:root{--navy:#102a43;--blue:#1769aa;--sky:#eaf4fb;--ink:#18212b;--muted:#65758b;--line:#dce5ed;--white:#fff}*{box-sizing:border-box}body{margin:0;background:#f6f8fa;color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}header{height:76px;padding:0 max(24px,calc((100vw - 1180px)/2));background:var(--white);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.brand{font-size:1.28rem;color:var(--navy);text-decoration:none;letter-spacing:-.03em}.brand strong{color:var(--blue)}main{max-width:1180px;margin:0 auto;padding:72px 24px;min-height:calc(100vh - 140px)}section{max-width:900px}.welcome{padding:48px 0}.eyebrow{display:block;color:var(--blue);font-weight:750;text-transform:uppercase;letter-spacing:.1em;font-size:.75rem;margin-bottom:12px}h1{font-size:clamp(2.3rem,6vw,4.7rem);line-height:1.03;letter-spacing:-.055em;color:var(--navy);margin:0 0 24px;max-width:900px}h2{color:var(--navy);margin-top:0}.welcome p,.muted{color:var(--muted);font-size:1.12rem;max-width:650px}.button{display:inline-flex;margin-top:22px;background:var(--blue);color:white;padding:13px 20px;border-radius:9px;text-decoration:none;font-weight:700;box-shadow:0 8px 24px rgba(23,105,170,.18)}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:40px}.cards article{background:white;border:1px solid var(--line);border-radius:14px;padding:26px;box-shadow:0 8px 30px rgba(16,42,67,.045)}.tag{display:inline-block;background:var(--sky);color:var(--blue);border-radius:999px;padding:5px 10px;font-size:.78rem;font-weight:700}.profile{display:flex;gap:10px;align-items:center;font-size:.9rem}.profile img,.avatar-fallback{width:36px;height:36px;border-radius:50%;object-fit:cover;background:var(--blue);color:white;display:grid;place-items:center;font-weight:700}.profile form{margin:0}.profile button{border:0;background:transparent;color:var(--muted);cursor:pointer}footer{border-top:1px solid var(--line);padding:22px;text-align:center;color:var(--muted);font-size:.82rem}@media(max-width:680px){header{height:auto;padding:16px 20px;align-items:flex-start}.profile{flex-wrap:wrap;justify-content:flex-end}.profile>span:not(.avatar-fallback){display:none}main{padding:48px 20px}.cards{grid-template-columns:1fr}h1{font-size:2.65rem}}