:root {
  color-scheme: light;
  --bg: #eef2f4;
  --panel: #ffffff;
  --line: rgba(20, 40, 55, 0.12);
  --line-strong: rgba(20, 40, 55, 0.22);
  --text: #17232b;
  --muted: #66757f;
  --accent: #a86100;
  --accent-ink: #ffffff;
  --accent-soft: rgba(168, 97, 0, 0.1);
  --ok: #147b57;
  --ok-soft: rgba(20, 123, 87, 0.1);
  --danger: #b4402e;
  --danger-soft: rgba(180, 64, 46, 0.1);
  --shadow: 0 24px 50px -30px rgba(10, 25, 35, 0.35);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", "Roboto Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #070b0f;
    --panel: #0d151d;
    --line: rgba(168, 194, 210, 0.14);
    --line-strong: rgba(168, 194, 210, 0.26);
    --text: #e8eef2;
    --muted: #8a9aa5;
    --accent: #ffb547;
    --accent-ink: #1b1200;
    --accent-soft: rgba(255, 181, 71, 0.13);
    --ok: #63d4a4;
    --ok-soft: rgba(99, 212, 164, 0.12);
    --danger: #f18d7d;
    --danger-soft: rgba(241, 141, 125, 0.12);
    --shadow: 0 24px 50px -30px rgba(0, 0, 0, 0.9);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #070b0f;
  --panel: #0d151d;
  --line: rgba(168, 194, 210, 0.14);
  --line-strong: rgba(168, 194, 210, 0.26);
  --text: #e8eef2;
  --muted: #8a9aa5;
  --accent: #ffb547;
  --accent-ink: #1b1200;
  --accent-soft: rgba(255, 181, 71, 0.13);
  --ok: #63d4a4;
  --ok-soft: rgba(99, 212, 164, 0.12);
  --danger: #f18d7d;
  --danger-soft: rgba(241, 141, 125, 0.12);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
button, input, select { font: inherit; color: inherit; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 24px; border-bottom: 1px solid var(--line); background: var(--panel);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.brand-mark { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); flex: none; }
.brand-mark svg { width: 22px; height: 22px; }
.brand small { display: block; font: 10px/1.2 var(--mono); letter-spacing: .14em; color: var(--muted); }
.brand b { font-size: 16px; }
.who { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.who .chip { padding: 3px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 14px; border-radius: 9px; border: 1px solid var(--line-strong); background: var(--panel);
  cursor: pointer; font-size: 13px; text-decoration: none; color: var(--text); white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.ghost { border-color: transparent; background: none; }
.btn.small { padding: 4px 10px; font-size: 12px; }
.btn.danger { color: var(--danger); }
.btn:disabled { opacity: .5; cursor: default; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

input[type=text], input[type=password], input:not([type]), select {
  width: 100%; padding: 9px 11px; border: 1px solid var(--line-strong); border-radius: 9px; background: var(--panel);
}
label.field { display: grid; gap: 5px; font-size: 12px; color: var(--muted); }
.err { color: var(--danger); font-size: 13px; min-height: 1.2em; margin: 0; }

/* login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.login-card { width: min(400px, 100%); background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 32px 28px; box-shadow: var(--shadow); }
.login-card h1 { margin: 18px 0 4px; font-size: 22px; }
.login-card p.sub { margin: 0 0 22px; color: var(--muted); font-size: 13px; }
.login-card form { display: grid; gap: 14px; }
.login-card .btn.primary { width: 100%; padding: 11px; font-size: 14px; }

/* projects */
.page { max-width: 1120px; margin: 0 auto; padding: 32px 24px 64px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.kicker { font: 11px/1.2 var(--mono); letter-spacing: .14em; color: var(--muted); margin: 0 0 6px; text-transform: uppercase; }
.page-head h1 { margin: 0; font-size: 26px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.card {
  display: block; padding: 18px 18px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  text-decoration: none; color: inherit; transition: border-color .15s, transform .15s;
}
a.card:hover { border-color: var(--accent); transform: translateY(-1px); }
.card .code { font: 600 13px var(--mono); color: var(--accent); letter-spacing: .04em; }
.card h3 { margin: 6px 0 4px; font-size: 16px; }
.card .meta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; font-size: 12px; color: var(--muted); }
.tag { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 6px; font-size: 12px; background: var(--accent-soft); color: var(--accent); }
.tag.ok { background: var(--ok-soft); color: var(--ok); }
.tag.grey { background: rgba(120, 135, 145, .14); color: var(--muted); }
.tag.danger { background: var(--danger-soft); color: var(--danger); }
.empty { padding: 48px 16px; text-align: center; color: var(--muted); background: var(--panel); border: 1px dashed var(--line-strong); border-radius: 14px; }

/* admin */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 18px; overflow-x: auto; }
.tabs button { border: 0; background: none; padding: 10px 14px; cursor: pointer; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.panel-head h2 { margin: 0; font-size: 15px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-weight: 500; color: var(--muted); font-size: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
td small { display: block; color: var(--muted); font-size: 12px; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.members { display: flex; gap: 6px; flex-wrap: wrap; }

dialog {
  width: min(560px, calc(100vw - 32px)); border: 1px solid var(--line); border-radius: 16px; padding: 0;
  background: var(--panel); color: var(--text); box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(8, 14, 20, .45); }
.dlg-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.dlg-head b { font-size: 16px; }
.dlg-body { padding: 18px 20px; display: grid; gap: 14px; max-height: 65vh; overflow: auto; }
.dlg-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 20px; border-top: 1px solid var(--line); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.member-row { display: grid; grid-template-columns: 1fr 140px; gap: 10px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--line); }
.member-row:last-child { border-bottom: 0; }
.hint { font-size: 12px; color: var(--muted); margin: 0; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); padding: 10px 16px; border-radius: 10px; background: var(--text); color: var(--bg); font-size: 13px; opacity: 0; transition: .2s; pointer-events: none; z-index: 50; }
.toast.show { opacity: 1; }

@media (max-width: 640px) {
  .topbar { padding: 12px 16px; }
  .who .name { display: none; }
  .page { padding: 22px 16px 48px; }
  .row2 { grid-template-columns: 1fr; }
  th, td { padding: 9px 10px; }
}

.card-actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
[hidden] { display: none !important; }