.app-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px 16px}.app-card{width:min(100%,640px);background:#ffffffe6;border:1px solid rgba(15,23,42,.08);border-radius:28px;box-shadow:0 30px 80px #0f172a24;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);padding:32px}.app-header{margin-bottom:24px}.app-kicker{margin:0 0 8px;color:#b45309;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.app-header h1{margin:0;font-size:clamp(2rem,4vw,2.8rem)}.app-description{margin:12px 0 0;color:#475569;line-height:1.6}.app-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:24px}.summary-card{padding:16px 18px;border-radius:20px;background:linear-gradient(180deg,#fff,#f8fafc);border:1px solid #e2e8f0}.summary-card.is-accent{background:linear-gradient(180deg,#fef3c7,#fde68a);border-color:#f59e0b}.summary-label{display:block;color:#64748b;font-size:.9rem;margin-bottom:6px}.summary-value{display:block;font-size:1.8rem;line-height:1}.todo-form{margin-bottom:24px}.todo-form-label{display:block;margin-bottom:8px;font-weight:600}.todo-form-row{display:flex;gap:12px}.todo-input{flex:1;border:1px solid #cbd5e1;border-radius:14px;padding:14px 16px;font:inherit;background:#fff;transition:border-color .16s ease,box-shadow .16s ease}.todo-input:focus{outline:none;border-color:#f59e0b;box-shadow:0 0 0 4px #f59e0b2e}.todo-add-button,.todo-delete-button{border:0;border-radius:14px;padding:14px 18px;font:inherit;font-weight:700;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease}.todo-add-button{background:#0f172a;color:#fff;box-shadow:0 12px 24px #0f172a2e}.todo-add-button:hover,.todo-delete-button:hover{transform:translateY(-1px)}.todo-list-section{display:grid;gap:16px}.todo-list-header{display:flex;align-items:center;justify-content:space-between}.todo-list-header h2{margin:0;font-size:1.1rem}.todo-list-header span{color:#64748b;font-size:.95rem;font-weight:600}.todo-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}.todo-empty-state{margin:0;padding:28px 20px;border:1px dashed #cbd5e1;border-radius:18px;background:#f8fafc;color:#64748b;text-align:center}.todo-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-radius:20px;background:linear-gradient(180deg,#fff,#f8fafc);border:1px solid #e2e8f0;box-shadow:0 10px 24px #0f172a0f;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}.todo-item:hover{transform:translateY(-1px);box-shadow:0 14px 28px #0f172a1a}.todo-main{display:grid;gap:10px}.todo-checkbox-row{display:flex;align-items:center;gap:12px;color:#0f172a;font-weight:600}.todo-checkbox-row input{width:18px;height:18px;accent-color:#f59e0b}.todo-status-badge{display:inline-flex;width:fit-content;padding:6px 10px;border-radius:999px;background:#e2e8f0;color:#334155;font-size:.8rem;font-weight:700}.todo-status-badge.is-completed{background:#dcfce7;color:#166534}.todo-delete-button{background:#fee2e2;color:#b91c1c}.todo-item.is-completed{background:linear-gradient(180deg,#f8fafc,#f1f5f9);border-color:#cbd5e1}.todo-item.is-completed .todo-checkbox-row span{color:#64748b;text-decoration:line-through}@media (max-width: 640px){.app-card{padding:24px}.app-summary{grid-template-columns:1fr}.todo-form-row,.todo-item{flex-direction:column;align-items:stretch}}:root{font-family:Pretendard,Noto Sans KR,sans-serif;line-height:1.5;font-weight:400;color:#0f172a;background:radial-gradient(circle at top,rgba(251,191,36,.35),transparent 30%),linear-gradient(180deg,#fff7ed,#fffbeb 45%,#f8fafc);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input{font:inherit}