/* Global */
body {
  font-family: 'Inter', 'Segoe UI', sans-serif;
  margin: 0;
  background: #f4f6f9;
  color: #333;
  transition: background 0.3s, color 0.3s;
}

h2, h3, h4 {
  margin: 0 0 10px;
  font-weight: 600;
}

p {
  margin: 5px 0;
}

/* Layout */
.dashboard-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: #1e293b;
  color: #fff;
  padding: 20px;
}

.sidebar .profile-card {
  text-align: center;
  margin-bottom: 20px;
}

.sidebar .avatar {
  width: 80px;
  border-radius: 50%;
  margin-bottom: 10px;
}

.sidebar .badge {
  display: inline-block;
  background: #10b981;
  padding: 4px 8px;
  border-radius: 5px;
  font-size: 12px;
}

.sidebar .plan {
  font-size: 14px;
  color: #cbd5e1;
}

.sidebar-nav a {
  display: block;
  padding: 12px;
  color: #cbd5e1;
  text-decoration: none;
  border-radius: 6px;
  margin-bottom: 8px;
  transition: background 0.3s;
}

.sidebar-nav a.active,
.sidebar-nav a:hover {
  background: #334155;
  color: #fff;
}

/* Main Content */
.main-content {
  flex: 1;
  padding: 30px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 25px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: background 0.3s, color 0.3s;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff;
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(37,99,235,0.3);
}

.btn-secondary {
  background: #64748b;
  color: #fff;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.3s;
}

.btn-secondary:hover {
  background: #475569;
}

/* Progress Bar */
.progress-bar {
  background: #e5e7eb;
  border-radius: 6px;
  height: 8px;
  margin: 8px 0;
}

.progress-bar span {
  display: block;
  height: 100%;
  background: #2563eb;
  border-radius: 6px;
}

/* Plans */
.plan-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.plan-card {
  flex: 1;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  padding: 20px;
  background: #fff;
  transition: transform 0.2s, box-shadow 0.2s;
}

.plan-card:hover {
  transform: translateY(-3px);
  box-shadow