/* Panos Kolyvakis — site styles. No framework; light + dark (follows the system setting). */

:root {
  --bg: #faf9f6;
  --surface: #ffffff;
  --surface-2: #f3f1ec;
  --text: #1b1d22;
  --muted: #5a606c;
  --faint: #8a8f99;
  --line: #e6e2da;
  --accent: #1d5c57;
  --accent-strong: #154743;
  --accent-soft: #e3efed;
  --on-accent: #ffffff;
  --shadow: 0 1px 2px rgba(20, 22, 26, .04), 0 8px 24px -12px rgba(20, 22, 26, .12);
  --radius: 14px;
  --radius-sm: 8px;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --wrap: 1120px;
  --prose: 720px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1114;
    --surface: #161a1f;
    --surface-2: #1c2127;
    --text: #e9e7e2;
    --muted: #a3a9b3;
    --faint: #7b818b;
    --line: #272c33;
    --accent: #6cc2b6;
    --accent-strong: #8fd4ca;
    --accent-soft: #17302d;
    --on-accent: #0b1a18;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 28px -14px rgba(0, 0, 0, .6);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-strong); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent-soft); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 16px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; margin: 0; color: var(--text); }
h1 { font-size: clamp(2.3rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 600; letter-spacing: -0.01em; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px;
  background: var(--accent); color: var(--on-accent); font-family: var(--serif); font-size: 15px; font-weight: 700;
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500;
  padding: 8px 12px; border-radius: 8px; transition: color .15s ease, background-color .15s ease;
}
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav a[aria-current="page"] { color: var(--text); }
.nav .btn { margin-left: 8px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--text); border-radius: 8px; width: 40px; height: 40px; cursor: pointer; }
.nav-toggle svg { width: 20px; height: 20px; margin: auto; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text) !important; font-size: 15px; font-weight: 500;
  text-decoration: none; line-height: 1.2; transition: border-color .15s ease, transform .15s ease, background-color .15s ease;
}
.btn:hover { border-color: var(--faint); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent) !important; }
.btn-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.btn svg { width: 16px; height: 16px; flex: none; }
.btn-sm { padding: 7px 14px; font-size: 14px; }

.icon-links { display: flex; gap: 6px; }
.icon-links a {
  display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px;
  color: var(--muted); border: 1px solid var(--line); background: var(--surface);
  transition: color .15s ease, border-color .15s ease;
}
.icon-links a:hover { color: var(--accent); border-color: var(--accent); }
.icon-links svg { width: 18px; height: 18px; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 1.25fr .75fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin: 0 0 18px;
  font-size: 13.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent);
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; border-radius: 2px; }
.hero .lede { font-size: 1.2rem; color: var(--muted); max-width: 36em; margin: 20px 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.hero-actions .icon-links { margin-left: 4px; }
.portrait {
  margin: 0; position: relative; border-radius: 20px; overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--line); background: var(--surface-2);
  aspect-ratio: 4 / 5;
}
.portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 30% 30%; }
.portrait figcaption {
  position: absolute; left: 12px; right: 12px; bottom: 12px;
  padding: 8px 12px; border-radius: 10px; font-size: 13px; color: #fff;
  background: rgba(10, 14, 18, .58); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}

.facts { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); }
.facts ul { list-style: none; margin: 0; padding: 22px 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.facts li { display: flex; flex-direction: column; gap: 2px; }
.facts strong { font-family: var(--serif); font-size: 1.15rem; font-weight: 600; }
.facts span { color: var(--muted); font-size: 14px; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 36px; }
.section-head p { color: var(--muted); margin: 10px 0 0; max-width: 40em; }
.section-head .more { white-space: nowrap; font-weight: 500; text-decoration: none; }
.section-head .more::after { content: " →"; }

.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; }
.about-grid .prose p { font-size: 1.06rem; }
.about-grid > div:first-child { position: sticky; top: 110px; align-self: start; }
.skills { display: grid; gap: 18px; align-content: start; }
.skill-group h3 { font-family: var(--sans); font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); margin-bottom: 10px; }

.tags { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 0; }
.tags li {
  font-size: 13px; padding: 4px 10px; border-radius: 999px;
  background: var(--surface-2); color: var(--muted); border: 1px solid var(--line);
}

/* ---------- Projects ---------- */
.projects { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.card:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); box-shadow: var(--shadow); transform: translateY(-2px); }
.card-media { aspect-ratio: 2.4 / 1; background: var(--surface-2); border-bottom: 1px solid var(--line); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 12%; }
.card-media.is-pattern {
  display: grid; place-items: center; color: var(--accent);
  background:
    radial-gradient(120% 140% at 85% 0%, var(--accent-soft), transparent 60%),
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 22px 22px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 22px 22px,
    var(--surface-2);
}
.card-media.is-pattern svg { width: 56px; height: 56px; padding: 10px; box-sizing: content-box; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); }
.card-body { display: flex; flex-direction: column; gap: 12px; padding: 22px 22px 20px; flex: 1; }
.card-kicker { font-size: 12.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
.card h3 { font-size: 1.3rem; }
.card p { color: var(--muted); margin: 0; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 6px; }
.card-link { font-weight: 500; font-size: 15px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.card-link svg { width: 16px; height: 16px; }

/* ---------- Timeline (experience) ---------- */
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.timeline > li { display: grid; grid-template-columns: 190px 1fr; gap: 28px; padding: 26px 0; border-top: 1px solid var(--line); }
.timeline > li:first-child { border-top: 0; padding-top: 0; }
.when { color: var(--faint); font-size: 14px; font-variant-numeric: tabular-nums; padding-top: 3px; }
.role h3 { font-size: 1.2rem; margin-bottom: 4px; }
.org { color: var(--muted); font-size: 15px; margin-bottom: 12px; }
.role p { margin-bottom: .8em; }
.role ul { margin: 0 0 .8em; padding-left: 1.1em; }
.role li { margin-bottom: .35em; }
.badge { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); margin-left: 8px; vertical-align: middle; font-family: var(--sans); letter-spacing: 0; }

/* ---------- Writing list ---------- */
.posts { list-style: none; margin: 0; padding: 0; }
.posts li { border-top: 1px solid var(--line); }
.posts li:last-child { border-bottom: 1px solid var(--line); }
.posts a { display: grid; grid-template-columns: 150px 1fr auto; gap: 24px; align-items: baseline; padding: 22px 0; color: var(--text); text-decoration: none; }
.posts a:hover h3 { color: var(--accent); }
.posts time { color: var(--faint); font-size: 14px; }
.posts p { color: var(--muted); margin: 6px 0 0; }
.posts .arrow { color: var(--faint); }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.contact-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; display: grid; gap: 16px; }
.contact-row { display: grid; grid-template-columns: 26px 1fr; gap: 12px; align-items: start; }
.contact-row svg { width: 18px; height: 18px; color: var(--accent); margin-top: 3px; }
.contact-row small { display: block; color: var(--faint); font-size: 13px; }
.contact-row a { color: var(--text); text-decoration: none; }
.contact-row a:hover { color: var(--accent); }

/* ---------- Page header (inner pages) ---------- */
.page-head { padding: 64px 0 40px; border-bottom: 1px solid var(--line); }
.page-head p { color: var(--muted); font-size: 1.15rem; max-width: 40em; margin: 16px 0 0; }

.with-toc { display: grid; grid-template-columns: 220px 1fr; gap: 56px; padding: 56px 24px 96px; }
.toc { position: sticky; top: 96px; align-self: start; }
.toc p { font-size: 12.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); margin-bottom: 10px; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--line); }
.toc a { display: block; padding: 6px 0 6px 16px; margin-left: -1px; border-left: 2px solid transparent; color: var(--muted); text-decoration: none; font-size: 14.5px; }
.toc a:hover, .toc a.is-active { color: var(--text); border-left-color: var(--accent); }
.content > section { margin-bottom: 72px; scroll-margin-top: 96px; }
.content > section > h2 { margin-bottom: 28px; }

figure { margin: 24px 0 8px; }
figure img, figure video { border-radius: 12px; border: 1px solid var(--line); }
figcaption { color: var(--faint); font-size: 14px; margin-top: 10px; }

.learned { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; list-style: none; padding: 0; margin: 0; }
.learned li { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; color: var(--muted); font-size: 15px; }
.learned strong { color: var(--text); display: block; margin-bottom: 2px; font-weight: 600; }

/* ---------- Prose (blog posts) ---------- */
.prose { max-width: var(--prose); }
.post { scroll-margin-top: 96px; }
.post + .post { margin-top: 80px; padding-top: 72px; border-top: 1px solid var(--line); }
.post-meta { color: var(--faint); font-size: 14px; margin: 10px 0 28px; display: flex; gap: 10px; flex-wrap: wrap; }
.post-meta > * + *::before { content: "·"; margin-right: 10px; }
.post h2 { font-size: clamp(1.7rem, 3.2vw, 2.25rem); }
.post h3 { margin: 36px 0 12px; font-size: 1.3rem; }
.post p, .post li { font-size: 1.07rem; line-height: 1.75; }
.post blockquote { margin: 24px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--accent); color: var(--muted); font-style: italic; }
.math { overflow-x: auto; padding: 4px 0; }
pre {
  margin: 20px 0 24px; padding: 18px 20px; border-radius: 12px; overflow-x: auto;
  background: #0f1720; color: #e6edf3; border: 1px solid #1f2a36; font-size: 14px; line-height: 1.6;
}
code { font-family: var(--mono); font-size: .92em; }
:not(pre) > code { background: var(--surface-2); border: 1px solid var(--line); padding: 1px 6px; border-radius: 6px; }
pre code { font-size: 14px; background: none; border: 0; padding: 0; }
.note { background: var(--accent-soft); color: var(--text); border-radius: 12px; padding: 14px 18px; font-size: 15px; margin: 20px 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0; color: var(--faint); font-size: 14px; }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 18px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }

/* ---------- Motion ---------- */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .hero .wrap, .about-grid, .contact { grid-template-columns: 1fr; gap: 36px; }
  .about-grid > div:first-child { position: static; }
  .hero { padding-top: 40px; }
  .portrait { max-width: 380px; aspect-ratio: 1 / 1; }
  .facts ul { grid-template-columns: repeat(2, 1fr); }
  .with-toc { grid-template-columns: 1fr; gap: 24px; padding-top: 32px; }
  .toc { position: static; }
  .toc ol { display: flex; flex-wrap: wrap; gap: 6px 14px; border: 0; }
  .toc a { padding: 4px 0; border: 0; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .wrap { padding: 0 18px; }
  .with-toc { padding-left: 18px; padding-right: 18px; }
  .section { padding: 64px 0; }
  .section-head { flex-direction: column; align-items: start; }
  .projects, .learned { grid-template-columns: 1fr; }
  .timeline > li { grid-template-columns: 1fr; gap: 6px; }
  .posts a { grid-template-columns: 1fr; gap: 4px; }
  .posts .arrow { display: none; }
  .nav-toggle { display: grid; }
  .nav {
    position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 18px 16px; display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 8px; }
  .nav .btn { margin: 8px 0 0; justify-content: center; }
}

.contact-lede { color: var(--muted); font-size: 1.15rem; margin: 16px 0 28px; max-width: 32em; }
/* highlight.js adds its own box inside <pre>: keep just ours */
pre code.hljs { padding: 0; background: transparent; }

/* ---------- Case study (q-and-ai.html) ---------- */
.case-head .wrap { max-width: 900px; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 22px; color: var(--muted); font-size: 14.5px; }
.case-meta strong { color: var(--text); font-weight: 600; }
.case-body { max-width: 900px; margin: 0 auto; padding: 56px 24px 96px; }
.case-body > section { margin-bottom: 64px; scroll-margin-top: 96px; }
.case-body h2 { margin-bottom: 18px; }
.case-body h3 { margin: 28px 0 10px; }
.case-body p, .case-body li { font-size: 1.07rem; line-height: 1.75; }
.case-body ul { padding-left: 1.2em; }
.case-body li { margin-bottom: .4em; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 28px 0 8px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px; }
.stat strong { display: block; font-family: var(--serif); font-size: 1.9rem; line-height: 1.1; color: var(--text); }
.stat span { display: block; color: var(--muted); font-size: 14px; margin-top: 6px; }

.pipeline { list-style: none; margin: 24px 0; padding: 0; counter-reset: step; display: grid; gap: 12px; }
.pipeline li {
  counter-increment: step; position: relative; display: grid; grid-template-columns: 44px 1fr; gap: 16px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 0;
}
.pipeline li::before {
  content: counter(step); display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px;
  background: var(--accent-soft); color: var(--accent); font-weight: 600; font-size: 15px;
}
.pipeline strong { display: block; margin-bottom: 2px; }
.pipeline p { margin: 0; color: var(--muted); font-size: 15.5px !important; line-height: 1.6 !important; }

.results { width: 100%; border-collapse: collapse; margin: 18px 0 8px; font-size: 15px; }
.results th, .results td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.results th { font-size: 12.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--faint); font-weight: 600; }
.results td:nth-child(n+2) { font-variant-numeric: tabular-nums; white-space: nowrap; }
.results .up { color: var(--accent); font-weight: 600; }
.table-scroll { overflow-x: auto; }
.fine { color: var(--faint); font-size: 14px !important; }

/* Screenshot placeholder: replace the whole <figure class="shot placeholder"> with an <img> when the image exists */
.shot { margin: 26px 0 10px; }
.shot.placeholder > div {
  aspect-ratio: 16 / 9; border: 2px dashed var(--line); border-radius: 14px; background: var(--surface-2);
  display: grid; place-content: center; justify-items: center; gap: 8px; padding: 20px; text-align: center; color: var(--faint);
}
.shot.placeholder svg { width: 40px; height: 40px; opacity: .7; }
.shot.placeholder b { color: var(--muted); font-weight: 600; font-size: 15px; }
.shot.placeholder code { font-size: 13px; }
.shot.tall > div { aspect-ratio: 4 / 3; }
.shot-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.shot-pair .shot { margin: 0; }

.callout { border-left: 3px solid var(--accent); background: var(--surface); border-radius: 0 12px 12px 0; padding: 16px 20px; margin: 22px 0; color: var(--muted); }
.callout strong { color: var(--text); }

.post-card-list { list-style: none; margin: 0 0 8px; padding: 0; }

@media (max-width: 720px) {
  .stats { grid-template-columns: repeat(2, 1fr); }
  .shot-pair { grid-template-columns: 1fr; }
  .case-body { padding: 36px 18px 72px; }
}

/* Featured project card spans the grid and lays out side by side on wide screens */
.card-featured { grid-column: 1 / -1; flex-direction: row; }
.card-featured .card-media { aspect-ratio: auto; width: 46%; flex: none; border-bottom: 0; border-right: 1px solid var(--line); }
.card-featured .card-media:not(.is-pattern) { display: flex; align-items: center; padding: 14px; }
.card-featured .card-media img { height: auto; object-fit: contain; border-radius: 8px; border: 1px solid var(--line); }
.card-featured .card-media.is-pattern svg { width: 72px; height: 72px; }
.card-featured h3 { font-size: 1.6rem; }
@media (max-width: 720px) {
  .card-featured { flex-direction: column; }
  .card-featured .card-media { width: auto; aspect-ratio: auto; border-right: 0; border-bottom: 1px solid var(--line); }
}

/* Contents bar and architecture diagram (q-and-ai.html) */
.toc-inline { display: flex; flex-wrap: wrap; gap: 6px; margin: 32px 0 48px; padding: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.toc-inline a { font-size: 14px; color: var(--muted); text-decoration: none; padding: 5px 10px; border-radius: 8px; }
.toc-inline a:hover { color: var(--text); background: var(--surface-2); }
.diagram { margin: 24px 0 8px; padding: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; overflow-x: auto; }
.diagram svg { display: block; width: 100%; min-width: 640px; height: auto; font-family: var(--sans); }
.diagram .d-label { fill: var(--faint); font-size: 11px; font-weight: 600; letter-spacing: .08em; }
.diagram .d-box rect { fill: var(--surface-2); stroke: var(--line); stroke-width: 1.2; }
.diagram .d-box text { fill: var(--text); font-size: 13px; font-weight: 600; text-anchor: middle; }
.diagram .d-box text.d-sub, .diagram text.d-sub { fill: var(--muted); font-size: 11px; font-weight: 400; text-anchor: middle; }
.diagram .d-store rect, .diagram .d-out rect { fill: var(--accent-soft); stroke: var(--accent); }
.diagram .d-line { fill: none; stroke: var(--faint); stroke-width: 1.5; }
.diagram .d-dash { stroke-dasharray: 5 4; }
.diagram .d-arrowhead { fill: var(--faint); }
.case-body code { font-size: .88em; }
.case-body pre code { font-size: 13.5px; }

/* Illustrations for project cards without public screenshots (index.html) */
.card-media.is-illustration {
  position: relative; display: flex; align-items: center; justify-content: center; gap: 18px; padding: 38px 20px 20px;
  aspect-ratio: auto; height: 258px; container-type: inline-size;
  background: radial-gradient(120% 140% at 85% 0%, var(--accent-soft), transparent 60%), var(--surface-2);
}
.mini-code {
  margin: 0; padding: 12px 16px; font: 12px/1.5 var(--mono, ui-monospace, SFMono-Regular, Menlo, monospace);
  color: #d6dde6; background: #16181c; border-radius: 10px; box-shadow: var(--shadow); white-space: pre; overflow: hidden; max-width: 100%;
}
.mini-code .k { color: #ff9b8a; } .mini-code .n { color: #7cc4ff; } .mini-code .c { color: #7d8794; }
.mini-decision {
  display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 16px; font-size: 12px; color: var(--muted);
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow);
}
.mini-decision b { font-size: 15px; color: var(--accent); }
.mini-trace {
  width: 100%; max-width: 440px; padding: 12px 14px; font: 12px/1.4 var(--mono); color: #d6dde6;
  background: #16181c; border-radius: 10px; box-shadow: var(--shadow);
}
.mt-head { display: flex; justify-content: space-between; padding-bottom: 8px; margin-bottom: 4px; border-bottom: 1px solid #2a2e35; color: #fff; }
.mt-head span + span { color: #7d8794; }
.mt-row { display: grid; grid-template-columns: 74px 112px 1fr; align-items: center; gap: 8px; padding: 5px 0; }
.mt-name { color: #ff9b8a; } .mt-svc { color: #7d8794; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mt-track { position: relative; height: 8px; border-radius: 4px; background: #23272e; }
.mt-track i { position: absolute; top: 0; bottom: 0; border-radius: 4px; background: #5fc4b8; }
.mt-track i.t { background: #7cc4ff; }
.mini-label {
  position: absolute; top: 10px; right: 12px; font-size: 10.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--muted); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px;
}
@container (max-width: 470px) { .mini-decision { display: none; } }
@container (max-width: 380px) { .mini-code, .mini-trace { font-size: 11px; } .mt-row { grid-template-columns: 64px 92px 1fr; } }

/* "Then → now" strip on early projects (index.html) */
.ahead { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; font-size: 13.5px; line-height: 1.45; color: var(--muted); }
.ahead > div { position: relative; padding: 12px 14px; }
.ahead > div:first-child { background: var(--accent-soft); color: var(--text); }
.ahead > div + div { border-left: 1px solid var(--line); }
.ahead > div:first-child::after {
  content: "→"; position: absolute; right: -11px; top: 50%; transform: translateY(-50%); z-index: 1;
  width: 20px; height: 20px; display: grid; place-items: center; font-size: 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--line); color: var(--accent);
}
.ahead b { display: block; margin-bottom: 8px; font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }
@media (max-width: 520px) {
  .ahead { grid-template-columns: 1fr; }
  .ahead > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .ahead > div:first-child::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -11px; transform: translateX(-50%); }
}