/* ══════════════════════════════════════════════════════════════════════════
   DSTIL — Strategic Presentation Design
   A Swiss grid system: 12 columns desktop / 8 tablet / 4 mobile.
   Three inks only: orange, near-black, off-white.
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  /* ink */
  --orange:  #F26522;
  --black:   #111111;
  --cream:   #F4F1EA;

  /* rules — drawn in the ink of the section they sit in */
  --rule: rgba(17, 17, 17, .22);
  --hairline: rgba(17, 17, 17, .22);

  /* metrics */
  --cols: 12;
  --gutter: clamp(14px, 1.6vw, 26px);
  --pad: clamp(18px, 3.4vw, 56px);
  --band: clamp(72px, 9vw, 150px);   /* vertical rhythm between sections */

  /* type */
  --font: "Helvetica Neue", Helvetica, "Arial Nova", Arial, "Liberation Sans", sans-serif;
  --display: clamp(3rem, 10.6vw, 11.5rem);
  --display-md: clamp(2.4rem, 7.4vw, 7.6rem);
  --lede: clamp(1.05rem, 1.55vw, 1.5rem);
  --body: clamp(1rem, 1.12vw, 1.2rem);
  --meta: clamp(.66rem, .78vw, .78rem);
}

/* ── reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--cream);
  color: var(--black);
  font-family: var(--font);
  font-size: var(--body);
  line-height: 1.45;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--black); color: var(--orange); }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 99;
  background: var(--black); color: var(--cream);
  padding: .75rem 1rem; font-size: var(--meta);
  letter-spacing: .1em; text-transform: uppercase;
}
.skip:focus { left: 0; }
:focus-visible { outline: 2px solid currentColor; outline-offset: 4px; }

/* ── grid primitives ───────────────────────────────────────────────────── */
.section {
  position: relative;
  padding: var(--band) var(--pad);
  border-top: 1px solid var(--black);
}
.grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  column-gap: var(--gutter);
}

/* the grid made visible — thin rules on every column start, plus the closing edge */
.rules {
  position: absolute;
  inset: 0 var(--pad);
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(0, 1fr));
  column-gap: var(--gutter);
  border-right: 1px solid var(--rule);
  pointer-events: none;
}
.rules i { border-left: 1px solid var(--rule); }
.rules i:nth-child(n + 13) { display: none; }

/* ── colour bands ──────────────────────────────────────────────────────── */
.section--orange { background: var(--orange); color: var(--black); --rule: rgba(244, 241, 234, .55); --hairline: rgba(17, 17, 17, .3); }
.section--cream  { background: var(--cream);  color: var(--black); --rule: rgba(17, 17, 17, .16); --hairline: rgba(17, 17, 17, .22); }
.section--black  { background: var(--black);  color: var(--cream); --rule: rgba(244, 241, 234, .18); --hairline: rgba(244, 241, 234, .3); }
.section--black  { border-top-color: var(--black); }
.section--orange + .section--cream { border-top-color: var(--black); }

/* ── type styles ───────────────────────────────────────────────────────── */
.display {
  font-size: var(--display);
  font-weight: 700;
  line-height: .86;
  letter-spacing: -.035em;
  text-transform: uppercase;
  margin-left: -.012em;           /* optical alignment to the rule */
}
.display--md { font-size: var(--display-md); line-height: .9; letter-spacing: -.028em; }
.display span { display: block; }

.meta {
  font-size: var(--meta);
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.meta span { opacity: .5; }

.lede {
  font-size: var(--lede);
  line-height: 1.3;
  letter-spacing: -.012em;
  font-weight: 500;
  text-wrap: pretty;
}

p + p { margin-top: 1.1em; }

/* ── button ────────────────────────────────────────────────────────────── */
.button {
  display: inline-flex;
  align-items: baseline;
  gap: .7em;
  border-top: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  padding: .7rem 0;
  font-size: var(--meta);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: gap .35s cubic-bezier(.22,.61,.36,1), padding-left .35s cubic-bezier(.22,.61,.36,1);
}
.button:hover { gap: 1.4em; padding-left: .35em; }
.button--lg { font-size: clamp(.78rem, 1vw, .95rem); padding: 1rem 0; }

/* ── masthead ──────────────────────────────────────────────────────────── */
.masthead {
  background: var(--orange);
  color: var(--black);
  padding: clamp(14px, 1.6vw, 22px) var(--pad);
}
.masthead__inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--gutter);
  flex-wrap: wrap;
}
.masthead__brand {
  font-size: clamp(1rem, 1.3vw, 1.25rem);
  font-weight: 700;
  letter-spacing: .26em;
  text-transform: uppercase;
}
.masthead__nav {
  display: flex;
  gap: clamp(14px, 2vw, 34px);
  font-size: var(--meta);
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.masthead__nav a { padding-bottom: 2px; border-bottom: 1px solid transparent; transition: border-color .25s; }
.masthead__nav a:hover { border-bottom-color: currentColor; }
.masthead__cta { font-weight: 700; border-bottom: 1px solid currentColor !important; }

/* ══════════════  01 HERO  ══════════════ */
.hero { border-top: 0; padding-top: clamp(40px, 6vw, 92px); }
.hero__grid { row-gap: clamp(26px, 4vw, 58px); }

.hero__index    { grid-column: 1 / span 3; grid-row: 1; }
.hero__label    { grid-column: 4 / span 6; grid-row: 1; font-weight: 700; }
.hero__wordmark {
  grid-column: 1 / span 7; grid-row: 2;
  font-size: clamp(3.4rem, 8.2vw, 8.5rem);
  font-weight: 700;
  line-height: .84;
  letter-spacing: -.025em;
  margin-left: -.012em;
}
.hero__tools {
  grid-column: 10 / span 3; grid-row: 2;
  align-self: end;
  display: grid;
  gap: .15rem;
  border-top: 1px solid var(--black);
  padding-top: .6rem;
}
.hero__statement { grid-column: 1 / span 11; grid-row: 3; }
.hero__aside {
  grid-column: 7 / span 6; grid-row: 4;
  border-top: 1px solid var(--black);
  padding-top: 1.2rem;
  display: grid;
  gap: clamp(20px, 2.4vw, 34px);
  justify-items: start;
}
.hero__aside .lede { max-width: 46ch; }

/* ══════════════  02 INTRODUCTION  ══════════════ */
.intro__grid { row-gap: clamp(34px, 4.6vw, 72px); }
.intro__index { grid-column: 1 / span 2; grid-row: 1; }
.intro__head  { grid-column: 3 / span 9; grid-row: 1; }
.intro__note  { grid-column: 1 / span 2; grid-row: 2; opacity: .7; }
.intro__body  {
  grid-column: 7 / span 6; grid-row: 2;
  font-size: var(--lede);
  line-height: 1.38;
  letter-spacing: -.008em;
  max-width: 54ch;
}

/* ══════════════  03 SERVICES  ══════════════ */
.services__grid { row-gap: clamp(30px, 4vw, 56px); }
.services__index { grid-column: 1 / span 2; }
.services__head  { grid-column: 3 / span 9; }
.services__list  { margin-top: clamp(44px, 6vw, 96px); border-bottom: 1px solid var(--black); }

.row {
  border-top: 1px solid var(--black);
  padding: clamp(18px, 2vw, 30px) 0;
  align-items: start;
  row-gap: .5rem;
  transition: background-color .4s ease;
}
.row__num   { grid-column: 1 / span 1; padding-top: .45em; transition: color .3s ease, transform .4s cubic-bezier(.22,.61,.36,1); }
.row__title {
  grid-column: 2 / span 5;
  font-size: clamp(1.4rem, 2.9vw, 2.9rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -.028em;
  text-transform: uppercase;
  transition: transform .45s cubic-bezier(.22,.61,.36,1);
}
.row__copy  { grid-column: 8 / span 5; max-width: 48ch; padding-top: .3em; }
.row:hover .row__title { transform: translateX(.28em); }
.row:hover .row__num   { color: var(--orange); transform: translateX(.28em); }

/* ══════════════  04 PRESENTATION TYPES  ══════════════ */
.types__grid  { row-gap: clamp(30px, 4vw, 56px); }
.types__index { grid-column: 1 / span 2; }
.types__head  { grid-column: 3 / span 8; }
.types__list  {
  margin-top: clamp(44px, 6vw, 96px);
  row-gap: 0;
}
.type {
  grid-column: span 4;
  border-top: 1px solid var(--hairline);
  padding: clamp(16px, 1.8vw, 26px) var(--gutter) clamp(34px, 4.4vw, 68px) 0;
}
.type__num   { display: block; opacity: .5; margin-bottom: clamp(26px, 3.4vw, 54px); }
.type__title {
  font-size: clamp(1.6rem, 3.4vw, 3.4rem);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -.03em;
  text-transform: uppercase;
  transition: color .3s ease;
}
.type__copy { margin-top: .9rem; max-width: 30ch; opacity: .8; }
.type:hover .type__title { color: var(--orange); }

/* ══════════════  05 PROCESS  ══════════════ */
.process__grid { row-gap: clamp(28px, 3.4vw, 50px); align-items: end; }
.process__index { grid-column: 1 / span 2; grid-row: 1; }
.process__head  { grid-column: 3 / span 7; grid-row: 2; }
.process__lede  { grid-column: 10 / span 3; grid-row: 2; align-self: end; }
.process__list  { margin-top: clamp(44px, 6vw, 96px); row-gap: clamp(30px, 4vw, 56px); }
.step {
  grid-column: span 2;
  border-top: 2px solid var(--black);
  padding-top: clamp(12px, 1.2vw, 18px);
  padding-right: var(--gutter);
}
.step__num  { display: block; font-weight: 700; margin-bottom: .9rem; }
.step__copy { font-size: clamp(.92rem, .96vw, 1.02rem); line-height: 1.4; }

/* ══════════════  06 SOFTWARE / CAPABILITIES  ══════════════ */
.software__grid { row-gap: clamp(30px, 4vw, 60px); }
.software__index { grid-column: 1 / span 3; grid-row: 1; }
.software__head  { grid-column: 1 / span 12; grid-row: 2; }
.software__head .bleed { margin-left: calc(var(--pad) * -1); }
.software__lede  { grid-column: 1 / span 4; grid-row: 3; border-top: 1px solid currentColor; padding-top: 1.1rem; }
.software__caps  {
  grid-column: 7 / span 6; grid-row: 3;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: var(--gutter);
  border-top: 1px solid currentColor;
}
.software__caps li {
  font-size: var(--meta);
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: .62rem 0;
  border-bottom: 1px solid var(--hairline);
}

/* ══════════════  07 CTA  ══════════════ */
.cta__grid  { row-gap: clamp(30px, 4vw, 60px); }
.cta__index { grid-column: 1 / span 2; grid-row: 1; }
.cta__head  { grid-column: 1 / span 9; grid-row: 2; }
.cta__body  {
  grid-column: 9 / span 4; grid-row: 3;
  display: grid;
  justify-items: start;
  gap: clamp(18px, 2vw, 30px);
  border-top: 1px solid var(--black);
  padding-top: 1.2rem;
}
.cta__body .lede + .lede { margin-top: 0; }
.cta__mail {
  font-size: clamp(1.1rem, 2vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -.02em;
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease;
}
.cta__mail:hover { border-bottom-color: currentColor; }

/* ══════════════  08 FOOTER  ══════════════ */
.footer { padding-block: clamp(40px, 5vw, 76px); }
.footer__grid { row-gap: clamp(26px, 3vw, 40px); align-items: start; }
.footer__brand {
  grid-column: 1 / span 3;
  font-size: clamp(1.4rem, 2.4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: .2em;
  line-height: 1;
}
.footer__pos   { grid-column: 4 / span 3; }
.footer__tools { grid-column: 7 / span 2; opacity: .6; }
.footer__links { grid-column: 9 / span 2; display: grid; gap: .3rem; }
.footer__links a { border-bottom: 1px solid transparent; transition: border-color .3s ease; }
.footer__links a:hover { border-bottom-color: currentColor; }
.footer__legal { grid-column: 11 / span 2; opacity: .6; }

/* ══════════════════  TABLET — 8 columns  ══════════════════ */
@media (max-width: 1024px) {
  :root { --cols: 8; }
  .rules i:nth-child(n + 9) { display: none; }

  .hero__index { grid-column: 1 / span 3; }
  .hero__label { grid-column: 4 / span 5; }
  .hero__wordmark { grid-column: 1 / span 6; }
  .hero__tools { grid-column: 7 / span 2; }
  .hero__statement { grid-column: 1 / span 8; }
  .hero__aside { grid-column: 3 / span 6; }

  .intro__index { grid-column: 1 / span 3; grid-row: 1; }
  .intro__head  { grid-column: 2 / span 7; grid-row: 2; }
  .intro__note  { grid-column: 1 / span 3; grid-row: 3; }
  .intro__body  { grid-column: 4 / span 5; grid-row: 3; }

  .services__head { grid-column: 2 / span 7; }
  .row__num   { grid-column: 1 / span 1; }
  .row__title { grid-column: 2 / span 4; }
  .row__copy  { grid-column: 6 / span 3; }

  .types__head { grid-column: 2 / span 7; }
  .type { grid-column: span 4; }

  .process__head { grid-column: 2 / span 6; }
  .process__lede { grid-column: 1 / span 5; grid-row: 3; }
  .step { grid-column: span 4; }

  .software__head { grid-column: 1 / span 8; }
  .software__lede { grid-column: 1 / span 4; }
  .software__caps { grid-column: 5 / span 4; }

  .cta__head { grid-column: 1 / span 8; }
  .cta__body { grid-column: 4 / span 5; }

  .footer__brand { grid-column: 1 / span 4; }
  .footer__pos   { grid-column: 5 / span 4; }
  .footer__tools { grid-column: 1 / span 4; }
  .footer__links { grid-column: 5 / span 4; }
  .footer__legal { grid-column: 1 / span 4; }
}

/* ══════════════════  MOBILE — 4 columns  ══════════════════ */
@media (max-width: 640px) {
  :root {
    --cols: 4;
    --display: clamp(2.7rem, 15vw, 5rem);
    --display-md: clamp(2.2rem, 12vw, 4rem);
    --band: clamp(56px, 16vw, 92px);
  }
  .rules i:nth-child(n + 5) { display: none; }

  .masthead__inner { align-items: flex-start; }
  .masthead__nav { width: 100%; flex-wrap: wrap; gap: 10px 18px; margin-top: 14px; }

  .hero__index { grid-column: 1 / span 2; }
  .hero__label { grid-column: 3 / span 2; }
  .hero__wordmark { grid-column: 1 / -1; font-size: clamp(3.4rem, 22vw, 6rem); }
  .hero__tools { grid-column: 1 / -1; grid-row: 5; grid-template-columns: 1fr 1fr; }
  .hero__statement { grid-column: 1 / -1; }
  .hero__aside { grid-column: 1 / -1; }

  .intro__head, .intro__body, .intro__note,
  .services__head, .types__head,
  .process__head, .process__lede,
  .software__head, .software__lede, .software__caps,
  .cta__head, .cta__body { grid-column: 1 / -1; }

  .intro__index { grid-row: 1; }
  .intro__head  { grid-row: 2; }
  .intro__body  { grid-row: 3; }
  .intro__note  { grid-row: 4; }
  .software__lede { grid-row: 3; }
  .software__caps { grid-row: 4; }
  .process__lede { grid-row: 3; }
  .cta__body { grid-row: 3; }

  .row { row-gap: .35rem; }
  .row__num   { grid-column: 1 / -1; padding-top: 0; }
  .row__title { grid-column: 1 / -1; }
  .row__copy  { grid-column: 1 / -1; }

  .type { grid-column: 1 / -1; padding-bottom: clamp(26px, 8vw, 40px); }
  .type__num { margin-bottom: 1.2rem; }
  .step { grid-column: 1 / -1; }

  .software__head .bleed { margin-left: 0; }
  .software__caps { grid-template-columns: 1fr; margin-top: -1px; }

  .footer__brand, .footer__pos, .footer__tools,
  .footer__links, .footer__legal { grid-column: 1 / -1; }
  .footer__tools { display: grid; grid-template-columns: 1fr 1fr; }
}

/* ══════════════════  REVEAL  ══════════════════ */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity .8s cubic-bezier(.22,.61,.36,1) var(--d, 0ms),
    transform .8s cubic-bezier(.22,.61,.36,1) var(--d, 0ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; transition-duration: .01ms !important; }
}

/* ══════════════════  PRINT  ══════════════════ */
@media print {
  .rules, .masthead__nav { display: none; }
  .section { padding: 24pt 0; border-top: .5pt solid #000; }
  body { background: #fff; color: #000; }
}