:root{
 --bg:#07070f;--ink:#eef0ff;--mut:#9aa0c3;--glass:rgba(255,255,255,.07);--glass2:rgba(255,255,255,.11);--line:rgba(255,255,255,.13);
 --a:#7c5cff;--b:#22d3ee;--c:#34d399;--pink:#ff5cae;--amber:#fbbf24;--red:#ff5d73;--shadow:0 20px 60px rgba(0,0,0,.45);
 --field:rgba(255,255,255,.06);--on:#fff;--blob:.55
}
[data-theme=light]{
 --bg:#f2f4ff;--ink:#14163a;--mut:#5b6190;--glass:rgba(255,255,255,.66);--glass2:rgba(255,255,255,.9);--line:rgba(60,70,160,.16);
 --shadow:0 20px 50px rgba(60,70,160,.18);--field:rgba(255,255,255,.8);--blob:.38
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%;min-height:100vh;transition:background .4s,color .4s;overflow-x:hidden}
/* aurora */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;background:var(--bg);transition:background .4s}
.aurora i{position:absolute;border-radius:50%;filter:blur(70px);opacity:var(--blob);will-change:transform}
.aurora i:nth-child(1){width:60vmax;height:60vmax;left:-15vmax;top:-20vmax;background:radial-gradient(circle,var(--a),transparent 65%);animation:f1 22s ease-in-out infinite alternate}
.aurora i:nth-child(2){width:55vmax;height:55vmax;right:-18vmax;top:10vh;background:radial-gradient(circle,var(--b),transparent 65%);animation:f2 26s ease-in-out infinite alternate}
.aurora i:nth-child(3){width:50vmax;height:50vmax;left:15vw;bottom:-25vmax;background:radial-gradient(circle,var(--pink),transparent 65%);animation:f3 30s ease-in-out infinite alternate}
.aurora i:nth-child(4){width:35vmax;height:35vmax;right:10vw;bottom:-10vmax;background:radial-gradient(circle,var(--c),transparent 65%);animation:f1 34s ease-in-out infinite alternate-reverse;opacity:calc(var(--blob)*.7)}
@keyframes f1{to{transform:translate(12vmax,8vmax) scale(1.15)}}
@keyframes f2{to{transform:translate(-14vmax,10vmax) scale(.9) rotate(30deg)}}
@keyframes f3{to{transform:translate(10vmax,-12vmax) scale(1.2)}}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.06;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}
.glass{background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(22px) saturate(160%);-webkit-backdrop-filter:blur(22px) saturate(160%);box-shadow:var(--shadow)}
/* demo notice */
.demo-pill{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--mut);padding:6px 12px;border-radius:99px;background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);line-height:1.3}
.demo-pill b{color:var(--amber);letter-spacing:.08em;font-size:10.5px;border:1px solid rgba(251,191,36,.5);padding:2px 7px;border-radius:99px}
.demo-strip{text-align:center;padding:8px 14px 0;padding-top:max(8px,env(safe-area-inset-top))}
/* brand */
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand img{width:40px;height:40px;border-radius:12px;box-shadow:0 8px 24px rgba(124,92,255,.5);animation:pop .8s cubic-bezier(.2,1.4,.4,1) both}
.word{font-weight:800;font-size:26px;letter-spacing:-.04em}
.word span{background:linear-gradient(90deg,var(--a),var(--b) 55%,var(--c));-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:shine 6s linear infinite}
@keyframes shine{to{background-position:-200% 0}}
@keyframes pop{from{transform:scale(.4) rotate(-20deg);opacity:0}}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.rise{animation:rise .7s cubic-bezier(.2,.8,.2,1) both}
.d1{animation-delay:.08s}.d2{animation-delay:.16s}.d3{animation-delay:.24s}.d4{animation-delay:.32s}
/* controls */
.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:var(--glass);color:var(--ink);display:inline-grid;place-items:center;font-size:18px;cursor:pointer;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:transform .2s,background .2s}
.icon-btn:hover{background:var(--glass2);transform:translateY(-1px)}.icon-btn:active{transform:scale(.92)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;color:#fff;font:inherit;font-weight:700;font-size:16px;padding:14px 20px;border-radius:14px;cursor:pointer;text-decoration:none;background:linear-gradient(120deg,var(--a),#5b7cff 45%,var(--b));background-size:160% 100%;box-shadow:0 10px 28px rgba(124,92,255,.45);transition:transform .2s,box-shadow .2s,background-position .5s}
.btn:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:0 14px 34px rgba(124,92,255,.55)}
.btn:active{transform:scale(.97)}
.btn:disabled{opacity:.6;cursor:wait}
.btn.full{width:100%;margin-top:18px}
.btn.ghost{background:var(--glass);color:var(--ink);border:1px solid var(--line);box-shadow:none}
.btn.danger{background:linear-gradient(120deg,#ff5d73,#ff3d81);box-shadow:0 10px 24px rgba(255,61,129,.35)}
.btn.sm{padding:9px 14px;font-size:14px;border-radius:11px}
label{display:block;font-size:12px;font-weight:700;color:var(--mut);margin:14px 0 6px;letter-spacing:.06em;text-transform:uppercase}
input,textarea{width:100%;font:inherit;font-size:16px;padding:13px 14px;border:1px solid var(--line);border-radius:13px;background:var(--field);color:var(--ink);transition:border .2s,box-shadow .2s,background .2s}
input::placeholder,textarea::placeholder{color:var(--mut);opacity:.65}
input:focus,textarea:focus{outline:none;border-color:var(--b);box-shadow:0 0 0 4px rgba(34,211,238,.18)}
.addr{display:flex;align-items:center;border:1px solid var(--line);border-radius:13px;background:var(--field);transition:border .2s,box-shadow .2s}
.addr input{border:0;background:none;min-width:0;box-shadow:none!important}
.addr:focus-within{border-color:var(--b);box-shadow:0 0 0 4px rgba(34,211,238,.18)}
.addr span{padding:0 14px 0 0;color:var(--mut);font-size:14px;white-space:nowrap}
.msg-err{color:var(--red);font-size:14px;min-height:20px;margin-top:10px}
.small{font-size:12.5px;color:var(--mut);line-height:1.5;margin-top:12px}
/* landing */
.land{max-width:1060px;margin:0 auto;padding:0 20px 40px}
.nav-top{display:flex;justify-content:space-between;align-items:center;padding:18px 0 10px}
.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:center;padding:34px 0 30px}
.hero h1{font-size:clamp(38px,8vw,72px);line-height:1;margin:0 0 18px;letter-spacing:-.045em;font-weight:800}
.grad{background:linear-gradient(100deg,var(--a),var(--b) 50%,var(--c),var(--pink));background-size:250% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 8s linear infinite}
.hero p.lead{font-size:clamp(16px,3.6vw,20px);color:var(--mut);line-height:1.55;max-width:520px;margin:0 0 22px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:13px;padding:7px 12px;border-radius:99px;border:1px solid var(--line);background:var(--glass);color:var(--ink);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.card{border-radius:26px;padding:22px;position:relative}
.card::before{content:"";position:absolute;inset:-1px;border-radius:27px;padding:1px;background:linear-gradient(140deg,rgba(124,92,255,.8),rgba(34,211,238,.1) 40%,rgba(255,92,174,.6));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.tabs{position:relative;display:grid;grid-template-columns:1fr 1fr;background:var(--field);border:1px solid var(--line);border-radius:14px;padding:4px;margin-bottom:6px}
.tabs button{position:relative;z-index:1;border:0;background:none;padding:11px 6px;border-radius:10px;font:inherit;font-size:14.5px;font-weight:700;color:var(--mut);cursor:pointer;transition:color .25s}
.tabs button.on{color:#fff}
.tabs .slider{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:10px;background:linear-gradient(120deg,var(--a),var(--b));box-shadow:0 6px 18px rgba(124,92,255,.45);transition:transform .35s cubic-bezier(.3,1.3,.5,1)}
.tabs.log .slider{transform:translateX(100%)}
.fwrap form{animation:rise .45s cubic-bezier(.2,.8,.2,1) both}
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.feat{border-radius:20px;padding:20px;transition:transform .3s}
.feat:hover{transform:translateY(-4px)}
.feat .ic{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:21px;margin-bottom:12px;background:linear-gradient(135deg,rgba(124,92,255,.35),rgba(34,211,238,.25))}
.feat h3{margin:0 0 5px;font-size:17px}.feat p{margin:0;color:var(--mut);font-size:14.5px;line-height:1.5}
footer{text-align:center;color:var(--mut);font-size:12.5px;padding:26px 18px 34px}
@media(max-width:800px){.hero{grid-template-columns:1fr;gap:26px;padding-top:14px}.feats{grid-template-columns:1fr}}
/* app */
body.app{height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;padding-top:max(10px,env(safe-area-inset-top))}
.topbar .brand img{width:34px;height:34px;border-radius:10px}.topbar .word{font-size:22px}
.tright{display:flex;gap:8px;align-items:center}
.who{font-size:12.5px;color:var(--mut);max-width:210px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.main{flex:1;display:flex;gap:14px;min-height:0;padding:0 14px 14px}
.side{width:220px;flex:none;border-radius:22px;padding:14px;display:flex;flex-direction:column;gap:6px;animation:rise .6s both}
.side .btn{margin-bottom:10px}
.nav{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-radius:13px;border:0;background:none;font:inherit;font-size:15px;font-weight:600;color:var(--mut);text-align:left;width:100%;cursor:pointer;transition:background .2s,color .2s,transform .2s}
.nav:hover{background:var(--glass2);color:var(--ink);transform:translateX(3px)}
.nav.on{background:linear-gradient(120deg,rgba(124,92,255,.35),rgba(34,211,238,.2));color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.nav i{font-style:normal;background:linear-gradient(120deg,var(--pink),var(--a));color:#fff;border-radius:99px;font-size:12px;font-weight:700;padding:2px 9px;box-shadow:0 0 14px rgba(255,92,174,.7);animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 0 22px rgba(255,92,174,.95)}}
.pane{flex:1;min-width:0;display:flex;flex-direction:column;border-radius:22px;overflow:hidden;animation:rise .6s .06s both}
.bar{display:flex;gap:8px;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.bar h2{margin:0;font-size:20px;flex:1;letter-spacing:-.02em}
.listwrap{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:8px}
.rw{position:relative;border-radius:16px;margin-bottom:6px;overflow:hidden;animation:rise .45s cubic-bezier(.2,.8,.2,1) both}
.rw .acts{position:absolute;inset:0;display:flex;justify-content:flex-end;align-items:stretch;opacity:0;transition:opacity .2s}
.rw:hover .acts,.rw.sw .acts{opacity:1}
@media(hover:none){.rw:hover .acts{opacity:0}.rw.sw:hover .acts{opacity:1}}
.rw .acts button{width:84px;border:0;color:#fff;font:inherit;font-weight:700;font-size:13px;background:linear-gradient(120deg,#ff5d73,#ff3d81);cursor:pointer}
.row{position:relative;display:flex;gap:12px;align-items:center;padding:12px 14px;border-radius:16px;background:linear-gradient(var(--glass2),var(--glass2)),var(--bg);border:1px solid var(--line);cursor:pointer;transition:transform .28s cubic-bezier(.2,.9,.3,1),box-shadow .25s,border-color .25s;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.rw:hover .row{transform:translateX(-84px)}
@media(hover:none){.rw:hover .row{transform:none}}
.row.unread{border-color:rgba(124,92,255,.7);box-shadow:0 0 0 1px rgba(124,92,255,.35),0 0 26px rgba(124,92,255,.35),inset 3px 0 0 var(--b)}
.av{width:46px;height:46px;border-radius:15px;flex:none;display:grid;place-items:center;font-weight:800;font-size:17px;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.25)}
.rb{flex:1;min-width:0}
.l1{display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.who2{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.dt{color:var(--mut);font-size:12px;white-space:nowrap;flex:none}
.sub{font-size:14.5px;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pv{font-size:13px;color:var(--mut);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row.unread .who2,.row.unread .sub{font-weight:800}
.tag{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:2px 8px;border-radius:99px;margin-left:6px;vertical-align:1px;border:1px solid}
.t-shop{color:#fbbf24;border-color:rgba(251,191,36,.5);background:rgba(251,191,36,.12)}
.t-friends{color:#ff7ac0;border-color:rgba(255,122,192,.5);background:rgba(255,122,192,.12)}
.t-updates{color:#22d3ee;border-color:rgba(34,211,238,.5);background:rgba(34,211,238,.12)}
.t-mail{color:#a99bff;border-color:rgba(169,155,255,.5);background:rgba(124,92,255,.14)}
.empty{text-align:center;color:var(--mut);padding:60px 20px}
.empty b{display:block;font-size:46px;margin-bottom:8px;animation:float 3s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-8px)}}
.read{padding:20px;overflow-y:auto;flex:1;animation:rise .4s both}
.read h2{margin:0 0 14px;font-size:clamp(22px,5vw,28px);line-height:1.2;letter-spacing:-.02em;word-break:break-word}
.rmeta{display:flex;gap:12px;align-items:center;padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--line)}
.rmeta .t{font-size:13.5px;color:var(--mut);line-height:1.55;word-break:break-word;min-width:0}
.rmeta .t b{color:var(--ink)}
.bodytxt{white-space:pre-wrap;word-break:break-word;font-size:16.5px;line-height:1.6}
.compose{padding:6px 18px 18px;overflow-y:auto;flex:1;animation:rise .4s both}
.compose textarea{min-height:200px;resize:vertical}
.tabbar{display:none}
.toast{position:fixed;left:50%;bottom:96px;transform:translate(-50%,20px);background:var(--glass2);color:var(--ink);border:1px solid var(--line);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);padding:11px 18px;border-radius:99px;font-size:14px;font-weight:600;opacity:0;transition:.3s;pointer-events:none;max-width:90vw;text-align:center;z-index:9;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.sk{height:70px;border-radius:16px;margin-bottom:6px;background:linear-gradient(100deg,var(--glass) 30%,var(--glass2) 50%,var(--glass) 70%);background-size:200% 100%;animation:sh 1.2s linear infinite}
@keyframes sh{to{background-position:-200% 0}}
@media(max-width:700px){
 .side{display:none}.who{display:none}
 .main{padding:0 10px 0}.pane{border-radius:22px 22px 0 0}
 .tabbar{display:flex;margin:0 10px calc(10px + env(safe-area-inset-bottom));border-radius:22px;padding:6px;gap:4px;position:relative;z-index:2}
 .tabbar button{flex:1;border:0;background:none;padding:9px 4px 8px;font:inherit;font-size:11.5px;font-weight:700;color:var(--mut);display:flex;flex-direction:column;align-items:center;gap:2px;border-radius:16px;cursor:pointer;transition:background .25s,color .25s,transform .2s;position:relative}
 .tabbar button b{font-size:20px;line-height:1}
 .tabbar button:active{transform:scale(.93)}
 .tabbar button.on{background:linear-gradient(120deg,rgba(124,92,255,.4),rgba(34,211,238,.25));color:var(--ink)}
 .tabbar .dot{position:absolute;top:6px;right:calc(50% - 22px);min-width:17px;height:17px;border-radius:99px;background:var(--pink);color:#fff;font-size:10px;display:grid;place-items:center;padding:0 4px;box-shadow:0 0 12px var(--pink)}
 .bar{padding:12px}
 .toast{bottom:104px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}