@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary-color:#6366f1;--primary-hover:#4f46e5;--bg-color:#f3f4f6;--card-bg:#ffffffe6;--text-main:#1f2937;--text-muted:#9ca3af;--danger:#ef4444;--danger-hover:#dc2828}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,system-ui,-apple-system,sans-serif}body{min-height:100vh;color:var(--text-main);background:linear-gradient(135deg,#e0e7ff 0%,#ede9fe 100%);justify-content:center;align-items:center;display:flex}.app-container{width:100%;max-width:500px;padding:20px}.todo-card{background:var(--card-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:30px;transition:transform .3s;box-shadow:0 10px 25px #0000000d}.header-row{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.title{color:var(--text-main);background:linear-gradient(90deg,#6366f1,#8b5cf6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin:0;font-size:2rem;font-weight:700}.lang-btn{color:var(--primary-color);cursor:pointer;background:#6366f11a;border:none;border-radius:8px;padding:6px 12px;font-size:.85rem;font-weight:600;transition:all .2s}.lang-btn:hover{background:#6366f133;transform:translateY(-1px)}.input-group{gap:10px;margin-bottom:30px;display:flex}.todo-input{border:2px solid #e5e7eb;border-radius:12px;outline:none;flex:1;padding:12px 16px;font-size:1rem;transition:border-color .2s,box-shadow .2s}.todo-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f133}.add-btn{background:var(--primary-color);color:#fff;cursor:pointer;border:none;border-radius:12px;padding:0 24px;font-size:1rem;font-weight:600;transition:background-color .2s,transform .2s}.add-btn:hover{background:var(--primary-hover)}.add-btn:active{transform:scale(.95)}.todo-list{flex-direction:column;gap:12px;list-style:none;display:flex}.empty-state{text-align:center;color:var(--text-muted);padding:20px 0;font-style:italic}.todo-item{background:#fff;border:1px solid #e5e7eb;border-radius:12px;justify-content:space-between;align-items:center;padding:12px 16px;transition:all .2s;display:flex}.todo-item:hover{transform:translateY(-1px);box-shadow:0 4px 6px #00000005}.todo-content{cursor:pointer;flex:1;align-items:center;gap:12px;display:flex}.checkbox{color:#fff;border:2px solid #d1d5db;border-radius:6px;justify-content:center;align-items:center;width:20px;height:20px;font-size:12px;font-weight:700;transition:all .2s;display:flex}.checkbox.checked{background:var(--primary-color);border-color:var(--primary-color)}.todo-text{font-size:1rem;transition:color .2s}.todo-item.completed .todo-text{color:var(--text-muted);text-decoration:line-through}.delete-btn{color:#d1d5db;cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:4px;font-size:1.2rem;transition:color .2s,background-color .2s;display:flex}.todo-item:hover .delete-btn{color:var(--text-muted)}.delete-btn:hover{background-color:#ef44441a;color:var(--danger)!important}