:root{--primary: #4ade80;--secondary: #3b82f6;--bg: #f8fafc;--card: #ffffff;--text: #1e293b;--text-light: #64748b;--danger: #ef4444}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.app-container{max-width:500px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;padding-bottom:80px}.app-header{padding:20px;display:flex;justify-content:space-between;align-items:center;background:#fffc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);position:sticky;top:0;z-index:100}.brand{display:flex;align-items:center;gap:10px}.logo-icon{background:#ecfdf5;padding:8px;border-radius:12px}.brand h1{font-size:1.2rem;margin:0;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.sync-badge{display:flex;align-items:center;gap:6px;font-size:.75rem;padding:4px 10px;border-radius:20px;background:#f1f5f9;color:var(--text-light);transition:all .3s}.sync-badge.syncing{color:var(--secondary);animation:pulse 1.5s infinite}.stat-card{background:var(--card);border-radius:24px;padding:20px;margin:15px;box-shadow:0 10px 25px -5px #0000000d;border:1px solid rgba(0,0,0,.02)}.main-card{background:linear-gradient(180deg,#fff,#f0fdf4)}.card-header{display:flex;align-items:center;gap:10px;margin-bottom:20px}.card-header h3{margin:0;flex:1;font-size:1rem}.chart-container{height:150px;margin-bottom:20px;display:flex;align-items:center;justify-content:center}.trend-svg{width:100%;height:100%;filter:drop-shadow(0 4px 6px rgba(74,222,128,.2))}.empty-chart{color:var(--text-light);font-size:.85rem;text-align:center}.input-group{display:flex;gap:10px}input,textarea{flex:1;padding:12px 16px;border-radius:12px;border:1px solid #e2e8f0;outline:none;font-size:1rem;transition:border-color .2s}input:focus,textarea:focus{border-color:var(--primary)}.btn-primary{background:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:12px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:8px}.btn-outline{background:#fff;border:1px solid var(--primary);color:var(--primary);padding:12px 20px;border-radius:12px;font-weight:600}.grid-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0 15px}.stat-card.mini{margin:0;display:flex;align-items:center;gap:12px;padding:15px}.mini-info .label{font-size:.75rem;color:var(--text-light);display:block}.mini-info .value{font-weight:700;font-size:1rem}.log-input-box{margin:15px;background:#fff;padding:15px;border-radius:20px;box-shadow:0 4px 12px #0000000d}.log-input-box textarea{width:100%;height:80px;border:none;resize:none;padding:0;margin-bottom:10px}.action-buttons{display:flex;gap:10px}.log-list{padding:0 15px}.log-item{background:#fff;padding:16px;border-radius:16px;margin-bottom:12px;border-left:4px solid var(--primary)}.log-type-tag{display:inline-flex;align-items:center;gap:4px;font-size:.7rem;background:#f1f5f9;padding:2px 8px;border-radius:4px;margin-bottom:8px}.ai-feedback{margin-top:12px;padding:10px;background:#f0fdf4;border-radius:10px;font-size:.85rem;color:#166534;display:flex;gap:8px}.ai-coach-view{padding:40px 20px;text-align:center}.avatar-circle{width:80px;height:80px;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:30px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 20px #4ade804d}.coach-actions{display:flex;flex-direction:column;gap:12px;margin-top:30px}.coach-btn{background:#fff;border:1px solid #e2e8f0;padding:16px;border-radius:16px;font-weight:600;transition:all .2s}.coach-btn:hover{background:#f8fafc;transform:translateY(-2px)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:70px;background:#ffffffe6;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);display:flex;justify-content:space-around;align-items:center;border-top:1px solid #f1f5f9;padding-bottom:env(safe-area-inset-bottom)}.bottom-nav button{background:none;border:none;display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-light);font-size:.7rem;transition:all .3s}.bottom-nav button.active{color:var(--primary)}.plus-icon{background:var(--primary);color:#fff;padding:8px;border-radius:15px;margin-top:-20px;box-shadow:0 4px 12px #4ade8066}.icon-green{color:var(--primary)}.icon-blue{color:var(--secondary)}.icon-gold{color:#eab308}.icon-red{color:var(--danger)}@keyframes pulse{0%{opacity:1}50%{opacity:.5}to{opacity:1}}.loading-screen{height:100vh;display:flex;align-items:center;justify-content:center;color:var(--text-light)}