/* ==========================================================================
   onetwothreework — production stylesheet
   Strict design system. Four colors. Inter only. 8px grid. 6px radius.
   ========================================================================== */

:root {
  --color-bg: #0F0F13;
  --color-surface: #1B2A41;
  --color-accent: #F0654A;
  --color-text: #F4F1EC;
  --color-text-muted: #8A9BB0;

  --radius: 6px;
  --shadow: 0 2px 16px rgba(0, 0, 0, 0.4);

  --container: 1160px;

  /* Type scale — strict */
  --fs-12: 12px;
  --fs-14: 14px;
  --fs-16: 16px;
  --fs-20: 20px;
  --fs-24: 24px;
  --fs-32: 32px;
  --fs-48: 48px;
  --fs-64: 64px;
}

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

/* ---------- Base ---------- */
html, body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: var(--fs-16);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3 {
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
}

p { color: var(--color-text); }

::selection { background: var(--color-accent); color: var(--color-text); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-text);
  padding: 8px 16px;
  border-radius: var(--radius);
  z-index: 1000;
}
.skip-link:focus { left: 16px; top: 16px; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius);
}
.pill:focus-visible,
.link-cta:focus-visible,
.founder__link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* Hero scroll cue can be hidden by JS after first scroll */
.hero__scroll[data-hidden="true"] { opacity: 0; pointer-events: none; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

/* ---------- Typography utilities ---------- */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: var(--fs-12);
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.eyebrow--inline { margin-top: 96px; }

.section__title {
  font-size: var(--fs-48);
  margin-bottom: 48px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
  border: 0;
  white-space: nowrap;
}
.btn--accent {
  background: var(--color-accent);
  color: var(--color-text);
}
.btn--accent:hover { opacity: 0.88; }
.btn--accent:active { transform: translateY(1px); }

.btn--lg {
  height: 48px;
  padding: 0 24px;
  font-size: var(--fs-16);
}
.btn--sm {
  height: 40px;
  padding: 0 16px;
  font-size: var(--fs-14);
}
.btn i,
.link-cta i { width: 16px; height: 16px; stroke-width: 1.5px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 80px;
  background: rgba(27, 42, 65, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.nav__inner {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav__logo { display: inline-flex; align-items: center; }
.nav__logo img { height: 40px; width: auto; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__links a {
  color: var(--color-text);
  font-size: var(--fs-14);
  font-weight: 400;
  transition: color 160ms ease;
}
.nav__links a:hover { color: var(--color-accent); }
.nav__links .btn { margin-left: 8px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: min(880px, calc(100vh - 80px));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: left;
  overflow: hidden;
  padding: 96px 0 128px;
}
.hero__inner {
  position: relative;
  z-index: 2;
}
.hero__title {
  font-size: var(--fs-64);
  max-width: 880px;
  margin-bottom: 24px;
}
.hero__subline {
  font-size: var(--fs-20);
  color: var(--color-text-muted);
  max-width: 720px;
  margin-bottom: 48px;
}
.hero__cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* Ghost 1-2-3 bars in hero background */
.hero__bars {
  position: absolute;
  right: -64px;
  bottom: -32px;
  display: flex;
  align-items: flex-end;
  gap: 24px;
  z-index: 1;
  pointer-events: none;
}
.bar {
  display: block;
  width: 96px;
  background: var(--color-accent);
  opacity: 0.08;
  border-radius: var(--radius);
}
.bar--1 { height: 160px; }
.bar--2 { height: 260px; }
.bar--3 { height: 400px; }

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  z-index: 2;
  display: inline-flex;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
  animation: bob 2.4s ease-in-out infinite;
  transition: opacity 240ms ease;
}
.hero__scroll i { width: 24px; height: 24px; stroke-width: 1.5px; }

@keyframes bob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ---------- Trust strip ---------- */
.trust {
  background: var(--color-surface);
  padding: 32px 0;
}
.trust__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 32px;
}
.trust__label {
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  font-weight: 700;
  margin: 0;
}
.trust__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  font-size: var(--fs-14);
  color: var(--color-text);
}
.trust__list li {
  position: relative;
  padding-right: 24px;
}
.trust__list li:not(:last-child)::after {
  content: "·";
  position: absolute;
  right: 0;
  color: var(--color-text-muted);
}

/* ---------- Cards grid (Why us) ---------- */
.cards {
  display: grid;
  gap: 24px;
}
.cards--2x2 {
  grid-template-columns: repeat(2, 1fr);
}
.cards--3up {
  grid-template-columns: repeat(3, 1fr);
}
.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}
.card__icon {
  display: inline-flex;
  width: 64px;
  height: 64px;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  background: var(--color-bg);
  border-radius: var(--radius);
  margin-bottom: 24px;
}
.card__icon i { width: 32px; height: 32px; stroke-width: 1.5px; }
.card__title {
  font-size: var(--fs-24);
  margin-bottom: 8px;
}
.card__desc {
  color: var(--color-text-muted);
  font-size: var(--fs-16);
}

/* ---------- Industries ---------- */
.industries {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.industry {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 48px 32px;
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 220px;
  display: flex;
  align-items: flex-end;
}
.industry__motif {
  position: absolute;
  right: 24px;
  top: 24px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  pointer-events: none;
}
.motif-bar {
  display: block;
  width: 16px;
  background: var(--color-accent);
  opacity: 0.08;
  border-radius: var(--radius);
}
.motif-bar--1 { height: 32px; }
.motif-bar--2 { height: 52px; }
.motif-bar--3 { height: 80px; }
.industry__content { position: relative; z-index: 1; }
.industry__name {
  font-size: var(--fs-32);
  margin-bottom: 8px;
}
.industry__desc {
  color: var(--color-text-muted);
  font-size: var(--fs-16);
}

/* ---------- Case studies ---------- */
.cases {
  display: grid;
  gap: 24px;
}
.case {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 48px;
  box-shadow: var(--shadow);
}
.case__head {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 24px;
}
.case__icon {
  display: inline-flex;
  width: 64px;
  height: 64px;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  background: var(--color-bg);
  border-radius: var(--radius);
  flex-shrink: 0;
}
.case__icon i { width: 32px; height: 32px; stroke-width: 1.5px; }
.pill {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text);
  font-size: var(--fs-12);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 8px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.case__title {
  font-size: var(--fs-32);
}
.case__problem,
.case__outcome {
  font-size: var(--fs-16);
  margin-top: 16px;
}
.case__problem { color: var(--color-text-muted); }
.case__outcome { color: var(--color-text); font-weight: 700; }
.case__label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: var(--fs-12);
  color: var(--color-text-muted);
  font-weight: 700;
  margin-right: 8px;
}
.case__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  background: transparent;
}
.case__meta > div {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.case__meta dt {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: var(--fs-12);
  color: var(--color-text-muted);
  font-weight: 700;
}
.case__meta dd {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--color-text);
}

.link-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent);
  font-weight: 700;
  font-size: var(--fs-14);
  margin-top: 32px;
  transition: gap 160ms ease;
}
.link-cta:hover { gap: 16px; }

/* ---------- About ---------- */
.about {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 96px;
  align-items: start;
}
.about__copy p {
  font-size: var(--fs-16);
  margin-bottom: 24px;
  color: var(--color-text);
}
.about__copy p:last-child { margin-bottom: 0; }
.stats {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  box-shadow: var(--shadow);
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat__num {
  font-size: var(--fs-48);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.15;
}
.stat__label {
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

/* ---------- Founders ---------- */
.founders__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.founder {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  box-shadow: var(--shadow);
}
.founder__avatar {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  background: var(--color-bg);
  color: var(--color-accent);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-24);
}
.founder__body { flex: 1; }
.founder__name {
  font-size: var(--fs-20);
  margin-bottom: 8px;
}
.founder__role {
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  font-weight: 700;
  margin-bottom: 16px;
}
.founder__bio {
  font-size: var(--fs-14);
  color: var(--color-text-muted);
  margin-bottom: 16px;
}
.founder__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.founder__link i { width: 16px; height: 16px; stroke-width: 1.5px; }
.founder__link:hover { opacity: 0.88; }

/* ---------- Final CTA ---------- */
.finalcta {
  background: var(--color-surface);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.finalcta__inner {
  position: relative;
  text-align: center;
  z-index: 2;
}
.finalcta__bars {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: flex-end;
  gap: 24px;
  z-index: 1;
  pointer-events: none;
}
.finalcta__bars .bar { width: 64px; }
.finalcta__bars .bar--1 { height: 120px; }
.finalcta__bars .bar--2 { height: 195px; }
.finalcta__bars .bar--3 { height: 300px; }
.finalcta__title {
  font-size: var(--fs-48);
  margin-bottom: 24px;
}
.finalcta__body {
  font-size: var(--fs-20);
  color: var(--color-text-muted);
  margin-bottom: 48px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-surface);
  padding: 64px 0 32px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer__brand { display: flex; flex-direction: column; gap: 16px; }
.footer__logo img { width: 32px; height: 32px; }
.footer__tag {
  font-size: var(--fs-16);
  color: var(--color-text);
  max-width: 280px;
}
.footer__city {
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}
.footer__heading {
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  font-weight: 700;
}
.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer__nav a,
.footer__link {
  font-size: var(--fs-14);
  color: var(--color-text);
  transition: color 160ms ease;
  display: inline-block;
  margin-bottom: 8px;
}
.footer__nav a:hover,
.footer__link:hover { color: var(--color-accent); }
.footer__social { display: flex; gap: 16px; margin-top: 16px; }
.footer__social a {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  background: var(--color-bg);
  border-radius: var(--radius);
  transition: color 160ms ease;
}
.footer__social a:hover { color: var(--color-accent); }
.footer__social i { width: 16px; height: 16px; stroke-width: 1.5px; }

.footer__base {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-top: 32px;
}
.footer__copy {
  font-size: var(--fs-12);
  color: var(--color-text-muted);
}
.footer__legal { display: flex; gap: 24px; }
.footer__legal a {
  font-size: var(--fs-12);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.footer__legal a:hover { color: var(--color-accent); }

/* ==========================================================================
   Mobile breakpoint — 768px
   ========================================================================== */
@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .section { padding: 48px 0; }

  /* Nav — on mobile, keep only the logo and the Let's Talk button */
  .nav { height: 64px; }
  .nav__inner { height: 64px; gap: 16px; }
  .nav__logo img { height: 32px; }
  .nav__links { gap: 16px; }
  .nav__links > a:not(.btn) { display: none; }

  /* Hero */
  .hero {
    min-height: auto;
    padding: 48px 0 96px;
    text-align: left;
  }
  .hero__title { font-size: var(--fs-48); }
  .hero__subline { font-size: var(--fs-16); margin-bottom: 32px; }
  .hero__bars { right: -32px; gap: 8px; }
  .hero__bars .bar { width: 48px; }
  .hero__bars .bar--1 { height: 80px; }
  .hero__bars .bar--2 { height: 130px; }
  .hero__bars .bar--3 { height: 200px; }
  .hero__scroll { bottom: 16px; }

  /* Section title */
  .section__title { font-size: var(--fs-32); margin-bottom: 32px; }

  /* Cards */
  .cards--2x2,
  .cards--3up { grid-template-columns: 1fr; }
  .card { padding: 24px; }

  /* Trust strip */
  .trust { padding: 24px 0; }
  .trust__inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .trust__list { gap: 8px 16px; }

  /* Industries */
  .industries { grid-template-columns: 1fr; }
  .industry { padding: 32px 24px; min-height: 160px; }
  .industry__name { font-size: var(--fs-24); }

  /* Cases */
  .case { padding: 32px 24px; }
  .case__head { flex-direction: column; gap: 16px; }
  .case__title { font-size: var(--fs-24); }
  .case__icon { width: 48px; height: 48px; }
  .case__icon i { width: 24px; height: 24px; }
  .case__meta { grid-template-columns: 1fr; gap: 16px; }

  /* About */
  .about { grid-template-columns: 1fr; gap: 32px; }
  .stats { padding: 32px 24px; gap: 24px; }

  /* Founders */
  .eyebrow--inline { margin-top: 48px; }
  .founders__grid { grid-template-columns: 1fr; }
  .founder { padding: 24px; gap: 16px; }
  .founder__avatar { width: 48px; height: 48px; font-size: var(--fs-20); }

  /* Final CTA */
  .finalcta { padding: 48px 0; }
  .finalcta__title { font-size: var(--fs-32); }
  .finalcta__body { font-size: var(--fs-16); margin-bottom: 32px; }
  .finalcta__bars { display: none; }

  /* Footer */
  .footer { padding: 48px 0 24px; }
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
  }
  .footer__base {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding-top: 24px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}