:root {
  --bg: #f3f8f6;
  --ink: #1c2a24;
  --muted: #486057;
  --accent: #0d8a6a;
  --accent-2: #f5b700;
  --card: #ffffff;
  --ring: rgba(13, 138, 106, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% 10%, #dff8ef 0%, var(--bg) 42%), linear-gradient(180deg, #f8fcfb 0%, #eef5f2 100%);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.03em;
}

.nav-link {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}

.hero {
  padding: 0 0 3rem 0;
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem 2rem;
}

.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

h1 {
  font-size: clamp(2rem, 4.6vw, 4.2rem);
  margin: 0;
  line-height: 1.05;
  max-width: 900px;
}

.subhead {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.1rem;
  margin-top: 1rem;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 0.8rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
}

.section-alt {
  margin-top: 0.8rem;
}

.section h2 {
  margin: 0 0 0.6rem 0;
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
}

.section-lead {
  color: var(--muted);
  margin-top: 0;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card,
.price-card {
  background: var(--card);
  border: 1px solid #d4e4dd;
  border-radius: 16px;
  padding: 1rem;
  box-shadow: 0 8px 28px rgba(15, 48, 37, 0.06);
}

.price-card.featured {
  border: 2px solid var(--accent);
  transform: translateY(-2px);
}

.price {
  font-size: 2rem;
  margin: 0.4rem 0;
  font-weight: 700;
}

.price span {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 500;
}

ul {
  padding-left: 1.2rem;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.35rem;
  color: #33473f;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 0.72rem 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 16px rgba(13, 138, 106, 0.22);
}

.btn-outline {
  background: #fff;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid #b7ccc3;
}

.fineprint {
  color: var(--muted);
  font-size: 0.9rem;
}

.modal {
  border: 1px solid #c3d7cf;
  border-radius: 16px;
  padding: 1rem;
  width: min(460px, 92vw);
}

.modal::backdrop {
  background: rgba(16, 28, 23, 0.35);
}

.modal label {
  display: block;
  margin-top: 0.8rem;
  margin-bottom: 0.3rem;
  font-weight: 500;
}

.modal input {
  width: 100%;
  border: 1px solid #bfd2ca;
  border-radius: 10px;
  padding: 0.65rem;
  font: inherit;
}

.modal input:focus {
  outline: 2px solid var(--ring);
  border-color: var(--accent);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-top: 1rem;
}

.result {
  max-width: 1100px;
  margin: 0 auto 2rem;
  padding: 0 1.5rem;
}

.result pre {
  background: #13221d;
  color: #d9f6ec;
  padding: 1rem;
  border-radius: 12px;
  overflow: auto;
}

@media (max-width: 640px) {
  .price-card.featured {
    transform: none;
  }
}