/* Leo Neufeld · warm editorial. Shared by index + case studies. */
:root {
  --cream: #F4EEE4;
  --ink: #2A1D15;
  --cobalt: #2F5BD3;
  --ink-soft: color-mix(in srgb, var(--ink) 74%, var(--cream));
  --rule: color-mix(in srgb, var(--ink) 16%, transparent);
  --paper: color-mix(in srgb, var(--cream) 55%, #FBF8F3);

  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;

  /* modular scale ~1.333, fluid at the top end */
  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.3125rem;
  --step-2: clamp(1.5rem, 1.2rem + 1vw, 1.875rem);
  --step-3: clamp(2rem, 1.4rem + 2.4vw, 3rem);
  --step-4: clamp(2.25rem, 1.4rem + 3.2vw, 3.75rem);

  --space-section: clamp(4.5rem, 3rem + 7vw, 8.5rem);
  --gutter: clamp(1.25rem, 0.5rem + 3.5vw, 3rem);
  --radius: 6px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font: 400 var(--step-0)/1.6 var(--sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; } /* class display rules must not un-hide (#repo-link, .btn) */
img { display: block; max-width: 100%; height: auto; }
figure { margin: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
a { color: var(--cobalt); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 3px; border-radius: 2px; }

.wrap { width: 100%; max-width: 74rem; margin-inline: auto; padding-inline: var(--gutter); }

.skip {
  position: absolute; left: var(--gutter); top: -4rem; z-index: 10;
  background: var(--ink); color: var(--cream); padding: 0.5rem 0.875rem; border-radius: var(--radius);
}
.skip:focus { top: 0.75rem; }

/* ---- nav ---- */
.site-nav {
  display: flex; align-items: center; gap: 1rem clamp(0.875rem, 2.5vw, 2rem);
  padding-block: 1.5rem;
}
.site-nav__name { font: 400 var(--step-1)/1 var(--serif); color: var(--ink); text-decoration: none; }
.site-nav__links { margin-left: auto; display: flex; flex-wrap: wrap; align-items: center; row-gap: 0.25rem; gap: clamp(0.875rem, 2.5vw, 2rem); font-size: var(--step--1); }
.site-nav__links a { color: var(--ink); text-decoration: none; letter-spacing: 0.01em; display: inline-block; padding-block: 0.75rem; } /* 44px tap target */
.site-nav__links a:hover { color: var(--cobalt); }

.lang-toggle {
  font: 600 0.75rem/1 var(--sans); letter-spacing: 0.08em;
  color: var(--ink); background: transparent;
  border: 1px solid var(--rule); border-radius: 999px;
  min-height: 2.75rem; padding: 0 0.875rem; cursor: pointer; white-space: nowrap;
  transition: border-color 0.15s var(--ease-out), background-color 0.15s var(--ease-out);
}
.lang-toggle:hover { border-color: var(--ink); }
/* active language: full ink + underline; the other one recedes */
.lang-toggle span { color: color-mix(in srgb, var(--ink) 66%, var(--cream)); }
.lang-toggle[aria-pressed="false"] .lang-toggle__en,
.lang-toggle[aria-pressed="true"] .lang-toggle__de {
  color: var(--ink); text-decoration: underline; text-decoration-color: var(--cobalt);
  text-decoration-thickness: 2px; text-underline-offset: 0.3em;
}
.lang-toggle[hidden] { display: none; }

/* ---- shared bits ---- */
.kicker {
  font: 600 0.75rem/1.2 var(--sans); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--cobalt);
}
.tag {
  display: inline-block; font: 500 0.75rem/1.3 var(--sans); letter-spacing: 0.02em;
  color: var(--ink-soft); border: 1px solid var(--rule); border-radius: 999px;
  padding: 0.25rem 0.625rem;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 2.875rem; padding: 0.75rem 1.375rem; border-radius: 999px;
  font: 600 0.9375rem/1.2 var(--sans); text-decoration: none; text-align: center;
  transition: transform 0.15s var(--ease-out), background-color 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn--primary { background: var(--cobalt); color: var(--cream); }
.btn--primary:hover { background: color-mix(in srgb, var(--cobalt) 86%, var(--ink)); }
.btn--quiet { color: var(--ink); border: 1px solid color-mix(in srgb, var(--ink) 35%, transparent); }
.btn--quiet:hover { border-color: var(--ink); }
.footnote { font-size: var(--step--1); color: var(--ink-soft); }

/* ---- hero ---- */
.hero {
  display: grid; gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  padding-block: clamp(1rem, 2.5vw, 2rem) clamp(2.5rem, 4vw, 3rem);
}
.hero__title { font-size: var(--step-4); line-height: 1.06; letter-spacing: -0.015em; margin-top: 1.25rem; max-width: 18ch; }
.hero__sub { margin-top: 1.5rem; max-width: 46ch; color: var(--ink-soft); font-size: 1.125rem; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }
.hero__photo img {
  width: 100%; aspect-ratio: 5 / 6; max-height: 34rem; object-fit: cover; object-position: 50% 30%;
  border-radius: var(--radius);
}

/* ---- numbers ---- */
.stats { padding-bottom: var(--space-section); }
.stat-row {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
}
.stat {
  display: flex; flex-direction: column-reverse; justify-content: flex-end; gap: 0.5rem;
  padding: 1.75rem clamp(1rem, 2vw, 1.75rem) 1.75rem 0;
}
.stat + .stat { padding-left: clamp(1rem, 2vw, 1.75rem); border-left: 1px solid var(--rule); }
.stat__value { font: 400 clamp(2.5rem, 2rem + 2vw, 3.5rem)/1 var(--serif); color: var(--cobalt); letter-spacing: -0.02em; }
.stat__label { font-size: var(--step--1); line-height: 1.45; color: var(--ink-soft); max-width: 24ch; }
.stats .footnote { margin-top: 0.875rem; }

/* ---- sections ---- */
.section { padding-bottom: var(--space-section); }
.section-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 1rem var(--gutter);
  align-items: baseline;
  border-top: 1px solid var(--rule); padding-top: 1.5rem; margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-head h2, .offclock h2 { font-size: var(--step-3); line-height: 1.1; letter-spacing: -0.01em; }
.section-head__intro { font-size: 1.125rem; color: var(--ink-soft); max-width: 58ch; }

/* ---- work ---- */
.work-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1rem, 2.5vw, 2rem); }
.card {
  position: relative; display: flex; flex-direction: column; gap: 1rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--paper); border: 1px solid var(--rule); border-radius: var(--radius);
  transition: border-color 0.2s var(--ease-out), transform 0.3s var(--ease-out);
}
.card:hover { border-color: color-mix(in srgb, var(--ink) 40%, transparent); transform: translateY(-2px); }
.card .tag { align-self: flex-start; }
.card__title { font-size: var(--step-2); line-height: 1.15; margin-top: 0.5rem; }
.card__hook { color: var(--ink-soft); max-width: 42ch; }
.card__number { font: 400 var(--step-2)/1.1 var(--serif); color: var(--cobalt); margin-top: auto; padding-top: 1rem; }
.card__link { font-weight: 600; font-size: 0.9375rem; text-decoration: none; }
.card__link::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.card:focus-within { outline: 2px solid var(--cobalt); outline-offset: 3px; }
.card__link:focus-visible { outline: none; }

/* ---- journey ---- */
.journey { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: var(--gutter); align-items: start; }
.timeline__step {
  display: grid; grid-template-columns: minmax(0, 11rem) minmax(0, 1fr); gap: 0.5rem var(--gutter);
  padding-block: 1.75rem; border-top: 1px solid var(--rule);
}
.timeline__step:first-child { border-top: 0; padding-top: 0; }
.timeline__meta { display: flex; flex-direction: column; gap: 0.25rem; font-size: var(--step--1); color: var(--ink-soft); padding-top: 0.25rem; }
.timeline__meta span:first-child { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.timeline h3 { font-size: var(--step-1); line-height: 1.25; margin-bottom: 0.5rem; }
.timeline p:not(.timeline__meta) { max-width: 60ch; }
.timeline__numbers { margin-top: 0.75rem; font-size: 0.9375rem; color: var(--cobalt); font-weight: 500; }
.journey__photo { position: sticky; top: 2rem; }
.journey__photo img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--radius); }

/* ---- skills ---- */
.skills { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: var(--gutter); }
.skills h3 { font-size: var(--step-1); padding-bottom: 0.875rem; border-bottom: 1px solid var(--ink); }
.skills li { display: flex; flex-direction: column; align-items: flex-start; gap: 0.5rem; padding-block: 0.875rem; border-bottom: 1px solid var(--rule); }

/* ---- off the clock ---- */
.offclock { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--gutter); align-items: start; }
/* source clips the cup at the bottom edge: crop it out entirely, keep face and hands */
.offclock__photo img { width: 100%; aspect-ratio: 10 / 11; object-fit: cover; object-position: 30% 0%; border-radius: var(--radius); }
.offclock__text { padding-top: 1.5rem; border-top: 1px solid var(--rule); }
.offclock__list { margin-top: 2rem; }
.offclock__list li { padding-block: 0.875rem; border-bottom: 1px solid var(--rule); }
.offclock__list li:first-child { border-top: 1px solid var(--rule); }
.dishes { margin-top: 2.5rem; }
.dishes ul { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.75rem; }
.dishes img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: var(--radius); }
.dishes figcaption { margin-top: 0.75rem; font: italic 400 var(--step-0)/1.4 var(--serif); color: var(--ink-soft); }

/* ---- contact ---- */
.contact__body { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: var(--gutter); align-items: start; }
.contact__links li { padding-block: 1.25rem; border-bottom: 1px solid var(--rule); }
.contact__links li:first-child { padding-top: 0; }
.contact__label { display: block; font-size: var(--step--1); color: var(--ink-soft); margin-bottom: 0.25rem; }
.contact__big { font: 400 var(--step-2)/1.2 var(--serif); overflow-wrap: anywhere; }
.contact__card { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr); gap: 1.25rem; align-items: start; }
.avatar { width: 4.5rem; height: 4.5rem; border-radius: 50%; object-fit: cover; }
.contact__meta li { font-size: 0.9375rem; padding-block: 0.125rem; }
.contact__meta li:first-child { font-weight: 600; }
.contact__cv { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 0.5rem; }

.site-footer { padding-bottom: 3rem; font-size: var(--step--1); color: var(--ink-soft); }
.site-footer p { padding-top: 2rem; border-top: 1px solid var(--rule); }

/* ======== case studies (lebread-ops.html, garage-data-lake.html) ======== */
.case-hero {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 2rem var(--gutter); align-items: end;
  padding-block: clamp(1.5rem, 4vw, 3.5rem) clamp(3rem, 6vw, 5rem);
}
.case-hero h1 { font-size: var(--step-4); line-height: 1.04; letter-spacing: -0.015em; margin-top: 1rem; }
.case-hero__lede { margin-top: 1.25rem; font-size: 1.1875rem; color: var(--ink-soft); max-width: 44ch; }
.case-facts { font-size: var(--step--1); border-top: 1px solid var(--ink); }
.case-facts li { padding-block: 0.625rem; border-bottom: 1px solid var(--rule); }

.case-block {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 1rem var(--gutter);
  border-top: 1px solid var(--rule); padding-top: 1.5rem; margin-bottom: clamp(3.5rem, 2.5rem + 5vw, 6.5rem);
}
.case-block > h2 { font-size: var(--step-2); line-height: 1.15; }
.case-block--wide > :not(h2) { grid-column: 1 / -1; }
.case-body > * + * { margin-top: 1rem; }
.case-body > .fig--chart { margin-top: 2.5rem; }
.case-body p { max-width: 62ch; }
.case-list li { padding-block: 0.625rem; border-bottom: 1px solid var(--rule); }
.case-list li:first-child { border-top: 1px solid var(--rule); }
.case-pull { font: 400 var(--step-3)/1.1 var(--serif); letter-spacing: -0.01em; max-width: 20ch; }
.case-body .stat__value { font-size: clamp(2rem, 1.5rem + 1.6vw, 2.75rem); white-space: nowrap; }
.case-big { font: 400 var(--step-3)/1 var(--serif); color: var(--cobalt); letter-spacing: -0.02em; }
/* Georgia has old-style figures only (ignores lnum); Iowan/Charter honour it. shortcut: Windows still falls back to Georgia, self-host a face if that matters */
.stat__value, .card__number, .case-big { font-family: "Iowan Old Style", Charter, var(--serif); font-variant-numeric: lining-nums tabular-nums; }

/* text + figure side by side; stacks on phones */
.case-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 24rem); gap: 2rem var(--gutter); align-items: start; }

.fig { max-width: 24rem; }
.fig svg { display: block; width: 100%; height: auto; overflow: visible; }
.fig text { font-family: var(--sans); fill: var(--ink); }
.fig figcaption { margin-top: 1rem; font-size: var(--step--1); color: var(--ink-soft); }
.fig figcaption > * + * { margin-top: 0.375rem; }
.fig__title { font-weight: 600; color: var(--ink); }

.d-node { fill: var(--paper); stroke: var(--ink); stroke-width: 1.25; }
.d-tool { stroke-dasharray: 4 3; }
.d-group { fill: none; stroke: var(--rule); stroke-width: 1; }
.d-arrow { stroke: var(--ink-soft); stroke-width: 1.25; fill: none; }
.d-head { fill: var(--ink-soft); }
.d-key { stroke: var(--cobalt); stroke-width: 2; }
.d-key-fill { fill: var(--cobalt); }
.fig text.d-on-key { fill: var(--cream); font-weight: 600; }

.bar-muted { fill: color-mix(in srgb, var(--ink) 50%, var(--cream)); }
.bar-key { fill: var(--cobalt); }
.fig text.bar-value { font-weight: 600; font-variant-numeric: tabular-nums; }

.case-next { border-top: 1px solid var(--rule); padding-block: 2rem var(--space-section); }
.case-next a { font: 400 var(--step-2)/1.2 var(--serif); text-decoration: none; }
.case-next a:hover [data-i18n] { text-decoration: underline; }

/* chart sits under the −90% stat it explains (2nd of 4 columns, same inner padding) instead of hugging the left edge */
@media (min-width: 761px) {
  .case-block--wide .case-body > .fig--chart { margin-left: calc(25% + clamp(1rem, 2vw, 1.75rem)); max-width: 28rem; }
}
@media (max-width: 760px) {
  .case-hero, .case-block, .case-split { grid-template-columns: 1fr; }
  .fig { max-width: 26rem; }
}

/* ---- motion: only when JS opted in (html.motion) and the user allows it ---- */
@media (prefers-reduced-motion: no-preference) {
  .motion .reveal { opacity: 0; transform: translateY(16px); }
  .motion .reveal.is-in {
    opacity: 1; transform: none;
    transition: opacity 0.6s var(--ease-out), transform 0.7s var(--ease-out);
    transition-delay: calc(var(--i, 0) * 70ms);
  }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ---- responsive ---- */
@media (max-width: 960px) {
  .skills { grid-template-columns: 1fr 1fr; }
  .skills__group:first-child { grid-column: 1 / -1; }
  .journey { grid-template-columns: 1fr; }
  .journey__photo { position: static; order: -1; }
  .journey__photo img { aspect-ratio: 4 / 3; object-position: 50% 62%; }
}
@media (max-width: 760px) {
  .hero, .offclock, .contact__body, .work-grid, .section-head { grid-template-columns: 1fr; }
  .hero__photo { max-width: 26rem; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .stat, .stat + .stat { padding: 1.25rem 1rem 1.25rem 0; border-left: 0; }
  .stat:nth-child(even) { padding-left: 1rem; border-left: 1px solid var(--rule); }
  .stat:nth-child(n+3) { border-top: 1px solid var(--rule); }
  .skills { grid-template-columns: 1fr; }
  .timeline__step { grid-template-columns: 1fr; }
  .site-nav { flex-wrap: wrap; padding-block: 1rem 0.5rem; }
  .site-nav .lang-toggle { margin-left: auto; }
  .site-nav__links { order: 3; width: 100%; margin-left: 0; }
}
@media (max-width: 480px) {
  .site-nav__links { gap: 0.875rem; }
  .dishes ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}