:root{--bg-color:#fff;--text-primary:#000;--text-secondary:#4b5563;--text-tertiary:#9ca3af;--brand-green:#10b981;--brand-blue:#0084ff;--badge-bg:#fff;--badge-text:#333;--badge-border:#e5e7eb;--nav-bg:#ffffffe6;--font-body:"Space Grotesk", -apple-system, sans-serif;--font-heading:"Space Grotesk", -apple-system, sans-serif;--border:#e5e7eb}*{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;width:100%;line-height:1.5;overflow-x:clip}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);letter-spacing:-.02em;font-weight:600}.container{max-width:1400px;margin:0 auto;padding:0 2rem}.navbar{background:var(--nav-bg);-webkit-backdrop-filter:blur(12px);z-index:100;justify-content:center;width:100%;padding:1.25rem 0;display:flex;position:fixed;top:0;left:0}.nav-content{justify-content:space-between;align-items:center;width:100%;max-width:1400px;padding:0 3rem;display:flex}.nav-left{align-items:center;gap:2rem;display:flex}.logo-container{font-size:1.125rem;font-weight:600;font-family:var(--font-heading);align-items:center;gap:.5rem;display:flex}.logo-icon{color:#fff;background:linear-gradient(135deg,#10b981,#059669);border-radius:8px;justify-content:center;align-items:center;width:28px;height:28px;font-size:14px;font-weight:700;display:flex}.nav-divider{background-color:#e5e7eb;width:1px;height:16px;margin-left:-1rem}.nav-links{align-items:center;gap:1.5rem;display:flex}.nav-link{font-family:var(--font-heading);color:var(--text-secondary);font-size:.9rem;font-weight:500;transition:color .2s}.nav-link:hover{color:var(--text-primary)}.nav-right{align-items:center;gap:1.5rem;display:flex}.btn-green{font-family:var(--font-heading);background:var(--brand-green);color:#fff;border-radius:12px;padding:.6rem 1.25rem;font-size:.9rem;font-weight:500;transition:opacity .2s,transform .15s}.btn-green:hover{opacity:.9;transform:scale(1.02)}.btn-black{font-family:var(--font-heading);background:var(--text-primary);color:#fff;cursor:pointer;border:none;border-radius:12px;padding:.6rem 1.25rem;font-size:1rem;font-weight:500;transition:opacity .2s}.btn-black:hover{opacity:.8}.btn-outline{font-family:var(--font-heading);color:var(--text-primary);cursor:pointer;background:0 0;border:1px solid #d1d5db;border-radius:12px;padding:.6rem 1.25rem;font-size:1rem;font-weight:500;transition:background .2s,opacity .2s}.btn-outline:hover{background:#f3f4f6}#hero{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:100vh;padding:80px 24px 0;display:flex;position:relative;overflow:hidden}.hero-eyebrow{background:var(--badge-bg);border:1px solid var(--badge-border);font-size:14px;font-family:var(--font-body);color:var(--text-primary);border-radius:8px;align-items:center;gap:8px;margin-bottom:24px;padding:6px 12px;font-weight:500;animation:.8s both fadeUp;display:inline-flex;box-shadow:0 1px 2px #0000000d}.hero-eyebrow-dot{background:#10b981;border-radius:50%;width:6px;height:6px;animation:2s infinite pulse;box-shadow:0 0 8px #10b981}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}.hero-title{font-size:clamp(48px,8vw,96px);font-family:var(--font-heading);letter-spacing:-.03em;color:var(--text-primary);margin-bottom:20px;font-weight:700;line-height:1.02;animation:.8s .1s both fadeUp}.hero-title .accent{background:linear-gradient(135deg,#10b981,#059669);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.hero-sub{font-size:clamp(17px,2.5vw,21px);font-family:var(--font-body);color:#86868b;max-width:560px;margin:0 auto 36px;font-weight:400;line-height:1.5;animation:.8s .2s both fadeUp}.hero-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin-bottom:80px;animation:.8s .3s both fadeUp;display:flex}@keyframes fadeUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.ticker-wrap{background:#fafafa;border-top:1px solid #e5e7eb;border-bottom:1px solid #e5e7eb;padding:16px 0;overflow:hidden}.ticker{gap:48px;width:max-content;animation:20s linear infinite ticker;display:flex}.ticker-item{color:#10b981;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap;font-size:13px;font-family:var(--font-heading);align-items:center;gap:12px;font-weight:500;display:flex}.ticker-dot{background:#10b981;border-radius:50%;width:4px;height:4px}@keyframes ticker{0%{transform:translate(0)}to{transform:translate(-50%)}}#phone-scroll{height:400vh;position:relative}.phone-sticky{justify-content:center;align-items:center;height:100vh;display:flex;position:sticky;top:0;overflow:hidden}.phone-scene{justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative}.screen-label{text-align:center;pointer-events:none;transition:opacity .4s;position:absolute;bottom:12vh;left:50%;transform:translate(-50%)}.screen-label-title{font-size:clamp(28px,4vw,48px);font-weight:700;font-family:var(--font-heading);letter-spacing:-.02em;color:var(--text-primary);white-space:nowrap;line-height:1.1}.screen-label-sub{font-size:17px;font-family:var(--font-body);color:#86868b;margin-top:8px}.iphone{width:300px;height:600px;transform-style:preserve-3d;transform-origin:50%;will-change:transform;position:relative}.iphone-shell{background:linear-gradient(145deg,#2a2a2a 0%,#1a1a1a 40%,#111 100%);border:1px solid #ffffff1f;border-radius:48px;position:absolute;inset:0;box-shadow:0 0 0 1px #00000080,0 2px 4px #0006,inset 0 1px #ffffff1a,0 40px 120px #000c}.iphone-btn-left{background:linear-gradient(90deg,#222,#333);border-radius:2px 0 0 2px;width:3px;height:36px;position:absolute;top:120px;left:-3px}.iphone-btn-left2{background:linear-gradient(90deg,#222,#333);border-radius:2px 0 0 2px;width:3px;height:64px;position:absolute;top:172px;left:-3px}.iphone-btn-left3{background:linear-gradient(90deg,#222,#333);border-radius:2px 0 0 2px;width:3px;height:64px;position:absolute;top:248px;left:-3px}.iphone-btn-right{background:linear-gradient(270deg,#222,#333);border-radius:0 2px 2px 0;width:3px;height:80px;position:absolute;top:180px;right:-3px}.iphone-screen{font-family:var(--font-body);background:#000;border-radius:40px;position:absolute;inset:10px;overflow:hidden}.dynamic-island{z-index:10;background:#000;border-radius:20px;width:126px;height:34px;position:absolute;top:14px;left:50%;transform:translate(-50%)}.app-screen{opacity:0;border-radius:40px;transition:opacity .5s;position:absolute;inset:0;overflow:hidden}.app-screen.active{opacity:1}.screen-widgets{background:linear-gradient(#1a1a2e 0%,#0d1117 100%);flex-direction:column;gap:12px;padding:60px 14px 20px;display:flex}.widget-card{background:#161b22f2;border:1px solid #ffffff0f;border-radius:18px;padding:14px 16px;position:relative;overflow:hidden}.widget-header{justify-content:space-between;align-items:flex-start;margin-bottom:8px;display:flex}.widget-label{text-transform:uppercase;letter-spacing:.05em;font-size:11px;font-weight:600}.widget-label.github{color:#10b981}.widget-label.leetcode{color:#f59e0b}.widget-label.codeforces{color:#ef4444}.widget-count{color:#fff;font-size:28px;font-weight:700;line-height:1}.widget-count-sub{color:#555;font-size:11px;font-weight:400}.widget-platform-icon{border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:16px;display:flex}.widget-heatmap{grid-template-columns:repeat(26,1fr);gap:2px;margin-top:6px;display:grid}.heatmap-cell{aspect-ratio:1;border-radius:2px;min-width:0}.heatmap-cell.gh-0{background:#10b98114}.heatmap-cell.gh-1{background:#10b98140}.heatmap-cell.gh-2{background:#10b98180}.heatmap-cell.gh-3{background:#10b981bf}.heatmap-cell.gh-4{background:#10b981}.heatmap-cell.lc-0{background:#3b82f614}.heatmap-cell.lc-1{background:#3b82f640}.heatmap-cell.lc-2{background:#3b82f680}.heatmap-cell.lc-3{background:#3b82f6bf}.heatmap-cell.lc-4{background:#3b82f6}.heatmap-cell.cf-0{background:#ef444414}.heatmap-cell.cf-1{background:#ef444440}.heatmap-cell.cf-2{background:#ef444480}.heatmap-cell.cf-3{background:#ef4444bf}.heatmap-cell.cf-4{background:#ef4444}.widget-months{color:#444;text-transform:uppercase;letter-spacing:.05em;justify-content:space-between;margin-top:4px;font-size:7px;display:flex}.screen-settings{background:#0d1117;padding:60px 16px 20px}.settings-title{color:#fff;font-size:22px;font-weight:700;font-family:var(--font-heading);margin-bottom:16px}.settings-card{background:#161b22;border:1px solid #ffffff0f;border-radius:14px;margin-bottom:10px;padding:14px}.settings-row{justify-content:space-between;align-items:center;padding:8px 0;display:flex}.settings-row+.settings-row{border-top:1px solid #ffffff0a}.settings-label{color:#ccc;font-size:13px;font-weight:500}.settings-value{color:#10b981;font-size:12px;font-weight:500}.settings-toggle{background:#10b981;border-radius:10px;width:36px;height:20px;position:relative}.settings-toggle:after{content:"";background:#fff;border-radius:50%;width:16px;height:16px;position:absolute;top:2px;right:2px}.screen-sizes{background:#0d1117;padding:60px 16px 20px}.sizes-title{color:#fff;font-size:18px;font-weight:700;font-family:var(--font-heading);margin-bottom:6px}.sizes-sub{color:#555;margin-bottom:16px;font-size:12px}.size-option{background:#161b22;border:1px solid #ffffff0f;border-radius:14px;justify-content:space-between;align-items:center;margin-bottom:10px;padding:14px 16px;display:flex}.size-option.active{border-color:#10b981;box-shadow:0 0 0 1px #10b981,inset 0 0 12px #10b9810d}.size-name{color:#fff;font-size:14px;font-weight:600}.size-desc{color:#555;margin-top:2px;font-size:10px}.size-check{border:2px solid #333;border-radius:50%;justify-content:center;align-items:center;width:20px;height:20px;display:flex}.size-check.active{color:#fff;background:#10b981;border-color:#10b981;font-size:12px}.phone-bottom-nav{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0d1117f2;border-top:1px solid #ffffff0a;justify-content:space-around;align-items:center;height:72px;padding:0 8px 16px;display:flex;position:absolute;bottom:0;left:0;right:0}.phone-nav-item{color:#555;flex-direction:column;align-items:center;gap:3px;font-size:9px;display:flex}.phone-nav-item.active{color:#10b981}.phone-nav-icon{font-size:18px}#features{background:var(--bg-color);padding:120px 24px}.features-eyebrow{text-align:center;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-green);font-size:13px;font-family:var(--font-heading);margin-bottom:16px}.features-title{text-align:center;letter-spacing:-.025em;color:var(--text-primary);font-size:clamp(32px,5vw,56px);font-weight:700;line-height:1.07;font-family:var(--font-heading);margin-bottom:12px}.features-sub{text-align:center;color:#86868b;max-width:560px;font-size:19px;line-height:1.5;font-family:var(--font-body);margin:0 auto 80px}.features-grid{border-radius:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2px;max-width:1100px;margin:0 auto;display:grid;overflow:hidden}.feature-tile{background:#111;padding:40px 36px;transition:background .3s;position:relative;overflow:hidden}.feature-tile:hover{background:#161616}.feature-tile:before{content:"";pointer-events:none;border:1px solid #ffffff0f;position:absolute;inset:0}.feature-icon{margin-bottom:20px;font-size:36px;display:block}.feature-title{letter-spacing:-.01em;color:#fff;font-size:21px;font-weight:700;font-family:var(--font-heading);margin-bottom:10px}.feature-desc{color:#86868b;font-size:15px;line-height:1.6;font-family:var(--font-body)}#platforms{text-align:center;border-top:1px solid var(--border);padding:100px 24px}.platforms-grid{grid-template-columns:repeat(3,1fr);gap:24px;max-width:900px;margin:0 auto;display:grid}.platform-card{border:1px solid var(--border);text-align:center;background:#fafafa;border-radius:20px;padding:40px 24px;transition:transform .3s,box-shadow .3s}.platform-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px #00000014}.platform-icon{margin-bottom:16px;font-size:48px;display:block}.platform-name{font-size:20px;font-weight:700;font-family:var(--font-heading);margin-bottom:8px}.platform-desc{color:var(--text-secondary);font-size:14px;line-height:1.5;font-family:var(--font-body)}.platform-color-bar{border-radius:2px;width:48px;height:4px;margin:16px auto 0}.platform-color-bar.github{background:#10b981}.platform-color-bar.leetcode{background:#f59e0b}.platform-color-bar.codeforces{background:#ef4444}.about-section{background-color:var(--bg-color);flex-direction:column;align-items:center;padding:8rem 2rem 4rem;display:flex}.about-container{width:100%;max-width:800px;margin:0 auto}.about-heading{font-size:2.5rem;font-family:var(--font-heading);color:var(--text-primary);margin-bottom:1.5rem;font-weight:700}.about-text{color:var(--text-secondary);font-size:1.1rem;line-height:1.7;font-family:var(--font-heading)}footer{background:var(--bg-color);font-family:var(--font-body);color:var(--text-secondary);justify-content:space-between;align-items:center;padding:2rem 4rem;font-size:.9rem;display:flex}.footer-left{font-weight:500}.footer-right,.footer-links{gap:1.5rem;display:flex}.footer-link{color:var(--text-secondary);text-transform:capitalize;text-decoration:none;transition:color .2s}.footer-link:hover{color:var(--text-primary)}.reveal{opacity:0;transition:opacity .7s,transform .7s;transform:translateY(32px)}.reveal.visible{opacity:1;transform:translateY(0)}@media (width<=768px){.nav-content{flex-direction:column;gap:1rem;padding:0 .5rem}.nav-left{flex-wrap:nowrap;justify-content:center;gap:.5rem;width:100%}.nav-links{gap:.5rem}.nav-right{justify-content:center;gap:.5rem}.logo-container{gap:.25rem;font-size:.9rem}.nav-link{font-size:.8rem}.nav-divider{margin-left:0}footer{text-align:center;flex-direction:column;gap:1rem}.footer-right{flex-direction:column}.platforms-grid{grid-template-columns:1fr;max-width:400px}}@media (width<=600px){.founder-card{padding:32px 24px}}