@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--nb-bg: #03040b;--nb-bg-secondary: #0a0b16;--nb-glass: rgba(13, 15, 28, .75);--nb-glass-border: rgba(255, 255, 255, .08);--nb-surface: rgba(255, 255, 255, .04);--nb-surface-hover: rgba(255, 255, 255, .08);--nb-border: rgba(255, 255, 255, .06);--nb-border-hover: rgba(255, 255, 255, .12);--nb-text: #ffffff;--nb-text-secondary: rgba(255, 255, 255, .6);--nb-text-muted: rgba(255, 255, 255, .35);--nb-accent: #007aff;--nb-accent-hover: #3395ff;--nb-accent-bg: rgba(0, 122, 255, .15);--nb-glow: 0 0 20px rgba(0, 122, 255, .4);--nb-green: #30d158;--nb-green-bg: rgba(48, 209, 88, .12);--nb-purple: #bf5af2;--nb-purple-bg: rgba(191, 90, 242, .12);--nb-orange: #ff9f0a;--nb-orange-bg: rgba(255, 159, 10, .12);--nb-red: #ff453a;--nb-red-bg: rgba(255, 69, 58, .1);--gradient-bg: radial-gradient(circle at 0% 0%, rgba(0, 122, 255, .1) 0%, rgba(3, 4, 11, 0) 50%), radial-gradient(circle at 100% 0%, rgba(191, 90, 242, .08) 0%, rgba(3, 4, 11, 0) 50%), radial-gradient(circle at 50% 100%, rgba(0, 122, 255, .12) 0%, rgba(3, 4, 11, 0) 50%);--gradient-logo: linear-gradient(135deg, #007aff, #5856d6, #00c7be);--sp-xs: 4px;--sp-sm: 8px;--sp-md: 12px;--sp-lg: 16px;--sp-xl: 24px;--sp-xxl: 32px;--sp-3xl: 48px;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 24px;--radius-xl: 32px;--radius-pill: 100px;--shadow-sm: 0 4px 12px rgba(0, 0, 0, .4);--shadow-md: 0 12px 32px rgba(0, 0, 0, .5);--shadow-lg: 0 24px 64px rgba(0, 0, 0, .6);--font: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif}[data-theme=dark]{--nb-bg: #000000;--nb-bg-secondary: #05050a}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:var(--font);background:var(--nb-bg);background-image:var(--gradient-bg);background-attachment:fixed;color:var(--nb-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}input,textarea{font-family:inherit}::selection{background:var(--nb-accent);color:#fff}.app-layout{display:flex;height:100vh;overflow:hidden;max-width:1600px;margin:0 auto;box-shadow:0 0 100px #0000000d}.sidebar{width:260px;min-width:260px;background:var(--nb-glass);backdrop-filter:blur(40px);-webkit-backdrop-filter:blur(40px);border-right:1px solid var(--nb-glass-border);display:flex;flex-direction:column;padding:var(--sp-lg);gap:var(--sp-xs);z-index:10}.sidebar-logo{display:flex;align-items:center;gap:var(--sp-md);padding:var(--sp-md) var(--sp-sm);margin-bottom:var(--sp-xl)}.sidebar-logo .logo-icon{width:44px;height:44px;border-radius:var(--radius-md);background:#000;display:flex;align-items:center;justify-content:center;font-size:22px;box-shadow:var(--shadow-md);transition:all .4s cubic-bezier(.16,1,.3,1);position:relative;overflow:hidden}.sidebar-logo:hover .logo-icon{background:var(--gradient-logo);transform:rotate(-5deg) scale(1.05);box-shadow:0 8px 20px #af52de40}.sidebar-logo h1{font-size:17px;font-weight:700;color:var(--nb-text);letter-spacing:-.3px}.sidebar-logo p{font-size:11px;color:var(--nb-text-muted);margin-top:1px}.nav-item{display:flex;align-items:center;gap:var(--sp-md);padding:12px var(--sp-md);border-radius:var(--radius-md);font-size:14px;font-weight:500;color:var(--nb-text-secondary);border:none;background:transparent;width:100%;text-align:left;transition:all .2s ease}.nav-item:hover{background:#ffffff0d;color:var(--nb-text);transform:translate(4px)}.nav-item.active{background:var(--nb-accent-bg);color:var(--nb-text);border:1px solid rgba(0,122,255,.2);box-shadow:0 4px 15px #007aff1a;font-weight:600;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nav-item .nav-subtitle{font-size:11px;color:var(--nb-text-muted);font-weight:400}.nav-item-content{display:flex;flex-direction:column;gap:1px}.sidebar-footer{margin-top:auto;padding-top:var(--sp-lg);border-top:1px solid rgba(255,255,255,.4)}.stats-bar{display:flex;gap:var(--sp-lg);padding:var(--sp-md);background:#ffffff08;border-radius:var(--radius-md);font-size:12px;box-shadow:0 4px 12px #0003;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid var(--nb-glass-border)}.stat-item{display:flex;flex-direction:column;align-items:center;gap:2px}.stat-value{font-weight:700;color:var(--nb-text)}.stat-label{font-size:10px;color:var(--nb-text-muted)}.main-content{flex:1;overflow-y:auto;padding:var(--sp-xxl);position:relative;z-index:1}.card{background:var(--nb-glass);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);border:1px solid var(--nb-glass-border);border-radius:var(--radius-lg);padding:var(--sp-xl);transition:all .4s cubic-bezier(.16,1,.3,1);box-shadow:var(--shadow-md)}.card:hover{border-color:#ffffff26;box-shadow:0 12px 40px #0006;transform:translateY(-4px)}.card.interactive{cursor:pointer}.card.interactive:hover{transform:translateY(-4px) scale(1.01);box-shadow:var(--shadow-lg)}.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:var(--sp-xxl)}.page-header h1{font-size:36px;font-weight:800;letter-spacing:-1px;color:var(--nb-text);background:linear-gradient(135deg,#fff,#ffffffb3);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.page-header p{font-size:16px;color:var(--nb-text-secondary);margin-top:8px;font-weight:400;max-width:600px;line-height:1.5}.btn{display:inline-flex;align-items:center;gap:var(--sp-sm);padding:12px var(--sp-xl);border-radius:var(--radius-pill);font-size:14px;font-weight:600;border:none;transition:all .25s ease;letter-spacing:-.1px}.btn-primary{background:var(--nb-accent);color:#fff;box-shadow:0 4px 15px #007aff4d}.btn-primary:hover{background:var(--nb-accent-hover);box-shadow:var(--nb-glow);transform:translateY(-2px)}.btn-secondary{background:#ffffff0d;color:var(--nb-text);border:1px solid var(--nb-glass-border);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.btn-secondary:hover{background:#ffffff1a;border-color:#fff3;transform:translateY(-1px)}.btn-danger{background:var(--nb-red-bg);color:var(--nb-red)}.btn-danger:hover{background:#ff3b3033}.btn-icon{width:38px;height:38px;padding:0;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#ffffff80;border:1px solid transparent;color:var(--nb-text-secondary);transition:all .2s ease}.btn-icon:hover{background:#fff;color:var(--nb-text);box-shadow:0 2px 8px #0000000d;transform:scale(1.05)}.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:var(--sp-lg)}.topic-card{display:flex;flex-direction:column;align-items:center;gap:var(--sp-md);padding:var(--sp-xl);background:#ffffff08;border:1px solid var(--nb-glass-border);border-radius:var(--radius-lg);cursor:pointer;transition:all .4s cubic-bezier(.16,1,.3,1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.topic-card:hover{transform:translateY(-8px) scale(1.02);background:#ffffff0f;box-shadow:0 20px 40px #0006,0 0 20px #007aff1a;border-color:#fff3}.topic-icon{width:64px;height:64px;border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:30px;transition:transform .3s cubic-bezier(.34,1.56,.64,1);box-shadow:0 4px 10px #0000000d}.topic-card:hover .topic-icon{transform:scale(1.1) rotate(5deg)}.topic-card h3{font-size:15px;font-weight:600;text-align:center;color:var(--nb-text);letter-spacing:-.2px}.chat-container{display:flex;flex-direction:column;height:calc(100vh - 64px);background:var(--nb-glass);border-radius:var(--radius-xl);border:1px solid var(--nb-glass-border);-webkit-backdrop-filter:blur(40px);backdrop-filter:blur(40px);overflow:hidden;box-shadow:var(--shadow-lg)}.chat-header{display:flex;align-items:center;gap:var(--sp-md);padding:var(--sp-md) var(--sp-xl);border-bottom:1px solid var(--nb-glass-border);background:#ffffff08;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.chat-header .back-btn{width:36px;height:36px;border-radius:50%;background:#ffffff0d;border:1px solid var(--nb-glass-border);color:var(--nb-text-secondary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.chat-header .back-btn:hover{background:#ffffff1a;color:var(--nb-text);transform:translate(-2px)}.chat-status{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--nb-green);font-weight:600}.chat-status .dot{width:6px;height:6px;border-radius:50%;background:var(--nb-green);box-shadow:0 0 8px var(--nb-green);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.1)}}.chat-messages{flex:1;overflow-y:auto;padding:var(--sp-xl);display:flex;flex-direction:column;gap:var(--sp-lg);scroll-behavior:smooth}.message{display:flex;gap:var(--sp-md);max-width:80%;animation:messageIn .4s cubic-bezier(.2,.9,.3,1) forwards;opacity:0;transform:translateY(10px)}@keyframes messageIn{to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:34px;height:34px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;box-shadow:var(--shadow-sm)}.message.assistant .message-avatar{background:var(--nb-surface);color:var(--nb-accent);border:1px solid var(--nb-glass-border)}.message-bubble{padding:14px 18px;border-radius:20px;font-size:15px;line-height:1.6;position:relative;box-shadow:0 4px 12px #0000001a}.message.assistant .message-bubble{background:#ffffff0f;color:var(--nb-text);border-bottom-left-radius:4px;border:1px solid var(--nb-glass-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.message.user .message-bubble{background:linear-gradient(135deg,#007aff,#0051a8);color:#fff;border-bottom-right-radius:4px;box-shadow:0 4px 15px #007aff40}.message-time{font-size:11px;color:var(--nb-text-muted);margin-top:4px;font-weight:500;opacity:.8}.typing-indicator{display:flex;gap:5px;padding:12px 16px;background:#ffffff0d;width:fit-content;border-radius:18px 18px 18px 4px;border:1px solid var(--nb-glass-border)}.typing-dot{width:6px;height:6px;border-radius:50%;background:var(--nb-text-secondary);animation:typing 1.4s infinite ease-in-out}.typing-dot:nth-child(1){animation-delay:0s}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,to{transform:translateY(0);opacity:.4}50%{transform:translateY(-4px);opacity:1}}.chat-input-area{padding:var(--sp-lg);background:#fff9;border-top:1px solid rgba(255,255,255,.5);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.suggestions{display:flex;gap:var(--sp-sm);padding:var(--sp-sm) 0;padding-bottom:var(--sp-md);overflow-x:auto;scrollbar-width:none}.suggestions::-webkit-scrollbar{display:none}.suggestion-chip{padding:8px 16px;background:#fff9;border:1px solid rgba(255,255,255,.4);border-radius:var(--radius-pill);font-size:13px;font-weight:500;color:var(--nb-text);cursor:pointer;white-space:nowrap;transition:all .2s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.suggestion-chip:hover{background:#fff;border-color:var(--nb-accent);color:var(--nb-accent);transform:translateY(-1px);box-shadow:0 4px 12px #0000000d}.chat-input{display:flex;align-items:center;gap:var(--sp-md);padding:8px var(--sp-md) 8px var(--sp-lg);background:#fff;border:1px solid rgba(0,0,0,.1);border-radius:30px;transition:all .2s;box-shadow:0 2px 10px #00000008}.chat-input:focus-within{border-color:var(--nb-accent);box-shadow:0 4px 15px #0071e326;transform:translateY(-1px)}.chat-input input{flex:1;background:none;border:none;outline:none;color:var(--nb-text);font-size:15px;padding:8px 0}.chat-input input::placeholder{color:var(--nb-text-muted)}.send-btn{width:40px;height:40px;border-radius:50%;background:var(--nb-text);border:none;color:#fff;display:flex;align-items:center;justify-content:center;transition:all .2s cubic-bezier(.2,.8,.2,1);box-shadow:0 4px 10px #0003}.send-btn:hover{transform:scale(1.1);background:#000;box-shadow:0 6px 15px #0000004d}.send-btn:disabled{opacity:.3;cursor:not-allowed;transform:none;box-shadow:none}.conversations-section h2{font-size:20px;font-weight:700;margin-bottom:var(--sp-md);display:flex;align-items:center;gap:var(--sp-sm);letter-spacing:-.3px}.conversation-badge{font-size:12px;font-weight:600;color:var(--nb-text);background:var(--nb-surface);padding:2px 10px;border-radius:var(--radius-pill)}.conversation-row{display:flex;align-items:center;gap:var(--sp-md);padding:var(--sp-md) var(--sp-lg);border-radius:var(--radius-md);cursor:pointer;transition:all .2s;border:1px solid transparent}.conversation-row:hover{background:#ffffff0f;border-color:#ffffff26;transform:translate(4px)}.conversation-row .conv-icon{width:44px;height:44px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:20px}.conversation-row .conv-info{flex:1;min-width:0}.conversation-row .conv-title{font-size:14px;font-weight:600;color:var(--nb-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-row .conv-meta{font-size:12px;color:var(--nb-text-muted);margin-top:2px}.resume-btn{font-size:12px;font-weight:600;color:var(--nb-accent);background:var(--nb-accent-bg);padding:6px var(--sp-md);border-radius:var(--radius-pill);border:none;display:flex;align-items:center;gap:var(--sp-xs);transition:all .2s}.resume-btn:hover{background:#007aff40;box-shadow:var(--nb-glow)}.live-start{display:flex;flex-direction:column;align-items:center;gap:var(--sp-xxl);padding:var(--sp-3xl) 0}.mic-button{width:150px;height:150px;border-radius:50%;border:none;background:linear-gradient(135deg,#007aff,#0051a8);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .4s cubic-bezier(.16,1,.3,1);position:relative;box-shadow:0 10px 40px #007aff4d}.mic-button:hover{transform:scale(1.06);box-shadow:0 12px 50px #0003}.mic-button:active{transform:scale(.98)}.mic-button .inner{width:140px;height:140px;border-radius:50%;display:flex;align-items:center;justify-content:center}.mic-button svg{width:48px;height:48px;color:#fff}.how-it-works{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-lg);width:100%}.step-card{text-align:center;padding:var(--sp-xxl) var(--sp-xl);background:#ffffff05;border:1px solid var(--nb-glass-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.step-card .step-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto var(--sp-lg);position:relative}.step-card .step-number{position:absolute;top:-6px;right:-6px;width:20px;height:20px;border-radius:50%;font-size:11px;font-weight:700;color:#fff;display:flex;align-items:center;justify-content:center}.step-card h3{font-size:15px;font-weight:700;margin-bottom:6px;color:var(--nb-text);letter-spacing:-.2px}.step-card p{font-size:13px;color:var(--nb-text-secondary);line-height:1.5}.audio-visualizer{display:flex;align-items:center;justify-content:center;gap:3px;height:60px;padding:var(--sp-lg)}.audio-bar{width:4px;border-radius:2px;background:linear-gradient(to top,var(--nb-green),var(--nb-accent));transition:height .15s ease}.transcript-panel{max-height:200px;overflow-y:auto}.tip-card{display:flex;align-items:flex-start;gap:var(--sp-md);padding:var(--sp-md);background:var(--nb-surface);border-radius:var(--radius-sm);cursor:pointer;transition:all .2s;margin-bottom:6px}.tip-card:hover{background:var(--nb-surface-hover)}.tip-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:14px}.tip-card h4{font-size:14px;font-weight:600;color:var(--nb-text)}.tip-card p{font-size:13px;color:var(--nb-text-secondary);margin-top:var(--sp-xs);line-height:1.5}.speaker-segment{padding:8px 12px;border-left:3px solid var(--nb-border);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:var(--nb-surface);transition:all .2s}.speaker-segment:hover{background:var(--nb-surface-hover)}.speaker-label{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.3px}.dynamic-island{position:fixed;top:16px;left:50%;transform:translate(-50%);z-index:9999;background:var(--nb-text);border-radius:var(--radius-pill);padding:10px 20px;display:flex;align-items:center;gap:var(--sp-md);min-width:380px;box-shadow:0 8px 40px #0003;animation:islandIn .5s cubic-bezier(.34,1.56,.64,1)}@keyframes islandIn{0%{opacity:0;transform:translate(-50%) translateY(-20px) scale(.8)}to{opacity:1;transform:translate(-50%) translateY(0) scale(1)}}.island-bars{display:flex;align-items:center;gap:2px;height:20px}.island-bar{width:3px;border-radius:2px;background:var(--nb-green)!important;transition:height .15s ease}.island-text{font-size:13px;font-weight:600;color:#fff;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.island-stop{width:26px;height:26px;border-radius:50%;background:var(--nb-red);border:none;color:#fff;display:flex;align-items:center;justify-content:center;font-size:10px;cursor:pointer;transition:all .2s}.island-stop:hover{transform:scale(1.1)}.section-title{font-size:20px;font-weight:700;margin-bottom:var(--sp-lg);color:var(--nb-text);letter-spacing:-.3px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#fff3}.mobile-menu-toggle{display:none;position:fixed;top:14px;left:14px;z-index:1000;width:40px;height:40px;border-radius:50%;background:var(--nb-bg);border:1px solid var(--nb-border);color:var(--nb-text);align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-md)}@media(max-width:1024px){.sidebar{width:200px;min-width:200px}.topic-grid{grid-template-columns:repeat(3,1fr)}.how-it-works{grid-template-columns:repeat(2,1fr)}.message{max-width:82%}}@media(max-width:768px){.mobile-menu-toggle{display:flex}.sidebar{position:fixed;left:-300px;top:0;height:100vh;z-index:999;width:280px;background:var(--nb-bg);transition:left .3s cubic-bezier(.4,0,.2,1);box-shadow:none}.sidebar.open{left:0;box-shadow:8px 0 30px #00000014}.main-content{padding:var(--sp-lg);padding-top:64px}.page-header{flex-direction:column;gap:var(--sp-md)}.page-header h1{font-size:24px}.topic-grid{grid-template-columns:repeat(2,1fr);gap:var(--sp-sm)}.topic-card{padding:var(--sp-xl) var(--sp-lg)}.topic-icon{width:48px;height:48px;font-size:22px}.how-it-works{grid-template-columns:1fr 1fr;gap:var(--sp-sm)}.message{max-width:88%}.chat-header{padding:var(--sp-md)}.suggestions{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch}.conversation-row{flex-wrap:wrap;gap:var(--sp-sm)}.resume-btn{margin-left:auto}.dynamic-island{min-width:auto;width:calc(100% - 32px);left:16px;transform:none}@keyframes islandIn{0%{opacity:0;transform:translateY(-20px) scale(.8)}to{opacity:1;transform:translateY(0) scale(1)}}.live-start{padding:var(--sp-xxl) 0}.mic-button{width:130px;height:130px}.mic-button .inner{width:120px;height:120px}.mic-button svg{width:40px;height:40px}}@media(max-width:480px){.main-content{padding:var(--sp-md);padding-top:60px}.page-header h1{font-size:22px}.topic-grid{grid-template-columns:1fr 1fr}.how-it-works{grid-template-columns:1fr}.chat-input input{font-size:16px}.conversation-row{padding:var(--sp-sm)}.btn-primary{width:100%;justify-content:center}.step-card{padding:var(--sp-xl) var(--sp-lg)}}.admin-page{height:100vh;display:flex;flex-direction:column;background:var(--nb-bg);background-image:var(--gradient-bg);color:var(--nb-text);overflow:hidden}.admin-header{height:64px;display:flex;justify-content:space-between;align-items:center;padding:0 32px;border-bottom:1px solid var(--nb-glass-border);background:var(--nb-glass);-webkit-backdrop-filter:blur(40px);backdrop-filter:blur(40px);z-index:10}.admin-header h1{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:700;letter-spacing:-.3px}.admin-main{flex:1;display:grid;grid-template-columns:480px 1fr;overflow:hidden}.admin-editor{padding:32px;overflow-y:auto;border-right:1px solid var(--nb-glass-border);background:#0003;display:flex;flex-direction:column;gap:32px}.gem-field{display:flex;flex-direction:column;gap:10px}.gem-field label{font-size:13px;font-weight:600;color:var(--nb-text-secondary);display:flex;align-items:center;gap:6px;text-transform:uppercase;letter-spacing:.5px}.gem-field input,.gem-field textarea{width:100%;padding:14px 16px;border-radius:var(--radius-md);border:1px solid var(--nb-glass-border);background:#ffffff08;color:var(--nb-text);font-family:inherit;font-size:14px;line-height:1.6;transition:all .3s cubic-bezier(.16,1,.3,1)}.gem-field input:focus,.gem-field textarea:focus{outline:none;border-color:var(--nb-accent);background:#ffffff0f;box-shadow:0 0 15px #007aff26}.gem-field textarea{min-height:100px;resize:vertical}.instructions-area{min-height:320px!important}.knowledge-card{background:#ffffff08;border:1px dashed var(--nb-glass-border);border-radius:var(--radius-md);padding:20px;display:flex;align-items:center;gap:14px;cursor:pointer;transition:all .3s}.knowledge-card:hover{border-style:solid;border-color:var(--nb-accent);background:#ffffff0f;box-shadow:0 8px 24px #0003}.admin-preview{display:flex;flex-direction:column;background:transparent;position:relative}.preview-header{padding:40px;text-align:center;border-bottom:1px solid var(--nb-glass-border)}.preview-content{flex:1;overflow-y:auto;padding:40px;display:flex;flex-direction:column;gap:20px}.preview-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--nb-text-muted);max-width:400px;text-align:center;margin:auto}.preview-placeholder .icon-circle{width:80px;height:80px;border-radius:50%;background:var(--nb-surface);display:flex;align-items:center;justify-content:center;color:var(--nb-accent);box-shadow:0 0 30px #007aff1a}.preview-footer{padding:32px 40px;width:100%;max-width:900px;margin:0 auto}.preview-input-wrapper{background:#ffffff0d;border:1px solid var(--nb-glass-border);border-radius:30px;padding:8px 16px 8px 24px;display:flex;align-items:center;gap:12px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.preview-input-wrapper input{flex:1;background:transparent;border:none;padding:12px 0;font-size:15px;color:var(--nb-text)}.preview-input-wrapper input:focus{outline:none}.admin-tabs{display:flex;gap:4px;padding:6px;background:#ffffff0a;border-radius:var(--radius-md);margin-top:16px}.tab-btn{flex:1;padding:10px 14px;border-radius:10px;border:none;background:transparent;color:var(--nb-text-secondary);font-size:13px;font-weight:600;cursor:pointer;transition:all .2s}.tab-btn.active{background:var(--nb-accent);color:#fff;box-shadow:0 4px 12px #007aff4d}@media(max-width:1200px){.admin-main{grid-template-columns:1fr}.admin-preview{display:none}}