*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--burgundy:#6B1527;--burgundy-dark:#4A0E1B;--burgundy-light:#8B2038;--gold:#C9A96E;--gold-light:#E2CFA0;--cream:#FBF8F4;--cream-dark:#F3EDE4;--white:#FFFFFF;--text:#2D2127;--text-light:#6B5E65;--text-muted:#9B8F94;--border:rgba(107,21,39,0.08);--shadow:0 4px 24px rgba(43,14,22,0.08);--shadow-lg:0 12px 48px rgba(43,14,22,0.12);--radius:16px;--radius-sm:10px;--font-display:'Playfair Display',Georgia,serif;--font-body:'DM Sans',-apple-system,sans-serif}
html{height:100%}
body{font-family:var(--font-body);color:var(--text);min-height:100%;-webkit-font-smoothing:antialiased}
.page-login{background:var(--cream);display:flex;align-items:center;justify-content:center;min-height:100dvh;position:relative;overflow:hidden}
.login-bg{position:fixed;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(107,21,39,0.06) 0%,transparent 60%),radial-gradient(ellipse at 70% 80%,rgba(201,169,110,0.08) 0%,transparent 50%);pointer-events:none}
.login-container{position:relative;z-index:1;width:100%;max-width:420px;padding:24px}
.login-card{background:var(--white);border-radius:20px;padding:48px 36px 36px;box-shadow:var(--shadow-lg);border:1px solid var(--border);animation:cardIn 0.6s ease}
@keyframes cardIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.login-brand{display:flex;align-items:center;gap:10px;margin-bottom:32px}
.brand-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--burgundy),var(--burgundy-light));color:var(--white);border-radius:12px;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:20px;font-weight:700}
.brand-label{font-family:var(--font-body);font-size:14px;font-weight:600;color:var(--text-muted);letter-spacing:0.04em;text-transform:uppercase}
.login-card h1{font-family:var(--font-display);font-size:28px;font-weight:600;line-height:1.25;color:var(--text);margin-bottom:12px}
.login-card>p{font-size:15px;color:var(--text-light);line-height:1.6;margin-bottom:28px}
.input-wrap{display:flex;gap:8px}
.input-wrap input{flex:1;padding:14px 18px;border:1.5px solid var(--cream-dark);border-radius:var(--radius-sm);font-size:16px;font-family:var(--font-body);outline:none;background:var(--cream);transition:border-color 0.2s,background 0.2s}
.input-wrap input:focus{border-color:var(--burgundy);background:var(--white)}
.input-wrap input::placeholder{color:var(--text-muted)}
.btn-submit{width:52px;height:52px;border:none;background:linear-gradient(135deg,var(--burgundy),var(--burgundy-light));color:var(--white);border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform 0.15s,box-shadow 0.15s;flex-shrink:0}
.btn-submit:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(107,21,39,0.3)}
.btn-submit:active{transform:translateY(0)}
.btn-submit:disabled{opacity:0.4;cursor:not-allowed;transform:none;box-shadow:none}
.login-message{margin-top:16px;padding:14px 16px;border-radius:var(--radius-sm);font-size:14px;line-height:1.5;display:none;animation:fadeIn 0.3s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
.login-message.success{display:block;background:#F0F9F0;color:#1B6B3A;border:1px solid #C8E6C8}
.login-message.error{display:block;background:#FDF2F2;color:#8B1A1A;border:1px solid #F0C8C8}
.login-footer{margin-top:32px;padding-top:20px;border-top:1px solid var(--cream-dark);text-align:center}
.login-footer p{font-size:12px;color:var(--text-muted);letter-spacing:0.02em}
.login-footer strong{color:var(--text-light);font-weight:600}
.page-chat{background:var(--cream);height:100dvh;overflow:hidden}
.chat-container{display:flex;flex-direction:column;height:100dvh;max-width:640px;margin:0 auto;background:var(--white);box-shadow:var(--shadow-lg)}
@media(max-width:640px){.chat-container{box-shadow:none}}
.chat-header{background:linear-gradient(135deg,var(--burgundy-dark),var(--burgundy));color:var(--white);padding:14px 20px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.header-left{display:flex;align-items:center;gap:12px}
.avatar{width:38px;height:38px;background:rgba(255,255,255,0.15);backdrop-filter:blur(8px);border:1.5px solid rgba(255,255,255,0.25);border-radius:12px;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:18px;font-weight:700}
.header-info h2{font-family:var(--font-body);font-size:15px;font-weight:600;margin-bottom:1px}
.header-status{font-size:11px;opacity:0.7;display:flex;align-items:center;gap:5px}
.header-status::before{content:'';width:6px;height:6px;background:#5BDA8B;border-radius:50%;display:inline-block}
.chat-counter{text-align:right}
.counter-num{display:block;font-size:20px;font-weight:700;font-family:var(--font-display);line-height:1}
.counter-label{font-size:10px;opacity:0.6;text-transform:uppercase;letter-spacing:0.06em}
.chat-messages{flex:1;overflow-y:auto;padding:20px 16px;display:flex;flex-direction:column;gap:6px;scroll-behavior:smooth}
.chat-messages::-webkit-scrollbar{width:4px}
.chat-messages::-webkit-scrollbar-thumb{background:var(--cream-dark);border-radius:4px}
.chat-welcome{text-align:center;padding:32px 16px 24px;animation:fadeIn 0.5s ease}
.welcome-avatar{width:56px;height:56px;background:linear-gradient(135deg,var(--burgundy),var(--burgundy-light));color:var(--white);border-radius:18px;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:26px;font-weight:700;margin:0 auto 16px}
.chat-welcome p{font-size:15px;color:var(--text-light);line-height:1.6;max-width:340px;margin:0 auto 20px}
.scenario-pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.pill{padding:8px 16px;border:1.5px solid var(--cream-dark);border-radius:20px;background:var(--white);font-family:var(--font-body);font-size:13px;font-weight:500;color:var(--text);cursor:pointer;transition:all 0.2s}
.pill:hover{border-color:var(--burgundy);color:var(--burgundy);background:rgba(107,21,39,0.03)}
.msg{max-width:82%;padding:12px 16px;font-size:15px;line-height:1.55;word-wrap:break-word;white-space:pre-wrap;animation:msgIn 0.25s ease}
@keyframes msgIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.msg.user{align-self:flex-end;background:linear-gradient(135deg,var(--burgundy),var(--burgundy-light));color:var(--white);border-radius:18px 18px 6px 18px;margin-left:40px}
.msg.assistant{align-self:flex-start;background:var(--cream);color:var(--text);border-radius:18px 18px 18px 6px;margin-right:40px;border:1px solid var(--border)}
.typing-indicator{align-self:flex-start;display:none;align-items:center;gap:10px;padding:4px 0;animation:fadeIn 0.3s}
.typing-indicator.visible{display:flex}
.typing-avatar{width:28px;height:28px;background:linear-gradient(135deg,var(--burgundy),var(--burgundy-light));color:var(--white);border-radius:10px;display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:13px;font-weight:700;flex-shrink:0}
.typing-dots{display:flex;gap:4px;padding:10px 14px;background:var(--cream);border-radius:14px;border:1px solid var(--border)}
.typing-dots span{width:7px;height:7px;background:var(--text-muted);border-radius:50%;animation:pulse 1.4s ease-in-out infinite}
.typing-dots span:nth-child(2){animation-delay:0.15s}
.typing-dots span:nth-child(3){animation-delay:0.3s}
@keyframes pulse{0%,80%,100%{opacity:0.25;transform:scale(0.85)}40%{opacity:1;transform:scale(1)}}
.chat-input-wrap{flex-shrink:0;padding:12px 16px 16px;background:var(--white);border-top:1px solid var(--border)}
.chat-input{display:flex;align-items:flex-end;gap:8px;background:var(--cream);border-radius:var(--radius);padding:6px 6px 6px 16px;border:1.5px solid var(--cream-dark);transition:border-color 0.2s}
.chat-input:focus-within{border-color:var(--burgundy)}
.chat-input textarea{flex:1;padding:10px 0;border:none;background:transparent;font-size:15px;font-family:var(--font-body);resize:none;max-height:120px;outline:none;color:var(--text);line-height:1.4}
.chat-input textarea::placeholder{color:var(--text-muted)}
.chat-input button{width:40px;height:40px;border:none;background:linear-gradient(135deg,var(--burgundy),var(--burgundy-light));color:var(--white);border-radius:12px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform 0.15s,opacity 0.15s;flex-shrink:0}
.chat-input button:hover:not(:disabled){transform:scale(1.05)}
.chat-input button:disabled{opacity:0.3;cursor:default}
.limit-overlay{position:fixed;inset:0;background:rgba(45,33,39,0.7);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:24px;z-index:100;animation:fadeIn 0.3s}
.limit-overlay.visible{display:flex}
.limit-card{background:var(--white);border-radius:24px;padding:48px 36px;max-width:400px;text-align:center;box-shadow:var(--shadow-lg)}
.limit-icon{margin-bottom:20px;color:var(--burgundy)}
.limit-icon svg{stroke:var(--burgundy)}
.limit-card h2{font-family:var(--font-display);font-size:22px;color:var(--text);margin-bottom:12px}
.limit-card p{font-size:14px;color:var(--text-light);line-height:1.6;margin-bottom:28px}
.btn-primary{display:inline-block;width:100%;padding:16px;background:linear-gradient(135deg,var(--burgundy),var(--burgundy-light));color:var(--white);border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;font-family:var(--font-body);cursor:pointer;text-decoration:none;text-align:center;transition:transform 0.15s,box-shadow 0.15s}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(107,21,39,0.3)}