:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:#030a1b;color:#eef4ff;--panel:rgba(9,22,52,.82);--panel2:#091938;--line:rgba(89,139,255,.28);--text:#eef4ff;--muted:#8097c7;--blue:#357cff;--cyan:#19c8ff;--violet:#795cff}
[hidden]{display:none!important}
.auth-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.auth-actions .secondary{width:100%}.advanced-config{margin-top:14px;color:var(--muted);font-size:12px}.advanced-config input{margin-top:8px}.section-label{margin:18px 0 8px;color:#7e9bd5;font-size:11px;text-transform:uppercase;letter-spacing:.12em}
.mobile-drawer{position:fixed;inset:0;z-index:20}.drawer-scrim{position:absolute;inset:0;background:#0009;backdrop-filter:blur(8px)}.drawer-panel{position:absolute;left:0;top:0;bottom:0;width:min(86vw,340px);padding:20px;background:#071735;border-right:1px solid #4e8dff99;box-shadow:20px 0 50px #0009;animation:drawer-in .2s ease-out}.drawer-head{display:flex;justify-content:space-between;align-items:center;font-size:19px;margin-bottom:18px}.drawer-head button{border:0;background:transparent;color:#fff;font-size:26px}.drawer-chat{width:100%;padding:14px;text-align:left;border:1px solid var(--line);border-radius:13px;background:#0d2859;color:#fff;font-size:15px}.drawer-group{display:flex;align-items:center;gap:8px;width:100%;margin-bottom:8px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#081d42;color:#fff;text-align:left}.drawer-group small{display:block;color:var(--muted);margin-top:3px}@keyframes drawer-in{from{transform:translateX(-100%)}to{transform:none}}
.mobile-menu{display:none}.drawer-tools{padding:12px 0 4px;margin:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.drawer-search{display:flex;gap:8px}.drawer-search input{margin:0;min-width:0}.drawer-search button{width:46px;border:1px solid #4e8dff;background:linear-gradient(135deg,#1b87ff,#4037ff);color:#fff;border-radius:13px;font-size:18px}
.account-email{margin:4px 0 18px;color:#7092d1;font-size:12px;word-break:break-all}.logout-btn{width:100%;margin-top:10px;padding:12px;border:1px solid #ff668077;border-radius:13px;background:#38152b;color:#ff9db0;font-weight:700}
@media(max-width:700px){.mobile-menu{display:block}.topbar{gap:10px}.topbar>div{min-width:0;flex:1}.topbar h2{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.drawer-panel{width:min(92vw,380px);overflow:auto;padding:18px 16px 28px}.drawer-panel .section-label{margin-top:16px}.drawer-panel .secondary{font-size:13px}.drawer-group{min-height:54px}.chat-head{padding:13px 16px}.chat-head .muted{display:block;max-width:55vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.message{max-width:88%}.composer{padding:10px}.composer input{min-height:46px}.send-btn{width:48px}.action-sheet button{min-height:48px}}
*{box-sizing:border-box}body{margin:0;min-height:100svh;background:radial-gradient(circle at 80% 0,#102a70 0,transparent 38%),radial-gradient(circle at 5% 100%,#092b68 0,transparent 34%),#030a1b}.app-shell{min-height:100svh;padding:18px;display:grid;place-items:center}.auth-card,.messenger{width:min(1120px,100%);border:1px solid var(--line);background:linear-gradient(145deg,rgba(11,31,73,.92),rgba(3,11,29,.96));box-shadow:0 24px 80px rgba(0,0,0,.35),0 0 38px rgba(36,103,255,.12);border-radius:24px}.auth-card{max-width:470px;padding:32px}.brand-mark{display:grid;place-items:center;width:54px;height:54px;border-radius:17px;background:linear-gradient(135deg,var(--cyan),var(--violet));font-size:28px;box-shadow:0 0 28px #246dff88}.eyebrow{margin:0 0 8px;color:#76a4ff;font-size:11px;font-weight:800;letter-spacing:.16em}.auth-card h1{margin:0 0 10px;font-size:30px}.muted,.hint{color:var(--muted)}label{display:grid;gap:7px;margin:18px 0;font-size:12px;color:#9eb5e5}input{width:100%;border:1px solid var(--line);border-radius:13px;background:#06142f;color:var(--text);padding:13px 14px;outline:none;font:inherit}input:focus{border-color:#4a99ff;box-shadow:0 0 0 3px #2774ff22}.primary,.secondary,.send-btn{border:1px solid #4e8dff;background:linear-gradient(135deg,#1b87ff,#4037ff);color:#fff;font-weight:800;border-radius:13px;padding:13px 18px;cursor:pointer}.primary{width:100%;margin-top:8px}.secondary{width:100%;background:#10275a}.hint{font-size:12px}.messenger{overflow:hidden}.topbar{display:flex;justify-content:space-between;align-items:center;padding:22px 26px;border-bottom:1px solid var(--line)}h2,h3{margin:0}.topbar h2{font-size:23px}.connection{color:#43e6a0;font-size:12px}.icon-btn{border:1px solid var(--line);background:#0b2150;color:white;border-radius:12px;padding:10px 13px;font-size:18px}.layout{display:grid;grid-template-columns:290px 1fr;min-height:650px}.sidebar{padding:18px;border-right:1px solid var(--line);background:#061432}.chat-item{width:100%;display:flex;align-items:center;gap:12px;text-align:left;border:1px solid transparent;background:transparent;color:var(--text);padding:12px;border-radius:16px;cursor:pointer}.chat-item.active,.chat-item:hover{background:linear-gradient(135deg,#123578,#111b55);border-color:#397cff;box-shadow:0 0 22px #246dff33}.chat-item small,.profile-mini small{display:block;color:var(--muted);margin-top:4px}.avatar{width:42px;height:42px;flex:0 0 42px;border-radius:14px;display:grid;place-items:center;font-weight:900;font-size:19px}.cyan{background:linear-gradient(135deg,#18c9ff,#2557ff)}.violet{background:linear-gradient(135deg,#a14dff,#3736ef)}.divider{height:1px;background:var(--line);margin:18px 0}.compact-label{margin:0 0 10px}.profile-mini{display:flex;align-items:center;gap:10px;margin-top:28px;padding-top:18px;border-top:1px solid var(--line)}.chat-panel{display:flex;flex-direction:column;min-width:0}.chat-head{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line)}.chat-head h3{font-size:17px}.online-dot{margin-left:auto;width:9px;height:9px;border-radius:50%;background:#33df87;box-shadow:0 0 12px #33df87}.messages{flex:1;min-height:0;overflow:auto;padding:22px;display:flex;flex-direction:column;gap:10px;background:radial-gradient(circle at 70% 40%,#142d7b55,transparent 45%)}.empty-state{margin:auto;color:var(--muted);font-size:14px}.message{max-width:min(78%,560px);padding:10px 13px;border:1px solid var(--line);border-radius:16px 16px 16px 5px;background:#0d2250;animation:message-in .22s ease-out}.message.mine{align-self:flex-end;border-radius:16px 16px 5px 16px;background:linear-gradient(135deg,#225ee9,#3a36b9);border-color:#5c9aff}.message .meta{font-size:11px;color:#a9c0ef;margin-bottom:4px}.message .time{font-size:10px;color:#9db8ed;margin-left:8px}.composer{display:flex;gap:10px;padding:16px;border-top:1px solid var(--line);background:#061432}.composer input{border-radius:18px}.send-btn{width:52px;padding:0;border-radius:17px;font-size:20px}.bottom-nav{display:none}@keyframes message-in{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}@media(max-width:700px){.app-shell{padding:0;display:block}.auth-card,.messenger{min-height:100svh;border-radius:0;border:0}.auth-card{padding:28px 20px}.topbar{padding:18px 16px}.layout{display:block;min-height:calc(100svh - 130px)}.sidebar{display:none}.chat-panel{height:calc(100svh - 130px)}.messages{padding:16px}.bottom-nav{display:flex;height:64px;border-top:1px solid var(--line);background:#061432}.bottom-nav button{flex:1;border:0;background:transparent;color:#7895ce;font-size:18px}.bottom-nav button.active{color:#fff}.bottom-nav small{display:block;font-size:10px;margin-top:2px}.auth-card h1{font-size:27px}}
/* Premium interaction layer */
.attach-btn{width:46px;flex:0 0 46px;border:1px solid var(--line);border-radius:16px;background:#0b2250;color:#b9d7ff;font-size:24px;cursor:pointer}.attachment-preview{display:flex;align-items:center;gap:10px;padding:8px 16px;border-top:1px solid var(--line);background:#0a1d41;color:#cde0ff;font-size:12px}.attachment-preview img{width:42px;height:42px;object-fit:cover;border-radius:8px}.attachment-preview button{margin-left:auto;border:0;background:transparent;color:#ff9db0;font-size:18px}.message-attachment{display:block;margin-top:8px;max-width:100%;border-radius:12px}.message-attachment.image{max-height:260px;object-fit:cover;cursor:pointer}.file-card{display:flex;align-items:center;gap:9px;padding:9px;border:1px solid #71a8ff55;border-radius:10px;background:#071a3d;color:#d7e6ff;text-decoration:none}.file-card strong{display:block;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-card small{display:block;color:#8faada;margin-top:3px}
.secondary.ghost{margin-top:8px;background:#0a1c3d;color:#9ebcff}.profile-mini{cursor:pointer}.message{position:relative;user-select:none}.message .status{font-size:11px;margin-left:5px;color:#a7c5ff}.reply-quote{border-left:3px solid #5ba5ff;padding:4px 8px;margin-bottom:7px;background:#06183a88;border-radius:5px;color:#b9cdf9;font-size:12px}.reaction-chips{display:flex;gap:5px;flex-wrap:wrap;margin-top:7px}.reaction-chip{padding:3px 7px;border:1px solid #71a8ff77;border-radius:99px;background:#071a3d;color:#fff;font-size:12px}.code-block{margin-top:8px;padding:10px;border:1px solid #5d85ff55;border-radius:10px;background:#020915;color:#b9d7ff;white-space:pre-wrap;font:12px ui-monospace,Consolas,monospace;overflow:auto}.reply-bar{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#0a1e43;border-top:1px solid var(--line);color:#cce0ff;font-size:12px}.reply-bar button{margin-left:auto;border:0;background:transparent;color:#fff;font-size:18px}.modal-backdrop{position:fixed;inset:0;z-index:10;display:grid;align-items:end;background:#0008;backdrop-filter:blur(12px)}.action-sheet,.profile-modal{width:min(520px,100%);margin:auto auto 0;padding:18px;border:1px solid #4e8dff99;border-radius:24px 24px 0 0;background:#071735;box-shadow:0 -12px 50px #0008}.action-sheet button{width:100%;border:0;border-bottom:1px solid #36558a66;background:transparent;color:#eef4ff;text-align:left;padding:15px;font-size:15px}.sheet-handle{width:45px;height:4px;border-radius:5px;background:#6f8fcb;margin:0 auto 16px}.reaction-row{display:flex;gap:4px;padding:10px 0}.reaction-row button{border:1px solid var(--line);border-radius:12px;padding:10px;text-align:center}.action-sheet .danger{color:#ff7d91}.action-sheet .ghost-action{text-align:center;color:#9ebcff}.profile-modal{margin:auto;border-radius:24px;max-width:440px;text-align:center}.close-modal{float:right;border:0;background:transparent;color:#fff;font-size:25px}.avatar.large{width:72px;height:72px;margin:4px auto 16px;font-size:30px}.achievement-card{text-align:left;margin-top:22px;padding:16px;border:1px solid var(--line);border-radius:16px;background:#0b2049}.achievement-card p{color:#b8caf0}.progress{height:8px;background:#142c57;border-radius:8px;overflow:hidden}.progress i{display:block;height:100%;width:5%;background:linear-gradient(90deg,#19c8ff,#8c50ff);border-radius:8px}@media(max-width:700px){.action-sheet{width:100%}}