/* PolySkill — Dark theme design system */

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --text-primary: #f1f5f9;
  --text-secondary: #a1b0c6;
  --accent: #2dd4bf;
  --accent-hover: #5eead4;
  --verified: #34d399;
  --border: #1e293b;
  --danger: #f87171;

  /* Type badge colors */
  --type-prompt: #a78bfa;
  --type-tool: #60a5fa;
  --type-workflow: #fb923c;
  --type-composite: #f472b6;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
}

/* Focus indicators */
a:focus-visible,
.btn:focus-visible,
.btn-copy:focus-visible,
.input:focus-visible,
.select:focus-visible,
.skill-card:focus-visible,
.path-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* Hero section */
.hero {
  text-align: center;
  padding: 80px 0 48px;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Path cards (landing page) */
.path-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 800px;
  margin: 48px auto;
}

.path-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 32px;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
  display: block;
}

.path-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 24px rgba(45, 212, 191, 0.1);
  color: var(--text-primary);
}

.path-card-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.path-card h2 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.path-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Agent section */
.agent-section {
  max-width: 700px;
  margin: 0 auto;
  padding: 64px 0 80px;
}

.agent-section h2 {
  font-size: 1.8rem;
  margin-bottom: 32px;
  text-align: center;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.step-content h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Code blocks */
code, .code-block {
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
}

.code-block {
  position: relative;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 0.9rem;
  overflow-x: auto;
  color: var(--accent);
  margin-top: 8px;
  cursor: pointer;
}

.code-block-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  line-height: 0;
  opacity: 0;
  transition: opacity 0.2s, color 0.2s;
}

.code-block:hover .code-block-copy {
  opacity: 1;
}

.code-block-copy:hover {
  color: var(--accent);
}

.code-block-copy.copied {
  color: #22c55e;
  opacity: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

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

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

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-copy {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 10px 14px;
  min-height: 44px;
  font-size: 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.btn-copy:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Form controls */
.input, .select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
}

.input:focus, .select:focus {
  border-color: var(--accent);
}

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

.select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8'%3E%3Cpath d='M6 8.5L1 3.5h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
}

/* Toolbar (browse page) */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 24px;
}

.toolbar .input {
  flex: 1;
  min-width: 200px;
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.skill-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(45, 212, 191, 0.08);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.card-name {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  overflow-wrap: break-word;
}

.card-description {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  flex-wrap: wrap;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-prompt { background: rgba(167, 139, 250, 0.15); color: var(--type-prompt); }
.badge-tool { background: rgba(96, 165, 250, 0.15); color: var(--type-tool); }
.badge-workflow { background: rgba(251, 146, 60, 0.15); color: var(--type-workflow); }
.badge-composite { background: rgba(244, 114, 182, 0.15); color: var(--type-composite); }

.badge-verified {
  background: rgba(52, 211, 153, 0.15);
  color: var(--verified);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
  padding: 16px 0;
}

.pagination-info {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Skill detail page */
.skill-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 0 80px;
}

.skill-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
  overflow-wrap: break-word;
}

.skill-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.skill-description {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 32px;
}

.install-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
}

.install-command {
  font-family: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  font-size: 0.95rem;
  color: var(--accent);
}

.detail-section {
  margin-bottom: 32px;
}

.detail-section h2 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.keywords-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-pill {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 9999px;
  padding: 4px 14px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.tools-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tool-item {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
}

.tool-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.tool-description {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.instructions-block {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 20px;
  font-family: "SF Mono", "Fira Code", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-secondary);
  line-height: 1.6;
}

.info-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 20px;
  font-size: 0.9rem;
}

.info-label {
  color: var(--text-secondary);
}

.info-value {
  color: var(--text-primary);
}

/* Loading / error states */
.loading, .error-msg, .empty-msg {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-secondary);
  font-size: 1rem;
}

.error-msg {
  color: var(--danger);
}

/* Utility: visually hidden (screen-reader only) */
.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;
}

/* Browse page layout classes */
.browse-main {
  padding-top: 32px;
  padding-bottom: 64px;
}

.browse-title {
  font-size: 1.6rem;
  margin-bottom: 24px;
}

/* Skill detail: version badge */
.badge-version {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-secondary);
}

/* Skill detail: author */
.skill-author {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Skill detail: back link in not-found state */
.back-link {
  display: block;
  margin-top: 16px;
  text-align: center;
}

/* Docs page */
.docs-main {
  padding-top: 32px;
  padding-bottom: 64px;
}

.docs-title {
  font-size: 1.6rem;
  margin-bottom: 8px;
}

.docs-intro {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.docs-toc {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 40px;
}

.docs-toc ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
}

.docs-toc a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.docs-toc a:hover {
  color: var(--accent);
}

.docs-section {
  margin-bottom: 48px;
}

.docs-h2 {
  font-size: 1.4rem;
  margin-bottom: 24px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.docs-h3 {
  font-size: 1.1rem;
  margin-top: 24px;
  margin-bottom: 12px;
}

.docs-paragraph {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.docs-detail {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 6px;
}

.docs-severity-table {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
  margin-bottom: 24px;
}

.docs-severity-row {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.docs-severity-row .badge {
  min-width: 72px;
  text-align: center;
}

.docs-badge-warning {
  background: rgba(251, 146, 60, 0.15);
  color: var(--type-workflow);
}

.docs-badge-danger {
  background: rgba(248, 113, 113, 0.15);
  color: var(--danger);
}

/* Format file cards (docs) */
.format-files {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 12px 0 24px;
}

.format-file {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
}

.format-file-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-weight: 600;
}

.format-file p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.footer-github {
  display: inline-block;
  vertical-align: middle;
  margin-left: 8px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.footer-github:hover {
  color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .path-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .skill-title {
    font-size: 1.5rem;
  }

  .install-box {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 48px 0 32px;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .path-card {
    padding: 28px 20px;
  }

  .skill-card {
    padding: 18px;
  }
}