:root{color-scheme:light;--brand-primary: #0B2E4F;--brand-primary-soft: #0F3A5F;--brand-accent: #007AC3;--brand-warning: #E5A000;--brand-success: #0A8754;--bg: #FFFFFF;--bg-soft: #F5F7FA;--text-strong: #1A1A1A;--text-muted: #4A5568;--border: #E2E8F0;--radius: 8px;--radius-sm: 6px;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6}body{margin:0;padding:0;background:var(--bg);color:var(--text-strong);font-size:17px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3{color:var(--brand-primary);letter-spacing:-.01em;margin:0 0 12px}h1{font-size:36px;line-height:1.15;font-weight:700;letter-spacing:-.02em}h2{font-size:28px;line-height:1.2;font-weight:700}h3{font-size:20px;line-height:1.3;font-weight:600}@media (min-width: 768px){h1{font-size:56px}h2{font-size:40px}h3{font-size:24px}}a{color:var(--brand-accent);text-underline-offset:3px}a:hover{text-decoration:underline}.container{max-width:900px;margin:0 auto;padding:24px}.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:0 1px 2px #0f172a0a}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;box-sizing:border-box;background:var(--brand-primary);color:#fff;border:1px solid var(--brand-primary);border-radius:var(--radius-sm);padding:10px 18px;font-family:inherit;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;text-decoration:none;transition:background .12s ease,border-color .12s ease,color .12s ease}.btn:hover{background:var(--brand-primary-soft);border-color:var(--brand-primary-soft);text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-outline{background:#fff;color:var(--brand-primary);border:1px solid var(--border)}.btn-outline:hover{background:var(--bg-soft);border-color:var(--brand-primary);color:var(--brand-primary)}.btn-ghost{background:transparent;color:var(--brand-primary);border:1px solid transparent}.btn-ghost:hover{background:var(--bg-soft)}.btn-lg{padding:14px 22px;font-size:16px}.btn-block{width:100%}.message{border-left:3px solid var(--border);padding:8px 12px;margin:8px 0;background:#fff;border-radius:4px}.message.user{border-color:var(--brand-accent)}.message.moderator{border-color:#9b59b6}.message.specialist{border-color:var(--brand-success)}.message.system{border-color:#95a5a6;background:#f7f7f7}.message small{display:block;color:var(--text-muted);font-size:12px;margin-bottom:4px}.message-body>:first-child{margin-top:0}.message-body>:last-child{margin-bottom:0}.message-body p{margin:.5em 0}.message-body ul,.message-body ol{padding-left:1.4em;margin:.5em 0}.message-body code{background:#f0f0f0;padding:1px 4px;border-radius:3px;font-size:.9em}.message-body pre{background:#1e1e1e;color:#f5f5f5;padding:10px 12px;border-radius:6px;overflow-x:auto}.message-body pre code{background:transparent;color:inherit;padding:0}.message-body blockquote{border-left:3px solid var(--border);margin:.5em 0;padding-left:10px;color:var(--text-muted)}.message-body table{border-collapse:collapse;margin:.5em 0}.message-body th,.message-body td{border:1px solid var(--border);padding:4px 8px}.thinking-indicator{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;margin:8px 0;background:#eef4ff;border:1px solid #d6e4ff;border-radius:18px;color:var(--brand-primary);font-size:14px}.thinking-dots{display:inline-flex;gap:4px}.thinking-dots span{width:6px;height:6px;border-radius:50%;background:var(--brand-accent);animation:thinking-bounce 1.2s infinite ease-in-out both}.thinking-dots span:nth-child(1){animation-delay:-.32s}.thinking-dots span:nth-child(2){animation-delay:-.16s}@keyframes thinking-bounce{0%,80%,to{transform:scale(.6);opacity:.5}40%{transform:scale(1);opacity:1}}input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);box-sizing:border-box;margin-bottom:8px;font-family:inherit;font-size:15px;color:var(--text-strong);background:#fff}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand-accent);box-shadow:0 0 0 3px #007ac326}.auth-page{min-height:100vh;display:flex;flex-direction:column;background:var(--bg-soft)}.auth-header{position:sticky;top:0;z-index:10;background:#ffffffd9;-webkit-backdrop-filter:saturate(180%) blur(8px);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--border)}.auth-header-inner{max-width:1200px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand-link{font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--brand-primary);text-decoration:none}.brand-link:hover{text-decoration:none;color:var(--brand-primary-soft)}.auth-main{flex:1;display:flex;align-items:flex-start;justify-content:center;padding:48px 20px 64px}.auth-shell{width:100%;max-width:460px;display:flex;flex-direction:column;gap:18px}.auth-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:32px 28px;box-shadow:0 4px 16px #0b2e4f0f}.auth-eyebrow{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin:0 0 8px}.auth-card h1{font-size:28px;line-height:1.2;margin:0 0 8px}@media (min-width: 768px){.auth-card h1{font-size:32px}}.auth-lead{margin:0 0 24px;color:var(--text-muted);font-size:16px;line-height:1.5}.auth-actions{display:flex;flex-direction:column;gap:10px}.auth-divider{display:flex;align-items:center;gap:12px;margin:8px 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