:root {
  --ink: #171915;
  --paper: #f4f1e8;
  --white: #fffefa;
  --green: #b9f56a;
  --green-dark: #6f9f32;
  --coral: #ff684e;
  --line: rgba(23, 25, 21, 0.16);
  --muted: #66695f;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", sans-serif;
  line-height: 1.55;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }

.topbar {
  position: sticky;
  z-index: 50;
  top: 0;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 64px);
  background: rgba(23, 25, 21, 0.96);
  color: var(--white);
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-size: 14px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.brand-mark { padding-right: 12px; border-right: 1px solid rgba(255,255,255,.24); font-size: 15px; letter-spacing: .14em; }
.topbar nav { display: flex; align-items: center; gap: 28px; }
.topbar nav a { font-size: 14px; text-decoration: none; }
.topbar nav a:hover { color: var(--green); }
.topbar .nav-download { padding: 10px 17px; border-radius: 999px; background: var(--green); color: var(--ink); font-weight: 700; }
.topbar .nav-download:hover { background: white; color: var(--ink); }

main { overflow: hidden; }
.hero {
  min-height: 670px;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(320px, .75fr);
  gap: 8vw;
  align-items: center;
  padding: 86px clamp(24px, 7vw, 112px);
  background:
    radial-gradient(circle at 66% 20%, rgba(185,245,106,.3), transparent 27%),
    linear-gradient(115deg, #fffefa 0%, #f2eee2 60%, #e5e0d4 100%);
  border-bottom: 1px solid var(--line);
}
.eyebrow { margin: 0 0 18px; font: 700 12px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .14em; color: var(--green-dark); }
.hero h1 { max-width: 850px; margin: 0; font-size: clamp(58px, 7.1vw, 116px); line-height: .91; letter-spacing: -.075em; }
.lead { max-width: 650px; margin: 30px 0 0; font-size: clamp(18px, 1.55vw, 24px); color: var(--muted); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 24px; border: 1px solid var(--ink); border-radius: 999px; text-decoration: none; font-size: 14px; font-weight: 750; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: white; }
.button-primary span { margin-left: 14px; color: var(--green); font-weight: 500; }
.button-ghost { background: transparent; }
.hero-note { position: relative; padding: 38px; border-radius: 2px 60px 2px 2px; background: var(--coral); color: var(--ink); box-shadow: 22px 22px 0 rgba(23,25,21,.08); transform: rotate(1.2deg); }
.note-index { font: 700 11px ui-monospace, monospace; letter-spacing: .12em; }
.hero-note h2 { margin: 50px 0 18px; font-size: clamp(26px, 2.4vw, 40px); line-height: 1.08; letter-spacing: -.04em; }
.hero-note p { font-size: 15px; }
.note-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 26px; }
.note-tags span { padding: 6px 10px; border: 1px solid rgba(23,25,21,.35); border-radius: 999px; font-size: 11px; font-weight: 700; }

.intro { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; max-width: 1440px; margin: 0 auto; padding: 112px clamp(24px, 5vw, 80px) 46px; }
.intro h2, .logos h2, .checklist h2 { margin: 0; font-size: clamp(40px, 5vw, 72px); line-height: .98; letter-spacing: -.055em; }
.intro > p { max-width: 620px; margin: 0; color: var(--muted); font-size: 17px; }
.product-jump { max-width: 1280px; margin: 0 auto 80px; display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-jump a { padding: 20px 16px; border-right: 1px solid var(--line); text-decoration: none; font-size: 13px; font-weight: 700; }
.product-jump a:last-child { border-right: 0; }
.product-jump a:hover { background: var(--green); }
.product-jump span { display: block; margin-bottom: 6px; color: var(--muted); font: 11px ui-monospace, monospace; }

.product { max-width: 1440px; margin: 0 auto; padding: 46px clamp(24px, 5vw, 80px) 120px; scroll-margin-top: 72px; }
.product + .product { border-top: 1px solid var(--line); }
.product-heading { display: grid; grid-template-columns: 72px minmax(0,1fr) auto; gap: 24px; align-items: center; margin-bottom: 34px; }
.product-number { width: 58px; height: 58px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; font: 700 14px ui-monospace, monospace; }
.sku { margin: 0 0 5px; font: 700 11px ui-monospace, monospace; letter-spacing: .08em; color: var(--green-dark); }
.product-heading h2 { margin: 0; font-size: clamp(27px, 3vw, 46px); line-height: 1.05; letter-spacing: -.045em; }
.subtitle { margin: 8px 0 0; color: var(--muted); }
.download-pack { display: flex; flex-direction: column; min-width: 172px; padding: 14px 20px; border-radius: 12px; background: var(--ink); color: white; text-align: center; text-decoration: none; font-size: 13px; font-weight: 750; }
.download-pack span { margin-top: 2px; color: var(--green); font-size: 11px; font-weight: 500; }
.download-pack:hover { background: var(--green); color: var(--ink); }
.download-pack:hover span { color: var(--ink); }
.alert { display: grid; grid-template-columns: 110px 1fr; gap: 18px; align-items: center; margin: -8px 0 28px 96px; padding: 14px 18px; border-left: 4px solid var(--coral); background: rgba(255,104,78,.1); font-size: 13px; }
.alert span { font-weight: 800; color: #bc321f; }
.alert p { margin: 0; }
.alert.neutral { border-color: #92bd56; background: rgba(185,245,106,.14); }
.alert.neutral span { color: #527729; }
.product-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(340px, .8fr); gap: 18px; }
.artwork-panel, .reference-panel { padding: 18px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
.panel-label { display: flex; align-items: center; justify-content: space-between; margin-bottom: 15px; }
.panel-label span { font: 700 10px ui-monospace, monospace; letter-spacing: .12em; color: var(--muted); }
.panel-label strong { font-size: 13px; }
.image-button { position: relative; width: 100%; padding: 0; overflow: hidden; cursor: zoom-in; background: #ecebe6; border: 0; border-radius: 11px; }
.image-button img { width: 100%; height: 100%; object-fit: contain; transition: transform .35s ease; }
.image-button:hover img { transform: scale(1.018); }
.artwork-panel > .image-button { height: 590px; }
.artwork-panel > .image-button.landscape { height: 460px; }
.image-button.checker { background-color: #fff; background-image: linear-gradient(45deg,#ddd 25%,transparent 25%),linear-gradient(-45deg,#ddd 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#ddd 75%),linear-gradient(-45deg,transparent 75%,#ddd 75%); background-size: 22px 22px; background-position: 0 0,0 11px,11px -11px,-11px 0; }
.image-button.paper { background: #f8f6f0; }
.image-button.paper img { padding: 20px; }
.zoom-hint { position: absolute; right: 14px; bottom: 14px; padding: 6px 10px; border-radius: 999px; background: rgba(23,25,21,.88); color: white; font-size: 11px; }
.file-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 4px 2px; }
.file-row div { display: flex; flex-direction: column; }
.file-row strong { font-size: 14px; }
.file-row span { color: var(--muted); font: 11px ui-monospace, monospace; }
.file-row a { flex: none; padding: 9px 14px; border: 1px solid var(--ink); border-radius: 999px; text-decoration: none; font-size: 12px; font-weight: 800; }
.file-row a:hover { background: var(--green); }
.reference-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.reference-grid .image-button { height: 205px; }
.reference-grid .wide { grid-column: 1 / -1; height: 260px; }
.production-note { margin-top: 18px; padding: 18px; border-radius: 10px; background: #eff2e9; }
.production-note strong { font-size: 12px; }
.production-note p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.logos { display: grid; grid-template-columns: .72fr 1.28fr; gap: 8vw; padding: 110px clamp(24px, 7vw, 112px); background: var(--green); }
.logo-copy > p:not(.eyebrow) { max-width: 520px; font-size: 17px; }
.logo-copy .eyebrow { color: #3f6220; }
.logo-rule { padding-top: 22px; border-top: 1px solid rgba(23,25,21,.3); color: #425332; }
.logo-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.logo-options.product-wordmarks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.logo-option { min-width: 0; overflow: hidden; border: 1px solid rgba(23,25,21,.18); border-radius: 14px; background: rgba(255,255,255,.7); }
.logo-option > div { height: 180px; display: grid; place-items: center; padding: 25px; }
.logo-option img { max-width: 88%; max-height: 94px; object-fit: contain; }
.logo-option h3, .logo-option p, .logo-option > span { margin-left: 18px; margin-right: 18px; }
.logo-option h3 { margin-bottom: 0; font-size: 16px; }
.logo-option p { margin-top: 2px; color: var(--muted); font-size: 11px; }
.logo-option > span { display: flex; gap: 8px; margin-top: 18px; margin-bottom: 18px; }
.logo-option > span a { flex: 1; padding: 8px; border: 1px solid var(--ink); border-radius: 999px; text-align: center; text-decoration: none; font-size: 11px; font-weight: 800; }
.logo-option > span a:hover { background: var(--ink); color: white; }
.dark-logo { background: #262921; color: white; }
.dark-logo p { color: #aeb0a8; }
.dark-logo > span a { border-color: white; }

.checklist { display: grid; grid-template-columns: .75fr 1.25fr; gap: 7vw; padding: 110px clamp(24px, 7vw, 112px); background: #fffefa; }
.checklist ol { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.checklist li { display: grid; grid-template-columns: 52px 1fr; gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.checklist li > span { color: var(--green-dark); font: 700 12px ui-monospace, monospace; }
.checklist li p { margin: 0; color: var(--muted); }
.checklist li strong { display: block; margin-bottom: 3px; color: var(--ink); }

footer { min-height: 140px; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 38px clamp(24px, 7vw, 112px); background: var(--ink); color: white; }
.footer-word { font-size: 18px; letter-spacing: .15em; }
footer p { color: #a7aaa0; font: 11px ui-monospace, monospace; letter-spacing: .08em; }
footer a { font-size: 13px; text-decoration: none; }

.lightbox { width: min(94vw, 1280px); height: min(92vh, 980px); padding: 0; border: 0; border-radius: 16px; background: #1f211d; color: white; box-shadow: 0 30px 100px rgba(0,0,0,.45); }
.lightbox::backdrop { background: rgba(10,11,9,.78); backdrop-filter: blur(8px); }
.lightbox > img { width: 100%; height: calc(100% - 66px); padding: 24px; object-fit: contain; }
.lightbox > div { height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 0 24px; border-top: 1px solid rgba(255,255,255,.15); }
.lightbox p { margin: 0; font-size: 13px; }
.lightbox a { padding: 8px 14px; border: 1px solid rgba(255,255,255,.5); border-radius: 999px; text-decoration: none; font-size: 12px; }
.lightbox-close { position: absolute; z-index: 2; top: 14px; right: 14px; width: 40px; height: 40px; border: 0; border-radius: 50%; background: rgba(0,0,0,.65); color: white; cursor: pointer; font-size: 24px; }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 55px; }
  .hero-note { max-width: 560px; }
  .product-grid { grid-template-columns: 1fr; }
  .artwork-panel > .image-button, .artwork-panel > .image-button.landscape { height: min(72vw, 590px); }
  .logos, .checklist { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .topbar { height: 64px; }
  .brand > span:last-child, .topbar nav > a:not(.nav-download) { display: none; }
  .topbar nav { gap: 8px; }
  .hero { min-height: auto; padding-top: 68px; }
  .hero h1 { font-size: clamp(51px, 17vw, 78px); }
  .intro { grid-template-columns: 1fr; padding-top: 80px; }
  .product-jump { grid-template-columns: 1fr 1fr; margin-left: 20px; margin-right: 20px; }
  .product-jump a { border-bottom: 1px solid var(--line); }
  .product-heading { grid-template-columns: 52px minmax(0,1fr); align-items: start; }
  .product-number { width: 44px; height: 44px; }
  .download-pack { grid-column: 1 / -1; }
  .alert { grid-template-columns: 1fr; margin-left: 0; }
  .reference-grid .image-button { height: 150px; }
  .reference-grid .wide { height: 210px; }
  .file-row { align-items: flex-start; }
  .logo-options { grid-template-columns: 1fr; }
  .logo-options.product-wordmarks { grid-template-columns: 1fr; }
  footer { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}