/* =====================================================================
   Yellow Grid — Boiler Dashboard
   Built on Pajamas tokens. Brand override: --color-primary = YG orange.
   Separators = whitespace only. No card shadows.
   ===================================================================== */

:root {
  /* Backgrounds */
  --color-background: #f3f4f6;
  --color-background-subtle: #f0f0f0;

  /* Text — all meet WCAG AA */
  --color-text: #1f2937;
  --color-text-secondary: #4b5563;
  --color-text-muted: #6b7280;

  /* Primary — YG brand orange (overrides Pajamas indigo) */
  --color-primary: #e4862d;
  --color-primary-hover: #c9721e;

  /* Neutral */
  --color-border: #e5e7eb;
  --color-border-strong: #d1d5db;

  /* Semantic */
  --color-success: #059669;
  --color-success-bg: #d1fae5;
  --color-warning: #f59e0b;
  --color-warning-bg: #fef3c7;
  --color-danger: #dc2626;
  --color-danger-bg: #fee2e2;
  --color-info: #0ea5e9;
  --color-info-bg: #e0f2fe;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Typography */
  --font-family: 'JetBrains Mono', 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;
  --font-family-mono: 'JetBrains Mono', 'SF Mono', Monaco, Consolas, 'Liberation Mono', monospace;

  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;
}

/* ---------- Reset / base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, p, ul, dl, dt, dd {
  margin: 0;
  padding: 0;
}

ul {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

input {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- Layout ---------- */
.page {
  min-height: 100vh;
  padding: var(--space-5);
}

.grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
  max-width: 1440px;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .grid {
    grid-template-columns: minmax(320px, 1fr) 2fr;
  }
}

/* ---------- Card ---------- */
.card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ---------- Profile card ---------- */
.profile-head {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-background-subtle);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.avatar svg {
  width: 26px;
  height: 26px;
}

.profile-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.profile-sub {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.info-list li {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.ico {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--color-text-secondary);
}

/* ---------- Stats (profile) ---------- */
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-top: var(--space-2);
  letter-spacing: -0.01em;
}

.stat-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.stat-sub--pos {
  color: var(--color-success);
}

/* ---------- Profile actions ---------- */
.profile-actions {
  display: flex;
  gap: var(--space-5);
  align-items: center;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-text);
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}

.btn:disabled {
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-secondary {
  background: #ffffff;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-background-subtle);
}

.btn--pill {
  background: var(--color-background-subtle);
  color: var(--color-text-muted);
  border-color: var(--color-background-subtle);
}

.btn--pill:disabled {
  color: var(--color-text-muted);
  background: var(--color-background-subtle);
  border-color: var(--color-background-subtle);
}

.btn-primary.btn--pill {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.btn--save {
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.btn-link {
  background: none;
  border: none;
  padding: var(--space-3) 0;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.btn-link--danger {
  color: var(--color-danger);
}

.btn-link--danger:hover {
  color: #991b1b;
}

/* ---------- Device card ---------- */
.device-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.device-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-lg);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.ico--chip {
  width: 20px;
  height: 20px;
  color: var(--color-text);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  background: var(--color-background-subtle);
  color: var(--color-text-secondary);
}

.badge--online {
  background: var(--color-success-bg);
  color: var(--color-success);
}

/* ---------- Device meta ---------- */
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  row-gap: var(--space-4);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  flex: 0 1 auto;
  min-width: 0;
}

.meta-item dt {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.meta-item dd {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  white-space: nowrap;
}

/* ---------- Device name edit ---------- */
.name-edit {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.field-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.name-edit__row {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.text-input {
  flex: 1;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-background-subtle);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  min-width: 0;
}

.text-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #ffffff;
}

/* ---------- Metrics grid ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

@media (min-width: 900px) {
  .metrics {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-4);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.metric-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.metric-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.metric-unit {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-left: var(--space-1);
}

.metric-value--accent {
  color: var(--color-primary);
}

.metric-value--accent .metric-unit {
  color: var(--color-primary);
}

/* ---------- Section header ---------- */
.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

.section-header .ico {
  color: var(--color-text);
}

/* ---------- Quick actions ---------- */
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ---------- Small-screen tuning ---------- */
@media (max-width: 640px) {
  .page {
    padding: var(--space-3);
  }

  .card {
    padding: var(--space-5);
  }

  .profile-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .profile-actions .btn,
  .profile-actions .btn-link {
    width: 100%;
  }
}