:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --secondary: #666666;
  --accent: #0066cc;
  --border: #e5e5e5;
  --spacing: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --text: #e5e5e5;
    --secondary: #999999;
    --accent: #4d9fff;
    --border: #333333;
  }
}

/* ===========================
   BASE STYLES
   =========================== */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  padding: var(--spacing);
  max-width: 42rem;
  margin: 0 auto;
}

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

a:hover {
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: calc(var(--spacing) * 2) 0;
}

/* ===========================
   TYPOGRAPHY
   =========================== */

h1 {
  font-size: 2rem;
  margin-bottom: var(--spacing);
  line-height: 1.2;
}

h2 {
  font-size: 1.5rem;
  margin-top: calc(var(--spacing) * 2);
  margin-bottom: var(--spacing);
}

h3 {
  font-size: 1.25rem;
  margin-top: calc(var(--spacing) * 1.5);
  margin-bottom: calc(var(--spacing) * 0.5);
}

main p {
  margin-bottom: calc(var(--spacing) * 1.5);
}

main p:last-child {
  margin-bottom: 0;
}

.meta {
  color: var(--secondary);
  font-size: 0.9rem;
  margin-bottom: var(--spacing);
}

/* ===========================
   NAVIGATION
   =========================== */

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: calc(var(--spacing) * 3);
  padding-bottom: var(--spacing);
  border-bottom: 1px solid var(--border);
}

nav ul {
  display: flex;
  gap: var(--spacing);
  list-style: none;
}

nav a {
  color: var(--text);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  transition: background 0.2s ease, color 0.2s ease;
}

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

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

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

/* ===========================
   FOOTER
   =========================== */

footer {
  margin-top: calc(var(--spacing) * 4);
  padding-top: calc(var(--spacing) * 2);
  border-top: 1px solid var(--border);
  color: var(--secondary);
  font-size: 0.9rem;
}

footer ul {
  display: flex;
  gap: var(--spacing);
  list-style: none;
  margin-top: 0.5rem;
}

/* ===========================
   CONTENT SECTIONS
   =========================== */

.role-summary,
.post-preview {
  margin-bottom: calc(var(--spacing) * 2);
  padding-bottom: calc(var(--spacing) * 2);
  border-bottom: 1px solid var(--border);
}

.role-summary:last-child,
.post-preview:last-child {
  border-bottom: none;
}

.related {
  margin-top: calc(var(--spacing) * 2);
  padding-top: calc(var(--spacing) * 2);
  border-top: 1px solid var(--border);
}

.related ul {
  list-style: none;
}

.related li {
  margin-bottom: 0.5rem;
}

/* ===========================
   TAGS
   =========================== */

.tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.tag {
  background: var(--border);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--text);
  transition: background 0.2s ease, color 0.2s ease;
}

.tag:hover {
  background: var(--accent);
  color: var(--bg);
}

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

.rss-link {
  display: inline-block;
  font-size: 0.85rem;
  margin-left: 0.5rem;
  padding: 0.15rem 0.5rem;
  background: var(--border);
  border-radius: 0.25rem;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.rss-link:hover {
  background: var(--accent);
  color: var(--bg);
}

.rss-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===========================
   EXPANDABLE SECTIONS (details/summary)
   =========================== */

/* Role details */
.role-detail {
  margin-bottom: calc(var(--spacing) * 1.5);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
}

.role-summary-header {
  padding: var(--spacing);
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background 0.2s ease;
}

.role-summary-header::-webkit-details-marker,
.role-summary-header::marker {
  display: none;
}

.role-summary-header:hover {
  background: var(--border);
}

.role-summary-header:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.role-detail[open] .role-summary-header {
  border-bottom: 1px solid var(--border);
  background: var(--border);
}

.role-content {
  padding: var(--spacing);
}

.role-content ul {
  margin-left: var(--spacing);
}

/* Competencies (special h2-sized summary) */
.competencies-detail {
  margin: 0;
  border: none;
}

.competencies-summary {
  padding: 0;
  cursor: pointer;
  user-select: none;
  list-style: none;
  font-size: 1.5rem;
  margin-top: calc(var(--spacing) * 2);
  margin-bottom: var(--spacing);
  transition: color 0.2s ease;
}

.competencies-summary strong {
  font-weight: bold;
}

.competencies-summary:hover {
  color: var(--accent);
}

.competencies-summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 4px;
}

.competencies-content {
  padding: 0 0 0 calc(var(--spacing) * 1.5);
  line-height: 1.8;
  margin-bottom: calc(var(--spacing) * 2);
}

/* Learning sections */
.learning-detail {
  margin-bottom: var(--spacing);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
}

.learning-summary {
  padding: var(--spacing);
  cursor: pointer;
  user-select: none;
  list-style: none;
  background: var(--border);
  transition: background 0.2s ease, color 0.2s ease;
}

.learning-summary::-webkit-details-marker,
.learning-summary::marker {
  display: none;
}

.learning-summary:hover {
  background: var(--accent);
  color: var(--bg);
}

.learning-summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.learning-detail[open] .learning-summary {
  border-bottom: 1px solid var(--border);
}

.learning-content {
  padding: var(--spacing);
  line-height: 1.7;
}

.learning-content strong {
  display: block;
  margin-top: var(--spacing);
  margin-bottom: 0.5rem;
}

.learning-content ul {
  margin-left: calc(var(--spacing) * 1.5);
  padding-left: 0;
}

.learning-content li {
  margin-bottom: 0.25rem;
}

/* Media details (for /now page covers) */
.media-details {
  position: relative;
}

.media-summary {
  list-style: none;
  cursor: pointer;
  display: block;
  transition: transform 0.2s ease;
}

.media-summary::-webkit-details-marker,
.media-summary::marker {
  display: none;
}

/* Subtle lift on hover/focus - works on touch too */
.media-summary:hover,
.media-summary:focus-visible {
  transform: translateY(-2px);
}

.media-summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 0.5rem;
}

/* Active state - accent border on cover */
.media-summary .grid-cover,
.media-summary .placeholder-cover {
  border: 2px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.media-details[open] .media-summary .grid-cover,
.media-details[open] .media-summary .placeholder-cover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.media-info-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  min-width: 300px;
  max-width: 400px;
  background: var(--border);
  border-radius: 0.5rem;
  padding: var(--spacing);
  margin-top: 0.5rem;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.media-info-panel::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 8px solid transparent;
  border-bottom-color: var(--border);
}

/* ===========================
   LOGOS & IMAGES
   =========================== */

/* Company logos in role headers */
.role-header-content {
  display: flex;
  align-items: center;
  gap: var(--spacing);
}

.company-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
  border-radius: 0.25rem;
  background: var(--bg);
  padding: 0.25rem;
}

.role-header-text {
  flex: 1;
}

.company-name {
  color: var(--secondary);
}

/* Earlier experience logo grid */
.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: calc(var(--spacing) * 1.5);
  margin-top: var(--spacing);
}

.grid-logo {
  width: 100%;
  height: 80px;
  object-fit: contain;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--bg);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.grid-logo:hover,
.grid-logo:focus-visible {
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-color: var(--accent);
}

.grid-logo:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===========================
   MEDIA GRIDS (/now page)
   =========================== */

.media-simple-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--spacing);
  margin: calc(var(--spacing) * 1.5) 0 calc(var(--spacing) * 2);
}

/* Media covers - books (2:3) and albums (1:1) */
.grid-cover {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 0.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border: 2px solid transparent;
}

.reading-cover {
  aspect-ratio: 2 / 3;
}

.listening-cover {
  aspect-ratio: 1 / 1;
}

/* Placeholder covers */
.placeholder-cover {
  width: 100%;
  height: 100%;
  background: var(--border);
  border: 2px dashed var(--secondary);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--secondary);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.placeholder-cover:hover,
.placeholder-cover:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg);
}

.placeholder-cover.reading-cover {
  aspect-ratio: 2 / 3;
}

.placeholder-cover.listening-cover {
  aspect-ratio: 1 / 1;
}

/* Alternative media grid without tooltips */
.media-clean-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--spacing);
  margin: calc(var(--spacing) * 1.5) 0;
}

.media-cover-item {
  cursor: pointer;
  transition: transform 0.2s ease;
}

.media-cover-item:hover,
.media-cover-item:focus-within {
  transform: translateY(-2px);
}

.media-cover-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 0.5rem;
}

.media-cover-item .grid-cover.active,
.media-cover-item .placeholder-cover.active {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.media-info-display {
  max-height: 0;
  overflow: hidden;
  background: var(--border);
  border-radius: 0.5rem;
  margin-bottom: calc(var(--spacing) * 2);
  transition: max-height 0.3s ease, padding 0.3s ease;
  position: relative;
}

.media-info-display.active {
  max-height: 500px;
  padding: var(--spacing);
}

.close-info {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--secondary);
  padding: 0.25rem 0.5rem;
  line-height: 1;
  transition: color 0.2s ease;
}

.close-info:hover,
.close-info:focus-visible {
  color: var(--text);
}

.close-info:focus-visible {
  outline: 2px solid var(--accent);
  border-radius: 0.25rem;
}

/* ===========================
   NEWSLETTER FORM
   =========================== */

.newsletter {
  background: var(--border);
  padding: calc(var(--spacing) * 1.5);
  border-radius: 0.5rem;
  margin: calc(var(--spacing) * 2) 0;
}

.newsletter h3 {
  margin-top: 0;
}

.newsletter-form {
  margin-top: var(--spacing);
}

.form-group {
  margin-bottom: var(--spacing);
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.form-group input[type="email"] {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.25rem;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

.form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--accent);
}

.topic-selection {
  border: none;
  padding: 0;
  margin: var(--spacing) 0;
}

.topic-selection legend {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.topic-selection label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.topic-selection input[type="checkbox"] {
  cursor: pointer;
  width: 1rem;
  height: 1rem;
}

.topic-selection input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.newsletter-form button {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.25rem;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  width: 100%;
  transition: opacity 0.2s ease;
}

.newsletter-form button:hover {
  opacity: 0.9;
}

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

.newsletter-note {
  font-size: 0.85rem;
  color: var(--secondary);
  margin-top: 0.5rem;
  text-align: center;
}

/* ===========================
   RESPONSIVE
   =========================== */

@media (max-width: 600px) {
  body {
    font-size: 0.95rem;
  }
  
  h1 {
    font-size: 1.75rem;
  }
  
  nav {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing);
  }
  
  .logo-img {
    width: 36px;
    height: 36px;
  }
  
  .company-logo {
    width: 40px;
    height: 40px;
  }
  
  .logo-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: var(--spacing);
  }
  
  .grid-logo {
    height: 60px;
  }
  
  .media-simple-grid,
  .media-clean-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  }
  
  .media-info-panel {
    min-width: 250px;
    max-width: 90vw;
  }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}