/**
 * Yemen Opportunities Portal - Stylesheet
 * Mobile-first responsive styling with CSS logical properties for seamless RTL/LTR support.
 * System font stack only - Zero CDN or external dependencies.
 */

:root {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-hover: #f1f5f9;
  --color-border: #cbd5e1;
  --color-border-subtle: #e2e8f0;

  --color-text-main: #0f172a;
  --color-text-muted: #334155;
  --color-text-inverse: #ffffff;

  --color-primary: #1e40af;
  --color-primary-hover: #1e3a8a;
  --color-primary-light: #eff6ff;
  --color-primary-border: #bfdbfe;

  --color-badge-bg: #e0f2fe;
  --color-badge-text: #0369a1;

  --color-warning-bg: #fef3c7;
  --color-warning-text: #92400e;
  --color-warning-border: #fcd34d;

  --color-success-bg: #dcfce7;
  --color-success-text: #166534;

  --color-error-bg: #fee2e2;
  --color-error-text: #991b1b;

  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, Tahoma, "Noto Sans Arabic", sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.06);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);

  --min-touch-target: 44px;
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

html {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

/* Accessibility: Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  inset-inline-start: 1rem;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
  outline: 3px solid #facc15;
  outline-offset: 2px;
}

/* Keyboard Focus Indicators */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Header */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.header-container {
  max-width: 1200px;
  margin-inline: auto;
  padding: 1rem 0.75rem;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.header-brand {
  flex: 1 1 auto;
  min-width: 0;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.25;
  overflow-wrap: break-word;
}

@media (min-width: 600px) {
  .site-title {
    font-size: 1.5rem;
  }
}

.site-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
  line-height: 1.4;
  overflow-wrap: break-word;
}

.header-actions {
  flex: 0 0 auto;
}

.btn-lang {
  min-height: var(--min-touch-target);
  min-width: var(--min-touch-target);
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-primary-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-lang:hover {
  background-color: #dbeafe;
}

/* Main Content Layout */
.main-content {
  flex: 1;
  padding-block: 1.25rem 2.5rem;
  width: 100%;
}

.content-container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 0.75rem;
  width: 100%;
}

/* Controls Section (Search + Filters) */
.controls-section {
  margin-bottom: 1.5rem;
}

.search-container {
  margin-bottom: 1rem;
}

.search-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 0.375rem;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.search-input {
  width: 100%;
  min-height: var(--min-touch-target);
  padding: 0.625rem 0.875rem;
  padding-inline-end: 2.75rem;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--color-text-main);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
  outline: none;
}

.clear-search-btn {
  position: absolute;
  inset-inline-end: 0.5rem;
  min-width: 32px;
  min-height: 32px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: 50%;
}

.clear-search-btn:not([hidden]) {
  display: flex;
}

.clear-search-btn:hover {
  color: var(--color-text-main);
  background-color: var(--color-surface-hover);
}

/* Filters Card */
.filters-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.filters-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.filters-heading {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--min-touch-target);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-family: inherit;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

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

.btn-secondary {
  background-color: #f1f5f9;
  color: #1e293b;
  border-color: #cbd5e1;
}

.btn-secondary:hover {
  background-color: #e2e8f0;
}

.filters-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  width: 100%;
}

@media (min-width: 600px) {
  .filters-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .filters-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.filter-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.filter-select {
  width: 100%;
  min-height: var(--min-touch-target);
  padding: 0.5rem 0.625rem;
  font-size: 0.875rem;
  font-family: inherit;
  color: var(--color-text-main);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.filter-select:focus {
  border-color: var(--color-primary);
  outline: none;
}

/* Results Status Bar */
.results-status-bar {
  margin-bottom: 1rem;
}

.results-count {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  padding-inline-start: 0.25rem;
}

/* Opportunities Grid */
.opportunities-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  width: 100%;
}

@media (min-width: 768px) {
  .opportunities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .opportunities-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Opportunity Card */
.opportunity-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.125rem 1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  overflow-wrap: break-word;
  word-break: break-word;
  min-width: 0;
}

.opportunity-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-border);
}

/* Card Badges Row */
.card-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 9999px;
  line-height: 1.2;
}

.badge-type {
  background-color: var(--color-badge-bg);
  color: var(--color-badge-text);
}

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

.badge-delivery {
  background-color: #f3e8ff;
  color: #6b21a8;
}

.badge-closing-soon {
  background-color: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning-border);
}

.badge-status {
  background-color: #e2e8f0;
  color: #334155;
}

/* Card Headings */
.card-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.35;
}

.card-org {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

/* Card Meta Details (Chips & Lists) */
.card-meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.meta-chip {
  background-color: #f1f5f9;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.meta-chip-category {
  background-color: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.meta-chip-country {
  background-color: #f8fafc;
  border: 1px solid var(--color-border);
}

/* Deadline Box */
.card-deadline-box {
  background-color: #f8fafc;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.375rem 0.625rem;
  font-size: 0.8125rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.deadline-text {
  font-weight: 600;
}

/* Short Description */
.card-description {
  font-size: 0.84375rem;
  line-height: 1.45;
  color: var(--color-text-muted);
}

/* Card Footer / Action Link */
.card-footer {
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.source-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  min-height: var(--min-touch-target);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  padding: 0.25rem 0;
}

.source-link:hover {
  text-decoration: underline;
  color: var(--color-primary-hover);
}

.deadline-status-text {
  color: var(--color-text-muted);
  font-weight: 500;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
}

.details-link {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-border);
}

.details-link:hover {
  color: var(--color-text-inverse);
  background-color: var(--color-primary);
  text-decoration: none;
}

.favorite-button {
  color: var(--color-text-main);
  background-color: var(--color-surface);
  border-color: var(--color-border);
}

.favorite-button:hover {
  background-color: var(--color-surface-hover);
}

.favorite-button[aria-pressed="true"] {
  color: #854d0e;
  background-color: #fef9c3;
  border-color: #fde047;
}

/* Empty & Error States */
.empty-state, .error-state {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1rem;
  text-align: center;
  max-width: 500px;
  margin-inline: auto;
  box-shadow: var(--shadow-sm);
  width: 100%;
}

.empty-state-icon, .error-state-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.empty-title, .error-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 0.375rem;
}

.empty-message, .error-message {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  line-height: 1.4;
}

.error-state {
  border-color: var(--color-error-bg);
  background-color: #fffaf0;
}

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding-block: 1.25rem;
  margin-top: auto;
  width: 100%;
}

.footer-container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 0.75rem;
  text-align: center;
}

.footer-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* Screen Reader Only Utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* Opportunity Detail Page */

.detail-page-container {
  max-width: 960px;
}

.detail-navigation {
  margin-bottom: 1rem;
}

.detail-loading {
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
}

.detail-card {
  width: 100%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.detail-header {
  padding: 1.25rem 1rem;
  background:
    linear-gradient(
      135deg,
      var(--color-primary-light),
      var(--color-surface)
    );
  border-bottom: 1px solid var(--color-border-subtle);
}

.detail-title {
  margin-top: 0.75rem;
  color: var(--color-text-main);
  font-size: clamp(1.4rem, 5vw, 2rem);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.detail-organization {
  margin-top: 0.5rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.detail-favorite-button {
  width: 100%;
  margin-top: 1rem;
}

.detail-section {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--color-border-subtle);
}

.detail-section:last-child {
  border-bottom: 0;
}

.detail-section-title {
  margin-bottom: 0.875rem;
  color: var(--color-primary);
  font-size: 1.125rem;
  line-height: 1.4;
}

.detail-description,
#detailEligibility,
#detailDeadlineNotes {
  color: var(--color-text-muted);
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.detail-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.detail-fact {
  min-width: 0;
  padding: 0.875rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
}

.detail-fact dt {
  margin-bottom: 0.375rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  font-weight: 700;
}

.detail-fact dd {
  margin: 0;
  color: var(--color-text-main);
  font-size: 0.9375rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.detail-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.detail-deadline-section {
  background-color: #fffdf5;
}

.detail-deadline-value {
  color: var(--color-text-main);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.detail-deadline-date {
  direction: ltr;
  unicode-bidi: isolate;
}

.detail-deadline-status {
  color: var(--color-text-muted);
  font-weight: 600;
}

.detail-note {
  margin-top: 1rem;
  padding: 0.875rem;
  background-color: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
  border-radius: var(--radius-md);
  color: var(--color-warning-text);
}

.detail-note strong {
  display: block;
  margin-bottom: 0.375rem;
}

.detail-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.detail-actions .btn {
  width: 100%;
  overflow-wrap: anywhere;
}

.detail-verification {
  margin-top: 1rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

@media (min-width: 600px) {
  .detail-header,
  .detail-section {
    padding: 1.5rem;
  }

  .detail-favorite-button {
    width: auto;
  }

  .detail-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .detail-actions .btn {
    width: auto;
  }
}

@media (min-width: 900px) {
  .detail-header,
  .detail-section {
    padding: 1.75rem 2rem;
  }
}