:root {
  color-scheme: light;
  --bg: #f2f4f7;
  --panel: #ffffff;
  --panel-alt: #f8fafc;
  --ink: #12202f;
  --muted: #5d6b78;
  --line: #d4dce4;
  --line-strong: #b7c2cc;
  --accent: #0d4c7f;
  --accent-soft: #eaf1f6;
  --success: #17633d;
  --warning: #8b5e00;
  --danger: #b42318;
  --sidebar: #1b232b;
  --sidebar-line: #33414d;
  --radius: 3px;
  --shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(13, 76, 127, 0.03), transparent 180px),
    var(--bg);
  color: var(--ink);
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

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

textarea {
  min-height: 112px;
  resize: vertical;
}

button {
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 10px 14px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
}

button.secondary {
  background: #fff;
  border-color: var(--line-strong);
  color: var(--ink);
}

button:disabled {
  opacity: 0.65;
  cursor: wait;
}

label {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 0.94rem;
}

.checkbox {
  grid-template-columns: 18px 1fr;
  align-items: center;
  gap: 10px;
}

.checkbox input {
  width: 16px;
  height: 16px;
  margin: 0;
}

.hidden {
  display: none;
}

.app-shell {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: var(--sidebar);
  color: #e4ebf1;
  padding: 24px 20px;
  display: grid;
  align-content: start;
  gap: 22px;
  border-right: 1px solid var(--sidebar-line);
}

.brand-block h1 {
  margin: 4px 0 8px;
  font-size: 1.45rem;
}

.brand-block p {
  margin: 0;
  color: #acb8c3;
  line-height: 1.45;
}

.brand-kicker,
.sidebar-label,
.workspace-kicker,
.panel-kicker,
.metric-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
}

.brand-kicker,
.workspace-kicker,
.panel-kicker,
.metric-label {
  color: var(--muted);
}

.sidebar-label {
  color: #90a0ac;
  margin-bottom: 6px;
}

.sidebar-value,
.sidebar-subvalue {
  word-break: break-word;
}

.sidebar-value {
  margin-bottom: 10px;
}

.sidebar-subvalue {
  color: #b7c2cc;
  margin-bottom: 14px;
}

.nav-block {
  display: grid;
  gap: 6px;
}

.nav-item {
  display: block;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: #dce4ea;
}

.nav-item.active,
.nav-item:hover {
  background: #24303a;
  border-color: #33414d;
}

.sidebar-section {
  border-top: 1px solid var(--sidebar-line);
  padding-top: 16px;
}

.sidebar-button {
  width: 100%;
  margin-top: 6px;
}

.workspace {
  padding: 28px 32px 36px;
}

.workspace-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 20px;
}

.workspace-header h2 {
  margin: 4px 0 8px;
  font-size: 2rem;
}

.workspace-header p {
  margin: 0;
  color: var(--muted);
  max-width: 760px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

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

.metric-card {
  padding: 14px 16px;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.5rem;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(360px, 0.95fr);
  gap: 18px;
  align-items: start;
}

.main-column,
.side-column {
  display: grid;
  gap: 18px;
}

.panel {
  padding: 18px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-head h3,
.section-title {
  margin: 4px 0 0;
  font-size: 1.12rem;
}

.notice {
  margin-bottom: 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  line-height: 1.45;
}

.notice.success {
  background: #eef9f2;
  border-color: #cfe7d7;
  color: var(--success);
}

.notice.warning {
  background: #fff7e8;
  border-color: #f0d8a7;
  color: var(--warning);
}

.notice.error {
  background: #fef1f0;
  border-color: #f5c9c3;
  color: var(--danger);
}

.pill,
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-alt);
  font-size: 0.84rem;
}

.status-badge.success {
  color: var(--success);
  border-color: #cfe7d7;
  background: #eef9f2;
}

.status-badge.pending {
  color: var(--warning);
  border-color: #f0d8a7;
  background: #fff7e8;
}

.status-badge.danger {
  color: var(--danger);
  border-color: #f5c9c3;
  background: #fef1f0;
}

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

.zone-card {
  display: block;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.zone-card.active {
  border-color: #9ab9d0;
  background: #f8fbfd;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

.muted {
  color: var(--muted);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.data-table thead th {
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.data-table.compact th,
.data-table.compact td {
  padding: 8px 6px;
}

.data-table pre {
  margin: 8px 0 0;
  padding: 10px;
  overflow: auto;
  background: #f7f9fb;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

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

.mfa-panel {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.diagnostics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.diagnostic-block {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-alt);
  padding: 14px;
}

.diagnostic-block h4 {
  margin: 0 0 10px;
}

.diagnostic-block ul,
.plain-list {
  margin: 0;
  padding-left: 18px;
}

.app-footer {
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
}

.login-shell {
  width: min(980px, calc(100vw - 32px));
  margin: 40px auto;
  display: grid;
  gap: 18px;
}

.hero {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #12324d 0%, #1d4f75 100%);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.hero p,
.user-meta {
  color: rgba(255, 255, 255, 0.86);
}

.login-panel {
  max-width: 520px;
}

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

  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--sidebar-line);
  }

  .workspace {
    padding: 20px;
  }
}

@media (max-width: 640px) {
  .stats-grid,
  .two-col,
  .diagnostics-grid {
    grid-template-columns: 1fr;
  }

  .workspace-header,
  .hero,
  .app-footer {
    flex-direction: column;
  }
}