:root {
  --xanh-chinh: #0f4c81;
  --xanh-dam: #0a3660;
  --xanh-nhat: #e8f1f8;
  --nen: #f4f6f8;
  --trang: #ffffff;
  --vien: #dbe2e8;
  --chu-chinh: #1c2733;
  --chu-phu: #5c6b7a;
  --xanh-la: #2e7d32;
  --vang: #b8860b;
  --do: #c62828;
  --xam: #78828c;
  --bo-tron: 10px;
  --bong: 0 1px 3px rgba(15, 34, 58, 0.08), 0 1px 2px rgba(15, 34, 58, 0.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--nen);
  color: var(--chu-chinh);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--xanh-chinh); }

.an { display: none !important; }

/* ---------- Layout ---------- */
#man-hinh-dang-nhap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: linear-gradient(160deg, var(--xanh-dam) 0%, var(--xanh-chinh) 55%, #1668a3 100%);
}

.khung-dang-nhap {
  background: var(--trang);
  width: 100%;
  max-width: 380px;
  border-radius: 14px;
  padding: 32px 28px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}

.khung-dang-nhap h1 {
  font-size: 1.2rem;
  text-align: center;
  color: var(--xanh-dam);
  margin-bottom: 4px;
}
.khung-dang-nhap .phu-de {
  text-align: center;
  color: var(--chu-phu);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.logo-vien {
  width: 56px; height: 56px; border-radius: 14px;
  background: var(--xanh-chinh);
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 1.3rem;
  margin: 0 auto 14px auto;
}

label { display: block; font-size: 0.85rem; margin-bottom: 6px; color: var(--chu-phu); font-weight: 600; }

input, select, textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--vien);
  border-radius: 8px;
  font-size: 0.95rem;
  margin-bottom: 16px;
  background: var(--trang);
  color: var(--chu-chinh);
  font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--xanh-chinh); box-shadow: 0 0 0 3px var(--xanh-nhat); }

button {
  cursor: pointer;
  font-family: inherit;
}

.nut {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--xanh-chinh);
  color: white;
  font-size: 0.95rem;
  font-weight: 600;
}
.nut:hover { background: var(--xanh-dam); }
.nut:disabled { opacity: 0.6; cursor: not-allowed; }
.nut.nho { width: auto; padding: 8px 14px; font-size: 0.85rem; }
.nut.phu { background: var(--trang); color: var(--xanh-chinh); border: 1px solid var(--xanh-chinh); }
.nut.phu:hover { background: var(--xanh-nhat); }
.nut.nguy-hiem { background: var(--do); }
.nut.nguy-hiem:hover { background: #a01f1f; }

.thong-bao-loi {
  background: #fdecea; color: var(--do); padding: 10px 12px; border-radius: 8px;
  font-size: 0.85rem; margin-bottom: 14px; display: none;
}
.thong-bao-loi.hien { display: block; }

/* ---------- App shell ---------- */
#app {
  display: none;
  min-height: 100vh;
}
#app.hien { display: flex; flex-direction: column; }

header.top-bar {
  background: var(--xanh-chinh);
  color: white;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 20;
}
header.top-bar .ten-app { font-weight: 700; font-size: 0.95rem; }
header.top-bar .ten-app small { display: block; font-weight: 400; opacity: 0.85; font-size: 0.72rem; }
header.top-bar .nguoi-dung-info { font-size: 0.8rem; text-align: right; }
header.top-bar button.dang-xuat {
  background: rgba(255,255,255,0.15); color: white; border: none; padding: 6px 10px;
  border-radius: 6px; font-size: 0.78rem; margin-left: 8px;
}

.bo-cuc-chinh { flex: 1; display: flex; }

nav.menu-ben {
  width: 220px;
  background: var(--trang);
  border-right: 1px solid var(--vien);
  padding: 14px 0;
  flex-shrink: 0;
}
nav.menu-ben button {
  display: flex; align-items: center; gap: 10px;
  width: 100%; text-align: left; padding: 11px 18px;
  background: none; border: none; color: var(--chu-chinh); font-size: 0.9rem;
  border-left: 3px solid transparent;
}
nav.menu-ben button.dang-chon { background: var(--xanh-nhat); color: var(--xanh-chinh); border-left-color: var(--xanh-chinh); font-weight: 600; }
nav.menu-ben button:hover { background: var(--nen); }

main.noi-dung { flex: 1; padding: 20px; max-width: 1200px; width: 100%; margin: 0 auto; padding-bottom: 90px; }

/* Thanh điều hướng dưới cùng cho mobile */
nav.menu-duoi {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--trang); border-top: 1px solid var(--vien);
  z-index: 20;
  padding-bottom: env(safe-area-inset-bottom);
}
nav.menu-duoi .hang { display: flex; }
nav.menu-duoi button {
  flex: 1; background: none; border: none; padding: 8px 4px 6px 4px;
  color: var(--chu-phu); font-size: 0.68rem; display: flex; flex-direction: column; align-items: center; gap: 3px;
}
nav.menu-duoi button .icon { font-size: 1.15rem; }
nav.menu-duoi button.dang-chon { color: var(--xanh-chinh); font-weight: 700; }

h2.tieu-de-trang { font-size: 1.15rem; margin: 0 0 16px 0; color: var(--xanh-dam); }

/* ---------- Cards / grid ---------- */
.luoi-the {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.the-thong-ke {
  background: var(--trang); border-radius: var(--bo-tron); padding: 16px;
  box-shadow: var(--bong); border-left: 4px solid var(--xanh-chinh);
}
.the-thong-ke .so { font-size: 1.6rem; font-weight: 700; color: var(--xanh-dam); }
.the-thong-ke .nhan { font-size: 0.78rem; color: var(--chu-phu); margin-top: 2px; }
.the-thong-ke.canh-bao { border-left-color: var(--do); }
.the-thong-ke.canh-bao .so { color: var(--do); }
.the-thong-ke.thanh-cong { border-left-color: var(--xanh-la); }
.the-thong-ke.thanh-cong .so { color: var(--xanh-la); }

.hop {
  background: var(--trang); border-radius: var(--bo-tron); box-shadow: var(--bong);
  padding: 16px; margin-bottom: 16px;
}

/* ---------- Table ---------- */
.gioi-thieu-giam-doc { border-left: 4px solid var(--xanh-chinh); }
.gioi-thieu-giam-doc .chuc-vu { margin: 0 0 6px; color: var(--chu-phu); font-size: 0.85rem; }
.gioi-thieu-giam-doc h3 { margin: 0 0 16px; color: var(--xanh-dam); font-size: 1.2rem; }
.gioi-thieu-giam-doc h4 { margin: 0 0 6px; color: var(--xanh-chinh); font-size: 0.95rem; }
.gioi-thieu-giam-doc p:last-child { margin: 0; line-height: 1.7; font-size: 0.9rem; }
.gioi-thieu-giam-doc h2 { margin: 0 0 12px; color: var(--xanh-dam); font-size: 1.2rem; }
.gioi-thieu-giam-doc .tieu-de-nang-luc { margin: 0 0 6px; font-size: 0.95rem; }
.khung-dang-nhap .gioi-thieu-giam-doc { background: var(--xanh-nhat); box-shadow: none; }
header.top-bar .ten-app .giam-doc-header { margin-top: 5px; font-weight: 600; opacity: 1; }

.bang-du-lieu { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.bang-du-lieu th, .bang-du-lieu td { padding: 10px 8px; text-align: left; border-bottom: 1px solid var(--vien); }
.bang-du-lieu th { color: var(--chu-phu); font-weight: 600; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.3px; }
.bang-du-lieu tbody tr:hover { background: var(--nen); }
.bang-cuon { overflow-x: auto; }

/* ---------- Badge trạng thái ---------- */
.nhan-trang-thai {
  display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: 0.72rem; font-weight: 600; white-space: nowrap;
}
.tt-chua_phan_cong { background: #eceff1; color: #455a64; }
.tt-da_phan_cong { background: #e3f2fd; color: #1565c0; }
.tt-da_nhan { background: #ede7f6; color: #5e35b1; }
.tt-dang_thuc_hien { background: #fff8e1; color: #b8860b; }
.tt-hoan_thanh { background: #e8f5e9; color: #2e7d32; }
.tt-huy { background: #eceff1; color: #78828c; text-decoration: line-through; }
.tt-qua_han { background: #fdecea; color: #c62828; }

.the-nhiem-vu {
  background: var(--trang); border-radius: 10px; padding: 14px; margin-bottom: 10px;
  box-shadow: var(--bong); border-left: 4px solid var(--xam);
}
.the-nhiem-vu.qh { border-left-color: var(--do); }
.the-nhiem-vu.ht { border-left-color: var(--xanh-la); }
.the-nhiem-vu .dong-tren { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.the-nhiem-vu .ma { font-weight: 700; color: var(--xanh-dam); font-size: 0.85rem; }
.the-nhiem-vu .noi-dung { font-size: 0.92rem; margin-bottom: 6px; }
.the-nhiem-vu .meta { font-size: 0.78rem; color: var(--chu-phu); line-height: 1.5; }
.the-nhiem-vu .hang-nut { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }

/* ---------- Modal ---------- */
.lop-phu {
  position: fixed; inset: 0; background: rgba(15,34,58,0.5);
  display: none; align-items: flex-end; justify-content: center; z-index: 50;
}
.lop-phu.hien { display: flex; }
.hop-modal {
  background: var(--trang); border-radius: 16px 16px 0 0; width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto; padding: 22px;
}
@media (min-width: 640px) {
  .lop-phu { align-items: center; }
  .hop-modal { border-radius: 14px; }
}
.hop-modal .dau-modal { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.hop-modal .dau-modal h3 { margin: 0; font-size: 1.05rem; color: var(--xanh-dam); }
.hop-modal .dong-modal { background: none; border: none; font-size: 1.3rem; color: var(--chu-phu); }

.hang-2-cot { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
@media (max-width: 480px) { .hang-2-cot { grid-template-columns: 1fr; } }

.chu-phu-nho { font-size: 0.78rem; color: var(--chu-phu); margin-top: -10px; margin-bottom: 14px; }

.thanh-toolbar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; justify-content: space-between; }
.thanh-toolbar .nhom-trai { display: flex; gap: 10px; flex-wrap: wrap; }

.rong { text-align: center; color: var(--chu-phu); padding: 30px 10px; font-size: 0.88rem; }

.canh-bao-hop {
  background: #fff8e1; border: 1px solid #ffe082; color: #8d6e00;
  padding: 10px 12px; border-radius: 8px; font-size: 0.82rem; margin-bottom: 14px;
}

.dang-tai { text-align: center; padding: 30px; color: var(--chu-phu); }

/* ---------- Thống kê năng suất ---------- */
.thanh-tien-tro {
  background: linear-gradient(90deg, #4caf50 0%, #4caf50 100%, #e0e0e0 100%, #e0e0e0 100%);
  height: 20px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: white;
  font-weight: bold;
  text-shadow: 1px 1px 1px rgba(0,0,0,0.3);
}
.bang-thong-ke {
  background: var(--trang); border-radius: var(--bo-tron); box-shadow: var(--bong);
  padding: 16px; margin-bottom: 16px;
}
.trang-tieu-de {
  margin-bottom: 20px;
}
.trang-tieu-de h2 {
  font-size: 1.35rem; color: var(--xanh-dam); margin: 0;
}

/* ---------- Responsive ---------- */
.chat-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 16px; }
.chat-layout h3 { margin: 0 0 12px; color: var(--xanh-dam); }
.chat-status { font-size: 0.85rem; color: var(--chu-phu); }
.chat-notification { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; padding: 12px 16px; background: var(--xanh-nhat); border-bottom: 1px solid var(--vien); font-size: 0.88rem; }
.chat-notification button { overflow-wrap: anywhere; max-width: 100%; }
.chat-unread-badge { display: inline-block; background: var(--do); color: white; padding: 2px 7px; border-radius: 12px; font-size: 0.72rem; }
.chat-group { width: 100%; text-align: left; border: 1px solid var(--vien); border-radius: 8px; background: var(--trang); padding: 12px; margin-bottom: 8px; overflow-wrap: anywhere; }
.chat-group.selected { background: var(--xanh-nhat); border-color: var(--xanh-chinh); }
.chat-group span { display: block; margin-top: 4px; color: var(--chu-phu); font-size: 0.78rem; }
.chat-room { min-width: 0; }
.chat-room h3, .chat-room details { overflow-wrap: anywhere; }
.chat-room details { font-size: 0.85rem; margin-bottom: 12px; }
.chat-messages { height: 380px; overflow-y: auto; padding: 12px; margin: 12px 0; background: var(--nen); border-radius: 8px; }
.chat-message { background: var(--trang); border: 1px solid var(--vien); border-radius: 10px; padding: 10px 12px; margin: 0 12% 12px 0; overflow-wrap: anywhere; }
.chat-message.mine { background: var(--xanh-nhat); margin-right: 0; margin-left: 12%; }
.chat-message strong { font-size: 0.82rem; color: var(--xanh-dam); }
.chat-message p { white-space: pre-wrap; margin: 6px 0; line-height: 1.5; }
.chat-message time { font-size: 0.72rem; color: var(--chu-phu); }
.chat-contacts { max-height: 220px; overflow-y: auto; border: 1px solid var(--vien); border-radius: 8px; }
.chat-contacts label { display: flex; align-items: center; gap: 8px; padding: 6px; }
.chat-contacts input { width: auto; margin: 0; }
#chat-tao-loi { color: var(--do); }
nav.menu-duoi .hang { overflow-x: auto; }
nav.menu-duoi button { min-width: 64px; }
@media (max-width: 640px) {
  .chat-layout { grid-template-columns: minmax(0, 1fr); }
  .chat-sidebar { max-height: 220px; overflow-y: auto; }
  .chat-messages { height: 320px; }
}

@media (max-width: 820px) {
  nav.menu-ben { display: none; }
  nav.menu-duoi { display: block; }
  main.noi-dung { padding: 14px; }
}


/* ---------- Vỏ ứng dụng mobile 2026-09 ---------- */
:where(button, a, input, select, textarea):focus-visible {
  outline: 3px solid #79b8ff;
  outline-offset: 2px;
}
.loi-chao-dang-nhap {
  margin: 0 0 20px;
  text-align: center;
  color: var(--chu-phu);
  font-size: 0.9rem;
  line-height: 1.5;
}
.ten-nguoi-dung {
  display: inline-block;
  max-width: min(42vw, 420px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: middle;
}
.menu-them-lop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.menu-them-nen {
  position: absolute;
  inset: 0;
  width: 100%;
  border: 0;
  background: rgba(15, 34, 58, 0.54);
}
.menu-them-panel {
  position: relative;
  width: 100%;
  max-width: 560px;
  padding: 18px 16px calc(18px + env(safe-area-inset-bottom));
  border-radius: 18px 18px 0 0;
  background: var(--trang);
  box-shadow: 0 -10px 30px rgba(15, 34, 58, 0.18);
}
.menu-them-dau {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.menu-them-dau h2 { margin: 0; color: var(--xanh-dam); font-size: 1.05rem; }
.menu-them-dong {
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: var(--nen);
  color: var(--chu-chinh);
  font-size: 1.5rem;
}
.menu-them-luoi {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.menu-them-luoi button {
  min-height: 52px;
  padding: 10px 12px;
  border: 1px solid var(--vien);
  border-radius: 10px;
  background: var(--trang);
  color: var(--chu-chinh);
  text-align: left;
  font-size: 0.88rem;
}
.menu-them-luoi button.dang-chon {
  border-color: var(--xanh-chinh);
  background: var(--xanh-nhat);
  color: var(--xanh-chinh);
  font-weight: 700;
}
.dashboard-hanh-dong {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.dashboard-hanh-dong button {
  min-height: 92px;
  padding: 14px;
  border: 1px solid var(--vien);
  border-radius: var(--bo-tron);
  background: var(--trang);
  box-shadow: var(--bong);
  color: var(--chu-chinh);
  text-align: left;
}
.dashboard-hanh-dong strong { display: block; margin-bottom: 5px; color: var(--xanh-dam); font-size: 1.25rem; }
.dashboard-hanh-dong span { color: var(--chu-phu); font-size: 0.82rem; line-height: 1.4; }
.dashboard-hanh-dong .khancap { border-left: 4px solid var(--do); }
.dashboard-hanh-dong .canhbao { border-left: 4px solid var(--vang); }

@media (max-width: 820px) {
  body { padding-bottom: env(safe-area-inset-bottom); }
  header.top-bar {
    min-height: 60px;
    padding: 9px 12px;
    padding-top: calc(9px + env(safe-area-inset-top));
  }
  header.top-bar .ten-app small { display: none; }
  header.top-bar .nguoi-dung-info { display: flex; align-items: center; min-width: 0; }
  header.top-bar button.dang-xuat { min-width: 44px; min-height: 44px; margin-left: 6px; }
  main.noi-dung { padding: 14px 12px calc(92px + env(safe-area-inset-bottom)); }
  input, select, textarea { min-height: 44px; font-size: 16px; }
  textarea { min-height: 88px; }
  .nut, .nut.nho { min-height: 44px; padding: 10px 14px; }
  nav.menu-duoi .hang { overflow: visible; }
  nav.menu-duoi button { min-width: 0; min-height: 56px; padding: 7px 2px 5px; }
  nav.menu-duoi button .icon { font-size: 1.1rem; }
  .dashboard-hanh-dong { grid-template-columns: 1fr; gap: 8px; }
  .dashboard-hanh-dong button { min-height: 72px; }
  .luoi-the { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hop-modal { padding-bottom: calc(22px + env(safe-area-inset-bottom)); }
  .hop-modal .dong-modal { min-width: 44px; min-height: 44px; }
}

@media (max-width: 380px) {
  .khung-dang-nhap { padding: 24px 20px; }
  .ten-nguoi-dung { max-width: 32vw; }
  nav.menu-duoi button { font-size: 0.62rem; }
  .menu-them-luoi { grid-template-columns: 1fr; }
}

.tieu-de-khoi { margin: 0 0 12px; color: var(--xanh-dam); font-size: 0.98rem; }

/* Messenger layout: isolated from the management screens. */
#chat-status:empty { display: none; }
.chat-modern { grid-template-columns: 300px minmax(0, 1fr); gap: 0; border: 1px solid #dce4ee; border-radius: 16px; overflow: hidden; background: white; height: min(740px, calc(100dvh - 210px)); min-height: 440px; }
.chat-modern .hop { margin: 0; border: 0; border-radius: 0; box-shadow: none; }
.chat-modern .chat-sidebar { padding: 0; display: flex; flex-direction: column; min-height: 0; border-right: 1px solid #e4eaf2; max-height: none; overflow: hidden; }
.chat-sidebar-head { padding: 20px 16px 12px; }
.chat-sidebar-head input { margin: 8px 0 12px; background: #f2f5f9; border-radius: 10px; font-size: 14px; }
.chat-filters { display: flex; gap: 6px; }
.chat-filters button { border: 0; background: transparent; color: #58677d; border-radius: 20px; padding: 8px 12px; cursor: pointer; font-weight: 600; }
.chat-filters button[aria-pressed="true"] { color: #0866dc; background: #e8f2ff; }
#chat-nhom { overflow-y: auto; flex: 1; padding: 4px 8px; }
.chat-modern .chat-group { display: flex; align-items: center; gap: 12px; border: 0; padding: 14px 10px; margin: 2px 0; border-radius: 10px; cursor: pointer; }
.chat-modern .chat-group:hover { background: #f0f6ff; }
.chat-modern .chat-group.selected { background: #e5f0ff; }
.chat-avatar, .chat-modern .chat-group .chat-avatar { display: inline-flex; flex: 0 0 44px; width: 44px; height: 44px; align-items: center; justify-content: center; margin: 0; border-radius: 50%; background: #dcecff; color: #1263bd; font-size: 15px; font-weight: 700; }
.chat-modern .chat-group:nth-child(3n+2) .chat-avatar { background: #e8e2fb; color: #7956b1; }
.chat-modern .chat-group:nth-child(3n) .chat-avatar { background: #daf2ec; color: #28786a; }
.chat-modern .chat-group .chat-group-copy { flex: 1; min-width: 0; text-align: left; margin: 0; }
.chat-group-copy strong { display: block; color: #172b47; font-size: 14px; }
.chat-modern .chat-group .chat-group-copy span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
.chat-modern .chat-unread-badge { flex: 0 0 auto; background: #0875ee; }
.chat-modern .chat-room { display: flex; flex-direction: column; padding: 0; min-height: 0; }
.chat-modern .chat-room > .thanh-toolbar { margin: 0; padding: 14px 20px; gap: 12px; border-bottom: 1px solid #e8edf4; flex-wrap: nowrap; }
.chat-modern .chat-room h3 { flex: 1; margin: 0; font-size: 17px; min-width: 0; }
.chat-modern #chat-goi { background: #eaf3ff; color: #0866d5; border: 0; white-space: nowrap; }
.chat-modern #chat-goi-huong-dan { margin: 0; padding: 8px 20px; font-size: 12px; }
.chat-modern #chat-thanh-vien { padding: 0 20px; margin: 0 0 8px; }
.chat-modern #chat-thanh-vien summary { cursor: pointer; color: #697a91; }
.chat-modern #chat-cu { align-self: center; margin: 6px; }
.chat-modern .chat-messages { height: auto; flex: 1; min-height: 100px; margin: 0; padding: 22px; border-radius: 0; background: #edf2f8; overscroll-behavior: contain; }
.chat-modern .chat-message { width: fit-content; max-width: 82%; margin: 0 auto 12px 0; border: 0; border-radius: 4px 16px 16px; box-shadow: 0 1px 2px #1b355414; padding: 10px 14px; }
.chat-modern .chat-message.mine { margin-left: auto; margin-right: 0; background: #d9ebff; border-radius: 16px 4px 16px 16px; }
.chat-modern .chat-message p { font-size: 15px; }
.chat-modern .chat-message time { display: block; text-align: right; }
.chat-modern #chat-gui { padding: 12px 18px; border-top: 1px solid #dfe7f0; }
.chat-modern #chat-gui > label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.chat-modern #chat-noi-dung { border: 0; background: #f6f8fb; resize: vertical; min-height: 58px; max-height: 150px; margin: 0; font-size: 16px; }
.chat-compose-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; gap: 8px; }
.chat-compose-actions small { color: #8491a2; font-size: 11px; }
.chat-compose-actions .nut { background: #0875ee; border-color: #0875ee; }
#chat-quay-lai { display: none; }
.chat-contact-list { max-height: 300px; overflow-y: auto; }
.chat-contact { width: 100%; display: flex; align-items: center; gap: 12px; background: white; border: 0; border-bottom: 1px solid #eef1f5; padding: 12px; text-align: left; cursor: pointer; }
.chat-contact:hover { background: #edf5ff; }
.chat-contact small { display: block; color: #77869b; margin-top: 4px; }
.chat-contact-action { margin-left: auto; color: #0866d5; font-size: 12px; }
#chat-danh-ba-loi { color: var(--do); }
@media (max-width: 820px) {
  .chat-modern { grid-template-columns: minmax(0, 1fr); height: calc(100dvh - 240px); min-height: 390px; }
  .chat-modern .chat-sidebar { border: 0; }
  .chat-modern .chat-room { display: none; }
  .chat-modern.chat-room-open .chat-sidebar { display: none; }
  .chat-modern.chat-room-open .chat-room { display: flex; }
  .chat-modern #chat-quay-lai { display: inline-block; padding: 8px 10px; font-size: 20px; }
  .chat-modern .chat-room > .thanh-toolbar { padding: 10px; gap: 8px; }
  .chat-modern .chat-room > .thanh-toolbar .chat-avatar { display: none; }
  .chat-modern .chat-room h3 { font-size: 15px; }
  .chat-modern .chat-messages { height: auto; padding: 14px 10px; }
  .chat-modern .chat-message { max-width: 90%; }
  .chat-modern #chat-gui { padding: 10px; }
  .chat-compose-actions small { visibility: hidden; }
}

/* Fuel invoice forms on desktop and phone. */
.hx-filters { display:flex; flex-wrap:wrap; gap:12px; }
.hx-filters label { flex:1 1 180px; min-width:0; }
.hx-filters input, .hx-filters select { width:100%; box-sizing:border-box; }
.hx-file { display:flex; align-items:center; flex-wrap:wrap; gap:8px; padding:10px 0; border-bottom:1px solid #ddd; }
.hx-file span { flex:1 1 180px; overflow-wrap:anywhere; }
#hx-detail-error, #hx-error { color:#c62828; }



/* Modern centered voice-call experience. */
.voice-call-layer {
  position: fixed; inset: 0; z-index: 9999; display: grid; place-items: center;
  padding: 20px; background: rgba(9, 28, 54, .62); backdrop-filter: blur(4px);
}
.voice-call-layer[hidden], .voice-call-layer [hidden] { display: none !important; }
.voice-call-card {
  position: relative; width: min(92vw, 390px); min-height: 430px; padding: 42px 28px 28px;
  border: 1px solid rgba(255,255,255,.7); border-radius: 24px; background: #fff;
  box-shadow: 0 28px 80px rgba(0, 25, 55, .32); text-align: center;
  animation: voice-call-enter .18s ease-out;
}
.voice-call-secure {
  position: absolute; top: 18px; right: 18px; padding: 6px 10px; border-radius: 999px;
  background: #e9fff2; color: #14804a; font-size: 12px; font-weight: 700;
}
.voice-call-avatar {
  display: grid; place-items: center; width: 92px; height: 92px; margin: 22px auto 16px;
  border-radius: 50%; background: linear-gradient(145deg,#dcecff,#c4ddfb); color: #1263bd;
  font-size: 29px; font-weight: 800; box-shadow: 0 8px 24px rgba(18,99,189,.18);
}
.voice-call-card h2 { margin: 0; color: #17283c; font-size: 25px; }
.voice-call-state { min-height: 24px; margin: 8px 0 2px; color: #63758a; font-size: 16px; }
.voice-call-time { display: block; min-height: 34px; margin: 7px 0 17px; color: #17283c; font-size: 25px; font-weight: 750; font-variant-numeric: tabular-nums; }
.voice-call-actions { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: center; gap: 16px; }
.voice-call-action { display: grid; justify-items: center; gap: 7px; width: 72px; color: #63758a; font-size: 12px; }
.voice-call-control {
  display: grid; place-items: center; width: 62px; height: 62px; padding: 0; border: 0;
  border-radius: 50%; background: #edf2f7; color: #344960; cursor: pointer;
  transition: transform .15s ease, background .15s ease;
}
.voice-call-control:hover { transform: translateY(-2px); background: #e2eaf2; }
.voice-call-control:focus-visible { outline: 3px solid #75aff0; outline-offset: 3px; }
.voice-call-control.active { background: #dcecff; color: #1263bd; }
.voice-call-control.accept { background: #19a563; color: #fff; }
.voice-call-control.end { background: #df3d4b; color: #fff; }
.voice-call-icon { width: 27px; height: 27px; }
.voice-call-close {
  margin-top: 22px; padding: 9px 18px; border: 0; border-radius: 10px;
  background: #edf3fa; color: #263b51; font-weight: 700; cursor: pointer;
}
.voice-call-card audio { display: none; }
@keyframes voice-call-enter { from { opacity: 0; transform: translateY(12px) scale(.98); } }
@media (max-width: 480px) {
  .voice-call-layer { padding: 12px; align-items: end; }
  .voice-call-card { width: 100%; min-height: 405px; padding: 38px 18px 22px; border-radius: 24px 24px 16px 16px; }
  .voice-call-secure { top: 14px; right: 14px; }
  .voice-call-avatar { width: 84px; height: 84px; margin-top: 20px; }
}
@media (prefers-reduced-motion: reduce) { .voice-call-card { animation: none; } }