:root {
  --bg: #f7f7f4;
  --panel: #ffffff;
  --ink: #1e1f24;
  --sub: #60636f;
  --brand: #0059ff;
  --danger: #c62828;
  --ok: #2e7d32;
  --line: #d7dae2;
  --shadow: 0 10px 30px rgba(15, 32, 64, 0.1);
  --bg-accent-1: #dce8ff;
  --bg-accent-2: #d8f8e9;
  --input-bg: #ffffff;
  --input-ink: #1e1f24;
  --btn-alt-bg: #eef3ff;
  --btn-alt-ink: #113070;
  --btn-danger-bg: #ffebee;
  --btn-danger-ink: #c62828;
  --kpi-bg: #fbfcff;
  --inline-panel-bg: #fcfdff;
  --table-bg: #ffffff;
  --thead-bg: #f2f5fb;
  --row-locked-bg: #fff7f7;
  --row-warning-bg: #fffdf5;
  --badge-active-bg: #e8f5e9;
  --badge-active-ink: #1b5e20;
  --badge-locked-bg: #ffebee;
  --badge-locked-ink: #b71c1c;
  --badge-cron-on-bg: #e3f2fd;
  --badge-cron-on-ink: #0d47a1;
  --badge-cron-off-bg: #f3f4f7;
  --badge-cron-off-ink: #4b5563;
  --risk-track-bg: #eceff5;
  --toggle-bg: #ffffff;
  --toggle-ink: #5a6070;
  --toggle-on-bg: #e3f2fd;
  --toggle-on-ink: #0d47a1;
  --toggle-off-bg: #f3f4f7;
  --toggle-off-ink: #374151;
  --code-bg: #f3f5f9;
}

.theme-dark {
  --bg: #11141a;
  --panel: #1b2029;
  --ink: #e6e9ef;
  --sub: #a9b0bf;
  --brand: #3d7eff;
  --danger: #ff6b6b;
  --ok: #6edb8f;
  --line: #2b3442;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --bg-accent-1: #1a2538;
  --bg-accent-2: #162a22;
  --input-bg: #0f1724;
  --input-ink: #e6e9ef;
  --btn-alt-bg: #2a364a;
  --btn-alt-ink: #d9e5ff;
  --btn-danger-bg: #47232c;
  --btn-danger-ink: #ffb4bf;
  --kpi-bg: #1f2631;
  --inline-panel-bg: #161d27;
  --table-bg: #1a2230;
  --thead-bg: #222d3d;
  --row-locked-bg: #2f1f25;
  --row-warning-bg: #312b1f;
  --badge-active-bg: #1f3c2d;
  --badge-active-ink: #9de2bc;
  --badge-locked-bg: #4a252d;
  --badge-locked-ink: #ffbec8;
  --badge-cron-on-bg: #1c3559;
  --badge-cron-on-ink: #b8d8ff;
  --badge-cron-off-bg: #2b3240;
  --badge-cron-off-ink: #c7cfdd;
  --risk-track-bg: #2a3343;
  --toggle-bg: #192233;
  --toggle-ink: #c3ccda;
  --toggle-on-bg: #1d3a63;
  --toggle-on-ink: #c3ddff;
  --toggle-off-bg: #2b3240;
  --toggle-off-ink: #d2d9e6;
  --code-bg: #212a38;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 10%, var(--bg-accent-1) 0%, transparent 35%),
    radial-gradient(circle at 90% 30%, var(--bg-accent-2) 0%, transparent 30%),
    var(--bg);
  font-family: "Segoe UI", "Arial", sans-serif;
}

.container {
  width: min(1100px, 94%);
  margin: 30px auto;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 20px;
}

h1, h2, h3 {
  margin: 0 0 12px;
}

p {
  margin: 0 0 12px;
  color: var(--sub);
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
}

input, select, button, textarea {
  font: inherit;
}

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--input-bg);
  color: var(--input-ink);
}

input::placeholder,
textarea::placeholder {
  color: var(--sub);
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 700;
}

.btn {
  background: var(--brand);
  color: #fff;
}

.btn-alt {
  background: var(--btn-alt-bg);
  color: var(--btn-alt-ink);
}

.btn-danger {
  background: var(--btn-danger-bg);
  color: var(--btn-danger-ink);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.theme-toggle-btn {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border: 1px solid var(--line);
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.theme-toggle-btn:hover {
  transform: translateY(-1px);
}

.theme-icon {
  position: absolute;
  font-size: 18px;
  line-height: 1;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.theme-icon-sun {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

.theme-icon-moon {
  opacity: 0;
  transform: scale(0.8) rotate(-15deg);
}

.theme-toggle-btn.is-dark .theme-icon-sun {
  opacity: 0;
  transform: scale(0.8) rotate(15deg);
}

.theme-toggle-btn.is-dark .theme-icon-moon {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 10px 0 12px;
}

.kpi-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--kpi-bg);
}

.kpi-label {
  font-size: 12px;
  color: var(--sub);
  margin-bottom: 4px;
}

.kpi-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
}

.row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.status {
  margin-top: 10px;
  font-weight: 600;
}

.status.error {
  color: var(--danger);
}

.status.ok {
  color: var(--ok);
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--table-bg);
}

.table-scroll {
  overflow-x: auto;
  overflow-y: auto;
  max-height: 420px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}

.key-table-scroll {
  max-height: 360px;
}

.table-scroll table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
}

th, td {
  border-bottom: 1px solid var(--line);
  padding: 9px 8px;
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

tr.key-row-locked {
  background: var(--row-locked-bg);
}

tr.key-row-warning {
  background: var(--row-warning-bg);
}

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  margin-right: 6px;
  margin-bottom: 6px;
}

.badge-lock-active {
  background: var(--badge-active-bg);
  color: var(--badge-active-ink);
}

.badge-lock-locked {
  background: var(--badge-locked-bg);
  color: var(--badge-locked-ink);
}

.badge-cron-on {
  background: var(--badge-cron-on-bg);
  color: var(--badge-cron-on-ink);
}

.badge-cron-off {
  background: var(--badge-cron-off-bg);
  color: var(--badge-cron-off-ink);
}

.risk-wrap {
  margin-top: 2px;
}

.risk-label {
  font-size: 12px;
  color: var(--sub);
  margin-bottom: 4px;
}

.risk-bar {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: var(--risk-track-bg);
  overflow: hidden;
}

.risk-fill {
  height: 100%;
  border-radius: 999px;
}

.risk-fill-low {
  background: #43a047;
}

.risk-fill-mid {
  background: #f9a825;
}

.risk-fill-high {
  background: #d32f2f;
}

.action-wrap {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.action-wrap button {
  padding: 8px 12px;
}

.cron-toggle {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: var(--toggle-bg);
}

.cron-toggle button {
  border: 0;
  border-radius: 0;
  padding: 6px 10px;
  min-width: 52px;
  font-size: 12px;
  font-weight: 800;
  color: var(--toggle-ink);
  background: transparent;
}

.cron-toggle button + button {
  border-left: 1px solid var(--line);
}

.cron-toggle button.active-on {
  background: var(--toggle-on-bg);
  color: var(--toggle-on-ink);
}

.cron-toggle button.active-off {
  background: var(--toggle-off-bg);
  color: var(--toggle-off-ink);
}

.bulk-toolbar {
  align-items: center;
  gap: 8px;
}

.bulk-toolbar input,
.bulk-toolbar select {
  min-height: 40px;
}

.btn-compact {
  padding: 6px 10px;
  border-radius: 7px;
  font-size: 13px;
  line-height: 1.1;
  white-space: nowrap;
}

.bulk-action-group {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.bulk-action-group .btn-compact {
  min-height: 34px;
}

.password-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.inline-password-panel {
  margin-top: 12px;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 12px;
  background: var(--inline-panel-bg);
}

.pass-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pass-row input {
  flex: 1;
}

.pass-row .btn-compact {
  min-width: 68px;
}

th {
  background: var(--thead-bg);
}

code {
  background: var(--code-bg);
  border-radius: 6px;
  padding: 1px 5px;
}

.hidden {
  display: none;
}

.small {
  font-size: 12px;
  color: var(--sub);
}

.log-success {
  color: var(--ok);
  font-weight: 700;
}

.log-error {
  color: var(--danger);
  font-weight: 700;
}

.admin-users-table {
  min-width: 1500px;
}

.admin-users-table th:nth-child(1),
.admin-users-table td:nth-child(1) {
  min-width: 56px;
}

.admin-users-table th:nth-child(2),
.admin-users-table td:nth-child(2) {
  min-width: 300px;
}

.admin-users-table th:nth-child(3),
.admin-users-table td:nth-child(3) {
  min-width: 320px;
}

.admin-users-table th:nth-child(4),
.admin-users-table td:nth-child(4),
.admin-users-table th:nth-child(5),
.admin-users-table td:nth-child(5) {
  min-width: 140px;
}

.admin-users-table th:nth-child(6),
.admin-users-table td:nth-child(6),
.admin-users-table th:nth-child(7),
.admin-users-table td:nth-child(7) {
  min-width: 170px;
}

.admin-users-table th:nth-child(8),
.admin-users-table td:nth-child(8) {
  min-width: 240px;
}

.admin-users-table td:nth-child(3) code {
  display: inline-block;
  max-width: 300px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: top;
}

.admin-users-table td:nth-child(4) select,
.admin-users-table td:nth-child(5) select {
  width: 126px;
  min-width: 126px;
}

.admin-user-list {
  display: grid;
  gap: 10px;
}

.admin-user-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: var(--panel);
}

.admin-user-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.admin-user-title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.2;
}

.admin-user-head code {
  display: inline-block;
  max-width: 420px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: top;
}

.admin-user-grid {
  margin-top: 10px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.admin-user-grid select {
  min-width: 140px;
}

@media (max-width: 900px) {
  .container {
    width: min(1100px, 96%);
    margin: 18px auto;
  }
  .card {
    padding: 16px;
  }
  .toolbar {
    align-items: flex-start;
    gap: 10px;
  }
  .toolbar .row {
    width: 100%;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .bulk-toolbar {
    align-items: stretch;
  }
  .bulk-action-group {
    width: 100%;
  }
  .btn-compact {
    width: auto;
  }
  th, td {
    font-size: 13px;
  }
  .table-scroll {
    max-height: 320px;
  }
  .key-table-scroll {
    max-height: 280px;
  }
  .pass-row {
    align-items: stretch;
  }
  .pass-row .btn-compact {
    min-width: 58px;
  }
  .admin-user-head {
    flex-direction: column;
  }
  .admin-user-head code {
    max-width: 100%;
  }
  .admin-user-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .admin-user-title {
    font-size: 18px;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 34px;
    line-height: 1.15;
  }
  h2 {
    font-size: 26px;
    line-height: 1.2;
  }
  .row {
    gap: 8px;
  }
  .row > button,
  .row > .btn,
  .row > .btn-alt,
  .row > .btn-danger {
    min-height: 38px;
  }
  .toolbar .row > button,
  .toolbar .row > .btn,
  .toolbar .row > .btn-alt,
  .toolbar .row > .btn-danger {
    flex: 1 1 auto;
  }
  #btn-theme-toggle {
    flex: 0 0 42px;
  }
  .kpi-grid {
    grid-template-columns: 1fr;
  }
  .bulk-action-group {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .bulk-action-group .btn-compact {
    width: 100%;
  }
  #user-search-email,
  #btn-clear-user-search,
  #user-page-size,
  #key-search,
  #btn-clear-key-filter,
  #bulk-update-interval,
  #bulk-update-cron,
  #log-search-api-key,
  #log-filter-status,
  #btn-clear-log-filter {
    max-width: none !important;
    width: 100%;
  }
  #users-list .row > button {
    flex: 1 1 140px;
  }
  #btn-refresh,
  #btn-logout,
  #btn-add-key,
  #btn-change-password,
  #btn-apply-bulk-update,
  #btn-select-filtered,
  #btn-clear-selected,
  #btn-apply-bulk-delete,
  #btn-clear-key-filter,
  #btn-clear-log-filter {
    width: 100%;
  }
  .action-wrap button {
    flex: 1 1 46%;
  }
  .action-wrap {
    gap: 6px;
  }
  .dashboard-table-scroll {
    overflow-x: hidden;
    padding: 8px;
  }
  .dashboard-key-table thead,
  .dashboard-log-table thead {
    display: none;
  }
  .dashboard-key-table,
  .dashboard-log-table,
  .dashboard-key-table tbody,
  .dashboard-log-table tbody,
  .dashboard-key-table tr,
  .dashboard-log-table tr,
  .dashboard-key-table td,
  .dashboard-log-table td {
    display: block;
    width: 100%;
  }
  .dashboard-key-table tr,
  .dashboard-log-table tr {
    border: 1px solid var(--line);
    border-radius: 10px;
    margin-bottom: 10px;
    padding: 8px;
    background: var(--panel);
  }
  .dashboard-key-table td,
  .dashboard-log-table td {
    border: 0;
    border-bottom: 1px dashed var(--line);
    padding: 8px 0 8px 42%;
    position: relative;
    min-height: 32px;
  }
  .dashboard-key-table td:last-child,
  .dashboard-log-table td:last-child {
    border-bottom: 0;
  }
  .dashboard-key-table td::before,
  .dashboard-log-table td::before {
    position: absolute;
    left: 0;
    top: 8px;
    width: 38%;
    font-weight: 700;
    color: var(--sub);
    content: "";
  }
  .dashboard-key-table td:nth-child(1)::before { content: "Chọn"; }
  .dashboard-key-table td:nth-child(2)::before { content: "ID"; }
  .dashboard-key-table td:nth-child(3)::before { content: "Label"; }
  .dashboard-key-table td:nth-child(4)::before { content: "API key"; }
  .dashboard-key-table td:nth-child(5)::before { content: "Chu kỳ"; }
  .dashboard-key-table td:nth-child(6)::before { content: "Cron"; }
  .dashboard-key-table td:nth-child(7)::before { content: "Trạng thái"; }
  .dashboard-key-table td:nth-child(8)::before { content: "Action"; }
  .dashboard-log-table td:nth-child(1)::before { content: "Thời gian"; }
  .dashboard-log-table td:nth-child(2)::before { content: "API key"; }
  .dashboard-log-table td:nth-child(3)::before { content: "KQ"; }
  .dashboard-log-table td:nth-child(4)::before { content: "Status"; }
  .dashboard-log-table td:nth-child(5)::before { content: "Chi tiết"; }
  .dashboard-key-table input[type="text"],
  .dashboard-key-table input[type="number"],
  .dashboard-key-table input:not([type]),
  .dashboard-key-table select {
    width: 100%;
  }
  .dashboard-key-table code,
  .dashboard-log-table code {
    white-space: normal;
    word-break: break-all;
  }
  .dashboard-key-table .cron-toggle {
    width: 118px;
  }
  .dashboard-key-table .risk-wrap {
    margin-top: 6px;
  }
  .dashboard-key-table td:nth-child(1) {
    padding-left: 42%;
  }
  .dashboard-key-table td:nth-child(1) input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
  }
  #admin-smtp-panel .row > div,
  #admin-smtp-panel .row > input,
  #admin-smtp-panel .row > select {
    min-width: 0 !important;
    width: 100%;
  }
  #btn-user-prev-page,
  #btn-user-next-page {
    flex: 1 1 0;
  }
  #user-page-info {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container {
    margin: 12px auto;
  }
  .card {
    padding: 12px;
    border-radius: 12px;
  }
  h1 {
    font-size: 30px;
  }
  h2 {
    font-size: 24px;
    margin-bottom: 10px;
  }
  .small {
    font-size: 11px;
  }
  .btn-compact {
    font-size: 12px;
    padding: 6px 8px;
  }
  .bulk-action-group {
    grid-template-columns: 1fr;
  }
  .admin-user-grid {
    grid-template-columns: 1fr;
  }
  .dashboard-key-table td,
  .dashboard-log-table td {
    padding-left: 0;
    padding-top: 24px;
  }
  .dashboard-key-table td::before,
  .dashboard-log-table td::before {
    width: 100%;
    top: 4px;
    font-size: 11px;
  }
  .dashboard-key-table td:nth-child(1) {
    padding-left: 0;
  }
  .dashboard-key-table .action-wrap button {
    flex: 1 1 100%;
  }
  .admin-user-title {
    font-size: 17px;
  }
  th,
  td {
    font-size: 12px;
    padding: 7px 6px;
  }
}