:root {
  --black: #111111;
  --ink: #000000;
  --white: #ffffff;
  --paper: #f4f4f4;
  --grey: #8a8a8a;
  --line: #d6d6d6;
  --line-dark: #333333;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "Courier New", Courier, monospace;
  --gutter: clamp(16px, 5vw, 72px);
  --max: 1320px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { font-family: var(--sans); color: var(--ink); background: var(--white); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; }

.dark { background: var(--black); color: var(--white); }
.label, .mono { font-family: var(--mono); font-weight: 700; letter-spacing: 0.04em; }
.label { font-size: 13px; color: var(--grey); text-transform: uppercase; margin-bottom: 20px; }

h2 { font-size: clamp(30px, 4.4vw, 56px); line-height: 1.08; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 24px; }
h3 { font-size: 22px; line-height: 1.2; font-weight: 700; }

section { padding: clamp(72px, 10vw, 140px) var(--gutter); }
.section__head { max-width: var(--max); margin: 0 auto 56px; padding-bottom: 24px; border-bottom: 1px solid var(--ink); }
.section__head h2 { margin-bottom: 0; }

/* Buttons */
.btn { display: inline-block; font-family: var(--mono); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; text-decoration: none; padding: 16px 28px; border: 2px solid currentColor; cursor: pointer; transition: background .2s, color .2s; }
.btn--light { background: var(--white); color: var(--black); border-color: var(--white); }
.btn--light:hover { background: transparent; color: var(--white); }
.btn--full { width: 100%; }
.link { font-family: var(--mono); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; text-underline-offset: 6px; }

/* Nav */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; display: flex; align-items: center; gap: 32px; padding: 16px var(--gutter); background: rgba(17,17,17,0.92); backdrop-filter: blur(8px); color: var(--white); }
.nav__logo img { height: 28px; width: auto; }
.nav__links { display: flex; gap: 28px; margin-left: auto; }
.nav__links a { font-family: var(--mono); font-weight: 700; font-size: 13px; text-transform: uppercase; text-decoration: none; color: #bdbdbd; }
.nav__links a:hover { color: var(--white); }
.nav__cta { padding: 10px 18px; font-size: 12px; }

/* Hero */
.hero { position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; padding-top: 120px; overflow: hidden; }
.hero > * { width: 100%; max-width: var(--max); margin-left: auto; margin-right: auto; }
.hero__title { font-size: clamp(44px, 9vw, 132px); line-height: 0.98; font-weight: 700; letter-spacing: -0.03em; margin-bottom: 56px; }
.hero__title span { display: block; }
.hero__title .indent { padding-left: 0.4em; }
.hero__title .muted { color: #9a9a9a; }
.hero__foot { display: flex; flex-wrap: wrap; gap: 32px 64px; align-items: flex-end; justify-content: space-between; }
.hero__lede { max-width: 520px; font-size: 18px; color: #cfcfcf; }
.hero__actions { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.hero__square { position: absolute; width: clamp(140px, 22vw, 300px); right: var(--gutter); top: 22%; opacity: 0.08; margin: 0; pointer-events: none; }

/* Split sections */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: center; max-width: calc(var(--max) + 2 * var(--gutter)); margin: 0 auto; }
.split__text p:not(.label) { font-size: 18px; color: #333; margin-bottom: 16px; max-width: 520px; }
.split__img { border: 3px solid var(--ink); }
.split__img img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; }
.split--reverse { background: var(--paper); max-width: none; padding-left: max(var(--gutter), calc((100% - var(--max)) / 2)); padding-right: max(var(--gutter), calc((100% - var(--max)) / 2)); }

/* Services */
.services__grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px 32px; }
.card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; margin-bottom: 20px; filter: grayscale(1) contrast(1.05); transition: filter .3s; }
.card:hover img { filter: grayscale(1) contrast(1.25); }
.card .label { margin-bottom: 8px; }
.card h3 { margin-bottom: 10px; }
.card p:last-child { color: #444; }

/* Beliefs */
.beliefs > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.beliefs__list { list-style: none; }
.beliefs__list li { font-size: clamp(26px, 4.6vw, 60px); font-weight: 700; text-transform: uppercase; letter-spacing: -0.02em; line-height: 1.1; padding: 28px 0; border-bottom: 1px solid var(--line-dark); display: flex; gap: 24px; align-items: baseline; }
.beliefs__list li:first-child { border-top: 1px solid var(--line-dark); }
.beliefs__list .mono { font-size: 16px; color: var(--grey); flex: none; }

/* Process */
.process__list { max-width: var(--max); margin: 0 auto; list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.process__list li { border-top: 3px solid var(--ink); padding-top: 24px; }
.process__list .mono { display: block; font-size: 14px; color: var(--grey); margin-bottom: 16px; }
.process__list h3 { margin-bottom: 10px; }
.process__list p { color: #444; }

/* Clients */
.clients { background: var(--paper); }
.clients__grid { max-width: var(--max); margin: 0 auto; list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px dotted #999; border-left: 1px dotted #999; }
.clients__grid li { border-right: 1px dotted #999; border-bottom: 1px dotted #999; min-height: 120px; display: flex; align-items: center; justify-content: center; text-align: center; padding: 16px; font-weight: 700; font-size: clamp(16px, 2vw, 24px); text-transform: uppercase; letter-spacing: -0.01em; }

/* Brief */
.brief { display: grid; grid-template-columns: 5fr 7fr; gap: clamp(40px, 6vw, 96px); padding-left: max(var(--gutter), calc((100% - var(--max)) / 2)); padding-right: max(var(--gutter), calc((100% - var(--max)) / 2)); }
.brief__intro p:not(.label) { color: #cfcfcf; font-size: 18px; margin-bottom: 16px; }
.brief__contact a { color: var(--white); }
.form { display: grid; gap: 20px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form label { display: grid; gap: 8px; font-family: var(--mono); font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: #bdbdbd; }
.form input[type=text], .form input[type=email], .form input[type=tel], .form select, .form textarea { font: 16px var(--sans); color: var(--white); background: transparent; border: 0; border-bottom: 1px solid #555; padding: 10px 0; border-radius: 0; outline: none; text-transform: none; letter-spacing: 0; }
.form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, #bdbdbd 50%), linear-gradient(135deg, #bdbdbd 50%, transparent 50%); background-position: calc(100% - 12px) 55%, calc(100% - 6px) 55%; background-size: 6px 6px; background-repeat: no-repeat; }
.form select option { color: var(--black); }
.form input:focus, .form select:focus, .form textarea:focus { border-bottom-color: var(--white); }
.form textarea { resize: vertical; border: 1px solid #555; padding: 12px; }
.form textarea:focus { border-color: var(--white); }
.form ::placeholder { color: #6f6f6f; }
.form .invalid { border-color: #e0e0e0 !important; background-color: rgba(255,255,255,0.06); }
.form__chips { border: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.form__chips legend { font-family: var(--mono); font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: #bdbdbd; margin-bottom: 12px; }
.form__chips .hint { color: #777; margin-left: 8px; }
.form__chips label { display: inline-block; cursor: pointer; }
.form__chips input { position: absolute; opacity: 0; pointer-events: none; }
.form__chips label span { display: inline-block; padding: 9px 14px; border: 1px solid #555; color: #cfcfcf; font-size: 12px; transition: all .15s; }
.form__chips input:checked + span { background: var(--white); color: var(--black); border-color: var(--white); }
.form__chips input:focus-visible + span { outline: 2px solid var(--white); outline-offset: 2px; }
.form__status { font-family: var(--mono); font-size: 14px; min-height: 20px; color: var(--white); }
.hp { position: absolute; left: -9999px; }

/* Footer */
.footer { padding: 72px var(--gutter) 32px; border-top: 1px solid var(--line-dark); }
.footer > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.footer__logo { height: 48px; width: auto; margin-bottom: 48px; margin-left: max(0px, calc((100% - var(--max)) / 2)); }
.footer__cols { display: flex; gap: 96px; flex-wrap: wrap; margin-bottom: 72px; }
.footer__cols a, .footer__cols p:not(.label) { display: block; font-size: 18px; font-weight: 700; text-decoration: none; margin-bottom: 6px; }
.footer__cols a:hover { text-decoration: underline; }
.footer__base { display: flex; justify-content: space-between; font-size: 12px; color: var(--grey); padding-top: 24px; border-top: 1px solid var(--line-dark); }

/* Responsive */
@media (max-width: 900px) {
  .services__grid { grid-template-columns: 1fr 1fr; }
  .process__list { grid-template-columns: 1fr; }
  .clients__grid { grid-template-columns: repeat(2, 1fr); }
  .brief { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav__links { display: none; }
  .nav__cta { margin-left: auto; }
  .split { grid-template-columns: 1fr; }
  .split--reverse .split__img { order: 2; }
  .services__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .hero__title .indent { padding-left: 0; }
  .footer__cols { gap: 40px; }
}