*{margin:0;padding:0;box-sizing:border-box}:root{--black:#0a0a0a;--dark:#111111;--surface:#1a1a1a;--surface-light:#242424;--border:#2a2a2a;--border-light:#3a3a3a;--text:#ffffff;--text-secondary:#b0b0b0;--text-muted:#999999;--lime:#c8ff00;--lime-dim:#a8d900;--purple:#a855f7;--purple-light:#c084fc;--orange:#ff6b35;--orange-light:#ff8c5a;--cyan:#22d3ee;--pink:#ff3366;--accent:var(--cyan);--ease-out-expo:cubic-bezier(0.16,1,0.3,1);--ease-out-quart:cubic-bezier(0.25,1,0.5,1);--ease-out-cubic:cubic-bezier(0.33,1,0.68,1)}html{scroll-behavior:auto}body{background:var(--black);color:var(--text);font-family:'Space Grotesk',system-ui,sans-serif;font-weight:400;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}::selection{background:var(--accent);color:var(--black)}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--black)}::-webkit-scrollbar-thumb{background:var(--surface-light);border-radius:5px;border:2px solid var(--black)}::-webkit-scrollbar-thumb:hover{background:var(--border-light)}h1,h2,h3,h4,h5,h6{font-family:'Syne',system-ui,sans-serif;font-weight:700;line-height:1.1;letter-spacing:-0.03em}code{font-family:'JetBrains Mono',monospace;font-size:0.85em;background:var(--surface);padding:0.15em 0.4em;border-radius:4px}.container{max-width:1000px;margin:0 auto;padding:5rem 2rem}.page-header{text-align:center;margin-bottom:6rem;padding-top:2rem}.page-title{font-size:clamp(2.5rem,7vw,4rem);font-weight:700;letter-spacing:-0.03em;margin-bottom:1rem}.page-subtitle{font-size:1.125rem;color:var(--text-secondary);max-width:500px;margin:0 auto}.example{margin-bottom:8rem;padding-bottom:4rem;border-bottom:1px solid var(--border)}.example:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}.example-header{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}.example-number{font-family:'JetBrains Mono',monospace;font-size:0.75rem;font-weight:600;color:var(--accent);letter-spacing:0.1em}.example-title{font-family:'Space Grotesk',system-ui,sans-serif;font-size:0.875rem;font-weight:500;text-transform:uppercase;letter-spacing:0.1em;color:var(--text-muted)}.example-content{padding-left:3rem}.example-instruction{font-size:1rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.7}.ring-gallery{--card-w:230px;--card-h:310px;--stage-h:430px}.ring-stage{position:relative}.ring{display:flex;gap:1rem;overflow-x:auto;padding:1rem 0}.ring-card{flex:0 0 var(--card-w);width:var(--card-w);height:var(--card-h)}.ring-hint{display:none}.ring-gallery.is-3d .ring-stage{height:var(--stage-h);overflow:hidden;perspective:1400px;perspective-origin:50% 42%;cursor:grab;touch-action:pan-y;user-select:none;-webkit-user-select:none;border-radius:16px}.ring-gallery.is-3d.is-dragging .ring-stage{cursor:grabbing}.ring-gallery.is-3d .ring-stage:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.ring-gallery.is-3d .ring-tilt{position:absolute;inset:0;transform-style:preserve-3d}.ring-gallery.is-3d .ring{position:absolute;inset:0;display:block;overflow:visible;padding:0;transform-style:preserve-3d}.ring-gallery.is-3d .ring-card{position:absolute;top:50%;left:50%;margin-left:calc(var(--card-w) / -2);margin-top:calc(var(--card-h) / -2)}.ring-card-inner{position:relative;display:block;width:100%;height:100%;background:var(--grad,linear-gradient(160deg,#22d3ee,#0e7490));border:1px solid rgba(255,255,255,0.14);border-radius:14px;overflow:hidden;filter:blur(var(--spin-blur,0px))}.ring-card-inner::after{content:'';position:absolute;inset:0;background:radial-gradient(120% 90% at 20% 0%,rgba(255,255,255,0.22),transparent 55%),linear-gradient(to top,rgba(10,10,10,0.35),transparent 45%);pointer-events:none}.ring-card-num{position:absolute;top:1rem;left:1.1rem;font-family:'Syne',system-ui,sans-serif;font-weight:800;font-size:4.25rem;line-height:1;letter-spacing:-0.04em;color:rgba(255,255,255,0.92);mix-blend-mode:overlay;z-index:1}.ring-card-name{position:absolute;bottom:0.9rem;left:1.1rem;right:1.1rem;font-family:'JetBrains Mono',monospace;font-size:0.62rem;font-weight:600;text-transform:uppercase;letter-spacing:0.14em;color:rgba(255,255,255,0.85);z-index:1}.ring-gallery.is-3d .ring-hint{position:absolute;bottom:1rem;left:50%;transform:translateX(-50%);display:inline-flex;align-items:center;gap:0.5rem;padding:0.45rem 0.9rem;font-family:'JetBrains Mono',monospace;font-size:0.65rem;font-weight:600;text-transform:uppercase;letter-spacing:0.12em;color:var(--accent);background:rgba(10,10,10,0.7);border:1px solid var(--border);border-radius:100px;pointer-events:none;transition:opacity 0.3s var(--ease-out-cubic)}.ring-gallery.is-3d.is-dragging .ring-hint{opacity:0}.ring-meta{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;margin-top:1.5rem;padding-top:1.25rem;border-top:1px solid var(--border)}.ring-caption-mask{overflow:hidden}.ring-caption-title{display:inline-block;font-family:'Syne',system-ui,sans-serif;font-weight:700;font-size:1.5rem;letter-spacing:-0.02em;line-height:1.25}.ring-caption-sub{display:inline-block;font-family:'JetBrains Mono',monospace;font-size:0.7rem;font-weight:500;text-transform:uppercase;letter-spacing:0.12em;color:var(--text-muted);margin-top:0.35rem}.ring-counter{display:flex;align-items:baseline;gap:0.4rem;font-family:'JetBrains Mono',monospace;font-size:0.8rem;font-weight:600;letter-spacing:0.08em;white-space:nowrap}.ring-counter-mask{display:inline-block;overflow:hidden}.ring-counter-current{display:inline-block;color:var(--accent);font-size:1.1rem}.ring-counter-sep,.ring-counter-total{color:var(--text-muted)}@media (max-width:768px){.container{padding:3rem 1.5rem}.page-header{margin-bottom:4rem}.example{margin-bottom:5rem;padding-bottom:3rem}.example-content{padding-left:0}}@media (max-width:640px){.ring-gallery{--card-w:148px;--card-h:200px;--stage-h:290px}.ring-card-num{font-size:2.75rem;top:0.7rem;left:0.8rem}.ring-card-name{bottom:0.7rem;left:0.8rem;right:0.8rem;font-size:0.55rem}.ring-caption-title{font-size:1.15rem}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important}.ring-hint{display:none !important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}