/* ============================================================
   Phillip Sievers — personal site
   Minimal. One file. Original layout + dot-grid + theme toggle.
   ============================================================ */

:root {
  --bg: #000;
  --fg: #e8e8e8;
  --fg-dim: #888;
  --fg-faint: #4a4a4a;
  --fg-ghost: #1e1e1e;
  --code-bg: #0a0a0a;
  --accent: #fff;
  --mono: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --code: "DM Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --artistic: "Poiret One", "Inter", sans-serif;
  --tl: 0.18em;
  --maxw: 720px;
}

html.theme-light {
  --bg: #f2f0ec;
  --fg: #2a1f17;
  --fg-dim: #6e5b4a;
  --fg-faint: #b3a994;
  --fg-ghost: #d9d3c5;
  --code-bg: #eae4d6;
  --accent: #3a2619;
}

html[data-font] { --mono: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }

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

html, body {
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 300ms ease, color 300ms ease;
}
html { scroll-behavior: smooth; }
body { cursor: default; }
/* scroll-snap only outside pagination contexts; index.html uses JS hijack */
html:not([data-paginate]) { scroll-snap-type: y proximity; }
html:not([data-paginate]) section { scroll-snap-align: start; }
html[data-paginate], html[data-paginate] body { overscroll-behavior: none; }
a { color: inherit; text-decoration: none; transition: color 140ms ease, border-color 140ms ease; }
a:hover { color: var(--accent); }
.unselectable { user-select: none; -webkit-user-select: none; }
::selection { background: var(--fg); color: var(--bg); }

/* ---- illumination (fixed, full-viewport) ---- */
#illum {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ---- site header ---- */
.site-head {
  position: fixed;
  top: 22px;
  left: 28px;
  z-index: 20;
  font-family: var(--code);
  font-size: 11px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
  white-space: nowrap;
}
.site-head .crumb {
  color: var(--fg);
  font-family: var(--artistic);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.site-head .sep { display: inline-block; margin: 0 10px; color: var(--fg-faint); }
.site-head a:hover { color: var(--fg); }

/* ============================================================
   INDEX PAGE — two full-viewport sections, normal scroll
   ============================================================ */
section {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 32px;
}

/* landing nav */
.landing-nav {
  display: flex;
  gap: 36px;
  font-family: var(--code);
  font-size: 12px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
}
.landing-nav a {
  position: relative;
  padding: 6px 2px;
}
.landing-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}
.landing-nav a:hover::after { transform: scaleX(1); }

/* theme hint popup (landing only) */
.theme-hint {
  position: absolute;
  top: 56px;
  left: 50%;
  transform: translate(-50%, -6px);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px 8px 14px;
  font-family: var(--code);
  font-size: 10.5px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
  background: var(--bg);
  border: 1px solid var(--fg-ghost);
  opacity: 0;
  pointer-events: none;
  transition: opacity 260ms ease, transform 260ms ease;
}
.theme-hint.visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}
.theme-hint .dot-tag {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--fg-dim);
  animation: hint-pulse 1.8s ease infinite;
}
.theme-hint .hint-close {
  background: none; border: none; cursor: pointer;
  color: var(--fg-faint);
  font: inherit;
  font-size: 14px;
  line-height: 1;
  padding: 0 2px;
  margin-left: 4px;
}
.theme-hint .hint-close:hover { color: var(--fg); }
@keyframes hint-pulse {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 1; }
}

#down-trigger {
  position: absolute;
  bottom: 42px;
  background: none;
  border: none;
  color: var(--fg-dim);
  cursor: pointer;
  padding: 10px;
}
#down-trigger:hover { color: var(--fg); }
.bounce { animation: bounce 2.4s ease infinite; }
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(5px); }
}

/* blog section inside index */
.blog-wrap {
  width: 100%;
  max-width: var(--maxw);
}
.sect-title {
  font-family: var(--code);
  font-size: 11px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.sect-title .bar { width: 18px; height: 1px; background: var(--fg-faint); }
.sect-title .count { margin-left: auto; color: var(--fg-faint); font-variant-numeric: tabular-nums; }

/* ---- post list ---- */
.post-list {
  list-style: none;
  border-top: 1px solid var(--fg-ghost);
}
.post-list li { border-bottom: 1px solid var(--fg-ghost); }
.post-item {
  display: grid;
  grid-template-columns: 96px 1fr 128px;
  grid-template-rows: auto auto;
  column-gap: 24px;
  row-gap: 4px;
  padding: 22px 14px;
  align-items: start;
  color: var(--fg);
  border-left: 1px solid transparent;
  transition: background 200ms ease, border-color 200ms ease;
}
.post-item.no-cover { grid-template-columns: 96px 1fr; }
.post-item:hover {
  background: rgba(255,255,255,0.03);
  border-left-color: var(--fg-faint);
}
html.theme-light .post-item:hover {
  background: rgba(58,38,25,0.04);
}

.post-item .cover {
  display: block;
  width: 128px;
  height: 80px;
  overflow: hidden;
  background: var(--code-bg);
  border: 1px solid var(--fg-ghost);
  grid-column: 3;
  grid-row: 1 / span 2;
  align-self: start;
}
.post-item .cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 400ms ease;
}
.post-item:hover .cover img { transform: scale(1.04); }

.post-item .date {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--code);
  font-size: 11px;
  color: var(--fg-dim);
  font-variant-numeric: tabular-nums;
  padding-top: 3px;
}
.post-item .title-wrap {
  grid-column: 2;
  grid-row: 1 / span 2;
  min-width: 0;
}
.post-item .title { font-size: 14px; color: var(--fg); display: block; margin-bottom: 6px; }
.post-item .desc {
  font-size: 11.5px;
  color: var(--fg-dim);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-item .read {
  grid-column: 1;
  grid-row: 2;
  font-family: var(--code);
  font-size: 10.5px;
  color: var(--fg-faint);
  letter-spacing: var(--tl);
  text-transform: uppercase;
  white-space: nowrap;
}
.post-item:hover .read { color: var(--fg-dim); }

/* ---- empty state ---- */
.post-empty {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 28px 4px 28px 14px;
  border-left: 1px solid transparent;
}
.post-empty .empty-bar {
  width: 18px;
  height: 1px;
  background: var(--fg-faint);
  flex: 0 0 auto;
}
.post-empty .empty-text {
  font-size: 12px;
  color: var(--fg-dim);
  letter-spacing: 0.01em;
}
.blog-wrap.is-empty .blog-footer a { display: none; }

.blog-footer {
  margin-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-size: 11.5px;
  color: var(--fg-dim);
}
.blog-footer .meta {
  text-transform: none;
  letter-spacing: 0.02em;
}
.blog-footer a {
  font-family: var(--code);
  font-size: 11px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
}
.blog-footer a:hover { color: var(--fg); }
.blog-footer .arrow { display: inline-block; transition: transform 180ms ease; }
.blog-footer a:hover .arrow { transform: translateX(4px); }
.blog-footer a:hover .arrow.left { transform: translateX(-4px); }

/* ============================================================
   BLOG INDEX PAGE — fixed viewport, inner scroll
   ============================================================ */
html.locked, html.locked body { height: 100%; overflow: hidden; }

.blog-page {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 96px 32px 32px;
}
.blog-page .page-head {
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
  padding-bottom: 32px;
}
.blog-page .page-head .eyebrow {
  font-family: var(--code);
  font-size: 11px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 14px;
}
.blog-page .page-head h1 {
  font-family: var(--display);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.015em;
}
.blog-page .page-head .tagline {
  margin-top: 14px;
  color: var(--fg-dim);
  max-width: 52ch;
  font-size: 13px;
}

.scroll-area {
  overflow-y: auto;
  overflow-x: hidden;
  max-width: var(--maxw);
  width: 100%;
  margin: 0 auto;
  mask-image: linear-gradient(to bottom, transparent 0, #000 24px, #000 calc(100% - 24px), transparent 100%);
  scrollbar-width: thin;
  scrollbar-color: var(--fg-ghost) transparent;
}
.scroll-area::-webkit-scrollbar { width: 6px; }
.scroll-area::-webkit-scrollbar-track { background: transparent; }
.scroll-area::-webkit-scrollbar-thumb { background: var(--fg-ghost); border-radius: 3px; }

.blog-page .blog-footer {
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
  padding-top: 24px;
}

/* ============================================================
   POST PAGE — fixed viewport, prose scrolls
   ============================================================ */
.post-shell {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: grid;
  grid-template-rows: auto 1fr;
  padding: 96px 32px 0;
}
.post-shell .post-back-row {
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
  padding-bottom: 20px;
}
.post-back {
  display: inline-flex;
  gap: 10px;
  font-family: var(--code);
  font-size: 11px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
}
.post-back:hover { color: var(--fg); }
.post-back:hover .arrow { transform: translateX(-4px); }
.post-back .arrow { display: inline-block; transition: transform 180ms ease; }

.post-page {
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0 0 80px;
  scrollbar-width: thin;
  scrollbar-color: var(--fg-ghost) transparent;
  mask-image: linear-gradient(to bottom, transparent 0, #000 24px, #000 calc(100% - 40px), transparent 100%);
}
.post-page::-webkit-scrollbar { width: 6px; }
.post-page::-webkit-scrollbar-track { background: transparent; }
.post-page::-webkit-scrollbar-thumb { background: var(--fg-ghost); border-radius: 3px; }

.post-inner { max-width: var(--maxw); margin: 0 auto; padding-top: 28px; }

.post-cover {
  width: 100%;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  margin-bottom: 36px;
  background: var(--code-bg);
  border: 1px solid var(--fg-ghost);
}
.post-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.post-cover.placeholder {
  background:
    repeating-linear-gradient(135deg, var(--fg-ghost) 0 8px, transparent 8px 16px),
    var(--code-bg);
}

.post-head {
  margin-bottom: 44px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--fg-ghost);
}
.post-head .meta {
  display: flex;
  gap: 16px;
  font-family: var(--code);
  font-size: 11px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 20px;
}
.post-head .meta .dot { color: var(--fg-faint); }
.post-head h1 {
  font-family: var(--display);
  font-size: 32px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.015em;
  max-width: 26ch;
}

/* prose */
.prose { font-size: 14px; line-height: 1.78; }
.prose > * + * { margin-top: 1.35em; }
.prose h2 {
  font-family: var(--code);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-top: 2.6em;
  padding-top: 1.1em;
  border-top: 1px solid var(--fg-ghost);
}
.prose h3 { font-size: 14.5px; font-weight: 500; margin-top: 1.8em; }
.prose em { color: var(--fg-dim); font-style: normal; border-bottom: 1px dotted var(--fg-faint); }
.prose strong { color: var(--accent); font-weight: 500; }
.prose a { color: var(--fg); font-family: var(--code); border-bottom: 1px solid var(--fg-faint); }
.prose a:hover { border-bottom-color: var(--fg); }
.prose code {
  font-family: var(--code);
  font-size: 0.9em;
  background: var(--code-bg);
  border: 1px solid var(--fg-ghost);
  padding: 1px 6px;
  color: var(--accent);
}
.prose pre {
  font-family: var(--code);
  background: var(--code-bg);
  border: 1px solid var(--fg-ghost);
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 12.5px;
  line-height: 1.7;
}
.prose pre code { background: none; border: none; padding: 0; }
.prose blockquote {
  border-left: 1px solid var(--fg-faint);
  padding-left: 22px;
  color: var(--fg-dim);
}
.prose ul, .prose ol { padding-left: 1.4em; }
.prose li + li { margin-top: 0.4em; }

.post-foot {
  margin-top: 68px;
  padding-top: 28px;
  border-top: 1px solid var(--fg-ghost);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  font-family: var(--code);
  font-size: 11px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
}
.post-foot .nav-cell { color: var(--fg-dim); }
.post-foot .nav-cell.right { text-align: right; }
.post-foot .nav-cell .label { color: var(--fg-faint); display: block; margin-bottom: 8px; }
.post-foot .nav-cell.empty { opacity: 0.3; }
.post-foot .nav-cell a:hover { color: var(--fg); }

/* ---- tweaks panel ---- */
.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 50;
  width: 260px;
  background: var(--bg);
  border: 1px solid var(--fg-ghost);
  padding: 14px 16px;
  font-family: var(--code);
  font-size: 11px;
  display: none;
}
.tweaks.open { display: block; }
.tweaks .tw-title {
  font-size: 10px;
  letter-spacing: var(--tl);
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.tweaks .tw-close { background: none; border: none; color: var(--fg-faint); cursor: pointer; font: inherit; font-size: 14px; }
.tweaks .tw-close:hover { color: var(--fg); }
.tweaks .tw-row { margin-top: 12px; display: flex; flex-direction: column; gap: 6px; }
.tweaks .tw-label { font-size: 10px; letter-spacing: var(--tl); text-transform: uppercase; color: var(--fg-faint); }
.tweaks .tw-opts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; }
.tweaks .tw-opt {
  background: transparent;
  border: 1px solid var(--fg-ghost);
  color: var(--fg-dim);
  padding: 8px 10px;
  font: inherit;
  font-size: 10.5px;
  cursor: pointer;
  text-align: left;
}
.tweaks .tw-opt:hover { color: var(--fg); border-color: var(--fg-faint); }
.tweaks .tw-opt.active { color: var(--accent); border-color: var(--fg); }
.site-foot { display: none; }

/* mobile */
@media (max-width: 640px) {
  .site-head { top: 16px; left: 16px; font-size: 10px; }
  .landing-nav { gap: 22px; font-size: 11px; }
  .post-item {
    grid-template-columns: 72px 1fr 72px;
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 2px;
    padding: 16px 12px;
  }
  .post-item.no-cover { grid-template-columns: 72px 1fr; }
  .post-item .cover {
    width: 72px; height: 48px;
    grid-column: 3;
    grid-row: 1 / span 2;
  }
  .post-item .date { font-size: 10.5px; grid-column: 1; grid-row: 1; }
  .post-item .read { grid-column: 1; grid-row: 2; font-size: 9.5px; display: block; }
  .post-item .title-wrap { grid-column: 2; grid-row: 1 / span 2; }
  .blog-page .page-head h1 { font-size: 22px; }
  .post-head h1 { font-size: 22px; }
  .post-foot { grid-template-columns: 1fr; }
  .post-foot .nav-cell.right { text-align: left; }
  .tweaks { width: calc(100vw - 40px); }
}

@media (prefers-reduced-motion: reduce) {
  .bounce { animation: none; }
  * { transition: none !important; }
}