:root{color-scheme:light;--background: #F9FAFC;--foreground: #1A1C2E;--card: #FFFFFF;--card-foreground: #1A1C2E;--popover: #FFFFFF;--popover-foreground: #1A1C2E;--primary: #0AA347;--primary-foreground: #FFFFFF;--secondary: #353957;--secondary-foreground: #FFFFFF;--muted: #EFF1F6;--muted-foreground: #626784;--accent: #F1F5F9;--accent-foreground: #0AA347;--destructive: #FC6D77;--destructive-foreground: #FFFFFF;--border: #E2E4ED;--input: #E2E4ED;--ring: #0AA347;--chart-1: #0AA347;--chart-2: #353957;--chart-3: #71A8F3;--chart-4: #FAB124;--chart-5: #53BA7A;--radius: .375rem;--sidebar: #FFFFFF;--sidebar-foreground: #1A1C2E;--sidebar-primary: #0AA347;--sidebar-primary-foreground: #FFFFFF;--sidebar-accent: #F1F5F9;--sidebar-accent-foreground: #0AA347;--sidebar-border: #E2E4ED;--sidebar-ring: #0AA347;--font-sans: "Inter var", "Inter", system-ui, -apple-system, sans-serif;--font-serif: "Charter", "Bitstream Charter", serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--shadow-color: 0 0 0;--shadow-opacity: 0;--shadow-blur: 0px;--shadow-spread: 0px;--shadow-offset-x: 0px;--shadow-offset-y: 0px;--letter-spacing: -.015em;--spacing: .25rem;--shadow-xs: var(--shadow-offset-x) var(--shadow-offset-y) var(--shadow-blur) var(--shadow-spread) rgb(var(--shadow-color) / var(--shadow-opacity));--shadow-sm: var(--shadow-xs);--shadow-xl: var(--shadow-xs)}:root.dark{color-scheme:dark;--background: #1E2036;--foreground: #F8FAFC;--card: #2B2E4A;--card-foreground: #F8FAFC;--popover: #242740;--popover-foreground: #F8FAFC;--primary: #0AA347;--primary-foreground: #FFFFFF;--secondary: #353957;--secondary-foreground: #F8FAFC;--muted: #242740;--muted-foreground: #A1A7C1;--accent: #353957;--accent-foreground: #FFFFFF;--destructive: #FC6D77;--destructive-foreground: #FFFFFF;--border: #353957;--input: #141629;--ring: #0AA347;--chart-1: #0AA347;--chart-2: #71A8F3;--chart-3: #53BA7A;--chart-4: #FAB124;--chart-5: #FC6D77;--sidebar: #242740;--sidebar-foreground: #F8FAFC;--sidebar-primary: #0AA347;--sidebar-primary-foreground: #FFFFFF;--sidebar-accent: #353957;--sidebar-accent-foreground: #FFFFFF;--sidebar-border: #353957;--sidebar-ring: #0AA347;--letter-spacing: -.01em}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:var(--background);color:var(--foreground);font-family:var(--font-sans);letter-spacing:var(--letter-spacing)}a{color:inherit;text-decoration:none}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:calc(var(--spacing) * 4) clamp(1rem,4vw,4rem);border-bottom:1px solid var(--border);background:color-mix(in oklch,var(--background),transparent 8%);backdrop-filter:blur(16px);box-shadow:var(--shadow-xs)}.brand,.actions,nav{display:flex;align-items:center;gap:calc(var(--spacing) * 3)}.brand{font-weight:700;font-size:1rem}.mark{display:grid;place-items:center;width:2rem;height:2rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow-xs)}nav{color:var(--muted-foreground);font-size:.95rem}nav a:hover{color:var(--foreground)}.theme-toggle,.lang-switch,.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--background);color:var(--foreground);min-height:2.35rem;padding:.55rem .85rem;font-weight:600;cursor:pointer;box-shadow:var(--shadow-xs);transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease}.theme-toggle:hover,.lang-switch:hover,.button:hover{background:var(--accent);color:var(--accent-foreground)}.button:hover{transform:translateY(-1px)}main{overflow:hidden;background:radial-gradient(circle at 50% 0%,color-mix(in oklch,var(--muted),transparent 15%),transparent 34rem),var(--background)}.hero{position:relative;display:block;padding:clamp(4.5rem,9vw,9rem) clamp(1rem,4vw,4rem) clamp(3rem,7vw,6rem)}.hero:before{content:"";position:absolute;inset:5rem auto auto 50%;width:min(44rem,90vw);height:min(44rem,90vw);border:1px solid var(--border);border-radius:999px;background:radial-gradient(circle,color-mix(in oklch,var(--primary),transparent 90%),transparent 62%);transform:translate(-50%);pointer-events:none;opacity:.55}.hero-copy{position:relative;max-width:62rem;margin:0 auto;text-align:center}.eyebrow{color:var(--primary);text-transform:uppercase;letter-spacing:.16em;font-size:.76rem;font-weight:700}h1{max-width:12ch;margin:.5rem auto 1rem;font-size:clamp(3.2rem,8vw,7rem);line-height:.9;letter-spacing:-.075em;text-wrap:balance}h2{margin:.2rem 0 1rem;font-size:clamp(2rem,4vw,3.75rem);line-height:.95;letter-spacing:-.055em}.lead{max-width:50rem;margin-left:auto;margin-right:auto;font-size:clamp(1.15rem,2vw,1.55rem);color:var(--muted-foreground);line-height:1.45}.price{display:inline-block;margin:1rem 0 1.25rem;padding:.8rem 1rem;border:1px solid var(--border);border-radius:calc(var(--radius) + .4rem);background:var(--secondary);color:var(--secondary-foreground);font-weight:600;box-shadow:var(--shadow-sm)}.hero-actions,.chat-controls{display:flex;flex-wrap:wrap;justify-content:center;gap:.75rem}.button.primary{background:var(--primary);color:var(--primary-foreground);border-color:var(--primary)}.button.ghost{background:var(--accent);color:var(--accent-foreground)}.lang-switch{color:var(--accent-foreground)}.grid.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;padding:0 clamp(1rem,4vw,4rem) clamp(4rem,7vw,7rem)}.card,.panel{border:1px solid var(--border);border-radius:calc(var(--radius) + .75rem);background:var(--card);color:var(--card-foreground);box-shadow:var(--shadow-sm)}.card{padding:1.35rem;position:relative;overflow:hidden;min-height:13rem}.card:nth-child(odd){background:color-mix(in oklch,var(--card),var(--primary) 6%);transform:translateY(.75rem)}.card:nth-child(2n){background:color-mix(in oklch,var(--card),var(--secondary) 5%)}.card:nth-child(3n+2){border-color:color-mix(in oklch,var(--border),var(--primary) 45%)}.card:before{content:"";position:absolute;inset:0 auto auto 0;width:100%;height:3px;background:var(--primary);opacity:.85}.card-icon{display:inline-grid;place-items:center;width:2.35rem;height:2.35rem;margin-bottom:.9rem;border-radius:999px;background:color-mix(in oklch,var(--primary),transparent 86%);color:var(--primary);border:1px solid color-mix(in oklch,var(--primary),transparent 65%);font-weight:800}.card:nth-child(2n) .card-icon{background:var(--primary);color:var(--primary-foreground)}.card h2{font-size:1.25rem;letter-spacing:-.03em;line-height:1.1}.card p,.section-heading p,.steps{color:var(--muted-foreground);line-height:1.6}.panel{margin:0 clamp(1rem,4vw,4rem) clamp(4rem,7vw,7rem);padding:clamp(1.3rem,4vw,3rem)}.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:2rem}.steps{margin:0;padding-left:1.2rem;font-size:1.08rem}.steps li{margin:.85rem 0}.video-frame{position:relative;width:100%;aspect-ratio:16 / 9;overflow:hidden;border-radius:calc(var(--radius) + .6rem);border:1px solid var(--border);background:var(--muted);box-shadow:var(--shadow-xl)}.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.chat-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:2rem;align-items:start}.chat-box{border:1px solid var(--border);border-radius:calc(var(--radius) + .6rem);background:var(--popover);color:var(--popover-foreground);padding:1rem;box-shadow:var(--shadow-sm)}.chat-messages{height:22rem;overflow-y:auto;display:flex;flex-direction:column;gap:.75rem;padding-right:.4rem}.bubble{max-width:86%;padding:.85rem 1rem;border-radius:var(--radius);line-height:1.45;white-space:pre-wrap}.bubble.user{align-self:flex-end;background:var(--primary);color:var(--primary-foreground)}.bubble.bot{align-self:flex-start;background:var(--card);border:1px solid var(--border)}textarea{width:100%;min-height:5rem;margin:1rem 0 .75rem;resize:vertical;border:1px solid var(--input);border-radius:var(--radius);background:var(--background);color:var(--foreground);padding:.9rem;font:inherit;outline-color:var(--ring)}textarea:focus{border-color:var(--ring);box-shadow:0 0 0 3px color-mix(in oklch,var(--ring),transparent 70%)}.chat-status{min-height:1.2rem;color:var(--muted-foreground)}footer{padding:2rem clamp(1rem,4vw,4rem);color:var(--muted-foreground);border-top:1px solid var(--border);background:var(--background)}footer a{color:var(--primary);font-weight:700}@media(max-width:900px){.split,.chat-panel{grid-template-columns:1fr}.grid.cards{grid-template-columns:1fr 1fr}h1{font-size:clamp(3rem,14vw,5rem)}nav{display:none}}@media(max-width:620px){.grid.cards{grid-template-columns:1fr}.card:nth-child(odd){transform:none}.topbar{padding:.85rem 1rem}.brand span:last-child{display:none}.chat-messages{height:18rem}}