/* ============================================
   SUNSHINE TECHWORKS - Design System
   Single shared stylesheet for the company site.
   PR Notify pages retain their own inline styles.
   ============================================ */


/* ============================================
   1. CUSTOM PROPERTIES
   Centralised design tokens so every component
   draws from the same palette and scale.
   ============================================ */
:root {
  /* --- Colours --- */
  --color-navy:        #0F172A;
  --color-navy-light:  #1E293B;
  --color-navy-mid:    #334155;
  --color-amber:       #F59E0B;
  --color-amber-light: #FBBF24;
  --color-amber-dark:  #D97706;
  --color-amber-soft:  #FEF3C7;
  --color-slate-50:    #F8FAFC;
  --color-slate-100:   #F1F5F9;
  --color-slate-200:   #E2E8F0;
  --color-slate-400:   #94A3B8;
  --color-slate-500:   #64748B;
  --color-slate-600:   #475569;
  --color-slate-700:   #334155;
  --color-slate-900:   #0F172A;
  --color-white:       #FFFFFF;

  /* --- Typography --- */
  --font-heading: 'Outfit', system-ui, sans-serif;
  --font-body:    'Plus Jakarta Sans', system-ui, sans-serif;

  /* Fluid type scale */
  --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 --- */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* --- Layout --- */
  --container-max:    1200px;
  --container-narrow: 800px;
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms ease;

  /* --- Shadows --- */
  --shadow-sm:   0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md:   0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg:   0 12px 32px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 0 24px rgba(245, 158, 11, 0.2);
}


/* ============================================
   2. RESET & BASE
   Normalise browser defaults and set sensible
   global styles.
   ============================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* Prevent iOS text size inflation on rotation */
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-navy);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}

/* Respect user motion preferences globally */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}


/* ============================================
   3. TYPOGRAPHY
   Heading hierarchy uses Outfit for a geometric,
   confident feel. Body uses Plus Jakarta Sans
   for warmth and readability.
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-navy);
}

h1 {
  font-size: clamp(2rem, 5vw + 1rem, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw + 0.5rem, 2.25rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--font-size-xl);
}

h4 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-slate-600);
}

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

/* Amber accent for key phrases */
.text-accent {
  color: var(--color-amber);
}

/* Light text for use on dark backgrounds */
.text-light {
  color: var(--color-slate-400);
}

.text-white {
  color: var(--color-white);
}

strong {
  font-weight: 600;
}


/* ============================================
   4. LAYOUT
   Container widths and standard section spacing.
   Uses clamp() for fluid gutters so the layout
   breathes on every viewport width.
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 3rem);
}

/* Standard vertical rhythm for page sections */
.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header p {
  margin-top: var(--space-md);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Alternating background for visual rhythm */
.bg-slate {
  background: var(--color-slate-50);
}

.bg-navy {
  background: var(--color-navy);
}

/* Light-coloured section header text on dark backgrounds */
.section-header-light h2 {
  color: var(--color-white);
}

.section-header-light p {
  color: var(--color-slate-400);
}


/* ============================================
   5. NAVIGATION
   Sticky nav with translucent blur backdrop.
   Hamburger toggle for mobile, animated bars
   that morph into an X.
   ============================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-slate-200);
  padding: var(--space-md) 0;
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* --- Logo --- */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--color-navy);
  text-decoration: none;
}

/* Geometric mark: amber square with "ST" initials */
.nav-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-amber);
  color: var(--color-navy);
  font-weight: 800;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

/* --- Nav links --- */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-slate-600);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--color-navy);
}

/* Active page indicator: amber underline */
.nav-link.is-active {
  color: var(--color-navy);
}

.nav-link.is-active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-amber);
  border-radius: var(--radius-full);
}

/* CTA button in nav */
.nav-cta {
  /* Uses .btn .btn-primary styles below, sized smaller for nav */
  font-size: var(--font-size-sm) !important;
  padding: 8px 20px !important;
}

/* --- Hamburger toggle (hidden on desktop) --- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-navy);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

/* Animated X state when menu is open */
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ============================================
   6. HERO
   Full-viewport hero with layered CSS animated
   background: gradient shift + dot grid + amber
   radial glow. No JavaScript needed.
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh; /* Small viewport height for mobile (avoids address bar) */
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-navy);
}

/* Animated gradient background layer */
.hero-bg {
  position: absolute;
  inset: 0;
  /* Slowly shifting radial gradient creates subtle movement */
  background: radial-gradient(
    ellipse 80% 60% at 30% 50%,
    var(--color-navy-light) 0%,
    var(--color-navy) 70%
  );
  background-size: 200% 200%;
  animation: gradientShift 20s ease-in-out infinite;
}

/* Dot grid pattern overlay suggesting data/neural networks */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    rgba(148, 163, 184, 0.15) 1px,
    transparent 1px
  );
  background-size: 32px 32px;
  animation: dotPulse 8s ease-in-out infinite;
}

/* Amber glow accent: warm "sunshine" highlight */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 65% 35%,
    rgba(245, 158, 11, 0.08) 0%,
    transparent 50%
  );
  animation: glowDrift 15s ease-in-out infinite;
}

.hero-content {
  position: relative; /* Above the background layers */
  z-index: 1;
  text-align: center;
  padding: var(--space-4xl) 0;
  max-width: 800px;
}

/* Small label above the main heading */
.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-amber);
  margin-bottom: var(--space-lg);
}

.hero-title {
  color: var(--color-white);
  margin-bottom: var(--space-xl);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-slate-400);
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Page-level header (shorter hero for inner pages) */
.page-header {
  position: relative;
  background: var(--color-navy);
  padding: var(--space-4xl) 0 var(--space-3xl);
  text-align: center;
  overflow: hidden;
}

/* Reuse dot grid on inner page headers at lower intensity */
.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    rgba(148, 163, 184, 0.08) 1px,
    transparent 1px
  );
  background-size: 32px 32px;
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.page-header-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-slate-400);
  max-width: 600px;
  margin: 0 auto;
}


/* ============================================
   7. BUTTONS
   Primary (amber bg, navy text) for strong CTAs.
   Secondary (outline) for softer actions.
   Navy on amber passes WCAG AA at 7.4:1.
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--font-size-base);
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* Amber background, navy text for maximum contrast */
.btn-primary {
  background: var(--color-amber);
  color: var(--color-navy);
  border-color: var(--color-amber);
}

.btn-primary:hover {
  background: var(--color-amber-light);
  border-color: var(--color-amber-light);
  box-shadow: var(--shadow-glow);
}

/* Outline button for secondary actions */
.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-slate-400);
}

.btn-secondary:hover {
  border-color: var(--color-white);
  color: var(--color-white);
}

/* Larger button variant for hero CTAs */
.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-lg);
}

/* Full-width button for forms */
.btn-full {
  width: 100%;
}


/* ============================================
   8. CARDS
   Shared card base with hover lift effect.
   Service cards get an amber top-border reveal
   on hover for visual emphasis.
   ============================================ */
.card-grid {
  display: grid;
  /* 2 columns on desktop for a balanced 2x2 layout with 4 service cards */
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Service cards: amber top border appears on hover */
.service-card {
  display: block;
  /* Invisible top border that becomes amber on hover */
  border-top: 3px solid transparent;
  text-decoration: none;
}

.service-card:hover {
  border-top-color: var(--color-amber);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-amber-soft);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  color: var(--color-amber-dark);
}

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

.card h3 {
  margin-bottom: var(--space-sm);
}

.card p {
  font-size: var(--font-size-sm);
}

/* "Learn more" link at card bottom */
.card-link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-amber-dark);
  transition: color var(--transition-fast);
}

.card:hover .card-link {
  color: var(--color-amber);
}

/* Smaller nav cards on services page */
.services-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.service-nav-card {
  display: block;
  text-align: center;
  padding: var(--space-xl);
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.service-nav-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-amber);
}

.service-nav-card h3 {
  font-size: var(--font-size-base);
  margin-top: var(--space-md);
}

.service-nav-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-amber-soft);
  border-radius: var(--radius-md);
  color: var(--color-amber-dark);
}

.service-nav-icon svg {
  width: 20px;
  height: 20px;
}


/* ============================================
   9. FORMS
   Clean form styling with generous padding
   and focus states using the amber accent.
   ============================================ */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-sm);
  color: var(--color-navy);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-navy);
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-amber);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

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

.form-select {
  appearance: none;
  /* Custom dropdown arrow */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%2364748B' d='M4.5 6l3.5 4 3.5-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

/* Form success message (shown after Formspree redirect) */
.form-success {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.form-success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-amber-soft);
  color: var(--color-amber-dark);
  font-size: var(--font-size-3xl);
  border-radius: var(--radius-full);
}

.form-success h3 {
  margin-bottom: var(--space-sm);
}


/* ============================================
   10. PAGE-SPECIFIC COMPONENTS
   Differentiators, service details, values,
   approach timeline, process steps, CTA banner.
   ============================================ */

/* --- Differentiators (Home page) --- */
.differentiators-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-2xl);
}

.differentiator-number {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-amber);
  margin-bottom: var(--space-md);
}

.differentiator h3 {
  margin-bottom: var(--space-sm);
}

/* --- Service detail sections (Services page) --- */
.service-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

/* Alternate layout: even sections flip content/visual sides */
.service-detail:nth-child(even) .service-detail-grid {
  direction: rtl;
}

.service-detail:nth-child(even) .service-detail-grid > * {
  direction: ltr;
}

.service-detail-label {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-amber);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.service-detail-content h2 {
  margin-bottom: var(--space-lg);
}

.service-detail-content h4 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--color-navy);
}

.service-deliverables {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.service-deliverables li {
  padding-left: var(--space-lg);
  position: relative;
  color: var(--color-slate-600);
  font-size: var(--font-size-sm);
}

/* Amber bullet marker */
.service-deliverables li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--color-amber);
  border-radius: var(--radius-full);
}

/* Decorative geometric element alongside service descriptions */
.service-detail-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
}

.service-visual-shape {
  width: 200px;
  height: 200px;
  border-radius: var(--radius-lg);
  background: var(--color-slate-50);
  border: 1px solid var(--color-slate-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-amber-dark);
}

.service-visual-shape svg {
  width: 80px;
  height: 80px;
  opacity: 0.6;
}

/* --- Values grid (About page) --- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

.value-card {
  background: var(--color-white);
  padding: var(--space-2xl);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-slate-200);
}

.value-card h3 {
  margin-bottom: var(--space-sm);
  color: var(--color-navy);
}

.value-card p {
  font-size: var(--font-size-sm);
}

/* --- Approach timeline (About page) --- */
.approach-steps {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}

/* Vertical connecting line */
.approach-steps::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-slate-200);
}

.approach-step {
  display: flex;
  gap: var(--space-xl);
  padding-bottom: var(--space-2xl);
  position: relative;
}

.approach-step:last-child {
  padding-bottom: 0;
}

/* Numbered amber circle marker */
.approach-step-marker {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--color-amber);
  color: var(--color-navy);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-base);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  /* Sit on top of the connecting line */
  position: relative;
  z-index: 1;
}

.approach-step-content h3 {
  margin-bottom: var(--space-xs);
}

.approach-step-content p {
  font-size: var(--font-size-sm);
}

/* --- Process steps (Services page, horizontal on desktop) --- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.process-step-number {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-amber);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-full);
}

.process-step h3 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.process-step p {
  font-size: var(--font-size-sm);
  color: var(--color-slate-400);
}

/* --- CTA banner --- */
.cta-banner {
  background: var(--color-navy);
  position: relative;
  overflow: hidden;
}

/* Subtle decorative amber accent behind the CTA */
.cta-banner::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: var(--radius-full);
}

.cta-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-banner-content h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.cta-banner-content p {
  color: var(--color-slate-400);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2xl);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}


/* ============================================
   11. FOOTER
   Navy background with 3-column grid layout.
   Collapses to single column on mobile.
   ============================================ */
.site-footer {
  background: var(--color-navy);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-2xl);
}

.footer-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--color-white);
  display: block;
  margin-bottom: var(--space-md);
}

.footer-brand p {
  color: var(--color-slate-400);
  font-size: var(--font-size-sm);
  max-width: 300px;
}

.footer-nav h4 {
  color: var(--color-white);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.footer-nav a {
  display: block;
  color: var(--color-slate-400);
  font-size: var(--font-size-sm);
  padding: var(--space-xs) 0;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-amber);
}

.footer-legal {
  border-top: 1px solid var(--color-navy-mid);
  padding-top: var(--space-xl);
  text-align: center;
}

.footer-legal p {
  color: var(--color-slate-500);
  font-size: var(--font-size-sm);
}


/* ============================================
   12. ANIMATIONS & KEYFRAMES
   Ambient hero animations (CSS-only) and scroll-
   triggered reveal animations (need small JS
   IntersectionObserver to add .is-visible class).
   ============================================ */

/* Hero gradient position shifts slowly for ambient motion */
@keyframes gradientShift {
  0%, 100% { background-position: 30% 50%; }
  50%      { background-position: 70% 50%; }
}

/* Dot grid fades in/out subtly */
@keyframes dotPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

/* Amber glow drifts slowly across the hero */
@keyframes glowDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(5%, -3%) scale(1.05); }
  66%      { transform: translate(-3%, 5%) scale(0.98); }
}

/* Entry animation for scroll-revealed elements */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Elements start invisible and offset, revealed by JS observer */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
}

.animate-on-scroll.is-visible {
  animation: fadeInUp 0.6s ease forwards;
}

/* Staggered delays so groups of elements cascade in */
.stagger-1.is-visible { animation-delay: 100ms; }
.stagger-2.is-visible { animation-delay: 200ms; }
.stagger-3.is-visible { animation-delay: 300ms; }
.stagger-4.is-visible { animation-delay: 400ms; }
.stagger-5.is-visible { animation-delay: 500ms; }
.stagger-6.is-visible { animation-delay: 600ms; }

/* Hero elements animate on page load, not on scroll */
.hero .hero-eyebrow,
.hero .hero-title,
.hero .hero-subtitle,
.hero .hero-actions {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.hero .hero-eyebrow  { animation-delay: 0ms; }
.hero .hero-title    { animation-delay: 150ms; }
.hero .hero-subtitle { animation-delay: 300ms; }
.hero .hero-actions  { animation-delay: 450ms; }


/* ============================================
   13. UTILITY CLASSES
   Screen reader helpers, text alignment, and
   focus styles for accessibility.
   ============================================ */

/* Visually hidden but accessible to screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip-to-content link: visible only on keyboard focus */
.sr-only-focusable:focus {
  position: fixed;
  top: var(--space-md);
  left: var(--space-md);
  z-index: 200;
  width: auto;
  height: auto;
  padding: var(--space-sm) var(--space-md);
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--color-amber);
  color: var(--color-navy);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

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

/* Custom focus styles: amber outline, only on keyboard nav */
:focus-visible {
  outline: 2px solid var(--color-amber);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* No-JS fallback: if JS fails to remove .no-js from <html>,
   all scroll-animated elements remain visible */
.no-js .animate-on-scroll {
  opacity: 1;
  transform: none;
}


/* ============================================
   14. RESPONSIVE BREAKPOINTS
   Desktop-first since the design was conceived
   for wide viewports. Three breakpoints handle
   tablet landscape, tablet portrait, and mobile.
   ============================================ */

/* --- Tablet landscape (1024px and below) --- */
@media (max-width: 1024px) {
  .service-detail-grid {
    gap: var(--space-2xl);
  }

  .footer-grid {
    gap: var(--space-2xl);
  }
}

/* --- Tablet portrait (768px and below) --- */
@media (max-width: 768px) {
  /* Navigation collapses to hamburger */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    /* Hidden by default on mobile, revealed by JS toggle */
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-slate-200);
    padding: var(--space-md) clamp(1rem, 4vw, 3rem);
    gap: 0;
    box-shadow: var(--shadow-md);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-link {
    padding: var(--space-md) 0;
    font-size: var(--font-size-base);
    /* 48px minimum touch target */
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .nav-link.is-active::after {
    display: none;
  }

  .nav-cta {
    margin-top: var(--space-sm);
    text-align: center;
    justify-content: center;
  }

  /* Service detail sections stack vertically */
  .service-detail-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  /* Undo RTL direction trick on stacked layout */
  .service-detail:nth-child(even) .service-detail-grid {
    direction: ltr;
  }

  .service-detail-visual {
    min-height: 160px;
  }

  /* Process steps go 2-column */
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Footer collapses */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  /* Section spacing tightens */
  .section {
    padding: var(--space-3xl) 0;
  }
}

/* --- Mobile (600px and below) --- */
@media (max-width: 600px) {
  /* Hero buttons stack vertically */
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 320px;
  }

  /* All grids collapse to single column */
  .card-grid,
  .differentiators-grid,
  .values-grid,
  .services-nav-grid {
    grid-template-columns: 1fr;
  }

  /* Process steps go single column */
  .process-grid {
    grid-template-columns: 1fr;
  }

  /* Footer single column */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: center;
  }

  .footer-brand p {
    max-width: none;
  }

  /* Tighter section spacing on mobile */
  .section {
    padding: var(--space-2xl) 0;
  }

  .section-header {
    margin-bottom: var(--space-2xl);
  }

  .page-header {
    padding: var(--space-3xl) 0 var(--space-2xl);
  }
}


/* ============================================
   15. REDUCED MOTION
   Respect the user's accessibility preference
   by disabling all animations and transitions.
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  /* Ensure animated elements are visible immediately */
  .animate-on-scroll,
  .hero .hero-eyebrow,
  .hero .hero-title,
  .hero .hero-subtitle,
  .hero .hero-actions {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }
}