*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #4f46e5;--primary-dark: #3730a3;--green: #16a34a;--red: #dc2626;--bg: #f8fafc;--surface: #ffffff;--border: #e2e8f0;--text: #1e293b;--muted: #64748b;--header-h: 56px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.screen{display:flex;flex-direction:column;min-height:100vh}.app-header{position:sticky;top:0;display:flex;align-items:center;gap:12px;padding:0 16px;height:var(--header-h);background:var(--primary);color:#fff;z-index:10}.app-header h1{font-size:1.2rem;font-weight:600}.icon-btn{background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer;padding:4px 8px;border-radius:4px;line-height:1}.icon-btn:hover{background:#ffffff26}.menu-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:20}.slide-menu{position:fixed;top:0;left:0;width:260px;height:100%;background:var(--surface);z-index:30;transform:translate(-100%);transition:transform .25s ease;display:flex;flex-direction:column;box-shadow:4px 0 16px #00000026}.slide-menu.open{transform:translate(0)}.menu-header{padding:24px 20px 16px;font-size:1.3rem;font-weight:700;color:var(--primary);border-bottom:1px solid var(--border)}.slide-menu button{background:none;border:none;text-align:left;padding:14px 20px;font-size:1rem;cursor:pointer;color:var(--text);transition:background .15s}.slide-menu button:hover{background:var(--bg);color:var(--primary)}.menu-signout{margin-top:auto;color:var(--red)!important;border-top:1px solid var(--border)}.menu-signout:hover{background:#fee2e2!important;color:var(--red)!important}.habit-list{padding:16px;display:flex;flex-direction:column;gap:12px}.habit-card{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-radius:12px;cursor:pointer;box-shadow:0 1px 4px #00000014;transition:transform .1s,box-shadow .1s;color:#fff}.habit-card:active{transform:scale(.98)}.habit-card.done{background:var(--green)}.habit-card.pending{background:var(--red)}.habit-name{font-size:1.05rem;font-weight:600}.habit-time{font-size:1.2rem;font-weight:700;font-variant-numeric:tabular-nums}.habit-period{font-size:.8rem;opacity:.85;text-transform:capitalize}.empty-msg{text-align:center;color:var(--muted);padding:40px 20px}.timing-body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:40px;padding:40px 20px}.timer-display{font-size:5rem;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.05em;color:var(--text);padding:24px 40px;border-radius:20px;background:var(--surface);box-shadow:0 4px 24px #0000001a;transition:box-shadow .15s;-webkit-user-select:none;user-select:none}.timer-display.clickable{cursor:pointer}.timer-display.clickable:hover{box-shadow:0 4px 24px #4f46e540}.timer-edit-input{font-size:5rem;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.05em;color:var(--primary);padding:24px 40px;border-radius:20px;border:2px solid var(--primary);outline:none;width:420px;text-align:center;background:var(--surface)}.play-pause-btn{width:80px;height:80px;border-radius:50%;border:none;cursor:pointer;font-size:2rem;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px #00000026;transition:transform .1s,box-shadow .1s}.play-pause-btn.play{background:var(--primary);color:#fff}.play-pause-btn.pause{background:#f59e0b;color:#fff}.play-pause-btn:active{transform:scale(.94)}.habit-period-label{color:var(--muted);font-size:.9rem}.manage-content{padding:16px 16px 88px;display:flex;flex-direction:column;gap:4px}.section-title{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:12px 4px 6px}.manage-habit-item{background:var(--surface);border-radius:10px;box-shadow:0 1px 4px #00000012;margin-bottom:6px;overflow:hidden}.manage-habit-row{display:flex;align-items:center;padding:14px 16px;cursor:pointer;gap:12px}.manage-habit-row:hover{background:var(--bg)}.manage-habit-info{flex:1;display:flex;flex-direction:column;gap:2px}.manage-habit-name{font-weight:600;font-size:.95rem}.manage-habit-desc{color:var(--muted);font-size:.85rem}.manage-habit-meta{color:var(--muted);font-size:.8rem}.delete-btn{background:none;border:none;color:var(--muted);font-size:1rem;cursor:pointer;padding:6px 8px;border-radius:6px;line-height:1;flex-shrink:0}.delete-btn:hover{background:#fee2e2;color:var(--red)}.habit-form{display:flex;flex-direction:column;gap:10px;padding:16px}.habit-form input,.habit-form textarea,.habit-form select{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:.95rem;font-family:inherit;background:var(--bg);color:var(--text);outline:none;transition:border-color .15s}.habit-form input:focus,.habit-form textarea:focus,.habit-form select:focus{border-color:var(--primary)}.habit-form textarea{resize:vertical;min-height:60px}.time-inputs{display:flex;align-items:flex-start;gap:8px}.time-input-group{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px}.time-input-group input{width:100%;text-align:center;font-size:1.6rem;font-weight:600;padding:12px 8px}.time-input-group label{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}.time-colon{font-size:1.6rem;font-weight:600;color:var(--text);padding-top:14px}.form-actions{display:flex;gap:8px}.form-actions button{flex:1;padding:10px;border-radius:8px;border:none;font-size:.95rem;cursor:pointer;font-weight:500;transition:opacity .15s}.form-actions button[type=submit]{background:var(--primary);color:#fff}.form-actions button[type=button]{background:var(--border);color:var(--text)}.form-actions button:hover{opacity:.85}.fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:var(--primary);color:#fff;font-size:1.8rem;border:none;cursor:pointer;box-shadow:0 4px 16px #4f46e566;display:flex;align-items:center;justify-content:center;transition:transform .1s;z-index:5;line-height:1}.fab:active{transform:scale(.94)}.create-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:flex-end;justify-content:center;z-index:40}.create-card{background:var(--surface);border-radius:16px 16px 0 0;width:100%;max-width:520px;padding-top:20px}.create-card h2{padding:0 16px 12px;font-size:1.1rem;border-bottom:1px solid var(--border);margin-bottom:4px}.about-content{padding:24px 20px;display:flex;flex-direction:column;gap:16px;max-width:600px}.about-content h2{font-size:1.5rem;color:var(--primary)}.about-content h3{font-size:1rem;font-weight:600}.about-content p,.about-content li{line-height:1.65;color:var(--muted)}.about-content ol{padding-left:20px;display:flex;flex-direction:column;gap:8px}.logout-btn{margin-top:8px;padding:10px 20px;background:#fee2e2;color:var(--red);border:none;border-radius:8px;font-size:.95rem;font-weight:500;cursor:pointer;align-self:flex-start;transition:background .15s}.logout-btn:hover{background:#fecaca}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--primary);padding:20px}.login-card{background:var(--surface);border-radius:16px;padding:40px 32px;width:100%;max-width:360px;box-shadow:0 20px 60px #0003}.login-card h1{font-size:2rem;color:var(--primary);margin-bottom:4px}.login-card p{color:var(--muted);margin-bottom:24px;font-size:.9rem}.login-card form{display:flex;flex-direction:column;gap:12px}.login-card input{padding:12px 14px;border:1px solid var(--border);border-radius:8px;font-size:1rem;outline:none;transition:border-color .15s}.login-card input:focus{border-color:var(--primary)}.login-card button[type=submit]{padding:12px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;margin-top:4px;transition:background .15s}.login-card button[type=submit]:hover{background:var(--primary-dark)}.error{color:var(--red);font-size:.875rem}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--muted);font-size:1.1rem}