:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #667085;
  --brand: #2563eb;
  --brand-dark: #1d4ed8;
  --border: #e4e7ec;
  --shadow: 0 18px 45px rgba(23, 32, 51, .08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; }
.login-page {
  display: grid;
  place-items: center;
  padding: 24px;
  background: radial-gradient(circle at top, #dbeafe 0, #f5f7fb 42%, #eef2ff 100%);
}
.login-card, .hero-card {
  width: min(100%, 760px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  padding: 36px;
}
.login-card { max-width: 430px; text-align: center; }
.brand-mark, .topbar-logo {
  display: inline-grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
  background: var(--brand);
}
.brand-mark { width: 64px; height: 64px; border-radius: 20px; font-size: 22px; }
.topbar-logo { width: 34px; height: 34px; border-radius: 11px; font-size: 13px; }
h1 { margin: 18px 0 10px; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; }
p { margin: 0; color: var(--muted); line-height: 1.6; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 24px;
  padding: 13px 20px;
  border-radius: 14px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}
.button:hover { background: var(--brand-dark); }
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 14px 28px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(14px);
}
.topbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  text-decoration: none;
}
.topbar-nav { display: flex; gap: 8px; margin-left: 18px; }
.topbar-nav a, .topbar-user a {
  padding: 9px 12px;
  border-radius: 12px;
  text-decoration: none;
  color: var(--muted);
}
.topbar-nav a.active, .topbar-nav a:hover, .topbar-user a:hover { background: #eff6ff; color: var(--brand); }
.topbar-user { margin-left: auto; display: flex; align-items: center; gap: 10px; color: var(--muted); }
.dashboard-shell { width: min(100%, 1100px); margin: 0 auto; padding: 42px 24px; }
.eyebrow { color: var(--brand); font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; }
@media (max-width: 720px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .topbar-nav { margin-left: 0; }
  .topbar-user { margin-left: 0; }
  .login-card, .hero-card { padding: 26px; border-radius: 22px; }
}