:root{--bg:#f5f7fb;--card:#ffffff;--muted:#6b7280;--accent:#2563eb}
*{box-sizing:border-box}
body{font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial; margin:0; background:var(--bg); color:#111}
.centered{height:100vh; display:flex; align-items:center; justify-content:center}
.card{background:var(--card); padding:36px; border-radius:16px; box-shadow:0 8px 30px rgba(17,24,39,0.08); text-align:center; width:320px}
.btn{display:inline-block; margin-top:16px; padding:10px 16px; border-radius:10px; text-decoration:none; font-weight:600; border:2px solid transparent}
.btn{background:linear-gradient(90deg,rgba(37,99,235,0.1),rgba(37,99,235,0.08)); color:var(--accent); border-color:rgba(37,99,235,0.12)}
.site-header{background:transparent; padding:16px 0}
.container{max-width:1000px; margin:0 auto; padding:0 20px}
.site-header .container{display:flex; justify-content:space-between; align-items:center}
.blank-page{min-height:70vh; display:flex; align-items:center; justify-content:center}
.small{padding:6px 10px; border-radius:8px}