:root {
  --bg: #F7F8F8;
  --surface: #FFFFFF;
  --surface-alt: #EEF1F0;
  --ink: #12181B;
  --secondary: #5A6467;
  --hairline: #DDE3E1;
  --accent: #1F7A66;
  --accent-dark: #155948;

  --maxw: 1080px;
  --font-display: "Bricolage Grotesque", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--surface);
  color: var(--ink);
  padding: 10px 16px;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  z-index: 200;
}
.skip-link:focus {
  left: 24px;
}

/* Eyebrow / mono utility */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 18px;
}

/* Buttons & links */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
  padding: 13px 22px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); color: #fff; }

.text-link {
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease;
}
.text-link:hover { border-bottom-color: var(--accent-dark); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 248, 248, 0.8);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}
.brand:hover { color: var(--ink); }
.brand-mark { flex: none; }
.brand-name { white-space: nowrap; }

.site-nav { display: flex; align-items: center; }
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a:not(.btn) {
  color: var(--ink);
  font-weight: 500;
  font-size: 0.9375rem;
}
.nav-menu a:not(.btn):hover { color: var(--accent-dark); }
.nav-cta { padding: 9px 16px; font-size: 0.9375rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--ink);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* Hero */
.hero {
  padding-block: clamp(56px, 9vw, 104px) clamp(56px, 9vw, 104px);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(32px, 5vw, 64px);
}
.hero-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 24px;
}
.lede {
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  line-height: 1.6;
  color: var(--secondary);
  max-width: 40ch;
  margin: 0 0 32px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

/* Hero graphic */
.hero-graphic {
  margin: 0;
  padding: clamp(20px, 3vw, 32px);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 14px;
}
.ae-curve { width: 100%; height: auto; }
.ae-axis { stroke: var(--hairline); stroke-width: 1.5; }
.ae-path { fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.ae-uncat { stroke: #C3CCCA; }
.ae-cat { stroke: var(--accent); }
.ae-caption {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--secondary);
  margin-top: 14px;
}

@media (prefers-reduced-motion: no-preference) {
  .ae-path {
    stroke-dasharray: 720;
    stroke-dashoffset: 720;
    animation: draw 1s ease-out forwards;
  }
  .ae-cat { animation-delay: .18s; }
  @keyframes draw {
    to { stroke-dashoffset: 0; }
  }
}

/* Sections */
.section {
  padding-block: clamp(64px, 12vw, 120px);
  border-top: 1px solid var(--hairline);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.4vw, 1.75rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 28px;
  max-width: 24ch;
}
.prose {
  max-width: 62ch;
  color: var(--secondary);
}
.prose p { margin: 0 0 18px; }
.prose p:last-child { margin-bottom: 0; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}
.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 26px 24px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.card:hover {
  border-color: var(--accent);
  box-shadow: 0 1px 0 rgba(31,122,102,.06);
}
.card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1875rem;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
.card-body {
  margin: 0;
  color: var(--secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* Contact */
.contact-line { margin-bottom: 28px; }
.email-link {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  letter-spacing: -0.02em;
  border-bottom: 2px solid transparent;
  transition: border-color .15s ease;
}
.email-link:hover { border-bottom-color: var(--accent-dark); }
.office {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--secondary);
  white-space: pre-line;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--hairline);
}

/* Footer */
.site-footer {
  background: var(--surface-alt);
  border-top: 1px solid var(--hairline);
  padding-block: 48px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.footer-legal {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--secondary);
  margin: 0 0 6px;
}
.footer-line {
  font-size: 0.9375rem;
  color: var(--secondary);
  margin: 0 0 6px;
}
.footer-line a { color: var(--accent); }
.footer-line a:hover { color: var(--accent-dark); }

/* 404 */
.notfound {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding-block: 80px;
}
.notfound .eyebrow { margin-bottom: 16px; }
.notfound h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.notfound p { color: var(--secondary); margin: 0 0 28px; }

/* Responsive */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-graphic { order: 2; }
  .cards { grid-template-columns: 1fr; }

  /* Toggle only appears once JS is confirmed available */
  .js .nav-toggle { display: flex; }

  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-menu li { padding: 6px 0; }
  .nav-menu li + li { border-top: 1px solid var(--hairline); }
  .nav-cta { align-self: flex-start; margin-top: 10px; }

  /* With JS: menu becomes a collapsible panel, hidden until opened */
  .js .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--hairline);
    padding: 8px 24px 20px;
    box-shadow: 0 12px 24px rgba(18,24,27,.06);
  }
  .js .site-header:not(.nav-open) .nav-menu { display: none; }
}