:root {
  --bg: #fdfcfc;
  --surface: #ffffff;
  --surface-2: #f5f3f1;
  --surface-3: #edebe8;
  --ink: #000000;
  --ink-2: rgb(68, 64, 59);
  --ink-3: rgb(119, 113, 105);
  --rule: rgba(0, 0, 0, 0.075);
  --rule-strong: rgba(0, 0, 0, 0.15);
  --accent: #000000;
  --accent-soft: rgba(0, 0, 0, 0.05);
  --green: oklch(0.55 0.13 145);
  --font-display: "Crimson Pro", "Source Serif 4", Georgia, serif;
  --font-body: "Hanken Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
}

html[data-theme="dark"] {
  --bg: #0a0908;
  --surface: #14110f;
  --surface-2: #1a1614;
  --surface-3: #211c19;
  --ink: #faf8f6;
  --ink-2: rgb(189, 184, 178);
  --ink-3: rgb(135, 130, 124);
  --rule: rgba(255, 255, 255, 0.1);
  --rule-strong: rgba(255, 255, 255, 0.18);
  --accent: #faf8f6;
  --accent-soft: rgba(255, 255, 255, 0.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-y: scroll; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
::selection { background: var(--ink); color: var(--bg); }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 20px 48px;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in oklab, var(--bg) 86%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(1.08);
  backdrop-filter: blur(18px) saturate(1.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-self: start;
  text-decoration: none;
}

.brand-mark {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
  justify-self: center;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--ink-2);
  font-size: 14px;
  text-decoration: none;
}

.nav-links a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--ink);
  font-weight: 500;
}

.nav-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
}

.theme-toggle,
.button {
  border-radius: 999px;
  font: inherit;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 22px;
  border: 1px solid var(--rule-strong);
  background: transparent;
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.button.primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: 88px 48px 80px;
  border-bottom: 1px solid var(--rule);
}

.hero.home {
  min-height: 92vh;
  display: grid;
  align-items: center;
  text-align: center;
  background: #d8ecf2;
}

.hero.home::before,
.hero.home::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero.home::before {
  z-index: -3;
  background-image: image-set(
    url("/assets/hero-nature-bg-1600.avif") type("image/avif"),
    url("/assets/hero-nature-bg-1600.webp") type("image/webp"),
    url("/assets/hero-nature-bg.jpg") type("image/jpeg")
  );
  background-size: cover;
  background-position: center 58%;
  filter: blur(11px) saturate(1.14) contrast(1.03);
  transform: scale(1.055);
}

.hero.home::after {
  z-index: -1;
  background:
    radial-gradient(circle at 50% 20%, rgba(253,252,252,.50) 0 16%, rgba(253,252,252,.22) 40%, rgba(253,252,252,.03) 70%),
    linear-gradient(180deg, rgba(204,233,242,.26) 0%, rgba(253,252,252,.06) 38%, rgba(10,49,42,.32) 100%);
}

.hero-inner,
.section-inner,
.footer-inner {
  width: min(1280px, 100%);
  margin: 0 auto;
}

.hero.home .hero-inner {
  max-width: 1180px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--accent);
}

.hero.home .eyebrow {
  padding: 6px 12px;
  border: 1px solid rgba(0,0,0,.16);
  background: rgba(253,252,252,.50);
  color: rgba(34,34,31,.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0;
  text-wrap: balance;
}

h1 {
  max-width: 1120px;
  font-size: clamp(52px, 8vw, 104px);
  line-height: .98;
}

.hero.home h1 {
  margin-left: auto;
  margin-right: auto;
  color: #000;
}

h2 {
  max-width: 920px;
  font-size: clamp(38px, 5.1vw, 62px);
  line-height: 1.05;
}

h3 {
  font-size: 26px;
  line-height: 1.15;
}

.lead {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--ink-2);
  font-size: 19px;
  line-height: 1.55;
  text-wrap: pretty;
}

.hero.home .lead {
  margin-left: auto;
  margin-right: auto;
  color: rgba(25,29,28,.78);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero.home .hero-actions {
  justify-content: center;
}

.section {
  padding: 96px 48px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}

.section.alt {
  background:
    radial-gradient(circle at 52% 0%, color-mix(in oklab, var(--surface-2) 62%, transparent), transparent 46%),
    var(--surface-2);
}

.section-copy {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--ink-2);
  font-size: 18px;
  line-height: 1.6;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 48px;
  overflow: hidden;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--rule);
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  min-height: 190px;
  padding: 32px;
  background:
    linear-gradient(145deg, color-mix(in oklab, var(--bg) 94%, var(--surface-2)), var(--bg));
  color: var(--ink);
  text-decoration: none;
}

a.card:hover h3 {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.card-kicker {
  margin-bottom: 14px;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.card p,
.article-card p {
  margin: 12px 0 0;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.58;
}

.steps,
.faq-list,
.article-list {
  margin-top: 48px;
  border-top: 1px solid var(--rule);
}

.step,
.faq-item,
.article-card {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--rule);
}

.step-number,
.article-meta {
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.faq-item {
  grid-template-columns: 1fr;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
  padding: 0;
}

.faq-answer {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.6;
}

.faq-answer[hidden] {
  display: none;
}

.article-card {
  grid-template-columns: 170px 1fr 96px;
  align-items: start;
  color: var(--ink);
  text-decoration: none;
}

.article-card:hover h3 {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.table-wrap {
  margin-top: 48px;
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}

th,
td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.contact-shell {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 18px;
  padding: 32px;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--surface);
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 500;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--rule-strong);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  padding: 12px 13px;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.checkbox input {
  width: auto;
  margin-top: 4px;
}

.form-status {
  min-height: 24px;
  color: var(--ink-2);
  font-size: 14px;
}

.form-status[data-state="ok"] { color: var(--green); }
.form-status[data-state="error"] { color: oklch(0.54 0.16 28); }

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.footer {
  padding: 64px 48px 36px;
  background: var(--bg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--rule);
}

.footer p {
  max-width: 360px;
  color: var(--ink-2);
}

.footer-title {
  margin-bottom: 14px;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.footer a {
  color: var(--ink);
  text-decoration: none;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding-top: 24px;
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
}

@media (max-width: 960px) {
  .site-nav {
    grid-template-columns: 1fr auto;
    padding: 18px 24px;
  }

  .nav-links,
  .nav-actions .button {
    display: none;
  }

  .hero,
  .section,
  .footer {
    padding-left: 24px;
    padding-right: 24px;
  }

  .grid,
  .grid.two,
  .contact-shell,
  .field-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .article-card,
  .step {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 520px) {
  .hero,
  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  h1 { font-size: 42px; }
  h2 { font-size: 36px; }
  .lead,
  .section-copy { font-size: 16px; }

  .hero-actions,
  .button {
    width: 100%;
  }

  .card,
  .contact-form {
    padding: 24px;
  }
}