:root{
  --olive:#8C9F4C;--olive-deep:#5E6E2A;--sand:#FFDFAD;--sand-soft:#FFF5E6;
  --ink:#1B1B17;--muted:#5D5A50;--line:#ECE3D2;--page:#FFFFFF;
  --phys:#1F7A8C;--phys-deep:#135461;--phys-soft:#E2F1F4;
  --chem:#8A4F7D;--chem-deep:#5E3355;--chem-soft:#F4E7F1;
  --juice:#F08A24;--juice-soft:#FFF0E0;
  --good:#2F7D4F;--good-bg:#E4F3EA;--bad:#B23A2E;--bad-bg:#FBE7E4;--gold:#E0A526;
  --font:"Readex Pro","Segoe UI",Tahoma,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--page);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.75}
button{font:inherit;color:inherit}
.wrap{max-width:760px;margin:0 auto;padding:0 18px}
.eq{direction:ltr;unicode-bidi:isolate;font-weight:600;white-space:nowrap;font-family:"Readex Pro",sans-serif}
.muted{color:var(--muted)}
:focus-visible{outline:3px solid var(--olive);outline-offset:2px}
h1{font-size:28px;line-height:1.35;margin:0 0 6px;text-wrap:balance}
h2{font-size:22px;line-height:1.4;margin:0 0 8px;text-wrap:balance}
h3{font-size:18px;margin:0 0 6px}
p{margin:0 0 12px}

/* top */
.top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:10px;height:62px}
.brand{display:flex;align-items:center;gap:8px;background:none;border:0;cursor:pointer;padding:0}
.brand b{font-family:Lalezar,var(--font);font-size:28px;font-weight:400;line-height:1;color:var(--juice)}
.brand small{font-size:12px;color:var(--muted);border-inline-start:1px solid var(--line);padding-inline-start:8px}
.stats{margin-inline-start:auto;display:flex;gap:8px}
.stat{display:flex;align-items:center;gap:5px;font-weight:700;font-size:15px;background:var(--sand-soft);border-radius:999px;padding:4px 12px;font-variant-numeric:tabular-nums}

.btn{border:0;border-radius:999px;padding:12px 26px;font-weight:700;font-size:17px;background:var(--ink);color:#fff;cursor:pointer;transition:transform .12s}
.btn:active{transform:scale(.97)}
.btn.ph{background:var(--phys)}
.btn.ghost{background:var(--sand-soft);color:var(--ink)}
.btn:disabled{opacity:.35;cursor:default}
.view{padding:24px 0 70px}

/* home */
.hero{background:var(--juice-soft);border-radius:24px;padding:20px;display:flex;gap:16px;align-items:center;margin-bottom:20px}
.hero .drop{width:64px;height:64px;flex:none}
.grade{font-size:14px;font-weight:600;color:var(--juice);margin-bottom:2px}
.tabs{display:flex;gap:6px;background:var(--sand-soft);padding:5px;border-radius:999px;width:max-content;margin:0 0 18px}
.tabs button{border:0;background:none;padding:6px 20px;border-radius:999px;font-weight:600;font-size:15px;color:var(--muted);cursor:pointer}
.tabs button.on{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.chap{border:1px solid var(--line);border-radius:20px;margin-bottom:12px;overflow:hidden}
.chap-h{display:flex;align-items:center;gap:12px;padding:14px 16px}
.chap-n{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;color:#fff;font-weight:700;flex:none}
.chap-h h3{margin:0;font-size:17px}
.chap-h small{color:var(--muted);font-size:13px}
.lesson{display:flex;align-items:center;gap:12px;width:100%;border:0;border-top:1px solid var(--line);background:#fff;padding:12px 16px;text-align:right;cursor:pointer;font-size:15px}
.lesson .code{font-weight:700;font-size:13px;border-radius:8px;padding:1px 8px;direction:ltr;unicode-bidi:isolate}
.lesson .go{margin-inline-start:auto;font-weight:700;font-size:13px;color:#fff;background:var(--phys);border-radius:999px;padding:3px 12px}
.lesson.lock{cursor:default;color:var(--muted)}
.lesson.lock .go{background:var(--line);color:var(--muted)}
.lesson.done .go{background:var(--good)}

/* lesson */
.crumb{font-size:14px;color:var(--muted);margin-bottom:4px}
.stagebar{display:flex;gap:6px;margin:10px 0 6px}
.stagebar button{flex:1;height:9px;border-radius:9px;background:var(--line);border:0;padding:0;cursor:pointer}
.stagebar button.done{background:var(--olive)}
.stagebar button.now{background:var(--phys)}
.stagenames{display:flex;gap:6px;font-size:12px;color:var(--muted);margin-bottom:20px}
.stagenames span{flex:1;text-align:center}
.stagenames span.now{color:var(--phys);font-weight:700}
.stage-title{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.stage-title .num{font-size:13px;font-weight:700;color:#fff;background:var(--phys);border-radius:8px;padding:2px 10px}
.nav{display:flex;gap:10px;justify-content:space-between;margin-top:26px}
.card{border:1px solid var(--line);border-radius:20px;padding:18px;background:#fff;margin-bottom:14px}
.big-idea{background:var(--phys);color:#fff;border-radius:24px;padding:26px 22px;font-size:22px;font-weight:600;line-height:1.6;text-wrap:balance;margin-bottom:16px}
.big-idea small{display:block;font-size:14px;font-weight:400;opacity:.85;margin-bottom:6px}
.poll{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.opt{border:1.5px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px;text-align:right;cursor:pointer;font-size:16px;transition:border-color .15s,background .15s}
.opt:hover{border-color:var(--phys)}
.opt.right{border-color:var(--good);background:var(--good-bg)}
.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}
.opt:disabled{cursor:default}
.fb{border-radius:14px;padding:12px 14px;margin-top:10px;font-size:15px;animation:in .3s}
.fb.ok{background:var(--good-bg)} .fb.no{background:var(--bad-bg)}
.back{border:0;background:none;color:var(--phys-deep);font-weight:700;text-decoration:underline;cursor:pointer;padding:0;font-size:15px}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* understand */
.concept{margin-bottom:26px}
.concept .lbl{display:inline-block;font-size:13px;font-weight:700;color:var(--phys-deep);background:var(--phys-soft);border-radius:8px;padding:1px 10px;margin-bottom:6px}
.sim{background:var(--phys-soft);border-radius:20px;padding:14px;margin:12px 0}
.sim canvas{width:100%;height:auto;display:block;background:#0F2A33;border-radius:14px}
.ctrl{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:10px;font-size:14px;font-weight:600}
.ctrl label{display:flex;align-items:center;gap:8px;flex:1;min-width:200px}
.ctrl input[type=range]{flex:1;accent-color:var(--phys)}
.chip{border:0;border-radius:999px;padding:5px 14px;font-size:14px;font-weight:600;background:#fff;cursor:pointer}
.chip.on{background:var(--phys);color:#fff}
.laws{display:grid;gap:10px}
.law{display:flex;gap:12px;align-items:flex-start;background:#fff;border-radius:14px;padding:12px}
.law i{font-style:normal;width:30px;height:30px;border-radius:10px;background:var(--phys);color:#fff;display:grid;place-items:center;font-weight:700;flex:none}
.law.hl{outline:2px solid var(--juice)}
.grav{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.grav label{display:block;font-size:13px;font-weight:600}
.grav input{width:100%;accent-color:var(--phys)}
.grav output{font-weight:700}
.result{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff;border-radius:14px;padding:10px 14px;margin-top:10px}
.result b{font-size:26px;color:var(--phys-deep)}
.note{background:var(--sand-soft);border-radius:14px;padding:12px 14px;font-size:15px}
.note b{color:var(--olive-deep)}
.check{border:1.5px dashed var(--phys);border-radius:16px;padding:14px;margin-top:12px}
.check h3{font-size:15px;color:var(--phys-deep)}

/* laws flip */
.flips{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.flip{perspective:900px;height:210px;border:0;background:none;padding:0;cursor:pointer;text-align:center}
.flip .in{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d}
.flip.on .in{transform:rotateY(180deg)}
.flip .f,.flip .b{position:absolute;inset:0;border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:14px;backface-visibility:hidden}
.flip .f{background:var(--phys);color:#fff}
.flip .f .eq{font-size:21px}
.flip .f small{opacity:.85;font-size:13px;margin-top:10px}
.flip .b{background:var(--phys-soft);transform:rotateY(180deg);font-size:14px;line-height:1.6;text-align:right;align-items:stretch;justify-content:center}
.flip .b b{color:var(--phys-deep)}
.frac{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;line-height:1.15;margin:0 3px}
.frac>span:first-child{border-bottom:2px solid currentColor;padding:0 4px}
.frac>span{padding:0 4px}
.sq{display:inline-flex;align-items:center}
.sq::before{content:"√";font-size:1.25em;margin-inline-end:1px}
.sq>span{border-top:2px solid currentColor}

/* example */
.given{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.given span{background:var(--phys-soft);border-radius:10px;padding:3px 10px;font-size:15px}
.steps{list-style:none;margin:10px 0 0;padding:0}
.steps li{padding:10px 14px;border-radius:12px;margin-bottom:8px;background:#FAFAF7;font-size:15px;animation:in .3s}
.steps li .why{display:block;color:var(--muted);font-size:13px}
.steps li.ans{background:var(--good-bg);font-weight:700}
.reveal{border:1.5px dashed var(--phys);background:none;border-radius:12px;padding:9px 16px;cursor:pointer;font-weight:600;color:var(--phys-deep);margin-top:4px}

/* quiz */
.qhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.dots{display:flex;gap:5px}
.dots i{width:10px;height:10px;border-radius:50%;background:var(--line)}
.dots i.ok{background:var(--good)} .dots i.no{background:var(--bad)} .dots i.now{background:var(--phys)}
.qopts{display:grid;gap:8px;margin-top:12px}
.qopts .opt .eq{font-size:16px}
.score{text-align:center;padding:10px 0}
.score .big{font-size:56px;font-weight:700;color:var(--phys-deep);line-height:1.1}
.starrow{display:flex;justify-content:center;gap:6px;margin:8px 0}
.starrow svg{width:38px;height:38px}
.weak{text-align:right;margin-top:12px}

/* juice */
.juice{background:var(--juice-soft);border-radius:24px;padding:20px}
.juice h2{color:#B35E0E}
.juice ol{margin:0;padding-inline-start:22px}
.juice li{margin-bottom:10px}
.juice li .eq{background:#fff;border-radius:8px;padding:1px 8px}
.ph-soft{background:var(--phys-soft)}


/* laws game */
.tree{display:flex;flex-direction:column;align-items:center;gap:0;margin-top:12px}
.trow{display:flex;gap:12px;width:100%;justify-content:center}
.tnode{border:0;border-radius:18px;padding:12px 16px;color:#fff;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;box-shadow:0 5px 0 rgba(0,0,0,.18);transition:transform .12s;flex:1;max-width:300px}
.tnode:active{transform:translateY(3px)}
.tnode small{font-size:12px;opacity:.85}
.tnode .eq{font-size:16px}
.tnode.won::after{content:"✓ ركّبته";font-size:12px;background:rgba(255,255,255,.25);border-radius:99px;padding:0 8px;margin-top:4px}
.t0{background:#1F7A8C;max-width:340px;width:100%}.t1{background:#5E6E2A}.t2{background:#F08A24}.t3{background:#8A4F7D;max-width:340px;width:100%}
.tlines{display:flex;justify-content:space-around;width:60%;height:26px}
.tlines i{width:3px;background:var(--line);border-radius:3px}
.tlines.one{justify-content:flex-start;width:50%;padding-inline-end:0}
.lawcard{border:2px solid var(--c);border-radius:22px;padding:18px;background:#fff}
.lc-top{display:flex;flex-direction:column;gap:2px;margin-bottom:8px}
.nick{align-self:flex-start;background:var(--c);color:#fff;border-radius:99px;padding:1px 12px;font-size:13px;font-weight:700}
.story{background:var(--sand-soft);border-radius:14px;padding:12px 14px;font-size:16px}
.slots{display:flex;flex-wrap:wrap;gap:6px;direction:rtl;margin:10px 0 14px;min-height:52px;align-items:center}
.slot{min-width:64px;height:46px;border:2px dashed var(--line);border-radius:12px;display:grid;place-items:center;padding:0 10px;font-size:15px;color:transparent;transition:all .25s}
.slot.filled{border-style:solid;border-color:var(--c);color:var(--ink);background:#fff}
.slots.ltr{direction:ltr;justify-content:center;gap:4px;flex-wrap:nowrap}
.slots.ltr .slot{min-width:0;padding:0 8px}
.slot.sym{background:var(--c);color:#fff;border-color:var(--c);font-size:18px;transform:scale(1.04)}
.slot .w{white-space:nowrap}
.pieces{display:flex;flex-wrap:wrap;gap:8px}
.piece{border:0;background:var(--sand);border-radius:12px;padding:10px 14px;font-weight:600;font-size:15px;cursor:pointer;box-shadow:0 3px 0 #E8C48A;transition:transform .1s,opacity .2s}
.piece:active{transform:translateY(2px)}
.piece.used{display:none}
.shake{animation:shake .35s;background:var(--bad-bg)!important}
@keyframes shake{0%,100%{transform:none}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.rapid{background:#0F2A33;color:#fff;border-radius:24px;padding:18px}
.rtop{display:flex;justify-content:space-between;font-size:14px;font-weight:600;opacity:.9}
.combo.hot{color:#FFB23F;animation:in .3s}
.timer{height:8px;background:rgba(255,255,255,.15);border-radius:8px;margin:12px 0 16px;overflow:hidden}
.timer i{display:block;height:100%;width:100%;background:#F08A24;border-radius:8px}
.rq{font-size:21px;font-weight:600;text-align:center;margin:8px 0 18px;text-wrap:balance}
.rops{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.rop{border:0;border-radius:16px;padding:16px 6px;font-size:20px;font-weight:700;background:rgba(255,255,255,.1);color:#fff;cursor:pointer}
.rop.right{background:var(--good)}.rop.wrong{background:var(--bad)}

@media (max-width:560px){
  h1{font-size:24px}.big-idea{font-size:19px}
  .flips{grid-template-columns:1fr}
  .grav{grid-template-columns:1fr}
  .poll{grid-template-columns:1fr}
  .brand small{display:none}
  .stagenames{font-size:10.5px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.lawgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.lawgrid .tnode{max-width:none;width:100%}
.formula{text-align:center;font-size:19px;background:var(--phys-soft);border-radius:14px;padding:12px;margin:10px 0}
.readout3{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}
.readout3 div{background:#fff;border-radius:12px;padding:6px 10px}
.readout3 small{display:block;color:var(--muted);font-size:12px}
.readout3 b{font-size:14px}
.ebar{display:block;height:9px;background:var(--line);border-radius:9px;margin-top:8px;overflow:hidden}
.ebar i{display:block;height:100%;background:var(--juice);border-radius:9px}
.specs{display:grid;gap:8px;margin:10px 0}
.specs small{display:block;font-size:13px;color:var(--muted)}
.specs i{display:block;height:26px;border-radius:8px;position:relative;overflow:hidden}
.specs .cont{background:linear-gradient(90deg,#7B2FBE,#3A3FD6,#1FB5C9,#3BBF4C,#F2E33A,#F59A2B,#E2262B)}
.specs .lines{background:#111;direction:ltr}
.specs .lines b{position:absolute;top:0;bottom:0;width:4px}
.sim canvas{width:100%;height:auto;display:block;border-radius:14px}
.ctrl b.eq{font-size:14px}
.concept p{margin-bottom:10px}
.big-idea{font-size:20px;padding:20px}
.crumb .eq{font-weight:600}
@media (max-width:560px){.lawgrid{grid-template-columns:1fr}.readout3{grid-template-columns:1fr 1fr}}
.cfg-el{text-align:center;margin:6px 0}
.boxes{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;direction:ltr;background:#fff;border-radius:14px;padding:12px;margin:6px 0}
.bx{text-align:center}
.bxs{display:flex;gap:2px}
.bxs span{width:30px;height:30px;border:2px solid var(--phys);border-radius:6px;display:grid;place-items:center;font-weight:700;color:var(--phys-deep);font-size:15px;letter-spacing:-2px}
.bx small{font-size:13px;color:var(--muted)}
.lewis{font-weight:700;color:var(--phys-deep);letter-spacing:1px;direction:ltr;unicode-bidi:isolate}
.tier{display:grid;gap:6px;margin:8px 0}
.tier div{background:var(--phys-soft);border-radius:12px;padding:8px 12px}
.tier b{display:block}.tier span{font-size:14px;color:var(--muted)}
.lewis-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;direction:ltr;margin:8px 0}
.lewis-row span{background:#fff;border:1px solid var(--line);border-radius:10px;padding:6px 10px;font-weight:700;font-size:18px;color:var(--phys-deep)}
.lw{display:inline-grid;grid-template-columns:auto auto auto;grid-template-rows:auto auto auto;align-items:center;justify-items:center;vertical-align:middle;direction:ltr;line-height:1;margin:0 4px;font-weight:700;color:var(--phys-deep)}
.lw i{font-style:normal;font-size:16px;letter-spacing:1px;min-width:4px;min-height:6px}
.lw .t{grid-column:2;grid-row:1}.lw .l{grid-column:1;grid-row:2;writing-mode:vertical-lr}.lw b{grid-column:2;grid-row:2;font-size:18px;padding:0 2px}.lw .r{grid-column:3;grid-row:2;writing-mode:vertical-lr}.lw .b{grid-column:2;grid-row:3}
.lewis-row .lw{background:#fff;border:1px solid var(--line);border-radius:10px;padding:4px 8px}
.formula .eq{white-space:normal;line-height:2}
html,body{overflow-x:hidden}
.legend{display:flex;gap:12px;justify-content:center;font-size:13px;margin-top:8px;flex-wrap:wrap}.legend span::before{content:"";display:inline-block;width:12px;height:12px;border-radius:3px;background:var(--k);margin-inline-end:5px;vertical-align:-1px}
.pt{display:grid;grid-template-columns:repeat(8,1fr);gap:4px;direction:ltr;background:#fff;border-radius:14px;padding:8px}
.pc{position:relative;aspect-ratio:1;border-radius:8px;background:rgba(138,79,125,var(--a));display:grid;place-items:center;overflow:hidden;color:var(--ink)}
.pc i{position:absolute;border-radius:50%;background:rgba(255,255,255,.55);max-width:90%;max-height:90%}
.pc b{position:relative;font-size:14px}.pc small{position:absolute;bottom:2px;font-size:9px;color:#333}
.pc.empty{background:none}
.ptb{display:grid;grid-template-columns:repeat(18,1fr);gap:2px;direction:ltr;background:#fff;border-radius:14px;padding:8px}
.pb{aspect-ratio:1;border-radius:3px;color:#fff;font-size:9px;display:grid;place-items:center;font-weight:700}.pb.empty{background:none}
.fpick{display:grid;gap:8px}.fpick small{display:block;color:var(--muted);font-size:13px;margin-bottom:4px}
.fc,.fa{display:flex;flex-wrap:wrap;gap:6px}.fc .chip,.fa .chip{padding:4px 10px}
.fout{background:#fff;border-radius:14px;padding:12px;margin-top:10px;text-align:center}
.fout .fx{font-size:13px;color:var(--muted);margin-bottom:6px}.fout .ff{font-size:30px;color:var(--phys-deep)}.fout .fn{font-weight:700;font-size:18px;margin-top:4px}
.polbar{display:flex;position:relative;direction:ltr;border-radius:10px;overflow:visible;margin-top:10px;font-size:12px;font-weight:700;color:#fff;text-align:center}
.polbar span{padding:10px 2px}.polbar span:nth-child(1){background:#8C9F4C;border-radius:10px 0 0 10px}.polbar span:nth-child(2){background:#1F7A8C}.polbar span:nth-child(3){background:#8A4F7D;border-radius:0 10px 10px 0}
.polbar i{position:absolute;top:-8px;bottom:-8px;width:4px;background:#F08A24;border-radius:3px;transition:left .3s;transform:translateX(-2px)}
.polscale{display:grid;grid-template-columns:.4fr 1.3fr 1.6fr auto;direction:ltr;font-size:11px;color:var(--muted);margin-top:4px}
.semh{font-size:16px;color:var(--muted);margin:18px 0 8px}
.bookc{border:1.5px solid var(--line);border-radius:20px;margin-bottom:12px;overflow:hidden;background:#fff}
.bookh{display:flex;align-items:center;gap:12px;width:100%;border:0;background:var(--bs);padding:14px 16px;text-align:right;cursor:pointer}
.bookh b{display:block;font-size:18px}.bookh small{color:var(--muted);font-size:13px}
.bico{width:44px;height:44px;border-radius:14px;background:var(--bc);color:#fff;display:grid;place-items:center;font-size:22px;flex:none}
.chev{margin-inline-start:auto;color:var(--muted)}
.bookc .chap{border:0;border-top:1px solid var(--line);border-radius:0;margin:0}
.beq{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;direction:ltr;background:#fff;border-radius:14px;padding:14px}
.bt{display:inline-flex;align-items:center;gap:4px;background:var(--phys-soft);border-radius:12px;padding:4px 8px}
.bt button{width:26px;height:26px;border-radius:8px;border:0;background:#fff;font-weight:700;cursor:pointer}
.bt b{font-size:20px;min-width:16px;text-align:center;color:var(--phys-deep)}.bt .eq{font-size:20px}
.bp{font-size:20px;font-weight:700;color:var(--muted)}
.bcount{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:8px;direction:ltr}
.bcount span{border-radius:10px;padding:4px 10px;font-size:14px}.okc{background:var(--good-bg)}.noc{background:var(--bad-bg)}
.mflow{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:8px;direction:ltr}
.mflow div{background:#fff;border-radius:12px;padding:6px 12px;text-align:center}.mflow small{display:block;color:var(--muted);font-size:12px}.mflow i{font-style:normal;font-size:12px;color:var(--muted)}

/* الموقع: زر الكود في الشريط، والدروس المقفلة */
.acct{margin-inline-start:auto;font-weight:700;font-size:14px;color:var(--ink);background:var(--sand-soft);border-radius:999px;padding:6px 14px;text-decoration:none;white-space:nowrap}
.lesson.lock{cursor:pointer}
a.btn{display:inline-block;text-decoration:none}
.card.masdar{display:flex;flex-direction:column;gap:2px;margin-top:14px;text-decoration:none;color:var(--ink);border:1.5px solid #8C9F4C;background:#F4F7EA}
.modal{position:fixed;inset:0;background:#0007;display:flex;align-items:flex-end;justify-content:center;z-index:50;padding:12px}
.modal .card{width:100%;max-width:520px;margin:0}
@media (min-width:600px){.modal{align-items:center}}
.modal textarea{width:100%;font:inherit;border:1.5px solid var(--line);border-radius:12px;padding:10px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.chipb{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:4px 14px;cursor:pointer;font-weight:600;font-size:14px}
.chipb.on{background:var(--phys);border-color:var(--phys);color:#fff}