/* ==========================================================================
   Alexander Withers — withers.works
   Two colours, one accent, generous whitespace. No framework.
   ========================================================================== */

/* --- Tokens --------------------------------------------------------------- */
:root {
  --base: #F7F7F3;
  --ink: #14161A;
  --accent: #2B3FE8;

  /* Text alphas are set from measured contrast against the base with the point
     field at its densest, not chosen by eye. Nothing here drops below 4.5:1. */
  --ink-70: rgba(20, 22, 26, .80);   /* body copy */
  --ink-55: rgba(20, 22, 26, .72);   /* secondary */
  --ink-40: rgba(20, 22, 26, .68);   /* mono metadata and labels */
  --rule:   rgba(20, 22, 26, .13);
  --rule-2: rgba(20, 22, 26, .07);
  /* Panels sit in front of the field rather than blending with it — a
     translucent panel over a moving point field just reads as mud. */
  --panel:  rgba(252, 252, 250, .95);

  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Fluid type scale */
  --t-micro: clamp(.6875rem, .66rem + .12vw, .75rem);
  --t-small: clamp(.8125rem, .79rem + .14vw, .9rem);
  --t-body:  clamp(1rem, .96rem + .2vw, 1.0938rem);
  --t-lede:  clamp(1.125rem, 1.03rem + .44vw, 1.4375rem);
  --t-h3:    clamp(1.125rem, 1.03rem + .42vw, 1.375rem);
  --t-h2:    clamp(1.875rem, 1.35rem + 2.3vw, 3.5rem);
  --t-h1:    clamp(2.5rem, 1.2rem + 5.6vw, 6.25rem);

  --gut: clamp(1.25rem, .8rem + 2.1vw, 3rem);
  --maxw: 1240px;
  --radius: 18px;

  --sec-pad: clamp(5.5rem, 3rem + 9vw, 11rem);
}

/* --- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body, h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--body);
  font-size: var(--t-body);
  font-weight: 400;
  line-height: 1.62;
  color: var(--ink);
  background: var(--base);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* --- Focus ---------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
:focus:not(:focus-visible) { outline: none; }

.skip {
  position: absolute; left: 50%; top: 0; z-index: 100;
  transform: translate(-50%, -140%);
  padding: .7rem 1.2rem;
  background: var(--ink); color: var(--base);
  font-family: var(--mono); font-size: var(--t-micro);
  border-radius: 0 0 10px 10px; text-decoration: none;
  transition: transform .18s ease;
}
.skip:focus { transform: translate(-50%, 0); }

/* --- Canvas --------------------------------------------------------------- */
#field {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* --- Layout scaffolding --------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
  position: relative;
  z-index: 1;
}
main { position: relative; z-index: 1; }
.section { padding-block: var(--sec-pad); border-top: 1px solid var(--rule); }
.section--contact { border-top: 1px solid var(--rule); }

/* --- Shared type ---------------------------------------------------------- */
.eyebrow {
  font-family: var(--mono);
  font-size: var(--t-micro);
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-55);
}

.sechead { margin-bottom: clamp(2.5rem, 1.5rem + 3.4vw, 5rem); }
.sechead__title {
  font-family: var(--display);
  font-size: var(--t-h2);
  font-weight: 600;
  font-stretch: 88%;
  line-height: 1.02;
  letter-spacing: -.02em;
  margin-top: .9rem;
  max-width: 18ch;
}
.sechead__note {
  margin-top: 1.1rem;
  color: var(--ink-55);
  font-size: var(--t-small);
  max-width: 42ch;
}

/* Placeholder marker — deliberately loud so it can't ship by accident. */
.ph {
  font-family: var(--mono);
  font-size: .86em;
  color: var(--accent);
  background: rgba(43, 63, 232, .09);
  border-bottom: 1px dashed rgba(43, 63, 232, .45);
  padding: .05em .35em;
  border-radius: 3px;
  white-space: nowrap;
}
.chip {
  display: inline-block;
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .35rem .7rem;
  border-radius: 999px;
  margin-bottom: 1.6rem;
}
.chip--warn { color: var(--accent); background: rgba(43, 63, 232, .1); }

/* --- Top bar -------------------------------------------------------------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 20;
  background: color-mix(in srgb, var(--base) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transform: translateY(-100%);
  transition: transform .34s cubic-bezier(.22,.61,.36,1), border-color .34s ease;
}
.topbar.is-on { transform: none; border-bottom-color: var(--rule); }
.topbar__inner {
  max-width: var(--maxw); margin-inline: auto;
  padding: .85rem var(--gut);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
}
.topbar__name {
  font-family: var(--display);
  font-weight: 600; font-stretch: 88%;
  font-size: var(--t-small);
  letter-spacing: -.01em;
  color: var(--ink); text-decoration: none;
}
.topbar__nav { display: flex; gap: clamp(.9rem, .4rem + 1.1vw, 1.9rem); }
.topbar__nav a {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .04em;
  color: var(--ink-55);
  text-decoration: none;
  transition: color .18s ease;
}
.topbar__nav a:hover { color: var(--ink); }
@media (max-width: 720px) { .topbar__nav { display: none; } }

/* --- Hero ----------------------------------------------------------------- */
.hero {
  padding-top: clamp(6rem, 4rem + 8vw, 10rem);
  padding-bottom: var(--sec-pad);
}
.hero__title {
  font-family: var(--display);
  font-size: var(--t-h1);
  font-weight: 600;
  font-stretch: 78%;           /* wdth axis — tight for large display */
  line-height: .94;
  letter-spacing: -.028em;
  margin-top: 1.4rem;
}
.hero__lede {
  margin-top: clamp(1.6rem, 1rem + 1.6vw, 2.4rem);
  font-size: var(--t-lede);
  font-weight: 300;
  line-height: 1.48;
  color: var(--ink-70);
  max-width: 54ch;
}

/* --- The translator ------------------------------------------------------- */
.translator {
  margin-top: clamp(3rem, 2rem + 4vw, 6rem);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}
.translator__head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .6rem 1.5rem;
  padding: 1.1rem clamp(1.1rem, .6rem + 1.4vw, 1.9rem);
  border-bottom: 1px solid var(--rule);
}
.translator__heading { font-size: inherit; font-weight: inherit; }
.translator__hint {
  font-family: var(--mono);
  font-size: var(--t-micro);
  color: var(--ink-40);
  margin-left: auto;
}
.translator__body { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
@media (max-width: 900px) { .translator__body { grid-template-columns: 1fr; } }

.translator__list {
  border-right: 1px solid var(--rule);
  display: flex; flex-direction: column;
}
@media (max-width: 900px) {
  .translator__list { border-right: 0; border-bottom: 1px solid var(--rule); }
}

.prob {
  display: flex; gap: .95rem; align-items: flex-start;
  text-align: left; width: 100%;
  padding: clamp(1rem, .7rem + .9vw, 1.4rem) clamp(1.1rem, .6rem + 1.4vw, 1.9rem);
  border-bottom: 1px solid var(--rule-2);
  cursor: pointer;
  position: relative;
  transition: background-color .2s ease, color .2s ease;
  color: var(--ink-70);
}
.prob:last-child { border-bottom: 0; }
.prob::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--accent);
  transform: scaleY(0); transform-origin: 50% 50%;
  transition: transform .28s cubic-bezier(.22,.61,.36,1);
}
.prob:hover { background: #fff; color: var(--ink); }
.prob[aria-selected="true"] { background: #fff; color: var(--ink); }
.prob[aria-selected="true"]::before { transform: scaleY(1); }
.prob__idx {
  font-family: var(--mono);
  font-size: var(--t-micro);
  color: var(--ink-40);
  padding-top: .32em;
  flex: none;
}
.prob[aria-selected="true"] .prob__idx { color: var(--accent); }
.prob__text {
  font-size: var(--t-small);
  line-height: 1.42;
  font-weight: 400;
}

.translator__panelwrap { display: flex; flex-direction: column; min-width: 0; }

.lens {
  display: flex; gap: .25rem;
  padding: clamp(1rem, .7rem + .8vw, 1.35rem) clamp(1.1rem, .6rem + 1.4vw, 1.9rem) 0;
}
.lens__opt {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: .55rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  color: var(--ink-55);
  border: 1px solid transparent;
  transition: background-color .22s ease, color .22s ease, border-color .22s ease;
}
.lens__opt:hover { color: var(--ink); }
.lens__opt.is-on {
  background: var(--ink);
  color: var(--base);
  border-color: var(--ink);
}

.translator__panel {
  padding: clamp(1.2rem, .8rem + 1.2vw, 1.9rem) clamp(1.1rem, .6rem + 1.4vw, 1.9rem)
           clamp(1.4rem, 1rem + 1.4vw, 2.1rem);
  min-height: clamp(19rem, 15rem + 11vw, 23rem);
}
@media (max-width: 900px) { .translator__panel { min-height: 0; } }

.tr-view[hidden] { display: none; }
.tr-view { animation: trIn .34s cubic-bezier(.22,.61,.36,1) both; }
@keyframes trIn { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .tr-view { animation: none; } }

.tr-dl dt {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .45rem;
}
.tr-dl dd {
  margin: 0 0 1.35rem;
  font-size: var(--t-small);
  line-height: 1.6;
  color: var(--ink-70);
  max-width: 62ch;
}
.tr-dl dd:last-child { margin-bottom: 0; }

/* --- Cards ---------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, .4rem + 1.6vw, 1.75rem);
}
@media (max-width: 880px) { .cards { grid-template-columns: 1fr; } }

.card {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: clamp(1.5rem, 1rem + 1.6vw, 2.4rem);
  display: flex; flex-direction: column;
}
.card__idx {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4.5rem);
}
.card__title {
  font-family: var(--display);
  font-size: var(--t-h3);
  font-weight: 600;
  font-stretch: 90%;
  line-height: 1.14;
  letter-spacing: -.015em;
  margin-bottom: .85rem;
}
.card__body { font-size: var(--t-small); color: var(--ink-70); }

/* --- Cases ---------------------------------------------------------------- */
.cases { border-top: 1px solid var(--rule); }
.case { border-bottom: 1px solid var(--rule); }
.case__trigger {
  display: flex; align-items: center; gap: clamp(1rem, .5rem + 1.6vw, 2.4rem);
  width: 100%; text-align: left; cursor: pointer;
  padding: clamp(1.5rem, 1rem + 1.8vw, 2.5rem) clamp(.25rem, 0rem + .8vw, 1rem);
  transition: padding-inline-start .32s cubic-bezier(.22,.61,.36,1), background-color .32s ease;
}
.case__trigger:hover { background: rgba(255,255,255,.5); padding-inline-start: clamp(.75rem, .4rem + 1.4vw, 1.75rem); }
.case__idx {
  font-family: var(--mono);
  font-size: var(--t-micro);
  color: var(--ink-40);
  flex: none;
}
.case__main { display: flex; flex-direction: column; gap: .4rem; min-width: 0; flex: 1; }
.case__title {
  font-family: var(--display);
  font-size: clamp(1.15rem, .95rem + 1vw, 1.85rem);
  font-weight: 500;
  font-stretch: 90%;
  line-height: 1.16;
  letter-spacing: -.017em;
}
.case__meta {
  font-family: var(--mono);
  font-size: var(--t-micro);
  color: var(--ink-40);
  letter-spacing: .04em;
}
.case__arrow {
  font-size: 1.2rem; color: var(--ink-40); flex: none;
  transition: transform .32s cubic-bezier(.22,.61,.36,1), color .32s ease;
}
.case__trigger:hover .case__arrow { transform: translate(3px, -3px); color: var(--accent); }

/* --- Positions ------------------------------------------------------------ */
.positions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 1rem + 3.4vw, 4.5rem) clamp(2rem, 1rem + 4vw, 6rem);
}
@media (max-width: 780px) { .positions { grid-template-columns: 1fr; } }
.pos { border-top: 1px solid var(--rule); padding-top: 1.4rem; }
.pos__num {
  font-family: var(--mono);
  font-size: var(--t-micro);
  color: var(--accent);
  letter-spacing: .1em;
  margin-bottom: 1rem;
}
.pos__rule {
  font-family: var(--display);
  font-size: var(--t-h3);
  font-weight: 600;
  font-stretch: 90%;
  line-height: 1.16;
  letter-spacing: -.016em;
  margin-bottom: .8rem;
  max-width: 22ch;
}
.pos__why { font-size: var(--t-small); color: var(--ink-70); max-width: 46ch; }

/* --- About ---------------------------------------------------------------- */
.about {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.6rem, 1rem + 3vw, 4.5rem);
}
@media (max-width: 780px) { .about { grid-template-columns: 1fr; } }
.about__col p { margin-bottom: 1.35rem; color: var(--ink-70); max-width: 52ch; }
.about__col p:last-child { margin-bottom: 0; }

/* --- Contact -------------------------------------------------------------- */
.contact__line {
  font-size: var(--t-lede);
  font-weight: 300;
  color: var(--ink-70);
  max-width: 34ch;
  margin-bottom: clamp(2.5rem, 1.6rem + 2.6vw, 4rem);
}
.contact__list {
  display: grid;
  gap: 0;
  max-width: 44rem;
  border-top: 1px solid var(--rule);
}
.contact__list li {
  display: flex; align-items: baseline; gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule);
}
.contact__label {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-40);
  flex: none; width: 6.5rem;
}
.contact__val {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: border-color .2s ease, color .2s ease;
  word-break: break-word;
}
.contact__val:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* --- Footer --------------------------------------------------------------- */
.foot { border-top: 1px solid var(--rule); padding-block: 2.5rem 3rem; position: relative; z-index: 1; }
.foot__inner {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 1.5rem;
  font-family: var(--mono);
  font-size: var(--t-micro);
  color: var(--ink-40);
  letter-spacing: .03em;
}

/* --- Modal ---------------------------------------------------------------- */
.modal {
  border: 0; padding: 0;
  max-width: min(46rem, calc(100vw - 2 * var(--gut)));
  width: 100%;
  max-height: min(86vh, 52rem);
  background: var(--base);
  border-radius: var(--radius);
  color: var(--ink);
  overflow: hidden;
  box-shadow: 0 40px 90px -30px rgba(20, 22, 26, .34);
}
.modal::backdrop { background: rgba(20, 22, 26, .42); backdrop-filter: blur(4px); }
.modal[open] { animation: modalIn .3s cubic-bezier(.22,.61,.36,1) both; }
.modal[open]::backdrop { animation: fadeIn .3s ease both; }
@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(.985); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .modal[open], .modal[open]::backdrop { animation: none; }
}

.modal__inner {
  padding: clamp(1.5rem, 1rem + 1.8vw, 2.75rem);
  outline-offset: -4px;
  max-height: inherit;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.modal__bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  margin-bottom: clamp(1.5rem, 1rem + 1.6vw, 2.5rem);
}
.modal__eyebrow {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-40);
}
.modal__close {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  padding: .5rem .85rem;
  border-radius: 999px;
  border: 1px solid var(--rule);
  color: var(--ink-55);
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.modal__close:hover { background: var(--ink); color: var(--base); border-color: var(--ink); }
.modal__title {
  font-family: var(--display);
  font-size: clamp(1.5rem, 1.1rem + 1.9vw, 2.6rem);
  font-weight: 600; font-stretch: 86%;
  line-height: 1.06; letter-spacing: -.022em;
  margin-bottom: clamp(1.5rem, 1rem + 1.6vw, 2.25rem);
  max-width: 24ch;
}
.modal__body h4 {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 2rem 0 .7rem;
}
.modal__body h4:first-of-type { margin-top: 0; }
.modal__body p { font-size: var(--t-small); color: var(--ink-70); max-width: 64ch; }
.modal__body .chip { margin-bottom: 1.8rem; }

.tags {
  display: flex; flex-wrap: wrap; gap: .45rem;
  margin-top: 2.25rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--rule);
}
.tags li {
  font-family: var(--mono);
  font-size: var(--t-micro);
  letter-spacing: .04em;
  padding: .35rem .75rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  color: var(--ink-55);
}

body.is-locked { overflow: hidden; }

/* --- Scroll reveals ------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .72s cubic-bezier(.22,.61,.36,1), transform .72s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-in { opacity: 1; transform: none; }

/* Stagger children of a group */
.cards .reveal:nth-child(2), .cases .reveal:nth-child(2), .positions .reveal:nth-child(2) { transition-delay: .07s; }
.cards .reveal:nth-child(3), .cases .reveal:nth-child(3), .positions .reveal:nth-child(3) { transition-delay: .14s; }
.cases .reveal:nth-child(4), .positions .reveal:nth-child(4) { transition-delay: .21s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; transition-delay: 0s !important; }
  .topbar { transition: none; }
  .case__trigger, .case__arrow, .prob::before { transition: none; }
}

/* --- Small screens -------------------------------------------------------- */
/* The display headline sets its own break only when there is room for it. */
@media (max-width: 900px) { .brk { display: none; } }

@media (max-width: 480px) {
  .hero__title { max-width: 100%; }
  .case__trigger { align-items: flex-start; }
  .case__arrow { padding-top: .15rem; }
  .contact__list li { flex-direction: column; gap: .3rem; }
  .contact__label { width: auto; }
}