/* ============================================
   MOON COVERAGE
   
   Table of Contents:
   1. Custom Properties
   2. Reset & Base
   3. Utilities
   4. Layout
   5. Header
   6. Hero
   7. Sections
   8. Missions
   9. Timeline
   10. Companies
   11. Updates
   12. Footer
   13. Responsive
   14. Accessibility
   ============================================ */

/* ===========================================
   1. CUSTOM PROPERTIES
   =========================================== */

@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:wght@400;500;600&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* 
   * Base font size: 100% = 16px
   * Adjust this single value to scale all typography
   */
  --base-font-size: 100%;
  
  /* 
   * Type Scale (rem-based)
   * All sizes relative to base, easily adjustable
   */
  --text-xs: 0.8125rem;   /* 13px - body small */
  --text-sm: 0.875rem;    /* 14px - body small */
  --text-base: 1rem;      /* 16px - body */
  --text-md: 1.0625rem;   /* 17px - body emphasis */
  --text-lg: 1.125rem;    /* 18px - body large */
  --text-xl: 1.1875rem;   /* 19px - lead text */
  --text-2xl: 1.625rem;   /* 26px - heading small */
  --text-3xl: 2rem;       /* 32px - heading */
  --text-4xl: 3.5rem;     /* 56px - display */
  
  /* Font Families */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', 'SF Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Font Weights */
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  
  /* Line Heights */
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.5;
  --leading-relaxed: 1.6;
  
  /* Letter Spacing */
  --tracking-tight: -0.03em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;
  
  /* Colors - Monochromatic */
  --color-black: #000000;
  --color-surface-1: #0a0a0a;
  --color-surface-2: #111111;
  --color-surface-3: #1a1a1a;
  --color-border: #222222;
  --color-border-subtle: #1a1a1a;
  --color-text-muted: #444444;
  --color-text-subtle: #666666;
  --color-text: #999999;
  --color-text-strong: #cccccc;
  --color-white: #ffffff;
  
  /* Accent */
  --color-accent: #00d4ff;
  --color-accent-dim: rgba(0, 212, 255, 0.15);
  
  /* Status Colors */
  --color-success: #00cc88;
  --color-info: #00d4ff;
  --color-warning: #8888ff;
  --color-danger: #ff4444;
  
  /* Spacing Scale (rem-based) */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.5rem;    /* 24px */
  --space-6: 2rem;      /* 32px */
  --space-7: 3rem;      /* 48px */
  --space-8: 4rem;      /* 64px */
  --space-9: 6rem;      /* 96px */
  --space-10: 8rem;     /* 128px */
  
  /* Layout */
  --max-width: 75rem;   /* 1200px */
  --header-height: 3.5rem;
  
  /* Borders */
  --radius-sm: 0.125rem;
  --radius-md: 0.25rem;
  --radius-lg: 0.5rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
}

/* ===========================================
   2. RESET & BASE
   =========================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--base-font-size);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-black);
  min-height: 100vh;
}

::selection {
  background-color: var(--color-accent);
  color: var(--color-black);
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

/* ===========================================
   3. UTILITIES
   =========================================== */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===========================================
   4. LAYOUT
   =========================================== */

main {
  padding-top: var(--header-height);
}

.section {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--space-9) var(--space-5);
  border-top: 1px solid var(--color-border-subtle);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.section-title {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
}

/* ===========================================
   5. HEADER
   =========================================== */

.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(1.25rem);
  -webkit-backdrop-filter: blur(1.25rem);
  border-bottom: 1px solid var(--color-border-subtle);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.logo {
  font-family: var(--font-mono);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
}

.main-nav {
  display: flex;
  gap: var(--space-1);
}

.nav-link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-normal);
  color: var(--color-text-subtle);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-white);
}

.nav-link.active {
  color: var(--color-white);
}

/* ===========================================
   6. HERO
   =========================================== */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 65vh;
  background-color: var(--color-black);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  left: auto;
  width: 60%;
  background: url('../img/header-bg.jpg') center right / cover no-repeat;
  opacity: 0.9;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  left: auto;
  width: 70%;
  background: linear-gradient(to right, var(--color-black) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding: var(--space-8) var(--space-5);
}

.hero-content > * {
  max-width: 35rem;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-4);
}

.hero-title {
  font-size: clamp(var(--text-3xl), 5.5vw, var(--text-4xl));
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-5);
}

.hero-description {
  font-size: var(--text-xl);
  font-weight: var(--weight-normal);
  color: var(--color-text);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-8);
}

.hero-stats {
  display: flex;
  gap: var(--space-8);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-normal);
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

/* ===========================================
   7. SECTION CONTROLS & FILTERS
   =========================================== */

.section-controls {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* View Toggle */
.view-toggle {
  display: flex;
  gap: 2px;
  padding: 2px;
  background-color: var(--color-surface-2);
  border-radius: var(--radius-md);
}

.view-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  color: var(--color-text-muted);
  background-color: transparent;
  border: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.view-btn:hover,
.view-btn:focus {
  color: var(--color-text);
}

.view-btn.active,
.view-btn[aria-pressed="true"] {
  color: var(--color-white);
  background-color: var(--color-surface-3);
}

/* Filter Controls */
.filter-controls {
  display: flex;
  gap: 2px;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-normal);
  color: var(--color-text-muted);
  background-color: transparent;
  border: none;
  padding: var(--space-2) var(--space-3);
  transition: color var(--transition-fast);
}

.filter-btn:hover,
.filter-btn:focus {
  color: var(--color-text);
}

.filter-btn.active,
.filter-btn[aria-pressed="true"] {
  color: var(--color-white);
}

/* ===========================================
   8. MISSIONS
   =========================================== */

.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(22.5rem, 1fr));
  gap: 1px;
  background-color: var(--color-border-subtle);
  border: 1px solid var(--color-border-subtle);
}

.mission-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-5);
  background-color: var(--color-surface-1);
  transition: background-color var(--transition-fast);
}

.mission-card:hover,
.mission-card:focus-within {
  background-color: var(--color-surface-2);
}

.mission-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.mission-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-medium);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
}

.mission-status {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-normal);
  padding: 0.1875rem 0.375rem;
  border-radius: var(--radius-sm);
}

.mission-status.completed {
  color: var(--color-success);
  background-color: rgba(0, 204, 136, 0.12);
}

.mission-status.upcoming {
  color: var(--color-info);
  background-color: var(--color-accent-dim);
}

.mission-status.in-development {
  color: var(--color-warning);
  background-color: rgba(136, 136, 255, 0.12);
}

.mission-status.cancelled {
  color: var(--color-danger);
  background-color: rgba(255, 68, 68, 0.12);
}

.mission-company {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
}

.company-dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: var(--radius-sm);
  background-color: var(--company-color, var(--color-text-muted));
}

.mission-description {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.mission-meta {
  display: flex;
  gap: var(--space-6);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meta-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.meta-value {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-strong);
}

/* ===========================================
   9. TIMELINE
   =========================================== */

.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* Year Groups */
.timeline-year-group {
  display: flex;
  flex-direction: column;
}

.timeline-year-header {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
  z-index: 10;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-3);
  margin-bottom: var(--space-5);
  background-color: var(--color-black);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
}

.timeline-year-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--color-border), transparent);
}

.timeline-year-count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Timeline Grid */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
  gap: var(--space-4);
}

/* Timeline Card */
.timeline-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface-1);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  background-color: var(--color-surface-2);
  border-color: var(--color-border);
  transform: translateY(-2px);
}

.timeline-card-accent {
  height: 3px;
  background-color: var(--company-color, var(--color-accent));
}

.timeline-card-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
}

.timeline-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.timeline-card-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 3.5rem;
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-surface-3);
  border-radius: var(--radius-sm);
}

.timeline-card-month {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.timeline-card-day {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  line-height: 1.2;
}

.timeline-card-info {
  flex: 1;
  min-width: 0;
}

.timeline-card-title {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-1);
}

.timeline-card-company {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
}

.timeline-company-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--company-color, var(--color-text-muted));
}

.timeline-card-description {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: var(--leading-normal);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.timeline-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  margin-top: auto;
  border-top: 1px solid var(--color-border-subtle);
}

.timeline-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.timeline-card-type {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.timeline-card-crew {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

.timeline-card-crew svg {
  width: 14px;
  height: 14px;
}

.timeline-card-status {
  flex-shrink: 0;
}

/* Timeline Status Badge (reuse mission-status styles) */
.timeline-card .mission-status {
  font-size: 0.6875rem;
}

/* Outcome Indicator */
.timeline-card-outcome {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  margin-top: var(--space-1);
  background-color: var(--color-surface-3);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--color-text);
  line-height: var(--leading-snug);
}

.timeline-card-outcome::before {
  content: '';
  flex-shrink: 0;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--outcome-color, var(--color-text-subtle));
}

.timeline-card-outcome.success::before {
  background-color: var(--color-success);
}

.timeline-card-outcome.partial::before {
  background-color: var(--color-warning);
}

.timeline-card-outcome.failure::before {
  background-color: var(--color-danger);
}

/* ===========================================
   10. COMPANIES
   =========================================== */

.companies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17.5rem, 1fr));
  gap: 1px;
  background-color: var(--color-border-subtle);
  border: 1px solid var(--color-border-subtle);
}

.company-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background-color: var(--color-surface-1);
  transition: background-color var(--transition-fast);
}

.company-card:hover,
.company-card:focus-within {
  background-color: var(--color-surface-2);
}

.company-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.company-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-white);
  border-radius: var(--radius-md);
}

.company-name {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--color-white);
}

.company-role {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.company-description {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.company-programs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: auto;
  padding-top: var(--space-3);
}

.program-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
  background-color: var(--color-surface-3);
  padding: 0.1875rem 0.375rem;
  border-radius: var(--radius-sm);
}

/* ===========================================
   11. UPDATES
   =========================================== */

.updates-list {
  display: flex;
  flex-direction: column;
}

.update-item {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: var(--space-5);
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--color-border-subtle);
}

.update-item:last-child {
  border-bottom: none;
}

.update-date-block {
  display: flex;
  flex-direction: column;
  font-family: var(--font-mono);
  color: var(--color-text-subtle);
}

.update-month,
.update-year {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.update-day {
  font-size: var(--text-2xl);
  font-weight: var(--weight-semibold);
  color: var(--color-text-strong);
  line-height: 1;
}

.update-content h3 {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.update-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.update-category {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-normal);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
}

.update-category.launch {
  color: var(--color-info);
  background-color: var(--color-accent-dim);
}

.update-category.milestone {
  color: var(--color-warning);
  background-color: rgba(136, 136, 255, 0.12);
}

.update-category.landing {
  color: var(--color-success);
  background-color: rgba(0, 204, 136, 0.12);
}

.update-category.cancellation {
  color: var(--color-danger);
  background-color: rgba(255, 68, 68, 0.12);
}

.update-category.update {
  color: var(--color-text);
  background-color: var(--color-surface-3);
}

.update-company {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.update-text {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.update-source {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.update-source:hover {
  color: var(--color-text);
}

.update-source svg {
  transition: transform var(--transition-fast);
}

.update-source:hover svg {
  transform: translate(2px, -2px);
}

/* Company Website Link */
.company-website {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-subtle);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.company-website:hover {
  color: var(--color-text);
}

.company-website svg {
  transition: transform var(--transition-fast);
}

.company-website:hover svg {
  transform: translate(2px, -2px);
}

/* ===========================================
   12. FOOTER
   =========================================== */

.site-footer {
  margin-top: var(--space-9);
  padding: var(--space-7) var(--space-5);
  border-top: 1px solid var(--color-border-subtle);
}

.footer-content {
  max-width: var(--max-width);
  margin-inline: auto;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-subtle);
  margin-bottom: var(--space-3);
}

.footer-note {
  max-width: 35rem;
  margin-inline: auto;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.footer-copyright {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===========================================
   13. RESPONSIVE
   =========================================== */

@media (max-width: 48rem) {
  .header-content {
    padding-inline: var(--space-4);
  }
  
  .main-nav {
    display: none;
  }
  
  .hero {
    min-height: 70vh;
  }
  
  .hero::before {
    width: 100%;
    opacity: 0.4;
  }
  
  .hero::after {
    width: 100%;
    background: linear-gradient(to right, var(--color-black) 0%, rgba(0, 0, 0, 0.7) 100%);
  }
  
  .hero-content {
    padding: var(--space-8) var(--space-4);
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--space-5);
  }
  
  .section {
    padding: var(--space-7) var(--space-4);
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .section-controls {
    flex-wrap: wrap;
    gap: var(--space-3);
  }
  
  .mission-grid,
  .companies-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-year-header {
    position: relative;
    top: 0;
  }
  
  .timeline-card-description {
    -webkit-line-clamp: 3;
    line-clamp: 3;
  }
  
  .update-item {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  
  .update-date-block {
    flex-direction: row;
    align-items: baseline;
    gap: var(--space-2);
  }
}

/* ===========================================
   14. ACCESSIBILITY
   =========================================== */

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-black);
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* Focus States */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Remove focus outline from sections targeted by anchor links */
.section:focus,
.section:focus-visible {
  outline: none;
}

/* Reduced Motion */
@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;
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --color-border: #444444;
    --color-border-subtle: #333333;
    --color-text: #cccccc;
    --color-text-subtle: #aaaaaa;
  }
}