html{color-scheme:light}
[hidden]{display:none!important}
img{max-width:100%}
/* Layout: sticky top bar, three views (student page, live room, teacher studio). Navy surfaces, one yellow action colour. */
:root{
  --bg:#eef2f8; --surface:#ffffff; --surface2:#e4ebf5; --fg:#0d2038; --muted:#56677f; --line:#cfd9e8;
  --hero:#0f2a4a; --hero-fg:#f2f6fc; --hero-muted:#a9bbd3; --hero-card:#173961;
  --accent:#f5c242; --accent-fg:#1d1700; --blue:#2f6fd6; --chip:#dbe7fa; --chip-fg:#1d4a95;
  --ok:#1f9d5c; --warn:#c98a0a; --bad:#d23c3c; --stage:#0a1829;
  --display:'Readex Pro','IBM Plex Sans Arabic',system-ui,sans-serif;
  --body:'IBM Plex Sans Arabic',system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#08131f; --surface:#0f2034; --surface2:#16304c; --fg:#eaf1fb; --muted:#97abc4; --line:#223c59;
  --hero:#0b2340; --hero-card:#12335a; --chip:#1a3a63; --chip-fg:#b7d0f5; --blue:#5b9bff;
  --ok:#3fd08a; --warn:#f0b73a; --bad:#ff6b6b; --stage:#050d17; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#08131f; --surface:#0f2034; --surface2:#16304c; --fg:#eaf1fb; --muted:#97abc4; --line:#223c59;
  --hero:#0b2340; --hero-card:#12335a; --chip:#1a3a63; --chip-fg:#b7d0f5; --blue:#5b9bff;
  --ok:#3fd08a; --warn:#f0b73a; --bad:#ff6b6b; --stage:#050d17; color-scheme:dark}

*{box-sizing:border-box}
body{background:var(--bg);color:var(--fg);font-family:var(--body);font-size:15px;line-height:1.55;margin:0}
html[lang="ar"] body{font-size:16px}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3{font-family:var(--display);margin:0;text-wrap:balance;line-height:1.25}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:1180px;margin-inline:auto;padding-inline:max(16px,env(safe-area-inset-left,0px)) max(16px,env(safe-area-inset-right,0px));padding-block:16px 40px}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--hero)}

/* top bar */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--hero);color:var(--hero-fg);border-bottom:1px solid rgba(255,255,255,.08)}
.bar-in{max-width:1180px;margin-inline:auto;padding:10px max(16px,env(safe-area-inset-right,0px)) 10px max(16px,env(safe-area-inset-left,0px));display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px}
.logo{font-family:var(--display);font-weight:700;font-size:20px;display:flex;align-items:center;gap:8px;margin-inline-end:auto}
.logo{text-decoration:none;color:inherit}
.logo .mark{width:44px;height:44px;flex:none}
.brand{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand b{font-size:21px;letter-spacing:.2px}
.brand small{font-size:12.5px;font-weight:500;color:var(--hero-muted);font-family:var(--body)}
@media (max-width:520px){.brand small{display:none}.logo .mark{width:38px;height:38px}}
.tabs{display:flex;gap:4px;background:rgba(255,255,255,.07);padding:4px;border-radius:12px}
.tabs button,.seg button{background:none;border:0;padding:7px 14px;border-radius:9px;color:var(--hero-muted);font-weight:500}
.tabs button[aria-selected="true"]{background:var(--accent);color:var(--accent-fg)}
.seg{display:flex;gap:2px;background:rgba(255,255,255,.07);padding:3px;border-radius:10px}
.seg button{padding:5px 10px;font-size:13px}
.seg button[aria-pressed="true"]{background:rgba(255,255,255,.18);color:#fff}
.icon-btn{background:rgba(255,255,255,.07);border:0;border-radius:10px;width:36px;height:36px;color:var(--hero-fg)}

/* hero */
.hero{background:var(--hero);color:var(--hero-fg);border-radius:20px;padding:24px;display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center}
.avatar{aspect-ratio:1;width:100%;border-radius:16px;overflow:hidden;background:#1d3d66;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding:14px;text-align:center}.avatar .bigmark{width:72%;height:72%;flex:none}
.hero h1{font-size:30px}
.role{font-size:18px;color:var(--hero-fg);margin:2px 0 6px;font-family:var(--display);font-weight:500}
.tag{color:var(--hero-muted);margin:0 0 14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.chip{background:var(--chip);color:var(--chip-fg);border-radius:99px;padding:3px 14px;font-size:13px;font-weight:500}
.hero .chip{background:#1a4170;color:#c6dbfa}
.btn{background:var(--accent);color:var(--accent-fg);border:0;border-radius:12px;padding:12px 20px;font-weight:600;display:inline-flex;align-items:center;gap:10px}
.btn.ghost{background:transparent;color:inherit;border:1px solid var(--line)}
.btn.small{padding:7px 14px;font-size:14px;border-radius:10px}
.btn.danger{background:var(--bad);color:#fff}
.btn:hover{filter:brightness(1.06)}

.actions{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-block:16px}
.action{background:var(--hero);color:var(--hero-fg);border-radius:16px;padding:18px;text-align:center;border:0;display:flex;flex-direction:column;align-items:center;gap:6px}
.action svg{width:34px;height:34px}
.action b{font-family:var(--display);font-weight:600}
.action span{color:var(--accent);font-size:14px;font-weight:600}

.sec-h{display:flex;justify-content:space-between;align-items:baseline;margin:28px 0 12px}
.sec-h h2{font-size:21px}
.sec-h a{color:var(--blue);font-size:14px;text-decoration:none;font-weight:500}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;min-width:0}
.card .art{aspect-ratio:16/9;display:block;width:100%}
.card .cb{padding:12px 14px 14px;display:flex;flex-direction:column;gap:4px;flex:1}
.card h3{font-size:16px}
.meta{color:var(--muted);font-size:13px}
.card .btn{margin-top:auto;align-self:flex-start}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--bad)}
.badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--bad);animation:pulse 1.6s infinite}
@keyframes pulse{50%{opacity:.35}}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px}
.slots{display:flex;flex-wrap:wrap;gap:8px;margin-block:12px}
.slot{border:1px solid var(--line);background:var(--surface2);border-radius:10px;padding:7px 12px;font-size:14px}
.slot[aria-pressed="true"]{background:var(--blue);color:#fff;border-color:var(--blue)}

/* live room */
.room{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px}
.stage{background:var(--stage);border-radius:18px;position:relative;aspect-ratio:16/9;overflow:hidden;color:#eaf1fb}
.stage .top{position:absolute;inset:12px 12px auto;display:flex;gap:8px;flex-wrap:wrap;align-items:center;z-index:2}
.pill{background:rgba(5,13,23,.7);border:1px solid rgba(255,255,255,.14);border-radius:99px;padding:3px 12px;font-size:12.5px;font-weight:600;display:inline-flex;gap:6px;align-items:center;color:#eaf1fb}
.pill.live{background:var(--bad);border-color:transparent}
.pill .dot{width:8px;height:8px;border-radius:50%;background:currentColor}
.pill.ok{color:#58e29c}.pill.warn{color:#f5c242}.pill.bad{color:#ff8080}
.stage .cam{position:absolute;inset:0;display:grid;place-items:center}
.stage .cam svg{width:42%;max-width:260px}
.stage .ring{position:absolute;width:170px;height:170px;border-radius:50%;border:3px solid var(--accent);opacity:0;animation:talk 1.8s infinite}
@keyframes talk{0%{transform:scale(.8);opacity:.7}100%{transform:scale(1.5);opacity:0}}
.stage.muted .ring{display:none}
.stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;background:#0e2238;cursor:crosshair}
.stage .reconnect{position:absolute;inset:0;background:rgba(5,13,23,.8);display:grid;place-items:center;z-index:3;text-align:center;font-weight:600}
.controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.ctl{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:9px 14px;font-weight:500;font-size:14px}
.ctl[aria-pressed="true"]{background:var(--blue);color:#fff;border-color:var(--blue)}
.ctl.rec[aria-pressed="true"]{background:var(--bad);border-color:var(--bad)}
.ctl svg{width:18px;height:18px}
.side{display:flex;flex-direction:column;min-width:0;height:clamp(420px,62vh,640px)}
.stabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:10px;overflow-x:auto}
.stabs button{background:none;border:0;border-bottom:3px solid transparent;padding:8px 10px;color:var(--muted);font-weight:500;white-space:nowrap}
.stabs button[aria-selected="true"]{color:var(--fg);border-color:var(--accent)}
.list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;min-height:0}
.msg{background:var(--surface2);border-radius:12px;padding:7px 11px;font-size:14px}
.msg b{font-weight:600;font-size:13px;color:var(--blue);display:block}
.msg.me{background:var(--chip);}
.row{display:flex;gap:8px;margin-top:10px}
.row input{flex:1;min-width:0;background:var(--surface2);border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:9px 12px;font:inherit}
.person{display:flex;align-items:center;gap:10px;background:var(--surface2);border-radius:12px;padding:7px 10px}
.person .av{width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:600;font-size:13px;flex:none}
.person span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar-opt{position:relative;background:var(--surface2);border-radius:10px;overflow:hidden;text-align:start;border:1px solid var(--line);padding:9px 12px;display:flex;justify-content:space-between;width:100%}
.bar-opt i{position:absolute;inset:0 auto 0 0;background:var(--chip);z-index:0;transition:width .4s}
html[dir="rtl"] .bar-opt i{inset:0 0 0 auto}
.bar-opt span{position:relative;z-index:1}
.tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;align-items:center}
.sw{width:24px;height:24px;border-radius:50%;border:2px solid var(--line);padding:0}
.sw[aria-pressed="true"]{outline:3px solid var(--accent)}

/* studio */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 16px}
.stat b{font-family:var(--display);font-size:28px;display:block;font-variant-numeric:tabular-nums}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.health{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-block:10px}
.health div{background:var(--surface2);border-radius:12px;padding:10px 12px}
.health b{display:block;font-family:var(--display);font-size:22px;font-variant-numeric:tabular-nums}
.spark{width:100%;height:70px;display:block}
.toggle{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.toggle:last-child{border:0}
.toggle small{display:block;color:var(--muted)}
.sw-t{width:44px;height:26px;border-radius:99px;background:var(--surface2);border:1px solid var(--line);position:relative;flex:none;padding:0}
.sw-t::after{content:"";position:absolute;top:3px;inset-inline-start:3px;width:18px;height:18px;border-radius:50%;background:var(--muted);transition:.2s}
.sw-t[aria-checked="true"]{background:var(--ok);border-color:var(--ok)}
.sw-t[aria-checked="true"]::after{inset-inline-start:21px;background:#fff}
.check{display:flex;gap:10px;align-items:flex-start;padding:7px 0}
.check input{margin-top:5px;accent-color:var(--ok);width:18px;height:18px}
.sess{display:flex;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.sess:last-child{border:0}
.sess time{font-family:var(--display);font-weight:600;min-width:58px;font-variant-numeric:tabular-nums}
.sess span{flex:1;min-width:0}
.feat{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:10px;margin-top:10px}
.feat div{background:var(--surface2);border-radius:12px;padding:10px 12px;font-size:14px}
.feat b{display:block;font-family:var(--display);font-weight:600;font-size:14.5px}
.toast{position:fixed;inset-inline:0;bottom:calc(20px + env(safe-area-inset-bottom,0px));margin-inline:auto;width:max-content;max-width:calc(100% - 32px);background:var(--fg);color:var(--bg);padding:10px 18px;border-radius:12px;z-index:40;font-weight:500}
.note{font-size:13px;color:var(--muted);margin-top:14px}

.arow{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;padding:10px 0;border-bottom:1px solid var(--line)}
.arow:last-child{border:0}
.arow .who{flex:1 1 170px;min-width:0}
.arow .who b{display:block}
.field{display:flex;flex-direction:column;gap:4px;margin-top:10px;font-size:13px;color:var(--muted)}
.field input{background:var(--surface2);border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:9px 12px;font:inherit}
.st{font-size:12.5px;font-weight:600;color:var(--ok)}
.stars{display:flex;gap:6px;direction:ltr;margin-top:4px}
.star{background:none;border:0;font-size:32px;line-height:1;color:var(--line);padding:2px 4px;border-radius:8px}
.star.on{color:var(--accent)}
.field textarea{background:var(--surface2);border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:9px 12px;font:inherit;resize:vertical}
.fbitem{background:var(--surface2);border-radius:12px;padding:10px 12px;margin-top:8px}
.fbitem p{margin:6px 0 0}
.gold{color:var(--warn);letter-spacing:2px;direction:ltr;display:inline-block}
@media (max-width:900px){.room{grid-template-columns:1fr}.side{height:420px}.two{grid-template-columns:1fr}}
@media (max-width:640px){.hero{grid-template-columns:1fr;text-align:start}.avatar{max-width:150px}.hero h1{font-size:25px}.actions{gap:8px}.action{padding:12px 6px}.tabs{order:3;width:100%}.tabs button{flex:1;padding-inline:6px}.health{grid-template-columns:1fr 1fr 1fr}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.health{grid-template-columns:repeat(3,minmax(0,1fr))}
.gate{display:flex;justify-content:center;padding:28px 0}
.gate-card{width:100%;max-width:440px;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px 22px;text-align:center}
.gate-mark{width:84px;height:84px;background:var(--hero);border-radius:20px;padding:12px}
.gate-card h1{font-size:24px;margin-top:12px}
.spaces{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px;text-align:start}
.spaces>span{grid-column:1/-1}
.space{display:flex;align-items:center;gap:10px;background:var(--surface2);border:2px solid transparent;border-radius:14px;padding:12px;color:var(--fg);font:inherit}
.space[aria-checked="true"]{border-color:var(--accent);background:var(--chip);color:var(--chip-fg)}
#gForm{text-align:start;margin-top:8px}
.gerr{color:var(--bad);font-size:14px;margin-top:8px}
.ghint{margin-top:16px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;justify-content:center;align-items:center}
.out{background:rgba(255,255,255,.1);color:var(--hero-fg);border:0;border-radius:10px;padding:7px 12px;font-weight:500}
body:not(.locked) #gate{display:none}
body.locked #tabs,body.locked #outBtn{display:none}
.tabs button[hidden]{display:none}

.stage .share{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#000}
.stage .top{z-index:4}
#bText[aria-pressed="true"]{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}
.tlayer{position:absolute;inset:0;z-index:2;pointer-events:none;overflow:hidden}
.titem{position:absolute;display:flex;align-items:flex-start;gap:4px;pointer-events:auto;cursor:grab;touch-action:none;user-select:none;border:1px dashed transparent;border-radius:6px;padding:2px 6px;font:22px/1.35 var(--body)}
.titem:hover,.titem.drag{border-color:rgba(255,255,255,.45)}
.titem.drag{cursor:grabbing}
.titem.edit{border-color:var(--accent);cursor:text;user-select:text;background:rgba(255,255,255,.06)}
.titem .tx{outline:0;min-width:40px;white-space:pre-wrap;word-break:break-word;max-width:60vw}
.titem .tdel{display:none;background:var(--bad);color:#fff;border:0;border-radius:50%;width:20px;height:20px;line-height:18px;font-size:15px;padding:0;margin-top:2px;cursor:pointer}
.titem:hover .tdel,.titem.edit .tdel{display:block}
.hw{padding:10px 0;border-bottom:1px solid var(--line)}.hw b{display:block}
.pay,.nt{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:10px 0;border-bottom:1px solid var(--line)}
.st{font-size:12.5px;font-weight:600;border-radius:99px;padding:3px 12px}
.st.ok{background:rgba(31,157,92,.15);color:var(--ok)}.st.warn{background:rgba(201,138,10,.18);color:var(--warn)}.st.bad{background:rgba(210,60,60,.15);color:var(--bad)}
.nt.unread{background:rgba(245,194,66,.12);margin-inline:-8px;padding-inline:8px;border-radius:8px}
.field select{background:var(--surface2);border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:9px 12px;font:inherit}
.pstage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none;background:#0e2238;cursor:crosshair}
.pstage .tlayer{z-index:2}
.tools .btn[aria-pressed="true"]{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}
.snbox{margin-top:10px}.snbox .row{margin-top:6px}
.snips{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px;align-items:center}
.sn{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:99px;background:var(--surface2);color:var(--fg);overflow:hidden;max-width:100%}
.sn button{background:none;border:0;color:inherit;font:inherit;padding:5px 12px;cursor:pointer;max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sn .x{padding:5px 9px;color:var(--bad);border-inline-start:1px solid var(--line)}
.boardlib{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:10px}
.boardlib input,.boardlib select{background:var(--surface2);border:1px solid var(--line);color:var(--fg);border-radius:10px;padding:7px 10px;font:inherit;min-width:0;flex:1 1 180px}
.titem.img{padding:0;border-radius:4px}
.titem.img img{display:block;width:100%;height:auto;pointer-events:none;border-radius:4px}
.titem .rz{position:absolute;right:-6px;bottom:-6px;width:16px;height:16px;border-radius:50%;background:var(--accent);border:2px solid #fff;cursor:nwse-resize;display:none;touch-action:none}
.titem.img:hover .rz{display:block}
.titem.img .tdel{position:absolute;top:-8px;right:-8px}
.blrow{display:flex;gap:8px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:8px 0;border-bottom:1px solid var(--line)}
.land-wrap{display:block}
.ld-hero{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:center;background:var(--hero);color:var(--hero-fg);border-radius:24px;padding:40px 32px}
.ld-copy h1{font-size:clamp(28px,5vw,44px);line-height:1.2;margin:14px 0 10px}
.ld-sub{color:var(--hero-muted);font-size:17px;max-width:46ch}
.ld-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.ld-cta .btn.ghost{color:var(--hero-fg);border-color:rgba(255,255,255,.35)}
.ld-visual{position:relative;display:grid;place-items:center;background:var(--hero-card);border-radius:22px;aspect-ratio:1;max-width:300px;width:100%;justify-self:center}
.ld-visual svg{width:66%}
.ld-live{position:absolute;top:14px;inset-inline-start:14px;background:rgba(5,13,23,.7);color:#fff;border-radius:99px;padding:3px 12px;font-size:12.5px;font-weight:700;display:inline-flex;gap:6px;align-items:center}
.ld-live i{width:8px;height:8px;border-radius:50%;background:var(--bad);animation:pulse 1.6s infinite}
.ld-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:16px 0}
.ld-stats div{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px;text-align:center}
.ld-stats b{display:block;font-family:var(--display);font-size:28px}
.ld-stats span{color:var(--muted);font-size:13px}
.land-wrap h2{font-size:26px;margin:36px 0 14px;text-align:center}
.ld-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ld-grid.four{grid-template-columns:repeat(4,1fr)}.ld-grid.three{grid-template-columns:repeat(3,1fr)}
.ld-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;color:var(--fg)}
.ld-card svg{color:var(--blue)}
.ld-card h3{font-size:17px;margin:8px 0 4px}.ld-card p{color:var(--muted);font-size:14.5px}
.ld-n{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-fg);font-weight:700}
.ld-faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:8px}
.ld-faq details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.ld-faq summary{font-weight:600;cursor:pointer}.ld-faq p{color:var(--muted);margin-top:8px}
.ld-end{text-align:center;background:var(--hero);color:var(--hero-fg);border-radius:24px;padding:10px 20px 34px;margin-top:36px}
.ld-foot{text-align:center;color:var(--muted);font-size:13px;margin:18px 0}
body.locked main>section:not(#gate):not(#landing){display:none!important}
body.land main>section:not(#landing){display:none!important}
body:not(.land) #landing{display:none}
body:not(.land) #loginBtn{display:none}
body.land #langs~#outBtn{display:none}
@media (max-width:820px){.ld-hero{grid-template-columns:1fr;padding:28px 20px}.ld-visual{max-width:200px}.ld-stats{grid-template-columns:1fr 1fr}.ld-grid,.ld-grid.four,.ld-grid.three{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.ld-grid,.ld-grid.four,.ld-grid.three{grid-template-columns:1fr}}