/* ============ TOKENS ============ */
:root {
  --bg: #FAFAF7;
  --bg-tint: #F1F2EC;
  --ink: #171A1E;
  --muted: #5A6068;
  --line: #E3E1D8;
  --accent: #175E4C;
  --accent-dark: #114A3C;
  --card-bg: #FFFFFF;
  --radius: 14px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ============ RESET ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ============ LAYOUT ============ */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }
.section { padding: 112px 0; }
.section-tinted { background: var(--bg-tint); }

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.12; letter-spacing: -0.01em; }
h2 { font-size: clamp(28px, 4vw, 42px); max-width: 720px; }
h2 em { font-style: italic; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { color: var(--muted); }
a { color: inherit; text-decoration: none; }

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand { font-family: var(--font-display); font-size: 22px; font-weight: 600; color: var(--ink); }
.brand span { color: var(--accent); font-weight: 400; font-style: italic; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--ink); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-body); font-size: 15px; font-weight: 600;
  padding: 14px 26px; border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer; transition: all 0.2s ease;
}
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { width: 100%; margin-top: 22px; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); }
.btn-ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: var(--bg); }

/* ============ HERO ============ */
.hero { padding: 132px 0 96px; }
.eyebrow {
  font-size: 13px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 22px;
}
.hero h1 { font-size: clamp(38px, 6vw, 66px); max-width: 900px; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-sub {
  font-family: var(--font-display); font-style: italic;
  font-size: clamp(20px, 2.6vw, 26px); color: var(--ink);
  margin: 26px 0 18px;
}
.hero-body { max-width: 620px; font-size: 17px; }
.hero-ctas { display: flex; gap: 14px; margin-top: 40px; flex-wrap: wrap; }
.hero-rule { max-width: 1120px; margin: 84px auto 0; border-top: 1px solid var(--line); }

/* ============ SECTION LABELS ============ */
.section-label {
  font-size: 13px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 18px;
}
.section h2 { margin-bottom: 56px; }

/* ============ GRIDS & CARDS ============ */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--card-bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px;
}
.card-num {
  font-family: var(--font-display); font-size: 15px; font-style: italic;
  color: var(--accent); margin-bottom: 18px; letter-spacing: 0.06em;
}
.card p { font-size: 15px; }

/* ============ PRICING ============ */
.pricing { align-items: stretch; }
.price-card {
  background: var(--card-bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 38px 32px;
  position: relative; display: flex; flex-direction: column;
}
.price-card.featured { border: 1.5px solid var(--accent); box-shadow: 0 12px 40px rgba(23, 94, 76, 0.10); }
.tier-badge {
  position: absolute; top: -13px; left: 32px;
  background: var(--accent); color: #fff;
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 999px;
}
.tier { font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.price { font-family: var(--font-display); font-size: 44px; font-weight: 600; color: var(--ink); margin-top: 10px; }
.price span { font-size: 17px; font-weight: 400; color: var(--muted); }
.doors { font-size: 14px; color: var(--accent); font-weight: 600; margin-top: 2px; }
.price-card hr { border: none; border-top: 1px solid var(--line); margin: 22px 0; }
.tier-desc { font-size: 15px; flex-grow: 1; }
.pricing-note {
  margin-top: 40px; font-size: 15px; max-width: 680px;
  border-left: 3px solid var(--accent); padding-left: 18px;
}

/* ============ APPROACH ============ */
.approach-lede {
  font-family: var(--font-display); font-size: clamp(18px, 2.2vw, 22px);
  color: var(--ink); line-height: 1.5; max-width: 700px; margin: -28px 0 56px;
}
.step { padding: 0 8px; }
.step h3 { font-size: 19px; }
.step p { font-size: 15px; }
.step h3::before {
  content: ""; display: block; width: 34px; height: 2px;
  background: var(--accent); margin-bottom: 16px;
}

/* ============ FAQ ============ */
.faq-item {
  background: var(--card-bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 34px;
}
.faq-item h3 { font-size: 19px; }
.faq-item p { margin-top: 8px; }

/* ============ FORM ============ */
.audit-form {
  background: var(--card-bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 38px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.form-row { display: contents; }
.form-full { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 8px; }
label span { font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: 0.02em; }
input, select, textarea {
  font-family: var(--font-body); font-size: 15px;
  padding: 13px 16px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(23, 94, 76, 0.12);
}
textarea { resize: vertical; }
.audit-form .btn-block { grid-column: 1 / -1; }
.hidden { display: none; }

/* ============ FOOTER ============ */
.footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: var(--bg-tint); }
.footer-inner { display: flex; flex-direction: column; gap: 14px; }
.footer-note { font-size: 15px; }
.footer-links { display: flex; gap: 26px; margin-top: 6px; }
.footer-links a { font-size: 14px; font-weight: 500; color: var(--muted); }
.footer-links a:hover { color: var(--ink); }
.footer-legal { font-size: 13px; color: var(--muted); margin-top: 18px; opacity: 0.7; }

/* ============ REVEAL ANIMATION ============ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .section { padding: 80px 0; }
  .audit-form { grid-template-columns: 1fr; padding: 26px; }
  .form-row { display: block; }
  .form-row label + label { margin-top: 20px; }
  .hero { padding: 88px 0 64px; }
}