/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  color: #1a2e14;
  background: #faf9f5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== CUSTOM PROPERTIES ===== */
:root {
  --forest-50:  #f2f7f0;
  --forest-100: #e3eddc;
  --forest-200: #c6dab8;
  --forest-300: #9dbe87;
  --forest-400: #72a357;
  --forest-500: #52823c;
  --forest-600: #3e652e;
  --forest-700: #325125;
  --forest-800: #29411f;
  --forest-900: #213519;
  --forest-950: #111c0c;
  --cream-50:  #faf9f5;
  --cream-100: #f5f3ec;
  --cream-200: #ebe8db;
}

/* ===== BUTTONS ===== */
.btn-primary {
  background: linear-gradient(135deg, #29411f 0%, #325125 50%, #3e652e 100%);
  color: #faf9f5;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -8px rgba(17, 28, 12, 0.4);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: #29411f;
  border: 2px solid #c6dab8;
  padding: 0.6875rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}
.btn-secondary:hover {
  border-color: #52823c;
  background: #f2f7f0;
  transform: translateY(-1px);
}

/* ===== FORM INPUTS ===== */
.input-field {
  border: 1.5px solid #e3eddc;
  border-radius: 0.625rem;
  padding: 0.6875rem 0.875rem;
  font-size: 0.9375rem;
  font-family: 'Inter', system-ui, sans-serif;
  color: #1a2e14;
  background: #faf9f5;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  width: 100%;
  outline: none;
}
.input-field::placeholder { color: #9dbe87; }
.input-field:focus {
  border-color: #52823c;
  box-shadow: 0 0 0 3px rgba(82, 130, 60, 0.12);
}
.input-field.error {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}
.input-field-error-msg {
  color: #dc2626;
  font-size: 0.8125rem;
  margin-top: 0.375rem;
  display: none;
}

/* ===== NAV LINKS ===== */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #52823c;
  transition: width 0.25s ease;
}
.nav-link:hover::after { width: 100%; }

.mobile-nav-link { text-decoration: none; }

/* ===== SERVICE CARDS ===== */
.service-card { cursor: default; }

/* ===== FAQ ===== */
.faq-item { transition: border-color 0.2s ease, box-shadow 0.2s ease; }
.faq-item:hover { border-color: #c6dab8; box-shadow: 0 4px 16px -8px rgba(17, 28, 12, 0.08); }

.faq-btn { font-family: inherit; }

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-content.open { max-height: 300px; }

.faq-icon { flex-shrink: 0; }

/* ===== SCROLL REVEAL (progressive enhancement) ===== */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }
  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  .reveal-delay-1 { transition-delay: 0.1s; }
  .reveal-delay-2 { transition-delay: 0.2s; }
  .reveal-delay-3 { transition-delay: 0.3s; }
  .reveal-delay-4 { transition-delay: 0.4s; }
}

/* ===== HEADER SCROLLED STATE ===== */
#site-header.scrolled {
  box-shadow: 0 1px 12px rgba(17, 28, 12, 0.08);
}

/* ===== MOBILE MENU ===== */
#mobile-menu {
  animation: slideDown 0.2s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== FORM VALIDATION ===== */
.form-error { color: #dc2626; font-size: 0.8125rem; margin-top: 0.25rem; display: none; }
.form-error.visible { display: block; }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .font-display { font-size: clamp(2rem, 8vw, 3rem); }
}