/* ============================================
   fivefourthree.org — CSS Foundation
   "the countdown to accountability"
   ============================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* --- Custom Properties --- */
:root {
  /* Palette */
  --bg-deep:        #1a1a2e;
  --bg-surface:     #1f1f35;
  --bg-card:        #24243d;
  --accent-amber:   #c4956a;
  --accent-teal:    #2a7a7a;
  --accent-teal-hover: #35908f;
  --text-cream:     #e8ddd0;
  --text-muted:     #8a7a6a;
  --text-heading:   #f0e6d8;
  --danger-red:     #c43a3a;
  --border-subtle:  rgba(196, 149, 106, 0.15);
  --border-medium:  rgba(196, 149, 106, 0.25);

  /* Typography */
  --font-heading:   'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-body:      Georgia, Palatino, 'Palatino Linotype', serif;
  --font-data:      'IBM Plex Mono', 'Courier New', monospace;

  /* Spacing */
  --space-xs:   0.5rem;
  --space-sm:   1rem;
  --space-md:   1.5rem;
  --space-lg:   2.5rem;
  --space-xl:   4rem;
  --space-2xl:  6rem;

  /* Layout */
  --max-width:      72rem;
  --max-width-text: 48rem;
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-deep);
  color: var(--text-cream);
  line-height: 1.7;
  min-height: 100vh;
}

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  color: var(--text-heading);
  font-weight: 500;
  line-height: 1.25;
}

h1 {
  font-size: 3rem;
  letter-spacing: 0.02em;
}

h2 {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-sm);
}

a {
  color: var(--accent-amber);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--text-heading);
}

strong {
  color: var(--text-heading);
  font-weight: 600;
}

blockquote {
  border-left: 3px solid var(--accent-amber);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--text-muted);
  font-size: 1.1rem;
}

hr {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-xl) 0;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.text-container {
  max-width: var(--max-width-text);
  margin: 0 auto;
}

section {
  padding: var(--space-xl) 0;
}

/* --- Navigation --- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent-amber);
  letter-spacing: 0.15em;
}

.nav-logo:hover {
  color: var(--text-heading);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
  text-transform: lowercase;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-amber);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent-amber);
  margin: 5px 0;
  transition: all 0.3s ease;
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  position: relative;
}

.hero-countdown {
  font-family: var(--font-heading);
  font-size: 4.5rem;
  font-weight: 300;
  color: var(--accent-amber);
  letter-spacing: 0.3em;
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-tagline {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xl);
  text-transform: lowercase;
}

.hero-description {
  max-width: 38rem;
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-cream);
  margin-bottom: var(--space-lg);
  opacity: 0.9;
}

.hero-call {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--text-heading);
  font-style: italic;
  margin-bottom: var(--space-xl);
}

/* --- Buttons --- */
.btn-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  border-radius: 3px;
  transition: all 0.25s ease;
  cursor: pointer;
  text-align: center;
  border: none;
}

.btn-primary {
  background: var(--accent-amber);
  color: var(--bg-deep);
}

.btn-primary:hover {
  background: var(--text-heading);
  color: var(--bg-deep);
}

.btn-secondary {
  background: transparent;
  color: var(--accent-amber);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  border-color: var(--accent-amber);
  color: var(--text-heading);
}

.btn-teal {
  background: var(--accent-teal);
  color: var(--text-cream);
}

.btn-teal:hover {
  background: var(--accent-teal-hover);
}

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: var(--space-lg);
  transition: border-color 0.25s ease;
}

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

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: var(--space-md);
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-header h2 {
  color: var(--accent-amber);
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 36rem;
  margin: var(--space-sm) auto 0;
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding: var(--space-lg) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-medium);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: var(--space-md);
}

.timeline-item:nth-child(odd) {
  padding-right: var(--space-xl);
  text-align: right;
}

.timeline-item:nth-child(even) {
  margin-left: 50%;
  padding-left: var(--space-xl);
}

.timeline-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  background: var(--accent-amber);
  border-radius: 50%;
  top: var(--space-lg);
  border: 3px solid var(--bg-deep);
}

.timeline-item:nth-child(odd) .timeline-dot {
  right: -7px;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -7px;
}

.timeline-year {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--accent-teal);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.05em;
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--text-heading);
  margin-bottom: var(--space-xs);
}

.timeline-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Operation tags --- */
.op-tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  margin: 0.2rem;
  letter-spacing: 0.03em;
}

.op-british  { background: rgba(196, 149, 106, 0.2); color: var(--accent-amber); }
.op-french   { background: rgba(42, 122, 122, 0.2); color: var(--accent-teal); }
.op-chinese  { background: rgba(106, 61, 122, 0.2); color: #a67ab8; }

/* --- Forms --- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--text-heading);
  margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--bg-surface);
  color: var(--text-cream);
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-amber);
}

.form-group textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--accent-amber);
  letter-spacing: 0.2em;
  margin-bottom: var(--space-sm);
}

.footer-description {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 32rem;
  margin: 0 auto var(--space-md);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  list-style: none;
  margin-bottom: var(--space-md);
}

.footer-links a {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--accent-amber);
}

.footer-badge {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.6;
}

/* --- Page Header (non-home pages) --- */
.page-header {
  padding: calc(var(--space-2xl) + 3rem) 0 var(--space-xl);
  text-align: center;
}

.page-header h1 {
  color: var(--accent-amber);
  margin-bottom: var(--space-sm);
}

.page-header .lead {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 36rem;
  margin: 0 auto;
}

/* --- Content Sections --- */
.content-section {
  padding: var(--space-xl) 0;
}

.content-section + .content-section {
  border-top: 1px solid var(--border-subtle);
}

/* --- Stat boxes --- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.stat-box {
  text-align: center;
  padding: var(--space-md);
}

.stat-number {
  font-family: var(--font-data);
  font-size: 2.5rem;
  font-weight: 500;
  color: var(--accent-amber);
  display: block;
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* --- Template letter --- */
.letter-template {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: var(--space-lg);
  font-size: 0.9rem;
  line-height: 1.8;
  white-space: pre-wrap;
  font-family: var(--font-body);
  position: relative;
}

.letter-template .placeholder {
  color: var(--accent-teal);
  font-style: italic;
}

.copy-btn {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  padding: 0.4rem 0.8rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  background: var(--accent-teal);
  color: var(--text-cream);
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.copy-btn:hover {
  background: var(--accent-teal-hover);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  html {
    font-size: 16px;
  }

  .hero-countdown {
    font-size: 2.8rem;
    letter-spacing: 0.2em;
  }

  .hero-tagline {
    font-size: 1.1rem;
  }

  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.6rem; }

  /* Mobile nav */
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(26, 26, 46, 0.98);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
    gap: 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: var(--space-xs) 0;
  }

  /* Mobile timeline */
  .timeline::before {
    left: 1rem;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    width: 100%;
    margin-left: 0;
    padding-left: 2.5rem;
    padding-right: 0;
    text-align: left;
  }

  .timeline-dot,
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 0.35rem;
    right: auto;
  }

  /* Mobile buttons */
  .btn-group {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 20rem;
  }

  /* Mobile cards */
  .card-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 480px) {
  .hero-countdown {
    font-size: 2.2rem;
  }

  .stat-row {
    grid-template-columns: 1fr;
  }
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(1.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.8s ease forwards;
}

.fade-in-delay-1 { animation-delay: 0.2s; opacity: 0; }
.fade-in-delay-2 { animation-delay: 0.4s; opacity: 0; }
.fade-in-delay-3 { animation-delay: 0.6s; opacity: 0; }
.fade-in-delay-4 { animation-delay: 0.8s; opacity: 0; }