/* ─────────────────────────────────────────────────────────────
   CADS BD Intelligence — marketing + support pages
   Promega-themed (yellow #F0AB00 primary, black foreground)
   ───────────────────────────────────────────────────────────── */

:root {
  --primary: #F0AB00;
  --primary-dark: #C68A00;
  --bg: #FAFAF7;
  --card: #FFFFFF;
  --border: #E2E0DA;
  --text: #1A1A1A;
  --text-muted: #555;
  --danger: #E63946;
  --success: #4E8C0F;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Header ────────────────────────────────────────────────── */
header {
  background: var(--primary);
  color: var(--text);
  padding: 1rem 0;
  border-bottom: 1px solid var(--primary-dark);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.nav-links { display: flex; gap: 20px; }
.nav-links a {
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ─── Hero ──────────────────────────────────────────────────── */
.hero {
  padding: 64px 0 48px;
  text-align: left;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.hero p.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 0 24px;
}

/* ─── Section ───────────────────────────────────────────────── */
section { padding: 32px 0; }
section h2 {
  font-size: 1.6rem;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}

/* ─── Feature grid ──────────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ─── Form ──────────────────────────────────────────────────── */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  max-width: 560px;
}

.field { margin-bottom: 16px; }

.field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-family: inherit;
  font-size: 1rem;
  color: var(--text);
  transition: border-color 0.15s;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 3px rgba(240, 171, 0, 0.15);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

button.primary {
  background: var(--primary);
  color: var(--text);
  border: 0;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.15s;
}

button.primary:hover { background: var(--primary-dark); color: #fff; }
button.primary:disabled { opacity: 0.6; cursor: default; }

.form-status {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
  display: none;
}

.form-status.success {
  background: #E8F5E9;
  border: 1px solid var(--success);
  color: var(--success);
  display: block;
}

.form-status.error {
  background: #FCE4E4;
  border: 1px solid var(--danger);
  color: var(--danger);
  display: block;
}

/* ─── FAQ ───────────────────────────────────────────────────── */
.faq details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 10px;
}

.faq summary {
  font-weight: 600;
  cursor: pointer;
  outline: none;
}

.faq details[open] summary { margin-bottom: 10px; }

.faq p {
  margin: 0;
  color: var(--text-muted);
}

/* ─── Footer ────────────────────────────────────────────────── */
footer {
  margin-top: 64px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

/* ─── Mobile ────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .hero { padding: 40px 0 32px; }
  .nav-links { gap: 14px; }
  .form-card { padding: 20px; }
}