*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}#root{height:100vh;display:flex;flex-direction:column}:root{--bg-sidebar: #202123;--bg-main: #343541;--bg-msg-ai: #444654;--bg-input: #40414f;--border: #4a4b57;--accent: #10a37f;--accent-hover: #0d8f6f;--text: #ececf1;--text-muted: #8e8ea0;--text-dark: #202123;--radius: 10px;--font: "Inter", system-ui, -apple-system, sans-serif}body{font-family:var(--font);background:var(--bg-main);color:var(--text);margin:0;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-main)}.auth-card{background:var(--bg-sidebar);border:1px solid var(--border);border-radius:16px;padding:40px 48px;width:100%;max-width:400px;display:flex;flex-direction:column;gap:20px}.auth-logo{text-align:center;margin-bottom:4px}.auth-logo h1{font-size:22px;font-weight:700;color:var(--text);letter-spacing:-.3px}.auth-logo p{font-size:13px;color:var(--text-muted);margin-top:4px}.auth-tabs{display:flex;gap:4px;background:var(--bg-input);border-radius:8px;padding:3px}.auth-tab{flex:1;background:none;border:none;color:var(--text-muted);font-size:13px;font-weight:500;padding:7px;border-radius:6px;cursor:pointer;transition:all .15s}.auth-tab.active{background:var(--bg-sidebar);color:var(--text)}.auth-field{display:flex;flex-direction:column;gap:6px}.auth-field label{font-size:12px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.auth-field input{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;padding:10px 14px;outline:none;transition:border-color .15s}.auth-field input:focus{border-color:var(--accent)}.auth-field input::placeholder{color:var(--text-muted)}.auth-error{background:#ef44441f;border:1px solid rgba(239,68,68,.3);border-radius:8px;color:#f87171;font-size:13px;padding:10px 14px}.btn-primary{background:var(--accent);border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:14px;font-weight:600;padding:11px;transition:background .15s}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.app-shell{display:flex;height:100vh;overflow:hidden}.sidebar{width:260px;min-width:260px;background:var(--bg-sidebar);display:flex;flex-direction:column;border-right:1px solid var(--border)}.sidebar-header{padding:16px;border-bottom:1px solid var(--border)}.btn-new-chat{display:flex;align-items:center;gap:10px;width:100%;background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--text);cursor:pointer;font-size:13px;font-weight:500;padding:9px 13px;transition:background .15s}.btn-new-chat:hover{background:#ffffff0d}.btn-icon{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;flex-shrink:0}.sidebar-sessions{flex:1;overflow-y:auto;padding:8px}.sidebar-section-label{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.6px;padding:8px 8px 4px}.session-item{display:flex;align-items:center;gap:8px;border-radius:8px;color:var(--text-muted);cursor:pointer;font-size:13px;padding:8px 10px;transition:background .15s,color .15s;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.session-item:hover{background:#ffffff0d;color:var(--text)}.session-item.active{background:#ffffff14;color:var(--text)}.session-item svg{flex-shrink:0;width:14px;height:14px;opacity:.5}.session-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.btn-delete-session{display:none;align-items:center;justify-content:center;background:none;border:none;color:var(--text-muted);cursor:pointer;padding:2px 4px;border-radius:4px;flex-shrink:0;transition:color .15s,background .15s}.btn-delete-session:hover{color:#f87171;background:#ef44441a}.session-item:hover .btn-delete-session{display:flex}.no-sessions{font-size:12px;color:var(--text-muted);text-align:center;padding:24px 16px}.sidebar-footer{border-top:1px solid var(--border);padding:12px}.user-panel{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:default}.user-avatar{width:30px;height:30px;background:var(--accent);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;flex-shrink:0}.user-email{font-size:12px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.btn-logout{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:6px;transition:color .15s,background .15s;display:flex;align-items:center}.btn-logout:hover{color:#f87171;background:#ef444414}.chat-window{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-main)}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--text-muted)}.chat-empty h2{font-size:20px;font-weight:600;color:var(--text)}.chat-empty p{font-size:14px}.empty-icon{opacity:.3}.msg-link{color:#60a5fa;text-decoration:underline;text-underline-offset:2px;word-break:break-all}.msg-link:hover{color:#93c5fd}.chat-messages{flex:1;overflow-y:auto;padding:24px 0;scroll-behavior:smooth}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.message-row{display:flex;padding:8px 20%;gap:14px;align-items:flex-start}.message-row.user{flex-direction:row-reverse}.message-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;margin-top:2px}.message-row.user .message-avatar{background:var(--accent);color:#fff}.message-row.assistant .message-avatar{background:#5436da;color:#fff}.message-bubble{max-width:100%;font-size:14px;line-height:1.65;color:var(--text);white-space:pre-wrap;word-break:break-word}.message-row.user .message-bubble{background:#2a6b9b;border-radius:18px 18px 4px;padding:10px 16px;color:#fff}.message-row.assistant .message-bubble{background:var(--bg-msg-ai);border-radius:18px 18px 18px 4px;padding:10px 16px}.cursor{display:inline-block;width:2px;height:1em;background:var(--text);margin-left:2px;vertical-align:text-bottom;animation:blink .9s step-start infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.input-area{padding:16px 20%;border-top:1px solid var(--border);background:var(--bg-main)}.input-bar{display:flex;align-items:flex-end;gap:10px;background:var(--bg-input);border:1px solid var(--border);border-radius:14px;padding:10px 14px;transition:border-color .15s}.input-bar:focus-within{border-color:var(--accent)}.input-bar textarea{flex:1;background:none;border:none;color:var(--text);font-family:var(--font);font-size:14px;line-height:1.5;outline:none;resize:none;max-height:160px;overflow-y:auto}.input-bar textarea::placeholder{color:var(--text-muted)}.btn-send{background:var(--accent);border:none;border-radius:8px;color:#fff;cursor:pointer;padding:7px 8px;display:flex;align-items:center;justify-content:center;transition:background .15s,opacity .15s;flex-shrink:0}.btn-send:hover{background:var(--accent-hover)}.btn-send:disabled{opacity:.4;cursor:not-allowed}.input-hint{font-size:11px;color:var(--text-muted);text-align:center;margin-top:8px}.chat-topbar{display:none;align-items:center;padding:10px 14px;border-bottom:1px solid var(--border);background:var(--bg-main);flex-shrink:0}.btn-hamburger{background:none;border:none;color:var(--text);cursor:pointer;padding:4px 6px;border-radius:6px;display:flex;align-items:center;transition:background .15s}.btn-hamburger:hover{background:#ffffff12}.sidebar-mobile-header{display:none;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border);flex-shrink:0}.sidebar-mobile-title{font-size:13px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.btn-sidebar-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:6px;display:flex;transition:color .15s}.btn-sidebar-close:hover{color:var(--text)}.sidebar-overlay{display:none;position:fixed;inset:0;background:#0000008c;z-index:99}.btn-admin{display:flex;align-items:center;gap:8px;width:100%;background:#10a37f1a;border:1px solid rgba(16,163,127,.25);border-radius:8px;color:var(--accent);cursor:pointer;font-size:12px;font-weight:600;padding:8px 12px;margin-bottom:8px;transition:background .15s}.btn-admin:hover{background:#10a37f2e}.pending-approval{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:8px 0}.pending-approval h2{font-size:17px;font-weight:700;color:var(--text)}.pending-approval p{font-size:13px;color:var(--text-muted);line-height:1.6}.admin-panel{min-height:100vh;background:var(--bg-main);display:flex;flex-direction:column}.admin-header{display:flex;align-items:center;gap:16px;padding:16px 24px;border-bottom:1px solid var(--border);background:var(--bg-sidebar)}.btn-back{display:flex;align-items:center;gap:6px;background:none;border:1px solid var(--border);border-radius:7px;color:var(--text-muted);cursor:pointer;font-size:13px;padding:6px 12px;transition:color .15s,border-color .15s}.btn-back:hover{color:var(--text);border-color:var(--text-muted)}.admin-title{font-size:18px;font-weight:700;color:var(--text)}.admin-loading{padding:48px;text-align:center;color:var(--text-muted);font-size:14px}.admin-empty{font-size:13px;color:var(--text-muted);padding:12px 0}.admin-content{padding:24px;display:flex;flex-direction:column;gap:32px;max-width:700px;width:100%}.admin-section{display:flex;flex-direction:column;gap:12px}.admin-section-title{font-size:13px;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;display:flex;align-items:center;gap:8px}.admin-badge{background:var(--accent);color:#fff;border-radius:10px;font-size:11px;font-weight:700;padding:1px 7px}.admin-user-list{display:flex;flex-direction:column;gap:8px}.admin-user-row{display:flex;align-items:center;gap:12px;background:var(--bg-sidebar);border:1px solid var(--border);border-radius:10px;padding:10px 14px}.admin-user-avatar{width:34px;height:34px;background:#5436da;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0}.admin-user-avatar--admin{background:#10a37f}.admin-error{margin:0 0 16px}.admin-user-info{display:flex;align-items:center;gap:8px;flex:1;overflow:hidden}.admin-user-email{font-size:13px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.admin-tag{background:#10a37f26;border:1px solid rgba(16,163,127,.3);color:var(--accent);font-size:10px;font-weight:700;padding:1px 7px;border-radius:6px;text-transform:uppercase;flex-shrink:0}.admin-user-actions{display:flex;gap:6px;flex-shrink:0;margin-left:auto}.btn-approve{background:#10a37f26;border:1px solid rgba(16,163,127,.4);border-radius:7px;color:var(--accent);cursor:pointer;font-size:12px;font-weight:600;padding:5px 14px;transition:background .15s}.btn-approve:hover{background:#10a37f47}.btn-approve:disabled{opacity:.5;cursor:not-allowed}.btn-revoke{background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:7px;color:#f87171;cursor:pointer;font-size:12px;font-weight:600;padding:5px 14px;transition:background .15s}.btn-revoke:hover{background:#ef444433}.btn-revoke:disabled{opacity:.5;cursor:not-allowed}@media(max-width:640px){.sidebar-overlay{display:block}.sidebar{position:fixed;top:0;left:0;height:100%;z-index:100;transform:translate(-100%);transition:transform .25s ease;width:min(280px,85vw);min-width:unset}.sidebar--open{transform:translate(0)}.sidebar-mobile-header,.chat-topbar{display:flex}.message-row{padding:8px 5%}.input-area{padding:12px}.auth-card{padding:28px 20px;margin:16px}.admin-content{padding:16px}}