/* ============================================================
   CHARDI.AI — RESPONSIVE SYSTEM
   Mobile-first overrides and breakpoint enhancements
   ============================================================ */

/* ── Mobile Base Overrides ── 
   These rules apply to all screens and establish the mobile-first baseline
   by overriding desktop-centric styles in base CSS files. */

:root {
  --content-padding: var(--spacing-md);
  /* Fluid Typography */
  --font-size-h1: clamp(1.5rem, 5vw, 2.25rem);
  --font-size-stat: clamp(1.5rem, 6vw, 2rem);
}

html {
  font-size: 15px; /* Base for rem units */
}

body {
  overflow-x: hidden;
  width: 100%;
}

/* Navbar simplification for mobile */
.navbar__tagline { display: none; }
.navbar__scraped-text { display: none; }
.navbar__logo { font-size: clamp(1.25rem, 4vw, 1.5rem); }

/* Stats Bar Reflow */
.stats-bar {
  padding: var(--spacing-md) 0;
}

.stats-bar__grid {
  grid-template-columns: 1fr;
  gap: 1px;
}

.stat-card {
  padding: var(--spacing-md);
  min-height: 72px;
}

.stat-card__value {
  font-size: var(--font-size-stat);
}

/* Layout stacking */
.main-layout {
  flex-direction: column;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
}

/* Sidebar behavior */
.sidebar {
  display: none; /* Hide desktop sidebar by default */
}

.sidebar--drawer {
  display: flex; /* Drawer sidebar is active on mobile */
}

/* Content Toolbar stacking */
.content-toolbar {
  flex-direction: column;
  align-items: stretch;
  gap: var(--spacing-sm);
}

.content-toolbar__left {
  width: 100%;
}

.content-toolbar__right {
  width: 100%;
  justify-content: flex-end;
  gap: var(--spacing-xs);
}

/* Buttons and Touch Targets */
.btn {
  min-height: 44px; /* Accessible touch target */
  padding: 0 var(--spacing-lg);
}

.btn--icon {
  padding: 0 !important;
  width: 44px !important; /* Match touch target height for a square button */
}

.btn--sm {
  min-height: 36px;
}

.filter-toggle-btn {
  /* display: flex handled in Bug Fixes section */
}

/* Search Input accessibility */
.input--lg {
  height: 48px;
}

/* Pagination Stacking */
.pagination {
  flex-direction: column;
  align-items: stretch;
  gap: var(--spacing-md);
  text-align: center;
}

.pagination__controls,
.pagination__jump {
  justify-content: center;
}

/* Chart Reflow */
.chart-canvas-wrapper,
.chart-skeleton {
  height: 200px;
}

/* Detail Page Fluidity */
.detail-header__title {
  font-size: var(--font-size-h1);
}

.metadata-grid,
.detail-metadata-grid {
  grid-template-columns: 1fr !important;
}

.source-box {
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: flex-start;
}

/* ══════════════════════════════════════════
   TABLE RESPONSIVENESS (Mobile, Tablet, Desktop)
   ══════════════════════════════════════════ */

/* Mobile: Cards View */
@media (max-width: 767px) {
  .table-wrapper {
    margin: 0 calc(-1 * var(--spacing-md));
    border-radius: 0;
    border: none;
    background: transparent;
  }
  
  .table-scroll {
    overflow-x: visible;
  }

  .tenders-table {
    min-width: 0;
    display: block;
  }
  
  .tenders-table thead {
    display: none;
  }
  
  .tenders-table tbody {
    display: block;
    padding: 0 var(--spacing-md);
  }
  
  .tenders-table tbody tr {
    display: block;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    background: var(--color-surface);
  }
  
  .tenders-table tbody td {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
    gap: 8px;
    min-height: 44px; /* Mobile touch target */
  }
  
  .tenders-table tbody td:last-child {
    border-bottom: none;
  }

  /* Inject Labels via CSS :nth-child */
  .tenders-table tbody td::before {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    white-space: nowrap;
  }
  
  .tenders-table tbody td:nth-child(2)::before { content: "Buyer"; }
  .tenders-table tbody td:nth-child(3)::before { content: "State"; }
  .tenders-table tbody td:nth-child(4)::before { content: "Category"; }
  .tenders-table tbody td:nth-child(5)::before { content: "Value"; }
  .tenders-table tbody td:nth-child(6)::before { content: "Deadline"; }
  .tenders-table tbody td:nth-child(7)::before { content: "Status"; }
  .tenders-table tbody td:nth-child(8)::before { content: "Source"; }

  /* Title Cell (Full width, no label) */
  .tenders-table tbody td:nth-child(1) {
    display: block;
    font-size: var(--text-base);
    font-weight: 500;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
    align-items: flex-start;
  }
  
  .tenders-table tbody td:nth-child(1)::before {
    display: none;
  }

  /* Specific alignments */
  .tenders-table tbody td:nth-child(7),
  .tenders-table tbody td:nth-child(8),
  .tenders-table tbody td:nth-child(6) {
    flex-direction: row;
    justify-content: space-between;
  }

  /* Hide less important columns */
  .tenders-table tbody td:nth-child(3),
  .tenders-table tbody td:nth-child(4) {
    display: none;
  }

  .td-title__text {
    display: block; /* Override line-clamp to show full title on cards */
    -webkit-line-clamp: unset;
  }
}

/* Tablet: Condensed Table */
@media (min-width: 768px) and (max-width: 1023px) {
  .table-wrapper {
    margin: 0;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
  }

  .tenders-table {
    min-width: 100%;
  }

  /* Hide lower-priority columns */
  .tenders-table th:nth-child(3),
  .tenders-table td:nth-child(3),
  .tenders-table th:nth-child(4),
  .tenders-table td:nth-child(4),
  .tenders-table th:nth-child(8),
  .tenders-table td:nth-child(8) {
    display: none;
  }

  /* Let the table breathe */
  .tenders-table th, 
  .tenders-table td {
    padding: 10px 8px;
    font-size: var(--text-sm);
  }

  /* Title column gets more room */
  .tenders-table th:nth-child(1),
  .tenders-table td:nth-child(1) {
    width: 35%;
  }

  /* Prevent Buyer column from taking too much space */
  .tenders-table th:nth-child(2),
  .tenders-table td:nth-child(2) {
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  
  .td-buyer__name {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

/* Desktop: Polished Table */
@media (min-width: 1024px) {
  .tenders-table th:nth-child(1),
  .tenders-table td:nth-child(1) {
    max-width: 320px;
  }

  .tenders-table td:nth-child(1) .td-title__text,
  .tenders-table td:nth-child(2) .td-buyer__name {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    white-space: normal;
  }

  .tenders-table th, 
  .tenders-table td {
    padding: 12px 10px;
  }
}

/* ══════════════════════════════════════════
   LARGE PHONES (min-width: 425px)
   ══════════════════════════════════════════ */
@media (min-width: 425px) {
  .stats-bar__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ══════════════════════════════════════════
   TABLETS (min-width: 768px)
   ══════════════════════════════════════════ */
@media (min-width: 768px) {
  :root {
    --content-padding: var(--spacing-lg);
  }

  .navbar__scraped-text { display: inline; }

  .main-layout {
    padding: var(--spacing-lg);
  }

  .content-toolbar {
    flex-direction: row;
    align-items: center;
  }

  .content-toolbar__right {
    width: auto;
  }

  .pagination {
    flex-direction: row;
    justify-content: space-between;
  }

  /* Adjust button sizes for larger screens */
  .btn {
    min-height: 36px;
    padding: 0 var(--spacing-md);
  }

  .btn--sm {
    min-height: 28px;
  }

  .metadata-grid,
  .detail-metadata-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .source-box {
    flex-direction: row;
    align-items: center;
  }
}

/* ══════════════════════════════════════════
   SMALL LAPTOPS (min-width: 1024px)
   ══════════════════════════════════════════ */
@media (min-width: 1024px) {
  .navbar__tagline { display: block; }

  .stats-bar__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .main-layout {
    flex-direction: row;
    align-items: flex-start;
    padding-top: var(--spacing-xl);
    max-width: var(--page-max-width);
    margin: 0 auto;
  }

  /* Reveal desktop sidebar, hide mobile toggle */
  .sidebar {
    display: flex;
  }

  .filter-toggle-btn {
    display: none !important;
  }

  .chart-canvas-wrapper,
  .chart-skeleton {
    height: 220px;
  }

  .metadata-grid,
  .detail-metadata-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

/* ══════════════════════════════════════════
   DESKTOPS (min-width: 1280px)
   ══════════════════════════════════════════ */
@media (min-width: 1280px) {
  :root {
    --sidebar-width: 272px;
  }

  .page-container,
  .navbar__inner {
    padding: 0 var(--spacing-xl);
  }
}

/* ══════════════════════════════════════════
   LARGE SCREENS (min-width: 1536px)
   ══════════════════════════════════════════ */
@media (min-width: 1536px) {
  html {
    font-size: 16px; /* Slightly larger base for ultra-wide screens */
  }

  .page-container,
  .main-layout,
  .navbar__inner {
    max-width: 1600px;
  }
}

/* ── Utility: Hide on mobile/desktop ── */
.hide-mobile {
  display: none !important;
}

@media (min-width: 768px) {
  .hide-mobile { display: block !important; }
  .hide-desktop { display: none !important; }
}

/* ── Bug Fixes ── */

/* Bug 1: Ensure Navbar Logo/Brand SVG is visible and correctly sized on mobile */
.navbar__brand svg {
  display: inline-block;
  width: 32px;
  height: 32px;
  color: var(--color-text-primary);
  fill: currentColor;
  vertical-align: middle;
  flex-shrink: 0;
  overflow: visible;
}

@media (max-width: 768px) {
  .navbar__brand svg {
    width: 28px;
    height: 28px;
  }
}

/* Ensure the brand container doesn't clip the icon */
.navbar__brand {
  overflow: visible !important;
}

/* Bug 1 safety: ensure text-based logo is always flex and centered */
.navbar__logo {
  display: flex !important;
  align-items: center;
  min-height: 36px;
}

/* Bug 1: Prevent chart bars from being absurdly wide on sparse data (safety net) */
.recharts-bar-rectangle rect,
[class*="bar-chart"] rect,
canvas#state-chart {
  max-width: 100%;
}

/* Consolidated Filter Toggle Fix: Visible only on mobile/tablet */
@media (max-width: 1023px) {
  .filter-toggle-btn {
    display: flex !important;
    position: relative;
  }

  .filter-toggle-btn svg {
    width: 20px !important;
    height: 20px !important;
    stroke: var(--color-text-primary) !important;
    stroke-width: 2.2px !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }

  .filter-toggle-btn svg path {
    stroke: inherit !important;
  }
}

/* Ensure search and other icons are also visible */
.navbar svg,
.search-wrapper svg,
.btn svg,
[class*="icon"] svg {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
  overflow: visible;
}

/* Ensure color inheritance for search icon if it'scurrentColor */
.search-wrapper__icon {
  color: var(--color-text-muted);
}

.search-wrapper:focus-within .search-wrapper__icon {
  color: var(--color-accent);
}