:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --ink: #1b2330;
  --muted: #6b7684;
  --line: #e3e7ee;
  --accent: #2b6cb0;
  --accent-ink: #ffffff;
  --danger: #c23b3b;
  --ok-bg: #e5f6ec;
  --ok-ink: #1d7a46;
  --err-bg: #fdecec;
  --err-ink: #b02a2a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151c; --card: #1a2029; --ink: #e7ebf1; --muted: #93a0b0;
    --line: #2a323d; --accent: #4f9ce8; --ok-bg: #16351f; --ok-ink: #7fdca0;
    --err-bg: #3a1c1c; --err-ink: #f1a3a3;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--ink);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 860px; margin: 0 auto; padding: 20px 16px 60px; }
.topbar {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: var(--card); border-bottom: 1px solid var(--line);
  padding: 12px 16px;
}
.brand { font-weight: 700; font-size: 18px; color: var(--ink); }
.topbar nav { display: flex; align-items: center; gap: 14px; margin-left: auto; flex-wrap: wrap; }
.topbar nav a { color: var(--muted); font-weight: 500; }
.topbar nav a.active { color: var(--ink); }
.logout { margin: 0; }
.logout button { background: none; border: 1px solid var(--line); color: var(--muted); padding: 5px 10px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px; margin: 16px 0; box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
h1 { margin: .2em 0; }
h2 { margin: 0 0 12px; font-size: 18px; }
h3 { margin: 0 0 10px; font-size: 15px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.count { background: var(--line); border-radius: 20px; padding: 1px 10px; font-size: 13px; color: var(--muted); font-weight: 500; }

label { display: block; margin: 12px 0; font-weight: 500; }
input, textarea, select {
  display: block; width: 100%; margin-top: 5px; padding: 9px 11px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink);
  font: inherit;
}
textarea.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
input[type=file] { padding: 7px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row label, .row input { margin: 0; }
.btnrow { display: flex; gap: 10px; flex-wrap: wrap; }

button, .btn {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  border: none; border-radius: 8px; padding: 9px 16px; font: inherit; font-weight: 600;
  cursor: pointer;
}
button:hover, .btn:hover { filter: brightness(1.05); text-decoration: none; }
button.danger, .btn.danger { background: var(--danger); }
.btn-link { margin-left: 10px; color: var(--muted); }

table { width: 100%; border-collapse: collapse; }
.table-wrap { overflow-x: auto; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
td form { margin: 0; }
td button { padding: 5px 10px; font-size: 13px; }
table.kv td:first-child { color: var(--muted); width: 140px; white-space: nowrap; }

.flash { padding: 10px 14px; border-radius: 8px; margin: 12px 0; }
.flash.ok { background: var(--ok-bg); color: var(--ok-ink); }
.flash.err { background: var(--err-bg); color: var(--err-ink); }
.badge { background: var(--line); color: var(--muted); border-radius: 20px; padding: 2px 10px; font-size: 12px; font-weight: 600; }
.badge.ok { background: var(--ok-bg); color: var(--ok-ink); }
code { background: var(--bg); border: 1px solid var(--line); border-radius: 5px; padding: 1px 6px; font-family: ui-monospace, monospace; font-size: 13px; }

.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 20px; }

/* login */
.centered { display: flex; min-height: 100vh; align-items: center; justify-content: center; padding: 20px; }
.login { width: 340px; max-width: 100%; }
.login h1 { margin: 0; font-size: 22px; }

/* public */
.hero { display: flex; gap: 18px; align-items: center; margin: 10px 0 4px; }
.hero-icon { width: 72px; height: 72px; border-radius: 16px; object-fit: cover; }
.icon-preview { width: 60px; height: 60px; border-radius: 12px; object-fit: cover; border: 1px solid var(--line); }
.pkglist { list-style: none; padding: 0; margin: 0; }
.pkglist li { padding: 10px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.addbox .btn { min-width: 130px; text-align: center; }

/* package tree (grouped by section) */
.tree { margin-top: 4px; }
.tree-sec { border: 1px solid var(--line); border-radius: 10px; margin: 10px 0; overflow: hidden; background: var(--card); }
.tree-sec > summary {
  cursor: pointer; padding: 11px 14px; font-weight: 600;
  list-style: none; display: flex; align-items: center; gap: 10px; user-select: none;
}
.tree-sec > summary::-webkit-details-marker { display: none; }
.tree-sec > summary::before { content: "\25B8"; color: var(--muted); font-size: 12px; transition: transform .15s ease; }
.tree-sec[open] > summary::before { transform: rotate(90deg); }
.tree-sec .table-wrap { border-top: 1px solid var(--line); }
.tree-sec table { margin: 0; }
.tree-sec th:first-child, .tree-sec td:first-child { padding-left: 22px; }

@media (max-width: 560px) { .grid2 { grid-template-columns: 1fr; } }