:root{--teal: #00f2c3;--dark-bg: #0a1114;--panel-bg: #162226;--text-muted: #8b949e}.dark-theme{--bg: var(--dark-bg);--fg: white;--panel: var(--panel-bg);background-color:var(--dark-bg);color:#fff}.light-theme{--bg: #f0f4f4;--fg: #111;--panel: #fff;background-color:#f0f4f4;color:#111}.light-theme .top-nav{background:#f0f4f4e6;border-bottom-color:#00f2c34d}.light-theme .panel{background:#fff;border-color:#00000014}.light-theme .nav-link{color:#555}.light-theme .nav-link:hover,.light-theme .nav-link.active{color:var(--teal)}*{margin:0;padding:0;box-sizing:border-box}body,html{width:100%;min-height:100vh;background-color:var(--dark-bg);color:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;overflow-x:hidden}.dashboard-container{width:100vw;min-height:100vh;display:flex;flex-direction:column}.top-nav{position:fixed;top:0;width:100%;display:flex;justify-content:space-between;align-items:center;padding:1rem 3rem;background:#0a1114cc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:100;border-bottom:1px solid rgba(0,242,195,.1)}.nav-brand-container{display:flex;align-items:center;gap:1rem}.brand-svg{height:50px;width:auto;fill:var(--teal)}.brand-text{font-weight:800;font-size:1.2rem;letter-spacing:1px}.tagline-dash{color:var(--teal);margin:0 .5rem}.nav-menu{display:flex;gap:3rem;list-style:none}.nav-link{background:none;border:none;color:var(--text-muted);font-weight:700;font-size:1rem;cursor:pointer;transition:color .3s ease;letter-spacing:1px;text-decoration:none}.nav-link:hover,.nav-link.active{color:var(--teal)}.xp-display{font-weight:700;color:var(--teal);border:1px solid var(--teal);padding:.5rem 1rem;border-radius:4px}.main-content{flex:1;padding-top:100px;padding-left:3rem;padding-right:3rem;width:100%}.module-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;width:100%}.panel{background:var(--panel-bg);border-radius:12px;padding:2rem;border:1px solid rgba(255,255,255,.05)}.vitals-monitor{grid-column:span 2}.ecg-screen{height:200px;background:#000;border:2px solid #333;position:relative;overflow:hidden;margin-bottom:1rem}.ecg-line-animated{position:absolute;top:50%;left:0;width:200%;height:2px;background:var(--teal);box-shadow:0 0 10px var(--teal);animation:scrollECG 4s linear infinite}@keyframes scrollECG{0%{transform:translate(0)}to{transform:translate(-50%)}}.btn-teal{background:var(--teal);color:var(--dark-bg);border:none;padding:1rem 2rem;font-weight:900;border-radius:6px;cursor:pointer;width:100%;font-size:1.1rem;transition:transform .2s}.btn-teal:hover{transform:scale(1.02)}.store-card{display:flex;flex-direction:column;justify-content:space-between;min-height:250px}.price-tag{font-size:1.5rem;color:var(--teal);font-weight:700;margin:1rem 0}.theme-toggle{background:none;border:1px solid rgba(0,242,195,.3);border-radius:6px;padding:.3rem .6rem;font-size:1.1rem;cursor:pointer;transition:border-color .2s}.theme-toggle:hover{border-color:var(--teal)}.splash-page{position:relative;width:100vw;min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:#051110;overflow:hidden}.ecg-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;-webkit-user-select:none;user-select:none}.ecg-grid{position:absolute;top:0;right:0;bottom:0;left:0;background-image:repeating-linear-gradient(0deg,transparent,transparent 39px,rgba(0,242,195,.06) 39px,rgba(0,242,195,.06) 40px),repeating-linear-gradient(90deg,transparent,transparent 39px,rgba(0,242,195,.06) 39px,rgba(0,242,195,.06) 40px)}.ecg-sweep-track{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden}.ecg-sweep-line{position:absolute;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,transparent 0%,rgba(0,242,195,0) 30%,rgba(0,242,195,.6) 50%,rgba(0,242,195,0) 70%,transparent 100%);box-shadow:0 0 18px 6px #00f2c340;animation:ecgScan 5s linear infinite}@keyframes ecgScan{0%{left:-2px}to{left:100%}}.ecg-watermark{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:85vw;max-width:1100px;opacity:.04;filter:blur(.5px)}.splash-content{position:relative;z-index:1;text-align:center;padding:2rem;max-width:680px;display:flex;flex-direction:column;align-items:center;gap:1.2rem}.splash-logo{width:min(260px,60vw);height:auto;opacity:.9;filter:drop-shadow(0 0 24px rgba(0,242,195,.45))}.splash-brand{font-size:.8rem;font-weight:800;letter-spacing:5px;text-transform:uppercase;color:var(--text-muted);margin:0}.splash-dash{color:var(--teal);margin:0 .4rem}.splash-headline{font-size:clamp(2.8rem,9vw,5.5rem);font-weight:900;letter-spacing:-1px;line-height:1;color:var(--teal);text-shadow:0 0 30px rgba(0,242,195,.5),0 0 80px rgba(0,242,195,.2);margin:0}.splash-sub{font-size:.95rem;color:var(--text-muted);line-height:1.9;margin:0}.splash-url{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:3px;color:var(--teal);border:1px solid rgba(0,242,195,.35);border-radius:4px;padding:.45rem 1.1rem;text-transform:uppercase}