:root{--deep-black:#0b0e11;--charcoal:#141820;--bio-teal:#00c2b3;--deep-teal:#006d77;--warm-gold:#d9a441;--oxygen-blue:#4da3ff;--clinical-white:#fafafa;--soft-clay:#f2ede8;--text-primary:#fff;--text-secondary:hsla(0,0%,100%,.7);--text-muted:hsla(0,0%,100%,.5);--glass-bg:hsla(0,0%,100%,.05);--glass-border:hsla(0,0%,100%,.1);--glass-blur:blur(20px);--font-heading:"Inter",-apple-system,BlinkMacSystemFont,sans-serif;--font-body:"Roboto",system-ui,sans-serif;--section-padding:clamp(60px,10vh,120px);--container-width:min(1400px,90vw);--ease-smooth:cubic-bezier(0.4,0,0.2,1);--ease-heartbeat:cubic-bezier(0.25,0.46,0.45,0.94);--duration-slow:1.2s;--duration-medium:0.6s;--duration-fast:0.3s}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-body);background:var(--deep-black);color:var(--text-primary);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:500;line-height:1.2;letter-spacing:-.02em}h1{font-size:clamp(2.5rem,6vw,5rem);font-weight:600}h2{font-size:clamp(2rem,4vw,3.5rem)}h3{font-size:clamp(1.5rem,3vw,2rem)}p{color:var(--text-secondary);max-width:65ch}.container{width:var(--container-width);margin:0 auto;padding:0 20px}.section{min-height:100vh;padding:var(--section-padding) 0;display:flex;flex-direction:column;justify-content:center;position:relative}.glass-card{backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:16px;padding:24px}.glass-card,.glass-pill{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur)}.glass-pill{backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);padding:12px 24px}.btn,.glass-pill{border-radius:100px}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;font-family:var(--font-heading);font-weight:500;font-size:.95rem;cursor:pointer;transition:all var(--duration-fast) var(--ease-smooth);border:none;text-decoration:none}.btn-primary{background:var(--bio-teal);color:var(--deep-black)}.btn-primary:hover{background:#00dac9;box-shadow:0 0 30px rgba(0,194,179,.4);transform:translateY(-2px)}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--glass-border)}.btn-secondary:hover{border-color:var(--bio-teal);color:var(--bio-teal)}@keyframes pulse-glow{0%,to{box-shadow:0 0 20px rgba(0,194,179,.2)}50%{box-shadow:0 0 40px rgba(0,194,179,.4)}}@keyframes breathe{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.05);opacity:.8}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes ecg-line{0%{stroke-dashoffset:1000}to{stroke-dashoffset:0}}@keyframes ripple{0%{transform:scale(.5);opacity:1}to{transform:scale(2.5);opacity:0}}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--deep-black)}::-webkit-scrollbar-thumb{background:var(--charcoal);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--bio-teal)}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}@media (max-width:768px){:root{--section-padding:clamp(40px,8vh,80px)}.container{padding:0 16px}}