*:where(:not(dialog)){box-sizing:border-box}:root{font-family:Noto Sans TC,Segoe UI,PingFang TC,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6;font-weight:400;color:#0f172a;background-color:#f1f5f9;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;background:#f1f5f9;min-height:100vh}#root{min-height:100vh}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.app{max-width:960px;margin:0 auto;padding:2rem 1.5rem 4rem;display:flex;flex-direction:column;gap:1.5rem}.app__header{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}.app__header h1{margin:0;font-size:2rem}.app__subtitle{margin:.25rem 0 0;color:#64748b;font-size:.95rem}.app__controls{display:flex;gap:.75rem;flex-wrap:wrap}.button{border-radius:10px;border:1px solid transparent;padding:.65rem 1.4rem;font-size:1rem;font-weight:600;font-family:inherit;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background-color .2s ease,color .2s ease;display:inline-flex;align-items:center;justify-content:center;min-width:6.5rem}.button:disabled{cursor:not-allowed;opacity:.7;transform:none;box-shadow:none}.button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 8px 14px #0f172a1f}.button--primary{background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff}.button--primary:hover:not(:disabled){background:linear-gradient(135deg,#1d4ed8,#1e40af)}.button--ghost{border-color:#cbd5f5;background-color:#f8fafc;color:#1e293b}.button--ghost:hover:not(:disabled){background-color:#e2e8f0}.button--danger{background:linear-gradient(135deg,#dc2626,#b91c1c);color:#fff}.button--danger:hover:not(:disabled){background:linear-gradient(135deg,#b91c1c,#991b1b)}.app__status,.app__error{border-radius:12px;padding:1rem 1.25rem;font-size:1rem;font-weight:500;box-shadow:0 8px 16px #0f172a14}.app__status{background:#e0f2fe;color:#075985}.app__error{background:#fee2e2;color:#991b1b}.app__loading{text-align:center;padding:2rem 0;color:#475569}.app__board{background:#fff;border-radius:16px;padding:1rem;box-shadow:0 16px 32px #0f172a14;display:flex;justify-content:center}.stamp-board{position:relative;width:100%;max-width:640px;margin:0 auto}.stamp-board__background{width:100%;border-radius:12px;box-shadow:0 12px 22px #0f172a1f;display:block}.stamp-board__slot{position:absolute;transform:translate(-50%,-50%);aspect-ratio:1 / 1;border:2px dashed rgba(148,163,184,.9);border-radius:50%;background:#ffffffb3;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:.25rem;text-align:center;font-size:.85rem;color:#475569;font-weight:600}.stamp-board__slot--collected{border-color:transparent;background:transparent;box-shadow:0 10px 18px #1e40af26}.stamp-board__stamp{width:100%;height:100%;object-fit:contain}.stamp-board__placeholder{padding:.3rem;line-height:1.2}.stamp-board__redeemed{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0f172a66;border-radius:12px}.stamp-board__redeemed span{color:#fff;font-size:clamp(2.2rem,8vw,3.2rem);letter-spacing:.15em;font-weight:800;transform:rotate(-12deg);text-shadow:0 12px 24px rgba(15,23,42,.6)}.stamp-board__redeemed img{max-width:70%;filter:drop-shadow(0 12px 20px rgba(15,23,42,.4))}.app__progress{background:#fff;border-radius:16px;padding:1.5rem;box-shadow:0 12px 28px #0f172a14}.app__progress strong{display:block;margin-bottom:1rem;font-size:1.1rem;color:#0f172a}.app__progress ol{margin:0;padding-left:1.25rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.6rem 1.5rem}.app__progress li{list-style:decimal;color:#475569;font-weight:500}.app__progress li.is-collected{color:#2563eb;font-weight:700}.reset-dialog{position:fixed;inset:0;background:#0f172a7a;display:flex;align-items:center;justify-content:center;padding:1.5rem;z-index:20}.reset-dialog__content{background:#fff;border-radius:18px;padding:2rem;max-width:420px;width:100%;box-shadow:0 24px 48px #0f172a47;display:flex;flex-direction:column;gap:1rem}.reset-dialog__content h2{margin:0;font-size:1.5rem;color:#0f172a}.reset-dialog__content p{margin:0;color:#475569;line-height:1.5}.reset-dialog__label{display:flex;flex-direction:column;gap:.5rem;color:#1f2937;font-weight:600}.reset-dialog__label input{padding:.65rem .85rem;border-radius:10px;border:1px solid #cbd5e1;font-size:1rem;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease}.reset-dialog__label input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb38}.reset-dialog__actions{display:flex;justify-content:flex-end;gap:.75rem;margin-top:.5rem}.reset-dialog__error{margin:0;color:#b91c1c;font-weight:600}@media(max-width:640px){.app{padding:1.5rem 1rem 3rem}.app__header{align-items:flex-start}.app__controls{width:100%;justify-content:flex-start}.stamp-board__slot{font-size:.75rem}}