:root {
  --paper: #f0ede3;
  --ink: #181916;
  --signal: #d9ff43;
  --line: #262722;
  --muted: #6c6d64;
  --max: 1500px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
button, input { font: inherit; }
::selection { background: var(--signal); color: var(--ink); }

.skip-link {
  position: fixed;
  z-index: 10;
  top: .75rem;
  left: .75rem;
  padding: .65rem .85rem;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-200%);
}
.skip-link:focus { transform: translateY(0); }

.site-header, main, footer { max-width: var(--max); margin-inline: auto; }
.site-header {
  min-height: 86px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 1rem clamp(1rem, 3vw, 3.5rem);
  border-bottom: 2px solid var(--line);
}
.wordmark, .header-link { font-size: .78rem; font-weight: 800; letter-spacing: .08em; text-decoration: none; }
.header-link { justify-self: end; border-bottom: 1px solid currentColor; }
.header-note { margin: 0; text-align: center; font: 700 .64rem/1.15 "Courier New", monospace; letter-spacing: .12em; }

.hero {
  display: grid;
  grid-template-columns: minmax(110px, 18%) 1fr;
  min-height: calc(100svh - 86px);
  border-bottom: 2px solid var(--line);
}
.folio, .section-index {
  margin: 0;
  padding: 2rem clamp(1rem, 3vw, 3.5rem);
  border-right: 2px solid var(--line);
  font: 700 .65rem/1.2 "Courier New", monospace;
  letter-spacing: .1em;
}
.hero-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(2.25rem, 7vw, 7rem) clamp(1rem, 4vw, 5rem) clamp(2.5rem, 5vw, 5rem);
}
.eyebrow { margin: 0 0 3rem; font: 700 .72rem/1.2 "Courier New", monospace; letter-spacing: .1em; }
h1 {
  max-width: 1050px;
  margin: auto 0;
  font-size: clamp(3.15rem, 8.5vw, 9rem);
  font-weight: 900;
  line-height: .84;
  letter-spacing: -.07em;
  overflow-wrap: anywhere;
}
.subtitle { max-width: 720px; margin: clamp(3rem, 7vw, 7rem) 0 0 auto; font-size: clamp(1.15rem, 2.1vw, 1.9rem); line-height: 1.15; letter-spacing: -.025em; }

.body-section, .signup {
  display: grid;
  grid-template-columns: minmax(110px, 18%) 1fr;
  border-bottom: 2px solid var(--line);
}
.section-index { display: flex; justify-content: space-between; flex-direction: column; }
.body-copy { max-width: 900px; padding: clamp(4rem, 9vw, 9rem) clamp(1rem, 6vw, 8rem); }
.body-copy p { margin: 0 0 1.5em; font-family: Georgia, "Times New Roman", serif; font-size: clamp(1.5rem, 3.1vw, 2.8rem); line-height: 1.16; letter-spacing: -.025em; }
.body-copy p:last-child { margin-bottom: 0; }

.signup {
  min-height: 82svh;
  background: var(--paper);
  color: var(--ink);
  border-color: var(--line);
}
.section-index--light { border-color: var(--line); }
.signup-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(5rem, 10vw, 11rem) clamp(1rem, 6vw, 8rem);
}
.signup h2 {
  max-width: 1100px;
  margin: 0 0 1.25rem;
  font-size: clamp(3.25rem, 8vw, 8.5rem);
  line-height: .84;
  letter-spacing: -.07em;
}
.signup-copy > p {
  max-width: 760px;
  margin: 0 0 clamp(3rem, 7vw, 6rem);
  font-size: clamp(1.15rem, 2.1vw, 1.8rem);
  line-height: 1.2;
}
.email-form {
  width: 100%;
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 0;
  border-top: 4px solid var(--line);
}
.email-form label {
  display: block;
  margin-bottom: 1rem;
  font: 800 .82rem/1 "Courier New", monospace;
  letter-spacing: .14em;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr minmax(190px, auto);
  border: 3px solid var(--line);
}
.field-row input {
  min-width: 0;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: clamp(1.25rem, 2.5vw, 2rem);
}
.field-row input::placeholder { color: var(--muted); }
.field-row:focus-within { outline: 4px solid var(--signal); outline-offset: 4px; }
.field-row button {
  min-height: 100%;
  padding: 1rem clamp(1.5rem, 3vw, 3rem);
  border: 0;
  border-left: 3px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  font-weight: 900;
  letter-spacing: .04em;
  cursor: pointer;
}
.field-row button:hover, .field-row button:focus-visible {
  background: var(--signal);
  color: var(--ink);
}
.field-row button:disabled { cursor: wait; opacity: .55; }
.form-note, .form-status {
  margin: 1rem 0 0;
  font: .78rem/1.5 "Courier New", monospace;
  color: var(--muted);
}
.form-note a { text-underline-offset: .18em; }
.form-status { min-height: 1.2rem; color: var(--ink); font-weight: 700; }
.honeypot { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip: rect(0 0 0 0) !important; }

footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.25rem clamp(1rem, 3vw, 3.5rem); font: 700 .62rem/1.3 "Courier New", monospace; letter-spacing: .08em; }
footer p { margin: 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; }
.footer-links a { text-underline-offset: .2em; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

@media (max-width: 650px) {
  .site-header { grid-template-columns: 1fr auto; min-height: 70px; }
  .header-note { display: none; }
  .hero { min-height: calc(100svh - 70px); }
  .hero, .body-section, .signup { grid-template-columns: 42px 1fr; }
  .folio, .section-index { padding: 1.25rem .65rem; writing-mode: vertical-rl; transform: rotate(180deg); align-items: center; }
  .hero-copy { padding-block: 2.5rem; }
  h1 { font-size: clamp(2.9rem, 14vw, 4.8rem); }
  .subtitle { margin-top: 3rem; }
  .body-copy, .signup-copy { padding: 4rem 1.1rem; }
  .signup { min-height: 75svh; }
  .signup h2 { font-size: clamp(3rem, 15vw, 5rem); }
  .field-row { grid-template-columns: 1fr; }
  .field-row button {
    width: 100%;
    min-height: 64px;
    border-left: 0;
    border-top: 3px solid var(--line);
  }
  footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }