/* ==========================================================================
   mauclair.io. One stylesheet, black and white only.

   White pages, black type, black bands for the hero of each case study and
   for contact. Cards invert to black on hover. Inter carries the headings
   and body; Newsreader italic is used for small accents.
   ========================================================================== */

:root {
  --white: #ffffff;
  --black: #0b0b0b;
  --g-50:  #f4f4f4;
  --g-200: #dcdcdc;
  --g-400: #9a9a9a;
  --g-600: #5e5e5e;
  --g-800: #2b2b2b;

  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: "Newsreader", Iowan Old Style, Palatino, Georgia, serif;

  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --frame:  70rem;
  --measure: 38rem;
  --rhythm: clamp(4rem, 9vw, 7rem);
  --ease: cubic-bezier(.2,.7,.2,1);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 3.75rem;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

body {
  margin: 0;
  background: var(--white);
  color: var(--g-800);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  margin: 0;
  color: var(--black);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.08;
  text-wrap: balance;
}
p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
a { color: inherit; }
strong { color: var(--black); font-weight: 600; }

::selection { background: var(--black); color: var(--white); }
:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 20;
  padding: .7rem 1rem; background: var(--black); color: var(--white);
  font-size: .85rem; text-decoration: none;
}
.skip-link:focus { left: 0; }

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

.it { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: 0; }

.label {
  margin: 0;
  color: var(--g-600);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.link {
  color: var(--black);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .2em;
}
.link:hover { text-decoration-thickness: 2px; }

/* ---------------------------------------------------------------- header */
.head {
  position: sticky; top: 0; z-index: 10;
  background: var(--white);
  border-bottom: 1px solid var(--black);
}
.head__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  height: 3.75rem;
}
.wordmark {
  display: inline-flex; align-items: center; gap: .6rem;
  color: var(--black);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark__mark {
  display: grid; place-items: center;
  width: 1.75rem; height: 1.75rem;
  background: var(--black); color: var(--white);
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: 1.05rem; letter-spacing: 0;
}
.nav { display: flex; gap: .25rem; }
.nav a {
  padding: .4rem .75rem;
  color: var(--black);
  font-size: .9rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.nav a:hover { border-color: var(--black); }
.nav a[aria-current="true"] { background: var(--black); color: var(--white); }

@media (max-width: 30rem) {
  .wordmark__name { display: none; }
  .nav a { padding: .4rem .6rem; }
}

/* ------------------------------------------------------------------ hero */
.hero {
  padding-block: clamp(3.5rem, 10vw, 7rem) clamp(3rem, 7vw, 5rem);
  border-bottom: 1px solid var(--black);
}
.hero__tags {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin: 0 0 2rem; padding: 0; list-style: none;
}
.hero__tags li {
  padding: .3rem .7rem;
  border: 1px solid var(--black);
  font-size: .8rem;
  font-weight: 500;
}
.hero__name {
  font-size: clamp(3.2rem, 11vw, 8.5rem);
  letter-spacing: -0.055em;
  line-height: .92;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}
.hero__name .it { font-size: .9em; letter-spacing: -0.02em; }
.hero__intro {
  max-width: 44rem;
  color: var(--black);
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
}

/* Quick-jump roles under the hero. */
.roles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  padding: 0; list-style: none;
  border: 1px solid var(--black);
}
.roles li + li { border-left: 1px solid var(--black); }
.roles a {
  display: flex; flex-direction: column; gap: .2rem; height: 100%;
  padding: 1.1rem 1.25rem 1.25rem;
  color: var(--black); text-decoration: none;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.roles b { font-size: 1.15rem; letter-spacing: -0.02em; }
.roles span { font-size: .85rem; color: var(--g-600); transition: color .25s var(--ease); }
.roles a:hover { background: var(--black); color: var(--white); }
.roles a:hover span { color: var(--g-200); }
@media (max-width: 44rem) {
  .roles { grid-template-columns: 1fr; }
  .roles li + li { border-left: 0; border-top: 1px solid var(--black); }
}

/* --------------------------------------------------------------- section */
.section { padding-block: var(--rhythm); border-bottom: 1px solid var(--black); }
.section__head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.section__title { font-size: clamp(2rem, 5vw, 3.25rem); letter-spacing: -0.045em; }
.section__num { font-family: var(--serif); font-style: italic; font-size: 1.25rem; color: var(--g-600); }

/* ------------------------------------------------------------------ work */
.cards { display: grid; gap: 1.25rem; }
.card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 15rem;
  gap: 2rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--black);
  color: var(--g-800);
  text-decoration: none;
  transition: background .3s var(--ease), color .3s var(--ease);
}
.card__top { display: flex; flex-wrap: wrap; align-items: baseline; gap: .4rem 1rem; margin-bottom: .9rem; }
.card__title { font-size: clamp(1.75rem, 3.5vw, 2.5rem); letter-spacing: -0.04em; transition: color .3s var(--ease); }
.card__role { font-size: .9rem; color: var(--g-600); transition: color .3s var(--ease); }
.card__desc { max-width: var(--measure); margin-bottom: 1.25rem; }
.card__tags { display: flex; flex-wrap: wrap; gap: .4rem; margin: 0 0 1.5rem; padding: 0; list-style: none; }
.card__tags li {
  padding: .15rem .55rem;
  border: 1px solid var(--g-200);
  font-size: .78rem;
  transition: border-color .3s var(--ease);
}
.card__more { display: inline-flex; gap: .5rem; color: var(--black); font-weight: 600; font-size: .9rem; transition: color .3s var(--ease); }
.card__more i { font-style: normal; transition: transform .3s var(--ease); }

.card__stats { margin: 0; display: grid; align-content: start; gap: 0; border-left: 1px solid var(--g-200); padding-left: 1.5rem; transition: border-color .3s var(--ease); }
.card__stats div { padding-block: .7rem; border-bottom: 1px solid var(--g-200); transition: border-color .3s var(--ease); }
.card__stats div:first-child { padding-top: 0; }
.card__stats div:last-child { border-bottom: 0; }
.card__stats dt { font-size: .75rem; color: var(--g-600); transition: color .3s var(--ease); }
.card__stats dd { margin: 0; color: var(--black); font-size: 1.6rem; font-weight: 700; letter-spacing: -0.03em; line-height: 1.2; transition: color .3s var(--ease); }

.card:hover { background: var(--black); color: var(--g-200); }
.card:hover .card__title,
.card:hover .card__more,
.card:hover .card__stats dd { color: var(--white); }
.card:hover .card__role,
.card:hover .card__stats dt { color: var(--g-400); }
.card:hover .card__tags li,
.card:hover .card__stats,
.card:hover .card__stats div { border-color: var(--g-800); }
.card:hover .card__more i { transform: translateX(4px); }

@media (max-width: 48rem) {
  .card { grid-template-columns: 1fr; gap: 1.5rem; }
  .card__stats { border-left: 0; padding-left: 0; border-top: 1px solid var(--g-200); padding-top: 1rem; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .card__stats div { border-bottom: 0; padding: 0; }
  .card__stats dd { font-size: 1.3rem; }
}

/* ----------------------------------------------------------------- about */
.about { display: grid; grid-template-columns: minmax(0, 1fr) 20rem; gap: clamp(2rem, 6vw, 5rem); }
.about__prose { max-width: var(--measure); }
@media (max-width: 54rem) { .about { grid-template-columns: 1fr; } }

.facts { margin: 0; border-top: 1px solid var(--black); }
.facts div { padding-block: .85rem; border-bottom: 1px solid var(--g-200); }
.facts dt { font-size: .75rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--g-600); }
.facts dd { margin: .15rem 0 0; color: var(--black); font-size: .95rem; line-height: 1.5; }

/* ----------------------------------------------------------------- other */
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--black); border-left: 1px solid var(--black); }
.grid4 > div { padding: 1.4rem 1.4rem 1.6rem; border-right: 1px solid var(--black); border-bottom: 1px solid var(--black); }
.grid4 h3 { font-size: 1.1rem; letter-spacing: -0.02em; margin-bottom: .5rem; }
.grid4 p { font-size: .92rem; line-height: 1.6; }
@media (max-width: 60rem) { .grid4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 34rem) { .grid4 { grid-template-columns: 1fr; } }

/* --------------------------------------------------------------- contact */
.dark { background: var(--black); color: var(--g-200); }
.dark h1, .dark h2, .dark h3, .dark strong { color: var(--white); }
.dark .label, .dark .section__num { color: var(--g-400); }
.dark .link { color: var(--white); }

.contact { padding-block: var(--rhythm); }
.contact__title { font-size: clamp(2.5rem, 8vw, 5.5rem); letter-spacing: -0.05em; line-height: .95; margin-bottom: 1.5rem; }
.contact__text { max-width: 34rem; margin-bottom: 2.5rem; }
.contact__links { display: flex; flex-wrap: wrap; gap: .75rem; margin: 0; padding: 0; list-style: none; }
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .85rem 1.25rem;
  border: 1px solid var(--white);
  color: var(--white);
  font-size: .95rem; font-weight: 500;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.btn:hover, .btn--solid { background: var(--white); color: var(--black); }
.btn--solid:hover { background: transparent; color: var(--white); }

/* ---------------------------------------------------------------- footer */
.foot { background: var(--black); color: var(--g-400); border-top: 1px solid var(--g-800); font-size: .85rem; }
.foot__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1.5rem; padding-block: 1.5rem; }
.foot a { color: var(--g-200); text-decoration: none; }
.foot a:hover { color: var(--white); text-decoration: underline; }

/* ============================================================ case pages */
.case-hero { padding-block: clamp(2rem, 5vw, 3rem) clamp(3rem, 7vw, 5rem); }
.crumb {
  display: inline-flex; gap: .4rem; margin-bottom: clamp(2.5rem, 6vw, 4rem);
  color: var(--g-200); font-size: .9rem; text-decoration: none;
}
.crumb:hover { color: var(--white); text-decoration: underline; }
.case-hero__title { font-size: clamp(3rem, 11vw, 8rem); letter-spacing: -0.055em; line-height: .92; margin: .9rem 0 1.5rem; }
.case-hero__sub { max-width: 40rem; color: var(--white); font-size: clamp(1.15rem, 2.2vw, 1.4rem); line-height: 1.45; }

.case-facts {
  display: grid; grid-template-columns: repeat(3, 1fr);
  margin: clamp(2.5rem, 5vw, 3.5rem) 0 0;
  border-top: 1px solid var(--g-800); border-left: 1px solid var(--g-800);
}
.case-facts div { padding: 1rem 1.15rem; border-right: 1px solid var(--g-800); border-bottom: 1px solid var(--g-800); }
.case-facts dt { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--g-400); }
.case-facts dd { margin: .2rem 0 0; color: var(--white); font-size: .95rem; line-height: 1.45; }
.case-facts a { color: var(--white); }
@media (max-width: 48rem) { .case-facts { grid-template-columns: 1fr 1fr; } }
@media (max-width: 30rem) { .case-facts { grid-template-columns: 1fr; } }

.case-body { display: grid; grid-template-columns: 12rem minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); padding-block: var(--rhythm); }
.toc { position: sticky; top: 5.5rem; align-self: start; margin: 0; padding: 0; list-style: none; border-left: 1px solid var(--black); }
.toc a { display: block; padding: .35rem 0 .35rem 1rem; color: var(--g-600); font-size: .88rem; text-decoration: none; }
.toc a:hover { color: var(--black); text-decoration: underline; }
@media (max-width: 54rem) { .case-body { grid-template-columns: 1fr; } .toc { display: none; } }

.case-prose { max-width: var(--measure); }
.case-prose h2 { font-size: 1.6rem; letter-spacing: -0.035em; margin: 3rem 0 1rem; }
.case-prose h2:first-child { margin-top: 0; }

.specs { margin: 1.5rem 0 2rem; padding: 0; list-style: none; border-top: 1px solid var(--black); }
.specs li { display: grid; grid-template-columns: 8.5rem 1fr; gap: 1rem; padding-block: .85rem; border-bottom: 1px solid var(--g-200); font-size: .95rem; line-height: 1.55; }
.specs b { color: var(--black); font-weight: 600; }
@media (max-width: 30rem) { .specs li { grid-template-columns: 1fr; gap: .1rem; } }

.pager { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--black); }
.pager a {
  display: block; padding: clamp(1.5rem, 4vw, 2.5rem) var(--gutter);
  color: var(--black); text-decoration: none;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.pager a + a { border-left: 1px solid var(--black); text-align: right; }
.pager span { display: block; font-size: .8rem; color: var(--g-600); margin-bottom: .3rem; transition: color .25s var(--ease); }
.pager b { font-size: clamp(1.4rem, 3vw, 2rem); letter-spacing: -0.035em; }
.pager a:hover { background: var(--black); color: var(--white); }
.pager a:hover span { color: var(--g-400); }

/* ------------------------------------------------------------------- 404 */
.notfound { min-height: 70vh; display: flex; flex-direction: column; justify-content: center; padding-block: var(--rhythm); }
.notfound h1 { font-size: clamp(3rem, 12vw, 8rem); letter-spacing: -0.055em; line-height: .92; margin: 1rem 0 1.5rem; }

@media print {
  .head, .foot, .pager, .crumb, .toc, .skip-link { display: none !important; }
  .dark { background: #fff !important; color: #000 !important; }
  .dark * { color: #000 !important; border-color: #000 !important; }
  .card:hover { background: none; }
}