:root{--ink:#18352d;--paper:#f7f4ec;--cream:#fffdf7;--line:#ded9cc;--orange:#ee6b45;--green:#246b52;--blue:#4d75a8;--muted:#74766e}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif}button,a{font:inherit}button{color:inherit}.trip-shell{background:radial-gradient(circle at 83% 8%, #ffd8b8 0, transparent 24rem), var(--paper);min-height:100vh}.topbar{z-index:20;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f7f4ece0;border-bottom:1px solid #18352d24;grid-template-columns:1fr auto 1fr;align-items:center;height:78px;padding:0 clamp(22px,5vw,76px);display:grid;position:sticky;top:0}.brand{color:var(--ink);align-items:center;gap:12px;width:max-content;text-decoration:none;display:inline-flex}.brand-mark{background:var(--ink);color:#fff;letter-spacing:-.04em;border-radius:50% 50% 45% 55%;place-items:center;width:38px;height:38px;font-weight:800;display:grid}.brand 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0;font-size:12px}.auth-card small{color:var(--muted);margin-top:22px;font-size:10px;line-height:1.5;display:block}.avatar{border:0}