:root{--primary: #10b981;--primary-dark: #059669;--bg: #f8fafc;--card: #ffffff;--text-main: #1e293b;--text-sub: #64748b;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1)}.app-container{max-width:480px;margin:0 auto;min-height:100vh;background-color:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--text-main);display:flex;flex-direction:column}.app-header{padding:16px 20px;background:var(--card);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e2e8f0}.logo-section{display:flex;align-items:center;gap:10px}.logo-icon{background:var(--primary);padding:6px;border-radius:10px;display:flex}.logo-section h1{font-size:18px;font-weight:700;margin:0}.sync-badge{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--text-sub);background:#f1f5f9;padding:4px 8px;border-radius:20px;transition:all .3s}.sync-badge.syncing{color:var(--primary);background:#ecfdf5}.app-nav{display:flex;background:var(--card);padding:8px;gap:8px;position:sticky;top:0;z-index:10}.app-nav button{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px;border:none;background:none;color:var(--text-sub);border-radius:12px;cursor:pointer;transition:all .2s}.app-nav button.active{background:#ecfdf5;color:var(--primary)}.app-content{flex:1;padding:20px}.view-container{display:flex;flex-direction:column;gap:20px}.bmi-card{padding:24px;border-radius:24px;color:#fff;display:flex;justify-content:space-between;align-items:center;box-shadow:0 10px 15px -3px #10b9814d}.bmi-info{display:flex;flex-direction:column}.bmi-info .label{font-size:14px;opacity:.9}.bmi-info .value{font-size:42px;font-weight:800;line-height:1;margin:4px 0}.bmi-info .category{background:#fff3;padding:2px 10px;border-radius:20px;font-size:12px;width:fit-content}.circle-bg{fill:none;stroke:#fff3;stroke-width:3.8}.circle{fill:none;stroke:#fff;stroke-width:3.8;stroke-linecap:round;transition:stroke-dasharray .5s ease}.card{background:var(--card);border-radius:20px;padding:20px;box-shadow:var(--shadow)}.card-header{display:flex;align-items:center;gap:8px;margin-bottom:16px}.card-header h3{font-size:16px;margin:0;flex:1}.goal-stats{display:flex;justify-content:space-between;margin-bottom:16px}.stat{display:flex;flex-direction:column;align-items:center}.stat span{font-size:12px;color:var(--text-sub)}.stat strong{font-size:18px}.stat.highlight strong{color:var(--primary);font-size:22px}.progress-bar-container{height:8px;background:#f1f5f9;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:4px;transition:width 1s cubic-bezier(.34,1.56,.64,1)}.history-list{display:flex;flex-direction:column;gap:12px;max-height:200px;overflow-y:auto}.history-item{display:grid;grid-template-columns:100px 80px 1fr;font-size:14px;padding-bottom:8px;border-bottom:1px solid #f1f5f9}.history-item .date{color:var(--text-sub)}.history-item .weight{font-weight:600;color:var(--primary)}.history-item .note{color:var(--text-sub);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.add-btn{background:var(--primary);color:#fff;border:none;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer}.ai-plan-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.generate-btn{background:var(--primary);color:#fff;border:none;padding:8px 16px;border-radius:12px;display:flex;align-items:center;gap:6px;font-size:14px;cursor:pointer}.generate-btn.loading{opacity:.7;cursor:not-allowed}.plan-grid{display:flex;flex-direction:column;gap:16px}.plan-section{background:#fff;padding:16px;border-radius:16px;border-left:4px solid var(--primary);box-shadow:var(--shadow)}.plan-section h4{margin:0 0 8px;font-size:15px}.plan-section p{margin:0;font-size:14px;color:var(--text-sub);line-height:1.6}.input-group{margin-bottom:16px}.input-group label{display:block;font-size:14px;color:var(--text-sub);margin-bottom:6px}.input-group input{width:100%;padding:12px;border:1px solid #e2e8f0;border-radius:12px;font-size:16px;box-sizing:border-box}.save-profile-btn{width:100%;padding:14px;background:var(--primary);color:#fff;border:none;border-radius:12px;font-weight:600;cursor:pointer}.reset-btn{width:100%;padding:10px;background:none;border:1px solid #fee2e2;color:#ef4444;border-radius:12px;font-size:13px;margin-top:40px;cursor:pointer}.spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}