:root {
  --page-bg: #070b14;
  --header-bg: #050912;
  --sidebar-bg: #0b111d;
  --panel-bg: #111929;
  --panel-dark: #0c1320;
  --panel-hover: #162136;

  --border: #263249;
  --border-light: #35435d;

  --text: #f4f7fc;
  --muted: #9ca9bf;
  --cyan: #45c8ff;
  --cyan-dark: #159fdc;
  --purple: #8274ff;
  --green: #43e49a;
  --gold: #ffc447;
  --red: #ff6776;

  --radius-large: 18px;
  --radius-medium: 12px;
  --radius-small: 9px;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(
      circle at top right,
      rgba(76, 60, 150, 0.15),
      transparent 34rem
    ),
    var(--page-bg);
  color: var(--text);
  font-family:
    Inter,
    Arial,
    Helvetica,
    sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

[hidden] {
  display: none !important;
}

.admin-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 12px clamp(18px, 4vw, 58px);
  border-bottom: 1px solid #1d2739;
  background: rgba(5, 9, 18, 0.97);
}

.admin-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.admin-brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(69, 200, 255, 0.45);
  border-radius: 13px;
  background: linear-gradient(
    145deg,
    #102740,
    #20223b
  );
  color: var(--cyan);
  font-weight: 900;
}

.admin-brand-copy {
  display: grid;
  gap: 3px;
}

.admin-brand-copy strong {
  font-size: 1.06rem;
}

.admin-brand-copy small {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.admin-header-navigation {
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-header-navigation a,
.admin-header-navigation button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  color: #d5ddec;
}

.admin-header-navigation a:hover,
.admin-header-navigation button:hover {
  border-color: var(--cyan);
  color: white;
}

.admin-header-navigation button {
  border-color: rgba(255, 103, 118, 0.35);
  color: #ff9aa5;
}

.admin-access-status {
  width: min(1480px, calc(100% - 30px));
  margin: 18px auto 0;
  padding: 13px 16px;
  border: 1px solid rgba(69, 200, 255, 0.25);
  border-radius: 10px;
  background: rgba(69, 200, 255, 0.06);
  color: #b5def0;
  font-size: 0.86rem;
}

.admin-layout {
  width: min(1480px, calc(100% - 30px));
  margin: 18px auto 34px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.admin-search-field {
  width: min(360px, 100%);
}

.admin-search-field span,
.admin-toolbar label > span,
.admin-dashboard-panel label > span {
  display: block;
  margin-bottom: 7px;
  color: #cbd4e3;
  font-size: 0.74rem;
  font-weight: 750;
}

input,
select {
  min-height: 44px;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-small);
  outline: none;
  background: var(--panel-dark);
  color: white;
}

input {
  width: 100%;
  padding: 9px 12px;
}

select {
  padding: 8px 34px 8px 11px;
}

input:focus,
select:focus {
  border-color: var(--cyan);
  box-shadow:
    0 0 0 3px rgba(69, 200, 255, 0.12);
}

.admin-subnavigation {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  padding-bottom: 6px;
  overflow-x: auto;
}

.admin-tab-button {
  min-height: 40px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel-dark);
  color: #aeb9ca;
  font-size: 0.78rem;
  font-weight: 750;
}

.admin-tab-button span {
  min-width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  padding: 0 6px;
  border-radius: 20px;
  background: #202b3f;
  color: #dce4f1;
  font-size: 0.65rem;
}

.admin-tab-button:hover {
  border-color: var(--border-light);
  color: white;
}

.admin-tab-button.is-active {
  border-color: rgba(69, 200, 255, 0.42);
  background: rgba(69, 200, 255, 0.1);
  color: var(--cyan);
}

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-medium);
  background: var(--panel-dark);
}

.admin-toolbar label {
  min-width: 145px;
  flex: 1 1 145px;
}

.admin-toolbar select {
  width: 100%;
}

.admin-table-wrapper {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-medium);
}

.admin-table {
  width: 100%;
  min-width: 1040px;
  border-collapse: collapse;
  background: var(--panel-dark);
}

.admin-table th,
.admin-table td {
  padding: 14px 15px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.admin-table th {
  background: #131e30;
  color: #cad4e3;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.admin-table td {
  color: #aeb9ca;
  font-size: 0.8rem;
}

.admin-table tbody tr:last-child td {
  border-bottom: 0;
}

.admin-table tbody tr:hover {
  background: var(--panel-hover);
}

.match-submission-list,
#membershipManagementPanel,
#divisionManagementPanel,
#tournamentManagementPanel {
  min-height: 180px;
  padding: 22px;
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-medium);
  background: var(--panel-dark);
  color: var(--muted);
}

.community-management-grid,
.settings-management-grid {
  display: grid;
  grid-template-columns:
    repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.community-management-grid
.admin-dashboard-panel,
.settings-management-grid
.admin-dashboard-panel {
  margin-top: 0;
}

.admin-dashboard-panel label {
  display: block;
  margin-top: 18px;
}

.admin-dashboard-panel input[type="checkbox"] {
  width: 18px;
  min-height: 18px;
  margin: 0 8px 0 0;
  vertical-align: middle;
}

.admin-dashboard-panel select {
  width: 100%;
}

.admin-dashboard-panel button {
  margin-top: 14px;
}

.admin-footer {
  padding: 22px;
  border-top: 1px solid #1d2739;
  color: var(--muted);
  text-align: center;
  font-size: 0.75rem;
}

@media (max-width: 1100px) {
  .admin-summary-grid {
    grid-template-columns:
      repeat(2, minmax(0, 1fr));
  }

  .community-management-grid,
  .settings-management-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
    min-height: auto;
  }

  .admin-navigation {
    grid-template-columns:
      repeat(4, minmax(120px, 1fr));
    overflow-x: auto;
  }

  .admin-navigation-button {
    min-width: 135px;
  }
}

@media (max-width: 640px) {
  .admin-header {
    align-items: flex-start;
    padding: 12px 14px;
  }

  .admin-brand-copy small {
    display: none;
  }

  .admin-header-navigation {
    gap: 6px;
  }

  .admin-header-navigation a {
    display: none;
  }

  .admin-header-navigation button {
    padding: 0 12px;
    font-size: 0.78rem;
  }

  .admin-access-status,
  .admin-layout {
    width: calc(100% - 18px);
  }

  .admin-section {
    padding: 18px 14px;
    border-radius: 14px;
  }

  .admin-section-header {
    flex-direction: column;
  }

  .admin-section-header > button,
  .admin-search-field {
    width: 100%;
  }

  .admin-summary-grid {
    grid-template-columns: 1fr;
  }

  .admin-summary-card {
    min-height: 125px;
  }

  .admin-navigation {
    grid-template-columns:
      repeat(8, minmax(130px, 1fr));
  }
}