@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap";
:root{--bg-dark:#09090b;--bg-card:#18181b;--border-subtle:#27272a;--text-primary:#fafafa;--text-secondary:#a1a1aa;--text-muted:#52525b;--accent:#8b5cf6;--accent-hover:#7c3aed;--danger:#ef4444;--danger-hover:#dc2626;--success:#10b981}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-dark);color:var(--text-primary);justify-content:center;align-items:flex-start;min-height:100vh;padding:4rem 1.5rem;font-family:Inter,sans-serif;display:flex}.app-container{background-color:var(--bg-card);border:1px solid var(--border-subtle);border-radius:16px;flex-direction:column;gap:1.5rem;width:100%;max-width:520px;padding:2.5rem;display:flex;box-shadow:0 20px 40px #0006}.app-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:flex-start;margin-bottom:.5rem;padding-bottom:1.5rem;display:flex}.app-header h1{letter-spacing:-.02em;color:var(--text-primary);margin-bottom:.25rem;font-size:1.75rem;font-weight:600}.branding{color:var(--accent);opacity:.9;font-size:.85rem;font-weight:500}.task-stats{flex-direction:column;align-items:flex-end;gap:.4rem;display:flex}.stat-pill{background:var(--border-subtle);color:var(--text-secondary);border-radius:99px;padding:.2rem .6rem;font-size:.75rem;font-weight:500}.stat-pill.completed-stat{color:var(--success);background:#10b98126}.todo-input-form{gap:.75rem;display:flex}.todo-input{background:var(--bg-dark);border:1px solid var(--border-subtle);color:var(--text-primary);border-radius:10px;outline:none;flex:1;padding:.875rem 1.25rem;font-family:inherit;font-size:.95rem;transition:all .2s}.todo-input::placeholder{color:var(--text-muted)}.todo-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #8b5cf626}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:.875rem 1.5rem;font-family:inherit;font-weight:500;transition:all .2s}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px #8b5cf666}.filters{gap:.5rem;display:flex}.filter-link{color:var(--text-secondary);border:1px solid #0000;border-radius:8px;padding:.4rem .8rem;font-size:.875rem;font-weight:500;text-decoration:none;transition:all .2s}.filter-link:hover{color:var(--text-primary);background:#ffffff08}.filter-link.active{color:var(--text-primary);background:var(--border-subtle);border-color:#ffffff0d}.todo-list{flex-direction:column;gap:.5rem;margin-top:.5rem;list-style:none;display:flex}.todo-item{background:var(--bg-dark);border:1px solid var(--border-subtle);border-radius:10px;justify-content:space-between;align-items:center;padding:1rem 1.25rem;transition:border-color .2s,transform .1s;display:flex}.todo-item:hover{border-color:#ffffff26}.todo-content{flex:1;align-items:center;gap:1rem;display:flex}.checkbox-custom{border:2px solid var(--text-muted);cursor:pointer;background:0 0;border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;width:22px;height:22px;padding:0;transition:all .2s;display:flex}.checkbox-custom:hover{border-color:var(--text-secondary)}.checkbox-custom:focus-visible{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #8b5cf666}.todo-item.completed .checkbox-custom{background:var(--success);border-color:var(--success)}.todo-item.completed .checkbox-custom:after{content:"✓";color:var(--bg-dark);font-size:14px;font-weight:800}.todo-text{color:var(--text-primary);font-size:.95rem;line-height:1.4;transition:all .2s}.todo-item.completed .todo-text{color:var(--text-muted);text-decoration:line-through}.btn-delete{color:var(--text-muted);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:1.25rem;transition:all .2s;display:flex}.todo-item:hover .btn-delete,.btn-delete:focus-visible{opacity:1}.btn-delete:hover{color:var(--danger);background:#ef44441a}.btn-delete:focus-visible{outline:none;box-shadow:0 0 0 2px #ef444466}.empty-state{text-align:center;color:var(--text-secondary);background:var(--bg-dark);border:1px dashed var(--border-subtle);border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:1rem;margin-top:.5rem;padding:3rem 1rem;display:flex}.empty-icon{opacity:.5;font-size:2.5rem}@media (max-width:480px){body{padding:1rem}.app-container{border-radius:12px;padding:1.5rem}.app-header{flex-direction:column;align-items:flex-start;gap:1rem}.task-stats{flex-direction:row;align-items:center}.todo-input-form{flex-direction:column}.btn-primary{width:100%}.btn-delete{opacity:1}}