/* ==========================================================================
   Design System & Global Variables
   ========================================================================== */
:root {
  /* Brand Palette */
  --color-chartreuse: #A8CF45;
  --color-verdigris: #696639;
  --color-gold: #D4AF37;
  --color-leaf: #89B829;
  
  /* Fonts */
  --font-display: 'Outfit', sans-serif;
  --font-serif: 'Playfair Display', serif;
  
  /* Theme: Dark (Default) */
  --bg-main: #11140E;
  --bg-alt: #161A12;
  --bg-card: rgba(22, 26, 18, 0.6);
  --bg-header: rgba(17, 20, 14, 0.75);
  
  --text-main: #ECEFEA;
  --text-muted: #A6AEA0;
  --text-inverse: #11140E;
  
  --border-color: rgba(168, 207, 69, 0.15);
  --border-color-glow: rgba(168, 207, 69, 0.3);
  
  --glow-shadow: 0 0 25px rgba(168, 207, 69, 0.15);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  --card-hover-shadow: 0 12px 40px 0 rgba(168, 207, 69, 0.1);
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  
  /* Scroll behavior */
  scroll-behavior: smooth;
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-main: #F7F9F5;
  --bg-alt: #EFF2EB;
  --bg-card: rgba(239, 242, 235, 0.7);
  --bg-header: rgba(247, 249, 245, 0.8);
  
  --text-main: #20241A;
  --text-muted: #575F4E;
  --text-inverse: #F7F9F5;
  
  --border-color: rgba(105, 102, 57, 0.12);
  --border-color-glow: rgba(105, 102, 57, 0.25);
  
  --glow-shadow: 0 0 25px rgba(105, 102, 57, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(105, 102, 57, 0.06);
  --card-hover-shadow: 0 12px 40px 0 rgba(105, 102, 57, 0.12);
}

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

body {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-main);
  transition: background-color 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.25;
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

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

/* ==========================================================================
   Layout & Typography Utilities
   ========================================================================== */
.container {
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}

.section {
  padding-top: 100px;
  padding-bottom: 100px;
  position: relative;
}

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

.grid {
  display: grid;
  gap: 32px;
}

.grid-2-col {
  grid-template-columns: 1fr;
}

@media(min-width: 768px) {
  .grid-2-col {
    grid-template-columns: 1fr 1fr;
  }
}

.grid-3-col {
  grid-template-columns: 1fr;
}

@media(min-width: 768px) {
  .grid-3-col {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 1024px) {
  .grid-3-col {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4-col {
  grid-template-columns: repeat(2, 1fr);
}

@media(min-width: 1024px) {
  .grid-4-col {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

.align-items-stretch {
  align-items: stretch;
}

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

.text-white {
  color: #FFFFFF !important;
}

.text-light {
  color: rgba(255, 255, 255, 0.7) !important;
}

.section-header-centered {
  margin-bottom: 60px;
}

.max-w-700 {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.margin-top-lg {
  margin-top: 48px;
}

/* Badges & Section Headings */
.section-badge {
  display: inline-block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--color-chartreuse);
  margin-bottom: 12px;
  position: relative;
  letter-spacing: 0.5px;
}

[data-theme="light"] .section-badge {
  color: var(--color-verdigris);
}

.section-badge.badge-accent {
  color: var(--color-chartreuse) !important;
}

.section-badge::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background-color: currentColor;
  margin-top: 4px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}

@media(min-width: 768px) {
  .section-title {
    font-size: 2.85rem;
  }
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--color-chartreuse);
  color: var(--text-inverse);
  box-shadow: var(--glow-shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(168, 207, 69, 0.4);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  background-color: rgba(255, 255, 255, 0.03);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--color-chartreuse);
  transform: translateY(-2px);
}

[data-theme="light"] .btn-secondary:hover {
  background-color: rgba(0, 0, 0, 0.03);
  border-color: var(--color-verdigris);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition);
}

.site-header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 48px;
  width: auto;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-text .accent-text {
  color: var(--color-chartreuse);
}

[data-theme="light"] .logo-text .accent-text {
  color: var(--color-verdigris);
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 24px;
}

.nav-list a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 8px 0;
}

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

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-chartreuse);
  transition: var(--transition);
}

[data-theme="light"] .nav-list a::after {
  background-color: var(--color-verdigris);
}

.nav-list a.active::after,
.nav-list a:hover::after {
  width: 100%;
}

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

/* Theme Toggle Button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background-color: rgba(255, 255, 255, 0.02);
  transition: var(--transition);
}

.theme-toggle:hover {
  border-color: var(--color-chartreuse);
  background-color: rgba(255, 255, 255, 0.08);
}

[data-theme="light"] .theme-toggle:hover {
  border-color: var(--color-verdigris);
  background-color: rgba(0, 0, 0, 0.04);
}

.theme-icon-sun {
  display: none;
}

.theme-icon-moon {
  display: block;
}

[data-theme="dark"] .theme-icon-sun {
  display: block;
  color: var(--color-chartreuse);
}

[data-theme="dark"] .theme-icon-moon {
  display: none;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  cursor: pointer;
  padding: 10px;
  z-index: 1100;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  position: relative;
  transition: var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition-fast);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

/* Hamburger Expanded State */
.nav-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}
.nav-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}
.nav-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg);
  bottom: 0;
}

@media(max-width: 900px) {
  .nav-toggle {
    display: block;
  }
  
  .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: var(--bg-main);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  }
  
  .primary-nav[data-visible="true"] {
    transform: translateX(0);
  }
  
  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 32px;
  }
  
  .nav-list a {
    font-size: 1.5rem;
  }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 80px;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-text-wrapper {
  max-width: 800px;
}

.hero-tagline {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-chartreuse);
  margin-bottom: 16px;
  line-height: 1.2;
}

@media(min-width: 768px) {
  .hero-tagline {
    font-size: 3.75rem;
  }
}

.hero-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.25;
  margin-bottom: 24px;
  color: #FFFFFF;
}

@media(min-width: 768px) {
  .hero-title {
    font-size: 3.25rem;
  }
}

.hero-subtitle {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 40px;
  line-height: 1.8;
  max-width: 650px;
}

@media(min-width: 768px) {
  .hero-subtitle {
    font-size: 1.25rem;
  }
}

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

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.mouse-icon {
  display: block;
  width: 28px;
  height: 48px;
  border-radius: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  position: relative;
}

.mouse-wheel {
  display: block;
  width: 6px;
  height: 10px;
  background-color: var(--color-chartreuse);
  border-radius: 3px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollMouse 1.5s infinite ease-in-out;
}

@keyframes scrollMouse {
  0% { transform: translate(-50%, 0); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translate(-50%, 15px); opacity: 0; }
}

/* ==========================================================================
   Purpose Section
   ========================================================================== */
.purpose-section {
  overflow: hidden;
}

.features-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 36px;
}

.feature-item {
  display: flex;
  gap: 20px;
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: rgba(168, 207, 69, 0.1);
  color: var(--color-chartreuse);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}

[data-theme="light"] .feature-icon {
  background-color: rgba(105, 102, 57, 0.08);
  color: var(--color-verdigris);
}

.feature-content h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.feature-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.image-stack {
  position: relative;
  display: flex;
  justify-content: center;
}

.stacked-image {
  border-radius: var(--border-radius);
  box-shadow: var(--glass-shadow);
  border: 1px solid var(--border-color);
}

.glass-overlay-card {
  position: absolute;
  bottom: -24px;
  right: -12px;
  max-width: 280px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color-glow);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: var(--glass-shadow);
}

@media(max-width: 768px) {
  .glass-overlay-card {
    position: static;
    margin-top: 20px;
    max-width: 100%;
  }
}

.glass-overlay-card h4 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--color-chartreuse);
}

[data-theme="light"] .glass-overlay-card h4 {
  color: var(--color-verdigris);
}

.glass-overlay-card p {
  font-size: 0.9rem;
  color: var(--text-main);
  line-height: 1.5;
}

/* ==========================================================================
   Glassmorphic Cards
   ========================================================================== */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.glass-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-color-glow);
  box-shadow: var(--card-hover-shadow);
}

.card-image-wrapper {
  overflow: hidden;
  height: 220px;
  border-bottom: 1px solid var(--border-color);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.glass-card:hover .card-image {
  transform: scale(1.05);
}

.card-content {
  padding: 32px;
}

.card-content h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.card-content p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.card-icon {
  margin-bottom: 24px;
  color: var(--color-chartreuse);
}

[data-theme="light"] .card-icon {
  color: var(--color-verdigris);
}

.card-bullet-list {
  list-style: none;
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.card-bullet-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-bullet-list li::before {
  content: '✓';
  color: var(--color-chartreuse);
  font-weight: bold;
}

[data-theme="light"] .card-bullet-list li::before {
  color: var(--color-verdigris);
}

/* ==========================================================================
   Mineral Trading Steps
   ========================================================================== */
.trading-steps {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.step-item {
  display: flex;
  gap: 24px;
}

.step-number {
  flex-shrink: 0;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-chartreuse);
  opacity: 0.7;
  font-family: var(--font-serif);
  line-height: 1;
}

[data-theme="light"] .step-number {
  color: var(--color-verdigris);
}

.step-content h4 {
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.step-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

@media(max-width: 768px) {
  .reverse-mobile {
    display: flex;
    flex-direction: column-reverse;
  }
}

/* ==========================================================================
   Sustainability / Impact Stats
   ========================================================================== */
.stats-grid {
  margin-top: 60px;
}

.stat-card {
  padding: 40px 24px;
}

.stat-number {
  display: block;
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-chartreuse);
  margin-bottom: 8px;
  font-family: var(--font-serif);
}

[data-theme="light"] .stat-number {
  color: var(--color-verdigris);
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-main);
  font-weight: 500;
  letter-spacing: 0.5px;
}

.impact-text-card {
  padding: 32px;
}

.impact-text-card h4 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--color-chartreuse);
}

[data-theme="light"] .impact-text-card h4 {
  color: var(--color-verdigris);
}

.impact-text-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Contact Form & Info
   ========================================================================== */
.contact-info-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-details {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-detail-item {
  display: flex;
  gap: 20px;
  align-items: center;
}

.detail-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background-color: rgba(168, 207, 69, 0.05);
  color: var(--color-chartreuse);
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="light"] .detail-icon {
  background-color: rgba(105, 102, 57, 0.05);
  color: var(--color-verdigris);
}

.detail-content span {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-bottom: 2px;
}

.detail-content a,
.detail-content p {
  font-size: 1.05rem;
  font-weight: 600;
}

.detail-content a:hover {
  color: var(--color-chartreuse);
}

[data-theme="light"] .detail-content a:hover {
  color: var(--color-verdigris);
}

/* Form Styling */
.contact-form-panel {
  display: flex;
  align-items: center;
}

.glass-form {
  width: 100%;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color-glow);
  border-radius: var(--border-radius);
  padding: 40px;
  box-shadow: var(--glass-shadow);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.15);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea,
[data-theme="light"] .form-group select {
  background-color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-chartreuse);
  background-color: rgba(0, 0, 0, 0.25);
  box-shadow: 0 0 0 3px rgba(168, 207, 69, 0.15);
}

[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group textarea:focus,
[data-theme="light"] .form-group select:focus {
  border-color: var(--color-verdigris);
  background-color: rgba(255, 255, 255, 0.85);
  box-shadow: 0 0 0 3px rgba(105, 102, 57, 0.1);
}

/* Custom Dropdown select indicator */
.select-wrapper {
  position: relative;
}

.select-wrapper::after {
  content: '▼';
  font-size: 0.7rem;
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  opacity: 0.6;
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 40px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--bg-alt);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 40px 0;
  font-size: 0.9rem;
}

.site-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.footer-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-tagline {
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--text-muted);
}

@media(min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.bullet {
  opacity: 0.3;
}

/* ==========================================================================
   Aesthetics / Animations
   ========================================================================== */
.animate-fade-in {
  animation: fadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-fade-in-up {
  opacity: 0;
  animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
}

.animate-fade-in-up-delay {
  opacity: 0;
  animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.4s forwards;
}

.animate-fade-in-up-delay-more {
  opacity: 0;
  animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Relational Pillars & Philosophy
   ========================================================================== */
.pillar-card {
  padding: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.pillar-image-wrapper {
  overflow: hidden;
  height: 240px;
  border-bottom: 1px solid var(--border-color);
}

.pillar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.pillar-card:hover .pillar-image {
  transform: scale(1.05);
}

.pillar-content {
  padding: 40px;
  position: relative;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.pillar-number {
  position: absolute;
  top: 24px;
  right: 32px;
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--color-chartreuse);
  opacity: 0.15;
  font-family: var(--font-serif);
  line-height: 1;
}

[data-theme="light"] .pillar-number {
  color: var(--color-verdigris);
}

.pillar-card h3 {
  font-size: 1.45rem;
  margin-top: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.scripture-quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-gold);
  border-left: 3px solid var(--color-chartreuse);
  padding-left: 12px;
  margin: 16px 0;
  line-height: 1.5;
}

[data-theme="light"] .scripture-quote {
  color: var(--color-verdigris);
  border-left-color: var(--color-verdigris);
}

.pillar-meta {
  margin-top: auto;
  padding-top: 20px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-chartreuse);
  font-weight: 600;
}

[data-theme="light"] .pillar-meta {
  color: var(--color-verdigris);
}

/* ==========================================================================
   CHAMPS Grid & Typography
   ========================================================================== */
.champs-header-letter {
  font-size: 4rem;
  font-weight: 900;
  color: var(--color-chartreuse);
  font-family: var(--font-serif);
  line-height: 1;
  margin-bottom: 8px;
  display: block;
}

[data-theme="light"] .champs-header-letter {
  color: var(--color-verdigris);
}

.champ-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  border-top: 4px solid var(--border-color-glow);
}

.champ-card h3 {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.champ-details {
  list-style: none;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.9rem;
}

.champ-details li {
  position: relative;
  padding-left: 20px;
}

.champ-details li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-chartreuse);
  font-weight: bold;
}

[data-theme="light"] .champ-details li::before {
  color: var(--color-verdigris);
}

.champ-details strong {
  color: var(--text-main);
}

/* ==========================================================================
   MineHub Model Section
   ========================================================================== */
.model-intro-card {
  padding: 40px;
  margin-bottom: 48px;
  border-left: 4px solid var(--color-chartreuse);
}

[data-theme="light"] .model-intro-card {
  border-left-color: var(--color-verdigris);
}

.model-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media(min-width: 768px) {
  .model-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 1024px) {
  .model-features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .model-features-grid > :nth-child(4) {
    grid-column: span 1;
  }
}

/* =font adjustments and tweaks for lists */
.card-content ul {
  list-style: none;
  margin-top: 16px;
}

.card-content li {
  margin-bottom: 8px;
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
}

.card-content li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-chartreuse);
}

[data-theme="light"] .card-content li::before {
  color: var(--color-verdigris);
}

/* ==========================================================================
   Case Study & Expansion Layouts
   ========================================================================== */
.expansion-section {
  position: relative;
  background-image: linear-gradient(rgba(17, 20, 14, 0.92), rgba(17, 20, 14, 0.96)), url('/assets/img/expansion_map.svg');
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

[data-theme="light"] .expansion-section {
  background-image: linear-gradient(rgba(247, 249, 245, 0.93), rgba(247, 249, 245, 0.96)), url('/assets/img/expansion_map.svg');
}

.case-study-wrapper {
  margin-bottom: 48px;
}

.case-study-body {
  padding: 40px;
}

.case-study-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 24px;
}

@media(min-width: 768px) {
  .case-study-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case-study-col h4 {
  font-size: 1.15rem;
  color: var(--color-chartreuse);
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

[data-theme="light"] .case-study-col h4 {
  color: var(--color-verdigris);
}

.case-study-col p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.expansion-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 40px;
}

@media(min-width: 768px) {
  .expansion-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width: 1024px) {
  .expansion-timeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

.timeline-card {
  padding: 32px;
  border-left: 3px solid var(--border-color-glow);
  position: relative;
}

.timeline-card:hover {
  border-left-color: var(--color-chartreuse);
}

.timeline-loc {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.timeline-meta {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.9rem;
  color: var(--color-gold);
  margin-top: 12px;
  display: block;
}

[data-theme="light"] .timeline-meta {
  color: var(--color-verdigris);
}