/* Header / nav */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.site-header__brand {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-text);
}

.site-nav {
  display: flex;
  gap: var(--space-4);
  flex: 1;
}

.site-nav__link {
  color: var(--color-text-muted);
  font-weight: 500;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

.site-nav__link:hover {
  color: var(--color-text);
  text-decoration: none;
  background: var(--color-surface-alt);
}

.site-nav__link.is-active {
  color: var(--color-primary);
  background: var(--color-info-bg);
}

.site-header__logout button {
  margin: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: var(--color-surface-alt);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 500;
  transition: background 120ms ease, border-color 120ms ease;
}

.btn:hover {
  background: var(--color-border);
}

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

.btn--primary:hover {
  background: var(--color-primary-hover);
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-surface-alt);
}

.btn--danger {
  background: var(--color-danger);
  color: #fff;
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

/* Forms */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.form-field label {
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(29, 79, 215, 0.15);
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.table th,
.table td {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table th {
  background: var(--color-surface-alt);
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Flash messages */
.flash {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
  border: 1px solid transparent;
}

.flash--success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border-color: var(--color-success);
}

.flash--error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-color: var(--color-danger);
}

.flash--info {
  background: var(--color-info-bg);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

.badge--warn {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge--down {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

/* Error pages */
.error-page {
  text-align: center;
  padding: var(--space-7) var(--space-4);
}

.error-page__status {
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1;
}

.error-page__title {
  margin-top: var(--space-3);
}

.error-page__message {
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

/* Placeholder home */
.placeholder {
  text-align: center;
  padding: var(--space-7) var(--space-4);
}

.placeholder__title {
  margin-bottom: var(--space-3);
}

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

/* Auth pages */
.auth-shell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 4rem);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.auth-card__title {
  margin-bottom: var(--space-2);
}

.auth-card__subtitle {
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.auth-card__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.auth-card__hint {
  display: block;
  margin-top: var(--space-4);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-align: center;
}

.auth-card__error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 0.95rem;
}

.btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Page header */
.page-header {
  margin-bottom: var(--space-5);
}

.page-header__subtitle {
  color: var(--color-text-muted);
  margin: 0;
}

.page-header__back {
  display: inline-block;
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.page-header__row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.page-header__row h1 {
  margin: 0;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--space-6);
}

.empty-state__title {
  margin-bottom: var(--space-2);
}

.empty-state__message {
  color: var(--color-text-muted);
  margin: 0;
}

/* Card title (used in detail panes) */
.card__title {
  margin: 0 0 var(--space-4);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

/* Sites grid */
.site-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-4);
}

.site-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
  transition: border-color 120ms ease, box-shadow 120ms ease, transform 120ms ease;
}

.site-card:hover {
  text-decoration: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.site-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.site-card__title {
  margin: 0;
  font-size: 1.05rem;
}

.site-card__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2) var(--space-3);
  margin: 0;
}

.site-card__meta div {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.site-card__meta dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.site-card__meta dd {
  margin: 0;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-card__flag {
  margin-top: auto;
}

/* Site detail layout */
.detail-grid {
  display: grid;
  grid-template-columns: minmax(240px, 320px) 1fr;
  gap: var(--space-5);
  align-items: start;
}

@media (max-width: 720px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

.detail-info__list {
  display: grid;
  gap: var(--space-3);
  margin: 0;
}

.detail-info__list div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.detail-info__list dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.detail-info__list dd {
  margin: 0;
  font-weight: 500;
  word-break: break-all;
}

.detail-info__list code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  background: var(--color-surface-alt);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
}

/* Live values block */
.detail-live__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.detail-live__header .card__title {
  margin: 0;
}

.detail-live__status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.detail-live__updated {
  font-size: 0.85rem;
}

.detail-live__error {
  margin: 0 0 var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-danger);
}

.detail-live__empty {
  margin: 0;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Admin shared */
[x-cloak] {
  display: none !important;
}

.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.btn--sm {
  padding: var(--space-1) var(--space-3);
  font-size: 0.85rem;
}

.admin-table__actions-col {
  width: 1%;
  white-space: nowrap;
}

.admin-table__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: flex-end;
}

.form-field__hint {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.form-field--inline {
  margin-bottom: var(--space-3);
}

.form-field__check {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
  cursor: pointer;
}

.form-field__check input {
  width: 18px;
  height: 18px;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
}

.modal__panel {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  width: 100%;
  max-width: 520px;
  max-height: calc(100vh - 4rem);
  overflow: auto;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.modal__header h2 {
  margin: 0;
  font-size: 1.1rem;
}

.modal__close {
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-muted);
}

.modal__close:hover {
  color: var(--color-text);
}

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

.modal__intro {
  margin-top: 0;
  color: var(--color-text-muted);
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

/* Rights matrix */
.rights-matrix__table th.rights-matrix__check,
.rights-matrix__table td.rights-matrix__check {
  text-align: center;
  width: 140px;
}

.rights-matrix__table input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.rights-matrix__hint {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.rights-matrix__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.rights-matrix__dirty {
  color: var(--color-warning);
  font-size: 0.9rem;
  font-weight: 500;
  margin-right: auto;
}

/* Site edit */
.site-edit__block {
  margin-bottom: var(--space-5);
}

.site-edit__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-4);
}

.site-edit__grid > .form-field {
  margin-bottom: 0;
}

.site-edit__subtitle {
  grid-column: 1 / -1;
  margin: var(--space-3) 0 0;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.site-edit__error,
.site-edit__success {
  grid-column: 1 / -1;
  margin: var(--space-3) 0 0;
}

.site-edit__actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  margin-top: var(--space-3);
}

@media (max-width: 720px) {
  .site-edit__grid {
    grid-template-columns: 1fr;
  }
}

.modbus-table__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.modbus-table__header .card__title {
  margin: 0;
}

.modbus-table input,
.modbus-table select {
  width: 100%;
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.modbus-table input:focus,
.modbus-table select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(29, 79, 215, 0.15);
}

.modbus-table__row--error input,
.modbus-table__row--error select {
  border-color: var(--color-danger);
  background: var(--color-danger-bg);
}

/* Fleet */
.fleet-counters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.fleet-counter {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  border-left-width: 4px;
}

.fleet-counter__value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.fleet-counter__label {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.fleet-counter--ok {
  border-left-color: var(--color-success);
}

.fleet-counter--warn {
  border-left-color: var(--color-warning);
}

.fleet-counter--down {
  border-left-color: var(--color-danger);
}

.fleet-counter--neutral {
  border-left-color: var(--color-text-muted);
}

.admin-toolbar--split {
  justify-content: space-between;
  align-items: center;
}

.admin-toolbar__group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.fleet-sort {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.fleet-sort:hover {
  color: var(--color-primary);
}

/* Diagnostic page */
.diagnostic__breadcrumb {
  margin: 0 0 var(--space-1);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.diagnostic > .card {
  margin-bottom: var(--space-4);
}

.diagnostic__control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-3);
}

.diagnostic__control-row .form-field {
  margin: 0;
  min-width: 120px;
}

.diagnostic__filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-3);
}

.diagnostic__filter-row .form-field {
  margin: 0;
  min-width: 140px;
  flex: 1 1 140px;
}

.diagnostic__table {
  font-size: 0.9rem;
}

.diagnostic__hex {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  word-break: break-all;
}

.diagnostic__row--error td {
  background: var(--color-danger-bg);
}