/* Global design system tokens */
:root {
  color-scheme: light dark;

  /* Color palette */
  --brand-hue: 212;
  --brand: hsl(var(--brand-hue), 90%, 55%);
  --brand-accent: hsl(var(--brand-hue), 95%, 63%);
  --brand-strong: hsl(var(--brand-hue), 92%, 48%);
  --brand-stronger: hsl(var(--brand-hue), 95%, 40%);
  --ink: hsl(222, 44%, 15%);
  --ink-soft: hsl(222, 22%, 35%);
  --bg: hsl(215, 45%, 98%);
  --bg-soft: hsl(215, 40%, 92%);
  --card-bg: hsla(0, 0%, 100%, 0.82);
  --card-border: hsla(var(--brand-hue), 90%, 50%, 0.18);

  /* Typography scale */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Line heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 24px 48px -32px rgba(15, 40, 90, 0.55);
  --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-xl: 0 30px 60px -15px rgba(0, 0, 0, 0.3);

  /* Border radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.35, 0, 0.25, 1);
  --transition: 220ms cubic-bezier(0.35, 0, 0.25, 1);
  --transition-slow: 300ms cubic-bezier(0.35, 0, 0.25, 1);

  /* Container and layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1440px;
}

/* Smooth anchors respect sticky header space */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}

/* Dark theme overrides for high contrast */
[data-theme="dark"] {
  --ink: hsl(210, 38%, 96%);
  --ink-soft: hsl(210, 20%, 78%);
  --bg: hsl(222, 32%, 6%);
  --bg-soft: hsl(222, 30%, 12%);
  --card-bg: hsla(222, 42%, 18%, 0.96);
  --card-border: rgba(125, 190, 255, 0.42);
  --brand: hsl(204, 100%, 58%);
  --brand-accent: hsl(199, 100%, 66%);
  --brand-strong: hsl(204, 100%, 52%);
  --brand-stronger: hsl(204, 100%, 44%);
  --shadow: 0 28px 54px -26px rgba(5, 10, 28, 0.92);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 30px 60px -15px rgba(0, 0, 0, 0.8);
}

/* Apply consistent sizing across elements */
* {
  box-sizing: border-box;
}

/* Base typography and layout foundation */
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: var(--leading-relaxed);
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Improved text selection */
::selection {
  background: rgba(97, 171, 255, 0.3);
  color: inherit;
}

/* Better focus styles for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Link styling relies on color rather than underline */
a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: none;
}

a:focus-visible {
  outline: 3px solid rgba(97, 171, 255, 0.4);
  outline-offset: 4px;
  text-decoration: none;
}

/* Background washes add depth without extra markup */
body::before,
body::after {
  content: "";
  position: fixed;
  inset: -120px;
  z-index: -2;
  background-color: var(--bg-soft);
  background-image: radial-gradient(ellipse at top right, rgba(97, 171, 255, 0.35), transparent 55%),
    radial-gradient(ellipse at 10% 90%, rgba(21, 214, 255, 0.25), transparent 60%),
    radial-gradient(ellipse at center, rgba(72, 73, 255, 0.12), transparent 65%);
  filter: blur(0.4px);
}

body::after {
  background-image: radial-gradient(circle at 10% 15%, rgba(159, 243, 255, 0.35), transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(52, 112, 255, 0.25), transparent 50%);
  opacity: 0.75;
  z-index: -3;
}

/* Dark theme gradients tuned for Safari rendering */
[data-theme="dark"] body::before {
  background-color: var(--bg-soft);
  background-image: radial-gradient(ellipse at 80% 5%, rgba(90, 150, 255, 0.22), transparent 55%),
    radial-gradient(ellipse at 12% 88%, rgba(60, 130, 255, 0.18), transparent 60%),
    radial-gradient(ellipse at center, rgba(40, 70, 200, 0.12), transparent 68%);
}

[data-theme="dark"] body::after {
  background-image: radial-gradient(circle at 15% 20%, rgba(125, 190, 255, 0.32), transparent 48%),
    radial-gradient(circle at 75% 75%, rgba(70, 120, 230, 0.2), transparent 55%);
  opacity: 0.6;
}

/* Sticky header keeps navigation visible */
header {
  position: sticky;
  top: 0;
  backdrop-filter: saturate(140%) blur(16px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid var(--card-border);
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

/* Dark mode header polish */
[data-theme="dark"] header {
  background: rgba(8, 12, 28, 0.95);
  border-bottom-color: var(--card-border);
  box-shadow: var(--shadow);
}

/* Flexible navigation layout */
nav {
  max-width: var(--container-xl);
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  gap: var(--space-5);
  flex-wrap: wrap;
}

/* Navigation controls wrapper */
.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

/* Theme controls wrapper for buttons */
.theme-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Brand lockup anchors the header */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(220, 237, 255, 0.4));
  padding: 8px;
}

.brand span {
  font-weight: 650;
  letter-spacing: 0.02em;
  font-size: 1.1rem;
}

/* Primary nav links */
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin: 0;
  padding: 0;
  justify-content: center;
}

.nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-2xl);
  transition: all var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--brand);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.nav-links a:focus-visible {
  outline: none;
}

/* Circular theme toggle button */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 0;
  padding: 0;
  border-radius: var(--radius-2xl);
  background: rgba(97, 171, 255, 0.15);
  color: inherit;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.theme-toggle::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--brand), var(--brand-accent));
  opacity: 0;
  transition: opacity var(--transition);
  border-radius: inherit;
}

.theme-toggle:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-lg);
  background: rgba(97, 171, 255, 0.25);
}

.theme-toggle:hover::before {
  opacity: 0.1;
}

.theme-toggle:active {
  transform: translateY(-1px) scale(1.02);
}

.theme-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(97, 171, 255, 0.35);
}

/* Icon slots swap based on active theme */
.theme-toggle .icon {
  display: none;
  align-items: center;
  justify-content: center;
}

.theme-toggle .icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

.theme-toggle .icon-sun svg {
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle .icon-moon svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle[data-mode='light'] .icon-sun,
.theme-toggle[data-mode='dark'] .icon-moon {
  display: inline-flex;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  white-space: nowrap;
}

/* Container system */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Constrain main content width */
main {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-24);
}

/* Utility classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

/* Hero balances copy with metrics */
.hero {
  padding: var(--space-32) 0 var(--space-20);
  display: grid;
  gap: var(--space-16);
  min-height: 80vh;
  align-items: center;
}

.hero-content {
  display: grid;
  gap: var(--space-8);
  max-width: 640px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: var(--font-size-xs);
  color: var(--brand);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

h1 {
  font-size: clamp(var(--font-size-4xl), 4vw, var(--font-size-5xl));
  line-height: var(--leading-tight);
  margin: 0;
  letter-spacing: -0.03em;
  font-weight: 800;
  color: var(--ink);
}

p {
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--font-size-lg);
  line-height: var(--leading-relaxed);
}

/* Action buttons adapt to wrapping */
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* Shared button styling */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-2xl);
  border: 0;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--transition);
}

.btn.primary {
  background: linear-gradient(135deg, var(--brand-stronger) 0%, var(--brand-strong) 50%, var(--brand-accent) 100%);
  color: #fff;
  border: 1px solid rgba(15, 76, 170, 0.35);
}

.btn.secondary {
  background: transparent;
  color: var(--brand);
  border: 1px solid rgba(97, 171, 255, 0.4);
  box-shadow: none;
}

.btn:hover,
.btn:focus {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.btn:hover::before,
.btn:focus::before {
  opacity: 0.1;
}

.btn.primary::before {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.1));
}

.btn.secondary:hover,
.btn.secondary:focus {
  background: rgba(97, 171, 255, 0.15);
  border-color: var(--brand);
}

.btn:active {
  transform: translateY(-1px) scale(1.01);
}

/* Metric cards grid */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
}

/* Frosted metric card styling */
.metric-card {
  padding: var(--space-6);
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}

.metric-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.3), transparent 68%);
  opacity: 0;
  transition: opacity var(--transition);
}

.metric-card:hover::after {
  opacity: 1;
}

.metric-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--brand);
}

/* Section padding rhythm */
section {
  padding: 80px 0;
  position: relative;
}

section+section {
  border-top: 1px solid rgba(97, 171, 255, 0.16);
}

/* Section heading layout */
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 42px;
}

h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  letter-spacing: -0.02em;
}

.section-heading p {
  max-width: 520px;
}

/* Service cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 28px;
}

/* Service card chrome */
.card {
  padding: 28px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(97, 171, 255, 0.25), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(97, 171, 255, 0.45);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  margin-top: 0;
  font-size: 1.2rem;
}

.card strong {
  display: block;
  margin: 24px 0 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--brand);
  text-align: center;
}

/* Eyebrow pill for section labels */
.pill {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(97, 171, 255, 0.12);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

/* Two-column responsive grid */
.grid-two {
  display: grid;
  gap: 36px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: center;
}

/* Base list reset */
.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.list li {
  position: relative;
  padding-left: 28px;
  color: var(--ink-soft);
}

/* Default list marker */
.list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 14px;
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-accent) 100%);
  box-shadow: 0 10px 24px -15px var(--brand);
}

/* Enhanced marker layout for key lists */
.list-marked {
  justify-items: start;
  gap: 12px;
  text-align: left;
}

.list-marked li {
  padding-left: 0;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  color: var(--ink-soft);
  font-weight: 500;
}

.list-marked li::before {
  position: static;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 8px 18px -12px var(--brand);
  display: inline-block;
}

/* Case study cards */
.case-study {
  position: relative;
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(120deg, rgba(97, 171, 255, 0.22), rgba(97, 171, 255, 0));
  border: 1px solid rgba(97, 171, 255, 0.24);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.case-study h3 {
  margin: 0 0 16px;
}

.case-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 18px;
}

.case-results {
  display: grid;
  gap: 12px;
}

/* Case metrics copy */
.case-result {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--ink-soft);
}

/* Metric icon container */
.case-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: rgba(97, 171, 255, 0.14);
  color: var(--brand);
  flex-shrink: 0;
  box-shadow: 0 12px 28px -20px rgba(13, 84, 176, 0.65);
}

[data-theme="dark"] .case-icon {
  background: rgba(125, 190, 255, 0.12);
  color: var(--brand-accent);
  box-shadow: 0 16px 36px -22px rgba(5, 10, 28, 0.85);
}

.case-icon svg {
  width: 22px;
  height: 22px;
  display: block;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

/* Metric copy stack */
.case-copy {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.case-result strong {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: -0.02em;
}

/* Insights cards grid */
.insights-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* Insight card styling */
.insight {
  padding: 24px;
  border-radius: var(--radius-md);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  transition: transform var(--transition), border-color var(--transition);
}

.insight:hover {
  transform: translateY(-4px);
  border-color: rgba(97, 171, 255, 0.4);
}

/* Insight link emphasis */
.insight a {
  color: var(--brand);
  font-weight: 600;
}

.insight a:hover,
.insight a:focus-visible {
  color: var(--brand-accent);
}

.insight time {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* Contact call-to-action styling */
.cta {
  padding: 60px 56px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(97, 171, 255, 0.22);
  background: linear-gradient(135deg, rgba(97, 171, 255, 0.28), rgba(97, 171, 255, 0));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  text-align: center;
}

.cta p {
  margin-bottom: 32px;
  margin-top: 16px;
}

/* Enhanced Footer Layout */
footer {
  padding: 60px 24px;
  border-top: 1px solid rgba(97, 171, 255, 0.16);
  background: var(--bg);
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  align-items: start;
}

.footer-brand p {
  margin: 0;
  line-height: 1.6;
}

.footer-brand .tagline {
  margin-top: 8px;
  font-style: italic;
  opacity: 0.8;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.footer-section h4 {
  margin: 0 0 16px 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.footer-section li {
  margin-bottom: 8px;
}

.footer-section a {
  color: var(--ink-soft);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-section a:hover {
  color: var(--brand);
  text-decoration: underline;
}

.footer-section a:focus {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Reveal animation baseline */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* Mobile adjustments */
@media (max-width: 720px) {
  html {
    scroll-padding-top: 140px;
  }

  /* Navigation controls mobile layout */
  .nav-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    max-height: 100vh;
    width: 75%;
    max-width: 300px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    padding: 24px;
    gap: 24px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 100;
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
    border-left: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
  }

  [data-theme="dark"] .nav-links {
    background: rgba(8, 12, 28, 0.98);
    border-left: 1px solid rgba(125, 190, 255, 0.2);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.4);
  }

  .nav-links.active {
    transform: translateX(0);
  }

  /* Close menu button */
  .close-menu {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: 0;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    z-index: 10;
  }

  .close-menu:hover,
  .close-menu:focus {
    background: rgba(0, 0, 0, 0.2);
    transform: scale(1.1);
  }

  .close-menu svg {
    width: 20px;
    height: 20px;
    stroke: var(--ink);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  /* Dark mode close button */
  [data-theme="dark"] .close-menu {
    background: rgba(255, 255, 255, 0.1);
  }

  [data-theme="dark"] .close-menu:hover,
  [data-theme="dark"] .close-menu:focus {
    background: rgba(255, 255, 255, 0.2);
  }

  [data-theme="dark"] .close-menu svg {
    stroke: var(--ink);
  }

  .nav-links a {
    font-size: 1.2rem;
    width: 100%;
    text-align: center;
    padding: 12px;
    color: var(--ink);
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition);
  }

  .nav-links a:hover,
  .nav-links a:focus {
    background: rgba(97, 171, 255, 0.25);
    color: var(--brand-stronger);
    transform: translateY(-1px);
  }

  /* Dark mode specific link styling */
  [data-theme="dark"] .nav-links a {
    color: var(--ink);
  }

  [data-theme="dark"] .nav-links a:hover,
  [data-theme="dark"] .nav-links a:focus {
    background: rgba(125, 190, 255, 0.2);
    color: var(--brand-accent);
  }

  .hero {
    padding-top: 96px;
  }

  .section-heading {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-actions {
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .theme-toggle {
    display: none !important;
    margin-left: 0;
    height: 52px;
    border-radius: var(--radius-sm);
  }

  .mobile-theme-toggle::before {
    background: none;
    opacity: 0;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  /* Hamburger Menu Button */
  .menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-1);
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    z-index: 101;
    border-radius: var(--radius-md);
    transition: all var(--transition);
  }

  .menu-toggle:hover {
    background: rgba(97, 171, 255, 0.1);
  }

  .menu-toggle:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
  }

  .menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--ink);
    border-radius: var(--radius-xs);
    margin: 0 auto;
    transition: all var(--transition);
    transform-origin: center;
  }

  /* Animate hamburger to X when menu is open */
  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Mobile Theme Toggle Button */
  .mobile-theme-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 0;
    padding: 0;
    border-radius: var(--radius-md);
    background: rgba(97, 171, 255, 0.2);
    color: inherit;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 14px 32px -20px rgba(13, 84, 176, 0.6);
  }

  .mobile-theme-toggle:hover,
  .mobile-theme-toggle:focus-visible {
    background: rgba(97, 171, 255, 0.32);
    transform: translateY(-1px);
    box-shadow: 0 16px 32px -18px rgba(13, 84, 176, 0.7);
  }

  .mobile-theme-toggle:focus-visible {
    outline: 0;
    box-shadow: 0 0 0 3px rgba(97, 171, 255, 0.35);
  }

  .mobile-theme-toggle .icon {
    display: none;
    align-items: center;
    justify-content: center;
  }

  .mobile-theme-toggle .icon svg {
    width: 22px;
    height: 22px;
    display: block;
  }

  .mobile-theme-toggle .icon-sun svg {
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .mobile-theme-toggle .icon-moon svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .mobile-theme-toggle[data-mode='light'] .icon-sun,
  .mobile-theme-toggle[data-mode='dark'] .icon-moon {
    display: inline-flex;
  }
}

/* Mobile Theme Toggle - Hidden on Desktop */
.mobile-theme-toggle {
  display: none;
}


@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}

/* Privacy Page Layout */
.privacy-header {
  margin-bottom: 60px;
  max-width: 800px;
}

.privacy-header h1 {
  margin-bottom: 24px;
}

.last-updated {
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--ink-soft);
  font-style: italic;
}

.privacy-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--space-16);
  align-items: start;
}

.privacy-sidebar {
  position: sticky;
  top: 140px;
}

.toc {
  padding-left: 24px;
  border-left: 1px solid rgba(97, 171, 255, 0.2);
}

.toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toc a {
  display: block;
  font-size: 0.9rem;
  color: var(--ink-soft);
  transition: color var(--transition);
  line-height: 1.4;
}

.toc a:hover,
.toc a.active {
  color: var(--brand);
  font-weight: 500;
}

.privacy-content-wrapper {
  min-width: 0;
  /* Prevent grid blowout */
}

.privacy-content {
  display: grid;
  gap: 64px;
  margin-bottom: 80px;
}

.article-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.article-header h2 {
  font-size: 1.8rem;
  margin: 0;
}

.icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(97, 171, 255, 0.12);
  color: var(--brand);
  flex-shrink: 0;
}

.icon-box svg {
  width: 24px;
  height: 24px;
}

.privacy-content p {
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 68ch;
  margin-bottom: 16px;
}

.privacy-content .list {
  margin-top: 16px;
}

/* Responsive adjustments for Privacy Page */
@media (max-width: 720px) {
  .privacy-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .privacy-sidebar {
    position: static;
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--card-border);
  }

  .toc {
    border-left: none;
    padding-left: 0;
  }

  .toc ul {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
  }

  /* Mobile navigation improvements */
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    max-height: 100vh;
    width: 80%;
    max-width: 320px;
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    padding: var(--space-6);
    gap: var(--space-6);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1001;
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
  }

  [data-theme="dark"] .nav-links {
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.4);
  }

  .nav-links.active {
    transform: translateX(0);
  }

  /* Prevent body scroll when mobile menu is open */
  body.nav-menu-open {
    overflow: hidden;
  }

  /* Create overlay using sibling approach - add this to nav-links container */
  .nav-links::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(4px);
    z-index: -1;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
  }

  /* Dark mode overlay styling */
  [data-theme="dark"] .nav-links::before {
    background: rgba(0, 0, 0, 0.7);
  }

  .nav-links.active::before {
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: var(--font-size-lg);
    width: 100%;
    text-align: center;
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 2;
  }

  /* Hero mobile adjustments */
  .hero {
    padding: var(--space-20) 0 var(--space-16);
    min-height: 60vh;
    text-align: center;
  }

  .hero-content {
    gap: var(--space-6);
    max-width: 100%;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .metric-card {
    padding: var(--space-5);
  }

  /* Section mobile spacing */
  section {
    padding: var(--space-16) 0;
  }

  .section-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  /* Cards mobile layout */
  .cards {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  /* Footer mobile responsive styles */
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--space-6);
    text-align: left;
  }

  .footer-section h4 {
    text-align: left;
  }

  footer {
    padding: var(--space-12) var(--space-5);
  }
}

/* Desktop styles - Standard tablet breakpoint and up */
@media (min-width: 768px) {
  /* Hide mobile navigation elements immediately */
  .menu-toggle,
  .mobile-theme-toggle,
  .close-menu {
    display: none !important;
    visibility: hidden !important;
  }

  /* Desktop navigation styles */
  nav {
    padding: var(--space-5) var(--space-6);
  }

  .nav-controls {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    flex: 1 1 auto;
  }

  .nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-5);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin: 0;
    padding: 0;
    flex: 1 1 auto;
    justify-content: center;
  }

  .nav-links a {
    color: var(--ink-soft);
    text-decoration: none;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-2xl);
    transition: all var(--transition);
    position: relative;
  }

  .nav-links a:hover,
  .nav-links a:focus {
    color: var(--brand);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
  }

  .nav-links a:focus-visible {
    outline: none;
  }

  /* Theme controls for tablet+ */
  .theme-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
  }

  /* Theme toggle for tablet+ */
  .theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 0;
    padding: 0;
    border-radius: var(--radius-2xl);
    background: rgba(97, 171, 255, 0.15);
    color: inherit;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
  }

  .theme-toggle::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--brand), var(--brand-accent));
    opacity: 0;
    transition: opacity var(--transition);
    border-radius: inherit;
  }

  .theme-toggle:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-lg);
    background: rgba(97, 171, 255, 0.25);
  }

  .theme-toggle:hover::before {
    opacity: 0.1;
  }

  .theme-toggle:active {
    transform: translateY(-1px) scale(1.02);
  }

  .theme-toggle:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(97, 171, 255, 0.35);
  }

  .theme-toggle .icon {
    display: none;
    align-items: center;
    justify-content: center;
  }

  .theme-toggle .icon svg {
    width: 22px;
    height: 22px;
    display: block;
  }

  .theme-toggle .icon-sun svg {
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .theme-toggle .icon-moon svg {
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .theme-toggle[data-mode='light'] .icon-sun,
  .theme-toggle[data-mode='dark'] .icon-moon {
    display: inline-flex;
  }

  /* Hide mobile elements on tablet+ */
  .menu-toggle,
  .mobile-theme-toggle,
  .close-menu {
    display: none;
  }

  /* Grid layouts for medium screens */
  @media (max-width: 1200px) {
    .cards {
      grid-template-columns: repeat(2, 1fr);
      gap: var(--space-5);
    }

    .footer-links {
      grid-template-columns: repeat(2, 1fr);
      gap: var(--space-5);
    }
  }
}

/* Tablet-specific grid layouts */
@media (min-width: 768px) and (max-width: 1024px) {
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
}