:root{--ink:#08090D;--surface:#11131A;--raise:#181B25;--line:rgba(255,255,255,.07);--tx:#F4F3FA;--mut:rgba(244,243,250,.55);--v:#8B5CF6;--vg:#A78BFA;--vd:#6D28D9;--glass:rgba(17,19,26,.7);--glow:rgba(139,92,246,.25);--red:#F43F5E;color-scheme:dark}
[data-theme=light]{--ink:#F5F4FB;--surface:#FFFFFF;--raise:#EFEDF8;--line:rgba(20,18,40,.09);--tx:#16132A;--mut:rgba(22,19,42,.58);--glass:rgba(255,255,255,.75);--glow:rgba(139,92,246,.18);color-scheme:light}
*{box-sizing:border-box;margin:0}
html,body{height:100%}
body{font-family:Sora,system-ui,sans-serif;background:var(--ink);color:var(--tx);transition:background .35s,color .35s;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--vg);outline-offset:2px}
.hide{display:none!important}
svg.i{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.glass{background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--line)}
.btn{border-radius:12px;background:linear-gradient(90deg,var(--vd),var(--v));color:#fff;padding:13px 18px;font-weight:600;transition:filter .2s,transform .15s;box-shadow:0 8px 24px -10px var(--v)}
.btn:hover{filter:brightness(1.12)}.btn:active{transform:scale(.97)}
.btn.sm{padding:8px 16px;font-size:13px;border-radius:999px}
.ghost{border-radius:12px;border:1px solid var(--line);padding:12px 18px;font-weight:500;transition:background .2s,border-color .2s;display:flex;align-items:center;justify-content:center;gap:10px}
.ghost:hover{background:var(--raise);border-color:var(--v)}
.ghost.on{background:var(--raise);color:var(--mut)}
.input{width:100%;border-radius:12px;background:var(--ink);border:1px solid var(--line);padding:13px 16px;outline:0;transition:border-color .2s,box-shadow .2s}
.input:focus{border-color:var(--v);box-shadow:0 0 0 3px var(--glow)}
.av{display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--vd),var(--vg));color:#fff;font-weight:600;flex:none}
.av.ring{box-shadow:0 0 0 2px var(--ink),0 0 0 4px var(--vg)}
.pic{background:linear-gradient(135deg,hsl(var(--h) 45% 24%),hsl(calc(var(--h) + 45) 58% 44%));position:relative;overflow:hidden}
.pic::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at 70% 25%,rgba(255,255,255,.28),transparent),radial-gradient(40% 40% at 20% 85%,rgba(0,0,0,.35),transparent)}
.pic span{position:absolute;left:14px;bottom:12px;font-size:12px;padding:5px 11px;border-radius:99px;background:rgba(0,0,0,.4);color:#fff;backdrop-filter:blur(6px)}
/* AUTH */
#auth{min-height:100%;display:grid;place-items:center;padding:20px;background:radial-gradient(60% 50% at 50% 0%,var(--glow),transparent),var(--ink);position:relative;overflow:hidden}
#auth .orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.45;animation:float 14s ease-in-out infinite}
.o1{width:340px;height:340px;background:var(--vd);left:-80px;bottom:-60px}.o2{width:260px;height:260px;background:var(--vg);right:-60px;top:20%;animation-delay:-6s!important}
@keyframes float{50%{transform:translate(30px,-40px) scale(1.1)}}
.card{position:relative;width:100%;max-width:420px;border-radius:28px;padding:34px;display:grid;gap:14px;animation:rise .6s cubic-bezier(.2,.8,.2,1)}
@keyframes rise{from{opacity:0;transform:translateY(24px) scale(.98)}}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:20px;letter-spacing:.06em}
.brand svg{width:42px;height:42px}
.card h1{font-size:24px;font-weight:600}.card p.sub{color:var(--mut);font-size:14px;margin-top:-8px}
.msg{font-size:13px;min-height:18px}.msg.err{color:var(--red)}.msg.ok{color:var(--vg)}
.or{display:flex;align-items:center;gap:12px;color:var(--mut);font-size:12px}.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}
.lnk{color:var(--vg);font-size:13px;justify-self:center}.lnk:hover{text-decoration:underline}
/* APP SHELL */
#app{display:flex;max-width:1280px;margin:auto;min-height:100%}
aside.side{position:sticky;top:0;height:100vh;width:250px;padding:20px 14px;display:flex;flex-direction:column;gap:4px;flex:none}
aside.side .brand{padding:0 12px 18px}
.nv{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:14px;color:var(--mut);font-weight:500;font-size:15px;text-align:left;position:relative;transition:background .2s,color .2s}
.nv:hover{color:var(--tx);background:var(--surface)}
.nv.act{color:var(--tx);background:color-mix(in srgb,var(--v) 18%,transparent)}
.nv.act svg{stroke:var(--vg)}
.bdg{margin-left:auto;background:var(--v);color:#fff;font-size:11px;border-radius:99px;padding:2px 8px}
.side .sp{flex:1}
main{flex:1;min-width:0;border-inline:1px solid var(--line);min-height:100vh}
.view{animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}}
.top{display:flex;align-items:center;gap:10px;padding:18px 20px 10px}
.top h2{font-size:22px;font-weight:600;flex:1}
.ib{width:40px;height:40px;border-radius:50%;background:var(--surface);display:grid;place-items:center;border:1px solid var(--line);transition:border-color .2s,transform .15s}
.ib:hover{border-color:var(--v)}.ib:active{transform:scale(.9)}
.mob{display:none}
.rail{width:310px;padding:20px 18px;position:sticky;top:0;height:100vh;overflow:auto;flex:none}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:16px;margin-bottom:16px}
.panel h3{font-size:15px;margin-bottom:10px}
.row{display:flex;align-items:center;gap:12px;padding:8px 0}
.row .nm{flex:1;min-width:0;font-size:14px}.row .nm b{display:block;font-weight:600}.row .nm small{color:var(--mut);font-size:12px}
.fol{border:1px solid var(--v);color:var(--vg);border-radius:99px;padding:6px 14px;font-size:13px;font-weight:600;transition:all .2s}
.fol.on{background:var(--raise);border-color:var(--line);color:var(--mut)}
.stories{display:flex;gap:16px;overflow-x:auto;padding:6px 20px 16px;scrollbar-width:none}
.stories button{display:grid;gap:6px;justify-items:center;font-size:12px;color:var(--mut);flex:none;transition:transform .2s}
.stories button:hover{transform:translateY(-3px)}
.comp{margin:0 20px 16px;display:flex;gap:12px;align-items:center;padding:12px;border-radius:20px;background:var(--surface);border:1px solid var(--line)}
.comp button.f{flex:1;text-align:left;color:var(--mut);padding:10px 14px;border-radius:99px;background:var(--ink)}
.feed{display:grid;gap:18px;padding:0 20px 28px}
.post{background:var(--surface);border:1px solid var(--line);border-radius:26px;padding:14px;transition:box-shadow .3s}
.post:hover{box-shadow:0 18px 40px -24px var(--v)}
.ph{display:flex;align-items:center;gap:12px;padding-bottom:12px}
.ph .nm{flex:1;font-size:14px}.ph small{display:block;color:var(--mut);font-size:12px}
.post .pic{height:min(56vw,340px);border-radius:18px}
.act-bar{display:flex;gap:8px;padding:12px 0 8px;flex-wrap:wrap}
.pill{display:flex;align-items:center;gap:7px;padding:8px 14px;border-radius:99px;background:var(--ink);font-size:13px;transition:transform .15s,color .2s}
.pill:hover{color:var(--vg)}.pill:active{transform:scale(.92)}
.pill.liked{color:var(--red)}.pill.liked svg{fill:var(--red);stroke:var(--red);animation:pop .35s}
.pill.saved svg{fill:var(--vg);stroke:var(--vg)}
@keyframes pop{50%{transform:scale(1.4)}}
.cap{font-size:14px;line-height:1.6;color:var(--mut)}.cap b{color:var(--tx)}
.cm{margin-top:12px;display:grid;gap:8px;font-size:13px}
.cm div{background:var(--ink);padding:9px 13px;border-radius:14px;color:var(--mut)}.cm b{color:var(--tx)}
.cm form{display:flex;gap:8px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:0 20px 24px}
.grid .pic{aspect-ratio:1;border-radius:14px;transition:transform .25s}.grid .pic:hover{transform:scale(1.03)}
.chips{display:flex;gap:8px;overflow-x:auto;padding:0 20px 14px;scrollbar-width:none}
.chip{padding:8px 16px;border-radius:99px;background:var(--surface);border:1px solid var(--line);font-size:13px;flex:none;color:var(--mut)}
.chip.on{background:var(--v);color:#fff;border-color:var(--v)}
.search{margin:0 20px 14px;display:block}
.reels{height:calc(100vh - 4px);overflow-y:auto;scroll-snap-type:y mandatory;scrollbar-width:none}
.reel{height:calc(100vh - 4px);scroll-snap-align:start;position:relative;display:block}
.reel .pic{position:absolute;inset:0;border-radius:0}
.reel .sh{position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.8),transparent 55%,rgba(0,0,0,.35));color:#fff}
.reel .rl{position:absolute;right:16px;bottom:40px;display:grid;gap:20px;justify-items:center;font-size:12px;color:#fff}
.reel .ri{position:absolute;left:18px;right:84px;bottom:40px;color:#fff;display:grid;gap:10px;font-size:14px}
.reel .rl .pill{background:rgba(0,0,0,.35);padding:12px;color:#fff;flex-direction:column;gap:3px;border-radius:50%}
.chat{display:grid;grid-template-columns:280px 1fr;height:calc(100vh - 70px)}
.chat .lst{border-right:1px solid var(--line);overflow:auto;padding:0 8px}
.chat .rw{display:flex;gap:12px;align-items:center;padding:12px;border-radius:14px;width:100%;text-align:left;font-size:14px}
.chat .rw:hover,.chat .rw.act{background:var(--surface)}.chat .rw small{display:block;color:var(--mut);font-size:12px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thr{display:flex;flex-direction:column;min-width:0}
.thr .bd{flex:1;overflow:auto;padding:18px;display:flex;flex-direction:column;gap:10px}
.bub{max-width:75%;padding:10px 15px;border-radius:18px;font-size:14px;background:var(--surface);border:1px solid var(--line);animation:fade .25s}
.bub.me{align-self:flex-end;background:linear-gradient(90deg,var(--vd),var(--v));color:#fff;border:0}
.thr form{display:flex;gap:10px;padding:14px;border-top:1px solid var(--line)}
.back{display:none}
.nt{display:flex;gap:12px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line);font-size:14px}
.nt.new{background:color-mix(in srgb,var(--v) 9%,transparent)}.nt small{color:var(--mut);display:block;font-size:12px}
.cover{height:170px}
.pf{display:grid;justify-items:center;margin-top:-48px;padding:0 20px;gap:4px;text-align:center}
.pf .av{box-shadow:0 0 0 4px var(--ink)}
.stats{display:flex;gap:34px;margin:12px 0;text-align:center}.stats b{display:block;font-size:19px}.stats small{color:var(--mut);font-size:12px}
.tabs{display:flex;justify-content:space-around;border-bottom:1px solid var(--line);margin:18px 0 14px}
.tabs button{padding:10px 18px 12px;color:var(--mut);border-bottom:2px solid transparent}.tabs .on{color:var(--tx);border-color:var(--vg)}
.set{display:flex;align-items:center;gap:14px;padding:16px 20px;border-bottom:1px solid var(--line);font-size:14px}
.set div{flex:1}.set small{display:block;color:var(--mut);font-size:12px;margin-top:2px}
.sw{width:46px;height:26px;border-radius:99px;background:var(--raise);border:1px solid var(--line);position:relative;transition:background .25s;flex:none}
.sw::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .25s;box-shadow:0 2px 6px rgba(0,0,0,.3)}
.sw[aria-checked=true]{background:var(--v)}.sw[aria-checked=true]::after{transform:translateX(20px)}
.create{padding:0 20px 24px;display:grid;gap:14px}
.create .pic{height:220px;border-radius:20px}
.hues{display:flex;gap:10px}.hues button{width:32px;height:32px;border-radius:50%;background:hsl(var(--h) 60% 50%);border:2px solid transparent}.hues .on{border-color:var(--tx);transform:scale(1.15)}
textarea.input{min-height:100px;resize:vertical}
#story{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.92);display:grid;place-items:center;animation:fade .25s}
#story .sc{position:relative;width:min(92vw,400px);height:min(86vh,700px);border-radius:24px;color:#fff;display:flex;flex-direction:column;justify-content:space-between;padding:18px}
#story .pic{position:absolute;inset:0;border-radius:24px}
#story .sc>*{position:relative}
.bar{height:3px;border-radius:9px;background:rgba(255,255,255,.3);overflow:hidden}.bar i{display:block;height:100%;background:#fff;animation:prog 5s linear forwards}
@keyframes prog{from{width:0}to{width:100%}}
#toast{position:fixed;left:50%;bottom:90px;transform:translate(-50%,20px);background:var(--surface);border:1px solid var(--v);padding:11px 20px;border-radius:99px;font-size:13px;opacity:0;pointer-events:none;transition:all .3s;z-index:60}
#toast.show{opacity:1;transform:translate(-50%,0)}
nav.bot{display:none}
@media(max-width:1100px){.rail{display:none}}
@media(max-width:860px){
 aside.side{display:none}.mob{display:flex}
 main{border:0;padding-bottom:84px}
 nav.bot{display:flex;position:fixed;inset:auto 0 0 0;z-index:20;justify-content:space-around;align-items:center;padding:8px 8px calc(10px + env(safe-area-inset-bottom,0px));border-radius:24px 24px 0 0}
 nav.bot .nv{flex-direction:column;gap:3px;font-size:11px;padding:6px 10px;background:none!important}
 nav.bot .nv.act{color:var(--vg)}
 nav.bot .plus{width:54px;height:54px;border-radius:50%;margin-top:-30px;display:grid;place-items:center;background:linear-gradient(135deg,var(--vd),var(--vg));color:#fff;box-shadow:0 0 26px rgba(139,92,246,.6)}
 .reels,.reel{height:calc(100vh - 84px)}
 .chat{grid-template-columns:1fr;height:calc(100vh - 150px)}.chat.open .lst{display:none}.chat:not(.open) .thr{display:none}.back{display:grid}
 .stories,.chips{padding-inline:16px}.feed,.grid,.create{padding-inline:12px}.comp{margin-inline:12px}.search{margin-inline:12px}
}
@media(max-width:480px){.card{padding:26px 22px}.stats{gap:22px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
.pic img,.pic video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.grid button{display:block;padding:0}
#modal{position:fixed;inset:0;z-index:55;background:rgba(0,0,0,.72);backdrop-filter:blur(6px);display:grid;place-items:center;padding:16px;overflow:auto;animation:fade .25s}
#modal .mb{width:min(94vw,640px);max-height:92vh;overflow:auto;border-radius:26px;background:var(--surface);border:1px solid var(--line)}
#modal .post{border:0}
.mx{position:sticky;top:10px;margin:10px 10px -50px auto;z-index:3;background:rgba(0,0,0,.5);color:#fff}
select.input{appearance:none}
button[data-a=zoom]{border-radius:50%;cursor:zoom-in}