:root {
  --brand: #245f9e;
  --brand-dark: #184772;
  --ink: #172334;
  --muted: #65758b;
  --line: #e5eaf0;
  --surface: #fff;
  --canvas: #f4f7fa;
  --success: #1e8b5b;
  --danger: #b42332;
}

html { font-size: 15px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
a { color: var(--brand); }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
}
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  color: #dce8f5;
  background: linear-gradient(165deg, #173e68, #102b49);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.brand:hover { color: inherit; }
.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: white;
  font-weight: 800;
  background: linear-gradient(145deg, #3b8bd1, #1f5d98);
  box-shadow: 0 8px 22px #061b2f66;
  overflow: hidden;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.brand strong,
.brand small { display: block; }
.brand strong { font-size: 1.05rem; }
.brand small {
  font-size: .76rem;
  color: #aac4de;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.side-nav {
  margin-top: 42px;
  display: grid;
  gap: 6px;
}
.side-nav a,
.side-nav span {
  padding: 11px 13px;
  border-radius: 9px;
  color: #dce8f5;
  text-decoration: none;
}
.side-nav a:hover { background: #ffffff15; }
.side-nav span {
  color: #829cb7;
  cursor: not-allowed;
}

.logout {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid #ffffff18;
  display: grid;
  gap: 8px;
}
.logout span {
  font-size: .86rem;
  overflow: hidden;
  text-overflow: ellipsis;
}
.logout button {
  padding: 8px 10px;
  border: 1px solid #ffffff28;
  border-radius: 8px;
  color: white;
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.logout button:hover { background: #ffffff12; }

.content {
  min-width: 0;
  padding: 38px clamp(24px, 4vw, 64px);
}
.anonymous-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 10%, #dcecff, transparent 36%),
    var(--canvas);
}

.page-header {
  margin-bottom: 24px;
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 20px;
}
.page-header h1 {
  margin: 3px 0 0;
  font-size: clamp(1.55rem, 2.4vw, 2rem);
  font-weight: 750;
}
.eyebrow {
  color: var(--brand);
  font-size: .75rem;
  font-weight: 750;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.status-pill {
  padding: 7px 11px;
  border: 1px solid #cbe9dc;
  border-radius: 999px;
  background: #ecfaf4;
  color: #176d49;
  font-size: .82rem;
  white-space: nowrap;
}
.status-pill i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 6px;
  border-radius: 50%;
  background: #23a36a;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.metrics article,
.panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 8px 28px #24384d0a;
}
.metrics article { padding: 21px; }
.metrics span {
  display: block;
  color: var(--muted);
  font-size: .84rem;
}
.metrics strong {
  display: block;
  margin-top: 9px;
  font-size: 1.85rem;
}

.panel { padding: 26px; }
.welcome-panel { background: linear-gradient(120deg, #fff 55%, #edf5fd); }
.welcome-panel h2 { margin: 8px 0; }
.welcome-panel p {
  max-width: 680px;
  color: var(--muted);
}

.btn {
  display: inline-block;
  border: 1px solid transparent;
  border-radius: 9px;
  font-weight: 650;
  padding: .62rem 1rem;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
  line-height: 1.2;
}
.btn-primary {
  color: white;
  border-color: var(--brand);
  background: var(--brand);
}
.btn-primary:hover {
  color: white;
  border-color: var(--brand-dark);
  background: var(--brand-dark);
}
.btn-light {
  color: var(--ink);
  border-color: var(--line);
  background: #f7f9fb;
}
.btn-danger {
  color: white;
  background: var(--danger);
  border-color: var(--danger);
}
.w-100 { width: 100%; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

.login-card {
  width: min(440px, 100%);
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
  box-shadow: 0 24px 70px #19355020;
}
.login-brand { margin-bottom: 34px; color: var(--ink); }
.login-copy h1 { margin: 5px 0; }
.login-copy p,
.login-note { color: var(--muted); }
.login-note {
  margin: 25px 0 0;
  text-align: center;
  font-size: .82rem;
}
.login-form,
.stack-form {
  display: grid;
  gap: 18px;
}
.login-field,
.form-field {
  display: grid;
  min-width: 0;
  gap: 7px;
}
.login-form .validation-summary:empty,
.login-form .field-validation:empty,
.stack-form .validation-summary:empty,
.stack-form .field-validation:empty,
.form-grid .field-validation:empty {
  display: none;
}

.form-control {
  display: block;
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: .65rem .8rem;
  border: 1px solid #d6dde6;
  border-radius: 9px;
  background: white;
  color: var(--ink);
  font: inherit;
}
.form-control:focus {
  outline: 0;
  border-color: #6ea4d8;
  box-shadow: 0 0 0 .2rem #2f75b522;
}
.form-label {
  display: block;
  font-weight: 650;
}
.field-validation,
.validation-summary,
.text-danger {
  color: var(--danger);
  font-size: .84rem;
}
.validation-summary ul { padding-left: 20px; }

.table-panel {
  padding: 0;
  overflow: hidden;
}
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.table {
  width: 100%;
  margin: 0;
  border-collapse: collapse;
}
.table th {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: .76rem;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.table td {
  padding: 17px 18px;
  border-bottom: 1px solid #eef1f5;
  vertical-align: middle;
}
.actions { white-space: nowrap; }
.actions > a,
.actions button {
  border: 0;
  background: none;
  color: var(--brand);
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  font: inherit;
  padding: 0 6px 0 0;
}
.actions form { display: inline; }
.permission-count {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #eaf3fc;
  color: var(--brand);
  font-weight: 750;
}
.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-state h2 { margin: 0 0 8px; }
.empty-state p { color: var(--muted); margin: 0; }

.badge {
  display: inline-block;
  padding: 5px 8px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
}
.text-bg-danger { color: #8d1d2a; background: #fdecef; }
.text-bg-secondary { color: #566476; background: #eef1f5; }
.text-bg-success { color: #176d49; background: #e9f8f1; }
.text-bg-warning { color: #7a4b00; background: #fff4dc; }
.filter-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 1rem; }
.metrics strong a { color: inherit; text-decoration: none; }
.d-block { display: block; }
.text-secondary { color: var(--muted); }

.alert {
  margin-bottom: 18px;
  padding: 12px 15px;
  border-radius: 9px;
}
.alert-success {
  color: #176d49;
  border: 1px solid #cbe9dc;
  background: #ecfaf4;
}
.alert-danger {
  color: #8d1d2a;
  border: 1px solid #f3c4cb;
  background: #fdecef;
}
.alert-info {
  color: #184772;
  border: 1px solid #c9ddf2;
  background: #eef5fc;
}

.remote-id {
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.detail-grid div { min-width: 0; }
.detail-grid span,
.detail-grid strong { display: block; }
.detail-grid span {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: .8rem;
}
.detail-grid strong { overflow-wrap: anywhere; }

.form-panel { max-width: 850px; }
.form-panel.compact { max-width: 580px; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-grid .full,
.form-grid .form-field.full { grid-column: 1 / -1; }
.form-grid small,
.form-field small {
  display: block;
  color: var(--muted);
}
.permissions {
  margin-top: 28px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.permissions legend {
  float: none;
  width: auto;
  padding: 0 6px;
  font-size: .95rem;
  font-weight: 700;
}
.permissions label,
.toggles label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 10px 0;
}
.permissions input,
.toggles input {
  width: 17px;
  height: 17px;
  accent-color: var(--brand);
  flex: 0 0 auto;
}
.toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin-top: 22px;
}
.form-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.notice-card {
  width: min(520px, 100%);
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
  box-shadow: 0 24px 70px #19355020;
}
.notice-card h1 { margin: 8px 0 12px; }
.notice-card p { color: var(--muted); }
.notice-card .btn { margin-top: 8px; }

code {
  font-family: Consolas, "Courier New", monospace;
  font-size: .92em;
}

@media (max-width: 1024px) {
  .content { padding: 28px 20px; }
  .metrics { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
}

@media (max-width: 800px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    height: auto;
  }
  .side-nav {
    margin-top: 20px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .logout { margin-top: 20px; }
  .content { padding: 24px 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full,
  .form-grid .form-field.full { grid-column: auto; }
  .page-header {
    align-items: flex-start;
    flex-direction: column;
  }
  .metrics { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .metrics,
  .detail-grid { grid-template-columns: 1fr; }
  .panel,
  .login-card,
  .notice-card { padding: 22px; }
  .toggles { display: grid; gap: 8px; }
  .side-nav { grid-template-columns: 1fr; }
  .form-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }
  .form-actions .btn { text-align: center; }
  .table th,
  .table td { padding: 12px 14px; }
}

@media (max-width: 360px) {
  html { font-size: 14px; }
  .anonymous-shell,
  .content { padding: 16px 12px; }
  .brand-mark { width: 36px; height: 36px; }
}