@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap";:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}:root{--background-color: #12101a;--panel-background: rgba(255, 255, 255, .05);--border-color: rgba(255, 255, 255, .1);--text-color: #e0e0e0;--primary-color: #8a4fff;--input-bg: #1f1c2b}body{margin:0;font-family:Inter,sans-serif;background-color:var(--background-color);color:var(--text-color);background-image:radial-gradient(circle at 10% 20%,rgba(138,79,255,.15),transparent 30%),radial-gradient(circle at 90% 80%,rgba(67,102,255,.15),transparent 40%);min-height:100vh;width:100vw}.main-container{display:flex;flex-direction:column;height:100vh;width:100vw;padding:2rem;box-sizing:border-box;position:relative}.header{display:flex;justify-content:space-between;align-items:center;width:100%;margin-bottom:2rem}.header h1{font-size:1.5rem;margin:0;color:#fff}.user-profile{display:flex;align-items:center;gap:12px}.user-profile span{font-weight:500}.user-avatar{width:36px;height:36px;border-radius:50%;background-color:var(--primary-color);display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff}.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;flex-grow:1;overflow:hidden}.panel{background:var(--panel-background);border:1px solid var(--border-color);border-radius:24px;padding:2rem;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;flex-direction:column;overflow-y:auto}.panel h2{font-size:1.1rem;font-weight:500;color:#aaa;margin-top:0}.panel p.description{font-size:1.75rem;font-weight:500;line-height:1.3;color:#fff;margin-top:.5rem}.chat-messages{flex-grow:1;overflow-y:auto;padding-right:10px;display:flex;flex-direction:column}.message{margin-bottom:1rem;padding:12px 16px;border-radius:12px;max-width:80%;line-height:1.5}.message.user{background:var(--input-bg);align-self:flex-end;margin-left:auto}.message.assistant{background-color:#8a4fff33;align-self:flex-start}.chat-input-area{display:flex;margin-top:1.5rem;flex-shrink:0}.chat-input-area input{flex-grow:1;background:var(--input-bg);border:1px solid var(--border-color);border-radius:12px;padding:12px 16px;color:var(--text-color);font-size:1rem}.chat-input-area button{background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;margin-left:10px}.unknot-textarea{flex-grow:1;width:100%;background:var(--input-bg);border:1px solid var(--border-color);border-radius:12px;padding:16px;color:var(--text-color);font-size:1rem;resize:none;box-sizing:border-box}.unknot-button{background:var(--primary-color);border:none;border-radius:12px;padding:14px;color:#fff;font-size:1rem;font-weight:500;cursor:pointer;margin-top:1rem;width:100%}.recommendation-area{background:#8a4fff1a;border-top:1px solid var(--primary-color);padding:1rem;margin-top:1rem;position:relative;flex-shrink:0}.recommendation-area h4{margin:0 0 .75rem;font-size:.9rem;color:silver}.recommendation-link{display:block;background:var(--input-bg);padding:.75rem;border-radius:8px;margin-bottom:.5rem;color:var(--text-color);text-decoration:none;transition:background .2s}.recommendation-link:hover{background:#ffffff1a}.recommendation-link strong{text-transform:capitalize;color:var(--primary-color);margin-right:8px}.close-recommendations{position:absolute;top:8px;right:8px;background:none;border:none;color:#fff;font-size:1.2rem;cursor:pointer;opacity:.7}.music-toggle-button{position:fixed;top:1rem;left:50%;transform:translate(-50%);background:#8a4fffcc;border:none;border-radius:50%;width:60px;height:60px;display:flex;justify-content:center;align-items:center;font-size:2rem;cursor:pointer;box-shadow:0 0 15px #8a4fff80;transition:all .3s ease-in-out;color:#fff;overflow:hidden;z-index:200}.music-toggle-button.playing{width:80px;height:80px;border-radius:12px;box-shadow:0 0 25px #8a4fffcc}.music-toggle-button .sound-waves{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center;width:100%;height:100%;opacity:0;transition:opacity .3s ease-in-out}.music-toggle-button.playing .sound-waves{opacity:1}.sound-waves .wave{width:4px;height:20px;background-color:#ffffffb3;margin:0 2px;border-radius:2px;animation:waveAnimation 1.2s infinite ease-in-out}.sound-waves .wave:nth-child(1){animation-delay:0s}.sound-waves .wave:nth-child(2){animation-delay:.2s}.sound-waves .wave:nth-child(3){animation-delay:.4s}@keyframes waveAnimation{0%,to{height:20px;transform:translateY(0)}50%{height:35px;transform:translateY(-7px)}}.page-content-container{flex-grow:1;display:flex;flex-direction:column;overflow-y:auto}@media (max-width: 768px){.main-container{padding:1rem;height:auto;min-height:100vh}.header{flex-direction:column;gap:1rem;margin-bottom:1.5rem;text-align:center}.content-grid{grid-template-columns:1fr;gap:1.5rem}.panel{padding:1.5rem}.panel p.description{font-size:1.5rem}.message{max-width:90%}.music-toggle-button{top:auto;left:1rem;bottom:1rem;transform:none;width:50px;height:50px;font-size:1.5rem}.music-toggle-button.playing{width:65px;height:65px}}@media (max-width: 480px){.main-container{padding:.75rem}.panel{padding:1rem}.panel p.description{font-size:1.3rem}h1{font-size:1.25rem}}:root{--home-bg: #0e0f1b;--home-text: #f2f3f7;--home-muted: #b3b5c3;--home-card-bg: rgba(27, 29, 51, .8);--home-border: rgba(255, 255, 255, .15);--home-glow: 142, 68, 173}.home-wrapper{position:fixed;inset:0;width:100vw;height:100vh;background-color:var(--home-bg);overflow-y:auto;display:flex;flex-direction:column;align-items:center}.home-bg-video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1}.home-scrim{position:absolute;inset:0;z-index:2;pointer-events:none;background:radial-gradient(1200px 800px at 20% -10%,rgba(34,28,59,.45),transparent 60%),linear-gradient(180deg,#080a128c,#080a12bf)}.home-content{position:relative;z-index:3;width:100%;max-width:1200px;padding:3rem 1.5rem;box-sizing:border-box;text-align:center}.brand-logo{height:150px;margin-bottom:1rem;opacity:.9}.hero-title{color:var(--home-text);font-size:clamp(2.5rem,5vw,3.5rem);font-weight:800;margin:0 0 .5rem}.hero-sub{color:var(--home-muted);font-size:clamp(1rem,2vw,1.15rem);margin:0 auto 3rem;max-width:600px}.cards-container{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.card{background:var(--home-card-bg);border:1px solid var(--home-border);border-radius:18px;padding:1.5rem;min-height:240px;display:flex;flex-direction:column;justify-content:space-between;text-align:left;transition:all .25s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 10px 35px #0006;cursor:pointer}.card:hover{transform:translateY(-8px);border-color:#ffffff4d;box-shadow:0 20px 50px rgba(var(--home-glow),.25)}.card-title{font-size:1.5rem;font-weight:700;color:var(--home-text);margin-bottom:.5rem}.card-desc{color:var(--home-muted);font-size:1rem;line-height:1.6}.card-icon{font-size:2rem;align-self:flex-end;margin-top:1rem}@media (max-width: 1000px){.cards-container{grid-template-columns:1fr 1fr}}@media (max-width: 640px){.home-content{padding:2rem 1rem}.cards-container{grid-template-columns:1fr}}.chat-page-container{display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;overflow:hidden;min-height:100vh;width:100vw;box-sizing:border-box}.chat-bg-video{position:fixed;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:0;background:url(/background-fallback.jpg) center center / cover no-repeat;pointer-events:none}.chat-bg-scrim{position:fixed;top:0;left:0;width:100%;height:100%;background:#0000004d;z-index:1;pointer-events:none}.corner-logo{position:absolute;bottom:1rem;left:1rem;width:70px;opacity:.9;z-index:10}.back-button{position:absolute;top:1rem;left:2rem;background:#ffffff1a;border:1px solid var(--border-color);border-radius:8px;padding:.75rem 1.25rem;color:#fff;font-size:.9rem;cursor:pointer;z-index:10;transition:background .3s ease}.back-button:hover{background:#fff3}.chat-panel{width:100%;max-width:800px;height:100%;background:var(--panel-background);border:1px solid var(--border-color);border-radius:24px;padding:4.5rem 2rem 2rem;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);display:flex;flex-direction:column;box-sizing:border-box;z-index:2}.chat-messages{flex-grow:1;overflow-y:auto;margin-bottom:1rem}.message.user{text-align:right;background:#ffffff1a;margin:.5rem 0;padding:.75rem;border-radius:12px}.message.assistant{text-align:left;background:#0000004d;margin:.5rem 0;padding:.75rem;border-radius:12px}.chat-input-area{display:flex;gap:.5rem;margin-top:auto}.chat-input-area input{flex-grow:1;padding:.75rem;border-radius:12px;border:1px solid var(--border-color);background:#ffffff1a;color:#fff}.chat-input-area button{background:#ffffff26;border:1px solid var(--border-color);border-radius:12px;padding:.5rem 1rem;cursor:pointer;transition:background .2s ease}.chat-input-area button:hover{background:#ffffff4d}.recommendation-area{background:#ffffff14;border:1px solid var(--border-color);border-radius:12px;padding:1rem;margin-bottom:1rem;position:relative}.recommendation-link{display:block;margin:.25rem 0;color:#fff;text-decoration:underline}.close-recommendations{position:absolute;top:.5rem;right:.5rem;background:transparent;border:none;color:#fff;font-size:1rem;cursor:pointer}@media (max-width: 768px){.chat-panel{width:100%;height:100%;border-radius:0;border:none;padding:4.5rem 1rem 1rem;backdrop-filter:none;-webkit-backdrop-filter:none}.chat-input-area{flex-wrap:wrap;gap:.5rem}.chat-input-area input{flex-grow:1;min-width:150px}}.unknotter-page-container{position:relative;min-height:100vh;width:100vw;overflow-x:hidden;padding:0;box-sizing:border-box;background:#080a13}.unknotter-bg-video{position:fixed;inset:0;z-index:0;width:100vw;height:100vh;object-fit:cover;background:#151522}.unknotter-bg-scrim{position:fixed;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,#00000059,#0000008c 80%,#000000b3)}.unknotter-content{width:100%;max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;gap:36px;padding:100px 24px 36px}.unknotter-input-panel,.unknotter-output-panel{background:#161724d1;border:2px solid rgba(255,255,255,.32);border-radius:18px;width:45%;padding:30px 22px 28px;box-shadow:0 12px 36px #0006;display:flex;flex-direction:column;min-height:370px;max-width:470px;position:relative}.unknotter-input-panel h2{margin:0 0 8px;color:#fff;font-weight:900;font-size:2rem;text-shadow:0 4px 18px rgba(0,0,0,.35);letter-spacing:.3px}.unknotter-input-panel .description{margin-bottom:17px;color:#d5d6e3;font-size:15px;letter-spacing:.2px}.unknot-textarea{border:2px solid rgba(255,255,255,.18);background:#00000030;border-radius:15px;min-height:120px;resize:vertical;color:#fff;font-size:1rem;padding:14px 16px;margin-bottom:18px;font-family:inherit;transition:border-color .22s,box-shadow .22s}.unknot-textarea:focus{outline:none;border-color:#a882ff;box-shadow:0 0 0 3px #a882ff26;background:#0000003b}.unknot-button{background:linear-gradient(90deg,#7d45ec,#a882ff);color:#fff;border:none;border-radius:15px;font-size:1.09rem;font-weight:800;padding:13px 0;margin-top:4px;cursor:pointer;letter-spacing:.1px;box-shadow:0 5px 18px #a882ff1c;transition:box-shadow .17s,transform .08s,background .22s}.unknot-button:disabled{background:#533982;opacity:.72;cursor:not-allowed}.unknot-button:hover:not(:disabled){box-shadow:0 12px 32px #a882ff30;transform:translateY(-2px) scale(1.03)}.unknotter-output-panel{justify-content:flex-start;align-items:flex-start;position:relative}.placeholder-text{color:#d5d6e3;font-size:1.09rem;font-weight:500;margin-top:25px;letter-spacing:.02em}.chart-wrapper{min-height:230px;display:flex;align-items:center;justify-content:center}.mermaid-container{width:100%;min-width:180px}.mermaid-rendered-svg{max-width:100%;border-radius:12px;box-shadow:0 7px 24px #320f5c38}.mermaid-error{background:#ff1e3c12;color:#fe9ea6;font-weight:600;border-radius:7px;padding:16px;margin:12px 0}.back-button{position:fixed;top:26px;left:34px;color:#fff;background:#38366154;border-radius:15px;padding:11px 17px;border:none;font-size:1rem;z-index:3;cursor:pointer;font-weight:600;transition:background .22s}.back-button:hover{background:#a882ff40}@media (max-width: 900px){.unknotter-content{flex-direction:column;gap:24px;padding:84px 6vw 32px}.unknotter-input-panel,.unknotter-output-panel{max-width:100vw;width:97%;min-height:250px}.back-button{left:11px;top:19px}}@media (max-width: 550px){.unknotter-bg-video,.unknotter-bg-scrim{display:none}.unknotter-content{padding:0 2vw}.unknotter-input-panel{padding:16px 6px 14px}.panel-title{font-size:1.33rem}}.corner-logo{position:fixed;bottom:16px;left:16px;width:58px;height:auto;z-index:3}@media (max-width: 600px){.unknotter-content{flex-direction:column;align-items:center;gap:16px;padding:70px 16px}.unknotter-input-panel,.unknotter-output-panel{width:100%;max-width:95%}.corner-logo{width:40px;bottom:10px;left:10px}.header-icon{font-size:1.6rem;top:10px}}:root{--sim-bg: #0a0b14;--sim-text: #f0f2f5;--sim-muted: #c1c3d1;--sim-panel-bg: rgba(18, 20, 32, .75);--sim-border: rgba(255, 255, 255, .2);--sim-accent: #8e44ad;--sim-accent-glow: rgba(142, 68, 173, .35)}.simulation-wrapper{position:fixed;inset:0;width:100vw;height:100vh;background-color:var(--sim-bg);overflow:hidden;display:grid;place-items:center}.simulation-bg-video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1;filter:brightness(.8) contrast(1.1)}.simulation-bg-overlay{position:absolute;inset:0;z-index:2;pointer-events:none;background:radial-gradient(ellipse at 50% 50%,transparent 40%,rgba(0,0,0,.7) 80%),linear-gradient(180deg,#0003,#00000080)}.simulation-start-screen{position:relative;z-index:3;display:grid;place-items:center;text-align:center;padding:2rem;animation:fadeIn .8s ease-out}.simulation-start-content{max-width:600px;background:var(--sim-panel-bg);border:1px solid var(--sim-border);border-radius:18px;padding:2.5rem 3rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 15px 40px #00000080}.simulation-start-content h1{font-size:2.5rem;font-weight:800;color:var(--sim-text);margin:0 0 .75rem}.simulation-start-content p{font-size:1.1rem;color:var(--sim-muted);line-height:1.6;margin:0 0 2rem}.start-simulation-button{width:100%;padding:1rem;font-size:1.2rem;font-weight:700;color:#fff;background:linear-gradient(90deg,#7d45ec,#a882ff);border:none;border-radius:12px;cursor:pointer;transition:all .2s ease}.start-simulation-button:hover{transform:translateY(-3px);box-shadow:0 10px 30px var(--sim-accent-glow)}.simulation-back-button{background:none;border:none;color:var(--sim-muted);font-size:.9rem;cursor:pointer;margin-top:1rem;transition:color .2s ease}.simulation-back-button:hover{color:var(--sim-text)}.simulation-container{position:relative;z-index:3;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;box-sizing:border-box;animation:fadeIn .8s ease-out}.simulation-container .simulation-back-button{position:absolute;top:2rem;left:2rem}.simulation-content{width:100%;max-width:700px;text-align:center}.simulation-story-text{color:var(--sim-text);font-size:1.5rem;font-weight:500;line-height:1.7;min-height:100px;margin:0 0 2.5rem;animation:textFadeIn 1s ease-out}.simulation-choices{display:flex;flex-direction:column;gap:1rem;align-items:center}.simulation-choice-button{width:100%;max-width:500px;padding:1rem;font-size:1.1rem;font-weight:600;color:var(--sim-text);background:var(--sim-panel-bg);border:1px solid var(--sim-border);border-radius:12px;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:all .2s ease}.simulation-choice-button:hover{background:#ffffff1a;border-color:#fff;transform:scale(1.02)}.simulation-loading{color:var(--sim-muted);font-size:1.2rem;animation:pulse 1.5s infinite ease-in-out}@media (max-width: 768px){.simulation-start-content{padding:2rem 1.5rem;width:90vw}.simulation-start-content h1{font-size:2rem}.simulation-story-text{font-size:1.25rem}.simulation-container{padding:1rem;justify-content:center}.simulation-container .simulation-back-button{top:1rem;left:1rem}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes textFadeIn{0%{opacity:0}to{opacity:1}}@keyframes pulse{0%,to{opacity:.6}50%{opacity:1}}