:root {
  --ink: #1c1915;
  --muted: #5c564c;
  --line: #e4ddd2;
  --paper: #f6f1e8;
  --card: #fffdf8;
  --card-light: #fbf7f0;
  --card-medium: #f0e9df;
  --card-dark: #e8d9c8;
  --accent: #9a3b24;
  --accent-deep: #6e2918;
  --ok: #2f5d45;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Outfit, "Segoe UI", sans-serif;
  font-weight: 380;
  line-height: 1.55;
  font-size: 17px;
}
a { color: inherit; }
.wrap { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }
nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 0 8px; font-size: 14px; letter-spacing: 0.04em;
}
nav a { text-decoration: none; margin-left: 18px; color: var(--muted); }
nav a:hover { color: var(--ink); }
.brand { font-family: Fraunces, Georgia, serif; font-size: 18px; letter-spacing: 0; color: var(--ink); margin: 0; }
.hero { padding: 64px 0 36px; }
.kicker {
  text-transform: uppercase; letter-spacing: 0.16em; font-size: 12px;
  color: var(--accent); font-weight: 560; margin: 0 0 16px;
}
h1 {
  font-family: Fraunces, Georgia, serif; font-weight: 460;
  font-size: clamp(38px, 5.4vw, 64px); line-height: 1.05;
  letter-spacing: -0.02em; margin: 0 0 18px; max-width: 17ch;
}
.lede { font-size: 20px; max-width: 42rem; color: var(--ink); margin: 0 0 28px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn {
  background: var(--accent); color: #fff; text-decoration: none;
  padding: 12px 18px; border-radius: 4px; font-weight: 560; font-size: 15px;
  border: 0; cursor: pointer;
}
.btn:hover { background: var(--accent-deep); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.proof {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  margin: 42px 0 10px; padding-top: 22px; border-top: 1px solid var(--line);
}
.proof strong { display: block; font-family: Fraunces, Georgia, serif; font-size: 28px; font-weight: 560; }
.proof span { color: var(--muted); font-size: 14px; }
section { padding: 56px 0; border-top: 1px solid var(--line); }
h2 {
  font-family: Fraunces, Georgia, serif; font-weight: 460;
  font-size: clamp(30px, 3.5vw, 42px); margin: 0 0 12px; letter-spacing: -0.02em;
}
.sub { color: var(--muted); max-width: 40rem; margin: 0 0 28px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid.problems { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--line); padding: 22px;
  border-radius: 6px;
}
.card.diagnostic { background: var(--card-light); }
.card.prototype { background: var(--card-medium); }
.card.production {
  background: var(--card-dark);
  border: 3px solid var(--ink);
}
.card.retainer {
  background: var(--card-medium);
  border: 2px dashed var(--muted);
}
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 560; }
.card p { margin: 0; color: var(--muted); }
.card.production h3 { font-weight: 620; }
.tag {
  display: inline-block; font-size: 12px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 8px; font-weight: 560;
}
.case { margin-bottom: 18px; }
.case h3 { margin: 6px 0 10px; font-size: 22px; font-family: Fraunces, Georgia, serif; font-weight: 560; }
.meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 14px; color: var(--ok); font-weight: 560; margin-bottom: 8px; }
.cols { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.cols h4 { margin: 0 0 6px; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.cols p { margin: 0; font-size: 15px; }
.cols > div:nth-child(3) {
  background: #f0e9df;
  padding: 14px;
  border-radius: 4px;
}
.cols > div:nth-child(3) h4 { color: var(--ok); }
.cols > div:nth-child(3) ul { 
  margin: 0; 
  padding-left: 18px; 
  color: var(--ok); 
  font-weight: 560; 
}
.cols > div:nth-child(3) li { margin-bottom: 6px; }

.ok {
  color: var(--ok);
  font-weight: 560;
}

.cols > div:nth-child(1) ul,
.cols > div:nth-child(2) ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.about { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 28px; }
ul.clean { margin: 12px 0 0; padding-left: 18px; color: var(--muted); }
form { display: grid; gap: 10px; }
label { font-size: 13px; color: var(--muted); }
input, textarea, select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  background: #fff; font: inherit; color: var(--ink); border-radius: 4px;
}
textarea { min-height: 110px; resize: vertical; }
footer { padding: 28px 0 48px; color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); text-decoration: none; vertical-align: middle; }
footer a:hover { color: var(--ink); }
@media (max-width: 800px) {
  .proof, .cols, .about { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .grid.problems { grid-template-columns: 1fr; }
  nav a { margin-left: 10px; }
}