:root {
  /* Background - clean white/off-white */
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-surface-alt: #f0f0f0;
  
  /* Text - black and grays */
  --color-text: #1a1a1a;
  --color-text-muted: #666666;
  
  /* Accent colors - all black/gray */
  --color-primary: #1a1a1a;
  --color-secondary: #333333;
  --color-accent: #444444;
  
  /* Status - grayscale */
  --color-complete: #1a1a1a;
  --color-in-progress: #666666;
  --color-not-started: #aaaaaa;
  
  /* Borders - pencil gray */
  --color-border: #d0d0d0;
  --color-border-dark: #555555;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Architects Daughter', cursive, sans-serif;
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(0,0,0,0.02) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 20px 20px;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4 {
  font-family: 'Architects Daughter', cursive;
  font-weight: 400;
  margin-top: 0;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; margin-bottom: 1rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.4rem; }

a {
  color: var(--color-primary);
}

p {
  margin-top: 0;
}

/* Navigation */
.nav {
  background: var(--color-surface);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid var(--color-border-dark);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-family: 'Architects Daughter', cursive;
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-size: 1.1rem;
  padding: 0.25rem 0;
  border-bottom: 2px dashed transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Layout */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem;
}

.section {
  margin-bottom: 3rem;
}

.section-intro {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

/* Sketch Border */
.sketch-border {
  border: 2px solid var(--color-border-dark);
  border-radius: 8px 4px 12px 6px;
  box-shadow: 
    2px 2px 0 var(--color-border),
    4px 4px 0 rgba(0,0,0,0.05);
  background: var(--color-surface);
  padding: 1.5rem;
}

/* Progress Bar */
.progress-bar {
  background: var(--color-surface);
  border: 2px solid var(--color-border-dark);
  border-radius: 20px 15px 25px 18px;
  height: 28px;
  position: relative;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.progress-bar.large {
  height: 36px;
}

.progress-fill {
  background: linear-gradient(90deg, #333333, #555555);
  height: 100%;
  border-radius: 18px 12px 20px 15px;
  transition: width 0.3s ease;
}

.progress-label {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 600;
  font-size: 0.9rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.stat-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border-dark);
  border-radius: 10px 6px 14px 8px;
  padding: 1.25rem;
  text-align: center;
  box-shadow: 2px 2px 0 var(--color-border);
}

.stat-value {
  font-family: 'Architects Daughter', cursive;
  font-size: 2.5rem;
  font-weight: 400;
  color: var(--color-primary);
}

.stat-label {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* Phase Cards */
.phase-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.phase-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border-dark);
  border-radius: 8px 4px 12px 6px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 3px 3px 0 var(--color-border);
  transform: rotate(-0.2deg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.phase-card:nth-child(even) {
  transform: rotate(0.3deg);
}

.phase-card:hover {
  transform: rotate(0deg) translateY(-2px);
  box-shadow: 5px 5px 0 var(--color-border);
}

.phase-card--complete {
  border-left: 5px solid var(--color-complete);
}

.phase-card--in-progress {
  border-left: 5px solid var(--color-in-progress);
}

.phase-card--not-started {
  border-left: 5px solid var(--color-not-started);
}

.phase-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.phase-number {
  font-family: 'Architects Daughter', cursive;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

.phase-status {
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: 12px 8px 14px 10px;
  font-weight: 600;
  border: 1px dashed;
}

.phase-card--complete .phase-status {
  background: #e8e8e8;
  color: var(--color-complete);
  border-color: var(--color-complete);
}

.phase-card--in-progress .phase-status {
  background: #f0f0f0;
  color: var(--color-in-progress);
  border-color: var(--color-in-progress);
}

.phase-card--not-started .phase-status {
  background: #f5f5f5;
  color: var(--color-not-started);
  border-color: var(--color-not-started);
}

.phase-title {
  margin: 0.5rem 0;
}

.phase-description {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

/* Changelog */
.changelog-entry {
  margin-bottom: 2rem;
  padding-left: 1rem;
  border-left: 3px dashed var(--color-border-dark);
}

.changelog-date {
  font-family: 'Architects Daughter', cursive;
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.changelog-items {
  list-style: none;
  padding: 0;
  margin: 0;
}

.changelog-item {
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px 3px 8px 4px;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.changelog-marker {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.changelog-item--completed .changelog-marker {
  color: var(--color-complete);
}

.changelog-item--started .changelog-marker {
  color: var(--color-in-progress);
}

.changelog-content {
  flex: 1;
}

.changelog-content strong {
  display: block;
  margin-bottom: 0.25rem;
}

.changelog-notes {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0.25rem 0 0 0;
}

/* Task Lists */
.task-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.task-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--color-border);
}

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

.task-marker {
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.task-item--complete .task-marker {
  color: var(--color-complete);
}

.task-item--in-progress .task-marker {
  color: var(--color-in-progress);
}

.task-item--pending .task-marker {
  color: var(--color-not-started);
}

.sub-task {
  padding-left: 1rem;
  color: var(--color-text-muted);
}

/* Glossary */
.glossary-term {
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 6px 10px 4px 8px;
  transform: rotate(-0.15deg);
}

.glossary-term:nth-child(even) {
  transform: rotate(0.15deg);
}

.glossary-term-name {
  font-family: 'Architects Daughter', cursive;
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.glossary-term-def {
  color: var(--color-text-muted);
  margin: 0;
  padding-left: 1.5rem;
}

dl {
  margin: 0;
}

/* Quick Reference Grid */
.quick-ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.quick-ref-card h3 {
  margin-top: 0;
  color: var(--color-primary);
}

.quick-ref-card ul {
  margin-bottom: 0;
  padding-left: 0;
  list-style: none;
}

.quick-ref-card li {
  padding: 0.25rem 0;
  border-bottom: 1px dashed var(--color-border);
}

.quick-ref-card li:last-child {
  border-bottom: none;
}

/* Footer */
.footer {
  background: var(--color-surface);
  border-top: 3px dashed var(--color-border-dark);
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
}

.footer p {
  font-family: 'Architects Daughter', cursive;
  font-size: 1.25rem;
  margin: 0.25rem 0;
}

.footer-updated {
  color: var(--color-text-muted);
  font-size: 1rem !important;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }
  
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  
  .phase-cards {
    grid-template-columns: 1fr;
  }
  
  .container {
    padding: 1rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .quick-ref-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-value {
    font-size: 2rem;
  }
}