:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --ink: #16191f;
  --muted: #5f6673;
  --line: #e2e5ea;
  --line-strong: #c9ced6;
  --accent: #1f3a5f;
  --accent-ink: #ffffff;
  --ok: #15803d;
  --ok-bg: #e8f6ed;
  --warn: #a16207;
  --warn-bg: #fdf6e3;
  --err: #b91c1c;
  --err-bg: #fdecec;
  --draft: #6d28d9;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.08);
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); }
body { font-size: 14px; line-height: 1.4; }
h1, h2, h3 { margin: 0 0 8px; line-height: 1.2; }
h1 { font-size: 20px; }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
a { color: var(--accent); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.hidden { display: none !important; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.stack > * + * { margin-top: 8px; }

button, .btn {
  font: inherit; cursor: pointer; border-radius: 6px; border: 1px solid var(--line-strong);
  background: var(--panel); color: var(--ink); padding: 7px 12px; min-height: 34px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
}
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.primary:hover { filter: brightness(1.1); }
button.danger { color: var(--err); border-color: #f0b4b4; }
button.ghost { border-color: transparent; background: transparent; }
button:disabled { opacity: 0.5; cursor: default; }
button.sm { padding: 3px 8px; min-height: 26px; font-size: 12px; }

input, select, textarea {
  font: inherit; border: 1px solid var(--line-strong); border-radius: 6px; padding: 7px 9px; background: #fff; color: var(--ink); min-height: 34px; max-width: 100%;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid #93b4e0; outline-offset: 1px; }
label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 3px; }
.field { margin-bottom: 10px; }
.field input, .field select, .field textarea { width: 100%; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.grid2 > *, .grid3 > * { min-width: 0; }
input[type=date], input[type=time] { min-width: 0; }
@media (max-width: 420px) { .grid3 { grid-template-columns: 1fr 1fr; } }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px; }
.badge { display: inline-block; font-size: 11px; padding: 1px 7px; border-radius: 999px; background: #eef0f3; color: var(--muted); white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.err { background: var(--err-bg); color: var(--err); }
.badge.draft { background: #f1ebfd; color: var(--draft); }

table.data { width: 100%; border-collapse: collapse; background: var(--panel); }
table.data th, table.data td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.data th { font-size: 12px; color: var(--muted); font-weight: 600; background: #fafbfc; position: sticky; top: 0; }
table.data tr:hover td { background: #fafbfd; }

/* toast + modal */
#toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 100; display: flex; flex-direction: column; gap: 6px; align-items: center; pointer-events: none; }
#toast .t { background: #1f2430; color: #fff; padding: 9px 14px; border-radius: 8px; box-shadow: var(--shadow); max-width: 90vw; }
#toast .t.err { background: var(--err); }
.modal-back { position: fixed; inset: 0; background: rgba(15, 20, 30, 0.45); z-index: 50; display: flex; align-items: flex-start; justify-content: center; padding: 6vh 16px; overflow: auto; }
.modal { color: var(--ink); background: var(--panel); border-radius: 10px; width: 100%; max-width: 460px; padding: 18px; box-shadow: 0 10px 40px rgba(0,0,0,.25); }
.modal.wide { max-width: 720px; }
.modal h2 { margin-bottom: 12px; }
.modal .actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 14px; flex-wrap: wrap; }
.clash { font-size: 12px; padding: 6px 8px; border-radius: 6px; margin-top: 4px; }
.clash.error { background: var(--err-bg); color: var(--err); }
.clash.warning { background: var(--warn-bg); color: var(--warn); }

/* top bar */
.topbar { background: var(--accent); color: #fff; display: flex; align-items: center; gap: 14px; padding: 0 16px; height: 50px; position: sticky; top: 0; z-index: 20; }
.topbar .brand { font-weight: 700; letter-spacing: 0.2px; }
.topbar nav { display: flex; gap: 2px; overflow-x: auto; }
.topbar nav a { color: #d6e0ee; text-decoration: none; padding: 7px 11px; border-radius: 6px; white-space: nowrap; }
.topbar nav a.active, .topbar nav a:hover { background: rgba(255,255,255,0.14); color: #fff; }
.topbar .who { font-size: 12px; color: #d6e0ee; white-space: nowrap; }
.topbar button { background: transparent; color: #fff; border-color: rgba(255,255,255,0.35); }
.topbar .bell { position: relative; }
.topbar .bell .count { position: absolute; top: -4px; right: -4px; background: #ef4444; color: #fff; border-radius: 999px; font-size: 10px; padding: 0 5px; }
main.page { padding: 16px; max-width: 1500px; margin: 0 auto; }

/* login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; }
.login-card .logo { font-weight: 800; font-size: 22px; color: var(--accent); margin-bottom: 4px; }

@media (max-width: 760px) {
  .topbar { flex-wrap: wrap; height: auto; padding: 8px 12px; gap: 8px; }
  .topbar nav { order: 3; width: 100%; }
  .topbar #who { display: none; }
  main.page { padding: 12px; }
  .toolbar .title { min-width: 0; font-size: 14px; }
}