* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: #1a1a2e;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2.5rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

nav .logo { font-size: 1.4rem; font-weight: 700; color: #667eea; }
nav .links a {
  text-decoration: none;
  color: #444;
  margin-left: 1.5rem;
  font-weight: 500;
  transition: color 0.2s;
}
nav .links a:hover { color: #667eea; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.hero h1 { font-size: 3rem; color: #fff; margin-bottom: 1rem; line-height: 1.2; }
.hero p { font-size: 1.2rem; color: rgba(255, 255, 255, 0.9); margin-bottom: 2.5rem; }

.card {
  background: #fff;
  border-radius: 18px;
  padding: 3rem 2.5rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.8rem;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform 0.15s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }

.btn-primary { background: #fff; color: #667eea; }
.btn-google {
  background: #fff;
  color: #444;
  border: 1px solid #ddd;
}
.btn-logout { background: #ef4444; color: #fff; }

.btn-google img { width: 20px; height: 20px; }

.profile { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.profile img.avatar {
  width: 96px; height: 96px;
  border-radius: 50%;
  border: 4px solid #667eea;
}
.profile h2 { font-size: 1.6rem; }
.profile .email { color: #777; }

.badge {
  display: inline-block;
  background: #e0e7ff;
  color: #667eea;
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
}