/* ═══════════════════════════════════════════════════════════════════
   roglia.ro — site styles
   Editorial Engineering: Fraunces (display) · Newsreader (body) ·
   JetBrains Mono (metadata). Light + dark via :root[data-theme].
   Weights use font-weight; font-variation-settings only carries Fraunces'
   SOFT axis (and opsz for the largest display type), because that property
   is inherited and would otherwise override bold text.
   Colour rule: spectrum for seams and topic markers, vermillion for
   actions, ink for everything else.
   ═══════════════════════════════════════════════════════════════════ */

/* ───── Theme tokens ───── */
:root[data-theme="dark"], :root:not([data-theme]) {
  color-scheme: dark;
  --bg:            #0E0E0F;
  --bg-elev:       #151513;
  --surface:       #1B1A17;
  --border:        rgba(245, 240, 228, 0.09);
  --border-strong: rgba(245, 240, 228, 0.18);
  --text:          #F2EFE7;
  --text-body:     #E7E3D9;
  --text-2:        #B3AFA3;
  --text-3:        #8C887D;
  --text-4:        #4E4C46;
  --accent:        #FF6B3D;
  --accent-2:      #FF8A5F;
  --accent-ink:    #0E0E0F;
  --accent-soft:   rgba(255, 107, 61, 0.13);
  --code-bg:       #151513;
  --code-border:   rgba(245, 240, 228, 0.08);
  --inline-code:   #FF9468;
  --selection-bg:  #FF6B3D;
  --selection-fg:  #0E0E0F;
  --rule:          rgba(245, 240, 228, 0.10);
  --rule-strong:   rgba(245, 240, 228, 0.20);
  --shadow:        0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 28px 56px -36px rgba(0, 0, 0, 0.85);
  --nav-shadow:    0 12px 40px -18px rgba(0, 0, 0, 0.55), 0 1px 0 0 rgba(255, 255, 255, 0.04) inset;
  --paper-vignette: radial-gradient(ellipse 90% 60% at 50% 0%, rgba(255, 107, 61, 0.04), transparent 65%);
  --line-mix:      100%;  /* share of a spectral hue kept in marks (light theme inks it down) */
  /* syntax colours */
  --syn-comment:   #8C887D;
  --syn-keyword:   #FF8A5F;
  --syn-string:    #E8B07A;
  --syn-number:    #B7A6FF;
  --syn-builtin:   #7FC8E8;
  --syn-type:      #9AD9B6;
  --syn-op:        #B3AFA3;
  --syn-del:       #FF7B72;
  --syn-ins:       #7EE787;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg:            #FBF8F1;
  --bg-elev:       #F4F0E5;
  --surface:       #FFFDF8;
  --border:        rgba(35, 26, 14, 0.11);
  --border-strong: rgba(35, 26, 14, 0.24);
  --text:          #1A1812;
  --text-body:     #1F1C16;
  --text-2:        #4A463C;
  --text-3:        #6B675C;
  --text-4:        #B5B0A2;
  --accent:        #B84514;
  --accent-2:      #9E3A0F;
  --accent-ink:    #FBF8F1;
  --accent-soft:   rgba(184, 69, 20, 0.10);
  --code-bg:       #F4F0E5;
  --code-border:   rgba(35, 26, 14, 0.10);
  --inline-code:   #8E3409;
  --selection-bg:  #B84514;
  --selection-fg:  #FBF8F1;
  --rule:          rgba(35, 26, 14, 0.12);
  --rule-strong:   rgba(35, 26, 14, 0.24);
  --shadow:        0 1px 2px rgba(35, 26, 14, 0.04), 0 28px 56px -40px rgba(35, 26, 14, 0.40);
  --nav-shadow:    0 10px 30px -18px rgba(35, 26, 14, 0.18), 0 1px 0 0 rgba(255, 255, 255, 0.6) inset;
  --paper-vignette: radial-gradient(ellipse 90% 60% at 50% 0%, rgba(184, 69, 20, 0.05), transparent 65%);
  --line-mix:      62%;
  --syn-comment:   #6B675C;
  --syn-keyword:   #B84514;
  --syn-string:    #8A5A12;
  --syn-number:    #5B45C4;
  --syn-builtin:   #1F6F8B;
  --syn-type:      #2E7A55;
  --syn-op:        #4A463C;
  --syn-del:       #B42318;
  --syn-ins:       #1A7F37;
}
:root {
  /* Prismatic ray stops (RGB triplets) — theme-independent, the hero is always dark. */
  --ray-amber:  255,176,112;
  --ray-rose:   255,138,95;
  --ray-violet: 155,123,255;
  --ray-indigo: 107,138,255;
  --ray-cyan:   95,212,255;
  --ray-green:  124,240,176;
  --hero-text:  #F2EFE7;
  --spectrum: linear-gradient(90deg, rgb(var(--ray-violet)), rgb(var(--ray-indigo)), rgb(var(--ray-cyan)), rgb(var(--ray-green)), rgb(var(--ray-amber)), rgb(var(--ray-rose)), #FF6B3D);

  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body:    "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1120px;
  --gutter: 24px;
}
@media (min-width: 768px) { :root { --gutter: 40px; } }

/* ───── Base ───── */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 96px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  position: relative;
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.5;
  font-feature-settings: "kern" 1, "liga" 1;
  transition: background-color 220ms ease, color 220ms ease;
}
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote, pre { margin: 0; }
h1, h2, h3, h4 { font-size: inherit; font-weight: 500; }
ul[class], ol[class] { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a, button { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--selection-bg); color: var(--selection-fg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }
main:focus { outline: none; }
.tabnum { font-variant-numeric: tabular-nums lining-nums; }
html:not(.js) .nav-toggle, html:not(.js) .nav-divider--toggle, html:not(.js) [data-copy] { display: none; }

.skip-link {
  position: fixed; left: 16px; top: 16px; z-index: 100;
  padding: 10px 14px; border-radius: 8px;
  background: var(--accent); color: var(--accent-ink);
  font: 500 0.78rem/1 var(--font-mono);
  transform: translateY(-200%);
  transition: transform 160ms ease;
}
.skip-link:focus { transform: none; }

/* Paper vignette — barely visible warmth at the top of the document */
body::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 70vh;
  background: var(--paper-vignette);
  pointer-events: none; z-index: 0;
}
body > * { position: relative; z-index: 1; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: 760px; }

/* Lists whose items travel with their separator ("Python · llama.cpp · MCP") */
.inline-list { display: inline-flex; flex-wrap: wrap; }
.inline-list li { white-space: nowrap; }
.inline-list li + li::before { content: "·"; margin: 0 0.5em; opacity: 0.55; }

/* ───── Reveal on load (pure CSS — content is never hidden without JS) ───── */
@media (prefers-reduced-motion: no-preference) {
  .reveal { animation: reveal-up 760ms cubic-bezier(.2, .7, .1, 1) both; animation-delay: calc(80ms + var(--d, 0) * 90ms); }
}
@keyframes reveal-up { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* ───── Navigation ───── */
.nav-pill {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
  z-index: 50;
  display: flex; align-items: center; gap: 2px;
  max-width: calc(100vw - 16px);
  padding: 6px 6px 6px 16px;
  white-space: nowrap;
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  box-shadow: var(--nav-shadow);
  transition: background-color 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}
@supports not (color: color-mix(in oklab, red, blue)) { .nav-pill { background: var(--bg); } }
.nav-brand {
  display: inline-flex; align-items: baseline;
  padding-right: 10px;
  font-family: var(--font-display); font-style: italic; font-weight: 480;
  font-variation-settings: "SOFT" 60;
  font-size: 1rem; letter-spacing: -0.01em;
  color: var(--text);
}
.nav-brand::after {
  content: "";
  display: inline-block;
  width: 4px; height: 4px; margin-left: 3px;
  background: var(--accent); border-radius: 999px;
  transform: translateY(-2px);
}
.nav-brand__full { display: none; }
@media (min-width: 640px) {
  .nav-brand__full { display: inline; }
  .nav-brand__short { display: none; }
}
.nav-divider { width: 1px; height: 14px; background: var(--border-strong); margin: 0 4px; }
.nav-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-2);
  padding: 8px 10px;
  border-radius: 999px;
  transition: color 180ms ease, background-color 180ms ease;
}
.nav-link:hover { color: var(--text); background: var(--accent-soft); }
.nav-toggle {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  color: var(--text-2);
  transition: color 180ms ease, background-color 180ms ease;
}
.nav-toggle:hover { color: var(--text); background: var(--accent-soft); }
.nav-toggle .icon-sun { display: none; }
:root[data-theme="light"] .nav-toggle .icon-sun { display: block; }
:root[data-theme="light"] .nav-toggle .icon-moon { display: none; }
@media (max-width: 380px) {
  .nav-pill { padding-left: 12px; }
  .nav-brand { padding-right: 4px; }
  .nav-link { padding: 8px 7px; }
}

/* Nav over the dark hero — on-dark glass regardless of page theme */
.nav-pill.over-hero {
  background: color-mix(in oklab, #0E0E0F 72%, transparent);
  border-color: rgba(242, 239, 231, 0.16);
  box-shadow: 0 12px 40px -18px rgba(0, 0, 0, 0.6), 0 1px 0 0 rgba(255, 255, 255, 0.05) inset;
}
@supports not (color: color-mix(in oklab, red, blue)) { .nav-pill.over-hero { background: #0E0E0F; } }
.nav-pill.over-hero .nav-brand { color: #F2EFE7; }
.nav-pill.over-hero .nav-brand::after { background: rgb(var(--ray-amber)); }
.nav-pill.over-hero .nav-divider { background: rgba(242, 239, 231, 0.16); }
.nav-pill.over-hero .nav-link,
.nav-pill.over-hero .nav-toggle { color: rgba(242, 239, 231, 0.74); }
.nav-pill.over-hero .nav-link:hover,
.nav-pill.over-hero .nav-toggle:hover { color: #F2EFE7; background: rgba(255, 107, 61, 0.16); }
.nav-pill.over-hero :focus-visible { outline-color: rgb(var(--ray-amber)); }

/* ═══════════════  CINEMATIC HERO — "the spectrometer"  ═══════════════ */
.cinema-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  min-height: min(94vh, 900px);
  overflow: hidden;
  color: var(--hero-text);
  /* Volumetric depth: a faint lift around the slit, falling to a deep black at the edges. */
  background: radial-gradient(130% 120% at 91% 50%, #131316 0%, #0E0E10 42%, #08080A 100%);
}
.cinema-hero__layer { position: absolute; inset: 0; pointer-events: none; }
#hero-rays { z-index: 0; width: 100%; height: 100%; }
/* No-JS fallback: the same fan, drawn with a conic gradient (lower rays red, upper violet). */
.cinema-hero__fallback {
  z-index: 0;
  background:
    linear-gradient(90deg, transparent calc(91% - 1px), rgba(255, 252, 248, 0.55) calc(91% - 1px), rgba(255, 252, 248, 0.55) calc(91% + 1px), transparent calc(91% + 1px)) 0 0 / 100% 100% no-repeat,
    radial-gradient(40% 50% at 91% 50%, rgba(255, 250, 245, 0.06), transparent 70%),
    conic-gradient(from 240deg at 91% 50%,
      transparent 0deg,
      rgba(255, 107, 61, 0.13) 3deg, transparent 7deg,
      rgba(var(--ray-amber), 0.13) 12deg, transparent 16deg,
      rgba(var(--ray-green), 0.13) 23deg, transparent 27deg,
      rgba(var(--ray-cyan), 0.13) 33deg, transparent 37deg,
      rgba(var(--ray-indigo), 0.12) 44deg, transparent 48deg,
      rgba(var(--ray-violet), 0.11) 54deg, transparent 58deg,
      transparent 360deg);
  -webkit-mask:
    linear-gradient(90deg, transparent 12%, #000 55%, #000 92%, transparent 100%),
    linear-gradient(180deg, transparent 12%, #000 22%, #000 80%, transparent 90%);
  -webkit-mask-composite: source-in;
  mask:
    linear-gradient(90deg, transparent 12%, #000 55%, #000 92%, transparent 100%),
    linear-gradient(180deg, transparent 12%, #000 22%, #000 80%, transparent 90%);
  mask-composite: intersect;
  transition: opacity 600ms ease;
}
.cinema-hero.js-rays .cinema-hero__fallback { opacity: 0; }
.cinema-hero__grain {
  z-index: 1;
  opacity: 0.045;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 170px 170px;
}
@media (prefers-reduced-motion: no-preference) {
  .cinema-hero__grain { animation: grain-shift 6s steps(6) infinite; }
}
@keyframes grain-shift {
  0%   { background-position: 0 0; }        20% { background-position: -28px 12px; }
  40%  { background-position: 18px -22px; } 60% { background-position: -12px 24px; }
  80%  { background-position: 24px 14px; }  100% { background-position: 0 0; }
}

.cinema-hero__inner {
  position: relative; z-index: 3;
  width: 100%; max-width: var(--wrap); margin: 0 auto;
  padding: 6.5rem var(--gutter) 1.4rem;
  display: flex; flex-direction: column;
}
@media (min-width: 768px) { .cinema-hero__inner { padding-top: 7.5rem; padding-bottom: 1.6rem; } }

.hero-spacer-top { flex: 1.7 1 0; min-height: 3.25rem; }
.hero-spacer-bot { flex: 1 1 0; min-height: 1.75rem; }

.hero-kicker {
  display: inline-flex; align-items: center; gap: 12px;
  margin-bottom: 1.7rem;
  font: 400 0.7rem/1.2 var(--font-mono);
  letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(242, 239, 231, 0.64);
}
.hero-kicker::before { content: ""; width: 32px; height: 1px; background: var(--spectrum); flex: none; }
@media (max-width: 480px) { .hero-kicker { font-size: 0.64rem; letter-spacing: 0.12em; gap: 10px; } .hero-kicker::before { width: 22px; } }

.hero-headline {
  margin: 0; max-width: 15ch;
  font-family: var(--font-display); font-weight: 470;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(3rem, 8vw, 6.2rem);
  line-height: 0.9; letter-spacing: -0.032em;
  /* Subtle top-lit sheen — the type feels physically under the light. */
  background: linear-gradient(176deg, #FFFDF8 0%, #F1ECE0 52%, #CFC9BB 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-wrap: balance;
  padding-bottom: 0.06em; /* room for the descender of "reality." */
}
.lit-word {
  font-style: italic; font-weight: 420;
  font-variation-settings: "opsz" 144, "SOFT" 60;
  background: linear-gradient(100deg, rgb(var(--ray-amber)) 0%, #FF8A5F 40%, rgb(var(--ray-violet)) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-right: 0.06em; /* the italic overhang is not clipped */
}
@media (prefers-reduced-motion: no-preference) {
  .lit-word { animation: lit-drift 9s ease-in-out infinite; }
}
@keyframes lit-drift { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

.hero-intro {
  margin-top: 1.6rem; max-width: 34rem;
  font-family: var(--font-body); font-weight: 400;
  font-size: 1.16rem; line-height: 1.55;
  color: rgba(242, 239, 231, 0.76);
  text-wrap: pretty;
}
.hero-intro strong { color: var(--hero-text); font-weight: 560; }

.hero-cta { margin-top: 2rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1.6rem; }
.hero-link {
  position: relative; padding-bottom: 7px;
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 0.78rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--hero-text);
}
.hero-link .arrow { display: inline-block; transition: transform 220ms ease; }
.hero-link:hover .arrow, .hero-link:focus-visible .arrow { transform: translateX(4px); }
.hero-link::before, .hero-link::after { content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%; }
.hero-link::before { background: rgba(242, 239, 231, 0.24); }
.hero-link::after {
  background: linear-gradient(90deg, rgb(var(--ray-amber)), rgb(var(--ray-rose)), rgb(var(--ray-violet)), rgb(var(--ray-cyan)));
  transform: scaleX(0); transform-origin: left; transition: transform 320ms cubic-bezier(.2, .7, .1, 1);
}
.hero-link:hover::after, .hero-link:focus-visible::after { transform: scaleX(1); }
.hero-link--muted { color: rgba(242, 239, 231, 0.66); }
.hero-link--muted::before { background: rgba(242, 239, 231, 0.14); }
.hero-link--muted:hover { color: var(--hero-text); }
.cinema-hero :focus-visible { outline-color: rgb(var(--ray-amber)); }

.hero-credits {
  border-top: 1px solid rgba(242, 239, 231, 0.10);
  padding-top: 1.4rem;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem;
  font: 400 0.72rem/1.4 var(--font-mono);
  font-variant-numeric: tabular-nums lining-nums;
}
.hero-credits dt { color: rgba(242, 239, 231, 0.6); text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.66rem; }
.hero-credits dd { color: rgba(242, 239, 231, 0.9); margin-top: 6px; }
@media (max-width: 640px) { .hero-credits { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem 1rem; } }

.hero-lambda {
  position: absolute; right: 16px; top: 50%; z-index: 3;
  transform: translateY(-50%); writing-mode: vertical-rl; text-orientation: mixed;
  font: 400 0.66rem/1 var(--font-mono); letter-spacing: 0.22em;
  color: rgba(242, 239, 231, 0.32); pointer-events: none;
}
@media (max-width: 900px) { .hero-lambda { display: none; } }

.hero-horizon {
  position: absolute; left: 0; right: 0; bottom: 0; height: 1px; z-index: 3; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgb(var(--ray-indigo)), rgb(var(--ray-violet)), rgb(var(--ray-green)), rgb(var(--ray-amber)), transparent);
  opacity: 0.4;
}

/* Dawn onset — in dark theme the page emerges from the hero; light theme keeps a crisp plate edge. */
.section-dawn::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 140px; z-index: 0; pointer-events: none;
  background: linear-gradient(180deg, #09090B, transparent);
}
:root[data-theme="light"] .section-dawn::before { display: none; }
.section-dawn > * { position: relative; z-index: 1; }
.section-dawn .sigil { color: rgb(var(--ray-violet)); }
:root[data-theme="light"] .section-dawn .sigil { color: var(--accent); }

/* ───── Sections ───── */
.section { position: relative; border-top: 1px solid var(--rule); }
.section.section-dawn { border-top: 0; }
.section > .wrap { position: relative; padding-block: 80px; }
@media (min-width: 768px) { .section > .wrap { padding-block: 112px; } }
.section--elev { background: var(--bg-elev); }

.section-head { margin-bottom: 48px; }
@media (min-width: 768px) { .section-head { margin-bottom: 64px; } }
.section-head--split { display: grid; gap: 24px; }
@media (min-width: 900px) {
  .section-head--split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); column-gap: 40px; align-items: end; }
}

.eyebrow {
  display: inline-flex; align-items: baseline; gap: 10px;
  font: 400 0.7rem/1.2 var(--font-mono);
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--text-3);
}
.sigil {
  font-family: var(--font-display); font-style: italic; font-weight: 400;
  font-variation-settings: "SOFT" 80;
  font-size: 1.6rem; line-height: 1; letter-spacing: -0.02em; text-transform: none;
  color: var(--accent);
  transform: translateY(2px);
}
.section-title {
  margin-top: 20px;
  font-family: var(--font-display); font-weight: 480;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.04; letter-spacing: -0.022em;
  text-wrap: balance;
}
.section-title em {
  font-style: italic; font-weight: 420;
  font-variation-settings: "opsz" 144, "SOFT" 60;
  color: var(--text-2);
}
.section-lede { font-size: 1.05rem; line-height: 1.6; color: var(--text-2); max-width: 36rem; text-wrap: pretty; }
.lede-link { margin-top: 16px; }
.text-link {
  display: inline-flex; align-items: center; gap: 6px;
  font: 400 0.74rem/1.4 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-2);
  transition: color 180ms ease;
}
.text-link:hover { color: var(--accent); }

/* ───── Spectral marks ───── */
.emission {
  display: inline-block; flex: none;
  width: 18px; height: 2px; border-radius: 2px;
  background: color-mix(in oklab, rgb(var(--line)) var(--line-mix), var(--text));
  box-shadow: 0 0 10px rgba(var(--line), 0.55);
  vertical-align: middle;
}
:root[data-theme="light"] .emission { box-shadow: none; }
.spectral-seam {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: min(880px, 92%); height: 1px;
  background: var(--spectrum); opacity: 0.7;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 82%, transparent);
}

/* ───── Essays: editorial entry list ───── */
.entry { position: relative; border-top: 1px solid var(--rule); }
.entry:last-child { border-bottom: 1px solid var(--rule); }
.entry--empty { padding: 40px 0; font: 0.85rem var(--font-mono); color: var(--text-3); }
.entry-link { display: grid; gap: 0.85rem; padding: 2rem 0; }
.entry--lead .entry-link { padding: 2.5rem 0 2.7rem; }
.entry-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 4px 10px;
  font: 400 0.7rem/1.5 var(--font-mono);
  color: var(--text-3); letter-spacing: 0.02em;
}
.entry-meta > * + *::before { content: "·"; margin-right: 10px; color: var(--text-4); }
.entry-issue { color: var(--accent); letter-spacing: 0.1em; }
.entry-tag { display: inline-flex; align-items: center; text-transform: uppercase; letter-spacing: 0.16em; color: var(--text-2); }
.entry-tag .emission { margin-right: 8px; }
.entry-body { display: flex; flex-direction: column; gap: 0.55rem; }
.entry-title {
  font-family: var(--font-display); font-weight: 480;
  font-variation-settings: "SOFT" 30;
  font-size: clamp(1.4rem, 2.3vw, 1.85rem);
  line-height: 1.15; letter-spacing: -0.012em;
  max-width: 30ch;
  text-wrap: balance;
  transition: color 180ms ease;
}
.entry--lead .entry-title {
  font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 20;
  font-size: clamp(1.9rem, 3.4vw, 2.75rem);
  line-height: 1.06; letter-spacing: -0.022em;
  max-width: 22ch;
}
.entry-dek { font-size: 1.04rem; line-height: 1.55; color: var(--text-2); max-width: 60ch; text-wrap: pretty; }
.entry--lead .entry-dek { font-size: 1.14rem; line-height: 1.52; max-width: 56ch; }
.entry-readmore {
  margin-top: 0.6rem;
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 0.72rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-3);
  transition: color 180ms ease;
}
.entry-readmore .arrow { display: inline-block; transition: transform 220ms ease; }
.entry-link:hover .entry-title { color: var(--accent); }
.entry-link:hover .entry-readmore { color: var(--text); }
.entry-link:hover .entry-readmore .arrow { transform: translateX(4px); }
@media (min-width: 900px) {
  .entry-link { grid-template-columns: 10.5rem minmax(0, 1fr) 12.5rem; column-gap: 40px; align-items: start; }
  .entry-meta { flex-direction: column; align-items: flex-start; gap: 7px; padding-top: 0.5rem; }
  .entry-meta > * + *::before { content: none; }
  .entry--lead .entry-meta { padding-top: 0.9rem; }
  .result--list { padding-top: 0.5rem; }
  .entry--lead .result--list { padding-top: 0.9rem; }
}

/* ───── Measured result — an instrument readout ───── */
.result { display: grid; gap: 7px; align-content: start; }
.result-k {
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 0.62rem/1 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-3);
}
.result-k::before {
  content: ""; width: 14px; height: 2px; border-radius: 2px;
  background: color-mix(in oklab, rgb(var(--line)) var(--line-mix), var(--text));
  box-shadow: 0 0 8px rgba(var(--line), 0.6);
}
:root[data-theme="light"] .result-k::before { box-shadow: none; }
.result-v {
  font-family: var(--font-display); font-weight: 460;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: 2rem; line-height: 1; letter-spacing: -0.02em;
  white-space: nowrap; color: var(--text);
}
.result-arrow { margin: 0 0.22em; font-family: var(--font-mono); font-size: 0.62em; vertical-align: 0.16em; color: var(--text-3); }
.result-note { font: 400 0.68rem/1.5 var(--font-mono); color: var(--text-3); max-width: 26ch; }
.nowrap { white-space: nowrap; }
@media (max-width: 899px) { .hide-sm { display: none; } .result--list { margin-top: 10px; } }
.result--post { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--rule); }
.result--post .result-v { font-size: 2.4rem; }
.result--post .result-note { max-width: none; }

/* ───── Selected work ───── */
.card-kicker {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px 10px;
  font: 400 0.7rem/1.3 var(--font-mono);
  color: var(--text-3); letter-spacing: 0.04em;
}
.card-kicker__label { color: var(--accent); text-transform: uppercase; letter-spacing: 0.16em; }
.card-year { margin-left: auto; }
.tags {
  display: flex; flex-wrap: wrap; row-gap: 2px;
  margin-top: 24px;
  font: 400 0.7rem/1.6 var(--font-mono); color: var(--text-3);
}
.tags li { white-space: nowrap; }
.tags li + li::before { content: "·"; margin: 0 9px; color: var(--text-4); }

.flagship {
  position: relative; overflow: hidden;
  border: 1px solid var(--border); border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: border-color 220ms ease;
}
.flagship::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: var(--spectrum); opacity: 0.8;
}
.flagship:hover { border-color: var(--border-strong); }
.flagship-link { display: grid; gap: 32px; padding: 28px 24px; }
@media (min-width: 900px) {
  .flagship-link { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 48px; padding: 44px; }
}
.flagship-title {
  margin-top: 26px;
  font-family: var(--font-display); font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(1.9rem, 3.4vw, 2.6rem);
  line-height: 1.05; letter-spacing: -0.022em;
  transition: color 180ms ease;
}
.flagship-desc { margin-top: 14px; font-size: 1.1rem; line-height: 1.55; color: var(--text-2); max-width: 50ch; text-wrap: pretty; }
.flagship-cta {
  margin-top: 26px;
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 0.74rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text);
}
.flagship-cta .arrow { display: inline-block; transition: transform 220ms ease, color 220ms ease; }
.flagship:hover .flagship-title { color: var(--accent); }
.flagship:hover .flagship-cta .arrow { color: var(--accent); transform: translate(2px, -2px); }
.flagship-spec { display: flex; flex-direction: column; gap: 18px; }
@media (min-width: 900px) { .flagship-spec { border-left: 1px solid var(--rule); padding-left: 40px; } }
.spec-title { font: 400 0.66rem/1 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-3); }
.spec-list { border-top: 1px solid var(--rule); }
.spec-list li {
  display: flex; gap: 14px; align-items: baseline;
  padding: 13px 0; border-bottom: 1px solid var(--rule);
  font: 400 0.8rem/1.45 var(--font-mono); color: var(--text);
}
.spec-num { color: var(--text-3); font-size: 0.68rem; }
.spec-facts {
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 10px 20px;
  margin-top: auto;
  font: 400 0.76rem/1.45 var(--font-mono);
}
.spec-facts div { display: contents; }
.spec-facts dt { color: var(--text-3); text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.64rem; padding-top: 2px; }
.spec-facts dd { color: var(--text-2); }

.card-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; margin-top: 16px; }
@media (min-width: 768px) { .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 20px; } }
.card {
  position: relative; overflow: hidden;
  border: 1px solid var(--border); border-radius: 12px;
  background: var(--surface);
  transition: border-color 220ms ease, transform 220ms ease, box-shadow 220ms ease;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgb(var(--line)), transparent);
  opacity: 0; transition: opacity 260ms ease;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); box-shadow: var(--shadow); }
.card:hover::before { opacity: 0.9; }
.card-link { display: flex; flex-direction: column; height: 100%; padding: 26px 24px 24px; }
@media (min-width: 768px) { .card-link { padding: 28px 28px 26px; } }
.card .emission { width: 14px; }
.card-title {
  margin-top: 24px;
  font-family: var(--font-display); font-weight: 500;
  font-variation-settings: "SOFT" 30;
  font-size: 1.45rem; line-height: 1.15; letter-spacing: -0.012em;
  transition: color 180ms ease;
}
.card-arrow {
  display: inline-block; margin-left: 2px;
  font: 400 1rem/1 var(--font-mono); color: var(--text-3);
  transition: transform 220ms ease, color 220ms ease;
}
.card:hover .card-title { color: var(--accent); }
.card:hover .card-arrow { color: var(--accent); transform: translate(2px, -2px); }
.card-desc { margin-top: 10px; font-size: 1.02rem; line-height: 1.55; color: var(--text-2); text-wrap: pretty; }
.card .tags { margin-top: auto; padding-top: 22px; }

.project-index { margin-top: 64px; }
.project-index ul { list-style: none; margin: 0; padding: 0; }
.project-index__title {
  padding-bottom: 14px; border-bottom: 1px solid var(--rule-strong);
  font: 400 0.7rem/1 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-3);
}
.project-index li a {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 16px; align-items: baseline;
  margin: 0 -12px; padding: 16px 12px;
  border-bottom: 1px solid var(--rule);
  border-radius: 6px;
  transition: background-color 180ms ease;
}
.project-index li a:hover { background: var(--accent-soft); }
.index-name {
  font-family: var(--font-display); font-weight: 500;
  font-variation-settings: "SOFT" 30;
  font-size: 1.1rem; letter-spacing: -0.006em;
  transition: color 180ms ease;
}
.index-desc { grid-column: 1 / -1; font-size: 0.98rem; line-height: 1.5; color: var(--text-2); }
.index-year { grid-row: 1; grid-column: 2; font: 400 0.72rem/1.5 var(--font-mono); color: var(--text-3); }
.index-stack, .index-arrow { display: none; }
.project-index li a:hover .index-name { color: var(--accent); }
@media (min-width: 900px) {
  .project-index li a { grid-template-columns: minmax(0, 12rem) minmax(0, 1fr) minmax(0, 12rem) 2.6rem 1rem; gap: 24px; }
  .index-desc { grid-column: auto; }
  .index-stack { display: block; font: 400 0.7rem/1.6 var(--font-mono); color: var(--text-3); }
  .index-year { grid-row: auto; grid-column: auto; text-align: right; }
  .index-arrow { display: block; font-family: var(--font-mono); color: var(--text-3); transition: transform 220ms ease, color 220ms ease; }
  .project-index li a:hover .index-arrow { color: var(--accent); transform: translate(2px, -2px); }
}

/* ───── Experience timeline ───── */
.timeline { border-top: 1px solid var(--rule); }
.timeline li { display: grid; gap: 6px; padding: 26px 0; border-bottom: 1px solid var(--rule); }
@media (min-width: 768px) {
  .timeline li { grid-template-columns: minmax(0, 2fr) minmax(0, 4fr) minmax(0, 6fr); column-gap: 28px; align-items: baseline; }
}
.tl-when { font: 400 0.76rem/1.6 var(--font-mono); color: var(--text-3); }
.tl-when .now { color: var(--accent); }
.tl-role {
  font-family: var(--font-display); font-weight: 500;
  font-variation-settings: "SOFT" 30;
  font-size: 1.18rem; line-height: 1.3; letter-spacing: -0.006em;
}
.tl-org { margin-top: 2px; font-size: 0.96rem; color: var(--text-2); }
.tl-desc { font-size: 1rem; line-height: 1.55; color: var(--text-2); text-wrap: pretty; }

/* ───── Contact ───── */
.contact { overflow: hidden; }
.contact-title {
  margin-top: 20px; max-width: 14ch;
  font-family: var(--font-display); font-weight: 480;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(2.4rem, 6.4vw, 4.8rem);
  line-height: 1; letter-spacing: -0.028em;
  text-wrap: balance;
}
.contact-title em { font-style: italic; font-weight: 420; font-variation-settings: "opsz" 144, "SOFT" 60; color: var(--accent); }
.contact-lede { margin-top: 32px; max-width: 38rem; font-size: 1.12rem; line-height: 1.55; color: var(--text-2); text-wrap: pretty; }
.contact-lede strong { color: var(--text); font-weight: inherit; }
.contact-actions { margin-top: 40px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.button {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 20px; border-radius: 8px;
  background: var(--accent); color: var(--accent-ink);
  border: 1px solid transparent;
  font: 500 0.78rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}
.button:hover { background: var(--accent-2); }
.button .arrow { display: inline-block; transition: transform 220ms ease; }
.button:hover .arrow { transform: translateX(3px); }
.button--email { text-transform: none; letter-spacing: 0; font-size: 0.86rem; padding: 14px 20px; }
.button--ghost { background: transparent; color: var(--text-2); border-color: var(--border-strong); }
.button--ghost:hover { background: transparent; color: var(--text); border-color: var(--text-3); }
.button.is-done { color: var(--accent); border-color: var(--accent); }
.social {
  margin-top: 80px; padding-top: 32px;
  border-top: 1px solid var(--rule);
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px;
  font: 400 0.78rem/1.4 var(--font-mono);
}
@media (min-width: 768px) { .social { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.social a { display: flex; flex-direction: column; gap: 6px; }
.social-k { color: var(--text-3); text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.66rem; }
.social-v { color: var(--text); transition: color 180ms ease; }
.social a:hover .social-v { color: var(--accent); }

/* ───── Colophon ───── */
.colophon { font: 400 0.72rem/1.6 var(--font-mono); color: var(--text-3); }
.colophon::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: var(--spectrum); opacity: 0.35;
}
.colophon a { color: var(--text-2); text-decoration: underline; text-decoration-color: var(--rule-strong); text-underline-offset: 3px; transition: color 180ms ease; }
.colophon a:hover { color: var(--accent); }
.colophon-top { display: grid; gap: 12px 40px; padding-block: 40px 20px; align-items: baseline; }
.colophon-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px;
  padding-bottom: 32px; font-size: 0.68rem; letter-spacing: 0.02em;
}
@media (min-width: 720px) {
  .colophon-top { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .colophon-mid { text-align: center; }
  .colophon-end { text-align: right; }
}
.colophon-mark {
  font-family: var(--font-display); font-style: italic; font-weight: 420;
  font-variation-settings: "SOFT" 60;
  font-size: 1rem; line-height: 1; color: var(--text-2);
}

/* ═══════════════  POST PAGE  ═══════════════ */
.read-progress {
  position: fixed; top: 0; left: 0; z-index: 60;
  width: 100%; height: 2px;
  background: var(--spectrum);
  transform: scaleX(0); transform-origin: 0 50%;
  pointer-events: none;
}
.post-header { position: relative; overflow: hidden; border-bottom: 1px solid var(--rule); }
.post-header .wrap { position: relative; padding-top: 124px; padding-bottom: 40px; }
@media (min-width: 768px) { .post-header .wrap { padding-top: 140px; } }
.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  font: 400 0.72rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-3);
  transition: color 180ms ease;
}
.back-link .arrow { display: inline-block; transition: transform 220ms ease; }
.back-link:hover { color: var(--accent); }
.back-link:hover .arrow { transform: translateX(-3px); }
.post-meta {
  margin-top: 40px;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px;
  font: 400 0.72rem/1.5 var(--font-mono); letter-spacing: 0.02em;
  color: var(--text-3);
}
.post-meta__issue { color: var(--accent); letter-spacing: 0.1em; }
.post-meta__tag { color: var(--text-2); text-transform: uppercase; letter-spacing: 0.16em; }
.post-meta .sep { color: var(--text-4); }
.post-title {
  margin-top: 22px; max-width: 22ch;
  font-family: var(--font-display); font-weight: 480;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(2.1rem, 5.2vw, 3.4rem);
  line-height: 1.06; letter-spacing: -0.022em;
  text-wrap: balance;
}
.post-dek { margin-top: 26px; max-width: 38rem; font-size: 1.18rem; line-height: 1.55; color: var(--text-2); text-wrap: pretty; }
.byline {
  margin-top: 36px;
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-style: italic; font-weight: 440;
  font-variation-settings: "SOFT" 60;
  font-size: 0.95rem; color: var(--text-2);
}
.byline-rule { width: 24px; height: 1px; background: var(--accent); flex: none; }

/* Calibrated 380–740 nm scale; the post's topic is the marked line. */
.scale {
  position: relative; height: 46px; margin-top: 40px;
  font: 400 0.6rem/1 var(--font-mono); letter-spacing: 0.06em; color: var(--text-3);
}
.scale::before { content: ""; position: absolute; left: 0; right: 0; top: 30px; height: 1px; background: var(--rule-strong); }
.scale-ticks {
  position: absolute; left: 0; right: 0; top: 25px; height: 5px;
  border-right: 1px solid var(--rule-strong);
  background: repeating-linear-gradient(90deg, var(--rule-strong) 0 1px, transparent 1px 100%) 0 0 / calc(100% / 18) 100%;
}
.scale-major { position: absolute; top: 20px; width: 1px; height: 10px; background: var(--text-3); }
.scale-major span { position: absolute; top: 16px; left: 0; transform: translateX(-50%); }
.scale-marker {
  position: absolute; left: var(--pos); top: 2px; width: 2px; height: 29px; margin-left: -1px; border-radius: 2px;
  background: color-mix(in oklab, rgb(var(--line)) var(--line-mix), var(--text));
  box-shadow: 0 0 12px rgba(var(--line), 0.75);
}
:root[data-theme="light"] .scale-marker { box-shadow: none; }
.scale-readout {
  position: absolute; left: var(--pos); top: 2px; margin-left: 10px;
  white-space: nowrap; color: var(--text-2); letter-spacing: 0.08em;
}
.scale-tag { text-transform: uppercase; letter-spacing: 0.14em; }
.scale--flip .scale-readout { margin-left: 0; transform: translateX(calc(-100% - 10px)); }

.post-body .wrap { padding-block: 56px 96px; }
@media (min-width: 768px) { .post-body .wrap { padding-block: 72px 112px; } }

/* ───── Prose ───── */
.prose {
  max-width: 64ch;
  font-family: var(--font-body); font-weight: 420;
  font-size: 1.18rem; line-height: 1.7;
  color: var(--text-body);
  overflow-wrap: break-word;
}
@media (max-width: 640px) { .prose { font-size: 1.1rem; } }
.prose > * + * { margin-top: 1.35em; }
.prose :is(h2, h3, h4) + * { margin-top: 0.7em; }
.prose p, .prose li { text-wrap: pretty; font-variant-numeric: lining-nums proportional-nums; }
.prose > p:first-child::first-letter {
  float: left;
  margin: 0.08em 0.09em 0 0;
  font-family: var(--font-display); font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: 3.55em; line-height: 0.8;
  color: var(--accent);
}
@supports (initial-letter: 3) or (-webkit-initial-letter: 3) {
  .prose > p:first-child::first-letter {
    float: none; margin: 0 0.1em 0 0;
    -webkit-initial-letter: 3; initial-letter: 3;
    font-size: inherit; line-height: inherit;
  }
}
.prose h2, .prose h3, .prose h4 {
  position: relative;
  font-family: var(--font-display); font-weight: 520;
  font-variation-settings: "SOFT" 20;
  color: var(--text);
  text-wrap: balance;
}
.prose h2 { margin-top: 2.3em; font-size: 1.75rem; line-height: 1.18; letter-spacing: -0.012em; }
.prose h3 { margin-top: 1.9em; font-size: 1.3rem; line-height: 1.25; letter-spacing: -0.006em; }
.prose h4 { margin-top: 1.6em; font-size: 1.08rem; line-height: 1.3; }
.prose a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--rule-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: text-decoration-color 220ms ease, color 220ms ease;
}
.prose a:hover { color: var(--accent); text-decoration-color: var(--accent); }
.prose a.anchor {
  margin-left: 0.3em;
  font-style: italic; font-weight: 400;
  color: var(--accent); text-decoration: none;
  opacity: 0; transition: opacity 160ms ease;
}
.prose :is(h2, h3, h4):hover .anchor, .prose a.anchor:focus-visible { opacity: 0.85; }
@media (min-width: 900px) { .prose a.anchor { position: absolute; left: -1.1em; top: 0; margin: 0; } }
@media (hover: none) { .prose a.anchor { display: none; } }
.prose strong, .prose b { color: var(--text); font-weight: 600; }
.prose em { font-style: italic; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 0.12em 0.42em;
  border-radius: 4px;
  color: var(--inline-code);
}
.prose .highlight { position: relative; }
.prose pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-left: 2px solid var(--accent);
  border-radius: 6px;
  padding: 1.15em 1.35em;
  overflow-x: auto;
  font: 400 0.86rem/1.65 var(--font-mono);
  color: var(--text);
  tab-size: 4;
}
@media (max-width: 640px) { .prose pre { font-size: 0.8rem; padding: 1em 1.1em; } }
.prose pre code {
  background: transparent; border: 0; padding: 0; border-radius: 0;
  color: inherit; font-size: inherit;
  font-variant-ligatures: contextual;
}
/* Syntax tokens (Pygments class names) in the site palette */
.highlight :is(.c, .ch, .cm, .c1, .cs, .cpf, .sd) { color: var(--syn-comment); font-style: italic; }
.highlight :is(.cp, .gp) { color: var(--syn-comment); }
.highlight :is(.k, .kc, .kd, .kn, .kp, .kr, .ow, .nt) { color: var(--syn-keyword); }
.highlight :is(.s, .sa, .sb, .sc, .dl, .s2, .se, .sh, .si, .sx, .sr, .s1, .ss, .l, .ld) { color: var(--syn-string); }
.highlight :is(.m, .mb, .mf, .mh, .mi, .il, .mo, .nd) { color: var(--syn-number); }
.highlight :is(.nb, .bp, .ne, .na, .fm) { color: var(--syn-builtin); }
.highlight :is(.kt, .nc, .nn) { color: var(--syn-type); }
.highlight .nf { color: var(--text); font-weight: 500; }
.highlight :is(.o, .p) { color: var(--syn-op); }
.highlight .go { color: var(--text-2); }
.highlight :is(.gh, .gu) { color: var(--syn-keyword); font-weight: 600; }
.highlight :is(.gd, .gr, .gt) { color: var(--syn-del); }
.highlight .gi { color: var(--syn-ins); }
.highlight .ge { font-style: italic; }
.highlight .gs { font-weight: 600; }
.highlight .hll { background: var(--accent-soft); display: block; }

.code-copy {
  position: absolute; top: 8px; right: 8px;
  padding: 6px 9px; border-radius: 6px;
  border: 1px solid var(--code-border);
  background: var(--bg);
  color: var(--text-3);
  font: 400 0.64rem/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase;
  opacity: 0;
  transition: opacity 160ms ease, color 160ms ease, border-color 160ms ease;
}
.prose .highlight:hover .code-copy, .code-copy:focus-visible, .code-copy.is-done { opacity: 1; }
@media (hover: none) { .code-copy { opacity: 1; } }
.code-copy:hover { color: var(--text); border-color: var(--border-strong); }
.code-copy.is-done { color: var(--accent); }
.prose blockquote {
  border-left: 2px solid var(--accent);
  padding-left: 1.4em;
  color: var(--text-2);
  font-style: italic;
  font-size: 1.1em; line-height: 1.55;
}
.prose blockquote > * + * { margin-top: 0.8em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose ul > li { list-style: disc; }
.prose ol > li { list-style: decimal; }
.prose li::marker { color: var(--accent); }
.prose li + li { margin-top: 0.45em; }
.prose li > p + p { margin-top: 0.6em; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin-block: 3em; }
.prose img { border-radius: 6px; border: 1px solid var(--rule); }
.prose figure figcaption { margin-top: 0.6em; font: 400 0.78rem/1.5 var(--font-mono); color: var(--text-3); }
.table-wrap { overflow-x: auto; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.96em; }
.prose th, .prose td { border-bottom: 1px solid var(--rule); padding: 0.65em 0.85em; text-align: left; vertical-align: top; }
.prose th {
  font: 500 0.72em/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text);
  border-bottom-color: var(--rule-strong);
}
.prose .footnote-ref, .prose .footnote-backref { text-decoration: none; color: var(--accent); }
.prose .footnote { margin-top: 4em; padding-top: 1.5em; border-top: 1px solid var(--rule); font-size: 0.92rem; color: var(--text-2); }
.prose .footnote hr { display: none; }
.prose kbd {
  font: 400 0.8em var(--font-mono);
  padding: 0.1em 0.4em; border-radius: 4px;
  border: 1px solid var(--border-strong); border-bottom-width: 2px;
}

/* ───── Post end matter (aligned to the 64ch reading measure of .prose) ───── */
.post-end { max-width: 64ch; font-size: 1.18rem; }
@media (max-width: 640px) { .post-end { font-size: 1.1rem; } }
.signoff {
  margin-top: 64px; padding-top: 40px;
  border-top: 1px solid var(--rule);
  font-family: var(--font-display); font-style: italic; font-weight: 420;
  font-variation-settings: "SOFT" 60;
  font-size: 1.15rem; color: var(--text-2);
}
.signoff span { color: var(--accent); }
.author-card {
  margin-top: 36px;
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 20px; align-items: start;
  padding: 24px;
  border: 1px solid var(--border); border-radius: 12px;
  background: var(--surface);
}
.author-mark {
  position: relative;
  width: 52px; height: 52px; border-radius: 999px;
  display: grid; place-items: center;
  background: radial-gradient(120% 120% at 80% 30%, #1E1E26, #0A0A0C);
  color: #F2EFE7;
  box-shadow: inset 0 0 0 1px rgba(242, 239, 231, 0.12);
  font-family: var(--font-display); font-style: italic; font-weight: 480;
  font-variation-settings: "SOFT" 60;
  font-size: 1.2rem; letter-spacing: -0.01em;
}
.author-mark::after {
  content: ""; position: absolute; right: 10px; bottom: 15px;
  width: 4px; height: 4px; border-radius: 999px; background: rgb(var(--ray-amber));
}
.author-name { font-family: var(--font-display); font-weight: 520; font-variation-settings: "SOFT" 30; font-size: 1.12rem; }
.author-role { margin-top: 2px; font: 400 0.72rem/1.5 var(--font-mono); letter-spacing: 0.04em; color: var(--text-3); }
.author-bio { margin-top: 10px; font-size: 1rem; line-height: 1.55; color: var(--text-2); text-wrap: pretty; }
.author-links {
  margin-top: 14px;
  display: flex; flex-wrap: wrap; gap: 6px 18px;
  font: 400 0.72rem/1.4 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase;
}
.author-links a { color: var(--text-2); transition: color 180ms ease; }
.author-links a:hover, .author-links a.is-primary { color: var(--accent); }
@media (max-width: 480px) { .author-card { grid-template-columns: minmax(0, 1fr); } }
.post-nav { margin-top: 36px; display: grid; gap: 12px; }
@media (min-width: 640px) { .post-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.post-nav__item {
  display: flex; flex-direction: column; gap: 8px;
  padding: 20px 22px;
  border: 1px solid var(--border); border-radius: 12px;
  transition: border-color 200ms ease, background-color 200ms ease;
}
.post-nav__item:hover { border-color: var(--border-strong); background: var(--surface); }
.post-nav__item--next { text-align: right; }
.post-nav__item.is-empty { display: none; }
@media (min-width: 640px) { .post-nav__item.is-empty { display: block; visibility: hidden; } }
.post-nav__label { font: 400 0.68rem/1 var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); }
.post-nav__title {
  font-family: var(--font-display); font-weight: 500;
  font-variation-settings: "SOFT" 30;
  font-size: 1.08rem; line-height: 1.3; letter-spacing: -0.006em;
  text-wrap: balance;
  transition: color 180ms ease;
}
.post-nav__item:hover .post-nav__title { color: var(--accent); }

/* ═══════════════  404  ═══════════════ */
.notfound { position: relative; overflow: hidden; min-height: 78vh; display: flex; align-items: center; }
.notfound .wrap { position: relative; padding-block: 160px 96px; }
.nf-code { display: inline-flex; align-items: center; gap: 12px; font: 400 0.72rem/1 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); }
.nf-code::before { content: ""; width: 40px; height: 1px; background: var(--spectrum); }
.nf-title {
  margin-top: 24px; max-width: 16ch;
  font-family: var(--font-display); font-weight: 480;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1; letter-spacing: -0.03em;
}
.nf-title em { font-style: italic; font-weight: 420; font-variation-settings: "opsz" 144, "SOFT" 60; color: var(--text-2); }
.nf-text { margin-top: 28px; max-width: 34rem; font-size: 1.12rem; line-height: 1.6; color: var(--text-2); }
.nf-actions { margin-top: 40px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }

/* ───── Motion & print ───── */
@media (prefers-reduced-motion: reduce) {
  .card:hover { transform: none; }
}
@media print {
  :root[data-theme], :root:not([data-theme]) {
    --bg: #fff; --surface: #fff; --text: #000; --text-body: #000; --text-2: #222; --text-3: #555;
    --rule: #ccc; --code-bg: #f6f6f6; --code-border: #ddd; --accent: #000; --inline-code: #000;
  }
  body::before, .nav-pill, .read-progress, .colophon, .post-nav, .author-links,
  .code-copy, .back-link, .skip-link, .scale, .spectral-seam { display: none !important; }
  .post-header .wrap { padding-top: 0; }
  .prose { max-width: none; font-size: 11pt; }
  .prose a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; color: #555; }
  .prose pre { white-space: pre-wrap; border-left-color: #000; }
}