:root{--bg-color: #f2f4f7;--text-primary: #1a1a2e;--text-secondary: #6b7280;--accent-color: #5a7aa1;--card-bg: #f9fafb;--border-color: #e5e7eb;--font-family: "Helvetica Neue", Helvetica, "-apple-system", BlinkMacSystemFont, Arial, sans-serif;--max-width: 1200px;--spacing-base: 1rem}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;padding-top:80px}h1{font-size:clamp(3rem,8vw,6rem);font-weight:500;letter-spacing:-.04em;line-height:1.1;margin-bottom:var(--spacing-base);color:var(--text-primary)}h2{font-size:clamp(2rem,5vw,3rem);font-weight:500;letter-spacing:-.02em;margin-bottom:2rem;color:var(--text-primary)}p{font-size:1.125rem;color:var(--text-secondary)}.lang-btn{background:none;border:none;font-family:var(--font-family);font-size:.8rem;font-weight:600;letter-spacing:.05em;color:var(--text-secondary);cursor:pointer;padding:.1rem .2rem;transition:color .2s ease}.lang-btn.active,.lang-btn:hover{color:var(--text-primary)}.lang-divider{color:var(--border-color);font-size:.75rem;-webkit-user-select:none;user-select:none}.navbar{position:absolute;top:0;left:0;width:100%;height:80px;display:flex;justify-content:space-between;align-items:center;padding:0 5%;background:transparent;z-index:100}.logo{font-weight:600;font-size:1.5rem;width:40px;height:40px;background-color:transparent;color:var(--text-primary);border:1px solid var(--border-color);display:flex;align-items:center;justify-content:center;border-radius:50%}.nav-links a{text-decoration:none;color:var(--text-secondary);margin-left:2rem;font-weight:500;transition:color .3s ease}.nav-links a:hover{color:var(--text-primary)}.hero{height:100vh;width:100%;display:flex;align-items:center;justify-content:center;padding:0;margin:0;position:relative}.canvas-container{position:absolute;top:0;left:0;width:100%;height:100%;z-index:0}.ui-layer{position:relative;z-index:10;width:100%;max-width:800px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:0 5%;pointer-events:none}.chat-container{pointer-events:auto;width:100%;max-width:800px;display:flex;flex-direction:column;position:relative;margin-top:15rem}.chat-container{width:100%;max-width:800px;display:flex;flex-direction:column;position:relative;margin-top:-2rem}.chat-history{width:100%;max-height:400px;overflow-y:auto;padding:1.5rem 1rem;display:flex;flex-direction:column;gap:1.5rem;font-size:1.1rem;margin-bottom:1.5rem;mask-image:linear-gradient(to bottom,transparent,black 10%,black 90%,transparent);-webkit-mask-image:linear-gradient(to bottom,transparent,black 10%,black 90%,transparent)}.chat-history.hidden{display:none}.message{padding:1rem 1.5rem;border-radius:12px;max-width:85%;line-height:1.6;animation:fadeUp .3s ease forwards;font-weight:400}.system-msg{display:none}.user-msg{align-self:flex-end;background:#ffffffd9;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);color:var(--text-primary);border:1px solid rgba(0,0,0,.08);border-radius:20px 20px 4px;box-shadow:0 4px 15px #0000000d}.ai-msg{align-self:flex-start;background:#1e293bd9;backdrop-filter:blur(30px) saturate(150%);-webkit-backdrop-filter:blur(30px) saturate(150%);color:#f8fafc;border:1px solid rgba(255,255,255,.1);border-radius:20px 20px 20px 4px;box-shadow:0 8px 32px #00000026}.ai-msg p{margin-bottom:.8rem}.ai-msg p:last-child{margin-bottom:0}.ai-msg ul,.ai-msg ol{margin-left:1.5rem;margin-bottom:.8rem}.ai-msg li{margin-bottom:.4rem}.ai-msg strong{font-weight:600;color:var(--accent-color)}.ai-msg blockquote{border-left:3px solid var(--border-color);padding-left:1rem;margin:1rem 0;color:var(--text-secondary);font-style:italic}.typing-indicator:after{content:"■";animation:blink 1s step-end infinite;color:var(--accent-color);margin-left:4px}@keyframes blink{50%{opacity:0}}.suggested-questions{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center;margin-bottom:1.5rem;animation:fadeUp .4s ease forwards}.suggestion-btn{background:#ffffff40;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.45);border-radius:20px;padding:.55rem 1.1rem;font-family:var(--font-family);font-size:.9rem;color:var(--text-secondary);cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease;box-shadow:0 2px 8px #0000000a}.suggestion-btn:hover{background:#ffffff73;border-color:#f2f4f7e6;color:var(--text-primary)}.chat-input-wrapper{display:flex;width:100%;background:#ffffff47;backdrop-filter:blur(28px);-webkit-backdrop-filter:blur(28px);border:1px solid rgba(255,255,255,.5);border-radius:40px;overflow:hidden;box-shadow:0 10px 40px #0000000a,inset 0 0 0 1px #fff6;transition:border-color .3s ease,box-shadow .3s ease}.chat-input-wrapper:focus-within{border-color:#ffffffbf;box-shadow:0 10px 40px #00000014,inset 0 0 0 1px #ffffffb3}.chat-input-wrapper input{flex:1;padding:1.2rem 2rem;border:none;background:transparent;font-family:var(--font-family);font-size:1.125rem;color:var(--text-primary);outline:none}.chat-input-wrapper input::placeholder{color:#0006}.send-button{background:transparent;border:none;padding:0 1.8rem;color:var(--text-primary);cursor:pointer;transition:color .2s ease,transform .2s ease;display:flex;align-items:center;justify-content:center;opacity:.5}.send-button:hover{color:var(--accent-color);opacity:1;transform:translate(2px)}.chat-history::-webkit-scrollbar{width:6px}.chat-history::-webkit-scrollbar-track{background:transparent}.chat-history::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}.principles-section{padding:8rem 5%;max-width:800px;margin:0 auto}.list-container{display:flex;flex-direction:column}.list-item{border-bottom:1px solid rgba(255,255,255,.05);padding:2.5rem 0;display:flex;align-items:flex-start;gap:2rem;transition:transform .3s ease,background-color .3s ease;cursor:default}.list-item:hover{background-color:#ffffff05}.list-item:last-child{border-bottom:none}.item-index{font-size:.875rem;font-weight:600;color:var(--accent-color);min-width:40px;padding-top:.4rem}.item-content{flex:1}.item-title{font-size:1.5rem;font-weight:500;margin-bottom:.5rem;color:var(--text-primary);transition:color .3s ease}.list-item:hover .item-title{color:var(--accent-color)}.item-desc{font-size:1.125rem;color:var(--text-secondary)}footer{text-align:center;padding:4rem 5%;border-top:1px solid var(--border-color);color:var(--text-secondary);font-size:.875rem}@keyframes fadeUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.fade-in-element{opacity:0;transform:translateY(20px);transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}.fade-in-element.visible{opacity:1;transform:translateY(0)}.contact-strip{padding:4rem 5% 6rem;max-width:900px;margin:0 auto}.contact-inner{text-align:center}.contact-links{margin-top:1.5rem;display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}.contact-link{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.4rem;border-radius:999px;border:1px solid rgba(0,0,0,.08);background:#ffffffb3;color:var(--text-primary);text-decoration:none;font-weight:600;letter-spacing:.02em;box-shadow:0 8px 24px #00000014;transition:transform .2s ease,box-shadow .2s ease}.contact-link:hover{transform:translateY(-2px);box-shadow:0 12px 30px #0000001f}.demo-section{padding:6rem 5% 4rem;max-width:1100px;margin:0 auto}.demo-inner{text-align:center}.demo-cards{margin-top:2rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}.demo-card{background:#ffffffbf;border:1px solid rgba(0,0,0,.06);border-radius:18px;padding:1.5rem 1.6rem;text-align:left;box-shadow:0 12px 32px #00000014}.demo-title{font-size:1.1rem;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.demo-text{font-size:1rem;color:var(--text-secondary);margin-bottom:.5rem}.demo-text:last-child{margin-bottom:0}.demo-cta{margin-top:2rem}.demo-link{display:inline-flex;align-items:center;justify-content:center;padding:.8rem 1.6rem;border-radius:999px;border:1px solid rgba(0,0,0,.08);background:#ffffffb3;color:var(--text-primary);text-decoration:none;font-weight:600;letter-spacing:.02em;box-shadow:0 10px 26px #00000014;transition:transform .2s ease,box-shadow .2s ease}.demo-link:hover{transform:translateY(-2px);box-shadow:0 14px 32px #0000001f}.demo-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:6rem 5% 5rem}.demo-subtitle{font-size:1.1rem;color:var(--text-secondary);max-width:820px;margin:0 auto 2.5rem}.demo-back{display:inline-flex;align-items:center;gap:.4rem;text-decoration:none;color:var(--text-secondary);font-weight:600;margin-bottom:1.5rem}.demo-back:hover{color:var(--text-primary)}.top-nav{position:fixed;top:1.2rem;left:2rem;right:2rem;display:flex;align-items:center;justify-content:space-between;z-index:300;pointer-events:none}.nav-link{text-decoration:none;color:var(--text-secondary);font-weight:600;font-size:.9rem;padding:.35rem .7rem;border-radius:999px;background:#ffffff59;border:1px solid rgba(255,255,255,.6);box-shadow:0 6px 18px #0000000f;transition:color .2s ease,transform .2s ease,box-shadow .2s ease}.nav-link:hover{color:var(--text-primary);transform:translateY(-1px);box-shadow:0 10px 22px #00000014}.nav-link.active{color:var(--text-primary);background:#ffffffa6}.home-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:6rem 5% 5rem}.home-inner{text-align:center;max-width:900px}.home-subtitle{font-size:1.15rem;color:var(--text-secondary);margin:1rem auto 2.5rem}.home-cta{display:flex;align-items:center;justify-content:center;gap:1rem;flex-wrap:wrap}.demo-link.ghost{background:#ffffff59}.top-nav{position:fixed;top:0;left:0;right:0;z-index:300;background:#1a263aeb;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}.nav-bar{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 5%;gap:2rem}.nav-left,.nav-right{n display: flex;n align-items: center;n gap: 2rem;n margin-left: auto;n}.nav-link{text-decoration:none;color:#f2f4f7e6;font-weight:600;font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;transition:color .2s ease}.nav-link:hover,.nav-link.active{color:#f2f4f7}.nav-cta{text-decoration:none;color:#f2f4f7;font-weight:600;font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;display:inline-flex;align-items:center;gap:.6rem}.nav-cta:after{content:"?";font-size:1rem}.lang-toggle{n position: static;n top: auto;n right: auto;n background: transparent;n border: none;n box-shadow: none;n padding: 0;n margin-left: 1.5rem;n border-radius: 0;n}.lang-btn{color:#f2f4f7e6}.lang-btn.active,.lang-btn:hover{color:#f2f4f7}.lang-divider{color:#ffffff40}.nav-link{background:none;border:none;box-shadow:none;padding:0;border-radius:0}.nav-link.active{background:none}.nav-cta{background:none;border:none}.lang-toggle,.top-nav.chat-nav .lang-toggle{n position: static;n top: auto;n right: auto;n background: transparent;n border: none;n box-shadow: none;n padding: 0;n margin-left: 1.5rem;n border-radius: 0;n}.top-nav{pointer-events:auto}.nav-left{margin-left:0}.nav-right{margin-left:auto}.nav-bar{align-items:center}.nav-left{display:flex;align-items:center;gap:2rem;margin-left:0}.nav-right{display:flex;align-items:center;gap:2rem;margin-left:auto;flex-direction:row}.nav-link{display:inline-flex;align-items:center;gap:.4rem}.lang-toggle{margin-left:2rem}.nav-bar{gap:1.5rem}.nav-right,.lang-toggle{margin-left:auto}.nav-bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:1.5rem}.nav-left{justify-self:start}.nav-center{justify-self:center}.nav-right{justify-self:end;display:flex;align-items:center}.lang-toggle{margin-left:0}.nav-bar{position:relative}.top-nav .lang-toggle{position:absolute!important;right:5%;top:50%;transform:translateY(-50%)}.top-nav .nav-right{position:relative;width:100%;justify-content:center}.lang-float{position:fixed;top:1.1rem;right:5%;display:flex;align-items:center;gap:.4rem;background:#fff3;border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:.35rem .8rem;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:350}.nav-left{background:#ffffff2e;border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:.35rem;gap:.25rem;backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:0 10px 30px #0000001f}.nav-link{padding:.45rem 1.1rem;border-radius:999px;font-weight:600;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;color:#ffffffd9;transition:background .2s ease,color .2s ease,transform .2s ease}.top-nav{background:#1a263ad9}.nav-bar{display:flex;justify-content:center;align-items:center;padding:1.1rem 5%}.nav-left{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem;border-radius:999px;background:#fff3;border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);box-shadow:0 12px 30px #0000002e}.nav-link{padding:.45rem 1.1rem;border-radius:999px;font-weight:600;font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:#ffffffd9;background:transparent;transition:background .2s ease,color .2s ease,transform .2s ease}.nav-link:hover{background:#ffffff2e;color:#fff}.nav-link.active{background:#ffffff8c;color:#1a1a2e}:root{--bg-color: #eef3f9;--text-primary: #1c2a3a;--text-secondary: #516176;--accent-color: #4c6fa3;--card-bg: #f7faff;--border-color: #dbe6f3}.top-nav{background:transparent;border-bottom:none;box-shadow:none}.nav-left{background:#14243a1f;border:1px solid rgba(20,36,58,.18);box-shadow:0 10px 28px #1322361f}.nav-link{color:#14243abf}.nav-link.active{background:#ffffffd9;color:#1c2a3a}.lang-float{background:#14243a29;border:1px solid rgba(20,36,58,.25);box-shadow:0 10px 28px #1322362e}.lang-btn{color:#14243acc}.lang-btn.active,.lang-btn:hover{color:#1c2a3a}.lang-divider{color:#14243a73}.lang-float{display:flex!important;align-items:center!important;gap:.4rem!important;background:#fff6!important;backdrop-filter:blur(20px)!important;-webkit-backdrop-filter:blur(20px)!important;padding:.4rem .6rem!important;border-radius:999px!important;border:1px solid rgba(255,255,255,.7)!important;box-shadow:0 4px 15px #0003!important;z-index:9999!important;margin-left:1rem!important}.lang-btn{background:transparent!important;border:none!important;font-family:var(--font-family)!important;font-size:.95rem!important;font-weight:800!important;letter-spacing:.05em!important;color:var(--text-secondary)!important;cursor:pointer!important;padding:.4rem .8rem!important;border-radius:999px!important;transition:all .2s ease!important}.lang-btn:not(.active):hover{color:var(--text-primary)!important;background:#ffffff80!important}.lang-btn.active{background:var(--text-primary)!important;color:var(--bg-color)!important;box-shadow:0 4px 12px #0000004d!important}.lang-divider{display:none!important}.nav-left{margin-left:0!important;display:flex!important;align-items:center!important;gap:2rem!important}.lang-float.nav-right,.lang-float{position:absolute!important;right:5%!important;top:50%!important;transform:translateY(-50%)!important;margin:0!important;width:max-content!important;flex:0 0 auto!important}