/* ChatPlus — professional design layer */
:root{
  --bg:#f2f6f5;--pn:#ffffff;--tx:#0c2323;--ink:#0a2a2a;--mt:#5d7270;--ac:#0e7c74;--ac2:#14a394;--warm:#ee8a3c;
  --me:#d6f3ee;--bd:#e1eae8;--soft:#e8f4f2;--danger:#dc2626;
  --sh-sm:0 1px 2px rgba(10,42,42,.06),0 1px 1px rgba(10,42,42,.04);
  --sh-md:0 8px 24px -8px rgba(10,42,42,.16);
  --sh-lg:0 30px 60px -20px rgba(10,42,42,.28);
  --grad:linear-gradient(135deg,var(--ac),var(--ac2));
  --r:14px;
}
[data-theme=dark]{
  --bg:#0a1214;--pn:#111c1f;--tx:#e6eeed;--ink:#f1f5f4;--mt:#8ea3a1;--ac:#2cc3b1;--ac2:#4fd8c6;
  --me:#0f4a44;--bd:#1f2e31;--soft:#16292b;
  --sh-sm:0 1px 2px rgba(0,0,0,.4);--sh-md:0 8px 24px -8px rgba(0,0,0,.6);--sh-lg:0 30px 60px -20px rgba(0,0,0,.7);
}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{font-family:'Plus Jakarta Sans',system-ui,sans-serif;font-size:15px;line-height:1.5;background:var(--bg);color:var(--tx)}
::selection{background:var(--ac);color:#fff}
*::-webkit-scrollbar{width:8px;height:8px}*::-webkit-scrollbar-thumb{background:var(--bd);border-radius:99px}*::-webkit-scrollbar-track{background:transparent}

/* Buttons & inputs */
button{background:var(--grad);color:#fff;border-radius:12px;padding:10px 16px;font-weight:600;box-shadow:var(--sh-sm);transition:transform .15s,box-shadow .15s,background .15s,opacity .15s}
button:hover{opacity:1;transform:translateY(-1px);box-shadow:var(--sh-md)}
button:active{transform:translateY(0)}
button:focus-visible,input:focus-visible{outline:2px solid var(--ac);outline-offset:2px}
button.g{background:transparent;color:var(--tx);box-shadow:none}
button.g:hover{background:var(--soft);transform:none;box-shadow:none}
button.red{background:var(--danger)}
input{background:var(--bg);border:1.5px solid var(--bd);border-radius:12px;padding:12px 14px;transition:border-color .15s,box-shadow .15s,background .15s}
input::placeholder{color:var(--mt)}
input:focus{outline:none;border-color:var(--ac);background:var(--pn);box-shadow:0 0 0 4px color-mix(in oklab,var(--ac) 18%,transparent)}
.ib{width:38px;height:38px;padding:0;display:inline-grid;place-items:center;border-radius:99px}
.seg{box-shadow:var(--sh-sm)}.seg button{box-shadow:none;padding:6px 12px}.seg button:hover{transform:none}
.seg button.on{background:var(--grad)}

/* Landing */
.land{max-width:1200px;padding:20px 24px;min-height:100%}
.land header{position:sticky;top:0;z-index:10;padding:12px 0;backdrop-filter:blur(12px)}
.nav{gap:10px}
.hero{gap:56px;padding:72px 0 64px}
.hero h1{font-size:clamp(40px,6vw,72px)}
.hero em{background:linear-gradient(90deg,var(--ac) 10%,var(--warm));-webkit-background-clip:text;background-clip:text}
.hero p{font-size:19px;line-height:1.6}
.pill{box-shadow:var(--sh-sm)}.pill i{background:var(--warm);box-shadow:0 0 0 4px color-mix(in oklab,var(--warm) 25%,transparent)}
.big{border-radius:99px;padding:16px 28px;box-shadow:0 12px 30px -10px color-mix(in oklab,var(--ac) 60%,transparent)}
.big.o{background:var(--pn);color:var(--tx);border:1.5px solid var(--bd);box-shadow:var(--sh-sm)}
.phone{box-shadow:var(--sh-lg),0 0 0 1px rgba(255,255,255,.05) inset;transform:rotate(-1.5deg);transition:transform .4s}
.phone:hover{transform:rotate(0) translateY(-4px)}
.feat{gap:20px;padding-bottom:64px}
.card{border-radius:20px;padding:26px;box-shadow:var(--sh-sm)}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:color-mix(in oklab,var(--ac) 35%,var(--bd))}
.card .ic{background:var(--soft);color:var(--ac)}
.card p{line-height:1.6;margin:0}
.land footer{padding:28px 0;font-size:14px}

/* Auth */
.auth{max-width:400px;margin:7vh auto;padding:32px;border-radius:24px;gap:12px;border:1px solid var(--bd);box-shadow:var(--sh-lg);position:relative}
.auth .logo{justify-content:center;font-size:26px;margin:4px 0 12px;color:var(--ink)}
.auth>button:first-child{position:absolute;top:14px;left:14px;width:38px;height:38px;padding:0;border-radius:99px}
.auth>button:not(.g){padding:13px;font-size:16px;margin-top:4px}
.auth>div:last-child{display:flex;justify-content:center;gap:8px;margin-top:6px}
.err{color:var(--danger);font-size:13px;text-align:center}
@media(max-width:480px){.auth{margin:0;min-height:100%;border-radius:0;border:0;justify-content:center}}

/* App layout */
.layout{grid-template-columns:340px 1fr;background:var(--bg)}
.side{box-shadow:var(--sh-sm);z-index:2}
.side>.bar:first-child{padding:14px 14px 10px;border-bottom:1px solid var(--bd)}
.side>.bar:first-child .row{gap:2px}
.side>.bar:first-child .row button.g{padding:8px 10px;font-size:14px}
.side>.bar:nth-child(2){padding:10px 14px}
.side>.bar:nth-child(2) input{border-radius:99px;padding-left:40px;background:var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%237a8f8d' stroke-width='2' viewBox='0 0 24 24'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E") no-repeat 14px center}
.item{padding:12px 16px;margin:2px 8px;border:0;border-radius:12px;align-items:center;gap:10px;transition:background .15s}
.item:hover{background:var(--soft)}
.item.on{background:var(--soft);box-shadow:inset 3px 0 0 var(--ac)}
.badge{background:var(--grad);min-width:22px;height:22px;display:inline-grid;place-items:center;font-weight:700;font-size:11.5px;padding:0 7px}
.av{background:var(--grad);width:42px;height:42px;font-size:15px;box-shadow:var(--sh-sm)}

/* Chat */
.chat{background:var(--bg)}
.chat>.bar{background:var(--pn);padding:12px 16px;border-bottom:1px solid var(--bd);box-shadow:var(--sh-sm);z-index:1}
.chat>.bar b{font-size:16px}
.msgs{padding:20px clamp(12px,4vw,48px);gap:8px;background-color:var(--bg);background-image:radial-gradient(color-mix(in oklab,var(--ac) 14%,transparent) 1px,transparent 1px);background-size:20px 20px}
.m{max-width:min(75%,560px);padding:9px 13px;border-radius:16px 16px 16px 4px;box-shadow:var(--sh-sm);word-wrap:break-word;line-height:1.45}
.m.me{background:var(--me);border-radius:16px 16px 4px 16px}
.m small{text-align:right;font-size:11px;opacity:.85}
.m .rp{background:color-mix(in oklab,var(--ac) 8%,transparent);border-radius:8px;padding:4px 8px;margin-bottom:4px}
.m .ac{margin-top:6px;padding-top:6px;border-top:1px solid var(--bd)}
.m .ac span{padding:2px 6px;border-radius:6px}.m .ac span:hover{background:var(--soft)}
.m img,.m video{border-radius:10px;display:block}
.rx span{border:1px solid var(--bd);font-size:13px}
.typing{padding:0 20px;font-style:italic;color:var(--ac)}
.send{padding:12px 16px;gap:10px;align-items:center;border-top:1px solid var(--bd)}
.send input{border-radius:99px;padding:13px 18px}
.send button{border-radius:99px;min-width:44px;height:44px;padding:0 16px}
.send button.g{min-width:40px;padding:0 10px}
.empty{font-size:16px;font-weight:500;text-align:center;padding:24px;display:flex;flex-direction:column;align-items:center;gap:14px}
.empty::before{content:"";width:88px;height:88px;border-radius:28px;background:var(--grad) center/44px no-repeat;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E"),var(--grad);box-shadow:var(--sh-md)}

/* Calls */
.call{background:radial-gradient(circle at 50% 30%,#123a38,#060d0e)}
.cb button{width:60px;height:60px;padding:0;display:grid;place-items:center;box-shadow:var(--sh-lg)}
#lv{border-radius:16px;box-shadow:var(--sh-lg);border:2px solid rgba(255,255,255,.15)}

@media(max-width:800px){.hero{padding:36px 0 40px;gap:36px}.phone{transform:none}}
@media(max-width:700px){.layout{grid-template-columns:1fr}.side>.bar:first-child .row button.g{padding:8px}}
.mb b{display:block;margin-bottom:2px}

/* Messages pro layer */
textarea{font:inherit;color:inherit}
.chat{position:relative}
.send{position:relative}
.dsep{align-self:center;background:var(--pn);color:var(--mt);font-size:11.5px;font-weight:700;border-radius:99px;padding:5px 14px;box-shadow:var(--sh-sm);text-transform:uppercase;letter-spacing:.6px;margin:6px 0 2px}
.m>b{display:block;font-size:12.5px;font-weight:700;color:var(--ac);margin-bottom:2px}
.m .tx a{color:var(--ac);text-decoration:underline;word-break:break-all}
.m .rp{cursor:pointer}
.m .rp:hover{background:color-mix(in oklab,var(--ac) 16%,transparent)}
.m.flash{animation:flash 1.2s}
@keyframes flash{0%,55%{box-shadow:0 0 0 3px var(--ac),var(--sh-sm)}100%{box-shadow:var(--sh-sm)}}
.m.hit{outline:2.5px solid var(--warm);outline-offset:1px}
.m img{cursor:zoom-in}
.lbox{position:fixed;inset:0;background:rgba(4,13,13,.9);z-index:60;display:grid;place-items:center;cursor:zoom-out;animation:fade .15s}
.lbox img{max-width:94vw;max-height:92vh;border-radius:12px;box-shadow:var(--sh-lg)}
@keyframes fade{from{opacity:0}}
.emojip{position:absolute;bottom:calc(100% + 8px);left:10px;display:grid;grid-template-columns:repeat(8,1fr);gap:2px;background:var(--pn);border:1px solid var(--bd);border-radius:14px;padding:8px;box-shadow:var(--sh-md);z-index:20;animation:fade .15s;max-height:220px;overflow:auto}
.emojip.hidden{display:none}
.emojip button{font-size:19px;padding:5px;border-radius:8px;background:transparent;color:inherit;box-shadow:none;min-width:0;min-height:0}
.emojip button:hover{background:var(--soft);transform:none}
.jump{position:absolute;right:18px;bottom:84px;width:42px;height:42px;border-radius:99px;padding:0;font-size:18px;box-shadow:var(--sh-md);z-index:5;opacity:0;pointer-events:none;transition:opacity .2s}
.jump.show{opacity:1;pointer-events:auto}
.chatsearch{padding:8px 16px;background:var(--pn);border-bottom:1px solid var(--bd);display:flex;gap:10px;align-items:center}
.chatsearch input{flex:1;border-radius:99px;padding:9px 14px}
.hitcount{color:var(--mt);font-size:12px;font-weight:600;white-space:nowrap}
textarea#inp{flex:1;background:var(--bg);border:1.5px solid var(--bd);border-radius:18px;padding:11px 16px;resize:none;max-height:120px;line-height:1.45;transition:border-color .15s,background .15s}
textarea#inp::placeholder{color:var(--mt)}
textarea#inp:focus{outline:none;border-color:var(--ac);background:var(--pn);box-shadow:0 0 0 4px color-mix(in oklab,var(--ac) 18%,transparent)}
@media(max-width:700px){.emojip{grid-template-columns:repeat(6,1fr);right:10px}}

/* ChatPlus Crystal 10D Ultra — premium ocean workspace */
:root{--bg:#edf5f5;--pn:rgba(255,255,255,.88);--tx:#102d32;--ink:#092a31;--mt:#6a858a;--ac:#078f89;--ac2:#31d8ca;--me:#d6f8f1;--bd:rgba(87,139,145,.20);--soft:rgba(10,160,154,.09);--warm:#ffb76b}
[data-theme=dark]{--bg:#061419;--pn:rgba(12,31,39,.88);--tx:#e8f7f8;--ink:#f1ffff;--mt:#91afb7;--ac:#26d5c6;--ac2:#76f5e7;--me:#103f43;--bd:rgba(91,220,215,.17);--soft:rgba(39,214,203,.09);--warm:#ffc27e;--sh-sm:0 2px 8px rgba(0,0,0,.22),inset 0 1px rgba(255,255,255,.025);--sh-md:0 14px 36px rgba(0,0,0,.28);--sh-lg:0 28px 70px rgba(0,0,0,.42)}
body{background:radial-gradient(ellipse at 8% 0%,rgba(20,190,180,.09),transparent 34%),radial-gradient(ellipse at 100% 100%,rgba(38,126,174,.08),transparent 35%),var(--bg)}
[data-theme=dark] body{background:radial-gradient(ellipse at 0% 0%,rgba(15,183,174,.13),transparent 36%),radial-gradient(ellipse at 100% 100%,rgba(24,89,128,.12),transparent 38%),var(--bg)}
.layout{grid-template-columns:clamp(280px,27vw,360px) minmax(0,1fr);gap:0;background:transparent}
.side{background:var(--pn);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-right:1px solid var(--bd);box-shadow:8px 0 34px rgba(1,35,43,.035);min-width:0}
[data-theme=dark] .side{background:linear-gradient(160deg,rgba(13,35,43,.96),rgba(7,22,29,.94));box-shadow:12px 0 40px rgba(0,0,0,.14)}
.side>.bar:first-child{min-height:70px;padding:14px 16px;border-bottom:1px solid var(--bd);background:transparent}
.side .logo{color:var(--ink);letter-spacing:-.65px}.side>.bar:first-child .row{gap:4px}.side>.bar:first-child .row button.g{border:1px solid transparent}.side>.bar:first-child .row button.g:hover{border-color:var(--bd);color:var(--ac)}
.side>.bar:nth-child(2){padding:14px 14px 10px}.side>.bar:nth-child(2) input{background-color:color-mix(in srgb,var(--bg) 82%,transparent);border:1px solid var(--bd);height:46px}
#list{padding:8px 7px 16px}.item{position:relative;min-height:66px;padding:11px 12px;margin:3px 0;border:1px solid transparent;border-radius:16px;gap:12px;align-items:center}.item .row{min-width:0;flex:1}.item .row>span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.item:hover{background:var(--soft);border-color:var(--bd)}
.item.on{background:linear-gradient(110deg,color-mix(in srgb,var(--ac) 13%,var(--pn)),color-mix(in srgb,var(--ac2) 5%,var(--pn)));border-color:color-mix(in srgb,var(--ac) 26%,var(--bd));box-shadow:inset 3px 0 0 var(--ac),0 5px 18px rgba(0,50,60,.035)}
.av{border:1px solid rgba(255,255,255,.22);background:linear-gradient(145deg,#1ac8bd,#086c77);box-shadow:0 5px 14px rgba(0,133,131,.19)}
.chat{min-width:0;background:transparent}.chat>.bar{min-height:70px;padding:12px clamp(12px,2vw,26px);background:var(--pn);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid var(--bd);box-shadow:0 8px 26px rgba(0,35,45,.035);z-index:1}
[data-theme=dark] .chat>.bar{background:linear-gradient(100deg,rgba(13,34,42,.94),rgba(9,27,35,.86))}.chat>.bar>b{letter-spacing:-.25px}.chat>.bar>span{display:flex;gap:5px;align-items:center}.chat>.bar button.g{width:40px;height:40px;padding:0;border:1px solid transparent;border-radius:13px}.chat>.bar button.g:hover{border-color:var(--bd);background:var(--soft);color:var(--ac)}
.msgs{background-color:transparent;background-image:radial-gradient(color-mix(in srgb,var(--ac) 13%,transparent) .8px,transparent .8px);background-size:22px 22px;padding:24px clamp(14px,4vw,58px);gap:10px;overscroll-behavior:contain}
.m{position:relative;max-width:min(76%,600px);padding:11px 14px;border:1px solid var(--bd);background:var(--pn);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:17px 17px 17px 5px;box-shadow:0 7px 20px rgba(7,48,56,.045);transition:border-color .18s,box-shadow .18s,transform .18s}.m:hover{border-color:color-mix(in srgb,var(--ac) 35%,var(--bd));box-shadow:0 10px 26px rgba(7,48,56,.07)}
.m.me{background:linear-gradient(145deg,color-mix(in srgb,var(--me) 94%,var(--ac) 6%),var(--me));border-color:color-mix(in srgb,var(--ac) 22%,var(--bd));border-radius:17px 17px 5px 17px}
[data-theme=dark] .m{background:linear-gradient(145deg,rgba(18,43,51,.96),rgba(12,32,40,.92));box-shadow:0 9px 25px rgba(0,0,0,.13),inset 0 1px rgba(255,255,255,.025)}[data-theme=dark] .m.me{background:linear-gradient(145deg,#10534f,#103d43);border-color:rgba(66,226,210,.2)}
.m .ac{border-color:var(--bd)}.dsep{border:1px solid var(--bd);background:var(--pn);backdrop-filter:blur(12px);box-shadow:var(--sh-sm);letter-spacing:.45px}
.send{background:var(--pn);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-top:1px solid var(--bd);padding:12px clamp(10px,2vw,24px) max(12px,env(safe-area-inset-bottom));gap:8px}[data-theme=dark] .send{background:rgba(9,27,34,.94)}
textarea#inp{min-width:0;background:color-mix(in srgb,var(--bg) 78%,transparent);border:1px solid var(--bd);border-radius:18px;padding:12px 16px;max-height:128px}textarea#inp:focus{border-color:var(--ac);box-shadow:0 0 0 3px color-mix(in srgb,var(--ac) 15%,transparent)}.send button:not(.g){box-shadow:0 7px 18px color-mix(in srgb,var(--ac) 25%,transparent)}
.empty{color:var(--mt);gap:18px}.empty::before{border:1px solid rgba(255,255,255,.2);box-shadow:0 22px 48px rgba(0,145,139,.18),inset 0 1px rgba(255,255,255,.3);animation:crystalFloat 5s ease-in-out infinite}@keyframes crystalFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.auth{background:var(--pn);backdrop-filter:blur(22px);border:1px solid var(--bd)}input,textarea{color:var(--tx)}button{touch-action:manipulation}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--ac);outline-offset:3px}
@media(max-width:700px){.layout{grid-template-columns:minmax(0,1fr)}.layout:not(.open) .side{display:flex}.layout.open .side{display:none}.layout.open .chat{display:flex}.side>.bar:first-child{min-height:62px;padding:10px 12px}.side>.bar:nth-child(2){padding:10px 12px}.item{min-height:64px}.chat>.bar{min-height:62px;padding:9px 10px;gap:6px}.chat>.bar>b{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.chat>.bar button.g{width:36px;height:36px;flex:none}.msgs{padding:16px 11px;gap:8px}.m{max-width:88%;padding:10px 12px}.send{padding:9px 9px max(9px,env(safe-area-inset-bottom));gap:6px}.send button{min-width:38px;height:40px;padding:0 10px}.send button.g{min-width:34px;padding:0 7px}textarea#inp{padding:10px 12px;border-radius:16px;font-size:16px}}
@media(max-width:380px){.side>.bar:first-child .row button.g{padding:6px}.side>.bar:first-child .row{gap:0}.send{gap:4px}.send button{min-width:34px;padding:0 8px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}

/* Signed-in account identity (read-only, real authenticated profile) */
.profile-card{display:flex;align-items:center;gap:11px;padding:13px 16px;margin:8px 12px 12px;border:1px solid var(--bd);border-radius:17px;background:linear-gradient(120deg,color-mix(in srgb,var(--ac) 7%,var(--pn)),var(--pn));box-shadow:var(--sh-sm);min-width:0}
.profile-card .av{width:40px;height:40px;flex:none}.profile-copy{display:flex;flex-direction:column;gap:1px;min-width:0}.profile-copy b{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-copy small{font-size:11px;color:var(--mt);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:700px){.profile-card{margin:6px 10px max(8px,env(safe-area-inset-bottom));padding:10px 12px}}