:root{--color-bg: #080817;--color-bg-secondary: rgba(17, 25, 40, .45);--color-surface: rgba(255, 255, 255, .07);--color-text: #f4f6fb;--color-text-muted: #b4bbd1;--color-accent: #8f73ff;--color-accent-strong: #7361ff;--color-success: #38ef7d;--color-border: rgba(255, 255, 255, .08);--shadow-soft: 0 24px 60px -32px rgba(143, 115, 255, .65);--shadow-card: 0 16px 40px -20px rgba(17, 24, 39, .65);--radius-lg: 28px;--radius-md: 18px;--radius-sm: 12px;--transition-base: .2s ease;--transition-strong: .3s cubic-bezier(.33, 1, .68, 1)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%}body{font-family:Inter,SF Pro Display,Segoe UI,sans-serif;background:radial-gradient(circle at top left,rgba(115,97,255,.25),transparent 45%),radial-gradient(circle at bottom right,rgba(152,70,255,.35),transparent 55%),var(--color-bg);color:var(--color-text);min-height:100vh;-webkit-font-smoothing:antialiased}.app{display:flex;flex-direction:column;height:100vh}.header{background:linear-gradient(145deg,#080817eb,#080817a6);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--color-border);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;z-index:100}.header-left{display:flex;align-items:center}.logo-link{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:inherit;font-weight:600;transition:opacity var(--transition-base)}.logo-link:hover{opacity:.8}.logo-icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#8f73ff66,#8f73ffbf);box-shadow:var(--shadow-soft);font-size:1.5rem}.header h1{font-size:1.4rem;color:#fff}.controls{display:flex;gap:1rem}.btn{padding:.65rem 1.5rem;border:none;border-radius:var(--radius-sm);font-size:.95rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);display:inline-flex;align-items:center;gap:.5rem;white-space:nowrap}.btn-primary{background:linear-gradient(135deg,var(--color-accent),var(--color-accent-strong));color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px #8f73ff66}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:#ffffff1f;border-color:#ffffff26}.btn-success{background:linear-gradient(135deg,var(--color-success),#2ac471);color:#fff}.btn-success:hover{transform:translateY(-2px);box-shadow:0 8px 24px #38ef7d66}.btn-danger{background:linear-gradient(135deg,#ff5252,#ff1744);color:#fff}.btn-danger:hover{transform:translateY(-2px)}.btn-block{width:100%;justify-content:center}.main-content{display:flex;flex:1;gap:2rem;padding:2rem;overflow:hidden}.sidebar{display:flex;flex-direction:column;gap:1.5rem;width:380px;background:var(--color-surface);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.5rem;overflow-y:auto}.tabs{display:flex;gap:.5rem;border-bottom:1px solid var(--color-border)}.tab-btn{flex:1;padding:.75rem 1rem;background:transparent;color:var(--color-text-muted);border:none;border-bottom:2px solid transparent;cursor:pointer;font-weight:600;transition:all var(--transition-base)}.tab-btn.active{color:var(--color-accent);border-bottom-color:var(--color-accent)}.tab-btn:hover{color:var(--color-text)}.tab-content{display:none;flex-direction:column;gap:1rem}.tab-content.active{display:flex}.tab-content h2{font-size:1.1rem;margin-bottom:.5rem}.templates-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.template-card{background:#ffffff0d;border:1px solid var(--color-border);border-radius:var(--radius-md);padding:1rem;cursor:pointer;transition:all var(--transition-base);text-align:center}.template-card:hover{background:#8f73ff26;border-color:var(--color-accent);transform:translateY(-2px)}.template-icon{font-size:2rem;margin-bottom:.5rem}.template-name{font-size:.9rem;font-weight:600;color:var(--color-text)}.template-desc{font-size:.75rem;color:var(--color-text-muted);margin-top:.25rem}.messages-container{display:flex;flex-direction:column;gap:.75rem;max-height:350px;overflow-y:auto}.message-item{background:#ffffff0d;padding:.875rem;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-base);border:1px solid transparent;position:relative}.message-item:hover{background:#ffffff14}.message-item.selected{border-color:var(--color-accent);background:#8f73ff26}.message-preview{font-size:.9rem;margin-bottom:.5rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--color-text)}.message-meta{font-size:.8rem;color:var(--color-text-muted);display:flex;justify-content:space-between;align-items:center}.delete-message{background:linear-gradient(135deg,#ff5252,#ff1744);color:#fff;border:none;border-radius:4px;padding:.3rem .6rem;font-size:.75rem;cursor:pointer;opacity:0;transition:opacity var(--transition-base)}.message-item:hover .delete-message{opacity:1}.settings-panel{border-top:1px solid var(--color-border);padding-top:1.5rem}.settings-panel h2{font-size:1.1rem;margin-bottom:1rem}.settings-container{display:flex;flex-direction:column;gap:1.25rem}.no-selection{text-align:center;color:var(--color-text-muted);font-style:italic;padding:1rem 0}.setting-group{display:flex;flex-direction:column;gap:.5rem}.setting-group label{display:block;font-weight:600;font-size:.9rem;color:var(--color-text)}.setting-group input,.setting-group textarea,.setting-group select{width:100%;padding:.65rem;background:#ffffff0d;border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);font-size:.9rem;transition:all var(--transition-base);font-family:inherit}.setting-group input::placeholder,.setting-group textarea::placeholder{color:var(--color-text-muted)}.setting-group input:focus,.setting-group textarea:focus,.setting-group select:focus{outline:none;border-color:var(--color-accent);background:#8f73ff1a}.setting-group textarea{resize:vertical;min-height:80px}.setting-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.preview-panel{flex:1;background:var(--color-surface);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:1.5rem;display:flex;flex-direction:column;overflow:hidden}.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.preview-header h2{font-size:1.2rem}.preview-stats{display:flex;gap:1rem}.stat{font-size:.9rem;color:var(--color-text-muted)}.chat-container{flex:1;background:linear-gradient(180deg,#0a0e27,#1a1a2e);border-radius:var(--radius-md);overflow:hidden;display:flex;flex-direction:column;box-shadow:0 20px 60px #0006}.chat-header{background:linear-gradient(135deg,#8f73ff26,#9846ff26);border-bottom:1px solid var(--color-border);color:var(--color-text);padding:1rem;display:flex;align-items:center;gap:1rem}.chat-info{display:flex;align-items:center;gap:1rem}.chat-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--color-accent),var(--color-accent-strong));display:flex;align-items:center;justify-content:center;font-size:1.3rem;box-shadow:0 4px 12px #8f73ff4d}.chat-details{display:flex;flex-direction:column}.chat-name{font-weight:600;font-size:1rem}.chat-status{font-size:.8rem;color:var(--color-text-muted)}.chat-messages{flex:1;padding:1.5rem;overflow-y:auto;background:linear-gradient(180deg,#0a0e27,#1a1a2e);display:flex;flex-direction:column;gap:.75rem}.chat-message{display:flex;gap:.75rem;opacity:0;transform:translateY(20px) scale(.95);animation:messageSlideIn .5s cubic-bezier(.33,1,.68,1) forwards;max-width:80%}.chat-message.received{align-self:flex-start}.chat-message.sent{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--color-accent),var(--color-accent-strong));display:flex;align-items:center;justify-content:center;color:#fff;font-size:.9rem;flex-shrink:0;box-shadow:0 2px 8px #8f73ff4d}.message-content{padding:.85rem 1.25rem;border-radius:20px;position:relative;box-shadow:0 2px 8px #0000004d}.chat-message.received .message-content{background:#ffffff14;border:1px solid rgba(255,255,255,.1);color:var(--color-text)}.chat-message.sent .message-content{background:linear-gradient(135deg,var(--color-accent),var(--color-accent-strong));color:#fff}.message-text{font-size:.95rem;line-height:1.5;word-wrap:break-word}.message-time{font-size:.75rem;opacity:.7;margin-top:.35rem}@keyframes messageSlideIn{to{opacity:1;transform:translateY(0) scale(1)}}.typing-indicator{display:flex;gap:.35rem;padding:.75rem 1.25rem}.typing-dot{width:8px;height:8px;border-radius:50%;background:#8f73ff80;animation:typing 1.4s infinite ease-in-out}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1.2);opacity:1}}.export-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;justify-content:center;align-items:center}.export-modal.show{display:flex}.export-content{background:var(--color-bg-secondary);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--color-border);padding:2rem;border-radius:var(--radius-lg);max-width:500px;width:90%;color:var(--color-text)}.export-content h2{margin-bottom:1.5rem;font-size:1.3rem}.export-options{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.export-option{width:100%;padding:1rem;border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);background:transparent;text-align:left;color:inherit}.export-option:hover{border-color:var(--color-accent);background:#8f73ff26;transform:translate(4px)}.export-option h3{margin-bottom:.5rem;color:var(--color-text);font-size:1rem}.export-option p{font-size:.9rem;color:var(--color-text-muted)}.sidebar::-webkit-scrollbar,.messages-container::-webkit-scrollbar,.chat-messages::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-track,.messages-container::-webkit-scrollbar-track,.chat-messages::-webkit-scrollbar-track{background:transparent}.sidebar::-webkit-scrollbar-thumb,.messages-container::-webkit-scrollbar-thumb,.chat-messages::-webkit-scrollbar-thumb{background:#8f73ff4d;border-radius:3px}.sidebar::-webkit-scrollbar-thumb:hover,.messages-container::-webkit-scrollbar-thumb:hover,.chat-messages::-webkit-scrollbar-thumb:hover{background:#8f73ff80}@media(max-width:1024px){.main-content{flex-direction:column;gap:1.5rem}.sidebar{width:100%;max-height:40vh}.preview-panel{flex:1}.chat-message{max-width:85%}}@media(max-width:768px){.header{flex-direction:column;gap:1rem;padding:1rem}.controls{width:100%;justify-content:center}.main-content{padding:1rem;gap:1rem}.sidebar{width:100%;max-height:35vh}.templates-grid{grid-template-columns:repeat(3,1fr);gap:.75rem}.template-card{padding:.75rem}.template-name{font-size:.8rem}.template-desc{display:none}}