:root{
  --max-width:1100px;
  --accent:#2b6cb0;
  --muted:#6b7280;
  --bg:#f7fafc;
  --card:#ffffff;
  --radius:10px;
  --shadow: 0 6px 18px rgba(23,23,23,0.08);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:#111827;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.container{
  max-width:var(--max-width);
  margin:0 auto;
  padding:1rem;
}

.site-header{
  background:linear-gradient(90deg, rgba(255,255,255,0.6), rgba(255,255,255,0.4));
  border-bottom:1px solid #e6eef6;
  position:sticky;
  top:0;
  z-index:100;
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{margin:0;font-size:1.25rem}
nav a{
  margin-left:1rem;
  text-decoration:none;
  color:var(--accent);
  font-weight:600;
}

.hero{
  background:linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0.8));
  padding:2rem;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  margin-top:1rem;
}

.info-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:1rem;
  margin-top:1rem;
}

.card{
  background:var(--card);
  padding:1.25rem;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.auth-container{
  display:flex;
  justify-content:center;
  align-items:flex-start;
  padding:2rem 1rem;
}
.auth-container .card{
  width:100%;
  max-width:420px;
}

label{display:block;margin-top:0.75rem;font-weight:600}
input[type="email"], input[type="password"], input[type="text"]{
  width:100%;
  padding:0.65rem;
  margin-top:0.25rem;
  border:1px solid #d1d5db;
  border-radius:8px;
  font-size:1rem;
}

.btn{
  display:inline-block;
  margin-top:1rem;
  padding:0.7rem 1rem;
  background:var(--accent);
  color:#fff;
  text-decoration:none;
  border-radius:8px;
  border:none;
  cursor:pointer;
  font-weight:700;
}

.muted{color:var(--muted);font-size:0.9rem;margin-top:0.5rem}

.site-footer{
  margin-top:2rem;
  padding:1rem 0;
  color:var(--muted);
  border-top:1px solid #e6eef6;
  text-align:center;
}

/* Dashboard stats */
.stats-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:1rem;
  margin-top:1rem;
}
.stat{background:#fbfdff;padding:1rem;border-radius:8px;border:1px solid #eef6ff}

/* Responsive tweaks */
@media (max-width:600px){
  .site-header .container{padding:0.5rem}
  nav a{margin-left:0.5rem;font-size:0.95rem}
  .hero{padding:1rem}
}