*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,sans-serif;background:#f0f4f8;min-height:100vh}.top-bar{position:fixed;top:0;left:0;right:0;z-index:50;background:#0e1e47;border-bottom:1px solid rgba(255,255,255,.08);height:64px;display:flex;align-items:center;padding:0 1.5rem;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px;text-decoration:none}.logo-icon{width:36px;height:36px;background:#1e7d45;border-radius:6px;display:flex;align-items:center;justify-content:center}.logo-icon span{color:#fff;font-weight:900;font-size:15px}.logo-text{color:#fff;font-weight:800;font-size:15px}.top-bar-right{display:flex;align-items:center;gap:12px}.lang-toggle{display:inline-flex;gap:0;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:999px;padding:2px;overflow:hidden}.lang-btn{background:transparent;color:#64748b;font-size:12px;font-weight:600;padding:5px 12px;border:0;border-radius:999px;cursor:pointer;transition:all .15s;white-space:nowrap;font-family:inherit}.lang-btn:hover{color:#0e1e47}.lang-btn.on{background:#0e1e47;color:#fff;box-shadow:0 1px 3px #0e1e4733}@media(max-width:640px){.lang-toggle{display:none}}.back-btn{color:#fff9;text-decoration:none;font-size:13px;display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:6px;transition:all .2s}.back-btn:hover{background:#ffffff14;color:#fff}.user-badge{background:#1e7d45;color:#fff;font-size:13px;font-weight:600;padding:6px 14px;border-radius:20px}#auth-overlay{position:fixed;inset:0;background:#0e1e47f7;display:flex;align-items:center;justify-content:center;z-index:100}.auth-card{background:#fff;border-radius:20px;padding:48px 40px;max-width:420px;width:90%;text-align:center;box-shadow:0 25px 60px #00000059}.auth-icon{width:72px;height:72px;background:#f4a261;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:32px;font-weight:800;color:#fff;font-family:Inter,sans-serif;letter-spacing:-.02em;box-shadow:0 4px 14px #f4a26166}.auth-title{font-size:22px;font-weight:700;color:#0e1e47;margin-bottom:10px}.auth-sub{color:#64748b;font-size:14px;line-height:1.6;margin-bottom:28px}.btn-login{display:block;background:#1e7d45;color:#fff;padding:14px 32px;border-radius:10px;font-weight:600;font-size:15px;text-decoration:none;margin-bottom:10px;transition:opacity .2s}.btn-login:hover{opacity:.9}.btn-register{display:block;background:#f1f5f9;color:#0e1e47;padding:12px 32px;border-radius:10px;font-weight:500;font-size:14px;text-decoration:none;transition:background .2s}.btn-register:hover{background:#e2e8f0}#chat-app{display:none;padding-top:64px;height:100vh}.chat-layout{display:flex;height:calc(100vh - 64px)}.sidebar{width:280px;background:#0e1e47;flex-shrink:0;display:flex;flex-direction:column;overflow-y:auto;border-right:1px solid rgba(255,255,255,.08)}.sidebar-header{padding:16px 16px 10px;flex-shrink:0;position:sticky;top:0;z-index:10;background:#0e1e47}.sidebar-title{color:#ffffff80;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}.new-chat-btn{width:100%;background:#1e7d45;color:#fff;border:none;padding:10px 14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:8px;transition:opacity .2s}.new-chat-btn:hover{opacity:.9}.sidebar-section{padding:0 12px 8px;flex-shrink:0}.sidebar-section-title{color:#ffffff59;font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;margin-bottom:6px;margin-top:14px;padding:0 4px}#conversations-list{padding:0 12px 4px}.conv-item{display:flex;flex-direction:column;width:100%;text-align:left;background:transparent;border:none;padding:8px 10px;border-radius:8px;cursor:pointer;transition:all .15s;margin-bottom:2px;gap:2px}.conv-item:hover{background:#ffffff14}.conv-item.active{background:#1e7d4540;border-left:2px solid #1e7d45}.conv-title{color:#fffc;font-size:12.5px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:220px}.conv-item.active .conv-title{color:#fff}.conv-time{color:#ffffff4d;font-size:10.5px}.conv-empty{color:#ffffff4d;font-size:12px;padding:8px 10px;font-style:italic}.conv-load-more,.conv-archive-toggle{display:block;width:100%;text-align:center;background:#ffffff0a;border:1px dashed rgba(255,255,255,.12);color:#ffffff8c;font-size:11.5px;padding:7px 8px;border-radius:8px;cursor:pointer;margin-top:6px;transition:all .15s}.conv-load-more:hover,.conv-archive-toggle:hover{background:#ffffff14;color:#ffffffd9;border-color:#fff3}.load-older-btn{display:block;margin:0 auto 16px;padding:10px 18px;background:#fff;border:1px solid #e2e8f0;color:#475569;font-size:13px;font-weight:500;border-radius:999px;cursor:pointer;transition:all .15s;box-shadow:0 2px 8px #0f172a0a}.load-older-btn:hover{background:#f1f5f9;color:#1e293b;border-color:#cbd5e1}.topic-btn{display:block;width:100%;text-align:left;background:transparent;border:none;color:#ffffff8c;font-size:12px;padding:6px 10px;border-radius:6px;cursor:pointer;transition:all .15s;margin-bottom:2px}.topic-btn:hover{background:#ffffff12;color:#ffffffd9}.sidebar-footer{margin-top:auto;padding:12px;flex-shrink:0}.quota-badge{background:#ffffff0f;border-radius:10px;padding:10px 12px;margin-bottom:8px}.quota-label{color:#fff6;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}.quota-bar-wrap{background:#ffffff1a;border-radius:4px;height:5px;overflow:hidden}.quota-bar{height:100%;background:#1e7d45;border-radius:4px;transition:width .4s ease}.quota-bar.warn{background:#f59e0b}.quota-bar.full{background:#ef4444}.quota-count{color:#ffffff73;font-size:11px;margin-top:5px}.sidebar-info{background:#ffffff0d;border-radius:8px;padding:10px 12px}.sidebar-info p{color:#ffffff59;font-size:11px;line-height:1.6}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0;background:#f8fafc}.socratic-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:#f8fafc;border:1.5px solid #e2e8f0;color:#64748b;font-size:12px;font-weight:600;border-radius:999px;cursor:pointer;transition:all .2s;font-family:inherit;margin-right:8px}.socratic-pill:hover{background:#f1f5f9;border-color:#cbd5e1}.socratic-pill.on{background:linear-gradient(135deg,#1e7d45,#10b981);border-color:#10b981;color:#fff;box-shadow:0 2px 8px #1e7d454d}.socratic-pill-icon{font-size:14px}.socratic-pill-state{padding:1px 6px;border-radius:4px;font-size:10px;font-weight:800;letter-spacing:.5px;background:#fff3}.socratic-pill:not(.on) .socratic-pill-state{background:#f1f5f9;color:#94a3b8}.chat-header{background:#fff;border-bottom:1px solid #e2e8f0;padding:14px 24px;display:flex;align-items:center;gap:14px;flex-shrink:0;box-shadow:0 1px 4px #0000000d}.ai-avatar{width:42px;height:42px;border-radius:50%;flex-shrink:0;background:#f4a261;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:800;color:#fff;font-family:Inter,sans-serif;letter-spacing:-.02em;box-shadow:0 2px 8px #f4a26159}.chat-header-info{flex:1}.chat-header-name{font-weight:700;font-size:15px;color:#0e1e47}.chat-header-status{font-size:12px;color:#10b981;display:flex;align-items:center;gap:4px}.status-dot{width:6px;height:6px;background:#10b981;border-radius:50%}.level-badge{background:#eff6ff;color:#2d54a0;font-size:12px;font-weight:600;padding:4px 10px;border-radius:20px;border:1px solid #bfdbfe}#messages-container{flex:1;overflow-y:auto;padding:32px 24px 24px;display:flex;flex-direction:column;gap:28px;scroll-behavior:smooth;background:linear-gradient(180deg,#f7f9fc,#f0f4f8)}#messages-container::-webkit-scrollbar{width:10px}#messages-container::-webkit-scrollbar-track{background:transparent}#messages-container::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:5px;border:2px solid transparent;background-clip:padding-box}#messages-container::-webkit-scrollbar-thumb:hover{background:#94a3b8;background-clip:padding-box}.message{display:flex;gap:14px;max-width:860px;animation:slideIn .3s cubic-bezier(.16,1,.3,1)}@keyframes slideIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;flex-direction:row-reverse}.message.assistant{align-self:flex-start;width:100%}.msg-avatar{width:38px;height:38px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;box-shadow:0 2px 8px #0e1e471f}.msg-avatar.ai{background:#f4a261;color:#fff;font-weight:800;font-family:Inter,sans-serif;letter-spacing:-.02em;box-shadow:0 4px 14px #f4a26159,0 2px 4px #f4a26133}.msg-avatar.user{background:linear-gradient(135deg,#0e1e47,#1e3a8a);color:#fff;font-size:14px}.msg-wrap{display:flex;flex-direction:column;gap:6px;max-width:calc(100% - 52px);min-width:0}.message.user .msg-wrap{align-items:flex-end;max-width:70%}.message.assistant .msg-wrap{align-items:flex-start;flex:1}.msg-label{font-size:11px;font-weight:700;color:#64748b;letter-spacing:.04em;padding:0 4px;display:flex;align-items:center;gap:6px}.msg-label .dot{width:6px;height:6px;border-radius:50%;background:#10b981}.message.user .msg-label{color:#0e1e47}.msg-bubble{padding:14px 18px;font-size:15px;line-height:1.7;word-wrap:break-word;word-break:break-word;position:relative}.message.user .msg-bubble{background:linear-gradient(135deg,#1e7d45,#166534);color:#fff;border-radius:18px 18px 4px;white-space:pre-wrap;box-shadow:0 4px 14px #1e7d4540,0 1px 3px #1e7d4526;max-width:100%}.message.user .msg-bubble:after{content:"";position:absolute;bottom:0;right:-6px;width:12px;height:12px;background:linear-gradient(135deg,#1e7d45,#166534);clip-path:polygon(0 0,0 100%,100% 100%)}.message.assistant .msg-bubble{background:#fff;color:#0f172a;border-radius:4px 18px 18px;box-shadow:0 4px 20px #0e1e470f,0 1px 3px #0e1e470a;border:1px solid #e7edf5;padding:18px 22px;width:100%;unicode-bidi:plaintext}.message.assistant .msg-bubble p,.message.assistant .msg-bubble li,.message.assistant .msg-bubble h1,.message.assistant .msg-bubble h2,.message.assistant .msg-bubble h3,.message.assistant .msg-bubble blockquote,.message.user .msg-bubble{unicode-bidi:plaintext}.message.assistant .msg-bubble .katex,.message.assistant .msg-bubble .katex-display{direction:ltr;unicode-bidi:isolate}.message.assistant .msg-bubble{column-count:1!important;columns:auto!important;word-break:normal;overflow-wrap:break-word}.message.assistant .msg-bubble p,.message.assistant .msg-bubble li{word-break:normal;overflow-wrap:break-word}.message.assistant .msg-bubble img{max-width:100%;height:auto}.message.assistant .msg-bubble p{margin:0 0 12px}.message.assistant .msg-bubble p:last-child{margin-bottom:0}.message.assistant .msg-bubble strong{font-weight:700;color:#0e1e47}.message.assistant .msg-bubble em{font-style:italic;color:#475569}.message.assistant .msg-bubble h1,.message.assistant .msg-bubble h2{font-size:17px;font-weight:800;color:#0e1e47;margin:20px 0 10px;padding-bottom:6px;border-bottom:2px solid #e7edf5;letter-spacing:-.01em}.message.assistant .msg-bubble h1:first-child,.message.assistant .msg-bubble h2:first-child{margin-top:0}.message.assistant .msg-bubble h3{font-size:15px;font-weight:700;color:#1e7d45;margin:16px 0 8px;padding-right:10px;border-right:3px solid #1e7d45;line-height:1.4}.message.assistant .msg-bubble ul,.message.assistant .msg-bubble ol{padding-left:24px;margin:10px 0}.message.assistant .msg-bubble li{margin-bottom:6px;line-height:1.65}.message.assistant .msg-bubble li::marker{color:#1e7d45;font-weight:700}.message.assistant .msg-bubble code{background:#f1f5f9;color:#0e1e47;padding:2px 8px;border-radius:6px;font-family:JetBrains Mono,Courier New,monospace;font-size:13px;border:1px solid #e2e8f0}.message.assistant .msg-bubble pre{background:#0f172a;color:#e2e8f0;padding:16px 18px;border-radius:12px;overflow-x:auto;margin:12px 0;font-size:13px;border:1px solid #1e293b;line-height:1.6}.message.assistant .msg-bubble pre code{background:none;border:none;padding:0;color:inherit}.message.assistant .msg-bubble blockquote{border-left:3px solid #1e7d45;padding:10px 16px;margin:12px 0;background:#f0fdf4;color:#166534;border-radius:0 10px 10px 0;font-style:italic}.message.assistant .msg-bubble a{color:#1e7d45;text-decoration:underline;text-underline-offset:2px;font-weight:500}.message.assistant .msg-bubble a:hover{color:#166534}.message.assistant .msg-bubble hr{border:none;border-top:1px solid #e7edf5;margin:16px 0}.message.assistant .msg-bubble .katex{font-size:1.08em}.message.assistant .msg-bubble .katex-display{margin:14px 0;overflow-x:auto;padding:14px 16px;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-radius:10px;border:1px solid #e2e8f0;text-align:center}.message.assistant .msg-bubble table{border-collapse:collapse;width:100%;margin:12px 0;font-size:14px}.message.assistant .msg-bubble th,.message.assistant .msg-bubble td{border:1px solid #e2e8f0;padding:8px 12px;text-align:left}.message.assistant .msg-bubble th{background:#f8fafc;font-weight:700;color:#0e1e47}.bilan-btn{width:100%;background:linear-gradient(135deg,#1e3d80,#162d63);color:#fff;border:none;padding:10px 14px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:8px;transition:opacity .2s;margin-top:8px}.bilan-btn:hover{opacity:.9}.bilan-btn:disabled{opacity:.5;cursor:not-allowed}#bilan-modal{position:fixed;inset:0;background:#0009;z-index:300;display:flex;align-items:center;justify-content:center;padding:16px}.bilan-card{background:#fff;border-radius:20px;width:100%;max-width:640px;max-height:90vh;overflow-y:auto;box-shadow:0 25px 60px #0000004d}.bilan-header{background:linear-gradient(135deg,#1e3d80,#162d63);color:#fff;padding:28px 32px 20px;border-radius:20px 20px 0 0}.bilan-title{font-size:20px;font-weight:800;margin-bottom:4px}.bilan-subtitle{font-size:13px;opacity:.8}.bilan-body{padding:24px 32px}.bilan-note{display:flex;align-items:center;gap:12px;background:#faf5ff;border:1px solid #e9d5ff;border-radius:12px;padding:14px 18px;margin-bottom:20px}.bilan-note-stars{font-size:22px;letter-spacing:2px}.bilan-note-text{font-size:14px;color:#6b21a8;font-style:italic}.bilan-section{margin-bottom:20px}.bilan-section-title{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-bottom:10px;display:flex;align-items:center;gap:6px}.bilan-section-title.green{color:#1e7d45}.bilan-section-title.red{color:#dc2626}.bilan-section-title.blue{color:#2563eb}.bilan-section-title.purple{color:#1e3d80}.bilan-tag{display:inline-block;background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;font-size:12px;padding:4px 10px;border-radius:20px;margin:3px}.bilan-lacune{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:12px 14px;margin-bottom:8px}.bilan-lacune-title{font-weight:700;color:#c2410c;font-size:13px;margin-bottom:4px}.bilan-lacune-desc{color:#78350f;font-size:12px;margin-bottom:4px}.bilan-lacune-conseil{color:#92400e;font-size:12px;font-style:italic}.bilan-conseil{display:flex;gap:8px;font-size:13px;color:#1e40af;margin-bottom:6px}.bilan-encouragement{background:linear-gradient(135deg,#f0fdf4,#eff6ff);border-radius:12px;padding:16px 18px;font-size:14px;color:#1e293b;line-height:1.6;font-style:italic;border:1px solid #e2e8f0;margin-top:16px}.bilan-actions{display:flex;gap:10px;margin-top:24px}.bilan-dl-btn{flex:1;background:#1e3d80;color:#fff;border:none;padding:12px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .2s}.bilan-dl-btn:hover{opacity:.9}.bilan-close-btn{background:#f1f5f9;color:#475569;border:none;padding:12px 20px;border-radius:10px;font-size:14px;font-weight:500;cursor:pointer}.suggestions{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px}.suggestion-card{display:inline-flex;align-items:center;gap:6px;background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8;font-size:12px;font-weight:500;padding:5px 11px;border-radius:20px;text-decoration:none;transition:all .15s}.suggestion-card:hover{background:#dbeafe;border-color:#93c5fd;transform:translateY(-1px)}.suggestion-label{font-size:10px;color:#64748b;margin-bottom:4px;font-weight:600;text-transform:uppercase;letter-spacing:.06em}.msg-coach-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;padding-top:14px;border-top:1px dashed #e2e8f0}.msg-coach-actions .msg-action-btn{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#eef2f9,#eef2f9);border:1px solid #d5dff0;color:#6d28d9;font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:999px;cursor:pointer;transition:all .15s;font-family:inherit}.msg-coach-actions .msg-action-btn:hover{background:linear-gradient(135deg,#eef2f9,#d5dff0);border-color:#adbfe1;color:#162d63;transform:translateY(-1px);box-shadow:0 2px 8px #7c3aed26}.msg-coach-actions .msg-action-btn:active{transform:translateY(0)}.quick-replies-row{margin-top:14px;padding:12px 14px;background:linear-gradient(135deg,#f0fdf4,#ecfdf5);border:1px solid #bbf7d0;border-radius:12px}.quick-replies-label{font-size:11px;color:#15803d;font-weight:700;text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;display:flex;align-items:center;gap:4px}.quick-replies-label span{font-weight:600}.quick-replies-btns{display:flex;flex-wrap:wrap;gap:6px}.quick-reply-btn{padding:8px 14px;background:#fff;border:1.5px solid #86efac;color:#166534;font-size:13px;font-weight:600;border-radius:999px;cursor:pointer;transition:all .15s;font-family:inherit}.quick-reply-btn:hover{background:#1e7d45;border-color:#1e7d45;color:#fff;transform:translateY(-1px);box-shadow:0 3px 10px #1e7d454d}.quick-reply-btn:active{transform:translateY(0)}.quick-actions-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;padding-top:10px;border-top:1px dashed #e2e8f0}.quick-action-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 12px;background:#f8fafc;border:1px solid #e2e8f0;color:#475569;font-size:12px;font-weight:500;border-radius:999px;cursor:pointer;transition:all .15s;font-family:inherit;white-space:nowrap}.quick-action-btn:hover{background:#1e7d45;border-color:#1e7d45;color:#fff;transform:translateY(-1px);box-shadow:0 2px 6px #1e7d4540}.quick-action-btn:active{transform:translateY(0)}.quick-action-btn span{font-size:14px}.msg-actions{display:flex;gap:6px;margin-top:5px;opacity:0;transition:opacity .2s}.message:hover .msg-actions{opacity:1}.copy-btn{display:flex;align-items:center;gap:4px;background:none;border:1px solid #e2e8f0;color:#94a3b8;font-size:11px;padding:3px 9px;border-radius:6px;cursor:pointer;transition:all .15s;font-family:inherit}.copy-btn:hover{background:#f1f5f9;color:#475569;border-color:#cbd5e1}.copy-btn.copied{color:#1e7d45;border-color:#bbf7d0;background:#f0fdf4}.conv-name{font-size:11px;color:#64748b;font-weight:400;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px;margin-left:4px}.typing-indicator{display:flex;align-items:center;gap:4px;padding:14px 16px}.typing-dot{width:8px;height:8px;background:#94a3b8;border-radius:50%;animation:typing 1.2s ease infinite}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}.conv-loading{display:flex;align-items:center;gap:6px;padding:8px 10px}.conv-loading-dot{width:5px;height:5px;background:#ffffff4d;border-radius:50%;animation:typing 1s ease infinite}.conv-loading-dot:nth-child(2){animation-delay:.15s}.conv-loading-dot:nth-child(3){animation-delay:.3s}.welcome{text-align:center;padding:40px 20px;max-width:520px;margin:auto}.welcome-icon{font-size:56px;margin-bottom:16px}.welcome-title{font-size:22px;font-weight:700;color:#0e1e47;margin-bottom:10px}.welcome-sub{color:#64748b;font-size:14px;line-height:1.7;margin-bottom:28px}.quick-questions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.quick-btn{background:#fff;border:1px solid #e2e8f0;color:#374151;padding:9px 14px;border-radius:20px;font-size:13px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px;box-shadow:0 1px 3px #0000000f}.quick-btn:hover{background:#0e1e47;color:#fff;border-color:#0e1e47;transform:translateY(-1px)}.input-area{background:#fff;border-top:1px solid #e2e8f0;padding:12px 24px 16px;display:flex;flex-direction:column;gap:8px;flex-shrink:0}.input-row{display:flex;align-items:flex-end;gap:10px}.input-wrapper{flex:1;position:relative}#chat-input{width:100%;resize:none;border:2px solid #e2e8f0;border-radius:14px;padding:12px 16px;font-size:14px;font-family:inherit;line-height:1.5;max-height:140px;overflow-y:auto;outline:none;transition:border-color .2s;background:#f8fafc;color:#1e293b}#chat-input:focus{border-color:#1e7d45;background:#fff}#chat-input::placeholder{color:#94a3b8}#chat-input:disabled{opacity:.6;cursor:not-allowed}#send-btn{width:46px;height:46px;background:#1e7d45;border:none;border-radius:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}#send-btn:hover{background:#166534;transform:scale(1.05)}#send-btn:disabled{background:#cbd5e1;cursor:not-allowed;transform:none}#send-btn svg{width:20px;height:20px;color:#fff}.input-hint{font-size:11px;color:#94a3b8;margin-top:6px;padding-left:4px}#upload-btn{width:46px;height:46px;background:#f8fafc;border:2px solid #e2e8f0;border-radius:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0;color:#64748b}#upload-btn:hover{background:#e0f2fe;border-color:#0ea5e9;color:#0284c7}#upload-btn.has-image{background:#dcfce7;border-color:#22c55e;color:#1e7d45}#upload-btn svg{width:20px;height:20px}#camera-btn{width:46px;height:46px;background:linear-gradient(135deg,#fef3c7,#fde68a);border:2px solid #fbbf24;border-radius:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0;color:#92400e;position:relative}#camera-btn:hover{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#fff;transform:scale(1.05);box-shadow:0 4px 12px #fbbf2466}#camera-btn svg{width:22px;height:22px}#camera-btn:before{content:"📚";position:absolute;top:-6px;right:-6px;font-size:10px;background:#1e7d45;color:#fff;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:2px solid white}#mic-btn{width:46px;height:46px;background:#f8fafc;border:2px solid #e2e8f0;border-radius:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0;color:#64748b;position:relative}#mic-btn:hover{background:#fef3c7;border-color:#f59e0b;color:#d97706}#mic-btn svg{width:20px;height:20px}#mic-btn.recording{background:#fef2f2;border-color:#ef4444;color:#dc2626;animation:micPulse 1.4s ease-in-out infinite}#mic-btn.recording:after{content:"";position:absolute;top:-4px;right:-4px;width:12px;height:12px;background:#ef4444;border-radius:50%;border:2px solid white;animation:dotBlink .8s ease-in-out infinite}@keyframes micPulse{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 0 10px #ef444400}}@keyframes dotBlink{0%,to{opacity:1}50%{opacity:.3}}#mic-btn.unsupported{display:none}.image-preview-bar{display:none;align-items:center;gap:10px;padding:8px 12px;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:10px}.image-preview-bar.visible{display:flex}.preview-thumb{width:44px;height:44px;object-fit:cover;border-radius:6px;border:1px solid #86efac;flex-shrink:0}.preview-name{flex:1;font-size:12px;color:#166534;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preview-hint{font-size:11px;color:#4ade80}#remove-image-btn{width:22px;height:22px;border:none;background:#fecaca;color:#dc2626;border-radius:50%;cursor:pointer;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;flex-shrink:0;transition:background .15s}#remove-image-btn:hover{background:#fca5a5}.msg-image-thumb{max-width:200px;max-height:160px;border-radius:8px;display:block;margin-bottom:6px;border:1px solid rgba(255,255,255,.3)}@media(max-width:768px){.sidebar{display:none}#messages-container{padding:16px}.input-area{padding:12px 16px}.message{max-width:95%}}.settings-block{padding:10px 16px 6px}.settings-label{color:#ffffff59;font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px;display:block}.toggle-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.toggle-desc{color:#ffffff8c;font-size:12px;line-height:1.3}.toggle-desc small{color:#ffffff4d;font-size:10.5px;display:block;margin-top:1px}.toggle-switch{position:relative;width:36px;height:20px;flex-shrink:0;background:#ffffff26;border-radius:10px;cursor:pointer;border:none;transition:background .2s;margin-left:8px}.toggle-switch.on{background:#1e7d45}.toggle-knob{position:absolute;top:2px;left:2px;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform .2s}.toggle-switch.on .toggle-knob{transform:translate(16px)}.model-btns{display:flex;gap:6px}.model-btn{flex:1;padding:6px 4px;border:1px solid rgba(255,255,255,.15);background:#ffffff0f;color:#ffffff80;border-radius:8px;font-size:11px;font-weight:500;cursor:pointer;transition:all .15s;text-align:center;line-height:1.4}.model-btn:hover{background:#ffffff1a;color:#fffc}.model-btn.active{background:#1e7d454d;border-color:#1e7d45;color:#fff;font-weight:600}.settings-divider{border:none;border-top:1px solid rgba(255,255,255,.08);margin:10px 16px}.parcours-item{display:flex;align-items:center;gap:8px;background:transparent;border:none;width:100%;text-align:left;padding:6px 10px;border-radius:8px;cursor:pointer;transition:background .15s;margin-bottom:2px;text-decoration:none}.parcours-item:hover{background:#ffffff12}.parcours-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.parcours-dot.hard{background:#ef4444}.parcours-dot.medium{background:#f59e0b}.parcours-dot.easy{background:#22c55e}.parcours-name{color:#ffffffbf;font-size:12px;font-weight:500;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.parcours-badge{color:#ffffff59;font-size:10.5px;flex-shrink:0}.parcours-clear{display:block;width:100%;margin-top:6px;background:#ffffff0a;border:1px dashed rgba(255,255,255,.1);color:#ffffff4d;font-size:10.5px;padding:5px 8px;border-radius:6px;cursor:pointer;text-align:center;transition:all .15s}.parcours-clear:hover{background:#ffffff14;color:#ffffff80}.proactive-card{background:linear-gradient(135deg,#f0fdf4,#eff6ff);border:1px solid #bfdbfe;border-radius:14px;padding:16px 18px;margin-bottom:20px;text-align:left}.proactive-title{font-size:13.5px;font-weight:700;color:#0e1e47;margin-bottom:8px}.proactive-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}.proactive-chip{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:20px;font-size:12px;font-weight:500;cursor:pointer;border:none;transition:all .15s;font-family:inherit}.proactive-chip.hard{background:#fee2e2;color:#b91c1c}.proactive-chip.hard:hover{background:#fecaca}.proactive-chip.medium{background:#fef3c7;color:#92400e}.proactive-chip.medium:hover{background:#fde68a}.proactive-sub{font-size:11.5px;color:#64748b}.ped-mode-row{display:flex;gap:7px;flex-wrap:wrap;padding-bottom:2px}.ped-btn{display:inline-flex;align-items:center;gap:5px;background:#fff;border:1.5px solid #e2e8f0;color:#475569;font-size:12.5px;font-weight:500;padding:6px 13px;border-radius:20px;cursor:pointer;transition:all .18s;font-family:inherit;white-space:nowrap}.ped-btn:hover{border-color:#1e7d45;color:#1e7d45;background:#f0fdf4}.ped-btn.active{background:#f0fdf4;border-color:#1e7d45;color:#1e7d45;font-weight:600}.ped-btn.verif-btn{color:#2563eb;border-color:#bfdbfe;background:#eff6ff}.ped-btn.verif-btn:hover{background:#dbeafe;border-color:#93c5fd}.ped-btn.verif-btn.active{background:#dbeafe;border-color:#3b82f6;font-weight:600}.ped-btn.solution-btn{color:#1e3d80;border-color:#d5dff0;background:#eef2f9}.ped-btn.solution-btn:hover{background:#eef2f9;border-color:#7a97cc}.hint-counter{background:#fef9c3;border:1px solid #fde047;color:#854d0e;font-size:10.5px;font-weight:700;padding:1px 7px;border-radius:10px;margin-left:1px}#solution-confirm-modal{position:fixed;inset:0;background:#00000080;z-index:250;display:flex;align-items:center;justify-content:center;padding:16px}.sol-card{background:#fff;border-radius:18px;padding:32px 28px;max-width:360px;width:100%;text-align:center;box-shadow:0 20px 50px #00000040}.sol-icon{font-size:44px;margin-bottom:12px}.sol-title{font-size:18px;font-weight:700;color:#0e1e47;margin-bottom:10px}.sol-text{color:#64748b;font-size:14px;line-height:1.65;margin-bottom:24px}.sol-btns{display:flex;gap:10px}.sol-btn-retry{flex:1;background:#f0fdf4;color:#1e7d45;border:1.5px solid #bbf7d0;padding:12px;border-radius:10px;font-size:13.5px;font-weight:600;cursor:pointer;transition:background .15s}.sol-btn-retry:hover{background:#dcfce7}.sol-btn-yes{flex:1;background:#1e3d80;color:#fff;border:none;padding:12px;border-radius:10px;font-size:13.5px;font-weight:600;cursor:pointer;transition:opacity .15s}.sol-btn-yes:hover{opacity:.88}.toast{position:fixed;bottom:80px;right:20px;color:#fff;padding:12px 18px;border-radius:10px;font-size:13px;font-weight:500;box-shadow:0 4px 16px #00000040;z-index:200;animation:slideUp .3s ease}.toast.error{background:#ef4444;box-shadow:0 4px 16px #ef444466}.toast.warning{background:#f59e0b;box-shadow:0 4px 16px #f59e0b66}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}