:root{--orange:#ff6a1f;--dark:#111214;--panel:#1b1d20;--line:#303337;--text:#f6f4ef;--muted:#a6a6a6}
*{box-sizing:border-box}
body{margin:0;background:#0e0f11;color:var(--text);font-family:Manrope,Arial,sans-serif}
button,input,textarea{font:inherit}
.shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 20% 0,#402010 0,transparent 35%)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:20px;box-shadow:0 25px 70px #0008}
.welcome{width:min(470px,100%);padding:38px}
.logo{font:900 25px Arial;color:var(--orange);letter-spacing:-1px}
.eyebrow{font-size:11px;letter-spacing:2px;color:var(--orange);font-weight:800}
h1{font-size:28px;margin:18px 0 8px}
p{color:var(--muted);line-height:1.55}
.field{display:grid;gap:7px;margin:17px 0}
.field label{font-size:13px;font-weight:700}
.field input,.field textarea,.composer textarea{background:#111214;color:#fff;border:1px solid var(--line);border-radius:10px;padding:13px;outline:none}
.field input:focus,.composer textarea:focus{border-color:var(--orange)}
.btn{border:0;border-radius:9px;padding:13px 18px;background:var(--orange);color:#111;font-weight:800;cursor:pointer}
.btn.secondary{background:#2c2f34;color:#fff}
.btn.danger{background:#44231f;color:#ff9b75}
.error{color:#ff896e;font-size:13px;min-height:18px}
.hidden{display:none!important}
.chat{width:min(820px,100%);height:min(760px,calc(100vh - 38px));display:grid;grid-template-rows:auto 1fr auto;overflow:hidden}
.chat-head,.topbar{padding:19px 23px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.chat-head h2,.topbar h2{margin:0;font-size:16px}
.online{color:#67d391;font-size:12px}
.messages{padding:22px;overflow:auto;display:flex;flex-direction:column;gap:12px;background:#141518}
.bubble{max-width:76%;padding:11px 14px;border-radius:14px;background:#292c30;align-self:flex-start}
.bubble.mine{background:var(--orange);color:#161616;align-self:flex-end}
.bubble small{display:block;opacity:.65;font-size:10px;margin-bottom:5px}
.bubble a{display:block;color:inherit;font-weight:800}
.composer{padding:14px;border-top:1px solid var(--line);display:grid;grid-template-columns:auto 1fr auto;gap:9px;align-items:stretch}
.composer textarea{resize:none;min-height:56px}
.file{position:relative;display:grid;place-items:center;background:#2c2f34;border-radius:9px;cursor:pointer;overflow:hidden}
.file input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.upload-button{width:86px;min-height:56px;gap:2px;padding:7px 8px;color:#fff;text-align:center;align-content:center}
.file-icon{font-size:24px;font-weight:900;line-height:1;color:var(--orange)}
.file-text{font-size:11px;font-weight:800;line-height:1.12}
.upload-bubble{min-width:240px}
.upload-name{font-weight:800;margin-bottom:8px;word-break:break-word}
.upload-track{height:7px;background:#0003;border-radius:999px;overflow:hidden}
.upload-bar{height:100%;background:#111;border-radius:999px;transition:width .15s ease}
.bubble:not(.mine) .upload-bar{background:var(--orange)}
.upload-percent{font-size:11px;font-weight:800;margin-top:5px;opacity:.75;text-align:right}
.upload-error .upload-percent{color:#ff2d2d}
.dashboard{height:100vh;display:grid;grid-template-columns:330px 1fr}
.side{background:#181a1d;border-right:1px solid var(--line);display:grid;grid-template-rows:auto auto 1fr}
.side-head{padding:22px}
.toolbar{display:flex;gap:8px;padding:0 16px 15px}
.list{overflow:auto}
.conv{padding:15px 19px;border-top:1px solid var(--line);cursor:pointer}
.conv:hover,.conv.active{background:#2b211c}
.conv strong{display:flex;justify-content:space-between;font-size:13px}
.conv p{font-size:12px;margin:6px 0 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.panel-chat{display:grid;grid-template-rows:auto 1fr auto;min-width:0}
.empty{margin:auto;color:var(--muted);text-align:center}
.admin{width:min(980px,100%);margin:auto;padding:35px 20px}
.admin-head{display:flex;justify-content:space-between;align-items:center}
.admin-card{padding:24px}
.admin-spaced{margin-top:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:10px;align-items:end}
.table{width:100%;border-collapse:collapse;margin-top:20px}
.table td,.table th{text-align:left;padding:13px;border-top:1px solid var(--line);vertical-align:top}
.table small{color:var(--muted)}
.pill{padding:4px 8px;border-radius:30px;background:#16442b;color:#7ee2a7;font-size:11px}
.pill.off{background:#303236;color:#aaa}
@media(max-width:700px){
  .dashboard{grid-template-columns:1fr}
  .side{position:absolute;inset:0;z-index:2}
  .chat{height:100vh;border-radius:0}
  .shell{padding:0}
  .welcome{margin:16px}
  .form-row{grid-template-columns:1fr}
  .bubble{max-width:88%}
  .topbar{align-items:flex-start;gap:10px;flex-direction:column}
  .admin-head{align-items:flex-start;gap:12px;flex-direction:column}
  .table{font-size:12px}
  .composer{grid-template-columns:74px 1fr;grid-template-areas:"file text" "send send"}
  .upload-button{grid-area:file;width:74px}
  .composer textarea{grid-area:text}
  .composer .btn{grid-area:send}
}