:root {
  --primary: #5865F2;
  --primary-dark: #4752C4;
  --secondary: #2C2F33;
  --text: #23272A;
  --light: #FFFFFF;
  --error: #ED4245;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: linear-gradient(135deg, #1a1f2b 0%, #363b4a 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.container {
  width: 100%;
  max-width: 500px;
}

.card {
  background: var(--light);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.card.error {
  background: #ffebee;
}

.logo {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  display: block;
}

h1 {
  color: var(--text);
  margin-bottom: 15px;
  font-size: 28px;
}

p {
  color: #666;
  margin-bottom: 25px;
  line-height: 1.6;
}

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  padding: 14px 25px;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 16px;
  margin: 10px auto;
}

.btn img {
  width: 24px;
  height: 24px;
}

.btn:hover {
  background: var(--primary-dark);
  transform: scale(1.03);
}

.btn.secondary {
  background: var(--secondary);
}

.btn.secondary:hover {
  background: #23272A;
}

.user-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
}

.avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid var(--primary);
  object-fit: cover;
}

.user-details {
  text-align: center;
}

.username {
  font-size: 24px;
  font-weight: bold;
  color: var(--text);
}

.user-id {
  color: #666;
  font-size: 16px;
  margin: 5px 0;
}

.user-email {
  color: var(--primary);
  font-weight: 500;
  margin: 10px 0;
}

.actions {
  margin-top: 25px;
  display: flex;
  justify-content: center;
}

.loading {
  padding: 30px;
  font-size: 18px;
  color: #666;
}

.hidden {
  display: none;
}