/* ===== Design tokens ===== */
:root {
  --color-forest: #1F3B2D;
  --color-forest-dim: #2A4A3A;
  --color-sage: #5BC97B;
  --color-leaf: #8FD9A8;
  --color-cream: #F4EFE6;
  --color-cream-light: #FAF6EE;
  --color-white: #FFFFFF;
  --color-ink: #1A1A1A;
  --color-stone: #5C6B5F;
  --color-stone-light: #8A968D;
  --color-border: #E8E2D6;
  --color-border-soft: #F0EBE0;

  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --shadow-sm: 0 1px 2px rgba(31, 59, 45, 0.04);
  --shadow-md: 0 4px 16px rgba(31, 59, 45, 0.06);
  --shadow-lg: 0 12px 40px rgba(31, 59, 45, 0.08);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;

  --container: 1200px;
  --container-narrow: 880px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-family: var(--font-sans);
  color: var(--color-forest);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 700;
}
h1 { font-size: clamp(2.5rem, 5vw, 4rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.875rem, 3.5vw, 2.75rem); }
h3 { font-size: 1.375rem; font-weight: 600; }
h4 { font-size: 1.0625rem; font-weight: 600; }
p { color: var(--color-ink); }
.lead { font-size: 1.25rem; color: var(--color-stone); line-height: 1.55; }
.eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-sage);
  margin-bottom: 1rem;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.container--narrow { max-width: var(--container-narrow); }
section { padding: 5rem 0; }
@media (min-width: 768px) { section { padding: 7rem 0; } }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 239, 230, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-border-soft);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 72px;
}
.nav__brand { display: flex; align-items: center; gap: 0.625rem; }
.nav__logo { height: 36px; width: auto; }
.nav__brandname { font-weight: 700; font-size: 1.125rem; color: var(--color-forest); letter-spacing: -0.01em; }
.nav__menu { display: none; align-items: center; gap: 2rem; list-style: none; }
.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-stone);
  transition: color 0.15s ease;
}
.nav__link:hover, .nav__link[aria-current="page"] { color: var(--color-forest); }
.nav__cta { display: none; }
.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-forest);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 880px) {
  .nav__menu { display: flex; }
  .nav__cta { display: inline-flex; }
  .nav__toggle { display: none; }
}

/* Mobile menu */
.nav__mobile {
  display: none;
  padding: 1rem 1.5rem 2rem;
  border-bottom: 1px solid var(--color-border-soft);
  background: var(--color-cream);
}
.nav__mobile[data-open="true"] { display: block; }
.nav__mobile ul { list-style: none; display: flex; flex-direction: column; gap: 0.25rem; }
.nav__mobile a {
  display: block;
  padding: 0.875rem 0;
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-forest);
  border-bottom: 1px solid var(--color-border-soft);
}
.nav__mobile .btn { margin-top: 1rem; width: 100%; justify-content: center; }
@media (min-width: 880px) { .nav__mobile { display: none !important; } }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--color-forest); color: var(--color-white); }
.btn--primary:hover { background: var(--color-forest-dim); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--secondary { background: transparent; color: var(--color-forest); border: 1.5px solid var(--color-forest); }
.btn--secondary:hover { background: var(--color-forest); color: var(--color-white); }
.btn--ghost { color: var(--color-forest); padding: 0.5rem 0; }
.btn--ghost:hover { color: var(--color-sage); }
.btn--lg { padding: 1.0625rem 1.75rem; font-size: 1rem; }
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ===== Hero ===== */
.hero {
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
@media (min-width: 768px) { .hero { padding: 7rem 0 6rem; } }
.hero__inner { max-width: 780px; }
.hero h1 { color: var(--color-forest); margin-bottom: 1.25rem; }
.hero p.lead { margin-bottom: 2.25rem; max-width: 640px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.875rem; }
.hero__pulse {
  position: absolute;
  top: -120px;
  right: -180px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 201, 123, 0.16) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* ===== Cards ===== */
.cards {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .cards { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-cream);
  display: grid;
  place-items: center;
  margin-bottom: 1.25rem;
  color: var(--color-forest);
}
.card h3 { margin-bottom: 0.5rem; color: var(--color-forest); }
.card p { color: var(--color-stone); font-size: 0.9375rem; line-height: 1.65; }

/* ===== Section header ===== */
.section-head { max-width: 720px; margin-bottom: 3.5rem; }
.section-head h2 { margin-bottom: 1rem; }
.section-head p { color: var(--color-stone); font-size: 1.125rem; max-width: 580px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center p { margin-left: auto; margin-right: auto; }

/* ===== Steps ===== */
.steps {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 768px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 2rem; } }
.step { position: relative; padding-top: 0.5rem; }
.step__num {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-forest);
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
}
.step h3 { margin-bottom: 0.5rem; }
.step p { color: var(--color-stone); font-size: 0.9375rem; line-height: 1.65; }

/* ===== Stats ===== */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (min-width: 768px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat {
  padding: 1.75rem 1.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
}
.stat__value { font-size: 2.25rem; font-weight: 700; color: var(--color-forest); letter-spacing: -0.02em; line-height: 1; margin-bottom: 0.5rem; }
.stat__label { font-size: 0.8125rem; color: var(--color-stone); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 500; }

/* ===== Quote / Pull quote ===== */
.quote {
  padding: 2.5rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-sage);
  margin: 2.5rem 0;
}
.quote__text {
  font-size: 1.375rem;
  line-height: 1.5;
  color: var(--color-forest);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.quote__attr { margin-top: 1.25rem; font-size: 0.9375rem; color: var(--color-stone); }
.quote__attr strong { color: var(--color-forest); font-weight: 600; }

/* ===== Tinted band ===== */
.band {
  background: var(--color-white);
  border-top: 1px solid var(--color-border-soft);
  border-bottom: 1px solid var(--color-border-soft);
}
.band--forest { background: var(--color-forest); color: var(--color-cream); }
.band--forest h2 { color: var(--color-cream); }
.band--forest p { color: rgba(244, 239, 230, 0.85); }
.band--forest .btn--primary { background: var(--color-sage); color: var(--color-forest); }
.band--forest .btn--primary:hover { background: var(--color-leaf); }

/* ===== Final CTA ===== */
.final-cta {
  text-align: center;
  padding: 5rem 0;
}
.final-cta h2 { margin-bottom: 1rem; }
.final-cta p { font-size: 1.125rem; margin-bottom: 2rem; max-width: 540px; margin-left: auto; margin-right: auto; }

/* ===== Two-column layout ===== */
.split {
  display: grid;
  gap: 3rem;
  align-items: start;
  grid-template-columns: 1fr;
}
@media (min-width: 880px) { .split { grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; } }
.split--reverse { direction: rtl; }
.split--reverse > * { direction: ltr; }
.split__visual {
  background: var(--color-cream-light);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  min-height: 280px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-border-soft);
}

/* ===== Pilot story ===== */
.story p { margin-bottom: 1.25rem; color: var(--color-ink); font-size: 1.0625rem; line-height: 1.7; }
.story p:last-child { margin-bottom: 0; }

/* ===== Contact / Person ===== */
.contact-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .contact-grid { grid-template-columns: 1fr 1fr; } }
.contact-card {
  padding: 2rem;
  background: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
}
.contact-card h3 { margin-bottom: 0.5rem; }
.contact-card a { color: var(--color-sage); font-weight: 600; }
.contact-card a:hover { color: var(--color-forest); text-decoration: underline; }
.contact-card p { color: var(--color-stone); margin-bottom: 1rem; font-size: 0.9375rem; }

/* ===== Person card ===== */
.person {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 1.5rem;
  align-items: center;
  padding: 2rem;
  background: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  max-width: 540px;
}
.person__avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-sage), var(--color-forest));
  display: grid;
  place-items: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}
.person h4 { margin-bottom: 0.25rem; }
.person__role { color: var(--color-stone); font-size: 0.9375rem; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-forest);
  color: var(--color-cream);
  padding: 4rem 0 2rem;
}
.footer__inner {
  display: grid;
  gap: 3rem;
  grid-template-columns: 1fr;
  margin-bottom: 3rem;
}
@media (min-width: 768px) { .footer__inner { grid-template-columns: 1.5fr 1fr 1fr; } }
.footer__brand p { color: rgba(244, 239, 230, 0.7); margin-top: 1rem; max-width: 320px; font-size: 0.9375rem; line-height: 1.65; }
.footer__brand .nav__logo { filter: brightness(0) invert(1); opacity: 0.95; }
.footer__col h4 { color: var(--color-cream); margin-bottom: 1rem; font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 600; }
.footer__col ul { list-style: none; display: flex; flex-direction: column; gap: 0.625rem; }
.footer__col a { color: rgba(244, 239, 230, 0.7); font-size: 0.9375rem; transition: color 0.15s ease; }
.footer__col a:hover { color: var(--color-leaf); }
.footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(244, 239, 230, 0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: rgba(244, 239, 230, 0.5);
}

/* ===== Utilities ===== */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-6 { margin-top: 3rem; }
.mt-8 { margin-top: 4rem; }
.mb-2 { margin-bottom: 1rem; }

/* ===== Reveal-on-scroll ===== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}