;box-shadow:inset 0 0 0 1.5px var(--line);max-width:300px}
.pagepick small{font-size:12.5px;color:var(--mut);font-weight:500}
.pagepick b{font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pagepick:hover{box-shadow:inset 0 0 0 1.5px #D9CDB6}
/* menus */
.menu{position:absolute;z-index:40;min-width:230px;max-width:320px;max-height:70vh;overflow:auto;padding:6px;border-radius:14px;background:#fff;border:1.5px solid var(--line);box-shadow:0 16px 40px -18px rgba(30,36,51,.45);animation:fade .12s}
.menu button{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;border-radius:10px;text-align:left}
.menu button:hover{background:#F7F3EA}
.menu button svg{width:20px;height:20px;color:var(--blue)}
.menu b{display:block;font-size:15px;font-weight:600}.menu small{display:block;font-size:12.5px;color:var(--mut);margin-top:2px}
.menu .msep{display:block;height:1.5px;margin:6px 8px;background:var(--line)}

/* barre de mise en forme */
.tb{position:sticky;top:10px;z-index:5;margin:0 0 10px;padding:6px 8px;border-radius:12px;background:#fff;border:1.5px solid var(--line);box-shadow:0 6px 18px -12px rgba(30,36,51,.35);overflow-x:auto;scrollbar-width:none}
.tb .fmt,.tb .drw{display:flex;align-items:center;gap:2px}
.tb .drw{display:none}
.tb.drawing .fmt{display:none}.tb.drawing .drw{display:flex}
.drw .lbl{display:inline-flex;align-items:center;gap:6px;margin-right:8px;font-weight:600;font-size:14px;color:var(--blue)}.drw .lbl svg{width:17px;height:17px}
.drw .done{margin-left:auto;height:34px}
.sw.pen{width:22px;height:22px;margin:0 2px}.sw.pen.on{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--ink)}
.pen-on span{font-size:13.5px;font-weight:600;margin-left:3px}
.size{display:inline-flex;align-items:center;flex:none}
.size input{width:40px;height:30px;border:1.5px solid var(--line);border-radius:7px;text-align:center;font:600 13.5px var(--sans);outline:none;background:#fff}
.size input:focus{border-color:var(--blue)}
.size .tbb{min-width:26px;padding:0 3px}.size .tbb svg{width:15px;height:15px}
.tbb{flex:none;height:32px;min-width:30px;padding:0 5px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;gap:2px;font-size:16px;color:var(--ink)}
.tbb svg{width:18px;height:18px}
.tbb:hover{background:#F7F3EA}
.tbb.on{background:#E8EEF8;color:var(--blue)}
.tbs{flex:none;height:32px;padding:0 6px;border:0;border-radius:7px;background:transparent;font:500 13.5px var(--sans);color:var(--ink);cursor:pointer}
.tbs:hover{background:#F7F3EA}
.tbs.block{width:112px}.tbs.font{width:118px}
.tb .sep{flex:none;width:1.5px;height:20px;margin:0 3px;background:var(--line)}
.ink-a{position:relative;font-weight:700;line-height:1;padding-bottom:4px}
.ink-a u{position:absolute;left:-2px;right:-2px;bottom:0;height:3px;border-radius:2px;background:var(--ink)}
.dd{position:relative;flex:none}
.pop{display:none;position:fixed;z-index:20;margin-top:6px;padding:10px;border-radius:12px;background:#fff;border:1.5px solid var(--line);box-shadow:0 12px 30px -14px rgba(30,36,51,.4);grid-template-columns:repeat(4,26px);gap:7px}
.pop.open{display:grid}
.sw{width:26px;height:26px;border-radius:50%;box-shadow:inset 0 0 0 1.5px rgba(0,0,0,.08)}
.sw:hover{transform:scale(1.12)}
.sw.none{display:grid;place-items:center;background:#fff;color:var(--mut)}

/* révision à la demande */
.syn-card{max-width:860px;margin:0 auto;padding:34px 44px}
.editor.static{min-height:0;margin:0}
.stale{display:flex;align-items:center;gap:12px;max-width:860px;margin:0 auto 14px;padding:10px 14px;border-radius:12px;background:#FFF7D1;font-size:14.5px;font-weight:500}
.stale .btn{margin-left:auto}
/* crayon */
.ink{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:4;overflow:visible}
.ink.on{pointer-events:auto;cursor:crosshair;touch-action:none}
.ink.on.erasing{cursor:cell}
/* export */
.modal.export{max-width:560px}
.ex-what{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 18px}
.ex-opt input{position:absolute;opacity:0;pointer-events:none}
.ex-opt span{display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 14px;border-radius:999px;box-shadow:inset 0 0 0 1.5px var(--line);font-weight:600;font-size:14px;cursor:pointer}
.ex-opt span svg{width:16px;height:16px}
.ex-opt input:checked+span{background:var(--ink);color:#fff;box-shadow:none}
.ex-how{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ex-act{display:flex;flex-direction:column;align-items:flex-start;gap:3px;padding:16px;border-radius:14px;background:#F7F8FC;text-align:left;color:var(--ink)}
.ex-act svg{width:22px;height:22px;color:var(--blue);margin-bottom:6px}
.ex-act b{font-size:15px}.ex-act small{font-size:12.5px;color:var(--mut)}
.ex-act:hover{background:#EDF1F9}.ex-act:disabled{opacity:.5}.ex-act.busy{opacity:1;animation:pulse 1s infinite}
/* mascotte */
.plume{display:inline-block;vertical-align:middle;flex:none}
.plume.bob{animation:bob 1.4s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-4px) rotate(-4deg)}}
.desk{position:relative;max-width:1180px;margin:14px auto 60px;padding:0 24px;display:flex;align-items:flex-start}
.sheet{flex:1;min-width:0;max-width:860px}
.page{position:relative;min-height:760px;background:#fff;border:1.5px solid var(--line);border-radius:6px;padding:38px 56px 60px 104px;z-index:2}
.page:before{content:"";position:absolute;left:76px;top:0;bottom:0;width:2px;background:var(--margin)}
.page h1{margin:0;font:400 38px/1.1 var(--serif);color:var(--blue)}
.title{outline:none;border-radius:6px;min-height:42px}
.title:not(.static):hover{box-shadow:0 0 0 6px #F7F8FC;background:#F7F8FC}
.title:empty:before{content:attr(data-placeholder);color:#9db0d3}
.page.drag{box-shadow:0 0 0 3px var(--blue)}
.page.drag:after{content:"Dépose ici pour ajouter tes notes à la page";position:absolute;inset:0;display:grid;place-items:center;background:rgba(255,252,245,.88);font:400 22px/1.3 var(--serif);color:var(--blue);z-index:9;border-radius:6px}
#ed,#syn{min-height:60px}
/* trous de perforatrice dans la marge */
.page{background-image:radial-gradient(circle at 36px 50%,var(--bg) 0 8px,#E3D8C1 8.6px 10px,transparent 10.6px);background-size:76px 128px;background-repeat:repeat-y;background-position:0 30px}
.meta{margin-top:10px;font-size:15px;font-weight:500;color:var(--mut)}
.doc-tag{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 6px 0 10px;border-radius:7px;background:#F7F3EA;color:var(--ink);font-size:13px}
.doc-tag button{width:20px;height:20px;border-radius:5px;display:grid;place-items:center;color:var(--mut)}
.doc-tag button:hover{background:#ece4d4}
.editor{margin-top:16px;outline:none;font-size:17px;line-height:1.7;color:#2A2F3D;min-height:260px}
.editor h2{margin:26px 0 6px;font:400 21px/1.3 var(--serif);color:var(--ink)}
.editor h3{margin:18px 0 4px;font-size:17px;font-weight:700}
.editor p{margin:0 0 4px}.editor ul,.editor ol{margin:0 0 6px;padding-left:22px}
.editor h4{margin:14px 0 2px;font-size:16px;font-weight:700}
.editor img{max-width:100%;height:auto;border-radius:4px}
.editor table{border-collapse:collapse;margin:8px 0;width:100%}.editor td,.editor th{border:1px solid var(--line);padding:6px 8px;vertical-align:top}
.editor a{color:var(--blue);text-decoration:underline}
.editor b{font-weight:700;color:var(--ink)}
.editor mark{background:linear-gradient(transparent 55%,var(--yellow) 55%);color:inherit}
.editor .f,.editor .formula{font-weight:600;color:var(--blue)}
.editor .formula{margin:6px 0}
.editor:empty:before{content:attr(data-placeholder);color:#b9b2a2}
.editor .new{animation:appear .6s ease}
@keyframes appear{from{background:#FFF7D1}to{background:transparent}}
.live-line{margin-top:20px;display:flex;align-items:center;gap:10px;font-size:14px;color:var(--mut);min-height:22px}
.live-line svg{width:15px;height:15px;color:var(--red)}
.live-line q{font-style:italic;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;max-width:100%}
.aiw{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--blue)}
.start{display:flex;gap:16px;align-items:flex-start;margin:18px 0 4px;padding:16px 20px;border-radius:14px;background:#F7F8FC;text-align:left}
.start p{margin:2px 0 10px;color:#4a5165;line-height:1.55}
.start p.small{font-size:14px;color:var(--mut);margin:0}
.start .row{display:flex;gap:10px;flex-wrap:wrap}
.after{margin-top:34px;padding-top:24px;border-top:1.5px dashed var(--line)}
.after h2{margin:0 0 8px;font:400 21px/1.3 var(--serif)}
.editor.summary{margin-top:6px;min-height:0;font-size:16px;line-height:1.65}
.study-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
details.tr{margin-top:22px}
details.tr summary{cursor:pointer;font-weight:600;color:var(--blue);font-size:14px}
.trtext{margin-top:12px;font-size:15px;line-height:1.7;color:#454b5a}
.trtext h2{font:400 18px/1.3 var(--serif);margin:16px 0 4px}

/* colonne de droite : supports du cours + « La prof a dit » */
.side{flex:none;width:276px;margin-left:-16px;padding-top:110px}
.side-h{margin:0 0 10px;font:400 16px/1.2 var(--serif);color:var(--ink)}
.sup{margin:0 0 30px 30px}
.dz{display:flex;flex-direction:column;align-items:center;gap:3px;padding:16px 12px;border-radius:14px;border:1.5px dashed #D9CDB6;background:#fff;text-align:center;cursor:pointer;transition:.15s}
.dz svg{width:22px;height:22px;color:var(--blue);margin-bottom:4px}
.dz b{font-size:14px}.dz small{font-size:12.5px;color:var(--mut);line-height:1.35}
.dz:hover,.dz.drag{border-color:var(--blue);background:#F4F7FC}
.sup .docs{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.sup .doc-tag{max-width:100%}.sup .doc-tag svg{width:14px;height:14px;color:var(--blue)}
.sup .doc-tag>span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}
.sup .hint{margin:10px 0 0;font-size:12.5px;line-height:1.45;color:var(--mut)}
.flux-empty .ghost{margin-bottom:7px;padding:9px 14px 9px 30px;width:166px;border-radius:0 10px 10px 0;background:var(--t);opacity:.38;font-weight:700;font-size:12px;color:rgba(30,36,51,.75)}
.flux-empty .ghost:nth-child(2){width:140px}.flux-empty .ghost:nth-child(3){width:116px}
.flux-empty p{margin:12px 0 0;font-size:13.5px;line-height:1.5;color:var(--mut);max-width:230px}
.tabs{position:relative;z-index:1}
.tabs .side-h{margin-left:30px}
.tabs .flux-empty{margin-left:0}
.flux-empty p{margin-left:30px!important}
.tab{position:relative;margin-bottom:10px;padding:11px 34px 12px 30px;background:var(--t);border-radius:0 12px 12px 0;animation:slide .4s ease}
@keyframes slide{from{transform:translateX(-14px);opacity:0}}
.tab small{display:flex;justify-content:space-between;font-weight:700;font-size:12px;color:rgba(30,36,51,.7)}
.tab p{margin:6px 0 0;font-weight:600;font-size:15px;line-height:1.3}
.tab .x{position:absolute;right:8px;top:8px;width:20px;height:20px;border-radius:5px;display:none;place-items:center;color:rgba(30,36,51,.5)}
.tab:hover .x{display:grid}


/* révision */
.switch{display:flex;gap:6px;justify-content:center;margin:6px 0 26px}
.study{max-width:1100px;margin:0 auto 60px;padding:0 24px}
.card{background:#fff;border:1.5px solid var(--line);border-radius:18px}
.loading{padding:80px 20px;text-align:center;color:var(--mut)}
.loading .spin{width:28px;height:28px;margin:0 auto 14px;border:3px solid var(--line);border-top-color:var(--blue);border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.mm{position:relative;overflow:auto}
.mm svg text{font-family:var(--sans)}
.fc-wrap{max-width:640px;margin:0 auto}
.fc{height:300px;perspective:1200px;cursor:pointer}
.fc-in{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d}
.fc.flip .fc-in{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;border-radius:18px;padding:34px;display:flex;flex-direction:column;justify-content:center;background:#fff;border:1.5px solid var(--line)}
.fc-face.back{transform:rotateY(180deg);background:var(--cream)}
.fc-face small{position:absolute;top:18px;left:22px;font-size:12.5px;font-weight:600;color:var(--mut)}
.fc-face p{margin:0;font:400 26px/1.3 var(--serif);text-align:center}
.fc-face.back p{font:500 20px/1.45 var(--sans)}
.fc-nav{display:flex;align-items:center;justify-content:space-between;margin-top:18px}
.quiz{max-width:720px;margin:0 auto;padding:34px 40px}
.qbar{display:flex;align-items:center;gap:14px;margin-bottom:24px;font-weight:600;color:var(--mut);font-size:14px}
.qbar .bar{flex:1;height:8px;border-radius:999px;background:#F3ECDD;overflow:hidden}
.qbar .bar u{display:block;height:100%;background:var(--blue);text-decoration:none}
.quiz h2{margin:0 0 22px;font:400 26px/1.3 var(--serif)}
.opt{display:flex;align-items:center;gap:14px;width:100%;min-height:60px;margin-bottom:10px;padding:12px 18px;border-radius:14px;box-shadow:inset 0 0 0 2px var(--line);text-align:left;font-weight:600;font-size:16px;background:#fff}
.opt .k{flex:none;width:32px;height:32px;border-radius:9px;background:#F7F3EA;display:grid;place-items:center;font-weight:700;color:var(--mut)}
.opt.ok{box-shadow:inset 0 0 0 2px #00978d;background:#E7F6F4}.opt.ok .k{background:#00978d;color:#fff}
.opt.ko{box-shadow:inset 0 0 0 2px #d96629;background:#FDEEE6}.opt.ko .k{background:#d96629;color:#fff}
.explain{margin-top:14px;padding:14px 16px;border-radius:12px;background:#F7F8FC;line-height:1.55;color:#3a4152}
.qnext{display:flex;justify-content:flex-end;margin-top:20px}
.score{text-align:center;padding:30px}
.score b{display:block;font:400 64px/1 var(--serif);color:var(--blue);margin-bottom:10px}

/* connexion */
.login{min-height:100vh;display:grid;place-items:center;padding:24px}
.login .box{width:100%;max-width:440px;padding:40px;border-radius:20px;background:#fff;border:1.5px solid var(--line);text-align:center}
.login h1{margin:26px 0 10px;font:400 34px/1.15 var(--serif)}
.login p{margin:0 0 28px;color:var(--mut);line-height:1.5}
.login form{display:grid;gap:10px;text-align:left}
.field{height:48px;padding:0 14px;border-radius:12px;border:1.5px solid var(--line);background:#fff;outline:none;width:100%}
.field:focus{border-color:var(--blue)}
.login .note{margin-top:16px;font-size:12.5px;color:var(--mut)}
#gbtn{display:flex;justify-content:center}

/* fenêtres */
.ov{position:fixed;inset:0;z-index:50;background:rgba(30,36,51,.35);display:grid;place-items:center;padding:20px;animation:fade .2s}
@keyframes fade{from{opacity:0}}
.modal{width:100%;max-width:480px;padding:30px;border-radius:20px;background:#fff}
.modal.wide{max-width:760px;text-align:center;padding:38px}
.modal h2{margin:0 0 8px;font:400 26px/1.2 var(--serif)}
.modal p{margin:0 0 20px;color:var(--mut);line-height:1.5}
.modal .row{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}
.modal .or{margin:16px 0;text-align:center;color:var(--mut);font-size:13px}
.drop{display:block;padding:18px;border-radius:12px;border:1.5px dashed #D9CDB6;text-align:center;color:var(--mut);cursor:pointer;font-size:14px}
.choices{display:flex;gap:14px;margin-top:6px}
.choice{flex:1;padding:22px 18px;border-radius:16px;text-align:left;background:var(--t)}
.choice b{display:block;font:400 21px/1.2 var(--serif);margin-bottom:6px}
.choice span{font-size:14px;color:rgba(30,36,51,.7)}
.later{margin-top:16px;font-size:14px;color:var(--mut);font-weight:600}
#toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%);z-index:60;padding:12px 18px;border-radius:12px;background:var(--ink);color:#fff;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s}
#toast.on{opacity:1}

@media (max-width:640px){
  .top .lbl{display:none}
  .top .btn.sm{padding:0 11px}
  .pagepick{width:100%;max-width:none}
  .syn-card{padding:24px 20px}
  .ex-how{grid-template-columns:1fr}
}
@media (max-width:900px){
  .page{background-image:none}
  .sheet{max-width:none;width:100%}
  .side{width:100%;margin:20px 0 0;padding-top:0}
  .sup{margin-left:0}
  .tb{top:6px}
  .top{padding:0 20px;height:70px}
  .h1{font-size:42px}
  .desk{flex-direction:column;padding:0 12px}
  .page{padding:28px 22px 40px 40px;min-height:0}
  .page:before{left:22px}
  .tab{border-radius:12px}
  .choices{flex-direction:column}
  .now{flex-wrap:wrap}
}