:root{color-scheme:dark;--bg:#09121b;--panel:#111e2a;--panel2:#142330;--line:#2a3e4d;--ink:#edf5f4;--muted:#9bafb8;--accent:#8be1ba;--accent-dark:#173b32;--danger:#fa8190}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;min-height:100vh;background:radial-gradient(circle at 18% 12%,#17372f 0,transparent 30%),radial-gradient(circle at 85% 90%,#102c39 0,transparent 34%),var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body:before{content:"";position:fixed;inset:0;z-index:-1;opacity:.12;background-image:linear-gradient(#fff1 1px,transparent 1px),linear-gradient(90deg,#fff1 1px,transparent 1px);background-size:42px 42px;pointer-events:none}
main{max-width:1200px;margin:auto;padding:32px}
.brand{display:flex;gap:11px;align-items:center;font-size:13px;font-weight:800;letter-spacing:.2em}
.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:var(--accent);color:#0b261e;font-size:20px;letter-spacing:0}
.auth-layout{min-height:calc(100vh - 64px);display:grid;grid-template-columns:1.1fr minmax(360px,430px);align-items:center;gap:8vw}
.intro{max-width:600px}.intro .brand{margin-bottom:86px}.eyebrow{font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--accent)}.pulse{display:inline-block;width:7px;height:7px;margin-right:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px #8be1ba18}
.intro h1{font-size:clamp(42px,5vw,72px);line-height:1.07;letter-spacing:-.055em;margin:19px 0 23px;font-weight:750}.intro h1 em{font-style:normal;color:var(--accent)}.intro>p{font-size:17px;line-height:1.7;color:var(--muted);max-width:510px;margin:0}.intro-foot{display:flex;flex-wrap:wrap;gap:12px;margin-top:55px;color:#a9c8c1;font-size:12px}.intro-foot span{border:1px solid #37604c;border-radius:100px;padding:7px 11px;background:#17382a77}
.card{background:linear-gradient(150deg,#152631ed,#101c28f5);border:1px solid var(--line);border-radius:20px;box-shadow:0 28px 70px #0006}
.auth-card{padding:30px;min-width:0}.card-top{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.15em}.secure-dot{color:var(--accent);letter-spacing:0;font-weight:600}.auth-card h2{font-size:26px;line-height:1.2;letter-spacing:-.025em;margin:32px 0 6px}.subtle{color:var(--muted);margin:0 0 23px}
.tabs{display:flex;gap:6px;background:#09151f;padding:5px;border:1px solid #243b48;border-radius:11px;margin-bottom:24px}.tabs button{flex:1;min-width:0;padding:10px 6px;border:0;background:transparent;color:var(--muted);font-weight:700}.tabs button[aria-selected=true]{background:#294b3e;color:#eafff3;box-shadow:0 3px 9px #0004}
form{display:grid;gap:15px}label{display:grid;gap:7px;font-size:13px;font-weight:650;color:#d9e7e7}.optional{display:inline;color:var(--muted);font-weight:400;margin-left:4px}input,textarea,button{font:inherit;border-radius:10px}input,textarea{width:100%;padding:12px 13px;background:#0b1722;border:1px solid #314653;color:var(--ink);outline:none}input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #8be1ba22}input::placeholder,textarea::placeholder{color:#79929e}button{cursor:pointer;border:1px solid transparent;padding:10px 14px;transition:background .15s,border-color .15s,transform .15s}button:hover:not(:disabled){transform:translateY(-1px)}button:disabled{opacity:.6;cursor:wait}.primary{display:flex;justify-content:center;align-items:center;gap:10px;background:var(--accent);color:#09241b;font-weight:800;margin-top:4px}.primary:hover:not(:disabled){background:#b0f6d3}.secondary{background:#203a3e;color:#d7f0e7;border-color:#3d625a}.secondary:hover:not(:disabled){background:#2b4a4b}.danger{background:#422c36;color:#ffd8dd;border-color:#804652}.form-hint{margin:0;color:var(--muted);font-size:13px}.note{white-space:pre-wrap;overflow-wrap:anywhere;color:var(--accent);font-size:13px;margin:15px 0 0}.note:empty{display:none}.note.bad{color:var(--danger)}.auth-foot{border-top:1px solid var(--line);padding-top:16px;margin:22px 0 0;color:var(--muted);font-size:11px;text-align:center}
.app-header{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:22px}.header-actions{display:flex;align-items:center;gap:15px;color:var(--muted)}.header-actions button{background:#21343c;color:var(--ink);border-color:var(--line)}.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:18px}.sidebar{padding:18px;max-height:calc(100vh - 120px);overflow:auto}.sidebar h2{font-size:11px;color:var(--muted);letter-spacing:.15em;text-transform:uppercase;margin:12px 0 10px}.sidebar h2:not(:first-child){margin-top:30px}.heading-dot{display:inline-block;width:6px;height:6px;background:var(--accent);border-radius:50%}.contact{display:flex;align-items:center;justify-content:space-between;width:100%;margin:4px 0;text-align:left;background:#172a35;color:var(--ink);border-color:transparent}.contact:hover,.contact.active{background:#244b43;border-color:#4d846b}.online{color:var(--accent)}.offline{color:#778f99}.sidebar>.secondary,#master-tools>.secondary,#master-tools>.danger{width:100%;text-align:left;margin-top:7px}#master-tools{border-top:1px solid var(--line);margin-top:22px;padding-top:3px}#master-tools label{color:var(--muted);font-size:12px;margin:12px 0}
.chat{min-height:calc(100vh - 120px);display:grid;grid-template-rows:auto minmax(0,1fr) auto;overflow:hidden}.chat-heading{padding:22px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px}.chat-heading h2{font-size:22px;letter-spacing:-.025em;margin:3px 0 0}.chat-lock{font-size:12px;color:var(--accent);border:1px solid #396650;border-radius:100px;padding:5px 10px}#messages{min-height:350px;max-height:calc(100vh - 340px);overflow:auto;padding:18px 24px}.empty-state{color:var(--muted);text-align:center;margin:20vh auto 0}.msg{max-width:75%;width:max-content;margin:9px 0;padding:10px 14px;border-radius:14px 14px 14px 4px;background:#233847;white-space:pre-wrap;overflow-wrap:anywhere}.msg.mine{margin-left:auto;background:#205140;border-radius:14px 14px 4px 14px}.meta{font-size:11px;color:#b8d1d1;margin-bottom:3px}#composer{display:flex;align-items:end;gap:10px;padding:16px 20px;border-top:1px solid var(--line)}#composer textarea{resize:vertical;min-height:50px;max-height:180px}#composer button{white-space:nowrap;min-height:50px}dialog{background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:16px;max-width:min(90vw,520px);padding:24px}dialog::backdrop{background:#000b}dialog form{gap:20px}#modal-body{white-space:pre-wrap;overflow-wrap:anywhere}
.delivery{margin-top:5px;text-align:right;font-size:11px;color:#c5d2d4}.delivery .bi{font-size:15px;vertical-align:-1px}.delivery.read{color:#83e7bd}.delivery.expired,.delivery.omitted{color:#ffb5bd}
@media(max-width:850px){.auth-layout{grid-template-columns:minmax(0,1fr);gap:26px;max-width:480px;margin:auto;padding:24px 0}.intro{min-width:0}.intro .brand{margin-bottom:26px}.intro h1{font-size:42px}.intro-foot{display:none}.auth-card{padding:24px}.layout{grid-template-columns:1fr}.sidebar{max-height:none}.chat{min-height:70vh}#messages{max-height:60vh}}
@media(max-width:520px){main{padding:14px}.auth-layout{min-height:calc(100vh - 28px)}.intro h1{font-size:38px}.intro>p{font-size:14px}.auth-card{padding:20px}.app-header{align-items:flex-start}.header-actions{flex-direction:column;align-items:end;gap:5px}.chat-heading{padding:16px}#messages{padding:13px}#composer{padding:10px}#composer button{padding:10px}}

/* Public landing and account-link flow */
.site-nav{display:flex;justify-content:space-between;align-items:center;padding:8px 0 28px}.site-nav button{min-width:112px}.bi{font-size:1.06em}.hero{position:relative;padding:90px 0 72px;min-height:570px}.hero h1{font-size:clamp(44px,6.4vw,86px);line-height:1.08;letter-spacing:-.06em;max-width:900px;margin:20px 0}.hero h1 em{font-style:normal;color:var(--accent)}.hero>p{max-width:620px;color:var(--muted);font-size:18px;line-height:1.7}.hero-actions{display:flex;align-items:center;gap:25px;margin-top:30px}.hero-actions .primary{padding:14px 19px}.text-link{color:var(--ink);text-decoration:none}.text-link:hover{color:var(--accent)}.hero-visual{position:absolute;right:2%;bottom:54px;width:36%;height:235px;pointer-events:none}.visual-card{position:absolute;display:flex;align-items:center;gap:13px;padding:19px 21px;border:1px solid #509977;border-radius:16px;background:#163b38d9;box-shadow:0 18px 50px #0008;backdrop-filter:blur(10px);font-size:13px}.visual-card .bi{font-size:23px;color:var(--accent)}.visual-card.first{top:5px;right:12%}.visual-card.second{bottom:14px;left:2%}.visual-line{position:absolute;width:200px;height:90px;top:72px;left:20%;border:1px solid #75dcb2;border-radius:100%;transform:rotate(-22deg);opacity:.5}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.feature{padding:27px;min-height:214px;border:1px solid var(--line);border-radius:17px;background:var(--panel)}.feature>.bi{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;background:#224e3d;color:var(--accent);font-size:21px}.feature h2{font-size:18px;margin:20px 0 8px}.feature p{color:var(--muted);margin:0}.how{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;margin:95px 0;padding:40px 0;border-top:1px solid var(--line)}.how h2{font-size:clamp(26px,3vw,42px);letter-spacing:-.04em;line-height:1.15;margin:15px 0}.how ol{list-style:none;padding:0;margin:0}.how li{display:flex;gap:23px;padding:15px 0;border-bottom:1px solid var(--line)}.how li>span{font-size:12px;color:var(--accent);font-weight:800;letter-spacing:.12em}.how strong{font-size:17px}.how p{margin:4px 0;color:var(--muted)}.site-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:25px 0;color:var(--muted);font-size:12px}.site-footer>span:first-child{letter-spacing:.2em;color:var(--ink);font-weight:800}.site-footer a{color:var(--accent)}
.back-link{background:transparent;color:var(--muted);padding:5px 0;margin-bottom:36px}.back-link:hover{color:var(--accent)}.auth-layout .intro .brand{margin-bottom:70px}.link-button{text-decoration:none;text-align:center;padding:13px}.step-icon{display:grid;place-items:center;width:58px;height:58px;background:#234c40;color:var(--accent);font-size:27px;border-radius:17px;margin:18px 0}.auth-card h3{font-size:22px;margin:0 0 8px}#telegram-step p{color:var(--muted);line-height:1.65;margin:0 0 20px}#telegram-step .wide{margin-top:12px}.wide{width:100%}.sidebar-tip{color:var(--muted);font-size:12px;margin:9px 2px 0}#find-user{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:7px}#find-user input{min-width:0}#find-user button{padding:10px 14px}.invite-card{background:#1b3540;border:1px solid var(--line);border-radius:10px;padding:10px;margin:8px 0}.invite-card strong{display:block;margin-bottom:7px}.invite-actions{display:flex;gap:7px}.invite-actions button{flex:1;padding:7px}.empty-small{color:var(--muted);font-size:12px;margin:9px 0}.contact.active{border-color:var(--accent)}
@media(max-width:850px){.hero{padding:55px 0 60px;min-height:0}.hero-visual{position:relative;width:100%;max-width:430px;right:auto;bottom:auto;height:170px;margin-top:35px}.feature-grid{grid-template-columns:1fr}.feature{min-height:0}.how{grid-template-columns:1fr;gap:15px;margin:60px 0}.auth-layout .intro .brand{margin-bottom:30px}}
@media(max-width:520px){.hero h1{font-size:42px}.hero>p{font-size:15px}.hero-actions{align-items:stretch;flex-direction:column;gap:18px}.hero-visual{height:155px}.visual-card{padding:12px;font-size:11px}.visual-card.first{right:2%}.visual-card.second{left:1%}.site-footer{flex-direction:column}.how{padding:25px 0}.feature{padding:22px}}