/* ============================================================
   DOAN THEME — michaeldoan.com
   Base: Flexoki palette | Accent: #667F0B
   ============================================================ */

:root {
  --bg:       #FFFCF0;
  --bg-2:     #F2F0E5;
  --ui:       #E6E4D9;
  --ui-2:     #DAD8CE;
  --ui-3:     #CECDC3;
  --tx:       #100F0F;
  --tx-2:     #6F6E69;
  --tx-3:     #B7B5AC;
  --accent:   #5B7A8A;
  --accent-d: #3D5A6B;

  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "DM Mono", "Fira Mono", monospace;

  --measure: 68ch;
  --gap: clamp(1rem, 4vw, 2rem);
  --gap-lg: clamp(2rem, 6vw, 4rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:       #100F0F;
    --bg-2:     #1C1B1A;
    --ui:       #282726;
    --ui-2:     #343331;
    --ui-3:     #403E3C;
    --tx:       #CECDC3;
    --tx-2:     #878580;
    --tx-3:     #575653;
    --accent:   #7FA8B8;
    --accent-d: #A0C4D4;
  }
}

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

html {
  font-size: 18px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--tx);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { max-width: 100%; display: block; }
.float-right { float: right; display: inline; margin: 0 0 1rem 2rem; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ── Layout ─────────────────────────────────────────────── */
.site-wrap {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--gap-lg) var(--gap) 0;
  flex: 1;
}

/* ── Header / Nav ───────────────────────────────────────── */
.site-header {
  padding: 0;
  margin-bottom: 0;
}

.site-header .inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-name {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--accent);
}

.site-name a {
  color: inherit;
  text-decoration: none;
}

.site-name a:hover { color: var(--accent-d); text-decoration: none; }

nav {
  display: flex;
  gap: 1.5rem;
}

nav a {
  font-size: 0.9rem;
  color: var(--tx-2);
  text-decoration: none;
  transition: color 0.15s;
}

nav a:hover,
nav a.active {
  color: var(--tx);
  text-decoration: none;
}

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  margin-top: var(--gap-lg);
  padding: 1.5rem 0;
}

.site-footer .inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--gap);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-footer p {
  font-size: 0.8rem;
  color: var(--tx-3);
}

.site-footer a {
  font-size: 0.8rem;
  color: var(--tx-3);
}

.site-footer a:hover { color: var(--tx-2); }

/* ── Homepage ───────────────────────────────────────────── */
.home-profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: var(--gap-lg);
}

.home-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin-bottom: 1.25rem;
  display: block;
}

.home-subtitle {
  font-size: clamp(1.75rem, 6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--tx);
  max-width: 52ch;
  margin: 0;
}

.home-bio {
  font-size: 0.95rem;
  color: #B7B5AC;
  margin-top: 0.5rem;
}

.home-bio a {
  color: #B7B5AC;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.home-bio a:hover {
  color: var(--tx-2);
  text-decoration: underline;
}

.home-subtitle-link {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s;
}

.home-subtitle-link:hover {
  color: var(--accent-d);
  text-decoration: none;
}

/* ── Section label ──────────────────────────────────────── */
.pinned-label {
  margin-bottom: 0.75rem;
}

.pinned-label::after {
  content: none;
}

.writing-label {
  margin-top: 2.5rem;
}

.featured-post {
  background: var(--bg-2);
  border-left: 3px solid var(--accent);
  border-radius: 0 6px 6px 0;
  padding: 1.25rem 1.4rem;
  margin-bottom: 0;
}

.featured-title {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.featured-title:hover {
  color: var(--accent-d);
  text-decoration: none;
}

.featured-desc {
  font-size: 0.9rem;
  color: var(--tx-2);
  margin-top: 0.5rem;
  line-height: 1.55;
}

.section-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tx-3);
  text-decoration: none;
  margin-bottom: 1.5rem;
  transition: color 0.15s;
}

.section-label::after {
  content: " →";
}

.section-label:hover {
  color: var(--tx-2);
  text-decoration: none;
}

/* ── Post list ──────────────────────────────────────────── */
.post-list {
  list-style: none;
}

.post-list-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 0.2rem 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--ui);
}

.post-list-summary {
  grid-column: 1 / -1;
  font-size: 0.875rem;
  color: var(--tx-3);
  line-height: 1.55;
  margin: 0.15rem 0 0;
}

.post-list-item:first-child {
  border-top: 1px solid var(--ui);
}

.post-list-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--tx);
  text-decoration: none;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.post-list-title:hover {
  color: var(--accent);
  text-decoration: none;
}

.post-list-date {
  font-size: 0.78rem;
  color: var(--tx-3);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* ── Single post ────────────────────────────────────────── */
.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--ui);
}

.post-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--tx-3);
}

.post-meta span + span::before {
  content: "·";
  margin-right: 1rem;
}

/* ── Post content ───────────────────────────────────────── */
.post-content {
  max-width: var(--measure);
}

.post-content p {
  margin-bottom: 1.4rem;
}

.post-content h2 {
  font-size: 1.3rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 2.5rem 0 0.75rem;
  line-height: 1.25;
}

.post-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 2rem 0 0.5rem;
}

.post-content ul,
.post-content ol {
  padding-left: 1.4rem;
  margin-bottom: 1.4rem;
}

.post-content li { margin-bottom: 0.35rem; }

.post-content blockquote {
  border-left: 3px solid var(--accent);
  background: var(--bg-2);
  padding: 1rem 1.25rem;
  margin: 1.75rem 0;
  color: var(--tx-2);
  font-style: italic;
  border-radius: 0 4px 4px 0;
}

.post-content blockquote p { margin-bottom: 0; }

.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-2);
  border: 1px solid var(--ui);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

.post-content pre {
  background: var(--bg-2);
  border: 1px solid var(--ui);
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.4rem;
  border-radius: 4px;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
}

.post-content hr {
  border: none;
  border-top: 1px solid var(--ui);
  margin: 2.5rem 0;
}

.post-content img {
  max-width: 100%;
  margin: 2rem 0;
  border: 1px solid var(--ui);
}

/* ── Post nav ───────────────────────────────────────────── */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ui);
}

.post-nav-prev { text-align: left; }
.post-nav-next { text-align: right; }

.post-nav-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tx-3);
  margin-bottom: 0.25rem;
}

.post-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--tx);
  text-decoration: none;
  line-height: 1.3;
}

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

/* ── Tags ───────────────────────────────────────────────── */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 2rem;
}

.tag {
  font-size: 0.75rem;
  color: var(--tx-2);
  background: var(--bg-2);
  border: 1px solid var(--ui);
  padding: 0.2em 0.6em;
  border-radius: 3px;
  text-decoration: none;
}

.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ── Page (about, etc.) ─────────────────────────────────── */
.back-link {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--tx-3);
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color 0.15s;
}

.back-link:hover {
  color: var(--tx-2);
  text-decoration: none;
}

.page-title {
  font-size: clamp(1.4rem, 3.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--ui);
}

.page-content p { margin-bottom: 1.4rem; }
.page-content h2 {
  font-size: 1.2rem;
  font-weight: 650;
  margin: 2.25rem 0 0.75rem;
  letter-spacing: -0.015em;
}
.page-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.page-content ul, .page-content ol { padding-left: 1.4rem; margin-bottom: 1.4rem; }
.page-content li { margin-bottom: 0.35rem; }

/* ── Archive ────────────────────────────────────────────── */
.archive-year {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--tx-3);
  margin: 2.5rem 0 0.75rem;
}

.archive-year:first-child { margin-top: 0; }

/* ── 404 ────────────────────────────────────────────────── */
.not-found {
  padding: 4rem 0;
}

.not-found h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 480px) {
  .post-list-item {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  .post-nav-next { text-align: left; }
}