:root{
  --bg:#050b08;--bg2:#08110d;--panel:#0b1510;--panel2:#101b15;--panel3:#14231b;
  --text:#f6f7f2;--muted:#92a095;--line:rgba(255,255,255,.085);
  --green:#0f6b46;--green2:#16885b;--green3:#0a3f2b;
  --gold:#d0a13c;--gold2:#f0c86e;--gold3:#7e5d1a;
  --danger:#e46e72;--shadow:0 24px 70px rgba(0,0,0,.38);--radius:18px
}
*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}
button,input,textarea,select{font:inherit}button{cursor:pointer}a{text-decoration:none;color:inherit}::selection{background:rgba(208,161,60,.35)}

/* Auth */
.auth-body{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 15% 10%,rgba(15,107,70,.23),transparent 33%),radial-gradient(circle at 90% 0,rgba(208,161,60,.16),transparent 28%),linear-gradient(155deg,#040806,#09110d 58%,#050806)}
.auth-card{width:min(440px,94vw);position:relative;overflow:hidden;background:linear-gradient(180deg,rgba(15,27,20,.97),rgba(8,15,11,.98));border:1px solid rgba(208,161,60,.17);border-radius:26px;padding:38px;box-shadow:var(--shadow)}
.auth-card:before{content:"";position:absolute;inset:0 0 auto;height:3px;background:linear-gradient(90deg,var(--green2),var(--gold),var(--green2))}
.brand{font-weight:950;letter-spacing:.095em;font-size:30px}.brand span{color:var(--gold2)}.brand small{display:inline-block;margin-left:8px;color:var(--muted);font-size:10px;letter-spacing:.04em;font-weight:700;vertical-align:middle}
.auth-card h1{margin:32px 0 6px;font-size:30px}.muted{color:var(--muted)}.auth-card form{display:grid;gap:10px;margin-top:24px}.auth-card label{font-size:12px;color:#c9d2ca;font-weight:700;letter-spacing:.03em}
.auth-card input{background:#08100c;border:1px solid rgba(255,255,255,.11);border-radius:13px;color:#fff;padding:14px 15px;outline:none;transition:.2s}.auth-card input:focus{border-color:rgba(208,161,60,.62);box-shadow:0 0 0 3px rgba(208,161,60,.08)}
.auth-card button,.send-btn,.admin-primary{background:linear-gradient(135deg,var(--gold2),var(--gold));border:0;color:#171208;font-weight:900;border-radius:13px;padding:13px 17px;box-shadow:0 10px 25px rgba(208,161,60,.15);transition:.2s}.auth-card button:hover,.send-btn:hover,.admin-primary:hover{transform:translateY(-1px);filter:brightness(1.04)}
.auth-link{font-size:14px;color:var(--muted);margin-top:19px}.auth-link a,.link-btn{color:var(--gold2)}.error{background:#351617;border:1px solid #6b2c30;color:#ffc4c6;padding:11px 13px;border-radius:12px;margin-top:15px}

/* Chat */
.chat-body{display:flex;height:100dvh;min-height:100vh;overflow:hidden;background:radial-gradient(circle at 85% -5%,rgba(208,161,60,.08),transparent 28%),radial-gradient(circle at 30% 100%,rgba(15,107,70,.08),transparent 38%),var(--bg)}
.sidebar{width:300px;flex:0 0 300px;background:linear-gradient(180deg,#08110d,#070d0a);border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:50;box-shadow:14px 0 44px rgba(0,0,0,.14)}
.sidebar-top{padding:22px 18px 16px;border-bottom:1px solid var(--line);display:grid;gap:16px}.brand-row{display:flex;align-items:center;justify-content:space-between}.brand.small{font-size:21px}.mobile-close{display:none}
.secondary{border:1px solid rgba(208,161,60,.22);border-radius:13px;padding:11px 14px;color:#fff;background:linear-gradient(180deg,#132219,#0e1913);transition:.2s}.secondary:hover{border-color:rgba(208,161,60,.46);background:#16251c}.premium-action{font-weight:800;letter-spacing:.01em}
.side-section-title{padding:14px 18px 7px;color:#73877a;font-size:10px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.conversation-list{padding:4px 10px 12px;overflow:auto;min-height:100px;max-height:38vh}.conversation-row{display:flex;align-items:center;border-radius:11px;margin-bottom:3px;border:1px solid transparent}.conversation-row:hover{background:#101a14}.conversation-row.active{background:linear-gradient(90deg,rgba(15,107,70,.26),rgba(208,161,60,.07));border-color:rgba(208,161,60,.12)}.conversation{flex:1;min-width:0;color:#dce4dd;padding:10px 11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}.icon-btn{background:none;border:0;color:#738078;font-size:18px;padding:6px 9px;border-radius:8px}.icon-btn:hover{color:#fff;background:rgba(255,255,255,.06)}
.knowledge-panel{border-top:1px solid var(--line);padding-bottom:8px;min-height:0}.upload-btn{display:block;margin:3px 12px 8px;padding:10px 12px;text-align:center;border:1px dashed rgba(208,161,60,.28);border-radius:11px;color:#d8c08a;font-size:12px;font-weight:800;background:rgba(208,161,60,.04);cursor:pointer}.upload-btn:hover{background:rgba(208,161,60,.08)}.upload-status{padding:0 14px 5px;min-height:15px;font-size:10px;color:var(--muted)}.document-list{max-height:145px;overflow:auto;padding:0 10px}.document-item{display:flex;align-items:center;gap:6px;padding:8px;border-radius:9px;color:#b8c5bb;font-size:11px}.document-item:hover{background:#101a14}.document-item span{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar-bottom{margin-top:auto;border-top:1px solid var(--line);padding:14px}.account-card{display:flex;align-items:center;gap:10px;padding:8px;border-radius:12px;background:rgba(255,255,255,.025)}.avatar{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(145deg,var(--green2),var(--green3));border:1px solid rgba(208,161,60,.35);font-weight:900}.account-copy{min-width:0}.user-email{font-size:11px;color:#eef2ee;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.model{font-size:9px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.link-btn{background:none;border:0;padding:7px 8px 0;font-size:11px}.side-account-actions{display:flex;justify-content:space-between;align-items:center}.admin-link{font-weight:800}
.chat-main{flex:1;min-width:0;display:flex;flex-direction:column}.topbar{height:72px;flex:0 0 72px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 24px;background:rgba(5,11,8,.82);backdrop-filter:blur(16px);z-index:20}.topbar-left{display:flex;align-items:center;gap:13px;min-width:0}.topbar-left>div{display:grid;min-width:0}.topbar strong{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:45vw}.eyebrow{font-size:9px;color:var(--gold2);font-weight:900;letter-spacing:.12em;text-transform:uppercase;margin-bottom:2px}.mobile-menu{display:none;background:#101a14;color:#fff;border:1px solid var(--line);border-radius:11px;width:38px;height:38px}.topbar-tools{display:flex;align-items:center;gap:10px}.mode-wrap{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:11px}.mode-wrap select{appearance:none;background:#0f1b14;color:#ecf2ed;border:1px solid rgba(208,161,60,.2);border-radius:11px;padding:9px 30px 9px 11px;outline:none}.web-switch{display:flex;align-items:center;cursor:pointer}.web-switch input{display:none}.web-switch span{padding:8px 11px;border:1px solid rgba(255,255,255,.09);border-radius:11px;color:#829087;background:#0e1712;font-size:11px;font-weight:800}.web-switch input:checked+span{color:#102016;background:linear-gradient(135deg,#d9b04e,#f0c86e);border-color:transparent;box-shadow:0 6px 18px rgba(208,161,60,.16)}
.messages{flex:1;overflow:auto;padding:32px max(22px,calc((100% - 900px)/2)) 26px;scroll-behavior:smooth}.msg{display:flex;margin:16px 0}.msg.user{justify-content:flex-end}.msg.assistant{justify-content:flex-start}.bubble{max-width:min(80%,760px);white-space:pre-wrap;line-height:1.65;padding:15px 17px;border-radius:18px;background:linear-gradient(180deg,#111c16,#0e1812);border:1px solid var(--line);box-shadow:0 8px 24px rgba(0,0,0,.13);font-size:14px}.msg.assistant .bubble{border-top-left-radius:7px}.msg.user .bubble{background:linear-gradient(145deg,#1f2718,#2a2413);border-color:rgba(208,161,60,.26);border-top-right-radius:7px}.bubble.streaming:after{content:"";display:inline-block;width:7px;height:14px;margin-left:4px;vertical-align:-2px;background:var(--gold2);animation:blink .8s infinite}@keyframes blink{50%{opacity:.18}}
.empty-state{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--muted);padding:30px}.orb{width:78px;height:78px;border-radius:24px;display:grid;place-items:center;background:linear-gradient(145deg,var(--green2),#0b3e2a 62%,#07160f);border:1px solid rgba(208,161,60,.52);box-shadow:0 16px 50px rgba(10,88,57,.25),inset 0 0 0 1px rgba(255,255,255,.05);color:var(--gold2);font-size:31px;font-weight:950;margin-bottom:22px}.empty-kicker{font-size:10px;color:var(--gold2);font-weight:900;letter-spacing:.16em;text-transform:uppercase}.empty-state h2{color:#fff;font-size:29px;margin:7px 0 8px}.empty-state>p{max-width:540px;margin:0;line-height:1.6}.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;width:min(650px,100%);margin-top:26px}.quick{padding:13px 14px;border-radius:13px;border:1px solid var(--line);background:rgba(255,255,255,.025);color:#cbd6cd;text-align:left;font-size:12px;transition:.2s}.quick:hover{border-color:rgba(208,161,60,.28);background:rgba(15,107,70,.11);color:#fff;transform:translateY(-1px)}
.composer{padding:14px max(20px,calc((100% - 900px)/2)) 18px;background:linear-gradient(180deg,rgba(5,11,8,.18),#050b08 26%);position:relative}.composer-shell{border:1px solid rgba(208,161,60,.22);border-radius:19px;background:linear-gradient(180deg,#0f1913,#0a120e);box-shadow:0 16px 45px rgba(0,0,0,.3),0 0 0 1px rgba(15,107,70,.11);padding:10px 11px 9px;transition:.2s}.composer-shell:focus-within{border-color:rgba(208,161,60,.48);box-shadow:0 18px 50px rgba(0,0,0,.34),0 0 0 3px rgba(208,161,60,.045)}.composer textarea{display:block;width:100%;resize:none;min-height:42px;max-height:150px;border:0;outline:0;background:transparent;color:#fff;padding:8px 8px 4px;line-height:1.5}.composer textarea::placeholder{color:#657168}.composer-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:5px 3px 1px}.composer-left-actions{display:flex;align-items:center;gap:10px;min-width:0}.composer-meta{display:flex;align-items:center;gap:7px;font-size:10px;color:#728079}.status-dot{width:7px;height:7px;border-radius:50%;background:#29a06c;box-shadow:0 0 0 4px rgba(41,160,108,.09)}.send-btn{padding:10px 15px;border-radius:12px;min-width:96px}.send-btn span{margin-left:5px}.send-btn:disabled{opacity:.42;cursor:not-allowed;transform:none}.safe-area{height:env(safe-area-inset-bottom)}.mobile-scrim{display:none}.attach-btn{display:flex;align-items:center;gap:5px;padding:8px 10px;border:1px solid rgba(208,161,60,.18);border-radius:10px;color:#d7c18c;background:rgba(208,161,60,.04);font-size:11px;font-weight:800;cursor:pointer}.attach-btn:hover{background:rgba(208,161,60,.09)}.attach-btn.disabled{opacity:.4;pointer-events:none}.attachment-tray{display:flex;flex-wrap:wrap;gap:7px;padding:0 4px}.attachment-tray:empty{display:none}.attachment-chip{display:flex;align-items:center;gap:7px;max-width:240px;padding:7px 9px;border:1px solid rgba(208,161,60,.18);border-radius:10px;background:#111b15;color:#d9e0da;font-size:10px}.attachment-chip.image{border-color:rgba(41,160,108,.35)}.attachment-chip.loading{color:#9aa69d}.attachment-icon{color:var(--gold2);font-weight:900}.attachment-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.attachment-chip button{border:0;background:transparent;color:#88958d;font-size:16px;padding:0}.attachment-chip button:hover{color:#fff}

/* Admin */
.admin-body{min-height:100vh;background:radial-gradient(circle at 80% 0,rgba(208,161,60,.08),transparent 26%),radial-gradient(circle at 15% 100%,rgba(15,107,70,.12),transparent 30%),#050b08;color:var(--text)}.admin-sidebar{position:fixed;inset:0 auto 0 0;width:260px;padding:24px 18px;background:linear-gradient(180deg,#08110d,#060c09);border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:20}.admin-badge{display:inline-flex;width:max-content;margin-top:14px;padding:5px 8px;border-radius:999px;border:1px solid rgba(208,161,60,.28);color:var(--gold2);font-size:9px;font-weight:900;letter-spacing:.12em}.admin-nav{display:grid;gap:5px;margin-top:28px}.admin-nav a{padding:10px 11px;border-radius:10px;color:#aeb9b0;font-size:12px}.admin-nav a:hover{background:#101a14;color:#fff}.admin-side-bottom{margin-top:auto;font-size:10px;color:var(--muted);display:grid;gap:8px}.admin-back{color:var(--gold2);font-weight:800}.admin-main{margin-left:260px;padding:26px 30px 60px;max-width:1500px}.admin-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.admin-topbar h1{margin:3px 0 0;font-size:29px}.admin-health{display:flex;align-items:center;gap:9px;padding:9px 12px;border:1px solid var(--line);background:#0c1510;border-radius:12px;color:#b7c2ba;font-size:11px}.admin-section{background:linear-gradient(180deg,rgba(14,25,18,.94),rgba(9,16,12,.95));border:1px solid rgba(208,161,60,.11);border-radius:20px;padding:22px;margin-bottom:18px;box-shadow:0 16px 50px rgba(0,0,0,.18)}.section-title-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.section-title-row h2{margin:2px 0 0;font-size:20px}.stats-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.stat-card,.admin-meta-card{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025);padding:15px}.stat-card span,.admin-meta-card span{display:block;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.08em}.stat-card strong{display:block;margin-top:7px;font-size:25px}.admin-meta-card strong{display:block;margin-top:7px;font-size:12px;word-break:break-word}.admin-meta-grid{display:grid;grid-template-columns:2fr 2fr 1fr;gap:10px;margin-top:10px}.storage-card{margin-top:14px;padding:16px;border-radius:16px;border:1px solid rgba(208,161,60,.17);background:linear-gradient(135deg,rgba(15,107,70,.10),rgba(208,161,60,.04))}.storage-head{display:flex;justify-content:space-between;align-items:end;gap:12px;font-size:11px;color:var(--muted)}.storage-head strong{display:block;color:#fff;font-size:14px;margin-top:3px}.storage-track{height:10px;margin:12px 0 8px;border-radius:999px;background:#08100c;border:1px solid var(--line);overflow:hidden}.storage-fill{height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--green2),var(--gold));box-shadow:0 0 18px rgba(208,161,60,.15)}.storage-card small{color:#7f8c82;font-size:10px}.admin-form-grid{display:grid;gap:12px}.admin-form-grid.two{grid-template-columns:1fr 1fr}.admin-field{display:grid;gap:6px}.admin-field span{font-size:10px;color:#aeb9b0;font-weight:800;letter-spacing:.04em}.admin-field input,.admin-field textarea,.create-user-card input{width:100%;background:#08110d;border:1px solid rgba(255,255,255,.10);border-radius:11px;color:#fff;padding:11px 12px;outline:none}.admin-field textarea{resize:vertical;line-height:1.55}.admin-field input:focus,.admin-field textarea:focus,.create-user-card input:focus{border-color:rgba(208,161,60,.45);box-shadow:0 0 0 3px rgba(208,161,60,.05)}.admin-field.full{margin-top:12px}.admin-toggle{display:flex;align-items:center;gap:8px;color:#d4dbd5;font-size:12px}.admin-toggle input{accent-color:var(--gold)}.admin-mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.admin-save-bottom{display:flex;justify-content:flex-end;margin-top:14px}.admin-help{color:var(--muted);font-size:11px;line-height:1.6}.admin-alert{margin:0 0 14px;padding:11px 13px;border-radius:12px;font-size:12px}.admin-alert.success{background:#0f2a1d;border:1px solid #1f6042;color:#b9f0d0}.admin-alert.danger{background:#351617;border:1px solid #6b2c30;color:#ffc4c6}.create-user-card{display:grid;grid-template-columns:1.2fr 1fr 1fr auto;gap:10px;align-items:end;margin-bottom:14px;padding:14px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.02)}.create-user-card strong{display:block;font-size:13px}.create-user-card small{display:block;color:var(--muted);font-size:9px;margin-top:4px}.admin-table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px}.admin-table{width:100%;border-collapse:collapse;min-width:780px}.admin-table th,.admin-table td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:11px}.admin-table th{color:#87948b;font-size:9px;text-transform:uppercase;letter-spacing:.08em;background:#09110d}.role-pill{display:inline-block;padding:4px 7px;border-radius:999px;background:#112019;color:#9ab4a2;font-size:9px;font-weight:800}.role-pill.gold{background:rgba(208,161,60,.12);color:var(--gold2);border:1px solid rgba(208,161,60,.2)}.inline-reset{display:flex;gap:6px}.inline-reset input{background:#08110d;border:1px solid var(--line);border-radius:8px;color:#fff;padding:7px 8px;min-width:130px}.inline-reset button,.danger-btn{border:1px solid var(--line);border-radius:8px;background:#101a14;color:#d7ded8;padding:7px 9px;font-size:10px}.danger-btn{color:#ffb9bd;border-color:#5f292d;background:#251113}.password-card{display:grid;grid-template-columns:1fr 1fr auto;gap:10px;align-items:end}

::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#1d2a22;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#2c3d31}

@media(max-width:980px){.stats-grid{grid-template-columns:repeat(3,1fr)}.admin-mode-grid{grid-template-columns:1fr}.create-user-card{grid-template-columns:1fr 1fr}.create-user-card>div{grid-column:1/-1}.password-card{grid-template-columns:1fr 1fr}.password-card button{grid-column:1/-1}.admin-meta-grid{grid-template-columns:1fr}}
@media(max-width:860px){
  .chat-body{height:100dvh}.sidebar{position:fixed;inset:0 auto 0 0;width:min(86vw,330px);transform:translateX(-105%);transition:transform .24s ease;box-shadow:25px 0 70px rgba(0,0,0,.55)}.sidebar.open{transform:translateX(0)}.mobile-scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.58);backdrop-filter:blur(3px);opacity:0;pointer-events:none;transition:.2s;z-index:40}.mobile-scrim.show{opacity:1;pointer-events:auto}.menu-open{overflow:hidden}.mobile-menu,.mobile-close{display:grid;place-items:center}.mobile-close{background:#101a14;color:#fff;border:1px solid var(--line);border-radius:10px;width:34px;height:34px;font-size:22px}.conversation-list{max-height:34vh}.knowledge-panel{flex:1;overflow:hidden}.document-list{max-height:18vh}.topbar{height:64px;flex-basis:64px;padding:0 12px}.topbar strong{max-width:30vw;font-size:13px}.mode-wrap>span{display:none}.mode-wrap select{max-width:120px;padding:8px 9px;font-size:10px}.web-switch span{padding:8px 9px;font-size:10px}.messages{padding:18px 12px 20px}.bubble{max-width:90%;font-size:14px;padding:13px 14px}.composer{padding:10px 10px max(10px,env(safe-area-inset-bottom))}.composer-shell{border-radius:17px;padding:8px}.composer textarea{font-size:16px;min-height:40px;padding:7px 6px 3px}.composer-meta{font-size:9px}.send-btn{min-width:86px;padding:9px 12px}.empty-state{padding:25px 14px}.empty-state h2{font-size:25px}.quick-grid{grid-template-columns:1fr;max-width:360px;margin-top:20px}.quick{text-align:center}.orb{width:68px;height:68px;border-radius:21px;font-size:27px;margin-bottom:18px}.sidebar-bottom{padding-bottom:max(14px,env(safe-area-inset-bottom))}.attach-btn span{display:none}
  .admin-sidebar{position:relative;width:auto;inset:auto;min-height:auto;padding:18px}.admin-nav{display:flex;overflow:auto;margin-top:14px}.admin-nav a{white-space:nowrap}.admin-side-bottom{margin-top:14px}.admin-main{margin-left:0;padding:18px 12px 40px}.admin-topbar h1{font-size:23px}.stats-grid{grid-template-columns:repeat(2,1fr)}.admin-form-grid.two{grid-template-columns:1fr}.create-user-card{grid-template-columns:1fr}.password-card{grid-template-columns:1fr}.section-title-row{align-items:flex-start}.admin-section{padding:16px;border-radius:16px}
}
@media(max-width:480px){.topbar{gap:6px}.topbar strong{max-width:24vw}.eyebrow{display:none}.topbar-tools{gap:5px}.mode-wrap select{max-width:104px;font-size:9px}.web-switch span{font-size:0;width:34px;height:34px;padding:0;display:grid;place-items:center}.web-switch span:after{content:'Web';font-size:8px}.messages{padding-top:13px}.msg{margin:11px 0}.bubble{max-width:94%;line-height:1.58;font-size:13.5px}.composer-actions{gap:6px}.composer-left-actions{gap:5px}.composer-meta{max-width:86px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.send-btn{min-width:78px;font-size:12px}.empty-state>p{font-size:13px}.brand.small{font-size:20px}.attachment-chip{max-width:180px}.admin-topbar{align-items:flex-start}.admin-health{display:none}.stats-grid{grid-template-columns:1fr 1fr}.storage-head{align-items:flex-start;flex-direction:column}.admin-table{min-width:700px}}