:root {
  --font-family-base: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --color-body-bg: #f6f8fb;
  --color-surface: #ffffff;
  --color-surface-muted: #eef2f7;
  --color-surface-glass: rgba(255, 255, 255, 0.78);
  --color-border: #dbe3ef;
  --color-border-strong: #c7d2e6;
  --color-text: #0f172a;
  --color-text-muted: #334155;
  --color-text-soft: #64748b;
  --color-primary: #2563eb;
  --color-primary-emphasis: #1d4ed8;
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-info: #0284c7;
  --color-neutral-strong: #0f172a;
  --gradient-hero-teal: linear-gradient(
    135deg,
    #dbeafe 0%,
    #ccfbf1 45%,
    #e0e7ff 100%
  );
  --gradient-hero-indigo: radial-gradient(
    circle at top left,
    #c7d2fe,
    #f6f8fb 65%
  );
  --shadow-sm: 0 10px 24px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 22px 44px rgba(15, 23, 42, 0.16);
  --radius-lg: 1.25rem;
  --radius-xl: 2rem;
  --radius-pill: 999px;
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2.5rem;
}

/* Light theme is now the default - dark mode media query removed */

html,
body {
  font-family: var(--font-family-base);
  background: var(--color-body-bg);
  color: var(--color-text);
  min-height: 100%;
  scroll-behavior: smooth;
}

a,
.btn-link {
  color: var(--color-primary);
}

/* Bootstrap utility overrides (align with theme tokens) */

.text-muted {
  color: var(--color-text-muted) !important;
}

.text-secondary,
.text-body-secondary {
  color: var(--color-text-soft) !important;
}

/* Remove underline from sidebar navigation links */
.sidebar-shell a,
.sidebar-shell a:link,
.sidebar-shell a:visited,
.sidebar-shell a:hover,
.sidebar-shell a:active,
.sidebar-shell a:focus {
  text-decoration: none !important;
}

.btn-primary {
  color: #fff;
  background-color: var(--color-primary);
  border-color: var(--color-primary-emphasis);
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem rgba(37, 140, 251, 0.35);
}

.content {
  padding-top: 1.1rem;
}

h1:focus {
  outline: none;
}

.valid.modified:not([type="checkbox"]) {
  outline: 1px solid #26b050;
}

.invalid {
  outline: 1px solid #e50000;
}

.validation-message {
  color: #e50000;
}

.blazor-error-boundary {
  background: url(data:image/svg+xml;base64,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)
      no-repeat 1rem/1.8rem,
    #b32121;
  padding: 1rem 1rem 1rem 3.7rem;
  color: white;
}

.blazor-error-boundary::after {
  content: "An error has occurred.";
}

.darker-border-checkbox.form-check-input {
  border-color: #929292;
}

.transparent-card {
  background-color: transparent;
  border: none;
}

.transparent-select {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: inherit;
  font-weight: 600;
}

.transparent-card-body {
  background-color: transparent;
  border: none;
}

.transparent-input {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: inherit;
  font-weight: 600;
}

.transparent-list-item {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: inherit;
}

.small-centered-select {
  width: 50%;
  max-width: 300px;
  margin: 0 auto;
  display: block;
}

.text-large {
  font-size: 32px;
}

.gradient-header {
  background: linear-gradient(45deg, #0a0a0a, #99f2c8);
}

.custom-direction-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
}

.rotate-icon {
  font-size: 24px;
  color: red;
  transform-origin: center center;
  transition: transform 0.2s ease;
}

/* Shared UI primitives */

.gradient-card {
  background: var(--gradient-card-background, var(--gradient-hero-teal));
  border: none;
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-xl);
}

.gradient-card::after {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(15, 23, 42, 0.14);
  border-radius: inherit;
  pointer-events: none;
}

.glass-card {
  background: var(--color-surface-glass);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(15, 23, 42, 0.12);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.panel-card,
.surface-card {
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.control-input {
  border-radius: 0.85rem;
  border: 1px solid var(--color-border-strong);
  padding: 0.65rem 0.85rem;
  background: var(--color-surface-muted);
  color: var(--color-text);
  caret-color: var(--color-primary);
}

.control-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

.control-input::placeholder {
  color: var(--color-text-soft);
}

select.control-input {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: linear-gradient(
      45deg,
      transparent 50%,
      var(--color-text-muted) 50%
    ),
    linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position: calc(100% - 1.2rem) calc(50% + 0.35rem),
    calc(100% - 0.85rem) calc(50% + 0.35rem);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
}

select.control-input::-ms-expand {
  display: none;
}

select.control-input option {
  background-color: var(--color-surface);
  color: var(--color-text);
}

select.control-input option:disabled {
  color: var(--color-text-soft);
}

select.control-input option:checked,
select.control-input option:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.hero-glance,
.stat-grid,
.sensor-grid,
.custom-range-grid {
  display: grid;
  gap: 1rem;
}

.hero-glance {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.glance-item,
.summary-chip,
.stat-card,
.stat-chip {
  background: var(--color-surface-glass, rgba(255, 255, 255, 0.8));
  border-radius: var(--radius-lg);
  padding: 0.85rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.glance-label,
.panel-eyebrow,
.chip-label,
.metric-label,
.stat-label,
.controls-eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--color-text-soft);
}

.glance-value,
.stat-value,
.chip-value,
.metric-value {
  font-weight: 600;
  color: var(--color-text);
}

.status-pill {
  border-radius: var(--radius-pill);
  padding: 0.25rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.status-pill.success {
  color: var(--color-success);
  background: rgba(15, 157, 88, 0.12);
}

.status-pill.warning {
  color: var(--color-warning);
  background: rgba(249, 115, 22, 0.15);
}

.status-pill.info {
  color: var(--color-info);
  background: rgba(14, 165, 233, 0.15);
}

.legend-dot,
.device-dot,
.guidance-dot {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: var(--radius-pill);
  display: inline-block;
}

.device-dot.online,
.legend-dot.online {
  background: var(--color-success);
  box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.25);
}

.device-dot.offline,
.legend-dot.offline {
  background: #94a3b8;
  box-shadow: 0 0 0 6px rgba(148, 163, 184, 0.3);
}

.chip,
.badge-neutral {
  border-radius: var(--radius-pill);
  padding: 0.2rem 0.75rem;
  font-size: 0.8rem;
  border: 1px solid var(--color-border);
}

.placeholder-panel,
.table-placeholder,
.chart-placeholder {
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  background: var(--color-surface-muted);
}

.skeleton-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(
    90deg,
    rgba(148, 163, 184, 0.15) 0%,
    rgba(148, 163, 184, 0.05) 50%,
    rgba(148, 163, 184, 0.15) 100%
  );
  min-height: 120px;
  animation: pulse 1.6s ease-in-out infinite;
}

.skeleton-stack {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

@keyframes pulse {
  0% {
    background-position: -150px 0;
  }
  100% {
    background-position: calc(150px + 100%) 0;
  }
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  z-index: 999;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.app-shell {
  min-height: 100vh;
  background: var(--color-body-bg);
}