:root {
  --ink: #111;
  --ink-2: #4a4a48;
  --line: #e4e2de;
  --paper: #ffffff;
  --soft: #f5f4f1;
  --display: "Oswald", "Arial Narrow", sans-serif;
  --text: "Manrope", system-ui, sans-serif;
  --gutter: clamp(16px, 4vw, 56px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.6 var(--text);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 400; }

.eyebrow {
  margin: 0 0 18px;
  font: 500 12px/1 var(--text);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  border: 1px solid var(--ink);
  font: 500 13px/1 var(--text);
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s, color .2s;
}
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark:hover { background: #fff; color: var(--ink); }

/* ---------- nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 18px var(--gutter);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, .06);
}
.nav__logo {
  font: 400 22px/1 var(--display);
  letter-spacing: .32em;
  text-decoration: none;
}
.nav__links { display: flex; gap: 28px; margin-left: auto; }
.nav__links a { font-size: 14px; text-decoration: none; color: var(--ink-2); }
.nav__links a:hover { color: var(--ink); }
.nav__cta { min-height: 40px; padding: 0 18px; font-size: 11px; }

/* ---------- scroll film ---------- */
.film { position: relative; height: 900vh; }
.film__stage {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  overflow: hidden;
  background: var(--paper);
}
.film__poster, .film__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.film[data-ready="true"] .film__poster { visibility: hidden; }

.chapter {
  position: absolute;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity .45s ease, transform .45s ease, visibility 0s .45s;
}
.chapter.is-on {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity .45s ease, transform .45s ease;
}

.chapter--hero {
  left: var(--gutter);
  top: 50%;
  translate: 0 -46%;
  width: min(460px, 38vw);
  padding: 28px 0;
}
.chapter--hero::before {
  /* white wash so the text reads over the pencil plan */
  content: "";
  position: absolute;
  inset: -40px -60px -40px calc(-1 * var(--gutter));
  z-index: -1;
  background: radial-gradient(closest-side, rgba(255, 255, 255, .95), rgba(255, 255, 255, .8) 70%, rgba(255, 255, 255, 0));
}
.wordmark {
  display: block;
  margin-bottom: 22px;
  font: 400 clamp(34px, 4.2vw, 64px)/1 var(--display);
  letter-spacing: .3em;
}
.hero__title {
  font: 300 clamp(26px, 2.6vw, 40px)/1.15 var(--display);
  letter-spacing: .02em;
  text-transform: uppercase;
}
.hero__sub { margin: 18px 0 28px; color: var(--ink-2); max-width: 380px; }
.hero__actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.hint { font-size: 12px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-2); }

.chapter--card {
  left: var(--gutter);
  bottom: clamp(24px, 6vh, 64px);
  width: min(420px, calc(100% - 2 * var(--gutter)));
  padding: 28px 30px 30px;
  background: rgba(255, 255, 255, .93);
  backdrop-filter: blur(8px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .12);
}
.chapter--card h2 {
  margin-bottom: 12px;
  font: 400 clamp(22px, 2vw, 30px)/1.15 var(--display);
  text-transform: uppercase;
  letter-spacing: .02em;
}
.chapter--card p { margin: 0; color: var(--ink-2); font-size: 15px; }
.chapter--card .btn { margin-top: 22px; }
.chapter__num {
  margin: 0 0 14px !important;
  font: 500 11px/1 var(--text) !important;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--ink) !important;
}

.film__progress {
  position: absolute;
  right: var(--gutter);
  top: 50%;
  width: 2px;
  height: 120px;
  translate: 0 -50%;
  background: rgba(0, 0, 0, .12);
}
.film__progress span {
  position: absolute;
  inset: 0 0 auto;
  height: calc(var(--p, 0) * 100%);
  background: var(--ink);
}

/* full-quality frames are heavy: hold the page until every frame is in */
.loader {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 22px;
  background: var(--paper);
  transition: opacity .6s ease, visibility 0s .6s;
}
.loader__logo { font: 400 clamp(28px, 4vw, 48px)/1 var(--display); letter-spacing: .32em; }
.loader__bar { position: relative; width: min(320px, 70vw); height: 1px; background: var(--line); }
.loader__bar span { position: absolute; inset: 0 auto 0 0; width: calc(var(--load, 0) * 100%); background: var(--ink); }
.loader__pct { font: 500 12px/1 var(--text); letter-spacing: .22em; color: var(--ink-2); }
.film[data-loaded="true"] .loader { opacity: 0; visibility: hidden; }
body:has(.film:not([data-loaded="true"])) { overflow: hidden; }

/* ---------- sections ---------- */
.section { padding: clamp(80px, 12vw, 160px) var(--gutter); border-top: 1px solid var(--line); }
.section--soft { background: var(--soft); }
.section__head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 72px); }
.section__title {
  font: 300 clamp(34px, 4.4vw, 64px)/1.05 var(--display);
  text-transform: uppercase;
  letter-spacing: .02em;
}

.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--ink); }
.tile { padding: 28px 28px 8px 0; border-right: 1px solid var(--line); }
.tile + .tile { padding-left: 28px; }
.tile:last-child { border-right: 0; }
.tile__num { font: 500 12px/1 var(--text); letter-spacing: .2em; color: var(--ink-2); }
.tile h3 { margin: 26px 0 12px; font: 400 26px/1.1 var(--display); text-transform: uppercase; letter-spacing: .04em; }
.tile p { margin: 0; color: var(--ink-2); font-size: 15px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; }
.steps li { background: #fff; padding: 32px 28px 36px; }
.steps span { font: 300 44px/1 var(--display); color: #c9c6bf; }
.steps h3 { margin: 22px 0 10px; font: 400 22px/1.1 var(--display); text-transform: uppercase; letter-spacing: .04em; }
.steps p { margin: 0; color: var(--ink-2); font-size: 15px; }

.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact .section__head { margin: 0; }
.contact__lead { margin: 22px 0 0; color: var(--ink-2); max-width: 420px; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.form label { display: grid; gap: 8px; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); }
.form input, .form select {
  height: 52px;
  padding: 0 14px;
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  font: 400 17px var(--text);
  color: var(--ink);
  border-radius: 0;
}
.form input:focus, .form select:focus { outline: none; border-bottom-width: 2px; }
.form__wide { grid-column: 1 / -1; }
.form__done { margin: 0; color: var(--ink-2); }

.footer {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  align-items: center;
  padding: 36px var(--gutter);
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-2);
}
.footer .nav__logo { color: var(--ink); margin-right: auto; font-size: 18px; }

/* ---------- phone ---------- */
@media (max-width: 860px) {
  .nav { gap: 12px; padding: 14px 16px; }
  .nav__links { display: none; }
  .nav__logo { font-size: 18px; letter-spacing: .26em; }
  .nav__cta { margin-left: auto; padding: 0 14px; }

  .film { height: 800vh; }
  .chapter--hero {
    left: 16px;
    right: 16px;
    top: auto;
    bottom: 28px;
    translate: none;
    width: auto;
    padding: 24px 22px;
    background: rgba(255, 255, 255, .92);
    box-shadow: 0 18px 50px rgba(0, 0, 0, .1);
  }
  .chapter--hero::before { display: none; }
  .chapter--hero { bottom: 16px; padding: 18px 20px 20px; }
  .chapter--hero .eyebrow { margin-bottom: 12px; font-size: 10px; }
  .wordmark { font-size: 28px; margin-bottom: 10px; }
  .hero__title { font-size: 22px; }
  .hero__sub { margin: 10px 0 16px; font-size: 14px; line-height: 1.5; }
  .chapter--hero .btn { min-height: 44px; }
  .hint { display: none; }
  .chapter--card { left: 16px; right: 16px; width: auto; bottom: 16px; padding: 16px 18px 18px; }
  .chapter--card h2 { margin-bottom: 8px; font-size: 19px; }
  .chapter--card p { font-size: 13px; line-height: 1.5; }
  .chapter--card .btn { margin-top: 14px; min-height: 42px; }
  .chapter__num { margin-bottom: 10px !important; }
  .film__progress { display: none; }

  .grid4, .steps { grid-template-columns: 1fr; }
  .tile, .tile + .tile { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .contact { grid-template-columns: 1fr; gap: 40px; }
  .form { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .chapter { transition: none; }
}