:root{
  --bg:#0a0610; --panel:#0f0a19; --panel2:#120a20;
  --acc:#7a3cff; --acc2:#c084fc; --txt:#e8e6ee; --muted:#b7b1c4;
  --br:12px; --border:1px solid rgba(200,132,252,.12); --shadow:0 10px 30px rgba(122,60,255,.12);
}
*{box-sizing:border-box} html,body{height:100%}
body{margin:0;background:radial-gradient(900px 500px at 10% -5%, rgba(122,60,255,.20), transparent 60%), var(--bg);color:var(--txt);font:14px/1.35 Inter, system-ui;}
.layout{display:grid;grid-template-columns:340px 1fr;height:100vh;min-width:980px}

/* SIDEBAR */
.sidebar{display:grid;grid-template-rows:auto 1fr auto;background:var(--panel);border-right:var(--border)}
.sidebar-top{padding:12px;border-bottom:var(--border)}
.brand{display:flex;gap:10px;align-items:center;margin-bottom:10px}
.brand img{width:28px;height:28px}
.b-title{font-weight:700}.b-sub{color:var(--muted);font-size:12px}
.auth{display:flex;gap:8px;align-items:center;margin-bottom:10px}
.user-mini{font-size:12px;color:var(--muted)} .hidden{display:none}
.search input{width:100%;padding:10px 12px;background:#0b0712;border:var(--border);border-radius:10px;color:var(--txt)}
.chat-list{overflow:auto}
.chat-item{display:grid;grid-template-columns:44px 1fr auto;gap:10px;align-items:center;padding:10px 12px;cursor:pointer;border-bottom:1px solid rgba(200,132,252,.06)}
.chat-item:hover{background:#120a20}
.chat-item.active{background:#160c26}
.ava{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:#231038;color:#d6b6ff;font-weight:700}
.c-title{font-weight:600}
.c-last{color:var(--muted);font-size:12px;margin-top:2px}
.time{color:var(--muted);font-size:11px}

/* FOOTER LEFT */
.sidebar-bottom{padding:10px;border-top:var(--border);display:flex;justify-content:space-between}

/* MAIN */
.main{display:grid;grid-template-rows:auto 1fr auto;background:var(--panel2)}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px;border-bottom:var(--border);background:linear-gradient(90deg,#0e0718,#150b24)}
.title{font-weight:700}.meta{color:var(--muted);font-size:12px}
.messages{padding:14px;overflow:auto}
.placeholder{color:var(--muted);text-align:center;margin-top:60px}
.msg{max-width:70%;padding:10px 12px;border-radius:12px;border:var(--border);background:#120a1f;box-shadow:var(--shadow);margin:8px 0}
.msg.me{margin-left:auto;background:linear-gradient(160deg,#2a1450,#1a0e32 70%);border-color:rgba(122,60,255,.45)}
.meta-s{font-size:11px;color:var(--muted);margin-top:6px}
.composer{display:flex;gap:8px;padding:10px;border-top:var(--border);background:#0f0816}
.composer input{flex:1;background:#0b0712;border:var(--border);color:var(--txt);padding:10px 12px;border-radius:10px}
.composer button{width:56px;border-radius:10px;background:#1a0e32;border:1px solid rgba(122,60,255,.5);color:var(--txt);cursor:pointer}

/* BUTTONS */
button{font:inherit;cursor:pointer;border-radius:10px;border:var(--border);background:#140b22;color:var(--txt);padding:8px 10px}
button.primary{background:#261043;border-color:rgba(122,60,255,.5)}
button.ghost{background:#0f0a19}
button:active{transform:translateY(1px)}

/* MODAL */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:grid;place-items:center}
.modal-card{width:420px;max-width:calc(100vw - 32px);background:var(--panel);border:var(--border);border-radius:14px;box-shadow:var(--shadow)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:var(--border)}
.modal-body{padding:14px}
.tabs{display:flex;gap:8px;margin-bottom:10px}
.tab{background:#0f0a19;border:var(--border);padding:6px 10px;border-radius:999px}
.tab.active{background:#231038;border-color:rgba(122,60,255,.5)}
.form label{display:block;font-size:12px;color:var(--muted);margin-top:8px}
.form input{width:100%;padding:10px 12px;background:#0b0712;border:var(--border);border-radius:10px;color:var(--txt)}
.muted{color:var(--muted)} .s{font-size:12px}