:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#07101a;color:#eff4f1;--accent:#68d6c8;--accent2:#9ee9df;--panel:#101923;--line:rgba(104,214,200,.26);--ivory:#eff4f1;--champagne:#c9ad72}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 50% -5%,rgba(41,184,167,.12),transparent 28%),linear-gradient(#0b1420,#05090f);padding-bottom:env(safe-area-inset-bottom)}button,input{font:inherit}.app-shell{width:min(760px,100%);min-height:100vh;margin:auto;padding:max(18px,env(safe-area-inset-top)) 18px 96px}.topbar{display:grid;grid-template-columns:52px 1fr 52px;align-items:center;gap:12px}.brand{text-align:center;display:grid}.brand strong{font-size:clamp(28px,7vw,46px);letter-spacing:.12em;color:var(--ivory);font-weight:600}.brand span{font-size:12px;color:#b7c6c2}.icon-button{width:48px;height:48px;border:1px solid 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