:root {
  --bg: #f4f5f7; --panel: #fff; --text: #1d2430; --muted: #667085; --line: #e1e4ea;
  --primary: #2456c7; --primary-text: #fff; --danger: #c22f2f; --warn-bg: #fff4e0; --warn: #9a5b00;
  --ok-bg: #e5f6ec; --ok: #18794a; --mine-bg: #e6eeff;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 "Malgun Gothic", system-ui, sans-serif; }
button, input, select { font: inherit; }
header { background: var(--panel); border-bottom: 1px solid var(--line); padding: 10px 16px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; position: sticky; top: 0; z-index: 5; }
header h1 { font-size: 17px; margin: 0; }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav button { border: 0; background: none; padding: 7px 12px; border-radius: 6px; cursor: pointer; color: var(--muted); }
nav button.on { background: var(--mine-bg); color: var(--primary); font-weight: 700; }
.who { margin-left: auto; color: var(--muted); font-size: 13px; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
main { max-width: 1100px; margin: 16px auto; padding: 0 16px 48px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.toolbar input, .toolbar select { padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); min-width: 0; }
.toolbar .grow { flex: 1 1 180px; }
.btn { border: 1px solid var(--line); background: var(--panel); color: var(--text); padding: 6px 11px; border-radius: 6px; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-text); }
.btn.danger { color: var(--danger); }
.btn:disabled { opacity: .55; cursor: wait; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; margin-bottom: 8px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row .info { flex: 1 1 260px; min-width: 0; }
.name { font-weight: 700; overflow-wrap: anywhere; }
.meta { color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.badge { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 10px; background: var(--ok-bg); color: var(--ok); margin-left: 6px; font-weight: 400; }
.badge.lock { background: var(--warn-bg); color: var(--warn); }
.badge.mine { background: var(--mine-bg); color: var(--primary); }
.notice { background: var(--warn-bg); border: 1px solid #f1d8a8; border-radius: 8px; padding: 12px 14px; margin-bottom: 10px; }
h2 { font-size: 16px; margin: 20px 0 8px; }
.empty { color: var(--muted); padding: 28px; text-align: center; }
table { width: 100%; border-collapse: collapse; }
td, th { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 14px; vertical-align: top; overflow-wrap: anywhere; }
th { color: var(--muted); font-weight: 400; }
.login { max-width: 360px; margin: 12vh auto; padding: 0 16px; }
.login form { display: grid; gap: 10px; }
.login input, .modal input[type=text], .modal input[type=password] { padding: 10px; border: 1px solid var(--line); border-radius: 6px; width: 100%; }
.error { color: var(--danger); font-size: 14px; }
.backdrop { position: fixed; inset: 0; background: rgba(15,23,42,.45); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 20; }
.modal { background: var(--panel); border-radius: 10px; padding: 18px; width: 100%; max-width: 620px; max-height: 85vh; overflow: auto; }
.modal h3 { margin: 0 0 10px; font-size: 16px; overflow-wrap: anywhere; }
.modal .foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.modal label { display: block; margin: 10px 0 4px; font-size: 14px; color: var(--muted); }
#toast { position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%); background: #1d2430; color: #fff; padding: 10px 16px; border-radius: 8px; opacity: 0; pointer-events: none; transition: opacity .2s; max-width: calc(100vw - 32px); z-index: 30; }
#toast.show { opacity: 1; }
@media (max-width: 640px) {
  .log-table thead { display: none; }
  .log-table tr { display: block; padding: 8px 0; border-bottom: 1px solid var(--line); }
  .log-table td { display: inline; border: 0; padding: 0 6px 0 0; }
  .log-table td:first-child { display: block; color: var(--muted); font-size: 13px; }
  .actions .btn { padding: 8px 12px; }
}