:root{--fs-xs: clamp(.64rem, .62rem + .17vw, .72rem);--fs-sm: clamp(.72rem, .68rem + .21vw, .81rem);--fs-md: clamp(.85rem, .78rem + .3vw, .95rem);--fs-lg: clamp(.94rem, .83rem + .51vw, 1.23rem);--fs-xl: clamp(1.15rem, .9rem + .85vw, 1.7rem);--fs-xxl: clamp(1.53rem, 1.02rem + 1.44vw, 2.38rem);--pad-page: clamp(16px, 2.2vw, 32px);--pad-section: clamp(18px, 3vw, 48px)}*{box-sizing:border-box}img,svg,video{max-width:100%;height:auto}html{font-size:clamp(12px,.75vw + 9px,14px)}body{margin:0;font-family:Segoe UI,Roboto,Arial,sans-serif;min-height:100vh;background:linear-gradient(135deg,#0a0e27,#06f),url(https://www.transparenttextures.com/patterns/circuit-board.png);background-blend-mode:lighten;color:#f8fafc;position:relative;overflow-x:hidden;font-size:var(--fs-md);line-height:1.5}h1{font-size:var(--fs-xxl);line-height:1.15;margin:0 0 .5em}h2{font-size:var(--fs-xl);line-height:1.2;margin:0 0 .5em}h3{font-size:var(--fs-lg);line-height:1.25;margin:0 0 .5em}h4{font-size:var(--fs-md);line-height:1.3;margin:0 0 .5em}p,li,span{font-size:inherit}label,input,textarea,button,select{font-size:var(--fs-sm);line-height:1.4}body:before{content:"";position:fixed;inset:0;z-index:0;pointer-events:none;background:url(https://www.transparenttextures.com/patterns/circuit-board.png),radial-gradient(ellipse at 60% 40%,rgba(0,214,255,.08) 0%,transparent 70%),radial-gradient(ellipse at 30% 80%,rgba(139,92,246,.08) 0%,transparent 80%),linear-gradient(120deg,#10b9810d,#0066ff0d);opacity:.55;animation:neural-light 8s linear infinite alternate}@keyframes neural-light{0%{filter:blur(0px) brightness(1.1);opacity:.45}to{filter:blur(2.5px) brightness(1.25);opacity:.65}}.glassy-card{background:#0a0e27f2;border-radius:18px;box-shadow:0 8px 32px #000e2759,0 1.5px 16px #00d9ff;backdrop-filter:blur(8px) saturate(1.2);border:1.5px solid rgba(0,214,255,.15);color:#f8fafc}.accent-gradient{background:linear-gradient(90deg,#00d9ff,#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.neural-glow{box-shadow:0 0 16px 4px #00d9ff,0 0 32px 8px #8b5cf64d}.main-header,.main-footer,.app-content{background:transparent!important}.signup-modal{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:3000;display:flex;align-items:center;justify-content:center}.signup-modal-backdrop{position:absolute;inset:0;background:#181f2abf;backdrop-filter:blur(4px);z-index:1}.signup-modal-content{position:relative;z-index:2;background:#232b3efa;border-radius:20px;box-shadow:0 8px 32px #3b82f655,0 1.5px 16px #a78bfa55;padding:0;min-width:340px;max-width:98vw;max-height:98vh;display:flex;flex-direction:column;align-items:stretch;overflow-y:auto}.signup-modal-close{position:absolute;top:10px;right:18px;background:transparent;border:none;color:#b5c7e3;font-size:2rem;font-weight:700;cursor:pointer;z-index:10;transition:color .2s}.signup-modal-close:hover{color:#3b82f6}@media (max-width: 900px){.main-header .header-content,.main-footer .footer-content{padding:0 12px}.app-content{padding-top:70px;padding-bottom:70px}}@media (max-width: 600px){.signup-modal{align-items:stretch}.signup-modal-content{min-width:0;width:100vw;height:100vh;max-width:100vw;max-height:100vh;border-radius:0;padding:0}.signup-modal-close{top:12px;right:12px;font-size:2.2rem;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:#232b3ee6;border-radius:50%}}