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

:root {
  --green-dark:   #1a3d2b;
  --green-mid:    #2d6a4f;
  --green-bright: #52b788;
  --green-glow:   #74c69d;
  --green-pale:   #b7e4c7;
  --green-mist:   #d8f3dc;

  --bg:           #f5f5f3;
  --text-primary: #1a2e22;
  --text-muted:   #5a7a66;
  --text-subtle:  #8aab96;

  --font: 'Inter', system-ui, sans-serif;
  --font-display: 'DM Sans', system-ui, sans-serif;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* ─── Header ─── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  padding: 28px 36px;
}

.logo-link {
  display: block;
  line-height: 0;
}

.logo {
  height: 40px;
  width: auto;
}

/* ─── Main layout ─── */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 100vh;
  /* push content into the lower clean-background zone */
  padding-top: clamp(300px, 52vh, 440px);
  padding-bottom: 80px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ─── Orb ─── */
.orb {
  position: absolute;
  top: 0;
  left: 50%;
  /* anchor the orb's centre just above the viewport top so glow radiates downward */
  transform: translateX(-50%) translateY(-30%);
  width: min(740px, 100vw);
  height: min(740px, 100vw);
  border-radius: 50%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(116, 198, 157, 0.60) 0%,
    rgba(82,  183, 136, 0.38) 28%,
    rgba(45,  106,  79, 0.18) 55%,
    rgba(184, 228, 199, 0.04) 78%,
    transparent 100%
  );
  filter: blur(56px);
  pointer-events: none;
}

/* soft outer halo that trails down the page */
.orb::after {
  content: '';
  position: absolute;
  inset: -20%;
  border-radius: 50%;
  background: radial-gradient(
    circle at 50% 60%,
    rgba(82, 183, 136, 0.12) 0%,
    transparent 70%
  );
  filter: blur(70px);
}

/* ─── Content stack ─── */
.content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0;
}

/* ─── Tree icon ─── */
.tree-icon {
  width: 156px;
  height: auto;
  display: block;
  margin-bottom: 14px;
}

/* ─── Heading ─── */
.heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.75rem);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  line-height: 1;
  color: var(--green-dark);
  margin-bottom: 24px;
}

/* ─── Subtitle ─── */
.subtitle {
  font-size: clamp(0.9rem, 2vw, 1.05rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--green-dark);
  opacity: 0.7;
}

/* ─── Divider ─── */
.divider {
  width: 1px;
  height: 52px;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--green-bright) 40%,
    var(--green-bright) 60%,
    transparent
  );
  margin: 36px auto;
  opacity: 0.5;
}

/* ─── Contact block ─── */
.contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.contact-label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.contact-link {
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 400;
  color: var(--green-mid);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.contact-link:hover,
.contact-link:focus-visible {
  color: var(--green-bright);
  opacity: 0.85;
  outline: none;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ─── Responsive ─── */
@media (max-width: 480px) {
  .site-header {
    padding: 20px 20px;
  }

  .logo {
    height: 32px;
  }

  .main {
    padding-top: clamp(240px, 48vw, 320px);
    padding-bottom: 56px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .orb {
    filter: blur(44px);
  }

  .heading {
    font-size: clamp(1.4rem, 7vw, 2rem);
    margin-bottom: 18px;
  }

  .divider {
    height: 40px;
    margin: 28px auto;
  }
}