:root{--bg:#07101a;--muted:#9fb0c9;--text:#e9f1ff;--accent1:#6d5dfc;--accent2:#00d4ff;--glass: rgba(255,255,255,.03);--card:#0f1720;--radius:14px}*{box-sizing:border-box}html,body{height:100%;margin:0;font-family:Inter,Segoe UI,Roboto,system-ui,-apple-system;background:radial-gradient(800px 400px at 10% 10%,rgba(13,30,57,.15),transparent),var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.shell{display:flex;height:100vh;overflow:hidden}.sidebar{width:84px;background:linear-gradient(180deg,#ffffff05,#0000000f);border-right:1px solid rgba(255,255,255,.03);display:flex;flex-direction:column;align-items:center;padding:18px 8px;gap:16px}.brand{display:flex;flex-direction:column;align-items:center;gap:6px}.logo{font-size:20px}.appname{font-size:12px;color:var(--muted)}.nav{display:flex;flex-direction:column;gap:8px;margin-top:6px}.nav-btn{width:56px;height:56px;border-radius:12px;border:none;background:transparent;color:var(--muted);font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .18s}.nav-btn.active{background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;box-shadow:0 8px 30px #2d3c6e2e;transform:translateY(-2px)}.sidebar-footer{margin-top:auto;display:flex;flex-direction:column;gap:8px;align-items:center}.window-btn{font-weight:1000;border:none;background:transparent;color:var(--muted);cursor:pointer}.window-btn:hover{background:#ffffff05}.window-btn.danger:hover{background:linear-gradient(135deg,#ff6b84,#ff3a5b);color:#fff}.main{flex:1;padding:18px 22px;display:flex;flex-direction:column;gap:18px;overflow:auto}.topbar{display:flex;justify-content:space-between;align-items:center;padding:6px 8px}.title{font-size:18px;color:var(--text);font-weight:600}.small-meta{color:var(--muted);font-size:13px}.view{display:none}.view.active{display:block}.timer-area{flex:1;display:flex;justify-content:center;align-items:center;min-height:0}.ring-wrap{position:relative;width:50%;max-width:400px;aspect-ratio:1/1}.ring-bg{stroke:#0b1420}.ring-fg{transition:stroke-dashoffset .3s linear}.timer-inner{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none}#time-display{font-size:52px;font-weight:700;letter-spacing:1px;pointer-events:auto}.controls{margin-top:18px;display:flex;gap:10px;pointer-events:auto}.controls button{padding:10px 14px}.modes-row{display:flex;justify-content:center;gap:12px;margin-top:12px}.mode-btn{padding:8px 12px;border-radius:10px;border:none;background:transparent;color:var(--muted);cursor:pointer}.mode-btn.active{background:#ffffff0a;color:var(--text)}button{border:none;border-radius:10px;padding:10px 16px;font-weight:600;cursor:pointer;transition:all .2s ease}button.primary{background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;box-shadow:0 4px 18px #00000040}button.primary:hover{transform:translateY(-2px);box-shadow:0 6px 22px #00000059}button.secondary{background:var(--glass);color:var(--text);border:1px solid rgba(255,255,255,.08)}button.secondary:hover{background:#ffffff0f}button.danger{background:linear-gradient(135deg,#ff4d6d,#ff1e4d);color:#fff}button.danger:hover{box-shadow:0 6px 22px #ff1e4d59;transform:translateY(-2px)}input,select{padding:10px 12px;border-radius:10px;border:none;background:var(--glass);color:var(--text);font-size:14px;transition:background .2s ease,border .2s ease}input:focus,select:focus{outline:none;background:#ffffff0f;border:1px solid var(--accent2)}#add-cat-btn{padding:10px 15px;font-size:14px;border-radius:10px;background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;cursor:pointer;transition:background .3s ease;display:inline-block}#add-cat-btn:hover{background:linear-gradient(135deg,#ff6b84,#ff3a5b)}#item-delete-btn{width:24px;height:24px;padding:10px;font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;border:none;background:linear-gradient(135deg,#ff6b84,#ff3a5b);color:#fff;border-radius:2px;cursor:pointer;transition:opacity .3s ease,transform .2s ease}#item-delete-btn:hover{opacity:.8}#item-delete-btn:active{transform:scale(.9)}#item-checkbox-btn{width:24px;height:24px;padding:10px;font-size:16px;display:flex;align-items:center;justify-content:center;border:none;background:linear-gradient(135deg,#ff6b84,#ff3a5b);color:#fff;border-radius:6px;cursor:pointer;transition:opacity .3s ease,transform .2s ease}.todo-controls{display:flex;gap:8px;align-items:center;margin:8px 0;padding:5px 10px;background:#ffffff0d;border-radius:8px}#todo-input{flex:1;padding:10px;font-size:14px;border-radius:10px;border:none;background:var(--glass)}#category-select{min-width:100px;font-size:14px;border-radius:10px;border:none;background:var(--glass)}.todo-list{list-style:none;padding:0 12px 0 0;margin:12px 0;display:flex;flex-direction:column;gap:10px;max-height:42vh;overflow-y:auto;border-radius:8px;background:#0000000d}.todo-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:10px;background:linear-gradient(180deg,#ffffff05,#00000008);border:1px solid rgba(255,255,255,.02);font-size:14px}.todo-item.done{opacity:.5;text-decoration:line-through}.todo-item input[type=checkbox]{width:20px;height:20px;border-radius:4px;border:2px solid var(--muted);background:transparent;transition:background .3s ease;cursor:pointer}.todo-item input[type=checkbox]:checked{background:linear-gradient(135deg,var(--accent1),var(--accent2))}.cat-tag{background:#ffffff1a;color:var(--muted);padding:4px 8px;border-radius:6px;font-size:12px}.todo-list::-webkit-scrollbar{width:8px;background-color:#0000001a}.todo-list::-webkit-scrollbar-thumb{background-color:#ffffff4d;border-radius:4px}option{background:var(--card)}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:12px}.form-grid label{display:flex;flex-direction:column;gap:6px;color:var(--muted)}.settings-actions{margin-top:12px;display:flex;gap:8px}.topbar,.sidebar{-webkit-app-region:drag}button,input,select{-webkit-app-region:no-drag}.main{min-height:0;overflow:hidden}.view{flex:1;min-height:0;overflow:auto}#view-timer.active{display:flex!important;flex-direction:column;align-items:center;justify-content:center}.timer-area{width:100%;display:flex;align-items:center;justify-content:center}.timer-area{flex:1;display:flex;align-items:center;justify-content:center}.ring-wrap{position:relative;width:min(50vh,50vw);height:min(50vh,50vw)}#ring{width:100%;height:100%;display:block}.timer-inner{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}#time-display{font-size:2.8em;font-weight:700}.controls{margin-top:1em;display:flex;gap:.6em}.controls button{padding:.6em 1em;border-radius:.6em;border:none;background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;font-weight:700;cursor:pointer;font-size:.9em}.todo-item-deletebox{width:24px;height:24px;padding:13px;border:none;border-radius:6px;font-size:16px;line-height:1;cursor:pointer;background:linear-gradient(135deg,#ff6b84,#ff3a5b);color:#fff;display:flex;align-items:center;justify-content:center;transition:transform .15s ease,opacity .15s ease}*/ .notify{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);padding:20px 30px;background:linear-gradient(135deg,var(--accent1),var(--accent2));color:#fff;font-size:22px;font-weight:700;border-radius:12px;opacity:0;pointer-events:none;transition:opacity .4s,transform .4s;z-index:9999}.notify.show{opacity:1;transform:translate(-50%,-50%) scale(1.1)}.popup{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);background:linear-gradient(135deg,#6d5dfc,#00d4ff);color:#fff;padding:20px 30px;border-radius:12px;z-index:9999;display:none;opacity:0;transition:opacity .3s ease-in-out}.popup.show{display:block;opacity:1}.popup-content{text-align:center}#popup-message{font-size:24px;font-weight:700;margin-bottom:15px}#popup-close{margin-top:10px;padding:8px 16px;background-color:#ff6b84;border:none;border-radius:5px;color:#fff;cursor:pointer;transition:background-color .3s}#popup-close:hover{background-color:#ff3a5b}.cat-tag{background:#ffffff1a;color:var(--muted);padding:2px 6px;border-radius:6px;font-size:12px}.todo-section-title{text-align:center;opacity:.6;margin:6px 0;list-style:none}