:root{--bg-primary:#121212;--bg-secondary:#1e1e1e;--bg-card:#2c2c2c;--text-primary:#fff;--text-secondary:#a0a0a0;--accent-primary:#ff7043;--accent-secondary:#ffb74d;--accent-hover:#f4511e;--border-color:#333;--success-color:#4caf50;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background-color:var(--bg-primary);color:var(--text-primary);font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;justify-content:center;min-height:100vh;display:flex}#root{width:100%;max-width:600px;margin:0 auto;padding:1rem}h1,h2,h3{color:var(--text-primary);margin-bottom:1rem}p{color:var(--text-secondary)}button{background-color:var(--accent-primary);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:background-color .2s,transform .1s}button:hover{background-color:var(--accent-hover)}button:active{transform:scale(.98)}button:disabled{background-color:var(--border-color);color:var(--text-secondary);cursor:not-allowed;transform:none}.card{background-color:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;margin-bottom:1rem;padding:1rem;transition:opacity .3s,transform .2s;display:flex;box-shadow:0 4px 6px #0000004d}.card-header{justify-content:space-between;align-items:center;margin-bottom:.5rem;display:flex}.card-title{color:var(--accent-secondary);font-size:1.25rem;font-weight:600}.card-details{color:var(--text-secondary);gap:1rem;font-size:.9rem;display:flex}.card.completed{opacity:.5;border-color:var(--success-color)}.checkbox-container{cursor:pointer;align-items:center;font-size:1.2rem;display:flex}.checkbox-container input{opacity:0;cursor:pointer;width:0;height:0;position:absolute}.checkmark{background-color:var(--bg-primary);border:2px solid var(--border-color);border-radius:6px;width:25px;height:25px;transition:all .2s;display:inline-block;position:relative}.checkbox-container input:checked~.checkmark{background-color:var(--success-color);border-color:var(--success-color)}.checkmark:after{content:"";border:3px solid #fff;border-width:0 3px 3px 0;width:5px;height:10px;display:none;position:absolute;top:4px;left:8px;transform:rotate(45deg)}.checkbox-container input:checked~.checkmark:after{display:block}.section{margin-bottom:2rem}.section-title{border-bottom:2px solid var(--border-color);margin-bottom:1rem;padding-bottom:.5rem}.flex-between{justify-content:space-between;align-items:center;display:flex}