/*
 *  Components: hero, tabs, cards, writing, footer.
 */

/* ─── Hero ─────────────────────────────────── */
.hero h1 {
  font-size: 3.6rem;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.hero .title {
  font-size: 1.05rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.hero .title a {
  color: var(--muted);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 0.18em;
}

.hero .title a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

.hero .subtitle {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 46ch;
}

.cursor {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85em;
  color: var(--accent);
  animation: blink 1.2s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}

/* ─── Tab Navigation ───────────────────────── */
.tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.tab {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s ease;
  letter-spacing: 0.02em;
}

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

.tab.active {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.5em;
  text-decoration-thickness: 1px;
}

.tab-sep {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.65rem;
  color: var(--border);
  user-select: none;
}

/* ─── About ────────────────────────────────── */
.about p {
  color: var(--text);
  margin-bottom: 0.65rem;
  max-width: 56ch;
}

.about p a,
.currently p a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--border);
  text-underline-offset: 0.18em;
}

.about p a:hover,
.currently p a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ─── Currently ────────────────────────────── */
.currently p {
  color: var(--text);
  max-width: 56ch;
  margin-bottom: 0.5rem;
}

.currently strong {
  font-weight: 400;
  font-style: italic;
}

/* ─── Annotated terms ──────────────────────── */
.annotated {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  text-decoration-style: dotted;
  cursor: help;
  position: relative;
  transition: color 0.2s ease;
}

.annotated:hover,
.annotated.active {
  color: var(--accent);
}

/* ─── Margin note ──────────────────────────── */
.margin-note {
  position: fixed;
  right: 2rem;
  width: 240px;
  padding: 0.85rem 1rem;
  background: var(--note-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--muted);
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 10;
  box-shadow: 0 2px 8px rgba(44, 40, 37, 0.06);
}

.margin-note.visible {
  opacity: 1;
  transform: translateY(0);
}

.margin-note::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 50%;
  width: 10px;
  height: 1px;
  background: var(--border);
}

/* ─── Achievements ─────────────────────────── */
.achieve-list {
  display: flex;
  flex-direction: column;
}

.achieve-card {
  padding: 1.05rem 0;
  border-top: 1px solid var(--border);
}

.achieve-card:last-child {
  border-bottom: 1px solid var(--border);
}

.achieve-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.3rem;
}

.achieve-name {
  font-size: 0.95rem;
  color: var(--text);
  white-space: nowrap;
}

.achieve-sponsor {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.65rem;
  color: var(--accent);
  text-align: right;
  line-height: 1.4;
}

.achieve-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.55;
  max-width: 54ch;
}

.achieve-desc strong {
  font-weight: 400;
  color: var(--text);
}

/* ─── Contributions ────────────────────────── */
.contrib-list {
  display: flex;
  flex-direction: column;
}

.contrib-card {
  padding: 1.2rem 0;
  border-top: 1px solid var(--border);
}

.contrib-card:last-child {
  border-bottom: 1px solid var(--border);
}

.contrib-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.contrib-name {
  font-size: 1rem;
  color: var(--text);
}

.contrib-desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.55;
  max-width: 52ch;
  margin-bottom: 0.4rem;
}

.contrib-link {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.72rem;
  color: var(--muted);
  transition: color 0.2s ease;
}

.contrib-link:hover {
  color: var(--accent);
}

/* ─── Projects ─────────────────────────────── */
.project-list {
  display: flex;
  flex-direction: column;
}

.project-card {
  border-top: 1px solid var(--border);
}

.project-card:last-of-type {
  border-bottom: 1px solid var(--border);
}

.project-summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.1rem 0.6rem;
  align-items: baseline;
  padding: 1.05rem 0;
  cursor: pointer;
  list-style: none;
}

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

.project-name {
  grid-column: 1;
  grid-row: 1;
  font-size: 1rem;
  color: var(--text);
}

.project-desc {
  grid-column: 1;
  grid-row: 2;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
  padding-right: 0.5rem;
}

.expand-hint {
  grid-column: 3;
  grid-row: 1;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  color: var(--muted);
  transition: transform 0.25s ease;
  width: 18px;
  text-align: center;
}

.project-card[open] .expand-hint {
  transform: rotate(45deg);
}

.project-detail {
  padding: 0 0 1.2rem 0;
}

.project-detail p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
  max-width: 54ch;
  margin-bottom: 0.6rem;
}

.project-link {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.72rem;
  color: var(--muted);
}

.project-link:hover {
  color: var(--accent);
}

/* Mobile project layout */
@media (max-width: 520px) {
  .project-summary {
    grid-template-columns: 1fr auto;
  }

  .expand-hint {
    grid-column: 2;
    grid-row: 2;
  }

  .project-desc {
    grid-column: 1;
    grid-row: 2;
  }
}

/* ─── Writing ──────────────────────────────── */
.writing-list {
  display: flex;
  flex-direction: column;
}

.writing-item {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 1.05rem 0;
  border-top: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s ease;
}

.writing-item:last-child {
  border-bottom: 1px solid var(--border);
}

.writing-item:hover {
  background: var(--surface);
}

.writing-item .writing-title {
  font-size: 0.95rem;
  color: var(--text);
}

.writing-item .writing-date {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.65rem;
  color: var(--accent);
  margin-top: 0.15rem;
}

.writing-item .writing-desc {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.5;
  max-width: 52ch;
}

.writing-back {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.7rem;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-bottom: 2rem;
  transition: color 0.2s ease;
}

.writing-back:hover {
  color: var(--accent);
}

/* Rendered article content */
.article-content {
  max-width: 56ch;
}

.article-content h1 {
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.article-content h2 {
  font-size: 1.05rem;
  font-weight: 400;
  font-style: normal;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text);
  margin: 2rem 0 0.5rem 0;
}

.article-content h3 {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text);
  margin: 1.5rem 0 0.4rem 0;
}

.article-content p {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.65;
  margin-bottom: 0.75rem;
}

.article-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.article-content ul,
.article-content ol {
  margin: 0.5rem 0 0.75rem 1.25rem;
}

.article-content li {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 0.25rem;
}

.article-content code {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.78rem;
  background: var(--surface);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  border: 1px solid var(--border);
}

.article-content pre {
  font-family: "JetBrains Mono", "SF Mono", "Cascadia Code", monospace;
  font-size: 0.72rem;
  background: var(--surface);
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow-x: auto;
  margin: 0.75rem 0 1rem 0;
  line-height: 1.55;
}

.article-content pre code {
  background: none;
  padding: 0;
  border: none;
  font-size: inherit;
}

.article-content blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  margin: 0.75rem 0 1rem 0;
  color: var(--muted);
  font-style: italic;
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.article-content strong {
  font-weight: 400;
  color: var(--text);
}

.article-content em {
  font-style: italic;
}

/* Tables */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0 1rem 0;
  font-size: 0.8rem;
}

.article-content th {
  text-align: left;
  font-weight: 400;
  color: var(--text);
  padding: 0.4rem 0.75rem 0.4rem 0;
  border-bottom: 1px solid var(--border);
  border-top: 1px solid var(--border);
}

.article-content td {
  padding: 0.35rem 0.75rem 0.35rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

/* Mermaid diagrams */
.article-content .mermaid {
  margin: 1rem 0;
  text-align: center;
}

.article-content .mermaid svg {
  max-width: 100%;
  height: auto;
}

/* ─── Connect ──────────────────────────────── */
.links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.links a {
  font-size: 0.95rem;
}

/* ─── Footer ───────────────────────────────── */
footer {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

footer p {
  font-size: 0.75rem;
  color: #c5beb5;
}