:root {
  color-scheme: light;
  --ink: #171a15;
  --muted: #656a61;
  --paper: #f1f0e8;
  --white: #fbfaf5;
  --night: #10120f;
  --line: #d5d2c5;
  --dark-line: #34382f;
  --acid: #c8f15a;
  --green: #779b1c;
  --blue: #405fa8;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; background: var(--white); color: var(--ink); font-family: var(--sans); }
a { color: inherit; text-decoration: none; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 68px;
  padding-inline: max(20px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid rgba(16, 18, 15, .12);
  background: rgba(251, 250, 245, .92);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 11px; font-weight: 850; letter-spacing: -.035em; }
.brand-mark { display: grid; place-items: center; width: 37px; height: 37px; border-radius: 50%; background: var(--night); color: var(--acid); font-size: 10px; }
nav { display: flex; align-items: center; gap: 25px; color: var(--muted); font-size: 13px; }
nav a:hover { color: var(--ink); }
.nav-contact { padding: 10px 16px; border-radius: 999px; background: var(--night); color: var(--white); font-weight: 800; }

.hero {
  min-height: 720px;
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  gap: 92px;
  align-items: center;
  padding-block: 95px 90px;
}
.eyebrow { margin: 0; color: #aeb3a7; font-size: 10px; font-weight: 900; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow.dark { color: var(--muted); }
.eyebrow > span { display: inline-block; width: 7px; height: 7px; margin-right: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(121, 157, 27, .11); }
.hero h1 { max-width: 820px; margin: 22px 0 30px; font-family: var(--serif); font-size: clamp(65px, 8.2vw, 116px); font-weight: 400; line-height: .88; letter-spacing: -.075em; }
h1 em, h2 em { color: var(--green); font-weight: 400; }
.hero-lede { max-width: 720px; margin: 0; color: #555a51; font-size: 21px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 38px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 15px; padding: 0 23px; border-radius: 999px; font-size: 13px; font-weight: 850; transition: transform .18s ease, background .18s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--night); color: var(--white); }
.text-link { color: var(--muted); font-size: 12px; font-weight: 750; }
.text-link span { margin-left: 8px; color: var(--green); }

.hero-object { position: relative; min-height: 460px; }
.raw-stack { position: absolute; inset: 24px 58px auto 0; display: grid; gap: 10px; transform: rotate(-3deg); }
.raw-stack span { display: block; padding: 24px; border: 1px solid var(--line); background: var(--paper); color: #8b8f86; font: 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .04em; }
.clarity-card { position: absolute; right: 0; bottom: 24px; width: min(360px, 90%); padding: 30px; border: 1px solid #b7b4a8; background: var(--white); box-shadow: 16px 16px 0 var(--acid); }
.card-label { color: var(--green); font-size: 9px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.clarity-card > strong { display: block; margin: 55px 0 28px; font-family: var(--serif); font-size: 31px; font-weight: 400; line-height: 1.15; }
.clarity-card div { display: flex; justify-content: space-between; padding: 11px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.clarity-card b { color: var(--ink); }

.promise-strip { border-block: 1px solid var(--line); background: var(--paper); }
.promise-strip .shell { min-height: 70px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; }
.promise-strip span { padding: 12px 20px; border-right: 1px solid var(--line); color: var(--muted); font-size: 10px; font-weight: 800; letter-spacing: .11em; text-align: center; text-transform: uppercase; }
.promise-strip span:last-child { border-right: 0; }

.product-section { padding-block: 125px; }
.section-heading { display: grid; grid-template-columns: 1.15fr .85fr; gap: 100px; align-items: end; margin-bottom: 62px; }
.section-heading h2, .contact-grid h2 { margin: 14px 0 0; font-family: var(--serif); font-size: clamp(51px, 6vw, 82px); font-weight: 400; line-height: .94; letter-spacing: -.06em; }
.section-heading > p { max-width: 520px; margin: 0; color: var(--muted); line-height: 1.75; }
.product-showcase { display: grid; grid-template-columns: 1.35fr .65fr; gap: 55px; align-items: center; padding-top: 42px; border-top: 1px solid var(--line); }
.product-window { overflow: hidden; border: 1px solid #b9b6aa; background: var(--white); box-shadow: 18px 18px 0 var(--paper); }
.window-bar { display: flex; align-items: center; gap: 7px; min-height: 42px; padding: 0 16px; border-bottom: 1px solid var(--line); background: var(--paper); }
.window-bar span { width: 8px; height: 8px; border-radius: 50%; background: #b6b9ae; }
.window-bar b { margin-left: auto; color: var(--muted); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.change-preview { min-height: 395px; display: grid; grid-template-columns: 160px 1fr; }
.change-preview aside { display: flex; flex-direction: column; gap: 5px; padding: 28px 18px; border-right: 1px solid var(--line); background: #f7f6f0; }
.change-preview aside span { padding: 10px 11px; color: var(--muted); font-size: 10px; }
.change-preview aside .active { background: var(--night); color: var(--white); }
.change-preview > div { display: flex; flex-direction: column; gap: 12px; padding: 42px 35px; font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace; }
.change-preview small { margin-top: 17px; color: var(--muted); font-family: var(--sans); font-size: 8px; font-weight: 900; letter-spacing: .12em; }
.change-preview del, .change-preview ins { padding: 13px; text-decoration: none; }
.change-preview del { border-left: 3px solid #c47763; background: #fff1ed; color: #7c4e43; }
.change-preview ins { border-left: 3px solid var(--blue); background: #edf1ff; color: #314d91; }
.product-copy { padding-left: 10px; }
.product-number { color: var(--green); font: 12px/1 var(--sans); font-weight: 900; }
.product-copy h3 { margin: 20px 0; font-family: var(--serif); font-size: clamp(47px, 5vw, 67px); font-weight: 400; line-height: .95; letter-spacing: -.06em; }
.product-copy > p { color: var(--muted); line-height: 1.7; }
.product-copy ul { margin: 27px 0 31px; padding: 0; list-style: none; }
.product-copy li { padding: 11px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.product-copy li::before { content: "✓"; margin-right: 10px; color: var(--green); font-weight: 900; }

.difference-section { padding-block: 120px; background: var(--night); color: var(--white); }
.section-heading.inverse > p { color: #aeb3a7; }
.difference-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--dark-line); }
.difference-grid article { min-height: 285px; display: flex; flex-direction: column; padding: 29px; border-right: 1px solid var(--dark-line); }
.difference-grid article:last-child { border-right: 0; }
.difference-grid article > span { color: var(--acid); font-size: 10px; font-weight: 900; }
.difference-grid h3 { margin: auto 0 12px; font-family: var(--serif); font-size: 29px; font-weight: 400; }
.difference-grid p { margin: 0; color: #9ca196; font-size: 13px; line-height: 1.65; }

.contact-section { padding-block: 115px; background: var(--acid); }
.contact-grid { display: grid; grid-template-columns: 1fr .7fr; gap: 100px; align-items: end; }
.contact-grid > div:last-child > p { max-width: 480px; line-height: 1.7; }
.contact-grid a { display: inline-flex; gap: 14px; margin-top: 23px; padding-bottom: 5px; border-bottom: 2px solid var(--night); font-size: clamp(22px, 3vw, 37px); font-weight: 850; letter-spacing: -.04em; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
footer .shell { display: flex; justify-content: space-between; padding-block: 34px; }
footer div > div { display: flex; gap: 13px; }
footer strong { color: var(--ink); }

@media (max-width: 900px) {
  .hero, .section-heading, .product-showcase, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding-top: 90px; }
  .hero-object { min-height: 420px; max-width: 620px; }
  .difference-grid { grid-template-columns: 1fr; }
  .difference-grid article { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--dark-line); }
  .difference-grid article:last-child { border-bottom: 0; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 1180px); }
  .site-header { padding-inline: 14px; }
  nav a:not(.nav-contact) { display: none; }
  .hero { min-height: auto; padding-block: 80px 65px; }
  .hero h1 { font-size: 59px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-object { min-height: 365px; }
  .raw-stack { right: 28px; }
  .clarity-card { right: 9px; width: 88%; }
  .promise-strip .shell { grid-template-columns: 1fr 1fr; }
  .promise-strip span:nth-child(2) { border-right: 0; }
  .promise-strip span:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .change-preview { grid-template-columns: 1fr; }
  .change-preview aside { display: none; }
  .change-preview > div { padding: 28px 20px; }
  .product-section, .difference-section, .contact-section { padding-block: 85px; }
  footer .shell, footer div > div { align-items: flex-start; flex-direction: column; gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}