/* ---------------------------------------------------------------
   Atelier — image-first blog
   Dark by default, light on request. One accent, lots of air.
   --------------------------------------------------------------- */

/* Self-hosted so the display face looks the same everywhere — no CDN,
   no request leaving the tunnel. SIL OFL 1.1, see fonts/LICENSE.txt. */
@font-face {
  font-family: "Instrument Serif";
  src: url("/assets/fonts/instrument-serif-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("/assets/fonts/instrument-serif-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

:root {
  --bg: #0b0b0d;
  --bg-elev: #131317;
  --line: rgba(255, 255, 255, 0.12);
  --line-soft: rgba(255, 255, 255, 0.06);
  --text: #f0eee9;
  --muted: #96938c;
  --accent: #ff6a3d;
  --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.9);

  --font-display: "Instrument Serif", "Iowan Old Style", Palatino, Georgia, ui-serif, serif;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --page: min(1440px, 100% - 2 * var(--gutter));
  --gutter: clamp(1.1rem, 4vw, 3.5rem);
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

:root[data-theme="light"] {
  --bg: #f6f4ef;
  --bg-elev: #ffffff;
  --line: rgba(0, 0, 0, 0.14);
  --line-soft: rgba(0, 0, 0, 0.07);
  --text: #16150f;
  --muted: #6d6a61;
  --shadow: 0 22px 50px -30px rgba(0, 0, 0, 0.45);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6f4ef;
    --bg-elev: #ffffff;
    --line: rgba(0, 0, 0, 0.14);
    --line-soft: rgba(0, 0, 0, 0.07);
    --text: #16150f;
    --muted: #6d6a61;
    --shadow: 0 22px 50px -30px rgba(0, 0, 0, 0.45);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: #0b0b0d; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Fine film grain over everything — kills banding on flat backgrounds. */
.grain {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0.22;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- header ---------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  width: 100%;
  padding: 0.85rem var(--gutter);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 60%, transparent);
  animation: pulse 3.5s var(--ease) infinite;
}

@keyframes pulse {
  0%, 70%, 100% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 55%, transparent); }
  35% { box-shadow: 0 0 0 7px transparent; }
}

.site-nav {
  display: flex;
  gap: 1.4rem;
  margin-right: auto;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-family: var(--font-mono);
  color: var(--muted);
}

.site-nav a { position: relative; padding-block: 0.25rem; transition: color 0.25s; }
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease);
}
.site-nav a:hover { color: var(--text); }
.site-nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.head-tools { display: flex; align-items: center; gap: 0.6rem; }

.search input {
  width: clamp(90px, 16vw, 190px);
  padding: 0.45rem 0.8rem;
  font: inherit;
  font-size: 0.85rem;
  color: var(--text);
  background: var(--line-soft);
  border: 1px solid transparent;
  border-radius: 999px;
  transition: border-color 0.25s, background 0.25s;
}
.search input::placeholder { color: var(--muted); }
.search input:focus { outline: none; border-color: var(--accent); background: var(--bg-elev); }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  color: var(--muted);
  background: none;
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s, transform 0.4s var(--ease);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); transform: rotate(35deg); }
.theme-toggle svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; }

/* ---------- layout ---------- */

main {
  width: var(--page);
  margin-inline: auto;
  padding-block: clamp(2.5rem, 7vw, 5.5rem) 5rem;
}

.hero { margin-bottom: clamp(2.5rem, 6vw, 4.5rem); }

.eyebrow {
  margin: 0 0 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.display {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.8rem, 7.5vw, 5.6rem);
  line-height: 1;
  letter-spacing: -0.018em;
  text-wrap: balance;
  max-width: 14ch;
}

.hero--tight .display { max-width: 18ch; }

.hero-meta {
  margin-top: 1.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.section-title {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line-soft);
  margin: 4.5rem 0 2rem;
}

/* ---------- chips ---------- */

.chips {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2.2rem;
  padding-bottom: 0.4rem;
  overflow-x: auto;
  scrollbar-width: none;
}
.chips::-webkit-scrollbar { display: none; }

.chip {
  flex: none;
  padding: 0.4rem 0.95rem;
  font-size: 0.84rem;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.chip sup { font-size: 0.62em; margin-left: 0.25em; opacity: 0.65; }
.chip:hover { color: var(--text); border-color: var(--text); }
.chip.is-active { color: var(--bg); background: var(--text); border-color: var(--text); }

/* ---------- masonry grid ---------- */

.grid {
  columns: 3 300px;
  column-gap: clamp(0.9rem, 2vw, 1.6rem);
}

.card {
  break-inside: avoid;
  margin-bottom: clamp(0.9rem, 2vw, 1.6rem);
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.7s var(--ease) forwards;
  animation-delay: calc(var(--i, 0) * 55ms);
}

@keyframes rise {
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .card { opacity: 1; transform: none; animation: none; }
  html { scroll-behavior: auto; }
}

.card figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--bg-elev);
}

.card figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.5s;
}

.card a { display: block; }
.card:hover figure img { transform: scale(1.045); }

.card figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55), transparent 55%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
}
.card:hover figure::after { opacity: 1; }

.stack-badge {
  position: absolute;
  top: 0.7rem;
  right: 0.7rem;
  z-index: 2;
  min-width: 22px;
  padding: 0.15rem 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-align: center;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  border-radius: 999px;
}

.card-body { padding: 0.85rem 0.2rem 0.2rem; }

.card-kicker {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
}

.card-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.42rem;
  line-height: 1.18;
  letter-spacing: -0.005em;
  transition: color 0.25s;
}
.card:hover .card-title { color: var(--accent); }

/* text-only posts get their own visual language */
.card--text a {
  padding: 1.8rem 1.6rem 1.5rem;
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color 0.3s, transform 0.5s var(--ease);
}
.card--text:hover a { border-color: var(--accent); transform: translateY(-3px); }
.card--text .card-title { font-size: 1.85rem; margin-bottom: 0.7rem; }
.card-excerpt { margin: 0; color: var(--muted); font-size: 0.95rem; }
.card-more {
  display: inline-block;
  margin-top: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.empty { color: var(--muted); }
.empty a { color: var(--accent); }

/* ---------- post ---------- */

.post { max-width: 1100px; margin-inline: auto; }

.post-head { margin-bottom: 2.6rem; }

.post-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.3rem, 6vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.018em;
  text-wrap: balance;
  max-width: 15ch;
}

.tags { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 1.5rem 0 0; padding: 0; list-style: none; }
.tags a {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--muted);
  transition: color 0.2s;
}
.tags a:hover { color: var(--accent); }

.post-hero { margin: 0 0 3rem; }

/* The caption lives outside the frame, so the clip never eats it. */
.frame {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--bg-elev);
}
.post-hero .frame { box-shadow: var(--shadow); }
.frame img { width: 100%; height: 100%; object-fit: cover; cursor: zoom-in; }

figcaption {
  padding: 0.75rem 0.2rem 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.prose {
  max-width: 68ch;
  font-size: 1.12rem;
  line-height: 1.75;
}
.prose > * + * { margin-top: 1.35em; }
.prose h2, .prose h3, .prose h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-top: 2.4em;
}
.prose h2 { font-size: 1.9rem; }
.prose h3 { font-size: 1.45rem; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose blockquote {
  margin-inline: 0;
  padding-left: 1.4rem;
  border-left: 2px solid var(--accent);
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.45;
  color: var(--text);
}
.prose code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 0.15em 0.4em;
  background: var(--line-soft);
  border-radius: 5px;
}
.prose pre {
  padding: 1.1rem 1.2rem;
  overflow-x: auto;
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.prose pre code { padding: 0; background: none; }
.prose img { border-radius: var(--radius); }
.prose hr { border: none; border-top: 1px solid var(--line); margin-block: 2.5em; }
.prose ul, .prose ol { padding-left: 1.2rem; }
.prose li + li { margin-top: 0.4em; }

.post-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(0.9rem, 2vw, 1.5rem);
  margin-top: 4rem;
}
.post-gallery figure { margin: 0; }
.post-gallery img { transition: transform 0.7s var(--ease); }
.post-gallery .frame:hover img { transform: scale(1.03); }

.post-actions {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--line-soft);
}

.like, .share, .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.25s, border-color 0.25s, background 0.25s, transform 0.2s;
}
.like:hover, .share:hover, .btn:hover { color: var(--text); border-color: var(--text); }
.like svg { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linejoin: round; }
.like.is-liked { color: var(--accent); border-color: var(--accent); }
.like.is-liked svg { fill: var(--accent); }
.like:active { transform: scale(0.94); }

.btn { text-decoration: none; }

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line-soft);
}
.post-nav-item { max-width: 45%; }
.post-nav-item.is-next { text-align: right; margin-left: auto; }
.post-nav-item span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.post-nav-item strong {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  transition: color 0.25s;
}
.post-nav-item:hover strong { color: var(--accent); }

/* ---------- archive ---------- */

.archive-year { margin-bottom: 3.5rem; }
.archive-year h2 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--muted);
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line-soft);
}
.archive-year ul { list-style: none; margin: 0; padding: 0; }
.archive-year a {
  display: grid;
  grid-template-columns: 8rem 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1rem 0.4rem;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.25s, padding-left 0.35s var(--ease);
}
.archive-year a:hover { background: var(--line-soft); padding-left: 1.1rem; }
.a-date, .a-kind { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); }
.a-title { font-family: var(--font-display); font-size: 1.3rem; letter-spacing: -0.02em; }
.archive-year a:hover .a-title { color: var(--accent); }

/* ---------- info ---------- */

.info-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(220px, 0.7fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
.info-grid .prose { margin-inline: 0; }
.info-side dl { display: grid; grid-template-columns: 1fr auto; gap: 0.9rem 1rem; margin: 0 0 2rem; }
.info-side dt { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.info-side dd { margin: 0; text-align: right; font-family: var(--font-display); font-size: 1.3rem; }

/* ---------- lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: color-mix(in oklab, var(--bg) 92%, black);
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
  cursor: zoom-out;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: var(--shadow);
  transform: scale(0.96);
  transition: transform 0.4s var(--ease);
}
.lightbox.is-open img { transform: none; }

/* ---------- footer ---------- */

.site-foot {
  border-top: 1px solid var(--line-soft);
  padding: 2.5rem var(--gutter);
}
.foot-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
  width: var(--page);
  max-width: 1440px;
  margin-inline: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.foot-links { display: flex; gap: 1.2rem; }
.foot-links a:hover { color: var(--accent); }

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .site-nav { gap: 1rem; font-size: 0.72rem; }
  .search { display: none; }
  .info-grid { grid-template-columns: 1fr; }
  .archive-year a { grid-template-columns: 1fr auto; }
  .a-date { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .grid { columns: 1; }
  .post-nav { flex-direction: column; }
  .post-nav-item, .post-nav-item.is-next { max-width: none; text-align: left; margin-left: 0; }
}

@media (max-width: 400px) {
  .brand-name { display: none; }
  .site-nav { gap: 0.85rem; }
}