*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #0f0f17;--bg-secondary: #1a1a28;--bg-card: #1e1e2e;--border-color: #2a2a3c;--text-primary: #e2e2f0;--text-secondary: #9090a8;--text-muted: #5a5a72;--accent: #6366f1;--danger: #ef4444;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color:var(--text-primary);background-color:var(--bg-primary);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{min-width:320px;min-height:100vh}input,button,select{font-family:inherit;font-size:inherit}button{cursor:pointer;border:none;background:none;color:inherit}.streak-calendar{width:100%;padding:16px 0}.streak-calendar__scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}.streak-calendar__inner{min-width:720px}.streak-calendar__months{display:grid;margin-bottom:4px}.streak-calendar__month-label{font-size:11px;color:#ffffff80;text-align:left;-webkit-user-select:none;user-select:none}.streak-calendar__body{display:flex;gap:4px}.streak-calendar__day-labels{display:flex;flex-direction:column;justify-content:space-between;width:24px;flex-shrink:0}.streak-calendar__day-label{font-size:10px;color:#fff6;height:13px;line-height:13px;text-align:right;-webkit-user-select:none;user-select:none}.streak-calendar__grid{display:grid;gap:3px;flex:1}.streak-calendar__cell{width:100%;aspect-ratio:1;max-width:13px;max-height:13px;border-radius:2px;background-color:#ffffff14;cursor:pointer;transition:outline .15s ease;position:relative}.streak-calendar__cell:hover{outline:1px solid rgba(255,255,255,.3);outline-offset:1px}.streak-calendar__cell--empty{background-color:transparent;cursor:default}.streak-calendar__cell--empty:hover{outline:none}.streak-calendar__cell--completed{opacity:1}.streak-calendar__cell[title]:hover:after{content:attr(title);position:absolute;bottom:calc(100% + 6px);left:50%;transform:translate(-50%);background:#1a1a2e;color:#ffffffe6;font-size:11px;padding:4px 8px;border-radius:4px;white-space:nowrap;pointer-events:none;z-index:10;box-shadow:0 2px 8px #0006;border:1px solid rgba(255,255,255,.1)}.streak-calendar__cell[title]:hover:before{content:"";position:absolute;bottom:calc(100% + 2px);left:50%;transform:translate(-50%);border:4px solid transparent;border-top-color:#1a1a2e;pointer-events:none;z-index:10}.stats-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px}.stat-card{flex:1 1 120px;min-width:120px;background:#1e1e2e;border:1px solid #2a2a3c;border-radius:12px;padding:16px;display:flex;flex-direction:column;align-items:center;gap:6px;transition:border-color .2s}.stat-card:hover{border-color:var(--accent, #6366f1)}.stat-value{font-size:1.6rem;font-weight:700;color:#e2e2f0}.stat-suffix{font-size:.9rem;font-weight:400;color:#9090a8}.stat-label{font-size:.75rem;font-weight:500;color:#7a7a94;text-transform:uppercase;letter-spacing:.05em}.milestones-section{margin-bottom:20px}.milestones-title{font-size:.85rem;font-weight:600;color:#9090a8;text-transform:uppercase;letter-spacing:.06em;margin:0 0 12px}.milestones-grid{display:flex;gap:10px;flex-wrap:wrap}.milestone-badge{display:flex;flex-direction:column;align-items:center;justify-content:center;width:64px;height:64px;border-radius:50%;border:2px solid transparent;transition:transform .2s,box-shadow .2s}.milestone-earned{background:color-mix(in srgb,var(--accent, #6366f1) 20%,#1e1e2e);border-color:var(--accent, #6366f1);box-shadow:0 0 10px color-mix(in srgb,var(--accent, #6366f1) 30%,transparent)}.milestone-earned:hover{transform:scale(1.1);box-shadow:0 0 16px color-mix(in srgb,var(--accent, #6366f1) 45%,transparent)}.milestone-locked{background:#1a1a28;border-color:#2a2a3c;opacity:.45}.milestone-number{font-size:1.1rem;font-weight:700;color:#e2e2f0;line-height:1}.milestone-label{font-size:.55rem;font-weight:500;color:#9090a8;margin-top:2px;white-space:nowrap}.milestone-earned .milestone-number{color:var(--accent, #6366f1)}.app{max-width:800px;margin:0 auto;padding:32px 20px 64px}.app-header{text-align:center;margin-bottom:36px}.app-title{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:4px;letter-spacing:-.02em}.app-subtitle{font-size:.9rem;color:var(--text-muted)}.add-habit-form{display:flex;align-items:center;gap:12px;padding:16px 20px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:14px;margin-bottom:28px;flex-wrap:wrap}.add-habit-form__input{flex:1;min-width:160px;padding:10px 14px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-size:.95rem;outline:none;transition:border-color .2s}.add-habit-form__input::placeholder{color:var(--text-muted)}.add-habit-form__input:focus{border-color:var(--accent)}.add-habit-form__colors{display:flex;gap:6px}.add-habit-form__color-btn{width:26px;height:26px;border-radius:50%;border:2px solid transparent;transition:transform .15s,border-color .15s}.add-habit-form__color-btn:hover{transform:scale(1.15)}.add-habit-form__color-btn--active{border-color:#fff;transform:scale(1.15)}.add-habit-form__submit{padding:10px 22px;background:var(--accent);color:#fff;font-weight:600;font-size:.9rem;border-radius:8px;transition:opacity .2s}.add-habit-form__submit:hover:not(:disabled){opacity:.85}.add-habit-form__submit:disabled{opacity:.35;cursor:not-allowed}.habit-list{display:flex;flex-direction:column;gap:12px}.habit-list__empty{text-align:center;padding:48px 20px;color:var(--text-muted);font-size:.95rem}.habit-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:14px;overflow:hidden;transition:border-color .2s}.habit-item:hover{border-color:color-mix(in srgb,var(--habit-color, var(--accent)) 40%,var(--border-color))}.habit-item__header{display:flex;align-items:center;gap:12px;padding:14px 18px}.habit-item__expand{display:flex;align-items:center;justify-content:center;width:24px;height:24px;color:var(--text-muted);font-size:10px;flex-shrink:0;transition:color .15s}.habit-item__expand:hover{color:var(--text-secondary)}.habit-item__chevron{display:inline-block;transition:transform .25s ease}.habit-item__chevron--open{transform:rotate(90deg)}.habit-item__color-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0}.habit-item__name{flex:1;font-size:1rem;font-weight:500;color:var(--text-primary);text-align:left}.habit-item__actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.habit-item__toggle{width:32px;height:32px;border-radius:8px;border:2px solid var(--border-color);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:#fff;transition:background-color .2s,border-color .2s,transform .15s}.habit-item__toggle:hover{transform:scale(1.1)}.habit-item__toggle--done{border-color:transparent}.habit-item__delete{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-muted);transition:color .2s,background-color .2s}.habit-item__delete:hover{color:var(--danger);background:#ef44441a}.habit-item__details{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}.habit-item__details--open{grid-template-rows:1fr}.habit-item__details-inner{overflow:hidden;padding:0 18px}.habit-item__details--open .habit-item__details-inner{padding:0 18px 18px}@media(max-width:600px){.app{padding:20px 12px 48px}.app-title{font-size:1.5rem}.add-habit-form{padding:12px 14px;gap:10px}.add-habit-form__input{min-width:100%}.habit-item__header{padding:12px 14px}}