/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #ffffff;
  --color-surface: #f8f8f8;
  --color-text: #111111;
  --color-text-muted: #444444;
  --color-muted: #888888;
  --color-border: #E6E6E6;
  --color-accent: #5A7D5A;
  --color-accent-soft: rgba(90, 125, 90, 0.12);
  --container-max: 1180px;
  --header-height: 96px;
  --header-height-scrolled: 80px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 40px rgba(17, 17, 17, 0.08);
  --transition-base: 200ms ease;
  --space-xxl: 6rem;
  --space-xl: 5rem;
  --space-lg: 3.5rem;
  --space-md: 2rem;
  --space-sm: 1.25rem;
}

body.dark {
  --color-bg: #111111;
  --color-surface: #1a1a1a;
  --color-text: #f5f5f5;
  --color-text-muted: #d0d0d0;
  --color-muted: #9a9a9a;
  --color-border: rgba(255, 255, 255, 0.14);
  --shadow-soft: 0 24px 48px rgba(0, 0, 0, 0.4);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Inter", "Noto Sans", "Liberation Sans", Arial, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-base), color var(--transition-base);
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover,
a:focus-visible {
  color: var(--color-accent);
}

button {
  font: inherit;
  color: inherit;
}

img,
svg {
  max-width: 100%;
  display: block;
}

.slash-stroke {
  fill: none;
  stroke: currentColor;
  stroke-width: 8;
  stroke-linecap: round;
  opacity: 0.3;
}

.accent-line {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 8;
  stroke-linecap: round;
  transform-origin: center;
}

@keyframes rotate-accent {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.accent-line.animate {
  animation: rotate-accent 1.2s ease-in-out;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(var(--container-max), 100%);
  margin: 0 auto;
  padding: 0 1.75rem;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xxl);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
  backdrop-filter: blur(6px);
}

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  transition: height var(--transition-base);
}

.site-header.is-scrolled {
  box-shadow: 0 12px 24px rgba(17, 17, 17, 0.08);
}

.site-header.is-scrolled .header-inner {
  height: var(--header-height-scrolled);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.brand-mark {
  width: 30px;
  height: 60px;
  color: var(--color-text);
}

.brand-wordmark {
  font-size: 1.1rem;
  letter-spacing: 0.3em;
}

.site-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav a {
  position: relative;
  padding: 0.4rem 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.4rem;
  width: 100%;
  height: 2px;
  background: transparent;
  transition: background var(--transition-base);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after {
  background: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.32rem;
  width: 46px;
  height: 46px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.nav-toggle:hover {
  background: var(--color-accent-soft);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.nav-bar {
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

#theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 46px;
  height: 46px;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

#theme-toggle:hover {
  background: var(--color-accent-soft);
}

#theme-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17, 17, 17, 0.55);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  z-index: 90;
}

body.nav-open .nav-backdrop {
  opacity: 1;
  pointer-events: auto;
}

/* Hero */
.hero {
  padding-top: var(--space-xl);
}

.hero-inner {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.hero-copy {
  max-width: 640px;
}

.hero-figure {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.hero-figure svg {
  width: clamp(120px, 18vw, 180px);
  height: auto;
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-subhead {
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.hero-support {
  color: var(--color-text-muted);
  max-width: 520px;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  border: 1px solid transparent;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.btn-solid {
  background: var(--color-text);
  color: var(--color-bg);
}

.btn-solid:hover {
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-link {
  padding: 0;
  border: none;
  background: none;
  color: var(--color-accent);
}

.link-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--color-accent);
  transition: color var(--transition-base), transform var(--transition-base);
}

.link-inline::after {
  content: "→";
  transition: transform var(--transition-base);
  font-size: 0.85rem;
}

.link-inline:hover::after,
.link-inline:focus-visible::after {
  transform: translateX(4px);
}

.link-inline:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 0.75rem;
}

.section-lead {
  color: var(--color-text-muted);
  max-width: 640px;
  margin-top: 1rem;
}

.section {
  padding-block: var(--space-xl);
}

.section-tight {
  padding-block: var(--space-lg);
}

.section-header {
  margin-bottom: var(--space-md);
}

.grid {
  display: grid;
  gap: var(--space-md);
}

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

.grid-columns-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-columns-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.grid-responsive {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: transparent;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.card-icon svg {
  width: 22px;
  height: 22px;
}

.card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.card:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.card-title {
  font-size: 1.2rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title span {
  font-size: 1.5rem;
}

.card-body {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.card-meta {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-top: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-top-accent {
  border-top: 4px solid var(--color-accent);
  padding-top: calc(var(--space-md) - 0.75rem);
}

.domains-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.domain-chip {
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: border-color var(--transition-base), transform var(--transition-base);
}

.domain-chip:hover,
.domain-chip:focus-visible {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.domain-chip span {
  font-size: 1.35rem;
}

.insight-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.insight-date {
  font-size: 0.85rem;
  color: var(--color-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Split layouts */
.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-xl);
  align-items: start;
}

.abstract-block {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(90, 125, 90, 0.08), transparent);
}

.values-list {
  list-style: none;
  display: grid;
  gap: 0.85rem;
  margin-top: var(--space-md);
}

.values-list li {
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.98rem;
  letter-spacing: 0.04em;
}

.values-list li::before {
  content: "/";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* Labs & Contact */
.section-subtitle {
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.placeholder-note {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: start;
}

.contact-block {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: grid;
  gap: 1rem;
}

.contact-meta {
  display: grid;
  gap: 0.5rem;
  color: var(--color-text-muted);
}

.form-shell {
  display: grid;
  gap: 1rem;
}

.form-shell label {
  display: grid;
  gap: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}

.form-shell input,
.form-shell textarea {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
}

.form-shell textarea {
  min-height: 160px;
  resize: vertical;
}

.form-shell button {
  justify-self: start;
  cursor: not-allowed;
  background: var(--color-accent-soft);
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 0.75rem 1.75rem;
}

.form-shell button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  padding: var(--space-lg) 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-xl);
  align-items: start;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.footer-brand svg {
  width: 26px;
  height: 52px;
  color: var(--color-text);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.footer-meta {
  display: grid;
  gap: 0.75rem;
  text-align: right;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.footer-social {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.social-pill {
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 220ms ease, transform 220ms ease;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-animate] {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Responsive */
@media (max-width: 1080px) {
  .header-inner {
    gap: 1rem;
  }

  .site-nav ul {
    gap: 1.5rem;
  }
}

@media (max-width: 900px) {
  main {
    padding-bottom: var(--space-xl);
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .split,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    text-align: left;
  }

  .footer-meta {
    text-align: left;
  }
}

@media (max-width: 860px) {
  .site-nav {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    padding: var(--space-xl) 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-100%);
    transition: transform var(--transition-base);
    z-index: 95;
  }

  body.nav-open .site-nav {
    transform: translateY(0);
  }

  .site-nav ul {
    flex-direction: column;
    gap: 1.5rem;
    font-size: 1rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav a::after {
    bottom: -0.2rem;
  }

  .brand-wordmark {
    display: none;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 1.25rem;
  }

  .hero {
    padding-top: var(--space-lg);
  }

  .cta-group {
    width: 100%;
  }

  .btn {
    flex: 1 1 100%;
    justify-content: center;
  }

  .domains-row {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }

  .footer-links {
    grid-template-columns: 1fr;
  }
}