*,:after,:before{box-sizing:border-box}*{margin:0}body,html{height:100%}body{line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}canvas,img,picture,svg,video{display:block;max-width:100%}button,input,select,textarea{font:inherit;color:inherit}a{color:inherit;text-decoration:none}:focus{outline:none}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}:root{--bp-sm:640px;--bp-md:768px;--bp-lg:1024px;--bp-xl:1280px;--font-sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial,"Noto Sans","Apple Color Emoji","Segoe UI Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;--radius-xs:6px;--radius-sm:10px;--radius-md:14px;--radius-lg:20px;--radius-xl:28px;--radius-full:9999px;--ease:cubic-bezier(.2,.8,.2,1);--fast:120ms;--normal:240ms;--slow:480ms;--container:1200px;--gutter:20px;--grad-1:#7C3AED;--grad-2:#22D3EE;--grad-3:#10B981;--shadow-lg:0 10px 40px -10px var(--shadow-color);--shadow-md:0 8px 30px -12px var(--shadow-color)}html[data-theme=light]{--bg:hsl(0 0% 100%);--bg-elev:hsl(0 0% 100%/0.7);--panel:hsl(0 0% 98%);--text:hsl(224 15% 10%);--muted:hsl(224 8% 45%);--border:hsl(224 12% 86%);--focus:hsl(183 100% 40%);--primary:hsl(262 83% 58%);--accent:hsl(183 87% 54%);--success:hsl(160 84% 39%);--warning:hsl(41 90% 45%);--danger:hsl(0 78% 55%);--shadow-color:hsl(224 15% 40%/0.28);--glass:rgba(255,255,255,0.6);--glass-border:rgba(0,0,0,0.06)}html[data-theme=dark]{--bg:hsl(240 10% 4%);--bg-elev:hsl(240 10% 6%/0.6);--panel:hsl(240 6% 9%/0.6);--text:hsl(0 0% 98%);--muted:hsl(240 5% 65%);--border:hsl(240 9% 20%);--focus:hsl(183 100% 50%);--primary:hsl(262 83% 68%);--accent:hsl(183 87% 64%);--success:hsl(160 84% 45%);--warning:hsl(41 95% 55%);--danger:hsl(0 85% 60%);--shadow-color:hsl(240 90% 50%/0.25);--glass:rgba(255,255,255,0.06);--glass-border:rgba(255,255,255,0.08)}html{font-family:var(--font-sans);background:var(--bg);color:var(--text)}body{background:radial-gradient(1200px 800px at 10% -10%,color-mix(in oklab,var(--grad-1) 24%,transparent),transparent),radial-gradient(1200px 800px at 110% 20%,color-mix(in oklab,var(--grad-2) 18%,transparent),transparent),radial-gradient(1200px 800px at 50% 120%,color-mix(in oklab,var(--grad-3) 18%,transparent),transparent),var(--bg);min-height:100%}.h1{font-weight:800;letter-spacing:-.02em;line-height:1.1;font-size:clamp(2.2rem,1.5rem + 3vw,4.2rem)}.h2{letter-spacing:-.01em;line-height:1.15;font-size:clamp(1.6rem,1.2rem + 1.6vw,2.6rem)}.h2,.h3{font-weight:700}.h3{line-height:1.2;font-size:clamp(1.25rem,1rem + 1vw,1.8rem)}.lead{font-size:clamp(1.05rem,.95rem + .5vw,1.25rem);color:var(--muted)}p{margin-block:.5rem 1rem;color:var(--text)}.small,small{font-size:.875rem;color:var(--muted)}code,kbd,pre,samp{font-family:var(--font-mono)}.container{width:min(100% - 2*var(--gutter),var(--container));margin-inline:auto}.stack>*+*{margin-top:var(--stack-gap,1rem)}.cluster{display:flex;flex-wrap:wrap;gap:var(--cluster-gap,.75rem);align-items:center}.center{display:grid;place-items:center}.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(var(--col-min,240px),1fr));grid-gap:var(--grid-gap,1.2rem);gap:var(--grid-gap,1.2rem)}.section{padding:clamp(48px,5vw,88px) 0}.card{background:var(--panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.glow{filter:drop-shadow(0 0 24px color-mix(in oklab,var(--accent) 40%,transparent))}.gradient-text{background:linear-gradient(120deg,var(--grad-1),var(--grad-2),var(--grad-3));-webkit-background-clip:text;background-clip:text;color:transparent}.gradient-bg{background:linear-gradient(120deg,var(--grad-1),var(--grad-2),var(--grad-3));color:white}.btn{--btn-bg:var(--primary);--btn-fg:white;--btn-bd:transparent;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border-radius:var(--radius-sm);padding:.7rem 1rem;font-weight:600;border:1px solid var(--btn-bd);background:var(--btn-bg);color:var(--btn-fg);transition:transform var(--fast) var(--ease),box-shadow var(--fast) var(--ease),background var(--fast) var(--ease),opacity var(--fast) var(--ease);box-shadow:0 0 0 0 rgba(0,0,0,0);cursor:pointer}.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn:active{transform:translateY(0)}.btn[disabled]{opacity:.5;cursor:not-allowed}.btn[data-variant=primary]{--btn-bg:linear-gradient(120deg,var(--grad-1),var(--grad-2))}.btn[data-variant=accent]{--btn-bg:linear-gradient(120deg,var(--grad-2),var(--grad-3))}.btn[data-variant=outline]{--btn-bg:transparent;--btn-fg:var(--text);--btn-bd:var(--border)}.btn[data-variant=ghost]{--btn-bg:transparent;--btn-fg:var(--text)}.btn[data-size=sm]{padding:.5rem .8rem;border-radius:var(--radius-xs);font-size:.9rem}.btn[data-size=lg]{padding:.9rem 1.2rem;border-radius:var(--radius-md);font-size:1.05rem}.input,.select,.textarea{width:100%;background:color-mix(in oklab,var(--panel) 85%,transparent);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.7rem .9rem;transition:border-color var(--fast) var(--ease),box-shadow var(--fast) var(--ease),background var(--fast) var(--ease)}.input::placeholder,.textarea::placeholder{color:color-mix(in oklab,var(--muted) 80%,transparent)}.input:focus,.select:focus,.textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in oklab,var(--accent) 24%,transparent)}.field{display:grid;grid-gap:.4rem;gap:.4rem}.label{font-size:.9rem}.help,.label{color:var(--muted)}.help{font-size:.85rem}.error{color:var(--danger)}.navbar{position:-webkit-sticky;position:sticky;top:0;z-index:50;background:linear-gradient(to bottom,var(--bg),color-mix(in oklab,var(--bg) 70%,transparent));-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--glass-border)}.navbar-inner{height:64px;display:flex;align-items:center;justify-content:space-between}.navlinks a{padding:.4rem .7rem;border-radius:var(--radius-xs);color:var(--muted)}.navlinks a:hover{color:var(--text);background:color-mix(in oklab,var(--panel) 80%,transparent)}.footer{border-top:1px solid var(--glass-border);background:color-mix(in oklab,var(--panel) 70%,transparent)}.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:grid;place-items:center;animation:fadeIn var(--slow) var(--ease)}.modal{width:min(92vw,640px);background:var(--panel);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:1.2rem;transform:translateY(6px);animation:popUp var(--normal) var(--ease) forwards}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes popUp{to{transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.float{animation:float 6s ease-in-out infinite}.shimmer{background:linear-gradient(90deg,transparent,color-mix(in oklab,var(--accent) 20%,transparent),transparent);background-size:200% 100%;animation:shimmer 2.8s linear infinite}.hero{position:relative;isolation:isolate;overflow:clip}.hero:after{content:"";position:absolute;inset:-20%;background:radial-gradient(600px 300px at 20% 20%,color-mix(in oklab,var(--grad-1) 16%,transparent),transparent),radial-gradient(800px 400px at 80% 10%,color-mix(in oklab,var(--grad-2) 14%,transparent),transparent),radial-gradient(600px 300px at 50% 90%,color-mix(in oklab,var(--grad-3) 14%,transparent),transparent);filter:blur(40px) saturate(1.1);z-index:-1;opacity:.75}.stackops-hero{position:relative;overflow:hidden;min-height:80vh;display:flex;align-items:center}.tech-selector{background:var(--panel);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:1.5rem;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.tech-option{display:flex;align-items:center;gap:.75rem;padding:.75rem;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--fast) var(--ease);border:1px solid transparent}.tech-option:hover{background:color-mix(in oklab,var(--panel) 80%,transparent);border-color:var(--border)}.tech-option.selected{background:color-mix(in oklab,var(--accent) 10%,transparent);border-color:var(--accent)}.tech-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:1.5rem;gap:1.5rem}.feature-card{background:var(--panel);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:1.5rem;transition:transform var(--normal) var(--ease),box-shadow var(--normal) var(--ease)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.feature-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:linear-gradient(120deg,var(--grad-1),var(--grad-2));border-radius:var(--radius-sm);margin-bottom:1rem;color:white}@media (max-width:768px){.navbar-inner{flex-direction:column;height:auto;padding:1rem 0;gap:1rem}.tech-selector{padding:1rem}.grid-auto{grid-template-columns:1fr}}