@import "https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap";:root{--bg:#0f1117;--bg-elevated:#171b26;--bg-card:#1c2130;--border:#2a3144;--text:#e8ecf4;--text-muted:#8b95a8;--primary:#6366f1;--primary-hover:#818cf8;--primary-muted:#6366f126;--success:#34d399;--error:#f87171;--warning:#fbbf24;--radius:12px;--radius-sm:8px;--shadow:0 4px 24px #00000059;--font:"DM Sans", system-ui, sans-serif}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;margin:0;padding:0;line-height:1.5}a{color:var(--primary-hover);text-decoration:none}a:hover{text-decoration:underline}.btn{border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-family:inherit;font-size:14px;font-weight:600;transition:background .15s,border-color .15s,color .15s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn-outline{color:var(--text);border-color:var(--border);background:0 0}.btn-outline:hover:not(:disabled){background:var(--bg-elevated);border-color:var(--text-muted)}.btn-ghost{color:var(--text-muted);background:0 0;border-color:#0000}.btn-ghost:hover:not(:disabled){color:var(--text);background:var(--bg-elevated)}.btn-lg{padding:14px 24px;font-size:16px}.btn-sm{padding:6px 12px;font-size:13px}.btn-full{width:100%}label{color:var(--text-muted);flex-direction:column;gap:6px;font-size:13px;font-weight:500;display:flex}input,select,textarea{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text);padding:11px 14px;font-family:inherit;font-size:15px;transition:border-color 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20px;font-size:clamp(2rem,5vw,3rem);font-weight:700;line-height:1.15}.hero-subtitle{color:var(--text-muted);margin:0 0 36px;font-size:18px}.hero-actions{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.pricing-section{text-align:center;max-width:1100px;margin:0 auto;padding:60px 24px 80px}.pricing-section h2{margin:0 0 8px;font-size:2rem}.section-subtitle{color:var(--text-muted);margin-bottom:40px}.pricing-grid{text-align:left;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;display:grid}.pricing-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px}.pricing-card h3{margin:0 0 12px;font-size:18px}.pricing-card .price{margin:0 0 20px}.pricing-card .price span{font-size:36px;font-weight:700}.pricing-card .price small{color:var(--text-muted);font-size:14px}.pricing-card ul{margin:0;padding:0;list-style:none}.pricing-card li{border-top:1px solid var(--border);color:var(--text-muted);padding:8px 0;font-size:14px}.pricing-card li strong{color:var(--text)}.pricing-card-current{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary-muted);position:relative}.plan-badge{text-transform:uppercase;letter-spacing:.06em;color:var(--primary-hover);background:var(--primary-muted);border-radius:4px;margin-bottom:12px;padding:4px 8px;font-size:11px;font-weight:600;display:inline-block}.plan-selector-grid{margin-top:8px}.plan-selector .pricing-card .btn{margin-top:20px}.landing-footer{text-align:center;color:var(--text-muted);border-top:1px solid var(--border);padding:32px;font-size:13px}.auth-layout{background:radial-gradient(ellipse 60% 40% at 50% 0%, var(--primary-muted), transparent), var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:420px;box-shadow:var(--shadow);padding:36px}.auth-card h1{margin:0 0 8px;font-size:24px}.auth-card .muted-text{margin-bottom:24px}.auth-back{color:var(--text-muted);margin-bottom:24px;font-size:13px;display:inline-block}.auth-form{flex-direction:column;gap:16px;display:flex}.auth-footer{text-align:center;color:var(--text-muted);margin-top:24px;font-size:14px}.admin-layout{min-height:100vh;display:flex}.admin-sidebar{background:var(--bg-elevated);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:260px;padding:24px;display:flex}.admin-sidebar-brand{align-items:center;gap:10px;margin-bottom:32px;font-weight:700;display:flex}.admin-profile{background:var(--bg-card);border-radius:var(--radius-sm);align-items:center;gap:12px;margin-bottom:24px;padding:16px;display:flex}.avatar{background:var(--primary-muted);width:40px;height:40px;color:var(--primary-hover);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-weight:700;display:flex}.admin-profile strong{font-size:14px;display:block}.admin-profile .muted-text{text-overflow:ellipsis;font-size:12px;overflow:hidden}.admin-nav{flex-direction:column;flex:1;gap:4px;display:flex}.admin-nav-link{border-radius:var(--radius-sm);color:var(--text-muted);padding:10px 14px;font-size:14px;font-weight:500;text-decoration:none}.admin-nav-link:hover{background:var(--bg-card);color:var(--text);text-decoration:none}.admin-nav-link.active{background:var(--primary-muted);color:var(--primary-hover)}.admin-logout{margin-top:auto}.admin-main{flex:1;padding:32px 40px;overflow-y:auto}.admin-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:32px;display:flex}.admin-header h1{margin:0 0 4px;font-size:28px}.admin-grid{grid-template-columns:repeat(2,1fr);gap:24px;display:grid}.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.panel-wide{grid-column:1/-1}.panel h2{margin:0 0 8px;font-size:18px}.panel .muted-text{margin-bottom:20px}.stat-row{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.stat-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);flex-direction:column;gap:4px;padding:16px;display:flex}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:12px}.stat-value{font-size:22px;font-weight:700}.tier-badge{text-transform:capitalize;color:var(--primary-hover)}.embed-box{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:16px;padding:14px;overflow-x:auto}.embed-box code{color:var(--text-muted);word-break:break-all;font-size:13px}.embed-box-empty{opacity:.7}.file-upload{flex-direction:column;gap:12px;display:flex}.file-upload hr{border:none;border-top:1px solid var(--border);margin:8px 0}.file-upload input[type=file]{padding:8px}.file-upload textarea{resize:vertical;min-height:100px}.visitor-layout{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.visitor-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:440px;padding:36px}.visitor-loading{text-align:center;color:var(--text-muted)}.visitor-brand{align-items:center;gap:8px;margin-bottom:20px;font-weight:600;display:flex}.visitor-chat-layout{background:var(--bg);flex-direction:column;max-width:800px;height:100vh;margin:0 auto;display:flex}.visitor-chat-header{border-bottom:1px solid var(--border);background:var(--bg-elevated);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.visitor-error{padding:0 20px}.chat-panel{flex-direction:column;flex:1;min-height:0;padding:20px;display:flex}.chat-messages{flex-direction:column;flex:1;gap:12px;min-height:0;padding:4px;display:flex;overflow-y:auto}.chat-empty{text-align:center;max-width:320px;margin:auto}.message-bubble{border-radius:var(--radius);max-width:85%;padding:12px 16px;font-size:15px}.message-bubble strong{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:4px;font-size:11px;display:block}.message-bubble p{white-space:pre-wrap;margin:0;line-height:1.5}.message-user{background:var(--primary);color:#fff;align-self:flex-end}.message-user strong{color:#ffffffb3}.message-assistant{background:var(--bg-card);border:1px solid var(--border);align-self:flex-start}.chat-input-row{border-top:1px solid var(--border);align-items:flex-end;gap:10px;padding-top:16px;display:flex}.chat-input-row textarea{resize:none;flex:1;min-height:44px;max-height:120px}.chat-typing{align-self:flex-start;gap:4px;padding:12px 16px;display:flex}.chat-typing span{background:var(--text-muted);border-radius:50%;width:8px;height:8px;animation:1.2s infinite typing}.chat-typing span:nth-child(2){animation-delay:.2s}.chat-typing span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}@media (width<=900px){.admin-layout{flex-direction:column}.admin-sidebar{border-right:none;border-bottom:1px solid var(--border);width:100%}.admin-grid,.stat-row{grid-template-columns:1fr}.admin-main{padding:24px 20px}.landing-header{padding:16px 20px}}