/* ==========================================================================
   SAAN (Society of Access Alumni Nepal) Design System
   Visual Identity: Clean, Human, Credible, Nepal-Focused, Impact-Driven
   Antislop Dials: ENERGY 2 / RHYTHM 2 / MOTION 1
   ========================================================================== */

:root {
  /* Color Palette (WCAG AA Verified) */
  --color-navy: #102A43;
  --color-navy-light: #243B53;
  --color-blue: #1565C0;
  --color-blue-hover: #0D47A1;
  --color-blue-tint: #EBF8FF;
  --color-blue-border: #90CDF4;
  --color-red: #D62828;
  --color-red-tint: #FFEEEE;
  --color-green: #2E7D5B;
  --color-green-tint: #E6F4EA;
  --color-bg: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-border: #D9E2EC;
  --color-border-light: #E9EEF3;
  --color-text: #172B4D;
  --color-text-muted: #486581;
  --color-text-on-dark: #FFFFFF;
  --color-text-muted-dark: #D9E2EC;

  /* Typography */
  --font-main: "Plus Jakarta Sans", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, Menlo, monospace;

  /* Spacing Scale (8px Grid) */
  --space-2: 4px;
  --space-4: 8px;
  --space-8: 16px;
  --space-12: 24px;
  --space-16: 32px;
  --space-24: 48px;
  --space-32: 64px;
  --space-40: 80px;
  --space-48: 96px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  /* Shadows (Subtle elevation only - no floating mush) */
  --shadow-sm: 0 1px 3px rgba(16, 42, 67, 0.08);
  --shadow-md: 0 4px 12px rgba(16, 42, 67, 0.08);
  --shadow-lg: 0 10px 24px rgba(16, 42, 67, 0.12);

  /* Layout */
  --container-max: 1200px;
  --header-height: 76px;
  --transition-speed: 0.18s;
}

/* Reset and Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

a:hover {
  color: var(--color-blue-hover);
  text-decoration: underline;
}

/* Keyboard Focus Standard (R-32) */
:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Skip to Main Content (Accessibility) */
.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  background: var(--color-navy);
  color: #FFFFFF;
  padding: 12px 20px;
  font-weight: 700;
  z-index: 99999;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: var(--space-40);
  padding-bottom: var(--space-40);
}

.section-sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-24);
}

.section-navy {
  background-color: var(--color-navy);
  color: var(--color-text-on-dark);
}

.section-surface {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.section-subtle {
  background-color: #F0F4F8;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-navy);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.section-navy h1,
.section-navy h2,
.section-navy h3,
.section-navy h4 {
  color: var(--color-text-on-dark);
}

h1 {
  font-size: clamp(2.2rem, 4vw, 3.25rem);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
}

h3 {
  font-size: 1.45rem;
}

h4 {
  font-size: 1.15rem;
}

p {
  color: var(--color-text);
  margin-bottom: var(--space-12);
}

p:last-child {
  margin-bottom: 0;
}

.text-saan-blue {
  color: var(--color-blue) !important;
}

.text-saan-red {
  color: var(--color-red) !important;
}

.lead {
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.section-navy .lead {
  color: var(--color-text-muted-dark);
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  margin-bottom: var(--space-8);
}

.section-navy .eyebrow {
  color: #63B3ED;
}

.section-header {
  margin-bottom: var(--space-32);
}

.section-header.text-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-top: var(--space-8);
}

/* Interactive Elements & Buttons (44px Minimum Tap Area, R-03, R-26) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 10px 22px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: background-color var(--transition-speed) ease,
              border-color var(--transition-speed) ease,
              box-shadow var(--transition-speed) ease;
}

.btn-primary {
  background-color: var(--color-blue);
  color: #FFFFFF !important;
  border-color: var(--color-blue);
}

.btn-primary:hover {
  background-color: var(--color-blue-hover);
  border-color: var(--color-blue-hover);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-navy) !important;
  border-color: var(--color-navy);
}

.btn-secondary:hover {
  background-color: var(--color-navy);
  color: #FFFFFF !important;
}

.btn-outline-white {
  background-color: transparent;
  color: #FFFFFF !important;
  border-color: #FFFFFF;
}

.btn-outline-white:hover {
  background-color: #FFFFFF;
  color: var(--color-navy) !important;
}

.btn-red {
  background-color: var(--color-red);
  color: #FFFFFF !important;
  border-color: var(--color-red);
}

.btn-red:hover {
  background-color: #B71C1C;
  border-color: #B71C1C;
}

.btn-sm {
  min-height: 38px;
  padding: 6px 16px;
  font-size: 0.85rem;
}

.btn-full {
  width: 100%;
}

/* Header & Sticky Navigation (R-24) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  min-height: 48px;
}

.brand-logo-img {
  height: 56px;
  width: 56px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-acronym {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-navy);
}

.brand-tagline {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

/* Photo Placeholders for Leadership */
.photo-placeholder-box {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px dashed var(--color-border);
  margin: 0 auto 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(16, 42, 67, 0.04);
}

.photo-placeholder-box svg {
  color: var(--color-blue);
  margin-bottom: 2px;
}

.photo-placeholder-box span {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  min-height: 44px;
  color: var(--color-navy);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.nav-link:hover {
  background-color: var(--color-border-light);
  color: var(--color-blue);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-blue);
  background-color: var(--color-blue-tint);
  font-weight: 700;
}

.header-cta-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Mobile Navigation Toggle (R-03) */
.nav-toggle-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  min-height: 44px;
  min-width: 44px;
  cursor: pointer;
  align-items: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 700;
  color: var(--color-navy);
}

.nav-toggle-btn:hover {
  background-color: var(--color-border-light);
}

.nav-toggle-icon {
  width: 22px;
  height: 18px;
  position: relative;
  display: inline-block;
}

.nav-toggle-icon span {
  position: absolute;
  height: 2.5px;
  width: 100%;
  background-color: var(--color-navy);
  border-radius: 2px;
  left: 0;
  transition: all 0.2s ease;
}

.nav-toggle-icon span:nth-child(1) { top: 0; }
.nav-toggle-icon span:nth-child(2) { top: 7px; }
.nav-toggle-icon span:nth-child(3) { top: 14px; }

.nav-toggle-btn[aria-expanded="true"] .nav-toggle-icon span:nth-child(1) {
  transform: rotate(45deg);
  top: 7px;
}
.nav-toggle-btn[aria-expanded="true"] .nav-toggle-icon span:nth-child(2) {
  opacity: 0;
}
.nav-toggle-btn[aria-expanded="true"] .nav-toggle-icon span:nth-child(3) {
  transform: rotate(-45deg);
  top: 7px;
}

/* Mobile Drawer */
.mobile-nav-drawer {
  display: none;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--color-border);
  padding: 16px 24px 24px;
  box-shadow: var(--shadow-md);
}

.mobile-nav-drawer.open {
  display: block;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.mobile-nav-links .nav-link {
  width: 100%;
  padding: 12px 14px;
  font-size: 1rem;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F4F8 100%);
  padding-top: var(--space-24);
  padding-bottom: var(--space-48);
  border-bottom: 1px solid var(--color-border-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-32);
  align-items: center;
}

.hero-content h1 {
  margin-bottom: var(--space-12);
  color: var(--color-navy);
}

.hero-content .lead {
  margin-bottom: var(--space-24);
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.hero-illustration {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-navy);
  color: #FFFFFF;
}

.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-red-tint);
  color: var(--color-red);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-12);
}

/* Statistics Section (R-17, R-38: Honest Placeholders) */
.stats-banner {
  background-color: var(--color-navy);
  color: #FFFFFF;
  padding: var(--space-32) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  text-align: center;
}

.stat-item {
  padding: 16px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-size: clamp(1.85rem, 3vw, 2.5rem);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #D9E2EC;
}

.stats-notice {
  text-align: center;
  font-size: 0.8rem;
  color: #BAC7D5;
  margin-top: 20px;
}

/* Cards Grid Systems */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* Content Cards (R-14: Varied & Structured) */
.card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-speed) ease;
}

.card:hover {
  border-color: var(--color-blue-border);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background-color: var(--color-blue-tint);
  color: var(--color-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 10px;
  color: var(--color-navy);
}

.card-body {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}

.card-footer {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border-light);
}

.card-link {
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-blue);
}

/* Program Card With Media Header */
.program-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.program-card-media {
  height: 180px;
  background-color: var(--color-navy);
  position: relative;
  overflow: hidden;
}

.program-card-media svg,
.program-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-category-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(16, 42, 67, 0.88);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.program-card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* Event Cards */
.event-card {
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.event-date-badge {
  background-color: var(--color-blue-tint);
  color: var(--color-blue);
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.event-location-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Editorial Story Showcase (R-05 Varied Rhythm) */
.story-featured {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 32px;
}

.story-featured-media {
  background: var(--color-navy);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.story-featured-content {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.story-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* Nepal Map Network Explorer */
.map-explorer-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 32px;
  align-items: start;
}

.map-wrapper {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.province-info-panel {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.province-quick-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.province-pill-btn {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  min-height: 44px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-navy);
  cursor: pointer;
  transition: all var(--transition-speed) ease;
}

.province-pill-btn:hover {
  background-color: var(--color-border-light);
  border-color: var(--color-blue);
}

.province-pill-btn.active {
  background-color: var(--color-blue);
  color: #FFFFFF;
  border-color: var(--color-blue);
}

/* Map SVG Hover & Highlight States */
.nepal-vector-map {
  width: 100%;
  height: auto;
  display: block;
}

.nepal-vector-map .network-links,
.nepal-vector-map .province-labels,
.nepal-vector-map .province-labels text {
  pointer-events: none !important;
  user-select: none;
}

.province-path {
  cursor: pointer;
  transition: fill var(--transition-speed) ease, stroke var(--transition-speed) ease;
}

.province-path:hover {
  fill: #BFDBFE !important;
  stroke: #1D4ED8 !important;
  stroke-width: 2.5 !important;
}

.province-path.active {
  fill: #BFDBFE !important;
  stroke: #1D4ED8 !important;
  stroke-width: 3.5 !important;
}

.map-node {
  cursor: pointer;
}

/* Filter Controls System (Programs, Events, Resources) */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
  align-items: center;
}

.filter-btn {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  min-height: 44px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-navy);
  cursor: pointer;
  transition: all var(--transition-speed) ease;
}

.filter-btn:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

.filter-btn.active {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: #FFFFFF;
}

/* UI States (R-27: Empty & Feedback States) */
.empty-state-card {
  text-align: center;
  padding: 48px 24px;
  background: #FFFFFF;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  margin: 20px 0;
}

.empty-state-card p {
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 8px auto 20px;
}

/* Opportunities & Resource Cards */
.resource-card {
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.resource-badge {
  align-self: flex-start;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-navy);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Timeline System (About Page) */
.timeline-list {
  position: relative;
  padding-left: 32px;
  margin-top: 32px;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-entry {
  position: relative;
  margin-bottom: 36px;
}

.timeline-entry:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: #FFFFFF;
  border: 3px solid var(--color-blue);
}

.timeline-year {
  font-weight: 800;
  color: var(--color-blue);
  font-size: 1rem;
  margin-bottom: 4px;
}

/* Forms System (Contact & Volunteer, R-26) */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-speed) ease;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-blue);
  outline: 2px solid var(--color-blue);
  outline-offset: 1px;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.form-error-msg {
  display: none;
  font-size: 0.82rem;
  color: var(--color-red);
  font-weight: 600;
  margin-top: 4px;
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea {
  border-color: var(--color-red);
}

.form-group.has-error .form-error-msg {
  display: block;
}

/* Notification & Alert Boxes */
.alert {
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  font-size: 0.92rem;
  line-height: 1.5;
  border: 1px solid transparent;
}

.alert-success {
  background-color: var(--color-green-tint);
  border-color: #A3D9C9;
  color: #1A5336;
}

.alert-info {
  background-color: var(--color-blue-tint);
  border-color: var(--color-blue-border);
  color: #0D47A1;
}

/* Modal Dialog (R-26, R-32 Keyboard Operable with Escape) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(16, 42, 67, 0.72);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10000;
}

.modal-overlay.open {
  display: flex;
}

.modal-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 32px;
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  background: transparent;
  border: none;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  border-radius: var(--radius-sm);
}

.modal-close-btn:hover {
  color: var(--color-navy);
  background-color: var(--color-border-light);
}

/* Footer (Comprehensive & Clean, R-05, R-24) */
.site-footer {
  background-color: var(--color-navy);
  color: var(--color-text-on-dark);
  padding-top: var(--space-48);
  padding-bottom: var(--space-24);
  border-top: 3px solid var(--color-blue);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: var(--space-32);
}

.footer-brand h3 {
  color: #FFFFFF;
  margin-bottom: 8px;
  font-size: 1.4rem;
}

.footer-tagline {
  color: #BAC7D5;
  font-size: 0.9rem;
  margin-bottom: 16px;
  line-height: 1.5;
}

.footer-col-title {
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  color: #D9E2EC;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  transition: color var(--transition-speed) ease;
}

.footer-link:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.social-media-bar {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all var(--transition-speed) ease;
}

.social-link:hover {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: #FFFFFF;
  text-decoration: none;
}

.footer-bottom {
  padding-top: var(--space-24);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.85rem;
  color: #BAC7D5;
}

.footer-legal-links {
  display: flex;
  gap: 20px;
}

.footer-legal-links a {
  color: #BAC7D5;
}

.footer-legal-links a:hover {
  color: #FFFFFF;
}

/* Breadcrumbs (R-24) */
.breadcrumbs {
  padding: 16px 0;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: #CBD2D9;
}

.breadcrumbs a {
  color: var(--color-navy);
  font-weight: 600;
}

.breadcrumbs [aria-current="page"] {
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Responsive Media Queries (R-03: Mobile Layout Reflow) */
@media (max-width: 992px) {
  .nav-desktop {
    display: none;
  }

  .nav-toggle-btn {
    display: inline-flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .map-explorer-layout {
    grid-template-columns: 1fr;
  }

  .story-featured {
    grid-template-columns: 1fr;
  }

  .story-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (max-width: 640px) {
  :root {
    --space-40: 48px;
    --space-48: 56px;
    --space-32: 36px;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .grid-2,
  .grid-3,
  .grid-4,
  .story-card-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .filter-bar {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
  }

  .filter-btn {
    white-space: nowrap;
  }
}

/* Reduced Motion Preference (WCAG 2.1) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}