:root{--primary-color: #ff6b6b;--secondary-color: #4ecdc4;--accent-color: #45b7d1;--dark-bg: #1a1a1a;--light-bg: #f8f9fa;--text-dark: #2c3e50;--text-light: #7f8c8d;--border-color: #e0e0e0;--success-color: #2ecc71;--danger-color: #e74c3c}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;color:var(--text-dark)}.App{display:flex;flex-direction:column;min-height:100vh}.header{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:2rem 1rem;text-align:center;box-shadow:0 4px 6px #0000001a}.header-content h1{font-size:2.5rem;margin-bottom:.5rem;font-weight:700}.header-content p{font-size:1.1rem;opacity:.9}.nav-tabs{display:flex;justify-content:center;gap:1rem;padding:1.5rem;background:white;box-shadow:0 2px 4px #0000000d;flex-wrap:wrap}.nav-tab{padding:.75rem 1.5rem;border:2px solid var(--border-color);background:white;color:var(--text-dark);border-radius:25px;cursor:pointer;font-size:1rem;font-weight:500;transition:all .3s ease}.nav-tab:hover{border-color:var(--primary-color);color:var(--primary-color)}.nav-tab.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.main-content{flex:1;padding:2rem 1rem;max-width:1200px;width:100%;margin:0 auto}.form-container{background:white;padding:2rem;border-radius:12px;box-shadow:0 4px 12px #0000001a}.form-container h2{margin-bottom:1.5rem;color:var(--text-dark);font-size:1.8rem}.workout-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.form-group{display:flex;flex-direction:column}.form-group label{margin-bottom:.5rem;font-weight:600;color:var(--text-dark)}.form-group input,.form-group select,.form-group textarea{padding:.75rem;border:2px solid var(--border-color);border-radius:8px;font-size:1rem;font-family:inherit;transition:border-color .3s ease}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color)}.form-group textarea{resize:vertical}.btn-primary{grid-column:1 / -1;padding:1rem;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 12px #667eea66}.btn-primary:active{transform:translateY(0)}.list-container{background:white;padding:2rem;border-radius:12px;box-shadow:0 4px 12px #0000001a}.list-container h2{margin-bottom:1.5rem;color:var(--text-dark);font-size:1.8rem}.workout-list{display:grid;gap:1.5rem}.workout-card{border:2px solid var(--border-color);border-radius:12px;padding:1.5rem;transition:all .3s ease}.workout-card:hover{border-color:var(--primary-color);box-shadow:0 4px 12px #ff6b6b26;transform:translateY(-2px)}.workout-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;flex-wrap:wrap;gap:1rem}.workout-header h3{display:flex;align-items:center;gap:.5rem;font-size:1.3rem;color:var(--text-dark)}.emoji{font-size:1.5rem}.workout-date{color:var(--text-light);font-size:.9rem}.workout-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:1rem}.detail{display:flex;justify-content:space-between;padding:.75rem;background:var(--light-bg);border-radius:8px}.detail .label{font-weight:600;color:var(--text-dark)}.detail .value{color:var(--primary-color);font-weight:600}.workout-notes{background:var(--light-bg);padding:1rem;border-radius:8px;margin-bottom:1rem;border-left:4px solid var(--secondary-color)}.workout-notes p{color:var(--text-dark);line-height:1.6}.btn-delete{width:100%;padding:.75rem;background:var(--danger-color);color:#fff;border:none;border-radius:8px;cursor:pointer;font-weight:600;transition:all .3s ease}.btn-delete:hover{background:#c0392b;transform:translateY(-2px)}.dashboard-container{background:white;padding:2rem;border-radius:12px;box-shadow:0 4px 12px #0000001a}.dashboard-container h2{margin-bottom:2rem;color:var(--text-dark);font-size:1.8rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:1.5rem;border-radius:12px;text-align:center;box-shadow:0 4px 12px #667eea4d;transition:all .3s ease;position:relative;overflow:hidden}.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 16px #667eea66}.stat-card h3{font-size:.9rem;margin-bottom:.5rem;opacity:.9;text-transform:uppercase;letter-spacing:1px}.stat-value{font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.stat-emoji{font-size:2rem;display:block;margin-bottom:.5rem}.stat-unit{font-size:.85rem;opacity:.8}.breakdown-container{background:var(--light-bg);padding:1.5rem;border-radius:12px}.breakdown-container h3{margin-bottom:1.5rem;color:var(--text-dark);font-size:1.3rem}.breakdown-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.breakdown-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:white;border-radius:8px;border-left:4px solid var(--primary-color)}.breakdown-emoji{font-size:1.5rem}.breakdown-type{flex:1;font-weight:600;color:var(--text-dark)}.breakdown-count{color:var(--primary-color);font-weight:600}.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-light);font-size:1.1rem}@media (max-width: 768px){.header-content h1{font-size:2rem}.main-content{padding:1rem}.form-container,.list-container,.dashboard-container{padding:1.5rem}.workout-form{grid-template-columns:1fr}.btn-primary{grid-column:1}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.stat-value{font-size:2rem}.nav-tabs{padding:1rem;gap:.5rem}.nav-tab{padding:.6rem 1rem;font-size:.9rem}}@media (max-width: 480px){.header-content h1{font-size:1.5rem}.header-content p{font-size:.9rem}.stats-grid{grid-template-columns:1fr}.workout-header{flex-direction:column;align-items:flex-start}.nav-tabs{flex-direction:column}.nav-tab{width:100%}}html,body{margin:0;padding:0;width:100%;height:100%}#root{width:100%;height:100%}