:root {
  --bg: #fbf6ee;
  --ink: #2b211a;
  --muted: #6e5f52;
  --accent: #c8402b;
  --card: #ffffff;
  --line: #eaded0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

header {
  background: var(--ink);
  color: var(--bg);
}

.nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--bg);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.logo span { color: var(--accent); }

.nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--bg);
  text-decoration: none;
  font-family: Helvetica, Arial, sans-serif;
  font-size: 0.95rem;
}

.nav a:hover,
.nav a.active { color: var(--accent); }

.hero {
  max-width: 960px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  margin: 0 0 1rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 600px;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

h2 {
  font-size: 1.8rem;
  margin-top: 2.5rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  padding-bottom: 0.2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.5rem;
}

.card h3 {
  margin: 0 0 0.5rem;
  color: var(--accent);
}

.card .tag {
  display: inline-block;
  font-family: Helvetica, Arial, sans-serif;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-family: Helvetica, Arial, sans-serif;
  margin-top: 1rem;
}

.button:hover { opacity: 0.9; }

ol.steps li { margin-bottom: 1rem; }

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  background: var(--card);
}

th, td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
}

th {
  font-family: Helvetica, Arial, sans-serif;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

footer {
  border-top: 1px solid var(--line);
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---- additions: forms, builder, images, responsive ---- */
.illustration {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1rem 0 0;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.5rem;
  margin-top: 1.5rem;
}

fieldset { border: 0; padding: 0; margin: 0 0 1.25rem; }
legend { font-weight: bold; margin-bottom: 0.5rem; padding: 0; }
fieldset label { display: block; padding: 0.2rem 0; font-family: Helvetica, Arial, sans-serif; }

.panel > label { display: block; margin-top: 1rem; font-family: Helvetica, Arial, sans-serif; }
input[type="text"], input[type="email"], textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  margin-top: 0.3rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: var(--accent); }
.error { color: var(--accent); font-size: 0.9rem; margin: 0.25rem 0 0; min-height: 1.1em; }
.success { color: #2e7d32; margin-top: 1rem; }
button.button { border: 0; cursor: pointer; font-size: 1rem; }

.meter {
  height: 14px;
  background: var(--line);
  border-radius: 7px;
  overflow: hidden;
  margin: 0.5rem 0 1rem;
}
#meter-fill { height: 100%; width: 0; background: var(--accent); transition: width 0.3s ease; }
.result h2 { margin-top: 0; }

@media (max-width: 600px) {
  .nav ul { flex-wrap: wrap; gap: 0.75rem 1.25rem; }
  .hero { padding: 2.5rem 1.25rem 2rem; }
  table { display: block; overflow-x: auto; }
}