:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;--bg: #0a0a0a;--surface: #111113;--surface-2: #1a1a1f;--border: rgba(255, 255, 255, .08);--border-light: rgba(255, 255, 255, .12);--text: #fafafa;--text-muted: rgba(255, 255, 255, .55);--text-dim: rgba(255, 255, 255, .35);--radius: .75rem;--radius-sm: .5rem}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:var(--bg);color:var(--text)}.app{max-width:42rem;margin:0 auto;padding:2rem 1.25rem 6rem}.header{text-align:center;margin-bottom:2rem}.brand{display:flex;align-items:center;justify-content:center;gap:.5rem}.logo{font-size:2rem;line-height:1}.brand h1{font-size:1.75rem;font-weight:700;letter-spacing:-.03em;margin:0}.subtitle{color:var(--text-muted);font-size:.9rem;margin-top:.25rem}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;margin-bottom:1.25rem}.stat-card{background:var(--surface);border:1px solid 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.25rem}.cal-month-label{font-size:.8rem;font-weight:600;color:var(--text-muted)}.cal-legend-label{font-size:.65rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em}.habit-list{display:flex;flex-direction:column;gap:1rem}.habit-row{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}.habit-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}.habit-info{display:flex;align-items:center;gap:.5rem;min-width:0}.habit-dot{width:.6rem;height:.6rem;border-radius:50%;flex-shrink:0}.habit-name{font-weight:600;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.streak-badge{display:inline-flex;align-items:center;gap:.15rem;font-size:.7rem;font-weight:600;padding:.15rem .45rem;border:1px solid;border-radius:999px;color:var(--text);flex-shrink:0}.streak-fire{font-size:.65rem}.habit-actions{display:flex;align-items:center;gap:.5rem;flex-shrink:0}.check-btn{width:2rem;height:2rem;border-radius:50%;border:2px solid var(--border-light);background:transparent;color:var(--text);font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.check-btn:hover{border-color:#ffffff4d;background:#ffffff0d}.check-btn.checked{color:#fff;border-color:transparent}.delete-btn{width:1.75rem;height:1.75rem;border-radius:50%;border:none;background:transparent;color:var(--text-dim);font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.delete-btn:hover{color:#ef4444;background:#ef44441a}.calendar-grid{display:grid;grid-template-columns:repeat(30,1fr);gap:3px}.cal-cell{aspect-ratio:1;border-radius:4px;border:1px solid var(--border);background:var(--surface-2);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;padding:2px 0;transition:all .15s;position:relative}.cal-cell:hover{border-color:#ffffff40;transform:scale(1.15);z-index:2}.cal-cell.done{border-color:transparent}.cal-cell.today{border-color:#ffffff59;box-shadow:0 0 0 1px #ffffff26}.cal-day{font-size:.35rem;color:var(--text-dim);line-height:1;text-transform:uppercase}.cal-cell.done .cal-day{color:#ffffffb3}.cal-num{font-size:.45rem;font-weight:600;color:var(--text-muted);line-height:1}.cal-cell.done .cal-num{color:#fff}.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-muted)}.empty-icon{font-size:2.5rem;margin-bottom:.75rem}.empty-state p{font-size:1rem;margin:0}.empty-sub{font-size:.85rem!important;color:var(--text-dim)!important;margin-top:.35rem!important}.fab{position:fixed;bottom:1.5rem;right:1.5rem;width:3.25rem;height:3.25rem;border-radius:50%;border:none;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:1.75rem;font-weight:300;cursor:pointer;box-shadow:0 4px 20px #6366f166;transition:transform .2s,box-shadow .2s;display:flex;align-items:center;justify-content:center;line-height:1}.fab:hover{transform:scale(1.08);box-shadow:0 6px 28px #6366f18c}.fab:active{transform:scale(.95)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:1rem;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--surface);border:1px solid var(--border-light);border-radius:var(--radius);padding:1.5rem;width:100%;max-width:24rem;animation:slideUp .2s ease}@keyframes slideUp{0%{transform:translateY(1rem);opacity:0}to{transform:translateY(0);opacity:1}}.modal h2{font-size:1.15rem;font-weight:700;margin-bottom:1.25rem}.field-label{display:flex;flex-direction:column;gap:.4rem;font-size:.8rem;font-weight:600;color:var(--text-muted);margin-bottom:1rem}.text-input{background:var(--surface-2);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:.6rem .75rem;color:var(--text);font-size:.95rem;font-family:inherit;outline:none;transition:border-color .15s}.text-input:focus{border-color:#6366f1}.text-input::placeholder{color:var(--text-dim)}.color-picker{display:flex;gap:.5rem;flex-wrap:wrap}.color-swatch{width:1.75rem;height:1.75rem;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:transform .15s,border-color .15s}.color-swatch:hover{transform:scale(1.15)}.color-swatch.selected{border-color:#fff;transform:scale(1.15)}.modal-actions{display:flex;justify-content:flex-end;gap:.5rem;margin-top:.5rem}.btn{padding:.55rem 1.1rem;border-radius:var(--radius-sm);border:none;font-size:.85rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all .15s}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover{color:var(--text);background:#ffffff0d}.btn-primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff}.btn-primary:hover{box-shadow:0 2px 12px #6366f166}.btn-primary:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}@media(max-width:640px){.app{padding:1.25rem .75rem 5rem}.calendar-grid{gap:2px}.cal-day{display:none}.cal-num{font-size:.5rem}.stat-value{font-size:1.1rem}}