*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
--navy:#0a1628;--navy-light:#132140;--gold:#c8922a;--gold-light:#e8b84b;--gold-pale:#fdf4e3;
--bg:#f8f5ef;--surface:#ffffff;--surface2:#f1ede6;--surface3:#e2dcd2;
--text-primary:#2c2620;--text-secondary:#6b6259;--text-muted:#9e9488;
--border:#e2dcd2;--border2:#cdc7be;
--red:#c0392b;--green:#1a7a4a;
--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;
--shadow-sm:0 1px 3px rgba(10,22,40,.10);--shadow-md:0 4px 16px rgba(10,22,40,.14);--shadow-lg:0 8px 32px rgba(10,22,40,.20);
--transition:.22s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"]{
--bg:#111318;--surface:#1c2030;--surface2:#242838;--surface3:#2e3348;
--text-primary:#e8e4dc;--text-secondary:#a09890;--text-muted:#6b6870;
--border:#2e3348;--border2:#3a4060;
--gold-pale:#2a2210;
--shadow-sm:0 1px 3px rgba(0,0,0,.3);--shadow-md:0 4px 16px rgba(0,0,0,.4);--shadow-lg:0 8px 32px rgba(0,0,0,.5);
}

html,body{height:100%;font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--text-primary);transition:background var(--transition),color var(--transition)}
body{display:flex;flex-direction:column;min-height:100vh}

.page-header{background:var(--navy);padding:0 2rem;display:flex;align-items:center;justify-content:space-between;height:68px;position:sticky;top:0;z-index:100;flex-shrink:0}
.logo-wrap{display:flex;align-items:center;gap:14px;text-decoration:none}
.logo-img{height:36px;width:auto;object-fit:contain;display:block}
.logo-divider{width:1px;height:28px;background:rgba(255,255,255,.28);flex-shrink:0}
.logo-assistant{font-family:'Playfair Display',serif;font-weight:600;color:var(--gold-light);font-size:15px;white-space:nowrap}
.nav-actions{display:flex;align-items:center;gap:8px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:10px 20px;border-radius:var(--radius-sm);font-family:'DM Sans',sans-serif;font-size:14px;font-weight:500;cursor:pointer;border:none;transition:var(--transition);text-decoration:none;white-space:nowrap;line-height:1}
.btn-primary{background:var(--gold);color:var(--navy);font-weight:600}
.btn-primary:hover{background:var(--gold-light)}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35)}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6)}
.btn-ghost{background:transparent;color:var(--text-secondary);border:1.5px solid var(--border)}
.btn-ghost:hover{background:var(--surface2);border-color:var(--border2)}
.btn-danger{background:#fde8e6;color:var(--red);border:1.5px solid #f5c6c2}
.btn-danger:hover{background:#fad2ce}
[data-theme="dark"] .btn-danger{background:rgba(192,57,43,.15);border-color:rgba(192,57,43,.35);color:#e57373}
[data-theme="dark"] .btn-danger:hover{background:rgba(192,57,43,.25)}
.btn-sm{padding:7px 14px;font-size:13px}
.btn-full{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

.theme-btn{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.1);border:1.5px solid rgba(255,255,255,.25);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);flex-shrink:0}
.theme-btn:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.5)}

.auth-wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:2rem}
.auth-card{background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:100%;max-width:440px;overflow:hidden;border:1px solid var(--border)}
.auth-header{background:var(--navy);padding:2.5rem 2rem;text-align:center}
.auth-emblem{width:64px;height:64px;background:var(--gold);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Playfair Display',serif;font-weight:700;color:var(--navy);font-size:24px;margin:0 auto 1rem}
.auth-title{font-family:'Playfair Display',serif;font-weight:700;color:#fff;font-size:22px;margin-bottom:4px}
.auth-sub{font-size:13px;color:var(--gold-light)}
.auth-body{padding:2rem}
.form-group{margin-bottom:1.2rem}
.form-label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px;letter-spacing:.02em}
.form-input{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-family:'DM Sans',sans-serif;font-size:14px;color:var(--text-primary);background:var(--surface);transition:var(--transition);outline:none}
.form-input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,146,42,.12)}
.form-input::placeholder{color:var(--text-muted)}
.form-hint{font-size:12px;color:var(--text-muted);margin-top:5px}
.auth-footer-link{text-align:center;font-size:13px;color:var(--text-secondary);margin-top:1.2rem}
.auth-footer-link a{color:var(--gold);font-weight:500;text-decoration:none}
.auth-footer-link a:hover{color:var(--gold-light);text-decoration:underline}

.alert{padding:11px 14px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:1rem}
.alert-error{background:#fde8e6;color:var(--red);border:1px solid #f5c6c2}
.alert-success{background:#e6f4ed;color:var(--green);border:1px solid #b6dfc9}
[data-theme="dark"] .alert-error{background:rgba(192,57,43,.15);border-color:rgba(192,57,43,.3);color:#e57373}
[data-theme="dark"] .alert-success{background:rgba(26,122,74,.15);border-color:rgba(26,122,74,.3);color:#4caf82}

.chat-wrap{display:flex;flex:1;overflow:hidden}
.sidebar{width:276px;background:var(--navy);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}
.sidebar-head{padding:1.2rem 1.4rem;border-bottom:1px solid rgba(255,255,255,.08)}
.user-chip{display:flex;align-items:center;gap:10px}
.user-avatar{width:38px;height:38px;background:var(--gold);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;color:var(--navy);flex-shrink:0}
.user-name{font-size:14px;font-weight:500;color:#fff;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-role{font-size:11px;color:var(--gold-light);text-transform:uppercase;letter-spacing:.05em}
.sidebar-nav{flex:1;padding:1rem .8rem;overflow-y:auto;display:flex;flex-direction:column;gap:3px}
.nav-label{font-size:10px;font-weight:600;color:rgba(255,255,255,.3);letter-spacing:.1em;text-transform:uppercase;padding:8px 10px 4px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);color:rgba(255,255,255,.65);font-size:13.5px;text-decoration:none}
.nav-item svg{flex-shrink:0;opacity:.7}
.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{background:rgba(200,146,42,.2);color:var(--gold-light)}
.nav-item:hover svg,.nav-item.active svg{opacity:1}
.sidebar-foot{padding:1rem;border-top:1px solid rgba(255,255,255,.08)}

.chat-area{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg);transition:background var(--transition)}
.chat-topbar{background:var(--surface);border-bottom:1px solid var(--border);padding:0 1.5rem;height:58px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;transition:background var(--transition),border-color var(--transition)}
.topbar-title{font-family:'Playfair Display',serif;font-weight:600;color:var(--navy);font-size:17px}
[data-theme="dark"] .topbar-title{color:var(--text-primary)}
.topbar-sub{font-size:12px;color:var(--text-muted);margin-top:1px}
.online-dot{width:8px;height:8px;background:#22c55e;border-radius:50%;display:inline-block;margin-right:5px}

.messages{flex:1;overflow-y:auto;padding:1.5rem;display:flex;flex-direction:column;gap:1rem}
.messages::-webkit-scrollbar{width:4px}
.messages::-webkit-scrollbar-thumb{background:var(--border2);border-radius:4px}

.welcome{background:var(--surface);border-radius:var(--radius-lg);padding:1.8rem;border:1px solid var(--border);text-align:center;transition:background var(--transition),border-color var(--transition)}
.welcome-icon{width:56px;height:56px;background:var(--navy);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem}
.welcome-icon img{width:38px;height:38px;object-fit:contain}
.welcome-title{font-family:'Playfair Display',serif;font-weight:700;color:var(--text-primary);font-size:19px;margin-bottom:8px}
.welcome-text{font-size:13.5px;color:var(--text-secondary);line-height:1.6;max-width:460px;margin:0 auto 1.2rem}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.chip{display:inline-flex;align-items:center;padding:7px 14px;background:var(--gold-pale);border:1px solid #e8d5a8;border-radius:20px;font-size:12.5px;color:var(--navy);cursor:pointer;transition:var(--transition)}
[data-theme="dark"] .chip{border-color:#4a3a18;color:var(--gold-light)}
.chip:hover{background:var(--gold);color:#fff;border-color:var(--gold)}

.msg{display:flex;gap:10px;max-width:82%}
.msg.user{align-self:flex-end;flex-direction:row-reverse}
.msg.bot{align-self:flex-start}
.msg-av{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;margin-top:2px;background:var(--gold);color:var(--navy)}
.msg-av-bot{background:var(--navy);padding:4px}
.av-logo{width:24px;height:24px;object-fit:contain;display:block}
.bubble{padding:11px 15px;border-radius:var(--radius-lg);font-size:14px;line-height:1.65}
.msg.bot .bubble{background:var(--surface);color:var(--text-primary);border:1px solid var(--border);border-bottom-left-radius:4px;transition:background var(--transition),border-color var(--transition)}
.msg.user .bubble{background:var(--navy);color:#fff;border-bottom-right-radius:4px}
.msg-time{font-size:11px;color:var(--text-muted);margin-top:4px}
.msg.user .msg-time{text-align:left}
.msg.bot .msg-time{text-align:right}

.bubble p{margin:0 0 .55em}
.bubble p:last-child{margin-bottom:0}
.bubble strong{font-weight:600}
.bubble em{font-style:italic}
.bubble ul,.bubble ol{padding-left:1.4em;margin:.35em 0 .55em}
.bubble ul{list-style:disc}
.bubble ol{list-style:decimal}
.bubble li{margin-bottom:3px;line-height:1.55}
.bubble h1,.bubble h2,.bubble h3{font-family:'Playfair Display',serif;font-weight:600;margin:.65em 0 .3em;line-height:1.3}
.bubble h1{font-size:16px}.bubble h2{font-size:15px}.bubble h3{font-size:14px}
.bubble code{font-family:monospace;background:rgba(0,0,0,.07);padding:1px 5px;border-radius:3px;font-size:13px}
.msg.user .bubble code{background:rgba(255,255,255,.15)}
[data-theme="dark"] .bubble code{background:rgba(255,255,255,.1)}
.bubble hr{border:none;border-top:1px solid var(--border);margin:.7em 0}
.bubble a{color:var(--gold);text-decoration:underline;word-break:break-all}
.msg.user .bubble a{color:rgba(255,255,255,.85)}

.typing{display:flex;align-items:center;gap:4px;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);border-bottom-left-radius:4px;width:fit-content;transition:background var(--transition)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--text-muted);animation:bounce 1.2s infinite}
.dot:nth-child(2){animation-delay:.2s}.dot:nth-child(3){animation-delay:.4s}
@keyframes bounce{0%,60%,100%{transform:translateY(0)}30%{transform:translateY(-6px)}}

.input-area{background:var(--surface);border-top:1px solid var(--border);padding:1rem 1.5rem;transition:background var(--transition),border-color var(--transition)}
.input-row{display:flex;gap:10px;align-items:flex-end}
.chat-ta{flex:1;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius-md);font-family:'DM Sans',sans-serif;font-size:14px;color:var(--text-primary);background:var(--surface2);resize:none;max-height:120px;min-height:46px;line-height:1.5;outline:none;transition:var(--transition)}
.chat-ta:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,146,42,.1)}
.chat-ta::placeholder{color:var(--text-muted)}
.send-btn{width:46px;height:46px;background:var(--navy);color:#fff;border:none;border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:var(--transition)}
.send-btn:hover{background:var(--navy-light)}
.send-btn:disabled{opacity:.4;cursor:not-allowed}
.input-note{font-size:11.5px;color:var(--text-muted);margin-top:8px;text-align:center}

.admin-content{flex:1;overflow-y:auto;padding:2rem;background:var(--bg);transition:background var(--transition)}
.admin-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem}
.admin-bar h1{font-family:'Playfair Display',serif;font-weight:700;color:var(--text-primary);font-size:24px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:2rem}
.stat{background:var(--surface);border-radius:var(--radius-lg);padding:1.4rem;border:1px solid var(--border);transition:background var(--transition),border-color var(--transition)}
.stat-val{font-size:28px;font-weight:700;color:var(--text-primary);font-family:'Playfair Display',serif}
.stat-lbl{font-size:12px;color:var(--text-muted);margin-top:4px;text-transform:uppercase;letter-spacing:.05em}
.stat-badge{display:inline-flex;font-size:11px;font-weight:500;margin-top:6px;padding:2px 8px;border-radius:12px}
.badge-up{background:#e6f4ed;color:var(--green)}
.badge-n{background:var(--surface2);color:var(--text-muted)}
[data-theme="dark"] .badge-up{background:rgba(26,122,74,.2);color:#4caf82}
.card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);margin-bottom:1.5rem;overflow:hidden;transition:background var(--transition),border-color var(--transition)}
.card-head{padding:1rem 1.4rem;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.card-title{font-weight:600;color:var(--text-primary);font-size:15px}
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{padding:10px 16px;text-align:left;font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;background:var(--surface2);border-bottom:1px solid var(--border)}
td{padding:12px 16px;color:var(--text-primary);border-bottom:1px solid var(--surface2)}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--gold-pale)}
[data-theme="dark"] tr:hover td{background:rgba(200,146,42,.08)}
.badge{display:inline-flex;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:500}
.badge-admin{background:#e8eeff;color:#3355cc}
.badge-user{background:var(--surface2);color:var(--text-secondary)}
.badge-active{background:#e6f4ed;color:var(--green)}
.badge-inactive{background:#fde8e6;color:var(--red)}
[data-theme="dark"] .badge-admin{background:rgba(51,85,204,.2);color:#7b9ff5}
[data-theme="dark"] .badge-active{background:rgba(26,122,74,.2);color:#4caf82}
[data-theme="dark"] .badge-inactive{background:rgba(192,57,43,.15);color:#e57373}
.act-row{display:flex;gap:6px}
form.inline{display:inline}

.modal-overlay{position:fixed;inset:0;background:rgba(10,22,40,.65);display:none;align-items:center;justify-content:center;z-index:1000;padding:1rem}
.modal-overlay.open{display:flex}
.modal{background:var(--surface);border-radius:var(--radius-xl);padding:2rem;width:100%;max-width:420px;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.modal-title{font-family:'Playfair Display',serif;font-weight:700;color:var(--text-primary);font-size:19px;margin-bottom:1.2rem}
.modal-foot{display:flex;gap:10px;margin-top:1.5rem;justify-content:flex-end}

.mobile-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px;color:#fff}
@media(max-width:768px){
.sidebar{display:none;position:fixed;inset:0;z-index:200;width:100%}
.sidebar.open{display:flex}
.mobile-toggle{display:flex}
.admin-content{padding:1rem}
.stats{grid-template-columns:1fr 1fr}
.msg{max-width:94%}
}
@media(max-width:480px){
.stats{grid-template-columns:1fr}
.page-header{padding:0 1rem}
.logo-img{height:28px}
.logo-assistant{font-size:13px}
}
.fade-in{animation:fadeIn .35s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

.auth-logo-wrap{display:flex;align-items:center;justify-content:center;gap:14px;padding:2.2rem 2rem}
.auth-logo-img{height:40px;width:auto;object-fit:contain;display:block}
.auth-logo-divider{width:1px;height:32px;background:rgba(255,255,255,.3);flex-shrink:0}
.auth-logo-label{font-family:'Playfair Display',serif;font-weight:700;color:var(--gold-light);font-size:17px;white-space:nowrap;letter-spacing:.01em}

.auth-header{background:var(--navy);padding:2.2rem 2rem;text-align:center}
.auth-brand{display:flex;flex-direction:column;align-items:center;gap:10px}
.auth-brand-logo{height:38px;width:auto;object-fit:contain;display:block}
.auth-brand-label{font-family:'Playfair Display',serif;font-weight:600;color:var(--gold-light);font-size:15px;letter-spacing:.03em}

.btn-outline-navy{background:transparent;color:var(--navy);border:1.5px solid var(--navy);font-weight:500}
.btn-outline-navy:hover{background:var(--navy);color:#fff}
[data-theme="dark"] .btn-outline-navy{color:var(--text-primary);border-color:var(--border2)}
[data-theme="dark"] .btn-outline-navy:hover{background:var(--surface3)}