/* ==========================================================================
   LIGHTBURN - MODERN LIGHT DESIGN SYSTEM & SOURCED IMAGES
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  /* Light Color Palette */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  
  --accent-glow: #2563eb;
  --accent-emerald: #059669;
  --accent-violet: #7c3aed;
  --border-color: #e2e8f0;
  --border-glow: #cbd5e1;

  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', var(--font-sans);

  /* Layout */
  --max-width: 1320px;
  --header-height: 80px;

  /* Shadows & Transitions */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 40px -10px rgba(15, 23, 42, 0.12);

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Global Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Top Notification Bar */
.top-banner {
  background: #f1f5f9;
  border-bottom: 1px solid var(--border-color);
  padding: 10px 20px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-primary);
}

.top-banner a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-glow);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 600;
}

.top-banner a:hover {
  color: #1d4ed8;
}

.top-banner .pill {
  background: #e2e8f0;
  color: var(--text-primary);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

/* Header & Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  font-weight: 600;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-glow);
  border-radius: 2px;
}

.header-cta {
  background: var(--text-primary);
  color: #ffffff;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.header-cta:hover {
  transform: translateY(-2px);
  background: #1e293b;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Mobile Menu */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background: var(--bg-primary);
  padding: 40px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 24px;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.mobile-nav a.active,
.mobile-nav a:hover {
  color: var(--text-primary);
}

/* Common Layout Elements */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 100px 0;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-glow);
  margin-bottom: 16px;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.section-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
}

/* Hero Section */
.hero {
  padding: 120px 0 80px 0;
  position: relative;
  background: radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.75rem, 5vw, 4.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: clamp(1.15rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  margin-bottom: 44px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-img-card {
  width: 100%;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.hero-img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.btn-primary {
  background: var(--text-primary);
  color: #ffffff;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: #1e293b;
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  background: #ffffff;
  color: var(--text-primary);
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

/* Process Component / DVCP */
.process-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-top: 50px;
}

.process-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
}

.process-card:hover {
  border-color: var(--accent-glow);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.process-card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.process-card-body {
  padding: 32px;
}

.process-number {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-glow);
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}

.process-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.process-desc {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* 4 Pillars / Services Grid */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 50px;
}

@media (max-width: 900px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
}

.pillar-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-md);
}

.pillar-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.pillar-body {
  padding: 36px;
}

.pillar-title {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.pillar-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.75;
}

/* Portfolio / Case Studies */
.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
  flex-wrap: wrap;
  gap: 20px;
}

.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--text-primary);
  color: #ffffff;
  border-color: var(--text-primary);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

@media (max-width: 850px) {
  .case-grid {
    grid-template-columns: 1fr;
  }
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg);
}

.case-image-holder {
  width: 100%;
  height: 280px;
  background-size: cover;
  background-position: center;
  position: relative;
  transition: transform 0.5s ease;
}

.case-card:hover .case-image-holder {
  transform: scale(1.03);
}

/* Sourced Image Backgrounds */
.case-img-wildfork {
  background-image: url('https://images.unsplash.com/photo-1544025162-d76694265947?auto=format&fit=crop&w=1200&q=80');
}

.case-img-employbridge {
  background-image: url('https://images.unsplash.com/photo-1521737711867-e3b97375f902?auto=format&fit=crop&w=1200&q=80');
}

.case-img-culligan {
  background-image: url('https://images.unsplash.com/photo-1548839140-29a749e1cf4e?auto=format&fit=crop&w=1200&q=80');
}

.case-img-colony {
  background-image: url('https://images.unsplash.com/photo-1581092160607-ee22621dd758?auto=format&fit=crop&w=1200&q=80');
}

.case-img-mather {
  background-image: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1200&q=80');
}

.case-body {
  padding: 32px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #ffffff;
  position: relative;
  z-index: 2;
}

.case-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.case-tag {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.case-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* Team / Leadership Section */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-smooth);
}

.team-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.team-avatar-img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px auto;
  border: 2px solid var(--border-color);
}

.team-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.team-role {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.team-social {
  color: var(--accent-glow);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.team-social:hover {
  text-decoration: underline;
}

/* Case Study Single Detail Page Styling */
.cs-hero {
  padding: 100px 0 60px 0;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.cs-banner-img {
  width: 100%;
  max-height: 450px;
  object-fit: cover;
  border-radius: 20px;
  margin-top: 40px;
  box-shadow: var(--shadow-md);
}

.cs-meta {
  display: flex;
  gap: 24px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.cs-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cs-meta-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.cs-meta-value {
  font-weight: 600;
  color: var(--text-primary);
}

.cs-body {
  padding: 80px 0;
  max-width: 800px;
}

.cs-body h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin: 40px 0 20px 0;
  color: var(--text-primary);
}

.cs-body p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 24px;
}

.cs-inline-img {
  width: 100%;
  max-height: 380px;
  object-fit: cover;
  border-radius: 16px;
  margin: 32px 0;
  box-shadow: var(--shadow-sm);
}

.cs-stat-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  margin: 40px 0;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.cs-stat-number {
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--accent-glow);
  line-height: 1;
  margin-bottom: 8px;
}

.cs-stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Contact CTA Footer */
.footer-cta {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 100px 0 60px 0;
  text-align: center;
}

.footer-main {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 60px 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 60px;
}

@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h4 {
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}

/* Media Queries */
@media (max-width: 768px) {
  .nav-links, .header-cta {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .section-padding {
    padding: 60px 0;
  }
  .hero {
    padding: 80px 0 50px 0;
  }
}