:root {
  color-scheme: light;
  --ink: #18201c;
  --muted: #667069;
  --paper: #f2f0e9;
  --paper-deep: #e8e5db;
  --green: #1e684d;
  --green-dark: #153f32;
  --line: rgba(24, 32, 28, 0.18);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: 1rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: var(--ink);
  color: white;
  transform: translateY(-160%);
}

.skip-link:focus-visible { transform: translateY(0); }

.site-header,
footer {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 1.5rem clamp(1.25rem, 4vw, 4.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header { border-bottom: 1px solid var(--line); }

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 760;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  font-family: Georgia, serif;
}

.header-link {
  color: var(--muted);
  font-size: 0.88rem;
  text-underline-offset: 0.25em;
  transition: color 160ms ease;
}

.header-link:hover { color: var(--ink); }

:focus-visible {
  outline: 3px solid #d78336;
  outline-offset: 4px;
}

main,
footer { width: min(1440px, 100%); margin-inline: auto; }

.hero {
  min-height: calc(100vh - 82px);
  padding: clamp(3rem, 8vw, 8rem) clamp(1.25rem, 4vw, 4.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 8rem);
  overflow: hidden;
}

.hero-copy { max-width: 720px; }

.eyebrow,
.section-number {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 2rem;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #3c9c70;
  box-shadow: 0 0 0 0.3rem rgba(60, 156, 112, 0.12);
}

h1,
h2,
h3,
p { text-wrap: pretty; }

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(4rem, 8.5vw, 8.5rem);
  font-weight: 400;
  letter-spacing: -0.07em;
  line-height: 0.84;
}

h1 em {
  color: var(--green);
  font-weight: 400;
}

.intro {
  max-width: 610px;
  margin: 2.5rem 0 2.75rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.7;
}

.signup { max-width: 600px; }
.field-group label { display: block; margin-bottom: 0.7rem; font-size: 0.85rem; font-weight: 700; }
.input-row { display: flex; gap: 0.65rem; }

input,
button { font: inherit; }

input {
  min-width: 0;
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  color: var(--ink);
  padding: 0.95rem 1.25rem;
  transition: border-color 160ms ease, background-color 160ms ease;
}

input:hover,
input:focus { border-color: var(--green); background: white; }

button {
  border: 0;
  border-radius: 999px;
  background: var(--green-dark);
  color: white;
  cursor: pointer;
  padding: 0.95rem 1.4rem;
  font-weight: 750;
  white-space: nowrap;
  transition: background-color 160ms ease, transform 160ms ease;
  touch-action: manipulation;
}

button:hover { background: #0d3025; transform: translateY(-1px); }
button:disabled { cursor: wait; opacity: 0.65; transform: none; }

.form-trap { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.form-note { margin: 0.75rem 0 0; color: var(--muted); font-size: 0.74rem; }
.form-status { min-height: 1.5rem; margin: 0.75rem 0 0; font-size: 0.86rem; font-weight: 700; }
.form-status[data-state="error"] { color: #9d3228; }
.form-status[data-state="success"] { color: var(--green); }

.hero-visual {
  position: relative;
  min-height: min(660px, 68vw);
  isolation: isolate;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 3%;
  border-radius: 44% 56% 59% 41% / 41% 42% 58% 59%;
  background:
    linear-gradient(rgba(18, 46, 36, 0.12), rgba(18, 46, 36, 0.36)),
    url("/assets/bg1.webp") center / cover;
  filter: saturate(0.55) contrast(0.9);
  box-shadow: 0 40px 90px rgba(20, 43, 34, 0.18);
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 3%;
  border-radius: inherit;
  background: radial-gradient(circle at 65% 30%, transparent, rgba(7, 29, 22, 0.32));
}

.core {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  display: grid;
  width: clamp(8rem, 14vw, 12rem);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  background: rgba(242, 240, 233, 0.14);
  color: white;
  font: 700 0.78rem/1 ui-monospace, monospace;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transform: translate(-50%, -50%);
  backdrop-filter: blur(14px);
}

.orbit { position: absolute; z-index: 2; inset: 13%; border: 1px solid rgba(255, 255, 255, 0.26); border-radius: 50%; }
.orbit-two { inset: 27%; }

.signal-card {
  position: absolute;
  z-index: 4;
  min-width: 9rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 0.8rem;
  background: rgba(242, 240, 233, 0.86);
  box-shadow: 0 15px 35px rgba(13, 40, 30, 0.18);
  color: var(--green-dark);
  font-family: ui-monospace, monospace;
  font-size: 0.78rem;
  backdrop-filter: blur(12px);
}

.card-index { margin-right: 0.7rem; color: #7a857f; }
.card-one { top: 16%; left: 2%; }
.card-two { top: 42%; right: -2%; }
.card-three { bottom: 13%; left: 11%; }

.principles {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(3rem, 8vw, 9rem);
  padding: clamp(5rem, 9vw, 9rem) clamp(1.25rem, 4vw, 4.5rem);
  border-top: 1px solid var(--line);
}

.principles h2 { margin: 0; font: 400 clamp(2.8rem, 5vw, 5.5rem)/0.98 Georgia, serif; letter-spacing: -0.055em; }
.principle-list article { display: grid; grid-template-columns: 2.5rem 1fr; gap: 1rem; padding: 1.5rem 0; border-top: 1px solid var(--line); }
.principle-list article:last-child { border-bottom: 1px solid var(--line); }
.principle-list article > span { color: var(--green); font: 700 0.72rem/1.5 ui-monospace, monospace; }
.principle-list h3 { margin: 0 0 0.5rem; font-size: 1.15rem; }
.principle-list p { max-width: 540px; margin: 0; color: var(--muted); }

footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 0.78rem; }

@media (max-width: 850px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-visual { min-height: 560px; order: -1; }
  .principles { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .site-header { padding-block: 1.1rem; }
  .header-link { font-size: 0.75rem; }
  .hero { padding-top: 2rem; }
  .hero-visual { min-height: 430px; }
  .input-row { flex-direction: column; }
  .input-row button { width: 100%; }
  .signal-card { min-width: auto; font-size: 0.67rem; }
  .card-two { right: 0; }
  footer { align-items: flex-start; flex-direction: column; gap: 0.35rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}