:root {
  --bg: #0F0F0F;
  --surface: #161616;
  --accent: #255B45;
  --text: #FFFFFF;
  --muted: #888888;
}

body {
  background-color: var(--bg);
  color: var(--text);
}


/* Fade-in on scroll */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Accent button */
.btn-accent {
  background-color: #255B45 !important;
  color: #ffffff !important;
  font-family: 'Lato', sans-serif;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: none !important;
  outline: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}
.btn-accent:hover {
  background-color: #1e4d3a !important;
  box-shadow: 0 0 22px rgba(37, 91, 69, 0.5);
  color: #ffffff !important;
}

/* Card surface */
.card {
  position: relative;
  background-color: rgba(37,91,69,0.08);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-left: 3px solid #255B45;
}
@keyframes gradientSweep {
  0%   { background-position: 0% 0%; }
  50%  { background-position: 100% 100%; }
  100% { background-position: 0% 0%; }
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    transparent 15%,
    rgba(82,183,136,0.18) 45%,
    rgba(37,91,69,0.13) 65%,
    transparent 85%
  );
  background-size: 250% 250%;
  opacity: 0;
  transition: opacity 0.8s ease;
  animation: gradientSweep 7s ease-in-out infinite paused;
  pointer-events: none;
}
.card:hover::before {
  opacity: 1;
  animation-play-state: running;
}

/* Nav link hover */
.nav-link {
  color: var(--muted);
  transition: color 0.2s ease;
  font-family: 'Lato', sans-serif;
}
.nav-link:hover {
  color: var(--text);
}
.nav-link.active {
  color: var(--text);
}

/* Accent label */
.label-accent {
  color: #255B45;
  font-family: 'Lato', sans-serif;
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}

/* Step number */
.step-number {
  color: #255B45;
  font-family: 'Merriweather', serif;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

/* Horizontal rule accent */
.rule-accent {
  border: none;
  border-top: 1px solid rgba(37, 91, 69, 0.25);
}

/* Form input */
.form-input {
  background-color: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-family: 'Lato', sans-serif;
  transition: border-color 0.2s ease;
  outline: none;
  width: 100%;
}
.form-input:focus {
  border-color: var(--accent);
}
.form-input::placeholder {
  color: var(--muted);
}