* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Arial', sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: #333;
}
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.header { text-align: center; color: white; margin-bottom: 30px; }
.header h1 { font-size: 2.5em; margin-bottom: 10px; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
.tabs { display: flex; justify-content: center; margin-bottom: 30px; flex-wrap: wrap; }
.tab-btn { padding: 12px 24px; margin: 0 5px; background: rgba(255,255,255,0.2); border: none; border-radius: 25px; color: white; cursor: pointer; transition: all 0.3s; font-size: 16px; }
.tab-btn:hover { background: rgba(255,255,255,0.3); }
.tab-btn.active { background: white; color: #667eea; }
.tab-content { display: none; background: white; border-radius: 15px; padding: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.tab-content.active { display: block; animation: fadeIn 0.5s ease-in; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: bold; color: #555; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px; border: 2px solid #ddd; border-radius: 8px; font-size: 16px; }
.btn { padding: 12px 24px; background: #667eea; color: white; border: none; border-radius: 8px; cursor: pointer; font-size: 16px; transition: background 0.3s; }
.btn:hover { background: #5a6fd8; }
.btn-success { background: #28a745; }
.btn-warning { background: #ffc107; color: #212529; }
.btn-danger { background: #dc3545; }
.meal-plan { background: #f8f9fa; padding: 20px; border-radius: 10px; margin: 20px 0; }
.meal-item { background: white; padding: 15px; margin: 10px 0; border-radius: 8px; border-left: 4px solid #667eea; }
.water-tracker { text-align: center; margin: 20px 0; }
.water-progress { width: 100%; height: 20px; background: #e9ecef; border-radius: 10px; overflow: hidden; margin: 10px 0; }
.water-fill { height: 100%; background: linear-gradient(90deg, #667eea, #764ba2); transition: width 0.3s; }
.training-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin: 20px 0; }
.training-card { background: white; padding: 20px; border-radius: 10px; border: 1px solid #eee; text-align: center; transition: transform 0.3s; }
.training-card:hover { transform: translateY(-5px); box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
.training-card h3 { color: #667eea; margin-bottom: 10px; }
.progress-section { background: #f8f9fa; padding: 20px; border-radius: 10px; margin: 20px 0; }
.motivational-text { background: linear-gradient(135deg, #667eea, #764ba2); color: white; padding: 20px; border-radius: 10px; text-align: center; margin: 20px 0; }
.reward-system { background: #fff3cd; border: 1px solid #ffeaa7; padding: 20px; border-radius: 10px; margin: 20px 0; }
.daily-checklist { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin: 20px 0; }
.check-item { display: flex; align-items: center; padding: 10px; background: #f8f9fa; border-radius: 8px; }
.check-item input[type="checkbox"] { margin-right: 10px; }
.notification-badge { position: fixed; top: 20px; right: 20px; background: #28a745; color: white; padding: 15px 20px; border-radius: 8px; z-index: 1000; display: none; }
.stats-display { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; margin: 20px 0; }
.stat-card { background: white; padding: 20px; border-radius: 10px; text-align: center; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.stat-number { font-size: 2em; font-weight: bold; color: #667eea; }
.plan-item { background: white; padding: 15px; margin: 10px 0; border-radius: 8px; border-left: 4px solid #28a745; }
.plan-actions { display: flex; gap: 10px; margin-top: 10px; }
.plan-form { background: #f8f9fa; padding: 20px; border-radius: 10px; margin-bottom: 20px; }
.plan-list { margin-top: 20px; }