/* ============================================================
   NHS Flu & COVID-19 Vaccinations — Dedicated Page Styles (flu- prefix)
   ACCENT: Teal-green for NHS health/vaccination feel
   ============================================================ */

:root {
  --flu-accent: #0d9488;
  --flu-accent-light: #ccfbf1;
  --flu-accent-glow: rgba(13,148,136,0.15);
}

/* ============================================
   HERO
   ============================================ */
.flu-hero {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 50%, var(--dark-blue) 100%);
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
  color: var(--white);
}

.flu-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.flu-hero-orb {
  position: absolute;
  border-radius: 50%;
}

.flu-hero-orb-1 {
  width: 600px;
  height: 600px;
  top: -200px;
  right: -150px;
  background: radial-gradient(circle, rgba(90,127,196,0.2) 0%, transparent 70%);
}

.flu-hero-orb-2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -100px;
  background: radial-gradient(circle, rgba(90,127,196,0.12) 0%, transparent 70%);
}

.flu-hero-container {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.flu-hero-text {
  text-align: center;
}

.flu-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--white);
  margin-bottom: 28px;
}

.flu-hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--white);
}

.flu-hero h1 .gradient-text {
  background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.flu-hero-sub {
  font-size: 20px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin-bottom: 16px;
  line-height: 1.5;
}

.flu-hero-body {
  font-size: 17px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.flu-hero-ctas {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.flu-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  background: var(--white);
  color: var(--primary-blue);
  text-decoration: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 700;
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.flu-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

/* ============================================
   SHARED SECTION STYLES
   ============================================ */
.flu-section { padding: 80px 0; position: relative; }
.flu-section-light { background: #fff; }

.flu-section-accent {
  background: linear-gradient(135deg, #f0f7ff 0%, #f8fafd 100%);
}

.flu-section-dark {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 50%, var(--dark-blue) 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.flu-dark-bg { position: absolute; inset: 0; pointer-events: none; }
.flu-dark-orb { position: absolute; border-radius: 50%; }
.flu-dark-orb-1 { width: 500px; height: 500px; top: -200px; right: -100px; background: radial-gradient(circle, rgba(90,127,196,0.15) 0%, transparent 70%); }
.flu-dark-orb-2 { width: 400px; height: 400px; bottom: -150px; left: -80px; background: radial-gradient(circle, rgba(90,127,196,0.08) 0%, transparent 70%); }
.flu-dark-container { position: relative; z-index: 2; }

.flu-section-header {
  text-align: center;
  margin-bottom: 48px;
}

.flu-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(10,47,138,0.08);
  color: var(--primary-blue);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.flu-pill-light {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.15);
}

/* ============================================
   ELIGIBILITY CARDS
   ============================================ */
.flu-eligibility-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.flu-eligibility-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px;
  border: 1px solid rgba(10,47,138,0.1);
  box-shadow: 0 4px 24px rgba(10,47,138,0.06);
}

.flu-eligibility-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.flu-check-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.flu-check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-dark);
  line-height: 1.5;
}

.flu-check-list svg {
  color: var(--flu-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.flu-eligibility-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  max-width: 700px;
  margin: 32px auto 0;
  padding: 20px 24px;
  background: var(--flu-accent-light);
  border-radius: 12px;
  border-left: 4px solid var(--flu-accent);
}

.flu-eligibility-note svg {
  color: var(--flu-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.flu-eligibility-note p {
  font-size: 15px;
  color: var(--text-dark);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   WHY CHOOSE US CARDS
   ============================================ */
.flu-why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.flu-why-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 36px;
  border: 1px solid rgba(255,255,255,0.12);
  border-top: 3px solid var(--flu-accent);
  text-align: center;
  transition: all 0.3s;
}

.flu-why-card:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-4px);
}

.flu-why-icon {
  width: 64px;
  height: 64px;
  background: rgba(13,148,136,0.2);
  border: 1px solid rgba(13,148,136,0.3);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  margin: 0 auto 20px;
}

.flu-why-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.flu-why-card p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}

/* ============================================
   TIMING CARDS (Section 4)
   ============================================ */
.flu-timing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.flu-timing-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px;
  border: 1px solid rgba(10,47,138,0.1);
  box-shadow: 0 4px 24px rgba(10,47,138,0.06);
  transition: all 0.3s;
}

.flu-timing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(10,47,138,0.1);
}

.flu-timing-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.flu-timing-icon--flu {
  background: rgba(13,148,136,0.1);
  color: var(--flu-accent);
  border: 1px solid rgba(13,148,136,0.2);
}

.flu-timing-icon--covid {
  background: rgba(99,102,241,0.1);
  color: #6366f1;
  border: 1px solid rgba(99,102,241,0.2);
}

.flu-timing-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 12px;
}

.flu-timing-card p {
  font-size: 15px;
  color: var(--text-gray);
  line-height: 1.7;
}

/* ============================================
   STEP CARDS (Section 5 — dark background)
   ============================================ */
.flu-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.flu-step-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 36px;
  border: 1px solid rgba(255,255,255,0.12);
  transition: all 0.3s;
}

.flu-step-card:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-4px);
}

.flu-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--flu-accent);
  color: var(--white);
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 20px;
}

.flu-step-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
  line-height: 1.3;
}

.flu-step-card p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}

/* ============================================
   CONTENT BLOCK (fallback for simple text sections)
   ============================================ */
.flu-content-block {
  max-width: 800px;
  margin: 0 auto;
}

.flu-content-block p {
  font-size: 17px;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 20px;
}

.flu-content-block p:last-child { margin-bottom: 0; }

/* ============================================
   DISCLAIMER
   ============================================ */
.flu-disclaimer {
  max-width: 800px;
  margin: 40px auto 0;
  padding: 20px 24px;
  background: rgba(10,47,138,0.04);
  border-radius: 12px;
  border: 1px solid rgba(10,47,138,0.08);
}

.flu-disclaimer p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.6;
  margin: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .flu-hero h1 { font-size: 36px; }
  .flu-eligibility-grid { grid-template-columns: 1fr; }
  .flu-why-grid { grid-template-columns: 1fr; max-width: 500px; }
  .flu-timing-grid { grid-template-columns: 1fr; }
  .flu-steps-grid { grid-template-columns: 1fr; max-width: 500px; }
}

@media (max-width: 640px) {
  .flu-hero { padding: 120px 0 60px; }
  .flu-hero h1 { font-size: 28px; }
  .flu-hero-sub { font-size: 17px; }
  .flu-section { padding: 60px 0; }
}