/* Projects Page Styles - Using Shared Design Tokens */

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

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-template-rows: auto 1fr auto;
  gap: var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  align-content: start;
}

/* Header */
.site-header {
  grid-column: 1 / -1;
  border-bottom: 1px solid var(--color-border-subtle);
  padding: var(--spacing-lg) var(--spacing-xl);
  align-self: start;
}

.site-nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  text-decoration: none;
}

.site-title:hover {
  text-decoration: none;
  color: var(--color-text-link);
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-base);
}

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

/* Main Content */
.main {
  grid-column: 1 / -1;
  padding: var(--spacing-2xl) 0;
  display: grid;
  grid-template-columns: subgrid;
  align-self: start;
}

/* Search */
.search-input {
  grid-column: 3 / 8;
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family-sans);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: none;
  border-bottom: 1px solid var(--color-border-default);
  margin-bottom: var(--spacing-lg);
  transition: border-color var(--transition-base);
}

.search-input:focus {
  outline: none;
  border-bottom-color: var(--color-text-link);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-results-count {
  grid-column: 3 / 8;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
}

.no-results {
  grid-column: 3 / 8;
  padding: var(--spacing-3xl) 0;
  text-align: center;
  color: var(--color-text-secondary);
}

/* Project Card */
.project-card {
  grid-column: 3 / 8;
  padding: var(--spacing-xl) 0;
}

.project-card:not(:last-child) {
  border-bottom: 1px solid var(--color-border-subtle);
}

.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.card-header {
  margin-bottom: var(--spacing-md);
}

.project-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-link);
  margin-bottom: var(--spacing-sm);
}

.card-link:hover .project-title {
  text-decoration: underline;
}

.badges {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stage-badge {
  background-color: var(--color-status-neutral);
  color: white;
}

.stage-active,
.stage-maintained {
  background-color: var(--color-status-success);
  color: white;
}

.stage-wip {
  background-color: var(--color-status-info);
  color: white;
}

.stage-planned {
  background-color: var(--color-status-neutral);
  color: white;
}

.stage-archived {
  background-color: var(--color-status-warning);
  color: white;
}

.stage-shelved {
  background-color: var(--color-status-neutral);
  color: white;
}

.contributor-badge {
  background-color: var(--color-status-purple);
  color: white;
}

.project-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

/* Tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.tag {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.tag:not(:last-child)::after {
  content: " · ";
  margin: 0 var(--spacing-xs);
  color: var(--color-text-tertiary);
}

/* Project URLs */
.project-urls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.url-link {
  color: var(--color-text-link);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-base);
}

.url-link:hover {
  text-decoration: underline;
}

/* Breadcrumb */
.breadcrumb {
  grid-column: 3 / 8;
  margin-bottom: var(--spacing-xl);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.breadcrumb a {
  color: var(--color-text-link);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Project Detail */
.project-detail {
  grid-column: 3 / 8;
  min-width: 0;
}

.detail-header {
  margin-bottom: var(--spacing-3xl);
}

.detail-header .project-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-lg);
}

.detail-header .project-description {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-lg);
}

/* Table of Contents */
.toc-mobile {
  grid-column: 3 / 8;
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border-subtle);
}

.toc-mobile summary {
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  list-style: none;
  user-select: none;
  padding: var(--spacing-sm) 0;
}

.toc-mobile summary::-webkit-details-marker {
  display: none;
}

.toc-mobile summary::before {
  content: "▶ ";
  display: inline-block;
  transition: transform var(--transition-base);
}

.toc-mobile[open] summary::before {
  transform: rotate(90deg);
}

.toc-desktop {
  display: none;
}

.toc-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.toc-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
  padding: var(--spacing-xs) 0;
}

.toc-link:hover {
  color: var(--color-text-link);
}

.toc-link.toc-active {
  color: var(--color-text-link);
  font-weight: var(--font-weight-medium);
}

.toc-level-3 {
  padding-left: var(--spacing-md);
  font-size: var(--font-size-xs);
}

/* Desktop TOC - sticky sidebar */
@media (min-width: 1024px) {
  .toc-mobile {
    display: none;
  }

  .toc-desktop {
    display: block;
    grid-column: 8 / 10;
    grid-row: 2;
    position: sticky;
    top: var(--spacing-4xl);
    max-height: calc(100vh - var(--spacing-4xl));
    overflow-y: auto;
  }

  .toc-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
  }

  .toc-desktop .toc-nav {
    margin-top: 0;
  }
}

/* README Content */
.readme-content {
  line-height: var(--line-height-relaxed);
}

.readme-content h1,
.readme-content h2,
.readme-content h3 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
  font-weight: var(--font-weight-semibold);
}

.readme-content h1 {
  font-size: var(--font-size-2xl);
}

.readme-content h2 {
  font-size: var(--font-size-xl);
}

.readme-content h3 {
  font-size: var(--font-size-lg);
}

.readme-content p {
  margin-bottom: var(--spacing-lg);
}

.readme-content ul,
.readme-content ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.readme-content li {
  margin-bottom: var(--spacing-sm);
}

.readme-content code {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  background-color: var(--color-bg-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.readme-content pre {
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--spacing-lg);
}

.readme-content pre code {
  background: none;
  padding: 0;
}

.readme-content a {
  color: var(--color-text-link);
  text-decoration: underline;
}

.readme-content a:hover {
  text-decoration: none;
}

/* 404 Not Found / Error Page */
.not-found {
  grid-column: 3 / 8;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-4xl) var(--spacing-lg);
  min-height: 40vh;
}

.not-found h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.not-found p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-2xl);
  max-width: 400px;
}

.not-found a {
  color: var(--color-text-link);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

.not-found a:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  grid-column: 1 / -1;
  border-top: 1px solid var(--color-border-subtle);
  padding: var(--spacing-2xl) var(--spacing-xl);
  text-align: center;
  align-self: end;
}

.footer p {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

/* Focus styles for keyboard navigation accessibility */
*:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Responsive */
@media (max-width: 768px) {
  body {
    grid-template-columns: 1fr;
    padding: 0 var(--spacing-md);
  }

  .site-header {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .footer {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .main,
  .breadcrumb,
  .project-detail,
  .toc-mobile,
  .search-input,
  .search-results-count,
  .no-results,
  .not-found,
  .project-card {
    grid-column: 1 / -1;
  }

  .not-found h1 {
    font-size: var(--font-size-2xl);
  }

  .detail-header .project-title {
    font-size: var(--font-size-2xl);
  }
}