:root {
  --ga-bg: #f3f4f6;
  --ga-bg-muted: #eceff3;
  --ga-bg-elevated: #ffffff;
  --ga-bg-raised: #f8f9fb;
  --ga-surface-glass: rgba(255, 255, 255, 0.78);
  --ga-text: #1a1d21;
  --ga-heading: #101317;
  --ga-text-muted: #66707c;
  --ga-border: rgba(15, 23, 42, 0.08);
  --ga-border-strong: rgba(15, 23, 42, 0.14);
  --ga-header-bg: #0a4a6f;
  --ga-header-text: rgba(255, 255, 255, 0.76);
  --ga-header-text-strong: #f5f7fa;
  --ga-accent: #2f6f9d;
  --ga-accent-rgb: 47, 111, 157;
  --ga-accent-strong: #25597d;
  --ga-accent-soft: rgba(47, 111, 157, 0.1);
  --ga-accent-line: rgba(47, 111, 157, 0.18);
  --ga-success-rgb: 34, 197, 94;
  --ga-warning-rgb: 217, 119, 6;
  --ga-danger-rgb: 220, 53, 69;
  --ga-info-rgb: 59, 130, 246;
  --ga-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05), 0 10px 24px rgba(15, 23, 42, 0.04);
  --ga-shadow-sm: 0 18px 48px rgba(15, 23, 42, 0.07);
  --ga-shadow-md: 0 28px 72px rgba(15, 23, 42, 0.1);
  --ga-radius-sm: 0.85rem;
  --ga-radius-md: 1.2rem;
  --ga-radius-lg: 1.6rem;
  --ga-radius-pill: 999px;
  --ga-radius-button: 0.5rem;
  --ga-duration-fast: 180ms;
  --ga-duration-base: 240ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ga-bg: #15171b;
    --ga-bg-muted: #1c2128;
    --ga-bg-elevated: #1f232b;
    --ga-bg-raised: #252b35;
    --ga-surface-glass: rgba(21, 23, 27, 0.82);
    --ga-text: #e8edf3;
    --ga-heading: #f5f7fa;
    --ga-text-muted: #a6afbb;
    --ga-border: rgba(255, 255, 255, 0.08);
    --ga-border-strong: rgba(255, 255, 255, 0.14);
    --ga-header-bg: #083854;
    --ga-header-text: rgba(255, 255, 255, 0.74);
    --ga-header-text-strong: #f5f7fa;
    --ga-accent: #6cb2e6;
    --ga-accent-rgb: 108, 178, 230;
    --ga-accent-strong: #93c8ee;
    --ga-accent-soft: rgba(108, 178, 230, 0.14);
    --ga-accent-line: rgba(108, 178, 230, 0.26);
    --ga-success-rgb: 74, 222, 128;
    --ga-warning-rgb: 245, 158, 11;
    --ga-danger-rgb: 248, 113, 113;
    --ga-info-rgb: 96, 165, 250;
    --ga-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.18), 0 10px 24px rgba(0, 0, 0, 0.12);
    --ga-shadow-sm: 0 18px 48px rgba(0, 0, 0, 0.22);
    --ga-shadow-md: 0 28px 72px rgba(0, 0, 0, 0.3);
  }
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: museo-sans, "Avenir Next", Avenir, "Segoe UI", sans-serif;
  color: var(--ga-text);
  background:
    radial-gradient(circle at top left, rgba(var(--ga-accent-rgb), 0.08), transparent 28%),
    linear-gradient(180deg, var(--ga-bg-muted) 0%, var(--ga-bg) 40%, var(--ga-bg) 100%);
}

a {
  color: inherit;
}

strong {
  color: var(--ga-heading);
}

*::selection {
  background: rgba(var(--ga-accent-rgb), 0.18);
}

.page-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--ga-header-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 28px rgba(5, 22, 35, 0.16);
}

.topbar-inner {
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: auto;
  height: 2rem;
}

.topbar-context {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ga-header-text);
  font-size: 0.88rem;
  font-weight: 600;
}

.topbar-label,
.topbar-site {
  white-space: nowrap;
}

.topbar-site {
  color: var(--ga-header-text-strong);
}

.topbar-divider {
  width: 1px;
  height: 1rem;
  background: rgba(255, 255, 255, 0.2);
}

.layout {
  position: relative;
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.layout-wash {
  position: absolute;
  inset: 1.25rem 1.5rem auto;
  height: 14rem;
  border-radius: var(--ga-radius-lg);
  background:
    linear-gradient(135deg, rgba(var(--ga-accent-rgb), 0.12), transparent 60%),
    linear-gradient(180deg, var(--ga-surface-glass), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.panel {
  position: relative;
  z-index: 1;
  width: min(100%, 980px);
  margin: 0 auto;
  background: var(--ga-bg-elevated);
  border: 1px solid var(--ga-border);
  border-radius: var(--ga-radius-md);
  box-shadow: var(--ga-shadow-sm);
}

.panel-auth {
  max-width: 520px;
  margin-top: 3.5rem;
  padding: 2rem;
}

.panel-dashboard {
  padding: 1.5rem;
}

.brand-kicker,
.action-meta {
  color: var(--ga-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
  font-weight: 600;
}

h1,
h2 {
  margin: 0;
  color: var(--ga-heading);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 2.4vw, 2.9rem);
  line-height: 1.02;
  margin-top: 0.55rem;
}

h2 {
  font-size: clamp(1.45rem, 1.9vw, 2rem);
  line-height: 1.1;
  margin-top: 0.45rem;
}

.panel-copy,
.action-card p,
.site-detail,
.site-time,
.monitor-note {
  color: var(--ga-text-muted);
  line-height: 1.6;
}

.auth-form,
.action-form {
  margin-top: 1.25rem;
}

label {
  display: block;
  margin-bottom: 0.55rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ga-heading);
}

input[type="password"] {
  width: 100%;
  min-height: 2.9rem;
  border: 1px solid var(--ga-border-strong);
  background: var(--ga-bg-elevated);
  color: var(--ga-text);
  border-radius: var(--ga-radius-button);
  padding: 0.8rem 0.9rem;
  font: inherit;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

input[type="password"]:focus {
  outline: none;
  border-color: var(--ga-accent-line);
  box-shadow: 0 0 0 0.25rem rgba(var(--ga-accent-rgb), 0.16);
}

.button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--ga-radius-button);
  padding: 0.8rem 1rem;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.15;
  cursor: pointer;
  transition:
    transform var(--ga-duration-fast) ease,
    box-shadow var(--ga-duration-fast) ease,
    background var(--ga-duration-fast) ease,
    border-color var(--ga-duration-fast) ease,
    color var(--ga-duration-fast) ease,
    opacity var(--ga-duration-fast) ease;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: var(--ga-shadow-xs);
}

.button-primary {
  color: #ffffff;
  background: var(--ga-accent);
  border-color: var(--ga-accent);
}

.button-primary:hover {
  background: var(--ga-accent-strong);
  border-color: var(--ga-accent-strong);
}

.button-danger {
  color: rgb(var(--ga-danger-rgb));
  background: rgba(var(--ga-danger-rgb), 0.08);
  border-color: rgba(var(--ga-danger-rgb), 0.22);
}

.button-danger:hover {
  background: rgba(var(--ga-danger-rgb), 0.12);
  border-color: rgba(var(--ga-danger-rgb), 0.32);
}

.button-secondary {
  color: var(--ga-text);
  background: var(--ga-bg-elevated);
  border-color: var(--ga-border-strong);
}

.button-secondary:hover {
  color: var(--ga-heading);
  background: var(--ga-bg-raised);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
  transform: none;
  box-shadow: none;
}

.dashboard-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--ga-border);
}

.status-panel {
  margin-top: 1.25rem;
  padding: 1rem;
  border-radius: var(--ga-radius-sm);
  background: var(--ga-bg-raised);
  border: 1px solid var(--ga-border);
}

.status-panel-header,
.site-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-grid,
.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
}

.site-grid {
  margin-top: 0.9rem;
}

.action-grid {
  margin-top: 1rem;
}

.site-card,
.action-card {
  padding: 1rem;
  border-radius: var(--ga-radius-sm);
  background: var(--ga-bg-elevated);
  border: 1px solid var(--ga-border);
}

.action-card {
  box-shadow: var(--ga-shadow-xs);
}

.site-card {
  position: relative;
  overflow: hidden;
}

.site-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--ga-border);
}

.site-card.site-online::before {
  background: rgba(var(--ga-success-rgb), 0.8);
}

.site-card.site-offline::before {
  background: rgba(var(--ga-warning-rgb), 0.8);
}

.site-card strong {
  font-size: 0.98rem;
  color: var(--ga-heading);
}

.site-time,
.monitor-note {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.status-pill,
.site-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--ga-radius-pill);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.status-online {
  color: rgb(var(--ga-success-rgb));
  background: rgba(var(--ga-success-rgb), 0.08);
  border-color: rgba(var(--ga-success-rgb), 0.18);
}

.status-offline {
  color: rgb(var(--ga-warning-rgb));
  background: rgba(var(--ga-warning-rgb), 0.08);
  border-color: rgba(var(--ga-warning-rgb), 0.18);
}

.status-partial {
  color: rgb(var(--ga-info-rgb));
  background: rgba(var(--ga-info-rgb), 0.08);
  border-color: rgba(var(--ga-info-rgb), 0.18);
}

.status-unknown {
  color: var(--ga-text-muted);
  background: var(--ga-bg-elevated);
  border-color: var(--ga-border);
}

.flash-stack {
  display: grid;
  gap: 0.7rem;
  margin-top: 1rem;
}

.flash {
  padding: 0.9rem 1rem;
  border-radius: var(--ga-radius-sm);
  border: 1px solid var(--ga-border);
  border-left-width: 4px;
  background: var(--ga-bg-raised);
  font-weight: 600;
  color: var(--ga-text);
}

.flash-success {
  border-left-color: rgba(var(--ga-success-rgb), 0.9);
  background: rgba(var(--ga-success-rgb), 0.08);
}

.flash-error {
  border-left-color: rgba(var(--ga-danger-rgb), 0.9);
  background: rgba(var(--ga-danger-rgb), 0.08);
}

.flash-info {
  border-left-color: rgba(var(--ga-info-rgb), 0.9);
  background: rgba(var(--ga-info-rgb), 0.08);
}

.confirm-dialog {
  width: min(92vw, 480px);
  border: 1px solid var(--ga-border);
  border-radius: var(--ga-radius-md);
  padding: 0;
  background: var(--ga-bg-elevated);
  color: var(--ga-text);
  box-shadow: var(--ga-shadow-md);
}

.confirm-dialog::backdrop {
  background: rgba(16, 19, 23, 0.34);
  backdrop-filter: blur(3px);
}

.confirm-dialog-shell {
  padding: 1.4rem;
}

.confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

@media (max-width: 720px) {
  .topbar-inner,
  .layout {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .topbar-inner,
  .topbar-context,
  .dashboard-header,
  .status-panel-header,
  .site-card-top {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-divider {
    display: none;
  }

  .layout {
    padding-top: 1rem;
  }

  .layout-wash {
    inset: 0.75rem 1rem auto;
  }

  .panel-auth,
  .panel-dashboard {
    padding: 1.1rem;
  }

  .button,
  input[type="password"] {
    width: 100%;
  }

  .confirm-actions {
    flex-direction: column-reverse;
  }
}