/* =========================================================
   DemandGoodQA — Demand Good Public Health
   Global Stylesheet
   ========================================================= */

:root {
  /* Brand palette */
  --navy: #063f7c;
  --navy-dark: #032c57;
  --navy-light: #0a5aa8;
  --teal: #0176d4;
  --teal-dark: #015aa8;
  --teal-light: #e6f2fc;
  --green: #3aa0e8;
  --green-light: #e8f4fd;
  --white: #ffffff;
  --offwhite: #f6f9fa;
  --gray-50: #f3f6f7;
  --gray-100: #e6ecee;
  --gray-300: #c3cfd3;
  --gray-500: #6b7d84;
  --gray-700: #3c4a50;
  --text: #142430;

  /* Typography */
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;

  /* Layout */
  --max-width: 1180px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(11, 47, 74, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 47, 74, 0.12);
  --shadow-lg: 0 20px 45px rgba(11, 47, 74, 0.18);
  --transition: 0.2s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 700;
  margin: 0 0 0.6em;
  color: var(--navy-dark);
}

h1 { font-size: clamp(2.1rem, 4vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

p {
  margin: 0 0 1em;
  color: var(--gray-700);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 88px 0;
}

.section-tight { padding: 56px 0; }

.section-alt {
  background: var(--offwhite);
}

.section-navy {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: var(--white);
}
.section-navy h2, .section-navy h3, .section-navy p { color: var(--white); }
.section-navy p { color: rgba(255,255,255,0.85); }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal-dark);
  background: var(--teal-light);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-navy .eyebrow {
  color: var(--white);
  background: rgba(255,255,255,0.12);
}

.section-head {
  max-width: 720px;
  margin: 0 0 48px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 14px 28px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--teal);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--teal-dark);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: var(--white);
}

.btn-block { width: 100%; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--gray-100);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--navy-dark);
}
.brand-logo { height: 44px; width: auto; display: block; }
.footer-brand .brand-logo { background: #fff; padding: 8px 12px; border-radius: 10px; height: 52px; }
.brand-text .tagline {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--gray-500);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--gray-700);
  transition: color var(--transition);
}
.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--teal-dark);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy-dark);
  margin: 5px 0;
  transition: transform var(--transition), opacity var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-dark) 70%);
  color: var(--white);
  padding: 96px 0 110px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(1,118,212,0.35) 0%, rgba(1,118,212,0) 70%);
}
.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 640px);
  gap: 24px;
}
.hero h1 { color: var(--white); margin-bottom: 20px; }
.hero .lead {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.85);
  max-width: 620px;
  margin-bottom: 32px;
}
.page-hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-dark) 70%);
  color: var(--white);
  padding: 72px 0 64px;
  text-align: center;
}
.page-hero h1 { color: var(--white); }
.page-hero p { color: rgba(255,255,255,0.85); max-width: 680px; margin: 0 auto; }

/* ---------- Audience strip ---------- */
.audience-strip {
  background: var(--navy-dark);
  padding: 22px 0;
}
.audience-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  justify-content: center;
  align-items: center;
}
.audience-list li {
  color: rgba(255,255,255,0.85);
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.audience-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

/* ---------- Grids & Cards ---------- */
.grid {
  display: grid;
  gap: 28px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--teal-light);
  color: var(--teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.problem-solution {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.ps-card {
  padding: 36px;
  border-radius: var(--radius);
}
.ps-problem {
  background: #fdf3ee;
  border: 1px solid #f3ded0;
}
.ps-solution {
  background: var(--green-light);
  border: 1px solid #cfead9;
}
.ps-card h3 { margin-bottom: 16px; }
.ps-card ul li {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--gray-700);
}

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 28px 24px 24px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
}
.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 16px;
}

/* ---------- Pricing ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}
.price-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.price-card.featured {
  border: 2px solid var(--teal);
  box-shadow: var(--shadow-lg);
  transform: scale(1.02);
}
.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--teal);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.price-card .price {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--navy-dark);
  margin: 12px 0 4px;
}
.price-card .price span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-500);
}
.price-savings {
  font-size: 0.85rem;
  color: var(--green);
  font-weight: 700;
  margin-bottom: 20px;
}
.price-card ul {
  margin: 20px 0 28px;
  flex-grow: 1;
}
.price-card ul li {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--gray-700);
}
.price-card ul li .check {
  color: var(--teal-dark);
  font-weight: 800;
}

/* ---------- Community ---------- */
.community-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---------- FAQ Accordion ---------- */
.accordion-item {
  border-bottom: 1px solid var(--gray-100);
}
.accordion-trigger {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 4px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-dark);
  cursor: pointer;
}
.accordion-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--teal-light);
  color: var(--teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  transition: transform var(--transition);
}
.accordion-item[data-open="true"] .accordion-icon {
  transform: rotate(45deg);
}
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}
.accordion-panel-inner {
  padding: 0 4px 22px;
  color: var(--gray-700);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--navy-dark);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gray-300);
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--text);
  background: var(--white);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: 2px solid var(--teal);
  outline-offset: 1px;
  border-color: var(--teal);
}
.contact-side .card { margin-bottom: 24px; }
.contact-side .card:last-child { margin-bottom: 0; }

/* ---------- Final CTA ---------- */
.final-cta {
  text-align: center;
  padding: 96px 0;
}
.final-cta h2 { max-width: 640px; margin-left: auto; margin-right: auto; }
.final-cta .cta-row { justify-content: center; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.75);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}
.footer-brand .brand { color: var(--white); margin-bottom: 14px; }
.footer-brand p { color: rgba(255,255,255,0.65); max-width: 320px; }
.footer-col h4 {
  color: var(--white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col a {
  color: rgba(255,255,255,0.7);
  font-size: 0.94rem;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
}
.footer-bottom a { color: rgba(255,255,255,0.55); }
.footer-bottom a:hover { color: var(--white); }

/* ---------- Legal pages ---------- */
.legal-content h2 { margin-top: 1.6em; }
.legal-content ul { margin: 0 0 1em 1.2em; list-style: disc; }
.legal-content ul li { margin-bottom: 8px; color: var(--gray-700); }
.legal-content { max-width: 820px; margin: 0 auto; }
.legal-updated {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

/* ---------- Topic pills ---------- */
.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.pill {
  background: var(--teal-light);
  color: var(--teal-dark);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 10px 18px;
  border-radius: 999px;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.muted { color: var(--gray-500); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .grid-3, .grid-4, .pricing-grid, .steps, .community-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-solution { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-links, .nav-actions .btn { display: none; }
  .nav-toggle { display: block; }
  body.nav-open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--gray-100);
    gap: 18px;
  }
  body.nav-open .nav-actions .btn { display: inline-flex; }
  .grid-2, .grid-3, .grid-4, .pricing-grid, .steps, .community-grid { grid-template-columns: 1fr; }
  .price-card.featured { transform: none; }
  section { padding: 64px 0; }
  .footer-grid { grid-template-columns: 1fr; }
}