:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1d212a;
  --line: #262b36;
  --text: #e6e8eb;
  --muted: #8b94a3;
  --accent: #2b6cff;
  --ok: #4ade80;
  --warn: #fbbf24;
  --err: #f87171;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.mt { margin-top: 12px; }

/* ------------------------------------------------------------ Đăng nhập */
.login-wrap { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.login-card {
  width: 100%; max-width: 340px; background: var(--panel);
  border: 1px solid var(--line); border-radius: 16px; padding: 28px;
}
.login-card h1 { margin: 0 0 4px; font-size: 20px; }
.login-card p { margin: 0 0 18px; }
.login-card input { width: 100%; margin-bottom: 12px; }

/* ------------------------------------------------------------ Khung */
#app { display: grid; grid-template-columns: 218px 1fr; min-height: 100vh; }

.sidebar {
  background: var(--panel); border-right: 1px solid var(--line);
  padding: 20px 14px; display: flex; flex-direction: column; gap: 6px;
  position: sticky; top: 0; height: 100vh;
}
.brand { font-size: 15px; font-weight: 600; margin-bottom: 18px; padding: 0 8px; }
.sidebar nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.sidebar nav a {
  color: var(--muted); text-decoration: none; padding: 9px 12px;
  border-radius: 8px; font-weight: 500;
}
.sidebar nav a:hover { background: var(--panel-2); color: var(--text); }
.sidebar nav a.active { background: var(--accent); color: #fff; }

main { padding: 26px 30px 60px; max-width: 1180px; }
.view { display: none; }
.view.active { display: block; }

.view-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px; flex-wrap: wrap; margin-bottom: 18px;
}
.view-head h2 { margin: 0 0 2px; font-size: 20px; }
.view-head p { margin: 0; font-size: 13px; }

/* ------------------------------------------------------------ Thành phần */
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px; margin-bottom: 16px;
}
.card h3 { margin: 0 0 14px; font-size: 14px; font-weight: 600; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.row-gap { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.row-between h3 { margin: 0; }

.grid-2, .grid-3, .grid-4 { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

label { display: block; font-size: 12px; color: var(--muted); font-weight: 500; }
.block-label { display: block; margin-top: 12px; }
input, select, textarea {
  width: 100%; margin-top: 5px; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px;
  font: inherit; font-size: 13px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
textarea { resize: vertical; }
.check { display: flex; align-items: center; gap: 8px; margin-top: 12px; color: var(--text); font-size: 13px; }
.check input { width: auto; margin: 0; }
.search { max-width: 220px; margin: 0; }

.btn {
  border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  padding: 9px 15px; border-radius: 8px; font: inherit; font-size: 13px;
  font-weight: 500; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: #39414f; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--err); }
.btn.small { padding: 6px 11px; font-size: 12px; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.segmented {
  display: inline-flex; background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px; padding: 2px; gap: 2px;
}
.segmented button {
  border: 0; background: transparent; color: var(--muted);
  font: inherit; font-size: 12px; font-weight: 500;
  padding: 6px 14px; border-radius: 6px; cursor: pointer; white-space: nowrap;
}
.segmented button:hover { color: var(--text); }
.segmented button.active { background: var(--accent); color: #fff; }

.tag {
  display: inline-block; background: rgba(74,222,128,.14); color: var(--ok);
  border-radius: 5px; padding: 1px 6px; font-size: 10px; margin-left: 6px;
}
.hint { font-size: 12px; color: var(--muted); margin: 4px 0 18px; }

.callout {
  background: var(--panel-2); border: 1px solid var(--line);
  border-left: 3px solid var(--accent); border-radius: 8px;
  padding: 12px 14px; margin: 14px 0 18px; font-size: 12px; color: var(--muted);
}
.callout b { color: var(--text); }
.kv { width: 100%; border-collapse: collapse; margin-top: 8px; }
.kv td { padding: 5px 0; vertical-align: top; }
.kv td:first-child { white-space: nowrap; padding-right: 16px; }
.kv code {
  background: var(--bg); padding: 3px 7px; border-radius: 5px;
  color: var(--text); word-break: break-all; user-select: all;
}
.hint code {
  background: var(--panel-2); padding: 3px 7px; border-radius: 5px;
  color: var(--text); word-break: break-all;
}
.error { color: var(--err); font-size: 12px; margin-top: 10px; }
.warn {
  color: var(--warn); font-size: 12px; background: rgba(251,191,36,.1);
  border: 1px solid rgba(251,191,36,.25); border-radius: 8px; padding: 9px 12px; margin-bottom: 12px;
}

/* ------------------------------------------------------------ Danh sách file */
.filelist { max-height: 340px; overflow-y: auto; border: 1px solid var(--line); border-radius: 8px; }
.filelist .empty { padding: 22px; text-align: center; color: var(--muted); font-size: 13px; }
.frow {
  display: flex; align-items: center; gap: 10px; padding: 8px 12px;
  border-bottom: 1px solid var(--line); font-size: 13px;
}
.frow:last-child { border-bottom: 0; }
.frow:hover { background: var(--panel-2); }
.frow input[type=checkbox] { width: auto; margin: 0; flex: none; }
.frow .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.frow .sub { color: var(--muted); font-size: 11px; flex: none; }
.frow .kind {
  flex: none; font-size: 10px; padding: 1px 6px; border-radius: 4px;
  background: var(--panel-2); border: 1px solid var(--line); color: var(--muted);
}

.progress { margin-top: 12px; height: 22px; position: relative; background: var(--panel-2); border-radius: 6px; overflow: hidden; }
.progress > div { height: 100%; background: var(--accent); width: 0; transition: width .2s; }
.progress > span {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 11px; color: #fff;
}

/* ------------------------------------------------------------ Page card */
.page-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.page-card .top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.page-card .top strong { font-size: 14px; }

/* ------------------------------------------------------------ Bản nháp lịch */
.planlist { max-height: 560px; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; }
.plan-item {
  border: 1px solid var(--line); border-radius: 8px; padding: 12px; background: var(--panel-2);
}
.plan-item .meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; font-size: 12px; }
.plan-item .meta .page { font-weight: 600; color: var(--text); }
.plan-item .meta input[type=datetime-local] { width: auto; margin: 0; }
.plan-item textarea { margin-top: 0; font-size: 12px; }

/* ------------------------------------------------------------ Job */
.job {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 13px 16px; display: flex; gap: 14px; align-items: flex-start; flex-wrap: wrap;
}
.job .when { flex: none; width: 130px; font-size: 12px; color: var(--muted); }
.job .body { flex: 1; min-width: 220px; }
.job .body .page { font-weight: 600; font-size: 13px; }
.job .body .cap { color: var(--muted); font-size: 12px; margin-top: 3px; white-space: pre-wrap; }
.job .body .err { color: var(--err); font-size: 12px; margin-top: 5px; }
.job .acts { display: flex; gap: 6px; flex-wrap: wrap; }

.badge { font-size: 11px; padding: 2px 8px; border-radius: 20px; border: 1px solid var(--line); }
.badge.scheduled  { color: var(--muted); }
.badge.posted     { color: var(--ok);   border-color: rgba(74,222,128,.35); }
.badge.failed     { color: var(--err);  border-color: rgba(248,113,113,.35); }
.badge.processing { color: var(--warn); border-color: rgba(251,191,36,.35); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.chips span {
  font-size: 12px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 20px; padding: 4px 12px; color: var(--muted);
}

/* ------------------------------------------------------------ Toast */
.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--line); color: var(--text);
  padding: 11px 20px; border-radius: 10px; font-size: 13px; z-index: 50;
  box-shadow: 0 8px 28px rgba(0,0,0,.45); max-width: 90vw;
}
.toast.err { border-color: rgba(248,113,113,.5); color: var(--err); }
.toast.ok  { border-color: rgba(74,222,128,.5); }

@media (max-width: 900px) {
  #app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; align-items: center; overflow-x: auto; }
  .sidebar nav { flex-direction: row; }
  .brand { margin: 0 12px 0 0; }
  main { padding: 18px 16px 50px; }
  .two-col, .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}