/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@600;700;800&family=Barlow:wght@300;400;500;600;700;800&display=swap');

/* Variables */
:root {
  --accent:       #bfe9ff;
  --dark-text:    #0d1b2e;
  --dark-text2:   #243550;
  --gray-text:    #4a5568;
  --border-dark:  rgba(13, 27, 46, .12);
  --bg-light:     #f6f8fb;
  --ease:         cubic-bezier(.16, 1, .3, 1);
  --font-sans:    'Barlow', sans-serif;
  --font-cond:    'Barlow Condensed', sans-serif;
}

*, *::before, *::after { 
    box-sizing: border-box; 
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background-color: #fff;
  background-image:
    linear-gradient(rgba(13,27,46,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,27,46,.04) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: center top;
  color: var(--dark-text);
  -webkit-font-smoothing: antialiased;
}

/* Custom Cursor */
#custom-cursor { 
    pointer-events: none; 
    position: fixed; 
    z-index: 9999; 
}

.cursor-dot {
  width: 6px; 
  height: 6px;
  background: var(--dark-text);
  border-radius: 50%;
  position: fixed;
  transform: translate(-50%, -50%);
  transition: transform .1s;
}

.cursor-ring {
  width: 32px; 
  height: 32px;
  border: 1.5px solid rgba(13,27,46,.35);
  border-radius: 50%;
  position: fixed;
  transform: translate(-50%, -50%);
  transition: transform .18s var(--ease), width .25s var(--ease), height .25s var(--ease);
}

/* Navbar */
.rn-navbar {
  position: fixed;
  top: 0; left: 0; 
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 56px;
  height: 64px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1.5px solid var(--border-dark);
  transition: background .3s, box-shadow .3s;
}

.rn-navbar.scrolled {
  background: rgba(255,255,255,.98);
  box-shadow: 0 1px 0 var(--border-dark);
}

.rn-navbar.dark-bg {
  background: rgba(13,27,46,.92);
  border-bottom-color: rgba(255,255,255,.08);
}

.rn-nav-logo img {
  height: 36px;
  width: auto;
  display: block;
}

.rn-nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.rn-nav-links a {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--dark-text);
  text-decoration: none;
  opacity: .65;
  transition: opacity .2s;
}

.rn-nav-links a:hover { 
    opacity: 1; 
}

/* Hero */
.rn-hero {
  position: relative;
  min-height: 52vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 88px 56px 0;
  overflow: hidden;
  background-color: transparent;
}

/* Subtle grid */
.rn-hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Top accent bar */
.rn-hero::before {
  content: '';
  position: absolute;
  top: 0; 
  left: 0; 
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, rgba(191,233,255,0) 60%);
  z-index: 3;
}

.rn-hero-eyebrow {
  position: relative;
  z-index: 2;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gray-text);
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  animation: rnReveal .9s var(--ease) .2s forwards;
}

.rn-hero-title {
  position: relative;
  z-index: 2;
  font-family: var(--font-cond);
  font-size: clamp(38px, 5.5vw, 88px);
  font-weight: 700;
  color: var(--dark-text);
  letter-spacing: -.01em;
  line-height: .95;
  text-transform: uppercase;
  margin: 0 0 24px;
  max-width: 860px;
  opacity: 0;
  transform: translateY(40px);
  animation: rnReveal 1.1s var(--ease) .4s forwards;
}

.rn-hero-subtitle {
  position: relative;
  z-index: 2;
  font-size: clamp(14px, 1.2vw, 18px);
  font-weight: 400;
  line-height: 1.6;
  color: var(--gray-text);
  max-width: 680px;
  margin: 0 0 12px;
  opacity: 0;
  transform: translateY(20px);
  animation: rnReveal .9s var(--ease) .65s forwards;
}

.rn-hero-meta {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
  opacity: 0;
  transform: translateY(16px);
  animation: rnReveal .8s var(--ease) .85s forwards;
}

.rn-hero-tag {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--dark-text2);
  background: var(--bg-light);
  border: 1.5px solid var(--border-dark);
  padding: 5px 14px;
  border-radius: 2px;
}

.rn-hero-date {
  font-size: 12px;
  font-weight: 400;
  color: var(--gray-text);
  opacity: .65;
}

/* Hero Logos */
.rn-logo-wrap {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  margin-top: 20px;
  margin-left: 65px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  opacity: 0;
  transform: translateY(24px);
  animation: rnReveal 1s var(--ease) 1s forwards;
}

.rn-logo-wrap img {
  height: 36px;
  width: auto;
  display: block;
  object-fit: contain;
}

/* Article Body */
.rn-body {
  position: relative;
  z-index: 2;
  background-color: transparent;
  padding-left: 6px;
  max-width: 1200px;
  margin: 20px auto;
}

/* Article Content */
.rn-content {
  max-width: 780px;
}

/* Divider between image and body */
.rn-body-divider {
  width: 100%;
  height: 1.5px;
  background: var(--border-dark);
  margin-bottom: 64px;
}

/* Section headings inside article */
.rn-content h1 {
  font-family: var(--font-cond);
  font-size: clamp(26px, 3vw, 44px);
  font-weight: 700;
  color: var(--dark-text);
  text-transform: uppercase;
  letter-spacing: .01em;
  line-height: 1.05;
  margin: 56px 0 20px;
  padding-top: 56px;
  border-top: 1.5px solid var(--border-dark);
}

.rn-content h1:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.rn-content h2 {
  font-family: var(--font-cond);
  font-size: clamp(20px, 2.2vw, 32px);
  font-weight: 700;
  color: var(--dark-text);
  text-transform: uppercase;
  letter-spacing: .01em;
  line-height: 1.1;
  margin: 48px 0 16px;
}

.rn-content h3 {
  font-size: clamp(13px, 1.1vw, 15px);
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--dark-text2);
  margin: 36px 0 14px;
  padding-bottom: 10px;
  border-bottom: 1.5px solid var(--border-dark);
}

.rn-content h4 {
  font-size: clamp(13px, 1.1vw, 15px);
  font-weight: 600;
  color: var(--dark-text);
  margin: 28px 0 10px;
}

/* Body text */
.rn-content p {
  font-size: clamp(16px, 1.08vw, 18px);
  font-weight: 300;
  line-height: 1.85;
  color: var(--dark-text);
  margin: 0 0 20px;
}

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

.rn-content strong, .rn-content b {
  color: var(--dark-text);
  font-weight: 500;
}

/* Lists */
.rn-content ol, .rn-content ul {
  margin: 0 0 24px;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rn-content ul { 
    list-style: none; 
}

.rn-content ul li {
  display: flex;
  gap: 16px;
  font-size: clamp(14px, 1.05vw, 16px);
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-text);
}

.rn-content ul li::before {
  content: '';
  display: block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--dark-text2);
  opacity: .4;
  flex-shrink: 0;
  margin-top: 10px;
}

/* Nested unordered inside ordered */
.rn-content ol li > ol, .rn-content ol li > ul {
  margin-top: 10px;
  margin-bottom: 0;
  padding-left: 20px;
}

.rn-content ol {
  list-style: none;
  counter-reset: rn-counter;
}

.rn-content ol > li {
  counter-increment: rn-counter;
  display: flex;
  gap: 16px;
  font-size: clamp(14px, 1.05vw, 16px);
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-text);
}

.rn-content ol > li::before {
  content: counter(rn-counter, decimal) ".";
  font-size: 11px;
  font-weight: 600;
  color: var(--dark-text2);
  opacity: .55;
  flex-shrink: 0;
  padding-top: 4px;
  min-width: 20px;
}

/* Disc list override */
.rn-content ol[style*="disc"],
.rn-content ul[style*="disc"] {
  list-style: none;
}

.rn-content ol[style*="disc"] > li::before,
.rn-content ul[style*="disc"] > li::before {
  content: '';
  display: block;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--dark-text2);
  opacity: .4;
  flex-shrink: 0;
  margin-top: 10px;
  counter-increment: none;
}

/* Disc li content should not use counter */
.rn-content ol[style*="disc"] > li,
.rn-content ul[style*="disc"] > li {
  counter-increment: none;
}

/*  Blockquote  */
.rn-content blockquote {
  border-left: 2px solid rgba(13,27,46,.2);
  background: var(--bg-light);
  padding: 24px 28px;
  margin: 32px 0;
  border-radius: 0 4px 4px 0;
}

.rn-content blockquote b i,
.rn-content blockquote i {
  font-size: clamp(14px, 1.05vw, 16px);
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-text);
  font-style: italic;
}

.rn-content blockquote footer {
  font-size: 12px;
  font-weight: 500;
  color: var(--dark-text2);
  margin-top: 12px;
  opacity: .7;
}

/* Callout / Info box */
.rn-callout {
  border-left: 2px solid rgba(13,27,46,.2);
  background: var(--bg-light);
  padding: 24px 28px;
  margin: 32px 0;
  border-radius: 0 4px 4px 0;
}

.rn-callout p {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-text);
  margin: 0;
}

/* Tables */
.rn-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  -webkit-overflow-scrolling: touch;
}

.rn-content table {
  width: 100%;
  border-collapse: collapse;
  border: 1.5px solid var(--border-dark);
  font-size: 14px;
}

.rn-content th,
.rn-content td {
  border: 1.5px solid var(--border-dark);
  padding: 14px 16px;
  text-align: left;
  font-weight: 300;
  color: var(--gray-text);
  line-height: 1.5;
}

.rn-content thead th {
  background: var(--bg-light);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--dark-text2);
  text-align: center;
}

/* Inline images in article */
.rn-content img.blog-banner-image,
.rn-content img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
}

/* Links in article */
.rn-content a {
  color: var(--dark-text);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(13,27,46,.25);
  transition: border-color .2s;
}

.rn-content a:hover { 
    border-color: var(--dark-text); 
}

/* Last updated / meta */
.rn-last-updated {
  display: inline-block;
  margin-top: 48px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--gray-text);
  opacity: .5;
}

/*  Footer  */
.rn-footer {
  background:
    radial-gradient(ellipse at 72% 10%, #1e3d6a 0%, transparent 48%),
    radial-gradient(ellipse at 12% 90%, #0c1a33 0%, transparent 52%),
    linear-gradient(138deg, #0d1b36 0%, #142848 38%, #1a3460 72%, #1d3a66 100%);
  position: relative;
  padding: 60px 56px 48px;
}

.rn-footer::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.68' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.032'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  pointer-events: none;
  z-index: 0;
}

.rn-footer-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.rn-footer-brand {
  font-family: var(--font-cond);
  font-size: 28px;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.rn-footer-tagline {
  font-size: 13px;
  font-weight: 300;
  color: rgba(255,255,255,.4);
  line-height: 1.6;
  margin-top: 10px;
  max-width: 280px;
}

.rn-footer-nav {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 4px;
}

.rn-footer-nav a {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
  text-decoration: none;
  transition: color .2s;
}

.rn-footer-nav a:hover { 
    color: rgba(255,255,255,.9); 
}

/* Scroll-reveal for sections */
.rn-reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .85s var(--ease), transform .85s var(--ease);
}

.rn-reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Keyframes */
@keyframes rnReveal {
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

/* Custom list styles */
.rn-content ul.custom-list {
  list-style: none;
  padding-left: 0;
  counter-reset: step-counter;
}

.rn-content ul.custom-list li {
  position: relative;
  display: block;
  padding-left: 65px;
  font-size: clamp(14px, 1.05vw, 16px);
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-text);
  margin-bottom: 12px;
}

.rn-content ul.custom-list li::before {
  counter-increment: step-counter;
  content: "Step " counter(step-counter) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 600;
  color: var(--dark-text2);
  width: auto;
  height: auto;
  background: transparent;
  border-radius: 0;
  opacity: 1;
  margin-top: 0;
}

/* Custom list styles */
ul.custom-list {
  list-style: none;
  padding-left: 0;
}

ul.custom-list li {
  position: relative;
  padding-left: 70px;
  font-size: clamp(14px, 1.05vw, 16px);
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-text);
  margin-bottom: 10px;
}

ul.custom-list li::before {
  font-weight: 600;
  color: var(--dark-text2);
  position: absolute;
  left: 0;
}

ul.custom-list li:nth-child(1)::before { 
    content: "Step 1. "; 
}

ul.custom-list li:nth-child(2)::before { 
    content: "Step 2. "; 
}

ul.custom-list li:nth-child(3)::before { 
    content: "Step 3. "; 
}

ul.custom-list li:nth-child(4)::before { 
    content: "Step 4. "; 
}

/* Coloured headers used in NHS case study */
.rn-content [style*="color: royalblue"],
.rn-content [style*="color:royalblue"] {
  font-family: var(--font-cond);
  font-size: clamp(14px, 1.4vw, 18px);
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/*  Responsive  */
@media (max-width: 900px) {
  .rn-navbar { 
    padding: 0 32px; 
  }

  .rn-hero  { 
    padding: 80px 32px 0; 
  }

  .rn-logo-wrap {
    margin-left: 20px;
  }

  .rn-body  { 
    padding: 12px 20px 80px; 
  }

  .rn-footer { 
    padding: 48px 32px 40px; 
  }
}

@media (max-width: 640px) {
  .rn-navbar { 
    padding: 0 20px; 
  }

  .rn-hero  { 
    padding: 72px 20px 0; 
  }

  .rn-logo-wrap { 
    margin-left: 20px;
  }

  .rn-body  { 
    padding: 12px 20px 80px; 
  }

  .rn-footer { 
    padding: 40px 20px 32px; 
  }

  .rn-footer-inner { 
    flex-direction: column; 
    gap: 28px; 
  }

  .rn-nav-links { 
    gap: 20px; 
  }
}