/* Alerts Page Styles */
/* ==============================
   Alerts Page
   ============================== */

/* ---- Alerts Hero ---- */
.alerts-hero {
  padding: var(--nm-space-3xl) var(--nm-space-lg) var(--nm-space-2xl);
  border-bottom: 1px solid var(--nm-border-subtle);
  background: linear-gradient(rgba(10, 10, 10, 0.6), rgba(10, 10, 10, 0.65)),
    url('/images/metro-alerts-hero.webp') 50% 99% / cover no-repeat;
  background-color: var(--nm-surface);
}

.alerts-hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.alerts-hero-label {
  display: block;
  font-family: var(--nm-font);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--nm-amber-dim);
  letter-spacing: 0.12em;
  margin-bottom: var(--nm-space-xs);
}

.alerts-hero-title {
  font-family: var(--nm-font);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 2.5rem);
  color: var(--nm-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.1;
  margin-bottom: var(--nm-space-sm);
}

.alerts-hero-subtitle {
  font-family: var(--nm-font);
  font-weight: 400;
  font-size: 1rem;
  color: var(--nm-text-primary);
  line-height: 1.6;
  max-width: 600px;
}

.alerts-page {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--nm-space-xl) var(--nm-space-lg);
}

.alerts-page-inner {
  display: flex;
  flex-direction: column;
  gap: var(--nm-space-lg);
}

/* ---- Controls Bar ---- */
.alerts-controls {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--nm-space-md);
  flex-wrap: wrap;
}

.alerts-controls-left {
  flex: 1;
  min-width: 0;
}

.alerts-controls-right {
  display: flex;
  align-items: center;
  gap: var(--nm-space-xs);
  flex-shrink: 0;
}

.alerts-updated {
  font-family: var(--nm-font);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--nm-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

/* ---- Line Filter Chips ---- */
.alerts-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--nm-space-xs);
}

.alerts-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  min-height: 44px;
  background-color: var(--nm-surface);
  border: 1px solid var(--nm-border);
  cursor: pointer;
  transition: background-color var(--nm-transition-fast), border-color var(--nm-transition-fast);
  user-select: none;
  -webkit-user-select: none;
}

.alerts-filter-chip:hover {
  background-color: var(--nm-surface-elevated);
  border-color: var(--nm-border-strong);
}

.alerts-filter-chip--active {
  background-color: var(--nm-surface-elevated);
  border-color: var(--nm-amber);
}

.alerts-filter-dot {
  width: 10px;
  height: 10px;
  border-radius: 50% !important;
  flex-shrink: 0;
}

.alerts-filter-label {
  font-family: var(--nm-font);
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--nm-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ---- Intro Paragraph ---- */
.alerts-intro {
  font-family: var(--nm-font);
  font-weight: 400;
  font-size: 1rem;
  color: var(--nm-text-secondary);
  line-height: 1.65;
  max-width: 700px;
}

.alerts-intro a {
  color: var(--nm-amber);
  text-decoration: none;
  font-weight: 600;
}

.alerts-intro a:hover {
  text-decoration: underline;
}

/* ---- Status Summary Bar ---- */
.alerts-status-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background-color: var(--nm-surface);
  border: 1px solid var(--nm-border);
  overflow: hidden;
}

.alerts-status-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.6rem 1rem;
  border-right: 1px solid var(--nm-border-subtle);
  border-bottom: 1px solid var(--nm-border-subtle);
}

.alerts-status-item:nth-child(3n) {
  border-right: none;
}

.alerts-status-item:nth-last-child(-n+3) {
  border-bottom: none;
}

.alerts-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50% !important;
  flex-shrink: 0;
}

.alerts-status-name {
  font-family: var(--nm-font);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--nm-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  flex: 1;
}

.alerts-status-value {
  font-family: var(--nm-font);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ---- Alert Cards ---- */
.alerts-list {
  display: flex;
  flex-direction: column;
  gap: var(--nm-space-md);
}

.alerts-card {
  background-color: var(--nm-surface);
  border: 1px solid var(--nm-border);
  overflow: hidden;
}

.alerts-card-severity {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.6rem 1.25rem;
  border-bottom: 1px solid var(--nm-border);
}

.alerts-card-severity.severity-delay {
  background-color: rgba(255, 82, 82, 0.08);
  border-left: 4px solid var(--nm-status-error);
}

.alerts-card-severity.severity-alert {
  background-color: rgba(255, 82, 82, 0.08);
  border-left: 4px solid var(--nm-status-error);
}

.alerts-card-severity.severity-closure {
  background-color: rgba(255, 82, 82, 0.12);
  border-left: 4px solid var(--nm-status-error);
}

.alerts-card-severity.severity-caution {
  background-color: rgba(255, 179, 0, 0.08);
  border-left: 4px solid var(--nm-status-warn);
}

.alerts-card-severity.severity-advisory {
  background-color: rgba(64, 196, 255, 0.06);
  border-left: 4px solid var(--nm-status-info);
}

.alerts-card-icon {
  display: inline-flex;
  flex-shrink: 0;
}

.severity-delay .alerts-card-icon,
.severity-alert .alerts-card-icon,
.severity-closure .alerts-card-icon {
  color: var(--nm-status-error);
}

.severity-caution .alerts-card-icon {
  color: var(--nm-status-warn);
}

.severity-advisory .alerts-card-icon {
  color: var(--nm-status-info);
}

.alerts-card-severity-label {
  font-family: var(--nm-font);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  flex: 1;
}

.severity-delay .alerts-card-severity-label,
.severity-alert .alerts-card-severity-label,
.severity-closure .alerts-card-severity-label {
  color: var(--nm-status-error);
}

.severity-caution .alerts-card-severity-label {
  color: var(--nm-status-warn);
}

.severity-advisory .alerts-card-severity-label {
  color: var(--nm-status-info);
}

.alerts-card-time {
  font-family: var(--nm-font);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--nm-text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.alerts-card-body {
  padding: 1rem 1.25rem;
}

.alerts-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--nm-space-xs);
  margin-bottom: var(--nm-space-sm);
}

.alert-line-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border: 1px solid;
  font-family: var(--nm-font);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--nm-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.alert-line-pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50% !important;
  flex-shrink: 0;
}

.alerts-card-desc {
  font-family: var(--nm-font);
  font-weight: 400;
  font-size: 1rem;
  color: var(--nm-text-secondary);
  line-height: 1.65;
}

/* .alerts-inline-link styles are now in global styles.css */

.alerts-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: var(--nm-space-sm);
  font-family: var(--nm-font);
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--nm-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: color var(--nm-transition-normal);
  min-height: 44px;
  padding: 10px 0;
}

.alerts-card-cta:hover {
  color: var(--nm-amber);
}

/* ---- Empty State ---- */
.alerts-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  background-color: var(--nm-surface);
  border: 1px solid var(--nm-border);
}

.alerts-empty-icon {
  color: var(--nm-status-ok);
  margin-bottom: var(--nm-space-md);
}

.alerts-empty-title {
  font-family: var(--nm-font);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--nm-status-ok);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--nm-space-xs);
}

.alerts-empty-text {
  font-family: var(--nm-font);
  font-weight: 400;
  font-size: 1rem;
  color: var(--nm-text-secondary);
  max-width: 360px;
}

/* ---- Skeleton Loading ---- */
.alerts-skeleton {
  display: flex;
  flex-direction: column;
  gap: var(--nm-space-md);
}

.alerts-skeleton-card {
  background-color: var(--nm-surface);
  border: 1px solid var(--nm-border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: var(--nm-space-sm);
}

.alerts-skeleton-block {
  height: 14px;
  background-color: var(--nm-surface-elevated);
  animation: shimmer 1.5s infinite ease-in-out;
}

.alerts-skeleton-block.sk-title {
  width: 40%;
  height: 18px;
}

.alerts-skeleton-block.sk-body {
  width: 90%;
}

.alerts-skeleton-block.sk-body-short {
  width: 60%;
}

/* ---- Historical Alerts ---- */
.alerts-history-section {
  margin-top: var(--nm-space-md);
}

.alerts-history-header {
  padding: 0.6rem 0;
  margin-bottom: var(--nm-space-sm);
  border-bottom: 2px solid var(--nm-border);
}

.alerts-history-title {
  font-family: var(--nm-font);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--nm-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.alerts-history-list {
  display: flex;
  flex-direction: column;
  gap: var(--nm-space-sm);
}

/* ---- Alerts FAQ Section ---- */
.alerts-faq {
  padding: var(--nm-space-2xl) var(--nm-space-lg);
  border-top: 1px solid var(--nm-border-subtle);
}

.alerts-faq .section-heading {
  font-family: var(--nm-font);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--nm-text-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--nm-space-xs);
}

.alerts-faq .section-subheading {
  font-family: var(--nm-font);
  font-weight: 400;
  font-size: 1rem;
  color: var(--nm-text-muted);
  margin-bottom: var(--nm-space-xl);
  line-height: 1.5;
}

/* ---- Alerts Page Responsive ---- */
@media (max-width: 768px) {
  .alerts-page {
    padding: var(--nm-space-lg) var(--nm-space-md);
  }

  .alerts-controls {
    flex-direction: column;
    gap: var(--nm-space-sm);
  }

  .alerts-controls-right {
    align-self: flex-end;
  }

  .alerts-status-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .alerts-status-item:nth-child(3n) {
    border-right: 1px solid var(--nm-border-subtle);
  }

  .alerts-status-item:nth-child(2n) {
    border-right: none;
  }

  .alerts-status-item:nth-last-child(-n+3) {
    border-bottom: 1px solid var(--nm-border-subtle);
  }

  .alerts-status-item:nth-last-child(-n+2) {
    border-bottom: none;
  }

  .alerts-card-body {
    padding: 0.75rem 1rem;
  }

  .alerts-card-severity {
    padding: 0.5rem 1rem;
  }
}