/* /var/www/lab-assign/public/assets/app.css */
:root {
  --bg: #f6f7f9; --card: #fff; --fg: #1d2330; --muted: #667085; --line: #e3e6eb;
  --accent: #2f5bd3; --accent-fg: #fff; --ok: #1f7a46; --ok-bg: #e9f6ee; --warn: #9a5b00; --warn-bg: #fff5e0;
  --bad: #b42318; --bad-bg: #fdecea; --drag: #eaf0ff; --moved: #fff3b0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171c; --card: #1c2027; --fg: #e6e9ef; --muted: #98a2b3; --line: #2e333d;
    --accent: #7aa2ff; --accent-fg: #0c1222; --ok: #6fd49b; --ok-bg: #16301f; --warn: #f2c063; --warn-bg: #33270f;
    --bad: #ff8a80; --bad-bg: #3a1916; --drag: #24304d; --moved: #4a4313;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 15px/1.7 system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif; }
a { color: var(--accent); }
h1 { font-size: 1.45rem; margin: .4rem 0 .8rem; }
h2 { font-size: 1.12rem; margin: 0 0 .6rem; }
h3 { font-size: 1rem; margin: 0 0 .4rem; }
code { font-size: .9em; }

.hd { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.hd-brand { font-weight: 700; text-decoration: none; color: var(--fg); }
.hd-ver { color: var(--muted); font-size: .8rem; }
.hd-sp { flex: 1; }
.hd-link { text-decoration: none; }
.hd-me { color: var(--muted); font-size: .85rem; overflow-wrap: anywhere; }

.mn { max-width: 760px; margin: 0 auto; padding: 16px; }
.mn-wide { max-width: 1180px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin: 0 0 16px; overflow-x: auto; }
.card-narrow { max-width: 440px; margin: 40px auto; }
.card-link { display: block; text-decoration: none; color: inherit; }
.card-link:hover { border-color: var(--accent); }
.card-result { text-align: center; border: 2px solid var(--ok); }
.result-lab { font-size: 2rem; font-weight: 700; margin: 0; }
.note { background: var(--warn-bg); }

.muted { color: var(--muted); }
.small { font-size: .85rem; }
.alert { background: var(--bad-bg); color: var(--bad); padding: 8px 12px; border-radius: 6px; }
.ok-line { color: var(--ok); }
.warn-line { color: var(--warn); }
.flash { padding: 10px 14px; border-radius: 8px; margin: 0 0 14px; }
.flash-ok { background: var(--ok-bg); color: var(--ok); }
.flash-warn { background: var(--warn-bg); color: var(--warn); }
.flash-err { background: var(--bad-bg); color: var(--bad); }
.devbar { background: var(--warn-bg); color: var(--warn); padding: 6px 12px; border-radius: 6px; font-size: .9rem; }

.btn { display: inline-block; padding: 8px 16px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--fg);
  font: inherit; cursor: pointer; text-decoration: none; }
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); font-weight: 600; }
.btn-ghost { background: transparent; }
.btn-danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn-wide { display: block; width: 100%; text-align: center; padding: 12px; }
.btn-small { padding: 2px 10px; font-size: .85rem; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 14px 0 0; }
.sticky-actions { position: sticky; bottom: 0; background: var(--card); padding: 10px 0; border-top: 1px solid var(--line); }
.inline-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.stack { display: grid; gap: 10px; max-width: 620px; }
.stack label { display: grid; gap: 4px; }
.stack label.check { display: flex; gap: 8px; align-items: baseline; }
input[type=text], input[type=email], input[type=url], input[type=number], input[type=datetime-local], select, textarea {
  font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--fg); max-width: 100%; }
textarea { width: 100%; }
input.num { width: 5.5em; }

.tbl { border-collapse: collapse; width: 100%; }
.tbl th, .tbl td { border-bottom: 1px solid var(--line); padding: 5px 8px; text-align: left; vertical-align: middle; }
.tbl th { font-size: .85rem; color: var(--muted); font-weight: 600; white-space: nowrap; }
.tbl-compact td, .tbl-compact th { padding: 3px 6px; font-size: .9rem; }
.row-bad { background: var(--bad-bg); }
.row-warn { background: var(--warn-bg); }
.row-muted { opacity: .55; }

.badge { display: inline-block; font-size: .78rem; padding: 1px 8px; border-radius: 99px; border: 1px solid var(--line); vertical-align: middle; font-weight: 600; }
.badge-open { background: var(--ok-bg); color: var(--ok); }
.badge-final, .badge-published { background: var(--drag); color: var(--accent); }
.badge-closed { background: var(--warn-bg); color: var(--warn); }

.tabs { display: flex; gap: 4px 14px; flex-wrap: wrap; margin: 0 0 14px; }
.steps { display: flex; gap: 6px; padding: 0; list-style: none; flex-wrap: wrap; counter-reset: s; }
.steps li { padding: 3px 12px; border-radius: 99px; background: var(--bg); color: var(--muted); font-size: .9rem; }
.steps li.now { background: var(--accent); color: var(--accent-fg); font-weight: 700; }
.summary { padding-left: 1.2em; }
details.danger summary { color: var(--bad); cursor: pointer; margin-top: 14px; }

/* 並べ替え */
.sortlist { list-style: none; padding: 0; margin: 12px 0; }
.sortlist .sortitem { display: flex; align-items: center; gap: 10px; padding: 10px 12px; margin: 0 0 6px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); }
.sortlist .label { flex: 1; font-weight: 600; }
.rank { display: inline-block; min-width: 2em; text-align: right; font-weight: 700; color: var(--accent); }
.grip { cursor: grab; touch-action: none; user-select: none; color: var(--muted); padding: 4px 6px; font-weight: 700; letter-spacing: -2px; }
.sortlist .grip { font-size: 1.1rem; }
[data-readonly] .grip { display: none; }
.moves { white-space: nowrap; }
.mv { font: inherit; font-size: .85rem; border: 1px solid var(--line); background: var(--bg); color: var(--fg); border-radius: 6px; padding: 3px 9px; margin-left: 3px; cursor: pointer; }
.sortitem.dragging { background: var(--drag); box-shadow: 0 4px 16px rgba(0, 0, 0, .18); }
.is-dragging { cursor: grabbing; user-select: none; }
.sortitem.moved { animation: moved 1s ease-out; }
@keyframes moved { from { background: var(--moved); } to { background: transparent; } }
.sorttable .rankbox { width: 4.2em; text-align: right; }
.sorttable td.grip { width: 1.5em; }

.labgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.labcol { border: 1px solid var(--line); border-radius: 8px; padding: 10px; }
.labcol ol { margin: 0; padding-left: 1.6em; }

@media (max-width: 600px) {
  .mn { padding: 12px; }
  .card { padding: 12px; }
  .sortlist .sortitem { padding: 10px 8px; gap: 6px; }
  .mv { padding: 6px 10px; }
}