/* Quản lý số văn bản — bảng màu và thang đo lấy nguyên từ bản thiết kế.
   Không tải font hay ảnh từ bên ngoài: chạy được trong mạng nội bộ không có Internet. */

:root {
  --bg: #f4f5f6;
  --surface: #ffffff;
  --line: #d8dbdf;
  --ink: #212121;
  --ink-2: #333333;
  --ink-3: #777777;
  --ink-4: #9b9d96;
  --black: #000000;

  --orange: #ff5700;
  --orange-dark: #cc4600;
  --orange-tint: #ffead0;
  --orange-edge: #ffd3a8;

  --slate: #37505c;
  --slate-dark: #24434a;

  --blue: #2c4f6a;
  --blue-tint: #eaf0f5;
  --blue-edge: #c3d3df;

  --red: #cc0000;
  --red-tint: #fbe9e9;
  --red-edge: #f0c7c7;

  --font-sans: 'Mulish', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --control-h: 40px;
  --radius: 6px;
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  margin: 0;
  background: var(--bg);
  font: 400 14px/1.5 var(--font-sans);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

input, select, textarea, button { font-family: inherit; font-size: 14px; }
a { color: var(--orange-dark); text-decoration: none; }
a:hover { color: var(--orange); text-decoration: underline; }

/* ------------------------------------------------------------- nguyên tố */

.label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
}
.label-accent { color: var(--orange); }
.label-dim { color: var(--ink-4); }

.mono { font-family: var(--font-mono); }
.hint { font-size: 12px; color: var(--ink-4); }
.muted { font-size: 13px; color: var(--ink-3); }
.hidden { display: none !important; }

.field { display: flex; flex-direction: column; gap: 6px; }

.input, .select, .textarea {
  height: var(--control-h);
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--surface);
  outline: none;
  min-width: 0;
}
.select { padding: 0 10px; }
.textarea { height: auto; padding: 10px 12px; line-height: 1.5; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { border-color: var(--slate); }
.input.bad, .textarea.bad { border-color: var(--red-edge); background: var(--red-tint); }
.input:disabled, .select:disabled { background: var(--bg); color: var(--ink-4); }

.btn {
  height: var(--control-h);
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink-2);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
}
.btn:hover:not(:disabled) { border-color: var(--slate); background: var(--bg); }
.btn:disabled { cursor: default; color: var(--ink-4); background: var(--bg); }

.btn-primary {
  border-color: var(--orange);
  background: var(--orange);
  color: var(--surface);
  font-weight: 700;
  padding: 0 18px;
}
.btn-primary:hover:not(:disabled) {
  border-color: var(--orange-dark);
  background: var(--orange-dark);
  color: var(--surface);
}
.btn-primary:disabled { border-color: var(--line); background: var(--bg); color: var(--ink-4); }

.btn-secondary { border-color: var(--slate); color: var(--slate); font-weight: 700; }
.btn-secondary:hover:not(:disabled) {
  border-color: var(--slate-dark);
  background: var(--bg);
  color: var(--slate-dark);
}

.btn-danger { border-color: var(--red-edge); color: var(--red); font-weight: 700; }
.btn-danger:hover:not(:disabled) { border-color: var(--red); background: var(--red-tint); color: var(--red); }

.btn-solid-danger { border-color: var(--red); background: var(--red); color: var(--surface); font-weight: 700; }
.btn-solid-danger:hover:not(:disabled) { border-color: var(--red); background: var(--red-tint); color: var(--red); }

.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; }
.btn-link {
  border: none;
  background: none;
  padding: 4px 6px;
  font-size: 13px;
  color: var(--slate);
  cursor: pointer;
  text-decoration: underline;
}
.btn-link:hover { color: var(--slate-dark); }
.btn-link.danger { color: var(--red); }
.btn-link:disabled { color: var(--ink-4); cursor: default; text-decoration: none; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--slate);
}
.badge-orange { color: var(--orange-dark); background: var(--orange-tint); border-color: var(--orange-edge); }
.badge-blue { color: var(--blue); background: var(--blue-tint); border-color: var(--blue-edge); }
.badge-red { color: var(--red); background: var(--red-tint); border-color: var(--red-edge); }

.note {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  padding: 11px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--orange-edge);
  background: var(--orange-tint);
  color: var(--orange-dark);
  font-size: 13px;
  line-height: 1.5;
}
.note svg { flex: 0 0 auto; margin-top: 1px; }
.note-error { border-color: var(--red-edge); background: var(--red-tint); color: var(--red); }
.note button { margin-left: auto; }

.section {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.section-tight { padding: 16px; gap: 12px; }

/* -------------------------------------------------------------- bố cục */

.app { min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 18px 32px;
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-dot { width: 9px; height: 9px; background: var(--orange); display: inline-block; }
.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
}
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.tabs {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 0 32px;
  display: flex;
  gap: 28px;
  overflow-x: auto;
}
.tab {
  appearance: none;
  border: none;
  background: none;
  padding: 16px 0 13px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-3);
  border-bottom: 3px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.tab:hover { color: var(--ink-2); }
.tab.active { color: var(--black); border-bottom-color: var(--orange); }
.tab-count { font-family: var(--font-mono); font-size: 12px; color: var(--ink-3); font-weight: 400; }

main { flex: 1; padding: 24px 32px 40px; display: flex; flex-direction: column; gap: 16px; }

.filters { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.filters .field { flex: 0 0 auto; }
.filters .field.grow { flex: 1 1 300px; min-width: 200px; }
.filters-foot {
  display: flex;
  gap: 10px;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 12px;
  flex-wrap: wrap;
}
.filters-actions { margin-left: auto; display: flex; gap: 10px; flex-wrap: wrap; }

/* --------------------------------------------------------------- bảng */

.table-wrap { background: var(--surface); border: 1px solid var(--line); overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead tr { background: var(--bg); border-bottom: 1px solid var(--line); }
th {
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  white-space: nowrap;
}
td {
  padding: 13px 14px;
  vertical-align: top;
  line-height: 1.45;
  border-bottom: 1px solid var(--line);
}
tbody tr:hover { background: var(--bg); }
.cell-num { font-family: var(--font-mono); font-weight: 600; color: var(--black); }
.cell-mono { font-family: var(--font-mono); color: var(--ink-2); }
.cell-title { font-weight: 700; color: var(--black); }
.cell-note { color: var(--ink-3); font-size: 13px; white-space: pre-line; }
.cell-file { font-size: 13px; word-break: break-all; }
.cell-file.empty { color: var(--ink-4); }
.cell-actions { text-align: right; white-space: nowrap; }
.empty-state { padding: 56px 24px; text-align: center; color: var(--ink-3); }

/* ------------------------------------------------------- cấu trúc số */

.segments { display: flex; gap: 10px; align-items: stretch; flex-wrap: wrap; }
.segment {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 9px 10px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 150px;
}
.segment.is-seq { border-color: var(--orange-edge); }
.segment-head { display: flex; align-items: center; gap: 4px; }
.segment-pos { font-family: var(--font-mono); font-size: 11px; font-weight: 600; color: var(--ink-4); }
.segment-tools { margin-left: auto; display: flex; gap: 3px; }
.icon-btn {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  color: var(--slate);
  cursor: pointer;
  padding: 0;
}
.icon-btn:hover:not(:disabled) { border-color: var(--slate); background: var(--bg); }
.icon-btn:disabled { color: var(--line); cursor: default; }
.icon-btn.danger { color: var(--red); }
.icon-btn.danger:hover { border-color: var(--red); background: var(--red-tint); }
.segment select, .segment input {
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 13px;
  background: var(--surface);
  color: var(--ink);
  outline: none;
}
.segment input { font-family: var(--font-mono); padding: 0 9px; }
.segment select:focus, .segment input:focus { border-color: var(--slate); }
.segment-preview {
  /* đẩy xuống đáy thẻ để các thành phần cao thấp khác nhau vẫn thẳng hàng */
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  padding: 5px 6px;
  border-radius: 4px;
  background: var(--bg);
  color: var(--slate);
  overflow: hidden;
  text-overflow: ellipsis;
}
.segment.is-seq .segment-preview { background: var(--orange-tint); color: var(--orange-dark); }
.segment-add {
  min-width: 118px;
  border: 1px dashed var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  padding: 14px 12px;
  color: var(--slate);
  font-size: 13px;
  font-weight: 700;
}
.segment-add:hover { border-color: var(--slate); background: var(--bg); color: var(--slate-dark); }

.next-number {
  border: 1px solid var(--orange-edge);
  background: var(--orange-tint);
  padding: 16px 18px;
  display: flex;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
}
.next-number-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 30px;
  letter-spacing: -0.01em;
  color: var(--orange-dark);
}
.next-number .muted { margin-left: auto; }

.presets { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.preset {
  padding: 6px 11px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: var(--font-mono);
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-2);
}
.preset:hover { border-color: var(--slate); }
.preset.active { border-color: var(--orange); background: var(--orange-tint); color: var(--orange-dark); }

.toggle { display: flex; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; width: fit-content; }
.toggle button {
  height: var(--control-h);
  min-width: 84px;
  padding: 0 18px;
  border: none;
  font-weight: 700;
  cursor: pointer;
  background: var(--surface);
  color: var(--ink-3);
}
.toggle button.active { background: var(--slate); color: var(--surface); }

.rule {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.rule-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.rule-body { display: flex; flex-direction: column; gap: 7px; }
.rule-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.rule-title strong { font-size: 14px; color: var(--black); }
.rule p { margin: 0; font-size: 13px; color: var(--ink-2); line-height: 1.6; max-width: 780px; }
.rule .mono { font-weight: 600; color: var(--black); }
.rule del { color: var(--ink-4); font-family: var(--font-mono); font-weight: 400; }

.savebar {
  border-top: 1px solid var(--line);
  padding-top: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.savebar-status { font-size: 13px; color: var(--ink-3); }
.savebar-status.dirty { font-weight: 700; color: var(--orange-dark); }
.savebar-status.blocked { font-weight: 700; color: var(--red); }
.savebar-actions { margin-left: auto; display: flex; gap: 10px; }

.subtabs { display: flex; gap: 8px; flex-wrap: wrap; }
.subtab {
  height: 36px;
  padding: 0 16px;
  border-radius: var(--radius);
  font-weight: 700;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-2);
}
.subtab:hover { border-color: var(--slate); }
.subtab.active { border-color: var(--slate); background: var(--slate); color: var(--surface); }

.stack { display: flex; flex-direction: column; gap: 7px; }
.row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }
.row-top { display: flex; gap: 16px; align-items: flex-start; flex-wrap: wrap; }
.row-fields { display: flex; gap: 28px; align-items: flex-start; flex-wrap: wrap; }
.push { margin-left: auto; }
.page-title { font-size: 24px; font-weight: 700; letter-spacing: -0.02em; color: var(--black); }
.admin-chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: var(--radius); background: var(--orange-tint); border: 1px solid var(--orange-edge); }
.admin-chip span { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--orange-dark); }

.role-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.role-card { border: 1px solid var(--line); background: var(--surface); padding: 14px 16px; display: flex; flex-direction: column; gap: 11px; }
.role-card.is-admin { border-color: var(--orange-edge); }
.role-card ul { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 6px; }
.role-card li { font-size: 13px; line-height: 1.5; color: var(--ink-2); }
.role-card li.no { color: var(--ink-4); }
.role-card li.yes-admin { color: var(--orange-dark); font-weight: 700; }

.role-picker { display: flex; gap: 10px; flex-wrap: wrap; }
.role-option {
  flex: 1 1 165px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-2);
}
.role-option:hover { border-color: var(--slate); }
.role-option.active { border-color: var(--orange); background: var(--orange-tint); color: var(--orange-dark); }
.role-option strong { font-size: 14px; }
.role-option em { font-style: normal; font-size: 12px; line-height: 1.45; opacity: 0.85; }

.danger-zone { border: 1px solid var(--red-edge); background: var(--red-tint); padding: 16px 18px; display: flex; flex-direction: column; gap: 14px; }
.danger-zone p { margin: 0; font-size: 13px; color: var(--red); line-height: 1.6; max-width: 720px; }

/* -------------------------------------------------------------- đăng nhập */

.gate { flex: 1; display: flex; align-items: center; justify-content: center; padding: 40px 16px; }
.gate-inner { width: 100%; max-width: 424px; display: flex; flex-direction: column; gap: 16px; }
.gate-brand { display: flex; flex-direction: column; gap: 8px; }
.gate-brand .brand-name { font-size: 22px; }
.gate-brand .muted { padding-left: 19px; }
.gate-card { background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; }
.gate-form { padding: 24px; display: flex; flex-direction: column; gap: 16px; }
.gate-form .btn-primary { height: 44px; font-size: 15px; }
.gate-foot {
  border-top: 1px solid var(--line);
  background: var(--bg);
  padding: 16px 24px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.gate-foot p { margin: 0; font-size: 13px; color: var(--ink-2); line-height: 1.55; }
.gate-foot svg { flex: 0 0 auto; margin-top: 2px; }
.pw-wrap { position: relative; display: flex; }
.pw-wrap .input { flex: 1; padding-right: 74px; }
.pw-toggle {
  position: absolute;
  right: 6px;
  top: 6px;
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--slate);
  cursor: pointer;
}
.pw-toggle:hover { border-color: var(--slate); background: var(--bg); }

/* ------------------------------------------------------------- hộp thoại */

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.42);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 16px;
  overflow-y: auto;
  z-index: 50;
}
.dialog {
  width: 720px;
  max-width: 100%;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.dialog-narrow { width: 600px; }
.dialog-head { padding: 20px 24px; border-bottom: 1px solid var(--line); }
.dialog-title { margin-top: 6px; font-size: 22px; font-weight: 700; letter-spacing: -0.02em; color: var(--black); }
.dialog-body { padding: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.dialog-body .full { grid-column: 1 / -1; }
.dialog-foot {
  padding: 16px 24px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 12px;
}
.dialog-error { font-size: 13px; color: var(--red); line-height: 1.45; }
.dialog-foot .savebar-actions { margin-left: auto; }

.issued {
  grid-column: 1 / -1;
  border: 1px solid var(--orange-edge);
  background: var(--orange-tint);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.issued-value { font-family: var(--font-mono); font-weight: 600; font-size: 30px; color: var(--orange-dark); letter-spacing: -0.01em; }

.checkline { display: flex; align-items: flex-start; gap: 9px; cursor: pointer; }
.checkline input { width: 16px; height: 16px; margin-top: 2px; accent-color: var(--orange); cursor: pointer; }
.checkline span { font-size: 13px; color: var(--ink-2); line-height: 1.5; }

.file-drop {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  flex-wrap: wrap;
}
.file-drop input[type="file"] { font-size: 13px; color: var(--ink-2); min-width: 0; }

.toast-stack { position: fixed; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 10px; z-index: 80; max-width: 420px; }
.toast {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 3px solid var(--slate);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}
.toast.ok { border-left-color: var(--orange); }
.toast.err { border-left-color: var(--red); color: var(--red); }

.temp-password {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--orange-dark);
  background: var(--orange-tint);
  border: 1px solid var(--orange-edge);
  border-radius: var(--radius);
  padding: 10px 14px;
  user-select: all;
}

.audit-list { display: flex; flex-direction: column; gap: 0; }
.audit-row { display: flex; gap: 14px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13px; flex-wrap: wrap; }
.audit-row:last-child { border-bottom: none; }
.audit-when { font-family: var(--font-mono); color: var(--ink-3); flex: 0 0 128px; }
.audit-who { font-weight: 700; color: var(--ink); flex: 0 0 120px; }
.audit-what { color: var(--ink-2); flex: 1 1 240px; }

/* ------------------------------------------------------------- màn nhỏ */

@media (max-width: 860px) {
  .topbar, .tabs { padding-left: 16px; padding-right: 16px; }
  main { padding: 16px 16px 32px; }
  .role-cards { grid-template-columns: 1fr; }
  .dialog-body { grid-template-columns: 1fr; }
  .next-number .muted { margin-left: 0; }
}

/* ------------------------------------------------------------- tiện dụng
   CSP của máy chủ là style-src 'self', nên thuộc tính style= trong JS sẽ bị
   chặn. Mọi chỉnh nhỏ về kích thước hay màu đều phải qua class ở đây. */

.w96 { width: 96px; }
.w104 { width: 104px; }
.w110 { width: 110px; }
.w118 { width: 118px; }
.w120 { width: 120px; }
.w136 { width: 136px; }
.w140 { width: 140px; }
.w158 { width: 158px; }
.w160 { width: 160px; }
.w190 { width: 190px; }
.w270 { width: 270px; }
.mw640 { max-width: 640px; }
.mw680 { max-width: 680px; }
.ta-right { text-align: right; }
.m0 { margin: 0; }
.grow-240 { flex: 1 1 240px; }
.inline-icon { display: inline-flex; align-items: center; gap: 8px; }

.next-num { font-weight: 600; opacity: 0.85; }
.label-on-tint { color: var(--orange-dark); }
.lane { letter-spacing: 0.04em; }
.num-next { font-size: 17px; color: var(--orange-dark); }
.num-later { font-size: 15px; }
.row-turn { background: var(--bg); }

.warn-row { display: flex; gap: 10px; align-items: flex-start; }
.reset-arrow { padding-bottom: 11px; }
.reset-val { font-weight: 600; color: var(--red); }

.savebar-card { padding: 14px 22px; }
.savebar.flat { border-top: none; padding-top: 0; }

.user-name { font-weight: 700; color: var(--black); }
.user-title { margin-top: 3px; }
.status-sub { margin-top: 4px; }
.cell-dim { font-size: 13px; color: var(--ink-3); }
.confirm-text { margin: 0; font-size: 14px; line-height: 1.6; color: var(--ink-2); }