:root {
  --bg: #0b0e14;
  --surface: #131722;
  --surface2: #1a2030;
  --border: #232b3d;
  --text: #e6e9f0;
  --text-dim: #8b93a7;
  --text-mute: #5a6378;
  --accent: #4f7cff;
  --accent2: #7c5cff;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --cyan: #06b6d4;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.hidden { display: none !important; }

/* ---------- navigation ---------- */
nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 56px;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 50;
}
nav .logo {
  font-size: 17px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-right: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
nav .logo-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
nav .nav-link {
  color: var(--text-dim);
  font-size: 13.5px;
  padding: 8px 16px;
  border-radius: 8px;
  transition: .15s;
  font-weight: 500;
  cursor: pointer;
  background: none;
  border: 0;
  font-family: inherit;
}
nav .nav-link:hover { color: var(--text); background: var(--surface2); }
nav .nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}
nav .nav-spacer { flex: 1; }
nav .nav-count { font-size: 12px; color: var(--text-mute); margin-right: 10px; }
nav .nav-logout {
  color: var(--text-mute);
  font-size: 13px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  background: none;
  font-family: inherit;
}
nav .nav-logout:hover { color: var(--red); border-color: var(--red); }

/* ---------- layout ---------- */
.page { padding: 24px; max-width: 1600px; margin: 0 auto; }
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
}
.toolbar { display: flex; justify-content: space-between; align-items: center; }
.toolbar h3 { font-size: 14px; color: var(--text); }

/* ---------- stat cards ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  position: relative;
  overflow: hidden;
  transition: .2s;
}
.stat-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-color, var(--accent));
}
.stat-card .icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  margin-bottom: 10px;
  background: rgba(79, 124, 255, .15);
}
.stat-card .label {
  font-size: 11.5px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .6px;
  margin-bottom: 4px;
  font-weight: 600;
}
.stat-card .value {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

/* ---------- charts ---------- */
.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); gap: 16px; }
.chart-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}
.chart-box h3 {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .8px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.chart-box h3::before {
  content: '';
  width: 3px;
  height: 14px;
  background: linear-gradient(180deg, var(--accent), var(--accent2));
  border-radius: 2px;
}
.chart-container { position: relative; }
.chart-container svg { width: 100%; height: auto; display: block; }
.chart-row { display: grid; grid-template-columns: 7.5rem 1fr 4.5rem; gap: 8px; align-items: center; margin-bottom: 5px; }
.chart-label {
  font-size: 11px;
  color: var(--text-dim);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chart-track { background: var(--surface2); border-radius: 4px; height: 16px; overflow: hidden; }
.chart-bar { height: 100%; border-radius: 4px; min-width: 2px; }
.chart-value { font-size: 11px; color: var(--text-mute); font-variant-numeric: tabular-nums; }
.empty-chart { color: var(--text-mute); font-size: 12px; padding: 12px 0; }

/* ---------- filters ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.filters input, .filters select {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 13px;
  border-radius: 9px;
  font-size: 13px;
  outline: none;
  transition: .15s;
  font-family: inherit;
}
.filters input:focus, .filters select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 124, 255, .15);
}
.filters input::placeholder { color: var(--text-mute); }
.filters .f-q { min-width: 240px; flex: 1; max-width: 340px; }
.filters select { max-width: 170px; }
.filters button {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  padding: 9px 20px;
  border-radius: 9px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
}
.filters button:hover { opacity: .9; }
.filters .btn-export { background: var(--surface2); border: 1px solid var(--border); color: var(--text-dim); }
.filters .btn-export:hover { color: #fff; border-color: var(--accent); }
.filters .btn-clear { background: transparent; color: var(--text-mute); padding: 9px 12px; }
.filters .btn-clear:hover { color: #fff; }
.deep-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
  padding: 0 4px;
}
.deep-toggle input { width: 14px; height: 14px; accent-color: var(--accent); cursor: pointer; }

/* ---------- results ---------- */
.record-count { font-size: 12.5px; color: var(--text-mute); margin-bottom: 10px; }
.record-count strong { color: var(--accent); font-size: 14px; }
.table-wrap {
  overflow: auto;
  max-height: calc(100vh - 340px);
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}
.table-wrap.tall { max-height: calc(100vh - 220px); }
table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
thead { position: sticky; top: 0; z-index: 2; }
th {
  background: var(--surface2);
  color: var(--text-dim);
  font-weight: 600;
  text-align: left;
  padding: 11px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
}
tbody tr:hover { background: var(--surface2); }
td.mono { font-family: Consolas, 'Courier New', monospace; font-size: 12px; }
.mask-toggle { cursor: pointer; color: var(--accent); font-family: Consolas, monospace; background: none; border: 0; padding: 0; }
.mask-toggle:hover { color: #7ea0ff; }
.mask-toggle.revealed { color: var(--red); }
.copy-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-mute);
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 10.5px;
  font-family: inherit;
}
.copy-btn:hover { color: #fff; border-color: var(--accent); }
.copy-btn.danger { color: var(--red); border-color: rgba(239, 68, 68, .35); }
.expired { color: var(--red); font-weight: 600; }
.exp-soon { color: var(--amber); font-weight: 600; }
.exp-good { color: var(--green); font-weight: 600; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 10.5px; font-weight: 600; }
.badge-visa { background: rgba(79, 124, 255, .15); color: #7ea0ff; }
.badge-mc { background: rgba(239, 68, 68, .15); color: #ff8a8a; }
.badge-amex { background: rgba(34, 197, 94, .15); color: #5eeaa0; }
.badge-disc { background: rgba(245, 158, 11, .15); color: #ffc966; }
.badge-other { background: rgba(139, 147, 167, .15); color: var(--text-dim); }
.pagination { display: flex; align-items: center; gap: 10px; margin-top: 16px; font-size: 13px; justify-content: center; flex-wrap: wrap; }
.pagination button {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 8px 16px;
  border-radius: 9px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
}
.pagination button:hover:not(:disabled) { background: var(--surface2); color: #fff; border-color: var(--accent); }
.pagination button:disabled { opacity: .35; cursor: default; }
.pagination .pg-info { color: var(--text-mute); font-variant-numeric: tabular-nums; }
.pagination select { background: var(--surface2); border: 1px solid var(--border); color: var(--text); padding: 7px 10px; border-radius: 8px; font-size: 13px; }
.loading { text-align: center; padding: 50px; color: var(--text-mute); font-size: 14px; }
.empty { text-align: center; padding: 70px; color: var(--text-mute); font-size: 14px; }

/* ---------- overlays ---------- */
.copy-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  padding: 10px 24px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  opacity: 0;
  transition: .25s;
  pointer-events: none;
  z-index: 100;
}
.copy-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.selection-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(90px);
  background: var(--surface2);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: .25s;
  z-index: 90;
  opacity: 0;
  pointer-events: none;
}
.selection-bar.show { transform: translateX(-50%) translateY(0); opacity: 1; pointer-events: auto; }
.selection-bar .sel-count { font-size: 13px; color: var(--accent); font-weight: 700; white-space: nowrap; }
.selection-bar button {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
  font-weight: 600;
  white-space: nowrap;
  font-family: inherit;
}
.selection-bar button.ghost { background: transparent; border: 1px solid var(--border); color: var(--text-dim); }
.selection-bar button.ghost:hover { color: #fff; border-color: var(--red); }
.row-check { cursor: pointer; width: 15px; height: 15px; accent-color: var(--accent); vertical-align: middle; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: .2s;
}
.modal-overlay.show { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  width: 480px;
  max-width: 95vw;
  max-height: 85vh;
  overflow: auto;
  padding: 24px;
}
.modal h2 { font-size: 16px; margin-bottom: 16px; }
.modal .summary { background: var(--surface2); border-radius: 10px; padding: 14px; margin-bottom: 14px; font-size: 12.5px; color: var(--text-dim); }
.modal .mode-choice label { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; cursor: pointer; font-size: 13.5px; }
.modal .random-opts { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; background: var(--surface2); border-radius: 10px; padding: 14px; }
.modal input[type="number"] {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  width: 120px;
}
.modal .checkline { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.modal .note { margin-top: 8px; font-size: 11.5px; color: var(--amber); line-height: 1.5; }
.modal .btn-row { display: flex; gap: 8px; }
.modal .btn-row button {
  padding: 9px 20px;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: inherit;
}
.modal .btn-start { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; }
.modal .btn-close { background: var(--surface2); border: 1px solid var(--border); color: var(--text-dim); }
.modal .ok { color: var(--green); }

/* ---------- login ---------- */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg);
}
.login-card {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
}
.login-card .logo {
  font-size: 26px;
  font-weight: 700;
  text-align: center;
  letter-spacing: -.5px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.login-sub { text-align: center; color: var(--text-mute); font-size: 13px; margin: 6px 0 28px; }
.login-card label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .6px;
}
.login-card .field { position: relative; }
.login-card input {
  width: 100%;
  padding: 12px 44px 12px 14px;
  font-size: 15px;
  color: var(--text);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 9px;
  outline: none;
  font-family: inherit;
}
.login-card input:focus { border-color: var(--accent); }
.login-card input:disabled { opacity: .5; }
.login-card .reveal {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: 0;
  color: var(--text-mute);
  cursor: pointer;
  font-size: 11px;
  padding: 8px;
  font-family: inherit;
}
.login-card .submit {
  width: 100%;
  margin-top: 20px;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  border: 0;
  border-radius: 9px;
  cursor: pointer;
  font-family: inherit;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}
.login-card .submit:disabled { opacity: .45; cursor: not-allowed; }
.msg { margin-top: 16px; padding: 11px 13px; border-radius: 8px; font-size: 13px; line-height: 1.45; display: none; }
.msg.show { display: block; }
.msg.error { background: rgba(239, 68, 68, .10); border: 1px solid rgba(239, 68, 68, .35); color: #fca5a5; }
.msg.warn { background: rgba(245, 158, 11, .10); border: 1px solid rgba(245, 158, 11, .35); color: #fcd34d; }
.msg.ok { background: rgba(34, 197, 94, .10); border: 1px solid rgba(34, 197, 94, .35); color: #86efac; }
.foot { margin-top: 24px; text-align: center; font-size: 11px; color: var(--text-mute); }

/* ---------- chart legend ---------- */
.chart-legend { margin-top: 12px; display: flex; flex-direction: column; gap: 4px; }
.legend-row { display: flex; align-items: center; gap: 8px; font-size: 11.5px; color: var(--text-dim); }
.legend-swatch { width: 10px; height: 10px; border-radius: 3px; flex: 0 0 auto; }

/* ---------- admin / api keys ---------- */
.toolbar-actions { display: flex; gap: 8px; align-items: center; }
.panel.notice { font-size: 12.5px; color: var(--text-dim); line-height: 1.6; }
.panel.notice strong { color: var(--text); }
.link-btn {
  background: none; border: 0; color: var(--accent); cursor: pointer;
  font-size: 12.5px; padding: 0 4px; font-family: inherit;
}
.link-btn:hover { text-decoration: underline; }
.modal.wide { width: 780px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.form-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--text-dim); }
.form-grid input, .modal textarea {
  background: var(--surface2); border: 1px solid var(--border); color: var(--text);
  padding: 8px 12px; border-radius: 8px; font-size: 13px; font-family: inherit; width: 100%;
}
.modal textarea { resize: vertical; font-family: Consolas, monospace; font-size: 12px; }
.checkline.stack { flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 14px; }
.keygen-choice { display: flex; gap: 16px; font-size: 13px; margin-bottom: 12px; flex-wrap: wrap; }
.keygen-choice label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
.key-reveal { border: 1px solid var(--amber); border-radius: 10px; padding: 14px; margin-bottom: 14px; }
.warn-inline { color: var(--amber); font-size: 12px; line-height: 1.5; margin-bottom: 10px; }
td.mono.small { font-size: 11px; color: var(--text-dim); }
.row-actions { display: flex; gap: 4px; }
.row-actions .copy-btn { padding: 3px 7px; font-size: 10px; }
table.mini { width: 100%; border-collapse: collapse; font-size: 11px; margin-top: 6px; }
table.mini th, table.mini td { padding: 4px 6px; border-bottom: 1px solid var(--border); text-align: left; }
.detail-line { font-size: 12.5px; color: var(--text-dim); margin-bottom: 5px; word-break: break-all; }
.detail-line strong { color: var(--text); }
.detail-section {
  font-size: 12px; color: var(--text); font-weight: 600; margin: 16px 0 8px;
  text-transform: uppercase; letter-spacing: .5px;
}

/* ---------- history cells ---------- */
td.filters-cell { max-width: 280px; font-size: 11px; color: var(--text-dim); }
td.status-completed { color: var(--green); font-weight: 600; font-size: 11.5px; }
td.status-partial { color: var(--amber); font-weight: 600; font-size: 11.5px; }
td.status-pending { color: var(--text-mute); font-weight: 600; font-size: 11.5px; }

*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: #2a3247; border-radius: 4px; }
*::-webkit-scrollbar-thumb:hover { background: #3a4260; }

@media (max-width: 768px) {
  .charts { grid-template-columns: 1fr; }
  .filters .f-q { min-width: 100%; }
  .chart-row { grid-template-columns: 5.5rem 1fr 4rem; }
}