/* ════════════════════════════════════════════════════════════
   ✦ WordLife — white & light-blue 3D chat
   ════════════════════════════════════════════════════════════ */
:root{
  --sky-50:#f0f9ff; --sky-100:#e0f2fe; --sky-200:#bae6fd; --sky-300:#7dd3fc;
  --sky-400:#38bdf8; --sky-500:#0ea5e9; --sky-600:#0284c7; --sky-700:#0369a1;
  --ink:#173a52; --ink-soft:#527a94; --line:#dbeefb;
  --white:#ffffff;
  --shadow-lg:0 30px 60px -18px rgba(2,132,199,.35), 0 12px 24px -12px rgba(2,132,199,.22);
  --shadow-md:0 14px 30px -10px rgba(2,132,199,.28), 0 4px 10px -4px rgba(2,132,199,.18);
  --radius:22px;
  --mx:0; --my:0; /* mouse parallax, set by JS */
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:linear-gradient(160deg,#ffffff 0%,var(--sky-50) 45%,var(--sky-100) 100%);
  overflow:hidden;
}
.hidden{display:none!important}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:var(--sky-200);border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:var(--sky-300)}

/* ─── 3D background scene ─── */
.bg{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;perspective:900px}
.orb{position:absolute;border-radius:50%;filter:blur(2px);opacity:.75;
  background:radial-gradient(circle at 32% 28%,#ffffff 0%,var(--sky-200) 34%,var(--sky-300) 68%,var(--sky-400) 100%);
  box-shadow:inset -14px -18px 32px rgba(2,132,199,.28), inset 8px 10px 22px rgba(255,255,255,.9), 0 24px 44px -14px rgba(2,132,199,.35);
  animation:floaty 9s ease-in-out infinite}
.o1{width:210px;height:210px;top:-60px;left:-50px;transform:translate3d(calc(var(--mx)*18px),calc(var(--my)*18px),0)}
.o2{width:110px;height:110px;top:16%;right:9%;animation-delay:-3s;transform:translate3d(calc(var(--mx)*-30px),calc(var(--my)*-30px),0)}
.o3{width:64px;height:64px;bottom:26%;left:7%;animation-delay:-5s;transform:translate3d(calc(var(--mx)*42px),calc(var(--my)*42px),0)}
.o4{width:150px;height:150px;bottom:-50px;right:-30px;animation-delay:-1.5s;transform:translate3d(calc(var(--mx)*-14px),calc(var(--my)*-14px),0)}
@keyframes floaty{0%,100%{margin-top:0}50%{margin-top:-22px}}
.ring{position:absolute;border:3px solid rgba(56,189,248,.35);border-radius:50%;transform-style:preserve-3d;animation:ringspin 16s linear infinite}
.r1{width:340px;height:340px;top:8%;left:44%}
.r2{width:190px;height:190px;bottom:14%;right:26%;animation-duration:11s;animation-direction:reverse}
@keyframes ringspin{from{transform:rotateX(64deg) rotateZ(0)}to{transform:rotateX(64deg) rotateZ(360deg)}}
.grid-floor{position:absolute;left:-30%;right:-30%;bottom:-12%;height:46%;
  background:
    linear-gradient(rgba(56,189,248,.28) 2px,transparent 2px),
    linear-gradient(90deg,rgba(56,189,248,.28) 2px,transparent 2px);
  background-size:56px 56px;
  transform:rotateX(62deg);transform-origin:bottom;
  -webkit-mask-image:linear-gradient(to top,rgba(0,0,0,.9),transparent 88%);
          mask-image:linear-gradient(to top,rgba(0,0,0,.9),transparent 88%);
  animation:gridmove 2.6s linear infinite}
@keyframes gridmove{from{background-position:0 0,0 0}to{background-position:0 56px,0 0}}

/* ═════════ AUTH VIEW ═════════ */
.auth-view{position:relative;z-index:1;min-height:100dvh;display:flex;align-items:center;justify-content:center;gap:clamp(30px,6vw,90px);padding:36px clamp(18px,5vw,70px);flex-wrap:wrap;overflow-y:auto}
.brand{max-width:480px;text-align:left;animation:riseIn .8s cubic-bezier(.2,.9,.25,1.2) both}
@keyframes riseIn{from{opacity:0;transform:translateY(26px) }to{opacity:1;transform:none}}

/* rotating 3D cube logo */
.cube-wrap{width:96px;height:96px;perspective:640px;margin-bottom:26px;position:relative}
.cube{width:100%;height:100%;position:relative;transform-style:preserve-3d;animation:cubespin 14s linear infinite}
@keyframes cubespin{from{transform:rotateX(-18deg) rotateY(0)}to{transform:rotateX(-18deg) rotateY(360deg)}}
.face{position:absolute;inset:0;display:grid;place-items:center;font-size:40px;font-family:"Sora",sans-serif;font-weight:800;color:#fff;border-radius:16px;border:2px solid rgba(255,255,255,.75);
  background:linear-gradient(145deg,rgba(125,211,252,.92),rgba(14,165,233,.92));box-shadow:inset 0 0 26px rgba(255,255,255,.45);backface-visibility:visible}
.f-front{transform:translateZ(48px)} .f-back{transform:rotateY(180deg) translateZ(48px)}
.f-right{transform:rotateY(90deg) translateZ(48px)} .f-left{transform:rotateY(-90deg) translateZ(48px)}
.f-top{transform:rotateX(90deg) translateZ(48px)} .f-bottom{transform:rotateX(-90deg) translateZ(48px)}
.cube-shadow{position:absolute;left:8px;right:8px;bottom:-30px;height:16px;border-radius:50%;background:radial-gradient(ellipse at center,rgba(2,132,199,.4),transparent 70%);animation:shadowpulse 3.5s ease-in-out infinite}
@keyframes shadowpulse{0%,100%{transform:scaleX(1);opacity:.8}50%{transform:scaleX(.78);opacity:.45}}

/* extruded 3D wordmark */
.logo-3d{font-family:"Sora",sans-serif;font-weight:800;font-size:clamp(52px,7.5vw,86px);letter-spacing:.01em;line-height:1;transform:perspective(700px) rotateX(8deg);transform-origin:bottom;animation:logofloat 5s ease-in-out infinite}
@keyframes logofloat{0%,100%{transform:perspective(700px) rotateX(8deg) translateY(0)}50%{transform:perspective(700px) rotateX(8deg) translateY(-7px)}}
.logo-3d .w{color:var(--sky-600);text-shadow:1px 1px 0 var(--sky-400),2px 2px 0 var(--sky-400),3px 3px 0 var(--sky-300),4px 4px 0 var(--sky-300),5px 5px 0 var(--sky-200),6px 6px 0 var(--sky-200),9px 12px 22px rgba(2,132,199,.30)}
.logo-3d .l{color:var(--sky-400);text-shadow:1px 1px 0 var(--sky-300),2px 2px 0 var(--sky-300),3px 3px 0 var(--sky-200),4px 4px 0 var(--sky-200),5px 5px 0 var(--sky-100),6px 6px 0 var(--sky-100),9px 12px 22px rgba(2,132,199,.28)}
.logo-3d .dot{color:var(--sky-500)}
.tagline{margin-top:16px;font-size:17px;color:var(--ink-soft);line-height:1.55}
.tagline em{color:var(--sky-600);font-style:normal;font-weight:700}
.features{list-style:none;margin-top:26px;display:grid;gap:12px}
.features li{display:flex;align-items:center;gap:12px;font-weight:600;color:var(--ink);background:rgba(255,255,255,.66);border:1px solid var(--line);backdrop-filter:blur(6px);padding:11px 16px;border-radius:16px;box-shadow:var(--shadow-md);transform-style:preserve-3d;transition:transform .25s}
.features li:hover{transform:translateX(6px) translateZ(6px) rotateY(-3deg)}
.chip{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(145deg,var(--sky-300),var(--sky-500));box-shadow:0 6px 12px -4px rgba(2,132,199,.5), inset 0 1px 0 rgba(255,255,255,.7);font-size:16px}

/* flip card + tilt */
.auth-scene{perspective:1400px;animation:riseIn .8s .12s cubic-bezier(.2,.9,.25,1.2) both}
.tilt-wrap{transform-style:preserve-3d;transition:transform .18s ease-out;will-change:transform}
.auth-card{position:relative;width:min(410px,92vw);height:560px;transform-style:preserve-3d;transition:transform .85s cubic-bezier(.3,.7,.3,1)}
.auth-card.flipped{transform:rotateY(180deg)}
.auth-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:28px;padding:36px 34px;
  background:linear-gradient(165deg,rgba(255,255,255,.96),rgba(240,249,255,.92));
  border:1px solid rgba(186,230,253,.9);box-shadow:var(--shadow-lg), inset 0 1px 0 #fff;overflow:hidden}
.auth-face::before{content:"";position:absolute;inset:0;background:radial-gradient(420px circle at var(--gx,50%) var(--gy,50%),rgba(125,211,252,.20),transparent 65%);pointer-events:none}
.auth-back{transform:rotateY(180deg)}
.auth-face h2{font-family:"Sora",sans-serif;font-size:25px;font-weight:700;color:var(--sky-700)}
.wave{display:inline-block;animation:wave 2.2s ease-in-out infinite;transform-origin:70% 70%}
@keyframes wave{0%,60%,100%{transform:rotate(0)}10%{transform:rotate(16deg)}20%{transform:rotate(-8deg)}30%{transform:rotate(14deg)}40%{transform:rotate(-4deg)}50%{transform:rotate(8deg)}}
.auth-face .sub{color:var(--ink-soft);margin:8px 0 22px;font-size:14.5px}
.auth-face form{display:grid;gap:15px}
.auth-face label{display:grid;gap:7px;font-size:13px;font-weight:700;color:var(--sky-700);letter-spacing:.02em}
.auth-face input{padding:13px 15px;border-radius:14px;border:2px solid var(--sky-100);background:#fff;font-size:15px;color:var(--ink);outline:none;transition:border-color .2s, box-shadow .2s, transform .2s;box-shadow:inset 0 2px 5px rgba(2,132,199,.06)}
.auth-face input:focus{border-color:var(--sky-400);box-shadow:0 0 0 4px rgba(56,189,248,.18), inset 0 2px 5px rgba(2,132,199,.05);transform:translateY(-1px)}
.form-error{background:#fff1f2;border:1px solid #fecdd3;color:#be123c;padding:10px 13px;border-radius:12px;font-size:13.5px;font-weight:600}
.btn-3d{margin-top:4px;padding:14px;border:none;border-radius:15px;font-size:16px;font-weight:800;color:#fff;letter-spacing:.02em;
  background:linear-gradient(180deg,var(--sky-400),var(--sky-500) 55%,var(--sky-600));
  box-shadow:0 6px 0 var(--sky-700), 0 16px 26px -8px rgba(2,132,199,.55), inset 0 1px 0 rgba(255,255,255,.65);
  transition:transform .08s, box-shadow .08s, filter .2s}
.btn-3d:hover{filter:brightness(1.06)}
.btn-3d:active{transform:translateY(5px);box-shadow:0 1px 0 var(--sky-700), 0 6px 12px -6px rgba(2,132,199,.5), inset 0 1px 0 rgba(255,255,255,.65)}
.btn-3d:disabled{opacity:.65;cursor:wait}
.switch{margin-top:20px;font-size:14px;color:var(--ink-soft);text-align:center}
.linklike{background:none;border:none;color:var(--sky-600);font-weight:800;font-size:14px;text-decoration:underline;text-underline-offset:3px}
.linklike:hover{color:var(--sky-500)}
.demo-hint{margin-top:14px;text-align:center;font-size:12.5px;color:var(--sky-600);background:var(--sky-50);border:1px dashed var(--sky-300);padding:8px;border-radius:11px}

/* ═════════ APP VIEW ═════════ */
.app-view{position:relative;z-index:1;height:calc(100dvh - 30px);margin:15px;display:grid;grid-template-columns:348px 1fr;border-radius:30px;overflow:hidden;
  background:rgba(255,255,255,.72);backdrop-filter:blur(14px);border:1px solid rgba(186,230,253,.95);
  box-shadow:var(--shadow-lg), inset 0 1px 0 #fff;animation:riseIn .55s cubic-bezier(.2,.9,.25,1.15) both}

/* sidebar */
.sidebar{display:flex;flex-direction:column;background:linear-gradient(180deg,rgba(255,255,255,.94),rgba(224,242,254,.55));border-right:1px solid var(--line);min-height:0}
.side-head{display:flex;align-items:center;justify-content:space-between;padding:18px 18px 10px}
.mini-logo{display:flex;align-items:center;gap:9px}
.mini-cube{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;font-size:19px;color:#fff;
  background:linear-gradient(145deg,var(--sky-300),var(--sky-500));
  box-shadow:0 8px 16px -6px rgba(2,132,199,.6), inset 0 1px 0 rgba(255,255,255,.7);transform:perspective(300px) rotateX(10deg) rotateY(-12deg)}
.mini-word{font-family:"Sora",sans-serif;font-size:21px;font-weight:600;color:var(--sky-700);letter-spacing:.01em}
.mini-word strong{font-weight:800;color:var(--sky-500)}
.mini-word .dot{color:var(--sky-400);font-weight:800}
.icon-btn{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--sky-600);font-size:16px;box-shadow:0 3px 0 var(--sky-100),var(--shadow-md);transition:transform .1s, box-shadow .1s}
.icon-btn:hover{background:var(--sky-50)}
.icon-btn:active{transform:translateY(3px);box-shadow:0 0 0 var(--sky-100)}
.icon-btn.big{width:44px;height:44px;font-size:20px;border-radius:14px;flex:none}
.me-chip{display:flex;align-items:center;gap:12px;margin:8px 16px 12px;padding:12px 14px;border-radius:18px;color:#fff;
  background:linear-gradient(120deg,var(--sky-400),var(--sky-500) 60%,var(--sky-600));
  box-shadow:0 14px 24px -10px rgba(2,132,199,.6), inset 0 1px 0 rgba(255,255,255,.55);transform-style:preserve-3d}
.me-chip .who{min-width:0}
.me-chip .who b{display:block;font-family:"Sora",sans-serif;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.me-chip .who span{font-size:12.5px;opacity:.9}
.search-box{display:flex;align-items:center;gap:8px;margin:2px 16px 12px;padding:10px 13px;border-radius:14px;background:#fff;border:2px solid var(--sky-100);box-shadow:inset 0 2px 5px rgba(2,132,199,.06)}
.search-box input{border:none;outline:none;flex:1;font-size:14px;color:var(--ink);background:transparent}
.chat-list{flex:1;overflow-y:auto;padding:2px 12px 16px;display:flex;flex-direction:column;gap:8px;perspective:800px}
.list-label{font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--sky-500);margin:10px 6px 2px}
.chat-item{display:flex;gap:12px;align-items:center;width:100%;text-align:left;padding:12px;border-radius:18px;border:1px solid transparent;background:rgba(255,255,255,.75);
  box-shadow:0 6px 14px -8px rgba(2,132,199,.22);transition:transform .18s, box-shadow .18s, background .18s;transform-style:preserve-3d;position:relative}
.chat-item:hover{transform:translateY(-2px) translateZ(8px) rotateX(2deg);box-shadow:0 14px 24px -10px rgba(2,132,199,.35);background:#fff}
.chat-item.active{background:linear-gradient(120deg,var(--sky-100),#fff);border-color:var(--sky-300);box-shadow:0 12px 22px -10px rgba(2,132,199,.4), inset 3px 0 0 var(--sky-500)}
.chat-item .meta{flex:1;min-width:0}
.chat-item .row1{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.chat-item .name{font-weight:700;font-size:14.5px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-item .time{font-size:11px;color:var(--ink-soft);flex:none}
.chat-item .preview{font-size:12.8px;color:var(--ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.chat-item .preview.typing{color:var(--sky-500);font-weight:700;font-style:italic}
.badge{min-width:21px;height:21px;padding:0 6px;border-radius:99px;background:linear-gradient(180deg,var(--sky-400),var(--sky-600));color:#fff;font-size:11.5px;font-weight:800;display:grid;place-items:center;box-shadow:0 4px 8px -3px rgba(2,132,199,.6);animation:badgepop .3s cubic-bezier(.3,1.6,.5,1)}
.badge.dotonly{min-width:11px;width:11px;height:11px;padding:0}
@keyframes badgepop{from{transform:scale(.4)}to{transform:scale(1)}}
.empty-note{padding:22px 16px;text-align:center;color:var(--ink-soft);font-size:13.5px;line-height:1.6;background:rgba(240,249,255,.8);border:1px dashed var(--sky-300);border-radius:16px;margin:6px 4px}

/* avatars */
.avatar{position:relative;flex:none;display:grid;place-items:center;border-radius:50%;color:#fff;font-family:"Sora",sans-serif;font-weight:800;
  box-shadow:0 8px 14px -6px rgba(2,132,199,.45), inset 0 2px 3px rgba(255,255,255,.55), inset 0 -3px 6px rgba(0,0,0,.14)}
.avatar .presence{position:absolute;right:-1px;bottom:-1px;width:12px;height:12px;border-radius:50%;background:#cbd5e1;border:2.5px solid #fff}
.avatar .presence.on{background:#22c55e;animation:pulse-dot 2s infinite}
@keyframes pulse-dot{0%{box-shadow:0 0 0 0 rgba(34,197,94,.45)}70%{box-shadow:0 0 0 7px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}

/* chat pane */
.chat-pane{display:flex;flex-direction:column;min-width:0;min-height:0;background:
  radial-gradient(circle at 18% 8%, rgba(186,230,253,.5), transparent 42%),
  radial-gradient(circle at 88% 92%, rgba(125,211,252,.32), transparent 46%),
  linear-gradient(180deg,#ffffff, var(--sky-50))}
.chat-head{display:flex;align-items:center;gap:13px;padding:14px 20px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.82);backdrop-filter:blur(8px);box-shadow:0 10px 20px -14px rgba(2,132,199,.35);z-index:2}
.head-text{flex:1;min-width:0}
.head-text h2{font-family:"Sora",sans-serif;font-size:17.5px;font-weight:700;color:var(--sky-700);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.head-text p{font-size:12.5px;color:var(--ink-soft)}
.head-text p .on{color:#16a34a;font-weight:700}
.live-pill{display:flex;align-items:center;gap:7px;font-size:10.5px;font-weight:800;letter-spacing:.12em;color:var(--sky-700);background:var(--sky-50);border:1px solid var(--sky-200);padding:6px 11px;border-radius:99px;box-shadow:inset 0 1px 0 #fff}
.live-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;animation:pulse-dot 1.6s infinite}

.messages{flex:1;overflow-y:auto;padding:24px clamp(14px,3.4vw,44px) 12px;display:flex;flex-direction:column;gap:4px;perspective:700px;
  background-image:radial-gradient(rgba(56,189,248,.13) 1.6px, transparent 1.6px);background-size:26px 26px}
.day-sep{align-self:center;margin:16px 0 10px;font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--sky-600);background:#fff;border:1px solid var(--sky-200);padding:5px 13px;border-radius:99px;box-shadow:var(--shadow-md)}
.msg-row{display:flex;gap:9px;align-items:flex-end;max-width:78%;animation:msgIn .38s cubic-bezier(.25,1.1,.35,1.15) both;transform-origin:bottom}
.msg-row.mine{align-self:flex-end;flex-direction:row-reverse;transform-origin:bottom right}
.msg-row.theirs{align-self:flex-start;transform-origin:bottom left}
@keyframes msgIn{from{opacity:0;transform:translateY(14px) rotateX(-38deg) scale(.94)}to{opacity:1;transform:none}}
.msg-row.grouped{margin-top:-1px}
.msg-row.grouped .bubble .sender-name{display:none}
.bubble{position:relative;padding:10px 14px 8px;border-radius:19px;font-size:14.8px;line-height:1.45;word-break:break-word;white-space:pre-wrap;transition:transform .16s}
.bubble:hover{transform:translateY(-1px) translateZ(4px)}
.msg-row.theirs .bubble{background:#fff;border:1px solid var(--line);border-bottom-left-radius:7px;color:var(--ink);box-shadow:0 8px 16px -8px rgba(2,132,199,.25), inset 0 1px 0 #fff}
.msg-row.mine .bubble{background:linear-gradient(150deg,var(--sky-400),var(--sky-500) 55%,var(--sky-600));border-bottom-right-radius:7px;color:#fff;box-shadow:0 12px 20px -9px rgba(2,132,199,.6), inset 0 1px 0 rgba(255,255,255,.5)}
.sender-name{display:block;font-size:11.5px;font-weight:800;color:var(--sky-600);margin-bottom:3px;letter-spacing:.01em}
.msg-time{display:block;text-align:right;font-size:10.5px;margin-top:4px;opacity:.65}
.msg-row .avatar.spacer{visibility:hidden;box-shadow:none}
.welcome-empty{margin:auto;text-align:center;color:var(--ink-soft);max-width:340px;line-height:1.65;font-size:14.5px;padding:30px 24px;background:rgba(255,255,255,.75);border:1px dashed var(--sky-300);border-radius:22px;box-shadow:var(--shadow-md)}
.welcome-empty .big{font-size:42px;display:block;margin-bottom:8px;animation:floaty 4s ease-in-out infinite}

/* typing + composer */
.typing-bar{display:flex;align-items:center;gap:9px;padding:4px 24px 8px;font-size:12.8px;color:var(--sky-600);font-weight:600}
.tdots{display:inline-flex;gap:4px;background:#fff;border:1px solid var(--line);padding:8px 11px;border-radius:99px;box-shadow:var(--shadow-md)}
.tdots i{width:7px;height:7px;border-radius:50%;background:var(--sky-400);animation:tbounce 1.1s infinite}
.tdots i:nth-child(2){animation-delay:.15s}.tdots i:nth-child(3){animation-delay:.3s}
@keyframes tbounce{0%,60%,100%{transform:translateY(0);opacity:.5}30%{transform:translateY(-5px);opacity:1}}
.composer{display:flex;gap:10px;align-items:flex-end;padding:14px 16px 16px;border-top:1px solid var(--line);background:rgba(255,255,255,.88);backdrop-filter:blur(8px)}
.composer textarea{flex:1;resize:none;border:2px solid var(--sky-100);background:#fff;border-radius:17px;padding:12px 15px;font-size:14.8px;color:var(--ink);outline:none;max-height:120px;box-shadow:inset 0 2px 5px rgba(2,132,199,.06);transition:border-color .2s, box-shadow .2s}
.composer textarea:focus{border-color:var(--sky-400);box-shadow:0 0 0 4px rgba(56,189,248,.16)}
.send-btn{flex:none;width:47px;height:47px;border:none;border-radius:16px;font-size:18px;color:#fff;
  background:linear-gradient(180deg,var(--sky-400),var(--sky-500) 55%,var(--sky-600));
  box-shadow:0 5px 0 var(--sky-700), 0 14px 22px -8px rgba(2,132,199,.6), inset 0 1px 0 rgba(255,255,255,.6);
  transition:transform .08s, box-shadow .08s;transform:perspective(300px) rotateX(8deg)}
.send-btn:hover{filter:brightness(1.07)}
.send-btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--sky-700), 0 5px 10px -5px rgba(2,132,199,.5)}
.emoji-wrap{position:relative;flex:none}
.emoji-picker{position:absolute;bottom:56px;left:0;width:286px;padding:12px;display:grid;grid-template-columns:repeat(7,1fr);gap:4px;background:#fff;border:1px solid var(--sky-200);border-radius:18px;box-shadow:var(--shadow-lg);z-index:30;animation:msgIn .25s both}
.emoji-picker button{border:none;background:transparent;font-size:21px;padding:6px;border-radius:10px;transition:background .15s, transform .15s}
.emoji-picker button:hover{background:var(--sky-50);transform:scale(1.22)}

/* toast */
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);z-index:99;background:linear-gradient(150deg,var(--sky-500),var(--sky-600));color:#fff;font-weight:700;font-size:14px;padding:13px 22px;border-radius:15px;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:all .3s cubic-bezier(.3,1.2,.4,1)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* mobile */
.only-mobile{display:none}
.scrim{display:none}
@media (max-width:920px){
  .brand{text-align:center}
  .cube-wrap{margin-inline:auto}
  .features li{text-align:left}
}
@media (max-width:760px){
  .app-view{grid-template-columns:1fr;margin:0;height:100dvh;border-radius:0}
  .sidebar{position:fixed;top:0;left:0;bottom:0;width:min(320px,86vw);z-index:40;transform:translateX(-105%);transition:transform .32s cubic-bezier(.3,.8,.3,1);box-shadow:var(--shadow-lg);background:linear-gradient(180deg,#fff,var(--sky-50))}
  .sidebar.open{transform:none}
  .scrim{display:block;position:fixed;inset:0;background:rgba(3,105,161,.32);backdrop-filter:blur(2px);z-index:35}
  .only-mobile{display:grid}
  .msg-row{max-width:88%}
  .live-pill{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
}