/* ============================================================
   LAYOUT.CSS
   eIAWS — Enterprise Integrated Aviation Weather System
   I.M. Systems Group
   Page shell, navbar, split layout, content grids
   ============================================================ */

/* ----------------------------------------------------------
   PAGE SHELL
   ---------------------------------------------------------- */
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-wrapper {
  width: 100%;
  max-width: var(--panel-max-width);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

/* ----------------------------------------------------------
   NAVBAR
   ---------------------------------------------------------- */
.navbar {
  width: 100%;
  height: auto;
  min-height: var(--navbar-height);
  background-color: var(--bg-navbar);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  padding: var(--space-2) var(--space-6);
  gap: var(--space-3);
}

.navbar-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex-shrink: 0;
}

.navbar-brand-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-accent-primary);
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.navbar-brand-reg {
  font-size: 0.55em;
  vertical-align: super;
  color: var(--color-accent-primary);
  font-weight: var(--weight-normal);
}

.navbar-brand-product {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  line-height: 1.3;
  white-space: nowrap;
}

.navbar-brand-company {
  font-size: var(--text-xs);
  color: var(--text-muted);
  letter-spacing: 0.04em;
  line-height: 1.3;
}

/* Faint vertical divider between brand and tabs */
.navbar-divider {
  width: 1px;
  height: 36px;
  background-color: var(--border-color);
  flex-shrink: 0;
  margin: 0 var(--space-2);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  flex-wrap: wrap;
}

.navbar-link {
  padding: var(--space-2) var(--space-4);
  border-radius: var(--border-radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-secondary);
  background-color: transparent;
  transition: var(--transition-standard);
  cursor: pointer;
  border: none;
  text-decoration: none;
  white-space: nowrap;
}

.navbar-link:hover {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.navbar-link.active {
  background-color: var(--color-action);
  color: var(--text-primary);
}

.navbar-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
  flex-wrap: wrap;
  flex-shrink: 0;
}

/* On smaller screens, controls drop to their own full-width row */
@media (max-width: 900px) {
  .navbar-controls {
    width: 100%;
    margin-left: 0;
    padding-top: var(--space-2);
    border-top: 1px solid var(--border-color);
    justify-content: flex-start;
  }

  .navbar-divider {
    display: none;
  }

  /* Timezone select shrinks to fit */
  #timezoneSelect {
    min-width: 0 !important;
    flex: 1;
    max-width: 260px;
  }
}

/* ----------------------------------------------------------
   MAIN CONTENT AREA
   ---------------------------------------------------------- */
.main-content {
  flex: 1;
  width: 100%;
  padding: 0;
}

/* ----------------------------------------------------------
   DASHBOARD PANEL (dark container wrapping everything)
   ---------------------------------------------------------- */
.dashboard-panel {
  background-color: var(--bg-panel);
  padding: var(--space-6);
}

/* ----------------------------------------------------------
   SPLIT LAYOUT — Left observations / Right map
   ---------------------------------------------------------- */
.split-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .split-layout {
    flex-direction: row;
    align-items: flex-start;
  }
}

.split-left {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
}

.split-right {
  width: 100%;
}

@media (min-width: 1024px) {
  .split-right {
    width: 50%;
    flex-shrink: 0;
  }
}

@media (min-width: 1024px) {
  .split-right--wide {
    width: 70%;
    flex-shrink: 0;
  }
}

/* ----------------------------------------------------------
   METRICS GRID — 2-column card grid
   ---------------------------------------------------------- */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (max-width: 640px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}

/* ----------------------------------------------------------
   MAP CONTAINER
   ---------------------------------------------------------- */
.map-wrapper {
  position: relative;        /* anchor for Him9 timestamp overlay */
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-lg);
}

#map {
  width: 100%;
  height: var(--map-height);
  border-radius: var(--border-radius-xl);
}

/* ----------------------------------------------------------
   UTILITY LAYOUT HELPERS
   ---------------------------------------------------------- */
.flex-row {
  display: flex;
  flex-direction: row;
  align-items: center;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-1 {
  flex: 1;
}

.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }

.mt-2  { margin-top: var(--space-2); }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mb-2  { margin-bottom: var(--space-2); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }

.w-full  { width: 100%; }
.h-full  { height: 100%; }

.text-center { text-align: center; }
.text-right  { text-align: right; }

.hidden { display: none !important; }