/* DossierIQ Mandate — website preview
   Palette and typography taken from 00_Source_of_Truth/Brand_Visual_Identity.md (2026-05-09).
   Navy / teal / gold three-colour identity. Inter as the marketing-equivalent typeface.
*/

:root {
  /* Core identity */
  --color-primary: #1F3864;       /* brand navy */
  --color-primary-dark: #152744;  /* hover */
  --color-primary-light: #2D4F8A;
  --color-accent: #0D7B8A;        /* teal */
  --color-accent-dark: #0A6270;
  --color-gold: #C8922A;          /* active / accent */

  /* Surfaces */
  --color-surface: #FFFFFF;
  --color-surface-alt: #F5F6F8;
  --color-border: #E2E5EA;

  /* Text */
  --color-text: #1F3864;          /* navy body & heading */
  --color-text-muted: #6B7280;
  --color-text-on-dark: #FFFFFF;
  --color-text-on-dark-muted: rgba(255, 255, 255, 0.65);

  /* States */
  --color-success: #16A34A;
  --color-warning: #D97706;
  --color-critical: #DC2626;

  --max-width: 1100px;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover { color: var(--color-accent-dark); }

/* Preview banner — kept yellow to distinguish from production */
.preview-banner {
  background: #FFF8E1;
  border-bottom: 2px solid var(--color-gold);
  padding: 10px 24px;
  font-size: 13px;
  text-align: center;
  color: #6B4F00;
}

/* Site header — navy chrome to match the application's primary nav */
.site-header {
  background: var(--color-primary);
  border-bottom: 1px solid var(--color-primary-dark);
  padding: 14px 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.brand img {
  display: block;
  height: 44px;
  width: auto;
  /* The supplied primary-light logo has a white rectangle behind the lockup,
     which sits cleanly inside the navy header bar without clashing. */
  border-radius: 4px;
}

.site-nav {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--color-text-on-dark-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  letter-spacing: 0.01em;
}

.site-nav a:hover { color: var(--color-text-on-dark); }

.site-nav a.active {
  color: var(--color-text-on-dark);
  border-bottom-color: var(--color-gold);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 24px 24px;
}

.hero {
  padding: 24px 0 56px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 56px;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 14px;
}

h1 {
  font-size: 48px;
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 0 0 18px;
  color: var(--color-text);
}

.tagline {
  font-size: 26px;
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 24px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.lede {
  font-size: 19px;
  color: var(--color-text-muted);
  max-width: 760px;
  margin: 0 0 32px;
  line-height: 1.6;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  letter-spacing: 0.01em;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-on-dark);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-text-on-dark);
  border-color: var(--color-primary-dark);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-surface-alt);
  color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

section { margin: 56px 0; }

h2 {
  font-size: 30px;
  line-height: 1.22;
  letter-spacing: -0.015em;
  font-weight: 600;
  margin: 0 0 20px;
  color: var(--color-text);
}

h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 28px 0 10px;
  color: var(--color-text);
  letter-spacing: -0.005em;
}

p { margin: 0 0 16px; max-width: 760px; color: var(--color-text); }

ul, ol { padding-left: 22px; max-width: 760px; }
li { margin: 6px 0; }

/* Callout — used for inline CTA blocks. Navy-edged white card. */
.callout {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-gold);
  padding: 22px 26px;
  margin: 32px 0;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.04);
}

.callout p:last-child { margin-bottom: 0; }

/* Reviewer / placeholder notice — distinct from preview banner */
.placeholder-notice {
  background: #FFF5F0;
  border: 1px solid #F3C9B8;
  color: #8A3324;
  padding: 14px 20px;
  margin-bottom: 32px;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1.5;
}

.placeholder-notice strong { color: #6B2818; }

/* Two-column grids used on Product, Why, Use Cases */
.section-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 36px;
  margin: 24px 0;
}

.section-grid h3 { margin-top: 0; }

/* FAQ items */
.faq-item { padding: 18px 0; border-bottom: 1px solid var(--color-border); }
.faq-item:last-child { border-bottom: none; }
.faq-item h3 { margin: 0 0 6px; }

/* Contact form (Contact page) */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 560px;
  margin: 16px 0 24px;
}

.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.contact-form input,
.contact-form textarea {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text);
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(13, 123, 138, 0.15);
}

.contact-form textarea { resize: vertical; min-height: 120px; }

.contact-form button { align-self: flex-start; margin-top: 4px; }

.form-note {
  font-size: 13px;
  color: var(--color-text-muted);
  font-style: italic;
  margin: 4px 0 0;
}

.form-note code {
  background: var(--color-surface-alt);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 12px;
}

/* Site footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  padding: 28px 24px;
  margin-top: 72px;
  font-size: 14px;
  color: var(--color-text-muted);
}

.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 720px) {
  h1 { font-size: 34px; }
  .tagline { font-size: 21px; }
  .lede { font-size: 17px; }
  main { padding: 40px 20px 20px; }
  .site-header-inner { flex-direction: column; align-items: flex-start; }
  .section-grid { grid-template-columns: 1fr; }
}