:root{
  --accent:#2f9bff;
  --danger:#ff5c5c;
  --radius:18px;
}
html[data-theme="dark"]{
  color-scheme:dark;
  --bg:#090909;
  --sidebar:#0d0d0d;
  --panel:#111;
  --panel2:#181818;
  --panel3:#232323;
  --line:#292929;
  --line-strong:#343434;
  --text:#f5f5f5;
  --muted:#949494;
  --faint:#6f6f6f;
  --bubble:#1b1b1b;
  --bubble-line:#242424;
  --mine:#183b59;
  --mine-line:#1d4d73;
  --input:#171717;
  --overlay:rgba(0,0,0,.82);
  --shadow:rgba(0,0,0,.46);
  --hover:#171717;
}
html[data-theme="light"]{
  color-scheme:light;
  --bg:#f4f4f2;
  --sidebar:#eeeeeb;
  --panel:#ffffff;
  --panel2:#f2f2ef;
  --panel3:#e4e4df;
  --line:#d8d8d2;
  --line-strong:#c8c8c1;
  --text:#151515;
  --muted:#70706b;
  --faint:#92928c;
  --bubble:#ffffff;
  --bubble-line:#e0e0da;
  --mine:#dceefe;
  --mine-line:#c7e1f8;
  --input:#ffffff;
  --overlay:rgba(20,20,20,.45);
  --shadow:rgba(25,25,25,.16);
  --hover:#e6e6e1;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Arial,sans-serif}
body{overflow:hidden}
button,input,textarea{font:inherit}
button{touch-action:manipulation}
.app-shell{height:100dvh;display:grid;grid-template-columns:290px 1fr;background:var(--bg)}
.sidebar{border-right:1px solid var(--line);padding:18px 14px;display:flex;flex-direction:column;background:var(--sidebar);z-index:30;overflow-y:auto;overscroll-behavior:contain}
.brand-row,.topbar{display:flex;align-items:center}
.brand{font-weight:850;font-size:24px;letter-spacing:-1px}
.brand span{color:var(--accent)}
.sidebar-caption{font-size:11px;color:var(--muted);letter-spacing:.14em;font-weight:750}
.sidebar-caption{margin:28px 10px 10px}
.private-caption{margin-top:24px}
.room-list,.private-list{display:flex;flex-direction:column;gap:6px}
.room,.private-chat{width:100%;border:0;background:transparent;color:var(--text);border-radius:14px;padding:13px 12px;display:flex;align-items:center;gap:10px;text-align:left;cursor:pointer}
.room:hover,.private-chat:hover{background:var(--hover)}
.room.active,.private-chat.active{background:var(--panel3)}
.room-name,.private-name{flex:1;font-weight:680;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.room-count,.private-status{font-size:12px;color:var(--muted)}
.private-empty{padding:11px 12px;color:var(--faint);font-size:13px}
.presence-dot{width:8px;height:8px;border-radius:50%;background:var(--faint);flex:0 0 auto}
.presence-dot.online{background:#2cbf67;box-shadow:0 0 0 3px rgba(44,191,103,.12)}
.sidebar-bottom{margin-top:auto;display:flex;gap:8px;align-items:center;padding:14px 6px 0}
.sidebar-user-wrap{min-width:0;flex:1}
.user-badge{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;color:var(--text)}
.theme-badge{font-size:10px;color:var(--muted);margin-top:4px}
.ghost-btn,.primary-btn{border-radius:12px;padding:10px 13px;border:1px solid var(--line);background:var(--panel2);color:var(--text);cursor:pointer}
.primary-btn{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:750}
.primary-btn:disabled,.send-btn:disabled{opacity:.45;cursor:not-allowed}
.chat-panel{min-width:0;display:flex;flex-direction:column;height:100dvh;background:var(--bg)}
.topbar{height:72px;padding:0 22px;border-bottom:1px solid var(--line);gap:14px;background:color-mix(in srgb,var(--bg) 94%,transparent);backdrop-filter:blur(16px)}
.topbar .brand{margin-left:auto;font-size:18px}
.room-title{font-size:18px;font-weight:780}
.online-label{font-size:12px;color:var(--muted);margin-top:2px}
.messages{flex:1;overflow-y:auto;padding:26px max(24px,calc((100vw - 1000px)/2)) 120px;scroll-behavior:smooth}
.message{margin:0 0 18px;max-width:760px}
.message-meta{display:flex;align-items:baseline;gap:8px;margin-bottom:5px}
.message-user{font-weight:760;font-size:14px;color:var(--text)}
button.message-user{appearance:none;border:0;background:transparent;padding:0;cursor:pointer}
.message-user.clickable:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.message-time{font-size:11px;color:var(--faint)}
.message-body{display:inline-block;background:var(--bubble);border:1px solid var(--bubble-line);border-radius:8px 18px 18px 18px;padding:10px 13px;line-height:1.42;white-space:pre-wrap;overflow-wrap:anywhere;box-shadow:0 4px 16px color-mix(in srgb,var(--shadow) 28%,transparent)}
.message.mine{margin-left:auto;text-align:right}
.message.mine .message-meta{justify-content:flex-end}
.message.mine .message-body{background:var(--mine);border-color:var(--mine-line);border-radius:18px 8px 18px 18px;text-align:left}
.empty{height:100%;min-height:300px;display:grid;place-items:center;color:var(--faint);text-align:center}
.composer{position:fixed;left:calc(290px + max(24px,(100vw - 1000px)/2));right:max(24px,calc((100vw - 1000px)/2));bottom:max(18px,env(safe-area-inset-bottom));display:flex;align-items:flex-end;gap:10px;padding:9px 9px 9px 16px;border:1px solid var(--line-strong);background:var(--input);border-radius:28px;box-shadow:0 12px 40px var(--shadow)}
.composer.disabled{opacity:.72}
.composer textarea{flex:1;resize:none;border:0;outline:0;background:transparent;color:var(--text);max-height:130px;min-height:34px;padding:7px 0;line-height:20px}
.composer textarea::placeholder{color:var(--muted)}
.send-btn,.icon-btn{border:0;cursor:pointer;color:white;background:var(--accent);width:44px;height:44px;border-radius:50%;font-weight:800;font-size:24px;display:grid;place-items:center;flex:0 0 auto}
.icon-btn{background:var(--panel2);border:1px solid var(--line);color:var(--text);font-size:20px}
.modal-layer{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:var(--overlay);padding:18px;overflow-y:auto;overscroll-behavior:contain}
.auth-card,.confirm-card{width:min(480px,100%);background:var(--panel);border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:0 24px 80px var(--shadow);position:relative}
.auth-logo{font-size:30px;font-weight:850;letter-spacing:-1.5px}
.auth-logo span{color:var(--accent)}
.auth-card h1{font-size:30px;margin:18px 0 8px;letter-spacing:-1px}
.auth-card p,.confirm-card p{color:var(--muted);line-height:1.5}
.tabs{display:flex;gap:5px;padding:4px;background:var(--bg);border-radius:14px;margin:20px 0}
.tab{flex:1;border:0;background:transparent;color:var(--muted);padding:10px 7px;border-radius:11px;cursor:pointer}
.tab.active{background:var(--panel3);color:var(--text)}
.auth-form{display:grid;gap:10px}
.auth-form input{width:100%;border:1px solid var(--line-strong);background:var(--input);color:var(--text);padding:14px 15px;border-radius:14px;outline:0}
.auth-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 13%,transparent)}
.auth-form button{border:0;border-radius:14px;padding:14px;background:var(--accent);color:white;font-weight:800;cursor:pointer}
.error{color:var(--danger);min-height:20px;font-size:13px;margin-top:10px}
.hidden{display:none!important}
.confirm-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}
.toast{position:fixed;left:50%;bottom:100px;transform:translateX(-50%) translateY(20px);opacity:0;background:var(--panel3);color:var(--text);border:1px solid var(--line-strong);border-radius:14px;padding:10px 14px;z-index:200;transition:.2s;pointer-events:none;box-shadow:0 10px 34px var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.mobile-only{display:none}
.user-card{text-align:center;padding-top:34px}
.modal-close{position:absolute;right:14px;top:14px;width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:var(--panel2);color:var(--text);font-size:22px;cursor:pointer}
.user-avatar{width:72px;height:72px;border-radius:50%;display:grid;place-items:center;margin:0 auto 14px;background:var(--panel3);border:1px solid var(--line);font-size:26px;font-weight:850}
.user-card h2{margin:0;font-size:24px}
.wide-btn{width:100%;padding:13px 16px}
.invite-kicker{font-size:11px;color:var(--accent);font-weight:800;letter-spacing:.14em}

@media(max-width:760px){
  .app-shell{display:block}
  .sidebar{position:fixed;inset:0 18% 0 0;transform:translateX(-102%);transition:.2s ease;box-shadow:20px 0 50px var(--shadow)}
  .sidebar.open{transform:translateX(0)}
  .mobile-only{display:grid}
  .desktop-only{display:none!important}
  .topbar{height:64px;padding:0 13px}
  .messages{padding:18px 13px 108px}
  .message{max-width:88%}
  .composer{left:12px;right:12px;bottom:max(10px,env(safe-area-inset-bottom));border-radius:26px}
  .auth-card{padding:22px;border-radius:24px;margin:auto 0}
  .auth-card h1{font-size:26px}
  .tabs{overflow-x:auto}
  .tab{min-width:max-content;padding-inline:12px}
  .send-btn{width:42px;height:42px}
  .room-title{font-size:16px}
}

@media(max-width:390px){
  .auth-card{padding:18px}
  .auth-card h1{font-size:24px}
}

/* v4: отметки 18+ и упрощённый экран входа */
.room-meta{display:flex;align-items:center;justify-content:flex-end;gap:6px;flex:0 0 auto}
.room-adult{display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:20px;padding:0 6px;border:1px solid var(--danger);border-radius:999px;color:var(--danger);font-size:10px;font-weight:850;letter-spacing:.02em;line-height:1}
.auth-card-simple{width:min(430px,100%)}
.age-badge-large{display:inline-flex;align-items:center;justify-content:center;min-width:52px;height:30px;padding:0 10px;border:1px solid var(--danger);border-radius:999px;color:var(--danger);font-size:14px;font-weight:900;letter-spacing:.04em;margin-bottom:4px}

/* v5 */
.auth-label{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--muted);margin:2px 2px 0}
.guest-form{padding:14px;border:1px solid color-mix(in srgb,var(--accent) 38%,var(--line));border-radius:18px;background:color-mix(in srgb,var(--accent) 7%,var(--panel2))}
.guest-form button{font-size:15px;box-shadow:0 8px 24px color-mix(in srgb,var(--accent) 24%,transparent)}
.account-button{background:var(--panel3)!important;color:var(--text)!important;border:1px solid var(--line-strong)!important}
.auth-separator{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:11px;text-transform:uppercase;letter-spacing:.08em;margin:17px 2px 2px}
.auth-separator:before,.auth-separator:after{content:"";height:1px;background:var(--line);flex:1}
.user-type{font-size:12px;color:var(--muted);margin-top:5px}
.admin-user-card{text-align:left}
.admin-user-card .user-avatar{margin-left:auto;margin-right:auto}
.admin-user-card>h2,.admin-user-card>.user-type,.admin-user-card>#userModalText{text-align:center}
.admin-panel{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);text-align:left}
.admin-kicker{font-size:10px;font-weight:850;letter-spacing:.13em;color:var(--accent);margin-bottom:10px}
.admin-info{display:grid;gap:7px;font-size:13px;margin-bottom:12px}
.admin-row{display:grid;grid-template-columns:120px 1fr;gap:10px;align-items:start;padding:7px 0;border-bottom:1px solid var(--line)}
.admin-row span:first-child{color:var(--muted)}
.admin-row span:last-child{overflow-wrap:anywhere}
.admin-loading{color:var(--muted);padding:8px 0}
.admin-reason{width:100%;border:1px solid var(--line-strong);background:var(--input);color:var(--text);padding:12px 13px;border-radius:12px;outline:0;margin:4px 0 9px}
.danger-btn{border:1px solid var(--danger);background:color-mix(in srgb,var(--danger) 13%,var(--panel2));color:var(--danger);border-radius:12px;padding:11px 13px;cursor:pointer;font-weight:800}
.message-admin-actions{display:inline-flex;gap:5px;margin-left:4px}
.message-delete{border:0;background:transparent;color:var(--danger);font-size:11px;padding:1px 4px;cursor:pointer;opacity:.75}
.message-delete:hover{opacity:1;text-decoration:underline}
.admin-badge{display:inline-flex;align-items:center;height:18px;padding:0 6px;border-radius:999px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-size:9px;font-weight:900;letter-spacing:.04em}
.guest-badge{display:inline-flex;align-items:center;height:18px;padding:0 6px;border-radius:999px;background:var(--panel3);color:var(--muted);font-size:9px;font-weight:800}
@media(max-width:520px){.admin-row{grid-template-columns:92px 1fr}.guest-form{padding:12px}}