:root{--bg:#f5f4ff;--card:#fff;--tx:#1b1740;--mu:#6b6890;--pr:#5b4bdb;--or:#ff7a59;--bd:#e4e1fa;--ok:#16a34a;--bad:#dc2626;--th:#ece9ff;--side:240px;color-scheme:light dark}
@media(prefers-color-scheme:dark){:root{--bg:#0f1226;--card:#1b1f3a;--tx:#f1f1fb;--mu:#a3a6c8;--bd:#2d3158;--th:#2a2e55;--pr:#7c6cf5}}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--tx);font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-text-size-adjust:100%;overflow-x:hidden}
img{max-width:100%}
a{color:var(--pr)}
button,input,select,textarea{font:inherit;color:inherit}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--bd);border-radius:10px;background:var(--card);margin:4px 0;font-size:16px}
textarea{resize:vertical}
label{font-size:12px;color:var(--mu);display:block;margin-top:6px}
.load{text-align:center;margin-top:30vh;color:var(--mu)}
.mu{color:var(--mu)}.sm{font-size:12px}.c{text-align:center}.grow{flex:1;min-width:0}
.row{display:flex;gap:8px;align-items:center}.row>*{min-width:0}
.row.f>*{flex:1}
.acts{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.btn{background:var(--pr);color:#fff;border:0;border-radius:10px;padding:10px 14px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block;text-align:center;min-height:38px}
.btn:disabled{opacity:.4;cursor:not-allowed}.btn.o{background:var(--th);color:var(--tx)}.btn.sm{padding:6px 11px;font-size:13px;min-height:32px}.btn.w{width:100%}
.lnk{border:0;background:none;color:var(--pr);cursor:pointer;font-size:13px;padding:4px}
.ic{border:0;background:none;font-size:22px;cursor:pointer;padding:4px 8px}
.tag{font-size:11px;padding:2px 8px;border-radius:99px;display:inline-block;white-space:nowrap}.tag.p{background:#fef3c7;color:#92400e}.tag.a{background:#dcfce7;color:#166534}.tag.r{background:#fee2e2;color:#991b1b}
.chip{display:inline-block;background:var(--th);border-radius:99px;padding:3px 11px;margin:2px 4px 2px 0;font-size:12px;cursor:pointer;border:0}
.chip.on{background:var(--pr);color:#fff}
.box{background:var(--card);border:1px solid var(--bd);border-radius:16px;padding:14px;margin:12px 0}
.warn{background:#fee2e2;color:#991b1b;padding:9px 12px;border-radius:10px;font-size:13px;margin:8px 0}
.empty{text-align:center;padding:40px 16px;font-size:44px}.empty p{font-size:15px;color:var(--mu);margin:8px 0}
h3{margin:14px 0 6px}
/* avatars */
.av{display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff;font-weight:700;overflow:hidden;border-radius:50%}
.av img{width:100%;height:100%;object-fit:cover}
.av.xs{width:26px;height:26px;font-size:12px}.av.sm{width:40px;height:40px;font-size:17px}.av.md{width:52px;height:52px;font-size:22px}.av.xl{width:104px;height:104px;font-size:42px}
/* layout */
#app{min-height:100vh}
#side{display:none}
#wrap{min-height:100vh}
header.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:8px;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px)}
header.top h1{font-size:19px;margin:0}
header.top select{width:auto;margin:0;padding:5px 8px;font-size:13px}
.logo{font-weight:800;font-size:19px}.logo span{color:var(--pr)}
#main{max-width:1100px;margin:0 auto;padding:0 14px calc(92px + env(safe-area-inset-bottom))}
#nav{position:fixed;left:0;right:0;bottom:0;z-index:6;display:flex;background:var(--card);border-top:1px solid var(--bd);padding-bottom:env(safe-area-inset-bottom)}
#nav button{flex:1;border:0;background:none;color:var(--mu);padding:7px 0 8px;font-size:10.5px;cursor:pointer;position:relative}
#nav button span{display:block;font-size:20px;line-height:1.2}#nav button.on{color:var(--pr);font-weight:700;background:var(--th)}
.bdg{position:absolute;top:2px;left:55%;background:var(--bad);color:#fff;border-radius:99px;font-size:10px;padding:0 5px;font-weight:700}
#side .nb{display:flex;align-items:center;gap:10px;width:100%;border:0;background:none;padding:10px 12px;border-radius:12px;color:var(--tx);cursor:pointer;font-size:15px;text-align:left;position:relative}
#side .nb:hover{background:var(--th)}#side .nb.on{background:var(--pr);color:#fff;font-weight:600}#side .nb .bdg{position:static;margin-left:auto}
/* auth */
.auth{min-height:100vh;display:grid;place-items:center;padding:16px;background:linear-gradient(135deg,#5b4bdb,#a855f7 60%,#ff7a59)}
.ac{width:100%;max-width:400px;background:var(--card);border-radius:22px;padding:26px;box-shadow:0 14px 50px #0004}
.ac h2{margin:14px 0 2px}
/* home */
.hp{display:grid;gap:12px;margin-top:4px;grid-template-columns:minmax(0,1fr)}.hp>*{min-width:0}
.hero{background:linear-gradient(135deg,#5b4bdb,#a855f7 60%,#ff7a59);color:#fff;border-radius:22px;padding:20px}
.hero h1{margin:0;font-size:26px;line-height:1.15}.hero p{margin:6px 0 14px;opacity:.92}.hero input{margin:0;border:0;color:#1b1740;background:#fff}
.promo{overflow:hidden;border-radius:18px}.promo>div{display:flex;transition:transform .5s}
.pm{flex:0 0 100%;padding:16px;color:#fff;min-height:128px}
.code{border:2px dashed #fff;border-radius:8px;padding:2px 10px;font-weight:800;letter-spacing:1px;display:inline-block;cursor:pointer}
.dots{display:flex;justify-content:center;gap:6px;margin:8px 0}.dots i{width:7px;height:7px;border-radius:9px;background:var(--bd)}.dots i.on{background:var(--pr);width:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-top:8px}
.gc{background:var(--card);border-radius:18px;padding:14px;cursor:pointer;border:1px solid var(--bd);transition:transform .15s}.gc:hover{transform:translateY(-2px)}
.gc .ge{font-size:30px}.gc b{display:block;margin-top:4px}.gc span{font-size:12px;color:var(--mu)}
.sp{display:flex;gap:8px;overflow-x:auto;padding:4px 0 8px;scrollbar-width:thin}
.spc{flex:0 0 130px;height:104px;border-radius:14px;color:#fff;padding:8px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;cursor:pointer}
.spc .em{position:absolute;top:6px;right:10px;font-size:34px}.spc small{opacity:.9}
.sh{display:flex;justify-content:space-between;align-items:center;margin:14px 0 4px}
/* feed + cards */
.seg{display:flex;background:var(--th);border-radius:12px;padding:3px;margin:8px 0;max-width:420px}
.seg button{flex:1;border:0;background:none;padding:8px;border-radius:10px;color:var(--mu);font-weight:600;cursor:pointer}.seg button.on{background:var(--card);color:var(--pr)}
.bn{background:linear-gradient(135deg,var(--pr),#a855f7);color:#fff;border-radius:16px;padding:14px;margin:6px 0 10px}.bn b{font-size:17px;display:block;margin-bottom:8px}
.cards{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(min(100%,310px),1fr))}.cards .box{margin:0}
.feed{columns:1;column-gap:14px}
.fp{background:var(--card);border-radius:18px;margin:0 0 14px;border:1px solid var(--bd);overflow:hidden;break-inside:avoid}
.fh{display:flex;gap:10px;align-items:center;padding:10px 12px}
.fimg{width:100%;aspect-ratio:4/5;max-height:460px;object-fit:cover;display:flex;align-items:center;justify-content:center;font-size:100px;position:relative;color:#fff;cursor:pointer}
.fimg small{position:absolute;bottom:10px;left:12px;font-size:13px;background:#0006;padding:3px 10px;border-radius:99px}
.fa{display:flex;gap:14px;align-items:center;padding:10px 12px;font-size:16px;flex-wrap:wrap}.fa>span{cursor:pointer}.fa .rt{margin-left:auto}
.fc{padding:0 12px 10px;font-size:14px;word-break:break-word}.cmts{padding:0 12px 12px}
/* chat */
.cw{display:grid;grid-template-columns:1fr;height:calc(100dvh - 150px);min-height:360px}
.cl{overflow:auto}.cl.hide,.ct.hide{display:none}
.li{display:flex;gap:12px;align-items:center;padding:10px;background:var(--card);border-radius:14px;margin:6px 0;cursor:pointer;border:1px solid transparent}.li.on{border-color:var(--pr)}.li p{margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ct{display:flex;flex-direction:column;min-height:0}
.chh{display:flex;align-items:center;gap:10px;padding:4px 0 8px}
.msgs{flex:1;overflow:auto;display:flex;flex-direction:column;gap:6px;padding:6px 0}
.b{max-width:80%;padding:8px 12px;border-radius:16px;background:var(--th);align-self:flex-start;word-break:break-word;white-space:pre-wrap}.b.m{background:var(--pr);color:#fff;align-self:flex-end}
.inp{display:flex;gap:8px}.inp input{margin:0}
/* misc */
svg.map{width:100%;height:auto;border-radius:14px;background:#bfe3f5;display:block}.land{fill:#d8e8c0;stroke:#9bb77a;stroke-width:.2}
.pin{cursor:pointer}.pin circle{fill:var(--or);stroke:#fff;stroke-width:.4}
.bar{height:10px;border-radius:9px;background:var(--th);overflow:hidden;margin:6px 0}.bar i{display:block;height:100%;background:var(--pr)}
.two{display:grid;gap:0 14px;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));align-items:start}
.plc{border:2px solid var(--bd)}.plc.cur{border-color:var(--pr)}
.gg{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin:8px 0}.gg div{position:relative}.gg img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;cursor:pointer;display:block}
.gg .x{position:absolute;top:4px;right:4px;background:#000a;color:#fff;border:0;border-radius:99px;width:26px;height:26px;cursor:pointer}
.lb{position:fixed;inset:0;background:#000d;display:flex;align-items:center;justify-content:center;z-index:30;cursor:zoom-out}.lb img{max-width:96%;max-height:92%;border-radius:10px}
.st{font-size:32px;cursor:pointer;letter-spacing:4px}
details summary{cursor:pointer;font-weight:700}
#toast{position:fixed;left:50%;bottom:calc(88px + env(safe-area-inset-bottom));transform:translateX(-50%);background:#111e;color:#fff;padding:9px 18px;border-radius:99px;font-size:14px;display:none;z-index:40;max-width:92%;text-align:center}
.back{display:none}
.hide-m{display:none}
/* tablet */
@media(min-width:600px){
 #main{padding-left:20px;padding-right:20px}
 .feed{columns:2}
 .gg{grid-template-columns:repeat(4,1fr)}
 .hp{grid-template-columns:minmax(0,1.3fr) minmax(0,1fr)}
 .hp>div:last-child{display:flex;flex-direction:column}.hp .promo{flex:1}.hp .promo>div{height:100%}.pm{height:100%}
 .grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}
}
/* laptop / desktop: sidebar replaces bottom bar */
@media(min-width:900px){
 #side{display:flex;flex-direction:column;gap:2px;position:fixed;top:0;bottom:0;left:0;width:var(--side);padding:18px 12px;background:var(--card);border-right:1px solid var(--bd);overflow:auto;z-index:7}
 #side .logo{padding:6px 12px 16px}
 #nav{display:none}#wrap{margin-left:var(--side)}#main{padding-bottom:40px}
 #bk{display:none!important}
 .cw{grid-template-columns:320px 1fr;gap:16px;height:calc(100vh - 110px)}
 .cl.hide,.ct.hide{display:flex}.cl.hide{display:block}
 .ct .back{display:none!important}
 #toast{bottom:28px}
 .gg{grid-template-columns:repeat(5,1fr)}
 .hide-m{display:block}
}
@media(min-width:1280px){.feed{columns:3}}
@media(max-width:899px){.cw .ct.hide,.cw .cl.hide{display:none}.back{display:inline-block}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}