:root {
  /* APP TỔNG: cùng bảng màu trắng/xám + xanh dương với các mảng khác (trước đây be/cam) */
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #f3f4f6;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #2563eb;
  --accent-ink: #ffffff;
  --accent-soft: #eff6ff;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --warn: #b45309;
  --warn-soft: #fffbeb;
  --ok: #15803d;
  --ok-soft: #f0fdf4;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  --track-off: #9ca3af;
  --measure: 60ch; /* khoảng 80 chữ tiếng Việt mỗi dòng */
  color-scheme: light;
}

/* (đã bỏ chế độ tối — giữ giao diện sáng như các mảng khác) */

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

h1, h2, h3 { margin: 0; line-height: 1.25; text-wrap: balance; }
p, li, blockquote, td { text-wrap: pretty; }
h1 { font-size: 22px; font-weight: 700; }
h2 { font-size: 16px; font-weight: 650; }
h3 { font-size: 14px; font-weight: 650; }
p { margin: 0; }
a { color: var(--accent); text-underline-offset: 2px; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--accent-soft); color: var(--text); }
::placeholder { color: var(--muted); opacity: 1; }

.muted { color: var(--muted); }
.small { font-size: 12.5px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.stack > * + * { margin-top: 12px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

button, .btn {
  font: inherit;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 8px 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
button:hover, .btn:hover { background: var(--surface-2); }
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.primary:hover, .btn.primary:hover { filter: brightness(1.05); background: var(--accent); }
button:disabled { opacity: 0.55; cursor: not-allowed; }
button.link { border: none; background: none; color: var(--accent); padding: 0; font-weight: 600; }

input[type="text"], input[type="password"], input[type="number"], select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
textarea { resize: vertical; min-height: 70px; }
label { font-weight: 600; display: block; margin-bottom: 4px; }

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 650;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  max-width: 100%;
  overflow-wrap: anywhere;
}
.badge.cao, .badge.danger { background: var(--danger-soft); color: var(--danger); }
.badge.trung_binh, .badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.thap, .badge.ok { background: var(--ok-soft); color: var(--ok); }

.notice { border-radius: 8px; padding: 10px 12px; font-size: 13px; }
.notice.error { background: var(--danger-soft); color: var(--danger); }
.notice.warn { background: var(--warn-soft); color: var(--warn); }
.notice.ok { background: var(--ok-soft); color: var(--ok); }
.notice.info { background: var(--surface-2); color: var(--muted); }

.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }

.spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--accent-soft); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite; display: inline-block; flex: none;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }

/* ---------- Riêng cho app VPS ---------- */
main { max-width: 1040px; margin: 0 auto; padding: 16px 16px 64px; }
/* APP TỔNG: nằm trong khung app chung → không còn thanh trên, nội dung choán hết khung */
body.trong-khung main { max-width: none; padding: 16px 20px 48px; }
.topbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; padding-bottom: 4px; }
.topbar nav { display: flex; gap: 4px; }
.topbar nav a { text-decoration: none; color: var(--muted); font-weight: 600; padding: 9px 12px; border-radius: 8px; }
.topbar .brand-name { font-size: 18px; font-weight: 700; }
.topbar nav a.active { background: var(--accent-soft); color: var(--accent); }
.login { max-width: 360px; margin: 12vh auto 0; }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.kpi .num { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi.alert .num { color: var(--danger); }
.kpi.warn .num { color: var(--warn); }
.chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
section > h2 { margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.count { font-size: 13px; color: var(--muted); font-weight: 500; }
.issue { border-top: 1px solid var(--border); padding: 14px 0; }
.issue:first-of-type { border-top: none; padding-top: 0; }
.issue-head { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: start; }
.bar { height: 6px; border-radius: 3px; background: var(--surface-2); margin: 8px 0; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--muted); border-radius: 3px; }
blockquote { margin: 6px 0; padding: 6px 10px; background: var(--surface-2); border-radius: 6px; color: var(--muted); font-style: italic; max-width: var(--measure); }
.suggest { background: var(--accent-soft); border-radius: 8px; padding: 8px 10px; margin-top: 8px; font-size: 13.5px; max-width: var(--measure); }
.card > p, .list-item p, .issue p { max-width: var(--measure); }
.refs { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.refs a { display: inline-flex; align-items: center; min-height: 28px; font-size: 12.5px; text-decoration: none; padding: 3px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); }
.refs a:hover { color: var(--accent); border-color: var(--accent); }
.list-item { border-top: 1px solid var(--border); padding: 10px 0; }
.list-item:first-of-type { border-top: none; padding-top: 0; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 6px; border-top: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; border-top: none; }
td.num { white-space: nowrap; font-variant-numeric: tabular-nums; }
.table-wrap { overflow-x: auto; }
.page-row { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; padding: 10px 0; border-top: 1px solid var(--border); }
.page-row:first-child { border-top: none; }
.page-row input[type="checkbox"], .check input[type="checkbox"], .check input[type="radio"] { width: 18px; height: 18px; accent-color: var(--accent); flex: none; }
.page-row .token-fix { grid-column: 2 / 4; display: flex; gap: 8px; }
.check { display: flex; gap: 8px; align-items: center; font-weight: 500; }
.check select, .check input[type="number"] { width: auto; }
code { background: var(--surface-2); padding: 1px 6px; border-radius: 5px; font-size: 13px; word-break: break-all; }
.steps { margin: 6px 0 0; padding-left: 20px; }
.steps li + li { margin-top: 4px; }
@media (max-width: 760px) { .kpis { grid-template-columns: repeat(2, 1fr); } }

/* Công tắc bật/tắt và danh sách giờ gửi */
.switch { position: relative; display: inline-block; width: 46px; height: 26px; flex: none; margin: 0; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch .slider { position: absolute; inset: 0; background: var(--track-off); border-radius: 999px; cursor: pointer; transition: background 0.15s; }
.switch .slider::before { content: ""; position: absolute; width: 20px; height: 20px; left: 3px; top: 3px; background: #fff; border-radius: 50%; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.25); transition: transform 0.15s; }
.switch input:checked + .slider { background: var(--accent); }
.switch input:checked + .slider::before { transform: translateX(20px); }
.switch input:focus-visible + .slider { outline: 2px solid var(--accent); outline-offset: 2px; }
.sched-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.sched-row select { width: auto; min-width: 150px; }
input[type="time"] { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.icon-btn { border: none; background: none; color: var(--danger); padding: 6px; }
.icon-btn:hover { background: var(--danger-soft); }

/* Bảng so sánh page (trang Báo cáo) */
.plist { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); overflow: hidden; }
.plist-head, .plist-row { display: grid; grid-template-columns: minmax(0, 2fr) repeat(5, minmax(0, 0.8fr)); gap: 8px; align-items: center; padding: 10px 14px; }
.plist-head { font-size: 12.5px; color: var(--muted); font-weight: 600; background: var(--surface-2); }
.plist-row { border-top: 1px solid var(--border); color: inherit; text-decoration: none; }
.plist-row:hover { background: var(--surface-2); }
.plist-row:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: 0; }
.plist .name { font-weight: 600; min-width: 0; overflow-wrap: anywhere; }
.plist .name .sub { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: 12.5px; color: var(--muted); font-weight: 400; }
.plist .n .sub { display: block; font-size: 11.5px; color: var(--muted); font-weight: 400; }
.plist .n { font-variant-numeric: tabular-nums; text-align: right; }
.plist .hot { color: var(--danger); font-weight: 700; }
.plist .low { color: var(--warn); font-weight: 700; }
@media (max-width: 640px) {
  .plist-head { display: none; }
  .plist-row { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 8px; padding: 12px; }
  .plist-row .name { grid-column: 1 / -1; }
  .plist .n { text-align: left; }
  .plist .n::before { content: attr(data-label); display: block; font-size: 11.5px; color: var(--muted); font-weight: 500; }
}

/* Danh sách "Gọi ngay" */
.call { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 12px; align-items: center; padding: 10px 0; border-top: 1px solid var(--border); }
.call:first-of-type { border-top: none; padding-top: 0; }
.call .who { font-weight: 600; overflow-wrap: anywhere; }
.call .why { color: var(--muted); font-size: 12.5px; }
.call .btn { grid-row: 1 / span 2; grid-column: 2; padding: 6px 12px; }

/* Thanh nhảy nhanh tới từng mục (trang chi tiết page) */
.jump { padding-top: 8px; display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; }
.jump::-webkit-scrollbar { display: none; }
.jump button { font-size: 12.5px; padding: 6px 10px; white-space: nowrap; flex: none; }
section[id] { scroll-margin-top: 200px; }

/* Câu trả lời mẫu: phần gửi khách tách khỏi phần dịch */
.reply { background: var(--accent-soft); border-radius: 8px; padding: 10px 12px; margin-top: 8px; max-width: var(--measure); }
.reply .label { font-weight: 600; }
.reply .gloss { display: block; margin-top: 4px; color: var(--muted); font-size: 12.5px; }
.reply-actions { margin-top: 6px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

summary { cursor: pointer; font-weight: 600; padding: 4px 0; }
@media (pointer: coarse) {
  .refs a, .reply-actions button, .topbar nav a, .topbar button.link, .call .btn, summary { min-height: 40px; }
}

/* Phần chỉ số cố định trên đầu khi cuộn, chỉ nội dung bên dưới cuộn */
.sticky-head { position: sticky; top: 0; z-index: 6; background: var(--bg); padding: 8px 0; box-shadow: 0 6px 8px -8px rgba(31, 27, 22, 0.25); }
.sticky-head .kpi { padding: 10px 14px; }
.sticky-head .kpi .num { font-size: 24px; line-height: 1.15; }
.kpi-sub { display: block; font-variant-numeric: tabular-nums; }
@media (max-width: 760px) {
  .sticky-head .kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
  .sticky-head .kpi { padding: 8px; }
  .sticky-head .kpi .num { font-size: 18px; }
  .sticky-head .kpi .small { font-size: 11px; line-height: 1.25; }
}