:root{
  --bg:#0b0d14; --panel:#11141f; --panel2:#171b2a; --line:rgba(255,255,255,.08);
  --text:#e8eaf3; --muted:#8b91a8; --accent:#6d5efc; --accent2:#22d3ee; --danger:#ff5d73; --ok:#34d399; --warn:#fbbf24;
  --radius:14px; font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,'Noto Sans Arabic','Noto Naskh Arabic',sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
.hidden{display:none!important}
.muted{color:var(--muted)} .small{font-size:.82rem} .ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bg-glow{position:fixed;inset:0;pointer-events:none;background:
  radial-gradient(600px 400px at 15% 0%,rgba(109,94,252,.22),transparent 60%),
  radial-gradient(500px 400px at 100% 100%,rgba(34,211,238,.12),transparent 60%)}
.logo{width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 8px 30px rgba(109,94,252,.45);position:relative;margin-bottom:14px}
.logo::after{content:"";position:absolute;inset:13px;border-radius:50%;background:#fff;opacity:.95}
.logo.sm{width:26px;height:26px;border-radius:8px;margin:0;box-shadow:none}.logo.sm::after{inset:8px}
.logo.big{width:64px;height:64px;border-radius:18px;margin:0 auto 18px}.logo.big::after{inset:19px}

input,textarea,button{font:inherit;color:inherit}
input,textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:11px;padding:.75rem .9rem;outline:none;transition:border-color .15s,box-shadow .15s}
input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(109,94,252,.25)}
label{display:block;margin:14px 0 6px;font-size:.85rem;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1.1rem;border-radius:11px;border:1px solid var(--line);background:var(--panel2);cursor:pointer;transition:transform .12s,background .15s,box-shadow .15s}
.btn:hover{background:#1f2438}.btn:active{transform:scale(.98)}
.btn.primary{background:linear-gradient(135deg,var(--accent),#8a6cff);border:none;box-shadow:0 6px 20px rgba(109,94,252,.35)}
.btn.primary:hover{filter:brightness(1.1)}
.btn.danger{background:rgba(255,93,115,.12);border-color:rgba(255,93,115,.35);color:#ff98a6}
.btn.ghost{background:transparent}
.btn.block{width:100%} .btn:disabled{opacity:.55;cursor:not-allowed}
.icon-btn{background:transparent;border:none;cursor:pointer;color:var(--muted);padding:.4rem .6rem;border-radius:8px}
.icon-btn:hover{color:var(--text);background:rgba(255,255,255,.06)}
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.error{margin-top:12px;padding:.65rem .85rem;border-radius:10px;background:rgba(255,93,115,.12);border:1px solid rgba(255,93,115,.35);color:#ffb3bd;font-size:.9rem}

.center{min-height:100%;display:flex;align-items:center;justify-content:center;padding:20px;position:relative}
.card{background:rgba(17,20,31,.72);backdrop-filter:blur(18px);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.auth-card{width:100%;max-width:400px;animation:rise .5s ease both}
.auth-card h1{margin:0 0 4px;font-size:1.6rem}
.auth-card .btn.primary{width:100%;margin-top:18px}.auth-card .btn.ghost{width:100%;margin-top:8px}
.auth-card p.small{text-align:center;margin:16px 0 0}
.pw-wrap{position:relative}.pw-wrap .icon-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:.8rem}
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

.app{position:relative;display:flex;height:100%;height:100dvh}
.sidebar{width:290px;flex:none;background:rgba(10,12,20,.85);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:14px;gap:12px;z-index:30}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;margin-bottom:12px}
.conv-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:3px}
.conv{display:flex;align-items:center;gap:6px;padding:.6rem .7rem;border-radius:10px;cursor:pointer;color:#c9cde0;font-size:.92rem}
.conv:hover{background:rgba(255,255,255,.05)}.conv.active{background:rgba(109,94,252,.18);color:#fff}
.conv .t{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.conv .del{opacity:0;border:none;background:none;color:var(--muted);cursor:pointer}.conv:hover .del{opacity:1}.conv .del:hover{color:var(--danger)}
.side-bottom{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--line);padding-top:12px}
.scrim{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:20}

.chat{flex:1;display:flex;flex-direction:column;min-width:0;position:relative}
.topbar{display:flex;align-items:center;gap:12px;padding:12px 18px;border-bottom:1px solid var(--line);background:rgba(11,13,20,.6);backdrop-filter:blur(10px)}
.model-pill{display:flex;align-items:center;gap:8px;background:var(--panel2);border:1px solid var(--line);padding:.35rem .8rem;border-radius:999px;font-size:.85rem}
.dot{width:8px;height:8px;border-radius:50%;background:var(--warn);box-shadow:0 0 10px currentColor}
.dot.ready{background:var(--ok)}.dot.down{background:var(--danger)}
.messages{flex:1;overflow-y:auto;padding:24px 16px 8px;scroll-behavior:smooth}
.empty{max-width:560px;margin:12vh auto 0;text-align:center}.empty h2{margin:0 0 8px;font-size:1.8rem}
.msg{max-width:800px;margin:0 auto 18px;display:flex;gap:12px;animation:rise .25s ease both}
.avatar{flex:none;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-size:.75rem;font-weight:700}
.msg.user .avatar{background:#2a3050}.msg.assistant .avatar{background:linear-gradient(135deg,var(--accent),var(--accent2))}
.bubble{flex:1;min-width:0;line-height:1.65;overflow-wrap:anywhere}
.msg.user .bubble{background:var(--panel2);border:1px solid var(--line);padding:.7rem 1rem;border-radius:var(--radius);white-space:pre-wrap}
.bubble p{margin:.35em 0}.bubble h2,.bubble h3,.bubble h4,.bubble h5{margin:.9em 0 .3em}
.bubble code{background:rgba(255,255,255,.08);padding:.12em .4em;border-radius:6px;font-family:ui-monospace,'SF Mono',Menlo,monospace;font-size:.88em}
.bubble blockquote{margin:.5em 0;padding:.2em 1em;border-inline-start:3px solid var(--accent);color:#b9bed3}
.bubble a{color:var(--accent2)}
.codeblock{margin:.7em 0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#090b12}
.codehead{display:flex;justify-content:space-between;align-items:center;padding:.35rem .8rem;background:#12162a;font-size:.78rem;color:var(--muted)}
.copy-code,.copy-msg{background:transparent;border:1px solid var(--line);color:var(--muted);border-radius:7px;padding:.15rem .55rem;cursor:pointer;font-size:.75rem}
.copy-code:hover,.copy-msg:hover{color:#fff;border-color:var(--accent)}
.codeblock pre{margin:0;padding:.9rem;overflow-x:auto}.codeblock code{background:none;padding:0}
.msg-actions{margin-top:6px}
.cursor::after{content:"▍";animation:blink 1s steps(1) infinite;color:var(--accent2)}
@keyframes blink{50%{opacity:0}}
.notice{color:var(--muted);font-size:.85rem;font-style:italic}

.composer{display:flex;flex-direction:column;gap:8px;max-width:840px;width:100%;margin:0 auto;padding:10px 16px calc(16px + env(safe-area-inset-bottom));position:relative}
.composer-inner{display:flex;gap:10px;align-items:flex-end;width:100%}
.composer textarea{resize:none;max-height:200px;border-radius:14px;padding:.85rem 1rem;flex:1}
.attach-btn{width:42px;height:42px;border-radius:12px;background:var(--panel2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);cursor:pointer;transition:all .15s ease;flex-shrink:0}
.attach-btn:hover{background:rgba(109,94,252,.15);color:var(--text);border-color:rgba(109,94,252,.4)}

/* Attachments Tray */
.attachments-tray{display:flex;flex-wrap:wrap;gap:8px;padding:4px 2px;max-height:120px;overflow-y:auto}
.attachment-chip{display:inline-flex;align-items:center;gap:8px;background:var(--panel2);border:1px solid rgba(109,94,252,.35);padding:6px 10px;border-radius:10px;font-size:.82rem;max-width:240px;box-shadow:0 2px 8px rgba(0,0,0,.25);animation:chipIn .18s ease-out;cursor:pointer}
@keyframes chipIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}
.attachment-chip .chip-icon{font-size:.95rem}
.attachment-chip .chip-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.attachment-chip .chip-size{color:var(--muted);font-size:.75rem}
.attachment-chip .chip-remove{background:none;border:none;color:var(--muted);padding:0 2px;font-size:1rem;line-height:1;cursor:pointer;border-radius:4px}
.attachment-chip .chip-remove:hover{color:var(--danger)}

/* File Cards inside Chat Messages */
.msg-attachments{display:flex;flex-direction:column;gap:8px;margin-bottom:8px}
.file-card{display:flex;align-items:center;gap:12px;background:rgba(0,0,0,.3);border:1px solid var(--line);padding:9px 12px;border-radius:12px;max-width:380px;transition:border-color .15s}
.file-card:hover{border-color:rgba(109,94,252,.4)}
.file-card-icon{font-size:1.3rem;flex-shrink:0}
.file-card-info{flex:1;min-width:0}
.file-card-name{font-weight:500;font-size:.85rem;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-card-meta{color:var(--muted);font-size:.75rem;margin-top:2px}
.file-card-btn{background:rgba(255,255,255,.08);border:1px solid var(--line);border-radius:7px;padding:3px 9px;font-size:.75rem;color:var(--text);cursor:pointer;transition:background .12s}
.file-card-btn:hover{background:var(--accent);border-color:transparent}

/* Drag and Drop Overlay */
.drop-overlay{position:absolute;inset:0;background:rgba(11,13,20,.88);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:20;border-radius:16px;animation:fadeIn .15s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.drop-box{border:2px dashed var(--accent);border-radius:18px;padding:36px;text-align:center;background:rgba(109,94,252,.08);max-width:380px;box-shadow:0 0 30px rgba(109,94,252,.25)}
.drop-icon{font-size:2.5rem;margin-bottom:10px}
.drop-title{font-size:1.1rem;font-weight:600;margin-bottom:4px}

/* Toast Notifications */
.toast{position:absolute;bottom:78px;left:50%;transform:translateX(-50%);background:#1e2438;border:1px solid rgba(109,94,252,.4);color:var(--text);padding:8px 16px;border-radius:999px;font-size:.82rem;box-shadow:0 6px 20px rgba(0,0,0,.4);z-index:15;pointer-events:none;animation:toastIn .2s ease}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}

/* Preview Modal Dialog */
.preview-dialog{width:min(860px,96vw);max-height:85vh;display:flex;flex-direction:column}
.preview-title{display:flex;align-items:center;gap:10px;min-width:0}
.preview-title h3{margin:0;font-size:1rem;color:var(--text)}
.preview-actions{display:flex;align-items:center;gap:8px}
.preview-body{padding:0 22px 22px;flex:1;overflow:auto}
.preview-body pre{margin:0;padding:14px;background:#090b12;border:1px solid var(--line);border-radius:12px;font-family:'Fira Code',ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.85rem;line-height:1.5;overflow-x:auto;white-space:pre-wrap;word-break:break-word;max-height:60vh}

.error.floating{position:absolute;bottom:92px;left:50%;transform:translateX(-50%);max-width:90%;z-index:5}

.dialog{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:20px;padding:0;width:min(760px,94vw);max-height:90vh;overflow:auto}
.dialog::backdrop{background:rgba(0,0,0,.6);backdrop-filter:blur(4px)}
.dialog-head{display:flex;justify-content:space-between;align-items:center;padding:18px 22px 6px}.dialog-head h2{margin:0}
.tabs{display:flex;gap:6px;padding:8px 22px;border-bottom:1px solid var(--line)}
.tab{background:none;border:none;color:var(--muted);padding:.5rem .9rem;border-radius:9px;cursor:pointer}.tab.active{background:rgba(109,94,252,.2);color:#fff}
.tabpane{padding:18px 22px 24px;display:flex;flex-direction:column;gap:12px}
.tabpane h3{margin:14px 0 0}
.kv{display:flex;justify-content:space-between;padding:.55rem 0;border-bottom:1px dashed var(--line)}.kv span{color:var(--muted)}
.row{display:flex;gap:10px}
.keybox{background:rgba(52,211,153,.08);border:1px solid rgba(52,211,153,.35);padding:12px;border-radius:12px;display:flex;flex-direction:column;gap:8px}
.keybox code{word-break:break-all;background:#090b12;padding:.6rem;border-radius:8px;font-size:.85rem;user-select:all}
.table{width:100%;border-collapse:collapse;font-size:.85rem}.table th{text-align:left;color:var(--muted);font-weight:500}.table th,.table td{padding:.55rem .4rem;border-bottom:1px solid var(--line)}
.badge{padding:.1rem .5rem;border-radius:999px;font-size:.75rem}.badge.active{background:rgba(52,211,153,.15);color:var(--ok)}.badge.revoked{background:rgba(255,93,115,.15);color:#ff98a6}
#pw-form{display:flex;flex-direction:column;gap:10px}
.mobile-only{display:none}
.ok-msg{color:var(--ok)}.err-msg{color:#ff98a6}

@media (max-width:820px){
  .mobile-only{display:inline-block}
  .sidebar{position:fixed;inset:0 auto 0 0;transform:translateX(-102%);transition:transform .25s ease;width:min(300px,86vw)}
  .sidebar.open{transform:none}
  .messages{padding:16px 10px 4px}
  .row{flex-direction:column}
  .table{display:block;overflow-x:auto}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}