/* ---------- Design tokens ---------- */
:root {
  /* Palette taken from the logo. Text pairings meet WCAG AA contrast. */
  --ink: #1b2e17;          /* headings: deep forest, from the trunk shadows */
  --primary: #3f6e14;      /* buttons, links, icons: trunk green */
  --primary-dark: #2f5510; /* hover */
  --primary-soft: #ecf4dc; /* icon tiles, focus rings */
  --leaf: #8cc63f;         /* decorative accent only, never behind text */
  --footer: #14280f;
  --error: #b42318;        /* passes AA for all colour-vision types */
  --text: #22301f;
  --muted: #56655a;
  --border: #e1e8d8;
  --bg: #ffffff;
  --bg-alt: #f5f8ef;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(27, 46, 23, 0.08);
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

h1, h2, h3 {
  color: var(--ink);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.4rem); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; font-weight: 600; }

p { margin: 0 0 1em; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.75em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 3px;
  border-radius: 2px;
  background: var(--leaf);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.8em 1.5em;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }

.btn-outline { border-color: var(--border); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.btn-sm { padding: 0.5em 1.1em; font-size: 0.95rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.25rem;
}
.brand:hover { text-decoration: none; }

.brand-logo {
  display: block;
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-menu a:not(.btn) { color: var(--text); font-weight: 500; }
.nav-menu a:not(.btn):hover { color: var(--primary); text-decoration: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  background: none;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 110px 0 100px;
  background:
    radial-gradient(circle at 85% 20%, var(--primary-soft), transparent 45%),
    linear-gradient(180deg, #fff, var(--bg-alt));
}

.hero-inner { max-width: 780px; }

.lead {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 2em;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

.section-head { max-width: 640px; margin-bottom: 48px; }
.section-sub { color: var(--muted); font-size: 1.1rem; }

/* ---------- Service cards ---------- */
.grid.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--leaf));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: transparent;
}
.card:hover::before { transform: scaleX(1); }
.card p { color: var(--muted); margin: 0; }

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--primary-soft);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
}
.card-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--primary);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- About ---------- */
.about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-text p { color: var(--muted); }

.values {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}
.values li {
  padding-left: 28px;
  position: relative;
  color: var(--muted);
}
.values li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 14px;
  height: 14px;
  border-radius: 0 70% 0 70%; /* leaf shape, echoing the logo */
  background: var(--leaf);
}
.values strong { color: var(--ink); }

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.stat {
  background: #fff;
  border: 1px solid var(--border);
  border-top: 3px solid var(--leaf);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-num { font-size: 0.9rem; font-weight: 700; color: var(--primary); letter-spacing: 0.08em; }
.stat-title { font-size: 1.2rem; font-weight: 700; color: var(--ink); }
.stat-label { color: var(--muted); font-size: 0.95rem; }

/* ---------- Contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.contact-info > p { color: var(--muted); }

.contact-list { margin: 32px 0 0; display: grid; gap: 20px; }
.contact-list dt {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.contact-list dd { margin: 4px 0 0; color: var(--ink); font-weight: 500; overflow-wrap: anywhere; }

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--ink);
  margin-bottom: 6px;
}
.optional { font-weight: 400; color: var(--muted); }

.field input,
.field textarea {
  width: 100%;
  padding: 0.75em 0.9em;
  font: inherit;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.field.invalid input,
.field.invalid textarea { border-color: var(--error); box-shadow: inset 0 0 0 1px var(--error); }
/* Errors are spelled out in text, so they never rely on colour alone */
.field-error { margin: 6px 0 0; font-size: 0.9rem; font-weight: 500; color: var(--error); }
.field-error::before { content: "\26A0\FE0E  "; }

.form-status { margin: 14px 0 0; font-size: 0.95rem; min-height: 1.4em; }
.form-status.error { color: var(--error); }
.form-status.success { color: var(--primary); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--footer);
  color: rgba(255, 255, 255, 0.75);
  padding: 32px 0;
  font-size: 0.95rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.footer-inner p { margin: 0; }
.footer-inner nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.footer-inner nav a { display: inline-block; padding: 10px 4px; }
.footer-inner a { color: rgba(255, 255, 255, 0.85); }
.footer-inner a:hover { color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .about,
  .contact { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 20px 20px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-menu .btn { margin-top: 16px; text-align: center; }

  .hero { padding: 72px 0 64px; }
  .section { padding: 64px 0; }
  .contact-form { padding: 24px; }
}

@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; gap: 14px; }
  .hero-actions .btn { flex: 1 1 100%; text-align: center; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}