* {
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #1e293b, #020617);
  color: #e5e7eb;
}

a {
  color: #6366f1;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 40px;
}

.card {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 20px 40px rgba(0,0,0,.5);
}

h1, h2 {
  margin-top: 0;
}

input, button {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: #020617;
  color: #fff;
  font-size: 15px;
}

input:focus {
  outline: none;
  border-color: #6366f1;
}

button {
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  border: none;
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  filter: brightness(1.1);
}

.sidebar {
  width: 260px;
  background: rgba(2,6,23,0.9);
  border-right: 1px solid rgba(148,163,184,.15);
  padding: 30px;
  position: fixed;
  top: 0;
  bottom: 0;
}

.sidebar h2 {
  font-size: 18px;
  margin-bottom: 30px;
}

.sidebar a {
  display: block;
  padding: 12px;
  border-radius: 10px;
  color: #c7d2fe;
  margin-bottom: 8px;
}

.sidebar a:hover {
  background: rgba(99,102,241,.15);
}

.main {
  margin-left: 260px;
  padding: 40px;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(34,197,94,.15);
  color: #22c55e;
  font-size: 12px;
}