/* ────────────────────────────────────────────────────────────
 * aeroStations — Componentes semánticos
 * Clases reutilizables: .nav, .hero, .metric, .chip, .btn-*,
 * .station-pill, .status-active, .alert-card, .history (table).
 * ──────────────────────────────────────────────────────────── */

/* ─── NAV ─── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  margin-bottom: 36px;
}
.brand {
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: 0.05em;
}
.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  color: var(--on-bg-muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color var(--dur-fast) var(--ease);
}
.nav-links a:hover { color: var(--on-bg); }
.nav-links a.active { color: var(--brand); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--brand);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ─── Buttons ─── */
.icon-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--on-bg-muted);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 18px;
  transition: background var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}
.icon-btn:hover { background: var(--surface); color: var(--on-bg); }
.icon-btn:active { transform: scale(0.94); }

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--surface);
  color: var(--brand);
  display: grid;
  place-items: center;
  font-size: 16px;
  box-shadow: 0 0 0 1px var(--divider) inset;
}

/* ─── Page header ─── */
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 6px;
}
.page-title {
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.018em;
  line-height: 1.15;
  color: var(--on-bg);
}

.station-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: none;
  border-radius: var(--radius-full);
  padding: 12px 20px;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-bg);
  box-shadow: 0 0 0 1px var(--divider) inset;
  min-height: 44px;
  transition: background var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}
.station-pill:hover { background: var(--surface-elevated); }
.station-pill:active { transform: scale(0.98); }
.station-pill .pin { color: var(--brand); font-size: 1rem; }
.station-pill .chev { color: var(--on-bg-muted); font-size: 0.875rem; }

/* ─── Top grid (hero + alert) ─── */
.top-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

/* ─── Hero card ─── */
.hero {
  position: relative;
  background: linear-gradient(155deg, var(--hero-grad-top) 0%, var(--hero-grad-bot) 100%);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
  overflow: hidden;
  color: #fff;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--hero-inset);
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 50% at 20% 0%, rgba(255, 255, 255, 0.18), transparent 60%),
    radial-gradient(60% 40% at 100% 100%, rgba(13, 92, 182, 0.4), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero-mountains {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 75%;
  pointer-events: none;
  z-index: 1;
}
.hero-top, .hero-meta { position: relative; z-index: 2; }

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
}
.hero-eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 6px;
}
.hero-temp {
  font-size: clamp(3rem, 7vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: #fff;
  font-feature-settings: "tnum";
}
.hero-condition {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero-sun {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  display: grid;
  place-items: center;
  color: #fff;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25) inset;
}
.hero-sun .ic { width: 26px; height: 26px; stroke-width: 1.6; }
.hero-condition-label {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
}
.hero-meta {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}
.hero-meta-item { display: flex; flex-direction: column; gap: 4px; }
.hero-meta-label {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}
.hero-meta-value {
  font-size: 1.0625rem;
  font-weight: 600;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-feature-settings: "tnum";
}
.hero-meta-value .ic { width: 1.05em; height: 1.05em; opacity: 0.85; }

/* ─── Alert / Status card ─── */
.alert-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-card);
}
.alert-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--alert);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 20px rgba(255, 107, 61, 0.35),
              0 1px 0 rgba(255, 255, 255, 0.18) inset;
}
.alert-icon .ic { width: 22px; height: 22px; stroke-width: 2; }
.alert-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--alert);
  letter-spacing: -0.01em;
}
.alert-body {
  font-size: 0.8125rem;
  color: var(--on-bg-muted);
  line-height: 1.55;
  flex: 1;
}
.btn-alert {
  background: var(--alert);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 0 8px 0 20px;
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 6px 18px rgba(255, 107, 61, 0.32),
              0 1px 0 rgba(255, 255, 255, 0.18) inset;
  transition: filter var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease);
  text-decoration: none;
}
.btn-alert .arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  display: grid;
  place-items: center;
  transition: transform var(--dur-fast) var(--ease);
}
.btn-alert:hover {
  filter: brightness(1.06);
  box-shadow: 0 10px 26px rgba(255, 107, 61, 0.42),
              0 1px 0 rgba(255, 255, 255, 0.18) inset;
}
.btn-alert:hover .arrow { transform: translateX(3px); }
.btn-alert:active { transform: scale(0.98); }

/* ─── Metric grid ─── */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.metric {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 132px;
  box-shadow: var(--shadow-card);
  transition: transform var(--dur-mid) var(--ease);
}
.metric:hover { transform: translateY(-2px); }
.metric-icon {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  font-size: 20px;
}
.metric-icon--blue { color: var(--brand); }
.metric-icon--alert { color: var(--alert); }
.metric-icon--purple { color: var(--purple); }
.metric-icon--mute { color: var(--on-bg-muted); }
.metric-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-bg-muted);
}
.metric-value {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--on-bg);
  font-feature-settings: "tnum";
}
.metric-sub {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.metric-sub--brand { color: var(--brand); }
.metric-sub--alert { color: var(--alert); }
.metric-sub--success { color: var(--success); }
.metric-sub--mute { color: var(--on-bg-muted); }

/* ─── Chips ─── */
.chip {
  display: inline-block;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.chip--info { background: var(--info-soft); color: var(--brand); }
.chip--alert { background: var(--alert-soft); color: var(--alert); }
.chip--success { background: var(--success-soft); color: var(--success); }

/* ─── Status Active ─── */
.status-active {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  position: relative;
  flex-shrink: 0;
}
.status-dot::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--success);
  opacity: 0.4;
  animation: breathe 2200ms var(--ease-spring) infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(1); opacity: 0.45; }
  50%      { transform: scale(1.55); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .status-dot::before { animation: none; }
}

/* ─── Theme toggle FAB ─── */
.theme-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  background: var(--surface);
  color: var(--on-bg);
  border: none;
  border-radius: var(--radius-full);
  padding: 0 18px;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: var(--shadow-fab);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  transition: transform var(--dur-fast) var(--ease);
}
.theme-fab:hover { transform: translateY(-2px); }
.theme-fab:active { transform: scale(0.97); }
.theme-fab .ic { width: 16px; height: 16px; }

/* ─── Footer ─── */
.footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--divider);
  font-size: 0.75rem;
  color: var(--on-bg-muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer a { color: var(--brand); text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* ─── Chart card ─── */
.chart-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}
.chart-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.chart-card-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--on-bg);
}
.metric-tabs {
  display: inline-flex;
  gap: 4px;
  background: var(--surface-muted);
  border-radius: var(--radius-full);
  padding: 4px;
}
.metric-tab {
  background: transparent;
  border: none;
  color: var(--on-bg-muted);
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.metric-tab:hover { color: var(--on-bg); }
.metric-tab.is-active {
  background: var(--surface-elevated);
  color: var(--brand);
  box-shadow: 0 1px 0 rgba(255,255,255,.04) inset;
}

/* ─── History table ─── */
.history-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}
.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
}
.history-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--on-bg);
}
.history-meta {
  font-size: 0.75rem;
  color: var(--on-bg-muted);
}
.history-table {
  width: 100%;
  border-collapse: collapse;
  font-feature-settings: "tnum";
}
.history-table th {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-bg-muted);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--divider);
}
.history-table td {
  padding: 12px;
  font-size: 0.875rem;
  color: var(--on-bg);
  border-bottom: 1px solid var(--divider);
}
.history-table tr:last-child td { border-bottom: none; }
.history-table tr:hover td { background: var(--surface-muted); }
.history-table .num { font-variant-numeric: tabular-nums; }

/* ─── Station selector dropdown ─── */
.station-dropdown {
  position: relative;
}
.station-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 6px;
  box-shadow: var(--shadow-card);
  min-width: 220px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 50;
}
.station-dropdown-menu button {
  background: transparent;
  border: none;
  color: var(--on-bg);
  font-family: var(--font);
  font-size: 0.875rem;
  text-align: left;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: background var(--dur-fast) var(--ease);
}
.station-dropdown-menu button:hover { background: var(--surface-muted); }
.station-dropdown-menu button.is-active {
  background: var(--info-soft);
  color: var(--brand);
}
.station-dropdown-menu .sd-name { font-weight: 600; }
.station-dropdown-menu .sd-loc {
  font-size: 0.75rem;
  color: var(--on-bg-muted);
}

/* ─── Push notifications center ─── */
.push-center { position: relative; }
.push-center .icon-btn.is-active { color: var(--brand); }
.push-center .push-dot {
  position: absolute;
  top: 8px; right: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 2px var(--bg);
  pointer-events: none;
}
.push-menu {
  position: absolute;
  top: calc(100% + 8px); right: 0;
  min-width: 220px;
  background: var(--surface);
  border: 1px solid var(--surface-muted);
  border-radius: 12px;
  padding: 6px;
  box-shadow: 0 12px 32px rgba(0,0,0,.24);
  z-index: 40;
}
.push-menu-row {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  background: transparent;
  border: 0;
  border-radius: 8px;
  color: var(--on-bg);
  font: inherit;
  font-size: 0.875rem;
  cursor: pointer;
}
.push-menu-row:hover:not(:disabled) { background: var(--surface-muted); }
.push-menu-row:disabled { opacity: .6; cursor: wait; }
.push-menu-row--muted { color: var(--on-bg-muted); cursor: default; }
.push-menu-row--muted:hover { background: transparent; }
.push-menu-row--danger { color: var(--alert); }

/* ─── Responsive ─── */
@media (max-width: 880px) {
  .layout { padding: 16px 20px 60px; }
  .nav-links { display: none; }
  .top-grid { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .hero-meta { gap: 24px; }
  .history-table { font-size: 0.8125rem; }
  .history-table th:nth-child(n+5),
  .history-table td:nth-child(n+5) { display: none; } /* oculta cols extra en mobile */
}