/* =========================================================
   TWIAV — design tokens
   Cartographic-but-restrained: paper background, deep teal
   ink accent, contour hairlines, mono "map-margin" labels
   for coordinates/dates/utility text.
   ========================================================= */
:root{
  --paper:        #F6F7F5;
  --surface:      #FFFFFF;
  --ink:          #16201D;
  --ink-muted:    #5C6864;
  --ink-faint:    #8C9793;
  --line:         #DBE1DC;
  --line-strong:  #C3CBC6;
  --accent:       #6B8451;
  --accent-deep:  #17403F;
  --accent-soft:  #E5EFEE;
  --accent-soft-2:#D9E9E7;

  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono:    "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --max-w: 1120px;
  --gap:   1.5rem;
  --radius: 3px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(22,32,29,0.06);
  --shadow-md: 0 6px 20px rgba(22,32,29,0.08);
}

@media (prefers-reduced-motion: no-preference){
  :root{ --transition: 160ms ease; }
}
@media (prefers-reduced-motion: reduce){
  :root{ --transition: 0ms; }
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior: auto; } }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width: 100%; display: block; }

a{ color: var(--accent); text-decoration: none; }
a:hover{ color: var(--accent-deep); text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
  color: var(--ink);
}
h1{ font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 700; }
h2{ font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3{ font-size: 1.15rem; }
p{ margin: 0 0 1em; color: var(--ink); }

.container{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- utility / "map-margin" text ---------- */
.mono{ font-family: var(--font-mono); }
.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.6rem;
}
.section-head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.9rem;
}
.section-head h2{ margin: 0; }
.section-head .see-all{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

/* ---------- header ---------- */
.site-header{
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .container{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}
.brand{
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
}
.brand:hover{ text-decoration: none; }
.brand-mark{
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  display: block;
}
.brand-text{
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand-text .brand-name{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
}
.brand-text .brand-tag{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  margin-top: 0.15rem;
}

.nav-toggle{
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  width: 42px;
  height: 38px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.nav-toggle span{
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
}

.main-nav ul{
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}
.main-nav a{
  color: var(--ink);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover{ color: var(--accent); text-decoration: none; }
.main-nav a[aria-current="page"]{
  color: var(--accent-deep);
  border-bottom-color: var(--accent);
}

@media (max-width: 760px){
  .nav-toggle{ display: inline-flex; }
  .main-nav{
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }
  .main-nav.open{ max-height: 320px; }
  .main-nav ul{
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 1.5rem 1.25rem;
  }
  .main-nav a{ display: block; padding: 0.65rem 0; border-bottom: 1px solid var(--line); }
  .main-nav a[aria-current="page"]{ border-bottom: 1px solid var(--line); }
}

/* ---------- hero ---------- */
.hero{
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.hero .container{
  padding-top: 4.5rem;
  padding-bottom: 4.5rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
}
.hero-contours{
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}
.hero-copy{ position: relative; z-index: 1; }
.hero-copy .lede{
  font-size: 1.1rem;
  color: var(--ink-muted);
  max-width: 42ch;
}
.hero-actions{
  display: flex;
  gap: 0.9rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}
.hero-figure{
  position: relative;
  z-index: 1;
}

@media (max-width: 860px){
  .hero .container{ grid-template-columns: 1fr; }
  .hero-figure{ order: -1; max-width: 340px; margin: 0 auto; }
}

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.btn:hover{ text-decoration: none; }
.btn-primary{
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover{ background: var(--accent-deep); color: #fff; }
.btn-ghost{
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent-deep); }

/* ---------- sections ---------- */
.section{ padding: 3.5rem 0; }
.section + .section{ border-top: 1px solid var(--line); }

/* ---------- gallery tiles ---------- */
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: var(--gap);
}
.tile{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.tile:hover{
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.tile-thumb{
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--accent-soft);
  display: block;
}
.tile-thumb img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.tile-thumb svg.tile-thumb-art{ width: 100%; height: 100%; display: block; }
.tile-thumb-overlay{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.tile-body{
  padding: 1.1rem 1.2rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}
.tile-body h3{ margin: 0; }
.tile-body h3 a{
  color: var(--ink);
}
.tile-body h3 a:hover{ color: var(--accent-deep); }
.tile-body p{
  color: var(--ink-muted);
  font-size: 0.92rem;
  margin: 0;
  flex: 1;
}
.tile-meta{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  text-transform: uppercase;
  margin-top: 0.3rem;
}
.tile-link{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-top: 0.5rem;
  display: inline-block;
}

/* ---------- blog list ---------- */
.post-list{
  list-style: none;
  margin: 0;
  padding: 0;
}
.post-row{
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 1.25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.post-row:first-child{ padding-top: 0; }
.post-date{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  white-space: nowrap;
}
.post-row h3{ margin: 0 0 0.25rem; font-size: 1.05rem; }
.post-row h3 a{ color: var(--ink); }
.post-row h3 a:hover{ color: var(--accent-deep); }
.post-excerpt{
  color: var(--ink-muted);
  font-size: 0.92rem;
  margin: 0;
}
@media (max-width: 560px){
  .post-row{ grid-template-columns: 1fr; gap: 0.25rem; }
}

/* ---------- article ---------- */
.article-head{
  padding: 3rem 0 2rem;
  border-bottom: 1px solid var(--line);
}
.article-head h1{ margin-bottom: 0.9rem; }
.article-meta{
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-deep);
  background: var(--accent-soft);
  padding: 0.35rem 0.7rem;
  border-radius: 2px;
}
.article-body{
  padding: 2.5rem 0;
  max-width: 70ch;
}
.article-body h2{ margin-top: 2em; }
.article-body h3{ margin-top: 1.6em; }
.article-body img{ border-radius: var(--radius-lg); border: 1px solid var(--line); margin: 1.5em 0; }
.article-body pre{
  background: var(--ink);
  color: #E7EDE9;
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.article-body code{
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--accent-soft);
  padding: 0.1em 0.35em;
  border-radius: 2px;
}
.article-body pre code{ background: none; padding: 0; }

---------- syntax highlighting (highlight.js token classes) ----------
   A restrained two-hue palette on the existing dark code background,
   instead of a generic rainbow theme — teal for keywords/tags, warm
   sand for strings, muted grey-teal for comments.
.hljs{ color: #E7EDE9; background: transparent; }
.hljs-comment, .hljs-quote{ color: #8CA39D; font-style: italic; }
.hljs-keyword, .hljs-selector-tag, .hljs-tag, .hljs-name,
.hljs-literal, .hljs-doctag, .hljs-symbol, .hljs-bullet, .hljs-link{ color: #7FD8D2; }
.hljs-string, .hljs-attr, .hljs-attribute, .hljs-template-tag, .hljs-regexp{ color: #F2C9A1; }
.hljs-number, .hljs-variable, .hljs-template-variable{ color: #C9DDD8; }
.hljs-title, .hljs-title.function_, .hljs-title.class_, .hljs-section, .hljs-selector-id{
  color: #FFFFFF;;
}
.hljs-built_in, .hljs-builtin-name, .hljs-type{ color: #B7E4DF; }
.hljs-meta{ color: #8CA39D; }
.hljs-emphasis{ font-style: italic; }
.hljs-strong{ font-weight: 700; }
.hljs-deletion{ background: rgba(214,92,92,0.18); }
.hljs-addition{ background: rgba(92,180,120,0.18); }
.article-body blockquote{
  border-left: 3px solid var(--accent);
  margin: 1.5em 0;
  padding: 0.2em 1.2em;
  color: var(--ink-muted);
}

---------- figure (opening image + inline images further down) ----------
.figure{
  margin: 0 0 2.25rem;
}
.figure img, .figure svg{
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
}
.figure figcaption{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--ink-faint);
  margin-top: 0.7rem;
}

/* ---------- blog pager (pan-control styled prev/next) ---------- */
.blog-pager{
  border-top: 1px solid var(--line);
  padding: 2rem 0 3.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.pager-btn{
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  background: var(--surface);
  transition: border-color var(--transition), background var(--transition);
  min-width: 0;
}
.pager-btn:hover{
  border-color: var(--accent);
  background: var(--accent-soft);
  text-decoration: none;
}
.pager-btn .pager-dir{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.pager-btn .pager-title{
  color: var(--ink);
  font-weight: 500;
  font-size: 0.92rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pager-next{ text-align: right; align-items: flex-end; }
.pager-next .pager-dir{ flex-direction: row-reverse; }
.pager-disabled{
  opacity: 0.35;
  pointer-events: none;
}
@media (max-width: 560px){
  .blog-pager{ grid-template-columns: 1fr; }
  .pager-next{ text-align: left; align-items: flex-start; }
  .pager-next .pager-dir{ flex-direction: row; }
}

/* ---------- about ---------- */
.about-grid{
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}
.tag-list{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1rem 0 0;
}
.tag-list li{
  font-family: var(--font-mono);
  font-size: 0.76rem;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: 0.3rem 0.6rem;
  color: var(--ink-muted);
}
@media (max-width: 640px){
  .about-grid{ grid-template-columns: 1fr; }
}

/* ---------- footer ---------- */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
  margin-top: 2rem;
}
.site-footer .container{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-coords{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
}
.footer-links{
  display: flex;
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.85rem;
}

/* ---------- obfuscated email link (envelope icon) ---------- */
.email-icon-link{
  display: inline-flex;
  align-items: center;
  color: var(--ink-muted);
}
.email-icon-link:hover{ color: var(--accent-deep); text-decoration: none; }
.email-icon-link svg{ width: 18px; height: 18px; }
.email-text-link{ color: var(--accent); }

/* ---------- avatar (about page) ---------- */
.avatar{
  width: 128px;
  height: 128px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-sm);
  background: var(--accent-soft);
}
.avatar img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- 404 ---------- */
.notfound{
  text-align: center;
  padding: 4.5rem 0 5rem;
}
.notfound-figure{
  width: 220px;
  margin: 0 auto 2rem;
}
.notfound .eyebrow{
  display: block;
  text-align: center;
}
.notfound h1{ margin-bottom: 0.75rem; }
.notfound .lede{
  max-width: 46ch;
  margin: 0 auto 2rem;
  color: var(--ink-muted);
}
.notfound .hero-actions{
  justify-content: center;
  margin-top: 0;
}
.notfound-coords{
  margin-top: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
}

/* ---------- misc ---------- */
.empty-state{
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  color: var(--ink-muted);
  font-size: 0.92rem;
}
.visually-hidden{
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}