*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--color-primary:#06f;--color-secondary:#60f;--color-success:#00ff75;--color-warning:#fb0;--color-error:red;--color-bg:#0d1117;--color-bg-secondary:#161b22;--color-bg-tertiary:#21262d;--color-border:#30363d;--color-text:#c9d1d9;--color-text-secondary:#8b949e;--spacing-xs:.25rem;--spacing-sm:.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--radius-sm:.25rem;--radius-md:.5rem;--radius-lg:.75rem;--radius-xl:1rem;--radius-full:9999px;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--shadow-glow:0 0 20px #0066ff80;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-mono:"Fira Code", "Courier New", monospace;--transition-fast:.15s ease-in-out;--transition-base:.25s ease-in-out;--transition-slow:.35s ease-in-out;--z-dropdown:1000;--z-sticky:1020;--z-fixed:1030;--z-modal-backdrop:1040;--z-modal:1050;--z-popover:1060;--z-tooltip:1070}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text);line-height:1.6;overflow-x:hidden}h1,h2,h3,h4,h5,h6{margin-bottom:var(--spacing-md);font-weight:600;line-height:1.2}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.75rem}h4{font-size:1.5rem}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-bottom:var(--spacing-md)}a{color:var(--color-primary);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--color-secondary)}code{font-family:var(--font-mono);background-color:var(--color-bg-secondary);border-radius:var(--radius-sm);padding:.125rem .25rem;font-size:.875em}pre{font-family:var(--font-mono);background-color:var(--color-bg-secondary);padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md);overflow-x:auto}pre code{background-color:#0000;padding:0}::-webkit-scrollbar{width:12px;height:12px}::-webkit-scrollbar-track{background:var(--color-bg-secondary)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-md)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-secondary)}::selection{background-color:var(--color-primary);color:#fff}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.container{width:100%;max-width:1280px;padding:0 var(--spacing-md);margin:0 auto}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.text-center{text-align:center}.text-sm{font-size:.875rem}.text-lg{font-size:1.125rem}.text-xl{font-size:1.25rem}.font-bold{font-weight:700}.font-semibold{font-weight:600}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.animate-fadeIn{animation:fadeIn var(--transition-base)}.animate-slideInUp{animation:slideInUp var(--transition-base)}.animate-pulse{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}.animate-spin{animation:1s linear infinite spin}@media (width<=768px){html{font-size:14px}h1{font-size:2rem}h2{font-size:1.75rem}h3{font-size:1.5rem}}@media print{body{color:#000;background-color:#fff}.no-print{display:none!important}}.app{flex-direction:column;min-height:100vh;display:flex}.splash-screen{z-index:9999;background:linear-gradient(135deg,#0d1117 0%,#21262d 100%);justify-content:center;align-items:center;width:100%;height:100vh;animation:.5s ease-in-out fadeIn;display:flex;position:fixed;top:0;left:0}.splash-content{text-align:center;animation:.8s ease-out slideInUp}.logo-container{perspective:1000px;margin-bottom:2rem}.logo-cube{width:100px;height:100px;transform-style:preserve-3d;margin:0 auto;animation:4s linear infinite rotateCube;position:relative}.cube-face{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#0066ff1a;border:2px solid #06f;width:100px;height:100px;position:absolute}.cube-face.front{transform:rotateY(0)translateZ(50px)}.cube-face.back{transform:rotateY(180deg)translateZ(50px)}.cube-face.right{transform:rotateY(90deg)translateZ(50px)}.cube-face.left{transform:rotateY(-90deg)translateZ(50px)}.cube-face.top{transform:rotateX(90deg)translateZ(50px)}.cube-face.bottom{transform:rotateX(-90deg)translateZ(50px)}@keyframes rotateCube{0%{transform:rotateX(0)rotateY(0)}to{transform:rotateX(360deg)rotateY(360deg)}}.splash-title{justify-content:center;align-items:center;gap:.5rem;margin-bottom:1rem;font-size:4rem;font-weight:700;display:flex}.gradient-text{background:linear-gradient(135deg,#06f 0%,#0ff 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.vr-text{background:linear-gradient(135deg,#60f 0%,#f0f 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1rem;display:flex}.logo{align-items:center;gap:.25rem;font-size:1.5rem;font-weight:700;display:flex}.logo-text{display:inline-block}.nav{gap:.5rem;display:flex}.nav-button{color:var(--color-text);cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition-fast);background:0 0;border:none;padding:.5rem 1rem;font-size:1rem}.nav-button:hover{background:var(--color-bg-tertiary);color:var(--color-primary)}.header-actions{gap:.5rem;display:flex}.icon-button{border:1px solid var(--color-border);border-radius:var(--radius-md);width:40px;height:40px;color:var(--color-text);cursor:pointer;transition:all var(--transition-fast);background:0 0;justify-content:center;align-items:center;display:flex}.icon-button:hover{background:var(--color-bg-tertiary);border-color:var(--color-primary);color:var(--color-primary)}.main-content{flex:1;padding:2rem 0}.hero{max-width:1280px;margin:0 auto;padding:0 1rem}.hero-content{text-align:center;animation:1s ease-in-out fadeIn}.hero-title{margin-bottom:1.5rem;font-size:3.5rem;font-weight:700;line-height:1.2}.hero-description{color:var(--color-text-secondary);max-width:700px;margin:0 auto 2rem;font-size:1.25rem}.hero-actions{justify-content:center;gap:1rem;margin-bottom:4rem;display:flex}.btn{border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);border:none;justify-content:center;align-items:center;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;display:inline-flex}.btn-primary{color:#fff;background:linear-gradient(135deg,#06f 0%,#0ff 100%);box-shadow:0 4px 12px #0066ff4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #06f6}.btn-secondary{background:var(--color-bg-secondary);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg-tertiary);border-color:var(--color-primary);color:var(--color-primary)}.features-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:4rem;display:grid}.feature-card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);text-align:center;transition:all var(--transition-base);padding:2rem;animation:1s ease-in-out fadeIn}.feature-card:hover{box-shadow:var(--shadow-lg);border-color:var(--color-primary);transform:translateY(-4px)}.feature-icon{background:var(--color-bg-tertiary);border-radius:var(--radius-lg);justify-content:center;align-items:center;width:64px;height:64px;margin:0 auto 1rem;display:flex}.feature-title{margin-bottom:.5rem;font-size:1.25rem;font-weight:600}.feature-description{color:var(--color-text-secondary);font-size:.95rem;line-height:1.6}@media (width<=768px){.splash-title{font-size:2.5rem}.hero-title{font-size:2rem}.hero-description{font-size:1rem}.hero-actions{flex-direction:column;align-items:stretch}.nav{display:none}.features-grid{grid-template-columns:1fr}}@media (width<=480px){.splash-title{font-size:2rem}.logo-cube,.cube-face{width:60px;height:60px}.cube-face.front{transform:rotateY(0)translateZ(30px)}.cube-face.back{transform:rotateY(180deg)translateZ(30px)}.cube-face.right{transform:rotateY(90deg)translateZ(30px)}.cube-face.left{transform:rotateY(-90deg)translateZ(30px)}.cube-face.top{transform:rotateX(90deg)translateZ(30px)}.cube-face.bottom{transform:rotateX(-90deg)translateZ(30px)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-100%)}to{opacity:1;transform:translateY(0)}}