@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--bg-base: #0A0E1A;--bg-deep: #07111E;--bg-raised: #131A2E;--bg-overlay: #1F2A44;--accent: #E8174A;--accent-h: #FF2D63;--accent-deep: #C4185A;--accent-soft: rgba(232, 23, 74, .12);--accent-glow: rgba(232, 23, 74, .3);--info: #00D4FF;--viz: #7B2CBF;--text: #E8ECF4;--text-light: #A0AEC0;--text-muted: #5A6B86;--border: rgba(160, 174, 192, .12);--border-strong: rgba(160, 174, 192, .22);--success: #10B981;--success-bg: rgba(16, 185, 129, .12);--error: #EF4444;--error-bg: rgba(239, 68, 68, .12);--sidebar-w: 264px;--header-h: 56px;--content-w: 760px;--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--radius-xl: 20px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .25);--shadow-sm: 0 2px 6px rgba(0, 0, 0, .3);--shadow-md: 0 6px 20px rgba(0, 0, 0, .35);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .45);--shadow-xl: 0 24px 64px rgba(0, 0, 0, .55);--space-xs: 4px;--space-sm: 8px;--space-md: 12px;--space-lg: 16px;--space-xl: 24px;--space-2xl: 32px;--space-3xl: 48px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--text-xs: .6875rem;--text-sm: .8125rem;--text-base: .875rem;--text-lg: .9375rem;--text-xl: 1rem;--text-2xl: 1.5rem;--text-3xl: 2.125rem;--lh-tight: 1.25;--lh-normal: 1.5;--lh-relaxed: 1.7;--ease: cubic-bezier(.4, 0, .2, 1);--duration-fast: .15s;--duration: .2s;--white: #ffffff;--dark: var(--bg-base);--dark-alt: var(--bg-raised)}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);font-size:14px;color:var(--text);background:var(--bg-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{cursor:pointer;border:none;background:none;font-family:inherit;color:inherit}input,textarea,select{font-family:inherit;font-size:14px;color:var(--text)}a{text-decoration:none;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-overlay);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}#casper-app{display:flex;height:100vh;height:100dvh;overflow:hidden}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-base);min-width:0}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg-base);color:var(--text);display:flex;flex-direction:column;overflow:hidden;transition:width .3s var(--ease),min-width .3s var(--ease),transform .3s var(--ease);border-right:1px solid var(--border)}.sidebar.collapsed{width:0;min-width:0}.sidebar-backdrop{display:none}.sidebar-logo{display:flex;align-items:center;gap:12px;padding:20px 20px 18px;border-bottom:1px solid var(--border)}.logo-ghost{width:28px;height:auto;transition:transform var(--duration) var(--ease)}.sidebar-logo:hover .logo-ghost{transform:translateY(-2px)}.logo-text{font-weight:800;font-size:15px;letter-spacing:.12em;color:var(--text)}.sidebar-nav{padding:14px 10px;display:flex;flex-direction:column;gap:2px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius-sm);color:var(--text-light);font-size:13px;font-weight:500;transition:all var(--duration) var(--ease)}.nav-item:hover{background:var(--bg-raised);color:var(--text)}.nav-item.active{background:var(--accent-soft);color:var(--accent-h);box-shadow:inset 2px 0 0 var(--accent)}.sidebar-conversations{flex:1;overflow-y:auto;padding:8px 10px;border-top:1px solid var(--border)}.conv-header{display:flex;justify-content:space-between;align-items:center;padding:10px 8px 8px;font-size:10px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em}.btn-new{width:24px;height:24px;border-radius:var(--radius-sm);background:var(--bg-raised);color:var(--text);font-size:16px;display:flex;align-items:center;justify-content:center;transition:all var(--duration) var(--ease)}.btn-new:hover{background:var(--accent);color:#fff}.conv-list{list-style:none;display:flex;flex-direction:column;gap:1px}.conv-item{display:flex;align-items:center;padding:8px 10px;border-radius:var(--radius-sm);cursor:pointer;color:var(--text-light);font-size:12.5px;transition:all var(--duration) var(--ease)}.conv-item:hover{background:var(--bg-raised);color:var(--text)}.conv-item.active{background:var(--accent-soft);color:var(--accent-h);font-weight:500}.conv-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.conv-pin-mark{font-size:10px;margin-right:5px;flex-shrink:0;opacity:.8}.conv-actions{display:flex;gap:1px;flex-shrink:0;opacity:0;transition:opacity var(--duration) var(--ease)}.conv-item:hover .conv-actions,.conv-item:focus-within .conv-actions{opacity:1}.conv-action{padding:2px 5px;border-radius:4px;color:var(--text-muted);font-size:12px;line-height:1.4;transition:all var(--duration) var(--ease)}.conv-action:hover{color:var(--text);background:var(--bg-overlay)}.conv-action-danger{font-size:14px}.conv-action-danger:hover{color:var(--error);background:var(--error-bg)}.conv-rename-input{flex:1;min-width:0;background:var(--bg-deep);color:var(--text);border:1px solid var(--accent);border-radius:4px;font-size:12.5px;padding:3px 7px;outline:none}.sidebar-footer{padding:14px 16px;border-top:1px solid var(--border)}.user-pill{display:flex;align-items:center;gap:10px;margin-bottom:8px}.avatar{width:30px;height:30px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff}.user-name{font-size:12.5px;font-weight:500;color:var(--text-light)}.btn-logout{font-size:12px;font-weight:500;color:var(--text-muted);padding:4px 0;transition:color var(--duration)}.btn-logout:hover{color:var(--text)}.app-header{height:var(--header-h);min-height:var(--header-h);display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-lg);gap:var(--space-lg);background:var(--bg-base);border-bottom:1px solid var(--border)}.header-lead{display:flex;align-items:center;gap:var(--space-md);min-width:0}.header-menu-btn{display:flex;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:9px;border-radius:var(--radius-sm);cursor:pointer;background:none;border:none;flex-shrink:0;transition:background var(--duration) var(--ease)}.header-menu-btn:hover{background:var(--bg-raised)}.header-menu-btn span{display:block;height:2px;width:100%;background:var(--text-muted);border-radius:2px;transition:background var(--duration)}.header-menu-btn:hover span{background:var(--text)}.header-brand{display:flex;align-items:center;gap:var(--space-sm);flex-shrink:0}.header-mark{height:24px;width:auto}.header-wordmark{font-size:var(--text-lg);font-weight:700;letter-spacing:-.01em;color:var(--text)}.header-sep{width:1px;height:20px;background:var(--border-strong);flex-shrink:0}.header-title{font-size:var(--text-base);font-weight:600;color:var(--text-light);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.header-trail{display:flex;align-items:center;gap:var(--space-md);flex-shrink:0}.header-status{display:inline-flex;align-items:center}.header-status .status-dot{width:8px;height:8px;border-radius:50%;background:var(--text-muted);transition:background var(--duration)}.header-status.ok .status-dot{background:var(--success);box-shadow:0 0 6px #10b98180}.header-status.error .status-dot{background:var(--error);box-shadow:0 0 6px #ef444480}.header-avatar{width:30px;height:30px;border-radius:50%;background:var(--accent);color:#fff;font-size:var(--text-xs);font-weight:700;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.header-username{font-size:var(--text-sm);font-weight:500;color:var(--text-light)}.user-menu{position:relative}.user-menu-trigger{display:inline-flex;align-items:center;gap:var(--space-sm);padding:4px 8px 4px 4px;border-radius:999px;cursor:pointer;background:none;border:1px solid transparent;transition:background var(--duration) var(--ease),border-color var(--duration)}.user-menu-trigger:hover{background:var(--bg-raised);border-color:var(--border)}.user-menu-chevron{color:var(--text-muted);transition:transform var(--duration) var(--ease)}.user-menu-chevron.open{transform:rotate(180deg)}.user-menu-panel{position:absolute;top:calc(100% + 8px);right:0;z-index:1200;width:264px;padding:var(--space-sm);background:var(--bg-raised);border:1px solid var(--border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.user-menu-id{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm)}.header-avatar.lg{width:40px;height:40px;font-size:var(--text-sm)}.user-menu-id-text{display:flex;flex-direction:column;min-width:0}.user-menu-name{font-size:var(--text-base);font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-menu-email{font-size:var(--text-xs);color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-menu-status{display:flex;align-items:center;gap:var(--space-sm);padding:6px var(--space-sm);font-size:var(--text-xs);color:var(--text-muted)}.user-menu-status .status-dot{width:7px;height:7px;border-radius:50%;background:var(--text-muted)}.user-menu-status.ok .status-dot{background:var(--success)}.user-menu-status.error .status-dot{background:var(--error)}.user-menu-sep{height:1px;background:var(--border);margin:var(--space-xs) 0}.user-menu-item{display:flex;align-items:center;gap:var(--space-sm);width:100%;padding:10px var(--space-sm);border-radius:var(--radius-sm);font-size:var(--text-sm);font-weight:500;color:var(--text-light);cursor:pointer;background:none;border:none;text-align:left;transition:background var(--duration),color var(--duration)}.user-menu-item:hover{background:var(--bg-overlay);color:var(--text)}.user-menu-item.danger:hover{background:var(--error-bg);color:var(--error)}.menu-enter-active,.menu-leave-active{transition:opacity var(--duration-fast) var(--ease),transform var(--duration-fast) var(--ease)}.menu-enter-from,.menu-leave-to{opacity:0;transform:translateY(-6px) scale(.98);transform-origin:top right}.chat-view{flex:1;display:flex;flex-direction:column;overflow:hidden}.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px 40px;gap:8px;animation:fadeInUp .5s var(--ease);position:relative;overflow:hidden auto}.welcome:before{content:"";position:absolute;top:-140px;left:50%;transform:translate(-50%);width:640px;height:420px;background:radial-gradient(ellipse at center,var(--accent-soft) 0%,transparent 70%);pointer-events:none}.welcome-title{font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--text);position:relative;z-index:1}.welcome-sub{font-size:15px;font-weight:400;color:var(--text-light);margin-bottom:24px;position:relative;z-index:1}.welcome-stats{display:flex;align-items:center;gap:0;background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius-lg);padding:14px 28px;margin-bottom:12px;position:relative;z-index:1;animation:fadeIn .4s var(--ease) .2s 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24px;display:flex;flex-direction:column;gap:20px}.message{display:flex;animation:fadeIn .25s var(--ease);width:100%;max-width:var(--content-w);margin-inline:auto}.message.user{justify-content:flex-end}.msg-bubble{max-width:78%;padding:13px 17px;border-radius:var(--radius-lg);font-size:14px;line-height:1.7}.message.user .msg-bubble{background:var(--accent);color:#fff;border-radius:var(--radius-lg) var(--radius-lg) 4px var(--radius-lg)}.message.assistant .msg-bubble{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius-lg) var(--radius-lg) var(--radius-lg) 4px;max-width:92%}.msg-bubble.error{border-color:var(--error);background:var(--error-bg)}.msg-content p{margin-bottom:10px}.msg-content p:last-child{margin-bottom:0}.msg-content ul,.msg-content ol{margin:8px 0;padding-left:20px}.msg-content li{margin-bottom:4px}.msg-content strong{font-weight:600}.msg-content code{background:var(--bg-deep);padding:2px 6px;border-radius:4px;font-size:12.5px;font-family:var(--font-mono)}.msg-content pre{background:var(--bg-deep);color:var(--text);border:1px solid var(--border);padding:14px 16px;border-radius:var(--radius);overflow-x:auto;margin:10px 0;font-size:12.5px;line-height:1.6;font-family:var(--font-mono)}.msg-content h1,.msg-content h2,.msg-content h3{font-weight:600;margin:16px 0 8px}.msg-content h1{font-size:18px}.msg-content h2{font-size:16px}.msg-content h3{font-size:14px}.msg-content blockquote{border-left:3px solid var(--accent);padding-left:12px;margin:8px 0;color:var(--text-light)}.sources{margin-top:12px;padding-top:12px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;gap:6px;align-items:center}.sources-label{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.source-badge{font-size:11px;font-weight:500;padding:3px 10px;background:var(--bg-overlay);border-radius:12px;color:var(--text-light);cursor:pointer;transition:all var(--duration) var(--ease);-webkit-user-select:none;user-select:none}.source-badge:hover,.source-badge.active{background:var(--accent-soft);color:var(--accent-h)}.source-preview{margin-top:10px;background:var(--bg-deep);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;animation:fadeIn .15s var(--ease)}.source-preview-header{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:var(--bg-overlay);border-bottom:1px solid var(--border)}.source-preview-title{font-size:11px;font-weight:600;color:var(--text)}.source-preview-close{font-size:16px;color:var(--text-muted);padding:0 4px;line-height:1;border-radius:4px}.source-preview-close:hover{color:var(--text);background:var(--bg-raised)}.source-preview-body{padding:10px 12px;font-size:12px;line-height:1.6;color:var(--text-light);max-height:160px;overflow-y:auto;white-space:pre-wrap}.msg-meta{margin-top:8px;font-size:11px;font-weight:500;color:var(--text-muted)}.btn-retry{margin-top:10px;padding:7px 16px;border:1px solid var(--error);border-radius:var(--radius-sm);color:var(--error);font-size:12.5px;font-weight:600;transition:all var(--duration) var(--ease)}.btn-retry:hover:not(:disabled){background:var(--error);color:#fff}.btn-retry:disabled{opacity:.5;cursor:not-allowed}.msg-actions{display:flex;gap:4px;margin-top:8px;padding-top:6px;opacity:0;transition:opacity var(--duration) var(--ease)}.msg-bubble:hover .msg-actions,.msg-bubble:focus-within .msg-actions{opacity:1}.msg-action-btn{padding:4px 9px;border-radius:var(--radius-sm);font-size:13px;line-height:1;color:var(--text-muted);transition:all var(--duration) var(--ease)}.msg-action-btn:hover{background:var(--bg-overlay);color:var(--text)}.msg-action-btn.active{background:var(--accent-soft);color:var(--accent-h)}.msg-action-btn.copied{color:var(--success)}.thinking-bubble{min-width:220px}.thinking-status{font-size:13px;font-weight:500;color:var(--text-light);padding:4px 0;display:flex;align-items:center;gap:8px}.thinking-status:before{content:"";width:14px;height:14px;border-radius:50%;border:2px solid var(--bg-overlay);border-top-color:var(--accent);animation:spin .8s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.typing{display:flex;gap:5px;padding:12px 4px;align-items:center}.typing span{width:7px;height:7px;border-radius:50%;background:var(--accent);opacity:.6;animation:bounce 1.2s ease infinite}.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-6px)}}.input-bar{padding:14px 24px 18px;background:var(--bg-base);border-top:1px solid var(--border);display:flex;align-items:flex-end;gap:12px;justify-content:center}.input-bar-inner{display:flex;align-items:flex-end;gap:12px;width:100%;max-width:var(--content-w)}.input-bar textarea{flex:1;border:1.5px solid var(--border);border-radius:var(--radius);padding:11px 16px;resize:none;outline:none;line-height:1.5;min-height:44px;background:var(--bg-raised);color:var(--text);transition:border-color var(--duration) var(--ease),box-shadow var(--duration) var(--ease)}.input-bar textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.input-bar textarea::placeholder{color:var(--text-muted)}.btn-send{width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all var(--duration) var(--ease)}.btn-send:disabled{background:var(--bg-overlay);color:var(--text-muted);cursor:not-allowed}.btn-send:not(:disabled):hover{background:var(--accent-h);transform:scale(1.05)}.btn-send:not(:disabled):active{transform:scale(.95)}.field label{display:block;font-size:12px;font-weight:600;color:var(--text-light);margin-bottom:6px}.field input,.field textarea{width:100%;border:1.5px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;outline:none;background:var(--bg-raised);transition:border-color var(--duration) var(--ease),box-shadow var(--duration) var(--ease)}.field input:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.field textarea{resize:vertical}.btn-tpl-delete{font-size:12px;font-weight:500;color:var(--text-muted);padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);flex-shrink:0;transition:all var(--duration) var(--ease)}.btn-tpl-delete:hover{border-color:var(--error);color:var(--error);background:var(--error-bg)}.btn-generate{padding:12px 32px;background:var(--accent);color:#fff;border-radius:var(--radius);font-size:14px;font-weight:600;transition:all var(--duration) var(--ease)}.btn-generate:disabled{opacity:.5;cursor:not-allowed}.btn-generate:not(:disabled):hover{background:var(--accent-h);transform:translateY(-1px)}.admin-view{flex:1;padding:36px 40px;overflow-y:auto;max-width:840px;animation:fadeInUp .4s var(--ease)}.admin-section{margin-bottom:40px}.admin-section h2{font-size:16px;font-weight:700;margin-bottom:18px;color:var(--text)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.stat-card{background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px 26px;transition:all var(--duration) 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var(--ease)}.modal-title{font-size:15px;font-weight:700;margin-bottom:8px}.modal-message{font-size:13px;color:var(--text-light);line-height:1.6;margin-bottom:20px}.modal-actions{display:flex;justify-content:flex-end;gap:10px}.modal-btn{padding:9px 18px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;transition:all var(--duration) var(--ease)}.modal-btn.cancel{color:var(--text-light);border:1px solid var(--border)}.modal-btn.cancel:hover{color:var(--text);background:var(--bg-overlay)}.modal-btn.confirm{background:var(--accent);color:#fff}.modal-btn.confirm:hover{background:var(--accent-h)}.modal-btn.danger{background:var(--error);color:#fff}.modal-btn.danger:hover{filter:brightness(1.1)}.tour-modal{text-align:center;max-width:440px}.tour-icon{font-size:40px;margin-bottom:12px}.tour-modal 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768px){.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:1000;width:var(--sidebar-w);min-width:var(--sidebar-w);transform:translate(0);box-shadow:var(--shadow-lg)}.sidebar.collapsed{width:var(--sidebar-w);min-width:var(--sidebar-w);transform:translate(-100%);box-shadow:none}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:999;background:#07111e99;animation:fadeIn .2s var(--ease)}.app-header{padding:0 var(--space-md);gap:var(--space-sm)}.header-username,.header-wordmark{display:none}.welcome{padding:32px 16px 24px}.welcome-title{font-size:26px}.welcome-stats{flex-wrap:wrap;gap:12px;padding:14px 18px}.welcome-stat-divider{display:none}.suggestions{grid-template-columns:1fr;gap:8px}.messages{padding:20px 14px;gap:16px}.msg-bubble{max-width:88%}.message.assistant .msg-bubble{max-width:100%}.input-bar{padding:10px 12px 14px}.msg-actions{opacity:1}.recipe-grid{grid-template-columns:1fr}.studio-view{padding:24px 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