:root {
  --bg: #f4f5f7; --card: #fff; --fg: #1d2129; --muted: #6b7280; --line: #e5e7eb;
  --primary: #1f5fbf; --primary-fg: #fff; --ok: #157347; --err: #b42318; --info: #0b5cad;
  --radius: 10px; font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.5; }
a { color: var(--primary); }
code { background: #eef0f3; padding: 0 .3em; border-radius: 4px; font-size: .95em; }
header.top { display: flex; align-items: center; justify-content: space-between; padding: .7rem 1.2rem; background: #fff; border-bottom: 1px solid var(--line); }
header .brand { font-weight: 700; text-decoration: none; color: var(--fg); font-size: 1.1rem; }
header nav { display: flex; gap: 1rem; align-items: center; }
header nav a { text-decoration: none; color: var(--fg); }
header nav .user { color: var(--muted); font-weight: 400; }
form.inline { display: inline; }
main { max-width: 1100px; margin: 1.5rem auto; padding: 0 1rem; }
footer { max-width: 1100px; margin: 2rem auto 3rem; padding: 0 1rem; color: var(--muted); font-size: .85rem; display: flex; flex-direction: column; gap: .2rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem 1.5rem; margin-bottom: 1.2rem; }
.card.narrow { max-width: 460px; margin: 2rem auto; }
h1 { font-size: 1.4rem; margin: 0 0 .8rem; }
h2 { font-size: 1.1rem; margin: 0 0 .7rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.fn { word-break: break-all; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
@media (max-width: 800px) { .grid { grid-template-columns: 1fr; } }
.stack { display: flex; flex-direction: column; gap: .9rem; }
label { display: flex; flex-direction: column; gap: .3rem; font-weight: 600; font-size: .95rem; }
label.check { flex-direction: row; align-items: center; gap: .5rem; font-weight: 400; }
label .muted { font-weight: 400; }
input[type=text], input[type=password], input[type=number], input:not([type]), select {
  font: inherit; padding: .55rem .7rem; border: 1px solid #cfd4dc; border-radius: 8px; background: #fff; color: var(--fg);
}
input:focus, select:focus { outline: 2px solid #9ec1f5; border-color: var(--primary); }
button, .btn { font: inherit; padding: .6rem 1.1rem; border-radius: 8px; border: 1px solid #cfd4dc; background: #fff; color: var(--fg); cursor: pointer; text-decoration: none; display: inline-block; }
button.primary, .btn.primary { background: var(--primary); color: var(--primary-fg); border-color: var(--primary); font-weight: 600; }
button:disabled { opacity: .6; cursor: progress; }
button.link { border: 0; background: none; padding: 0; color: var(--fg); }
button.link.danger { color: var(--err); font-size: .85rem; margin-top: 1rem; }
.btn.small { padding: .3rem .7rem; font-size: .85rem; }
.alert { border-radius: 8px; padding: .8rem 1rem; margin: .6rem 0 1rem; border: 1px solid var(--line); background: #f8fafc; }
.alert.error { background: #fef3f2; border-color: #fecdca; color: var(--err); }
.alert.ok { background: #ecfdf3; border-color: #abefc6; color: #085d3a; }
.alert.info { background: #eff6ff; border-color: #bfdbfe; color: var(--info); }
.alert-inline { color: #92400e; }
.drop { border: 2px dashed #c5cad3; border-radius: var(--radius); padding: 2rem 1rem; text-align: center; cursor: pointer; font-weight: 400; gap: .5rem; background: #fafbfc; }
.drop.over { border-color: var(--primary); background: #eff6ff; }
.drop input[type=file] { position: absolute; opacity: 0; width: 1px; height: 1px; }
.drop #dropText { font-weight: 600; }
ul.status { list-style: none; padding: 0; margin: 0 0 .5rem; }
ul.status li { padding: .2rem 0; }
.bar { display: inline-block; width: 90px; height: 8px; background: #e5e7eb; border-radius: 4px; vertical-align: middle; overflow: hidden; margin: 0 .3rem; }
.bar span { display: block; height: 100%; background: var(--ok); }
table.jobs { width: 100%; border-collapse: collapse; font-size: .95rem; }
table.jobs th, table.jobs td { text-align: left; padding: .5rem .5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
table.jobs th { color: var(--muted); font-weight: 600; font-size: .85rem; }
.badge { display: inline-block; padding: .1rem .55rem; border-radius: 999px; font-size: .8rem; background: #eef0f3; }
.badge.ready { background: #dbeafe; color: #1e40af; }
.badge.printed { background: #dcfce7; color: #166534; }
.badge.failed, .badge.print_failed { background: #fee2e2; color: #991b1b; }
.badge.converting, .badge.printing { background: #fef9c3; color: #854d0e; }
.previews { display: flex; flex-wrap: wrap; gap: .6rem; }
.previews figure { margin: 0; text-align: center; }
.previews img { border: 1px solid var(--line); box-shadow: 0 1px 3px rgba(0,0,0,.08); max-width: 150px; height: auto; background: #fff; }
.previews figcaption { font-size: .75rem; color: var(--muted); }
.estimate { font-weight: 600; padding: .5rem .8rem; background: #f1f5f9; border-radius: 8px; }
.estimate.bad { background: #fef3f2; color: var(--err); }
.spinner { display: inline-block; width: 1em; height: 1em; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -0.15em; margin-right: .3rem; }
@keyframes spin { to { transform: rotate(360deg); } }
.prose p, .prose li, .prose dd { color: #374151; }
.prose dt { font-weight: 600; margin-top: .6rem; }
.prose dd { margin: 0 0 .4rem; }
details summary { cursor: pointer; }