body{background-color:#f0f7ff;place-items:center;min-width:320px;min-height:100vh;margin:0;display:flex;overflow:hidden}#root{width:100%}:root{--ios-blue:#007aff;--ios-light-blue:#e3f2fd;--ios-bg:#f0f7ff;--ios-card:#ffffffb3;--ios-text:#1c1c1e;--ios-text-secondary:#8e8e93;--border-radius:20px}.app-container{width:100vw;height:100vh;padding:env(safe-area-inset-top) 20px 0;box-sizing:border-box;background-color:var(--ios-bg);color:var(--ios-text);flex-direction:column;display:flex;position:relative;overflow:hidden}.user-id-label{top:calc(env(safe-area-inset-top) + 10px);color:var(--ios-text-secondary);letter-spacing:.5px;font-size:10px;font-weight:600;position:absolute;right:20px}.ios-action-btn{background:var(--ios-blue);color:#fff;-webkit-tap-highlight-color:transparent;border:none;border-radius:15px;width:100%;margin-top:10px;padding:16px;font-size:17px;font-weight:600}.ios-action-btn:active{opacity:.8}.ios-picker-wrapper{justify-content:center;gap:20px;height:180px;margin-bottom:20px;display:flex;overflow:hidden}.ios-picker-col{align-items:center;gap:4px;display:flex}.ios-picker-scroll{scrollbar-width:none;scroll-snap-type:y mandatory;-ms-overflow-style:none;width:50px;height:100%;overflow-y:scroll}.ios-picker-scroll::-webkit-scrollbar{display:none}.ios-picker-item{height:44px;color:var(--ios-text-secondary);scroll-snap-align:center;justify-content:center;align-items:center;font-size:20px;transition:all .2s;display:flex}.ios-picker-item.active{color:var(--ios-blue);font-size:24px;font-weight:700}.ios-picker-spacer{height:68px}.ios-picker-label{color:var(--ios-text-secondary);font-size:15px;font-weight:600}.app-header{margin-top:40px;margin-bottom:20px}.academic-title{color:var(--ios-blue);margin:0;font-family:Times New Roman,Times,serif;font-size:32px;font-weight:500}.date-display{color:var(--ios-text-secondary);text-transform:uppercase;letter-spacing:1px;margin-top:4px;font-size:14px}.segmented-control{background:var(--ios-light-blue);border-radius:10px;margin-bottom:20px;padding:2px;display:flex}.segment-btn{color:var(--ios-text);background:0 0;border:none;border-radius:8px;flex:1;padding:8px 4px;font-size:13px;font-weight:500;transition:all .2s}.segment-btn.active{background:#fff;font-weight:600;box-shadow:0 2px 8px #0000001a}.timer-section{flex-direction:column;flex:1;justify-content:center;align-items:center;display:flex}.timer-wrapper{flex-direction:column;align-items:center;width:100%;display:flex}.timer-control-surface{cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;width:300px;height:300px;padding:0;display:flex}.timer-control-surface:active{transform:scale(.97)}.circular-timer-container{justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative}.timer-svg{width:100%;height:100%;position:absolute;top:0;left:0;transform:rotate(-90deg)}.timer-track{fill:none;stroke:var(--ios-light-blue);stroke-width:5px}.timer-progress{fill:none;stroke:var(--ios-blue);stroke-width:5px;transition:stroke-dashoffset .5s linear}.time-display-container{text-align:center;z-index:1}.time-string{color:var(--ios-text);margin-bottom:8px;font-family:Times New Roman,Times,serif;font-size:56px;font-weight:400}.timer-status-icon{color:var(--ios-text-secondary);opacity:.4;transition:all .3s}.timer-status-icon.active{color:#ff3b30;opacity:.8}.manual-log-btn{color:var(--ios-blue);cursor:pointer;background:0 0;border:none;margin-top:10px;padding:12px 24px;font-size:14px;font-weight:600}.progress-section{background:var(--ios-card);-webkit-backdrop-filter:blur(10px);border-radius:var(--border-radius);margin-bottom:20px;padding:16px;box-shadow:0 4px 15px #0000000d}.progress-labels{justify-content:space-between;margin-bottom:10px;display:flex}.progress-title{font-size:14px;font-weight:600}.progress-value{color:var(--ios-blue);font-size:14px;font-weight:700}.flat-progress-track{background:var(--ios-light-blue);border-radius:3px;height:6px;margin-bottom:10px;overflow:hidden}.flat-progress-fill{background:var(--ios-blue);height:100%;transition:width .5s cubic-bezier(.4,0,.2,1)}.today-total{color:var(--ios-text-secondary);font-size:12px}.today-total-row{justify-content:space-between;align-items:center;display:flex}.goal-label{color:var(--ios-blue);cursor:pointer;background:var(--ios-light-blue);border-radius:4px;padding:2px 6px;font-size:12px;font-weight:600}.goal-input{border:1px solid var(--ios-blue);border-radius:4px;outline:none;width:60px;padding:2px 4px;font-size:14px}.history-section{padding-bottom:env(safe-area-inset-bottom);margin-top:auto}.chart-container{margin-bottom:0}.ios-popup-overlay{-webkit-backdrop-filter:blur(4px);z-index:1000;background:#00000026;justify-content:center;align-items:flex-end;animation:.2s ease-out fadeIn;display:flex;position:fixed;inset:0}.ios-popup-card{width:100%;max-width:400px;padding:24px;padding-bottom:calc(24px + env(safe-area-inset-bottom));background:#fff;border-radius:30px 30px 0 0;animation:.3s cubic-bezier(.4,0,.2,1) slideUpPopup;box-shadow:0 -10px 40px #0000001a}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUpPopup{0%{transform:translateY(100%)}to{transform:translateY(0)}}.popup-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.popup-header h3{color:var(--ios-blue);margin:0;font-family:Times New Roman,Times,serif;font-size:24px}.close-popup{background:var(--ios-light-blue);cursor:pointer;border:none;border-radius:16px;justify-content:center;align-items:center;width:32px;height:32px;padding:0;display:flex}.close-icon{color:var(--ios-blue);margin-top:-2px;font-size:24px;line-height:1;display:block}.popup-body{flex-direction:column;gap:16px;display:flex}.popup-total-row{justify-content:space-between;font-size:18px;font-weight:700;display:flex}.popup-divider{background:var(--ios-light-blue);height:1px;margin:4px 0}.popup-cat-row{justify-content:space-between;font-size:16px;display:flex}.cat-label{color:var(--ios-text-secondary)}.cat-val{font-weight:500}