/* ===== MODERN FOUNDATION CSS ===== */
/* Mobile-first, semantic, performance-optimized */

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

:root {
  /* Color System - Scientific & Professional */
  --color-primary: #1a365d;           /* Deep Navy - Trust & Expertise */
  --color-primary-dark: #102a44;      /* Darker primary for hover states */
  --color-secondary: #2b77ad;         /* Professional Blue - Innovation */
  --color-accent: #0ea5e9;            /* Bright Blue - Technology */
  --color-success: #059669;           /* Lab Green - Accuracy */
  --color-warning: #d97706;           /* Analytical Orange - Precision */
  --color-error: #dc2626;             /* Error Red */
  
  /* Neutral Colors */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  
  /* Semantic Colors */
  --color-text-primary: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-600);
  --color-text-tertiary: var(--color-gray-500);
  --color-text-muted: var(--color-gray-500);
  --color-background: var(--color-white);
  --color-background-secondary: var(--color-gray-50);
  --color-border: var(--color-gray-200);
  --color-border-light: var(--color-gray-100);
  
  /* Typography */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Font Sizes - Fluid Typography */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --font-size-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --font-size-3xl: clamp(2rem, 1.7rem + 1.5vw, 3rem);
  --font-size-4xl: clamp(2.5rem, 2rem + 2.5vw, 4rem);
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing System */
  --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;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-base: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Z-index */
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal: 40;
  --z-popover: 50;
  --z-tooltip: 60;
  --z-toast: 70;
}

/* ===== Base Styles ===== */
html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

.lead {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.highlight {
  color: var(--color-accent);
  font-weight: var(--font-weight-semibold);
}

/* ===== Layout Components ===== */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-2), 4vw, var(--space-4));
  min-width: 0; /* Allow shrinking */
  box-sizing: border-box;
}

/* Ensure no horizontal overflow */
* {
  box-sizing: border-box;
  max-width: 100%;
}

html, body {
  overflow-x: hidden;
  width: 100%;
}

.section {
  padding: var(--space-16) 0;
}

.section--gray {
  background-color: var(--color-background-secondary);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section__title {
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Skip Navigation ===== */
.skip-nav {
  position: absolute;
  top: -40px;
  left: var(--space-2);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-2) var(--space-4);
  text-decoration: none;
  border-radius: var(--radius-base);
  font-weight: var(--font-weight-medium);
  z-index: var(--z-tooltip);
  transition: top var(--transition-fast);
}

.skip-nav:focus {
  top: var(--space-2);
}

/* ===== Header ===== */
.header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: var(--z-fixed); /* Ensure header is above content but below modal */
  backdrop-filter: blur(8px);
  width: 100%;
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  width: 100%;
  min-width: 0; /* Allow shrinking */
}

.header__logo {
  flex-shrink: 0;
  min-width: 0;
}

.header__logo img {
  height: 45px; /* Smaller default for mobile */
  width: auto;
  max-width: 180px;
  display: block;
}

/* Larger logo for tablets and desktop */
@media (min-width: 768px) {
  .header__logo img {
    height: 60px;
    max-width: 200px;
  }
}

/* Even larger for large desktop screens */
@media (min-width: 1200px) {
  .header__logo img {
    height: 70px;
    max-width: 220px;
  }
}

/* ===== Navigation ===== */
.nav {
  position: relative;
  flex-shrink: 0;
}

.nav__toggle {
  display: none; /* Hidden by default */
  align-items: center;
  gap: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  z-index: var(--z-fixed);
  min-height: 44px; /* Touch target size */
  min-width: 44px;
  touch-action: manipulation;
}

.nav__toggle-icon {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: background-color 0.3s ease;
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: transform 0.3s ease;
}

.nav__toggle-icon::before {
  top: -6px;
}

.nav__toggle-icon::after {
  top: 6px;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon {
  background-color: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::before {
  transform: rotate(45deg) translate(4px, 4px);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::after {
  transform: rotate(-45deg) translate(4px, -4px);
}

.nav__toggle-text {
  margin-left: 0.5rem;
  font-size: 0.9rem;
  color: var(--color-text-primary);
}

.nav__menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: nowrap;
}

.nav__menu li {
  margin: 0;
  flex-shrink: 0;
}

.nav__link {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-fast);
  display: block;
  white-space: nowrap;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link:focus {
  color: var(--color-text-primary);
}

.nav__link:hover::after,
.nav__link:focus::after {
  width: 100%;
}

/* Show mobile navigation when nav items start to overflow or on mobile */
@media (max-width: 900px) {
  .nav__toggle {
    display: flex;
    position: relative;
    z-index: var(--z-popover); /* Higher z-index for the toggle button */
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-16) var(--space-8);
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-base);
    z-index: var(--z-popover); /* Use popover z-index to appear above all content */
    overflow-y: auto;
  }

  .nav__menu.is-active {
    right: 0;
  }

  .nav__link {
    font-size: var(--font-size-lg);
    width: 100%;
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--color-border-light);
    min-height: 48px; /* Touch target size */
    display: flex;
    align-items: center;
    touch-action: manipulation;
  }
  
  .nav__link:last-child {
    border-bottom: none;
  }
  
  /* Mobile menu overlay */
  .nav__menu.is-active::before {
    content: '';
    position: fixed;
    top: 0;
    left: -280px;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-popover) - 1); /* Overlay behind menu but above all other content */
  }
  
  /* Improved mobile header spacing */
  .header__content {
    padding: var(--space-3) 0;
  }
  
  .header__logo img {
    height: 40px;
    max-width: 160px;
  }
}

/* Desktop Navigation - hide mobile toggle */
@media (min-width: 901px) {
  .nav__toggle {
    display: none;
  }
  
  .nav__menu {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    flex-direction: row;
    padding: 0;
    box-shadow: none;
    overflow: visible;
  }
  
  .nav__link {
    white-space: nowrap;
    font-size: var(--font-size-base);
    padding: var(--space-2) 0;
    border-bottom: none;
    min-height: auto;
    display: block;
    touch-action: auto;
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: var(--transition-fast);
  min-height: 44px; /* Touch target */
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--primary:hover,
.btn--primary:focus {
  background: var(--color-secondary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover,
.btn--secondary:focus {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
}

.btn:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* ===== Hero Section ===== */
.hero {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.hero__content {
  text-align: center;
}

.hero__title {
  margin-bottom: var(--space-6);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  margin-top: var(--space-8);
}

.hero__visual {
  margin-top: var(--space-12);
}

.hero__visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-24) 0;
  }

  .hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
  }

  .hero__content {
    text-align: left;
  }

  .hero__title,
  .hero__subtitle {
    margin-left: 0;
    margin-right: 0;
  }

  .hero__actions {
    flex-direction: row;
    justify-content: flex-start;
  }

  .hero__visual {
    margin-top: 0;
  }
}

/* ===== Hero Features ===== */
.hero__features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border-light);
}

.hero__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.hero__feature:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero__feature-icon {
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}

.hero__feature-text {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

@media (min-width: 768px) {
  .hero__features {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-16);
    padding-top: var(--space-10);
  }
}

@media (max-width: 480px) {
  .hero__feature-text {
    white-space: normal;
  }
}
  
  .hero__feature {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }
  
  .hero__feature-icon {
    font-size: var(--font-size-xl);
  }
  
  .hero__feature-text {
    font-size: var(--font-size-base);
  }
}

/* ===== About Section ===== */
.about__content {
  max-width: 800px;
  margin: 0 auto;
}

.about__features {
  display: grid;
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.feature {
  text-align: center;
}

.feature__icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-4);
}

.feature__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-2);
}

.feature__description {
  color: var(--color-text-secondary);
  margin: 0;
}

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

/* ===== Services Section ===== */
.services__grid {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

/* Legacy service cards */
.service-card:not(.service-card--modern) {
  background: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-base);
  transition: var(--transition-base);
  border: 1px solid var(--color-border);
}

.service-card:not(.service-card--modern):hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.service-card:not(.service-card--modern) .service-card__icon {
  margin-bottom: var(--space-6);
}

.service-card:not(.service-card--modern) .service-card__icon img {
  width: 40px;
  height: 40px;
}

/* Larger service icons for tablets and desktop */
@media (min-width: 768px) {
  .service-card:not(.service-card--modern) .service-card__icon img {
    width: 48px;
    height: 48px;
  }
}

/* Even larger for large desktop screens */
@media (min-width: 1200px) {
  .service-card:not(.service-card--modern) .service-card__icon img {
    width: 56px;
    height: 56px;
  }
}

.service-card:not(.service-card--modern) .service-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.service-card:not(.service-card--modern) .service-card__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.service-card:not(.service-card--modern) .service-card__link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: var(--transition-fast);
}

.service-card:not(.service-card--modern) .service-card__link:hover,
.service-card:not(.service-card--modern) .service-card__link:focus {
  color: var(--color-primary);
  text-decoration: underline;
}

.services__cta {
  text-align: center;
}

@media (min-width: 768px) {
  .services__grid:not(.services__grid--modern) {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services__grid:not(.services__grid--modern) {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===== Modern Services Section ===== */
.services__grid--modern {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-16);
  contain: layout style;
}

.service-card--modern {
  background: var(--color-white);
  border-radius: 20px;
  padding: var(--space-10);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-align: left;
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
}

.service-card--modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #667eea, #764ba2); /* Add default gradient */
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.service-card--modern:hover::before {
  transform: scaleX(1);
}

.service-card--modern:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.service-card--qc::before {
  background: linear-gradient(90deg, #3498db, #2980b9);
}

.service-card--formulation::before {
  background: linear-gradient(90deg, #2ecc71, #27ae60);
}

.service-card--failure::before {
  background: linear-gradient(90deg, #e74c3c, #c0392b);
}

.service-card--unknown::before {
  background: linear-gradient(90deg, #f39c12, #e67e22);
}

.service-card--modern .service-card__icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-8);
  transition: all 0.3s ease;
  background: var(--color-primary); /* or any default color */
}

.service-card--qc .service-card__icon {
  background: linear-gradient(135deg, #3498db, #2980b9);
}

.service-card--formulation .service-card__icon {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.service-card--failure .service-card__icon {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.service-card--unknown .service-card__icon {
  background: linear-gradient(135deg, #f39c12, #e67e22);
}

.service-card--modern .service-card__icon img {
  filter: brightness(0) invert(1);
  width: 40px;
  height: 40px;
}

.service-card--modern .service-card__title {
  font-size: 1.8rem;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.service-card__problem {
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  padding-left: var(--space-5);
  border-left: 3px solid var(--color-border);
  line-height: 1.6;
}

.service-card__benefits {
  list-style: none;
  margin-bottom: var(--space-6);
}

.service-card__benefits li {
  padding: var(--space-2) 0;
  padding-left: var(--space-8);
  position: relative;
  color: var(--color-text-primary);
}

.service-card__benefits li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #27ae60;
  font-weight: bold;
  font-size: 1.2rem;
}

.service-card__use-cases {
  background: var(--color-background-secondary);
  padding: var(--space-5);
  border-radius: var(--radius-base);
  margin-bottom: var(--space-6);
}

.service-card__use-cases h4 {
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-base);
}

.service-card__use-cases p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

.service-card__cta {
  display: inline-flex;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: var(--color-white);
  padding: var(--space-3) var(--space-8);
  border-radius: 25px;
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: var(--font-weight-medium);
  margin-top: auto;
  align-self: flex-start;
}

.service-card__cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
  color: var(--color-white);
}

/* Request page service card variants */
.service-card--request .service-card__accent { background: var(--color-accent); }
.service-card--consultation .service-card__accent { background: var(--color-secondary); }
.service-card--contact .service-card__accent { background: var(--color-success); }

.service-card--request .service-card__icon {
  background: linear-gradient(135deg, #1a365d, #2b77ad);
  color: white;
}

.service-card--consultation .service-card__icon {
  background: linear-gradient(135deg, #059669, #10b981);
  color: white;
}

.service-card--contact .service-card__icon {
  background: linear-gradient(135deg, #d97706, #f59e0b);
  color: white;
}

.service-card--request::before,
.service-card--consultation::before,
.service-card--contact::before {
  background: linear-gradient(90deg, var(--color-accent), var(--color-secondary));
}

/* Override min-width for three column layout to prevent cards being too wide */
.services__grid--three-column.services__grid--modern {
  grid-template-columns: repeat(3, 1fr) !important;
  gap: var(--space-6) !important;
}

.services__grid--three-column .service-card--modern {
  min-width: 0;
  max-width: none;
}

/* QC Testing service card variants */
.service-card--ai-content::before {
  background: linear-gradient(90deg, #3498db, #2980b9);
}

.service-card--ai-content .service-card__icon {
  background: linear-gradient(135deg, #3498db, #2980b9);
}

.service-card--ph-properties::before {
  background: linear-gradient(90deg, #2ecc71, #27ae60);
}

.service-card--ph-properties .service-card__icon {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.service-card--formulation-consistency::before {
  background: linear-gradient(90deg, #f39c12, #e67e22);
}

.service-card--formulation-consistency .service-card__icon {
  background: linear-gradient(135deg, #f39c12, #e67e22);
}

/* Capability card variants with unique color schemes */
.service-card--hplc::before {
  background: linear-gradient(90deg, #9b59b6, #8e44ad);
}

.service-card--hplc .service-card__icon {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.service-card--nmr::before {
  background: linear-gradient(90deg, #1abc9c, #16a085);
}

.service-card--nmr .service-card__icon {
  background: linear-gradient(135deg, #1abc9c, #16a085);
}

.service-card--ftir::before {
  background: linear-gradient(90deg, #e67e22, #d35400);
}

.service-card--ftir .service-card__icon {
  background: linear-gradient(135deg, #e67e22, #d35400);
}

.service-card--physical::before {
  background: linear-gradient(90deg, #34495e, #2c3e50);
}

.service-card--physical .service-card__icon {
  background: linear-gradient(135deg, #34495e, #2c3e50);
}

.service-card--gc::before {
  background: linear-gradient(90deg, #f1c40f, #f39c12);
}

.service-card--gc .service-card__icon {
  background: linear-gradient(135deg, #f1c40f, #f39c12);
}

.service-card--environmental::before {
  background: linear-gradient(90deg, #27ae60, #229954);
}

.service-card--environmental .service-card__icon {
  background: linear-gradient(135deg, #27ae60, #229954);
}

/* ===== Capabilities Section ===== */
.capabilities-section {
  background: var(--color-white);
  border-radius: 20px;
  padding: var(--space-12);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  margin: var(--space-16) 0 var(--space-12) 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  contain: layout style;
}

.capabilities-section__title {
  text-align: center;
  font-size: 2.5rem;
  color: var(--color-text-primary);
  margin-bottom: var(--space-10);
}

.techniques-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
}

.technique-card {
  background: var(--color-background-secondary);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.technique-card:hover {
  background: var(--color-gray-200);
  transform: translateY(-5px);
}

.technique-card__icon {
  margin-bottom: var(--space-4);
  opacity: 0.8;
}

.technique-card h4 {
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-lg);
}

.technique-card p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.5;
}

/* ===============================================
   NMR Techniques Section - Modern Card Layout
   =============================================== */

.techniques__grid--modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.technique-card {
    background: var(--white);
    border-radius: 16px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.technique-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.technique-card--featured {
    border: 2px solid var(--primary);
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
}

.technique-card__header {
    padding: 1.5rem 1.5rem 1rem;
    text-align: center;
}

.technique-card__icon {
    margin-bottom: 1rem;
}

.technique-card__icon img {
    border-radius: 50%;
    background: var(--gray-50);
    padding: 0.5rem;
}

.technique-card__title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.technique-card__subtitle {
    color: var(--gray-600);
    font-size: 0.9rem;
    margin: 0;
}

.technique-card__content {
    padding: 0 1.5rem 1.5rem;
}

.technique-list--modern {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.technique-item {
    display: flex;
    flex-direction: column;
    padding: 0.75rem;
    background: var(--gray-50);
    border-radius: 8px;
    border-left: 3px solid var(--primary);
    transition: all 0.2s ease;
}

.technique-item:hover {
    background: var(--gray-100);
    transform: translateX(4px);
}

.technique-name {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.technique-description {
    color: var(--gray-600);
    font-size: 0.85rem;
    line-height: 1.4;
}

.technique-card__badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.technique-card__stats {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.technique-card__highlight {
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
    text-align: center;
}

.highlight-text {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

/* Techniques Overview */
.techniques__overview {
    margin-top: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-600) 100%);
    border-radius: 16px;
    color: white;
}

.capabilities-summary__title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: white;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2rem;
    text-align: center;
}

.capability-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.capability-stat__value {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.25rem;
}

.capability-stat__label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .techniques__grid--modern {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .technique-card__header {
        padding: 1.25rem 1.25rem 0.75rem;
    }
    
    .technique-card__content {
        padding: 0 1.25rem 1.25rem;
    }
    
    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .techniques__overview {
        margin-top: 2rem;
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* ===== Portfolio Section ===== */
.portfolio__filters {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.filter-btn {
  background: transparent;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--space-3) var(--space-6);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition-base);
}

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

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
}

.portfolio-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-base);
  transition: var(--transition-base);
}

.portfolio-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.portfolio-item__image {
  aspect-ratio: 4/3;
  overflow: hidden;
}

.portfolio-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-base);
}

.portfolio-item:hover .portfolio-item__image img {
  transform: scale(1.05);
}

.portfolio-item__content {
  padding: var(--space-6);
}

.portfolio-item__title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.portfolio-item__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

.portfolio-item__link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: var(--transition-fast);
}

.portfolio-item__link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .portfolio__grid {
    grid-template-columns: 1fr;
  }
  
  .filter-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
  }
}

/* ===== Footer ===== */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__content {
  display: grid;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand {
  text-align: center;
}

.footer__brand img {
  filter: brightness(0) invert(1);
  margin-bottom: var(--space-4);
  height: 60px;
  width: auto;
}

.footer__links {
  display: grid;
  gap: var(--space-8);
}

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

.footer__links-title {
  color: var(--color-white);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
}

.footer__links-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer__links-list li {
  margin-bottom: var(--space-2);
}

.footer__links-link {
  color: var(--color-gray-400);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer__links-link:hover,
.footer__links-link:focus {
  color: var(--color-white);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-gray-700);
}

.footer__copyright {
  color: var(--color-gray-400);
  font-size: var(--font-size-sm);
  margin: 0;
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-gray-700);
  color: var(--color-gray-300);
  border-radius: 50%;
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer__social-link:hover,
.footer__social-link:focus {
  background: var(--color-accent);
  color: var(--color-white);
}

@media (min-width: 768px) {
  .footer__content {
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
  }
  
  .footer__brand {
    text-align: left;
  }
  
  .footer__links {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer__links-group {
    text-align: left;
  }
  
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ===== Team Section ===== */
.team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.team-member {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-base);
  transition: var(--transition-base);
  text-align: center;
}

.team-member:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.team-member__image {
  margin: 0 auto var(--space-6) auto;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  width: 200px;
  height: 200px;
}

.team-member__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-base);
}

.team-member:hover .team-member__image img {
  transform: scale(1.05);
}

.team-member__name {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.team-member__title {
  font-size: var(--font-size-base);
  color: var(--color-accent);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-4);
}

.team-member__bio {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.team-member__social {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-background-secondary);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: var(--transition-base);
}

.social-link:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ===== Contact Section ===== */
.contact__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: var(--space-8);
  align-items: start;
  width: 100%;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  min-width: 0; /* Allow shrinking */
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  min-width: 0;
}

.contact-item__icon {
  font-size: var(--font-size-2xl);
  min-width: 48px;
  text-align: center;
  flex-shrink: 0;
}

.contact-item__content {
  flex: 1;
  min-width: 0;
}

.contact-item__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.contact-item__link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: var(--transition-fast);
  word-break: break-word;
}

.contact-item__link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.contact-item__text {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.contact-form {
  background: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-base);
  width: 100%;
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-4);
  min-width: 0;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  padding: var(--space-3);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  transition: var(--transition-fast);
  background: var(--color-white);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  min-width: 0;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

/* Mobile form improvements */
@media (max-width: 767px) {
  .form-input,
  .form-textarea,
  .form-select {
    padding: var(--space-4);
    font-size: 16px; /* Prevents zoom on iOS */
    -webkit-appearance: none;
    appearance: none;
    border-radius: var(--radius-base);
    max-width: 100%;
  }
  
  .form-textarea {
    min-height: 100px;
  }
  
  .contact-form__submit {
    width: 100%;
    justify-content: center;
    padding: var(--space-4);
    font-size: var(--font-size-base);
    max-width: 100%;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
}

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

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

/* Mobile responsive styles for contact section */
@media (max-width: 767px) {
  .contact__content {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .contact-form {
    padding: var(--space-6);
    margin: 0;
    width: 100%;
    max-width: 100%;
  }
  
  .form-group {
    margin-bottom: var(--space-4);
    width: 100%;
    max-width: 100%;
  }
  
  .contact-item {
    align-items: center;
    text-align: center;
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .contact-item__icon {
    min-width: auto;
  }
  
  .contact-item__content {
    text-align: center;
  }
  
  .contact__info {
    gap: var(--space-4);
  }
}

/* Narrow viewport adjustments */
@media (max-width: 600px) {
  .contact__content {
    gap: var(--space-4);
  }
  
  .contact-form {
    padding: var(--space-4);
    width: 100%;
    max-width: 100%;
  }
}

/* Instrument Cards Styling */
.instruments__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.instrument-card {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

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

.instrument-card__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-6);
  background: var(--color-gray-50);
}

.instrument-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-base);
}

.instrument-card:hover .instrument-card__image img {
  transform: scale(1.05);
}

.instrument-card__content {
  padding: 0;
}

.instrument-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.instrument-card__description {
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-6);
  font-size: var(--font-size-base);
}

.instrument-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: var(--transition-base);
}

.instrument-card__link:hover {
  color: var(--color-primary-dark);
  gap: var(--space-3);
}

.instrument-card__link::after {
  content: '→';
  transition: var(--transition-base);
}

/* Capability Cards Styling */
.capabilities__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.capability-card {
  background: var(--color-background);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
  border: 1px solid var(--color-border);
  position: relative;
}

.capability-card--featured {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2563eb 100%);
  color: white;
  transform: scale(1.02);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.capability-card--featured .capability-card__title,
.capability-card--featured .capability-card__description {
  color: white;
}

.capability-card--featured .capability-card__features li {
  color: rgba(255, 255, 255, 0.9);
}

.capability-card__stats {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

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

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat-label {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.capability-card__cta {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.capability-card__highlight {
  position: absolute;
  top: 1rem;
  right: 1rem;
}

.highlight-badge {
  background: var(--color-accent);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
}

/* Enhanced Application Cards */
.applications__grid--modern {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.application-card {
  background: var(--color-white);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.application-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.application-card--featured {
  background: linear-gradient(135deg, var(--color-white) 0%, #f8fafc 100%);
  border: 2px solid var(--color-primary);
}

.application-card__header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.application-card__icon {
  font-size: 2rem;
  margin-right: 1rem;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  border-radius: 0.75rem;
}

.application-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0;
}

.application-card__examples {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--color-background-alt);
  border-radius: 0.5rem;
}

.application-card__examples h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 0.5rem 0;
}

.application-card__examples ul {
  margin: 0;
  padding-left: 1rem;
  list-style: none;
}

.application-card__examples li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.25rem;
}

.application-card__examples li::before {
  content: '•';
  color: var(--color-primary);
  position: absolute;
  left: 0;
}

.application-card__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
}

.badge {
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--primary {
  background: var(--color-primary);
  color: white;
}

.application-card__stats {
  margin-top: 1.5rem;
  text-align: center;
}

.application-card__highlight {
  margin-top: 1.5rem;
  text-align: center;
}

.highlight-text {
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Enhanced Specification Cards */
.specifications__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.spec-card {
  background: var(--color-white);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.spec-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.spec-card--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2563eb 100%);
  color: white;
}

.spec-card--primary .spec-card__title {
  color: white;
}

.spec-card__header {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.spec-card__icon {
  margin-right: 1rem;
  opacity: 0.9;
}

.spec-card__title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0;
}

.spec-list--enhanced {
  list-style: none;
  padding: 0;
  margin: 0;
}

.spec-list--enhanced li {
  display: flex;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.spec-card--primary .spec-list--enhanced li {
  border-bottom-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.9);
}

.spec-list--enhanced li:last-child {
  border-bottom: none;
}

.spec-icon {
  margin-right: 0.75rem;
  font-size: 1.2rem;
}

.spec-card__stats {
  display: flex;
  justify-content: space-around;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* Specifications Highlight Section */
.specifications__highlight {
  margin-top: 4rem;
}

.highlight-card {
  background: var(--color-white);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: center;
}

.highlight-card__title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 0 1.5rem 0;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.highlight-item {
  display: flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.highlight-icon {
  margin-right: 0.5rem;
  font-size: 1rem;
}

.highlight-card__visual img {
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

/* Responsive Design for Enhanced Components */
@media (max-width: 768px) {
  .applications__grid--modern {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .specifications__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .highlight-card {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .highlight-grid {
    grid-template-columns: 1fr;
  }
  
  .application-card__header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .application-card__icon {
    margin-right: 0;
    margin-bottom: 0.5rem;
  }
}

/* ===== BREADCRUMB NAVIGATION ===== */
.breadcrumb {
  margin-bottom: var(--space-6);
}

.breadcrumb__list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.breadcrumb__list li {
  display: flex;
  align-items: center;
}

.breadcrumb__list li:not(:last-child)::after {
  content: "›";
  margin-left: var(--space-2);
  color: var(--color-text-tertiary);
  font-weight: var(--font-weight-medium);
}

.breadcrumb__list a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb__list a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.breadcrumb__list [aria-current="page"] {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* ===== ANALYSIS REQUEST HERO VARIANT ===== */
.hero--analysis-request {
  padding: var(--space-16) 0;
  min-height: auto;
}

.hero--analysis-request .container {
  display: block;
}

.hero--analysis-request .hero__content {
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
}

.hero--analysis-request .hero__title {
  margin: 0 auto var(--space-6);
}

.hero--analysis-request .hero__subtitle {
  margin: 0 auto var(--space-8);
}

.hero--analysis-request .hero__actions {
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .hero--analysis-request {
    display: block;
    align-items: initial;
    min-height: auto;
  }
  
  .hero--analysis-request .container {
    display: block;
    grid-template-columns: none;
    gap: 0;
    align-items: initial;
  }
  
  .hero--analysis-request .hero__content {
    text-align: center;
    margin-bottom: 0;
  }
  
  .hero--analysis-request .hero__actions {
    flex-direction: column;
    align-items: center;
  }
}

/* ===== PROCESS SECTION STYLES ===== */
.process {
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-gray-50) 100%);
  position: relative;
  overflow: hidden;
}

.process.section--gray {
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-gray-100) 100%);
}

.process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(42, 119, 173, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(14, 165, 233, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.process__header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.process__steps {
  display: grid;
  grid-template-columns: 1fr; /* Default single column */
  gap: var(--space-12);
  margin-bottom: var(--space-16);
  position: relative;
  align-items: start;
}

/* Enhanced process steps always use single column for content-rich layout */
.process__steps--enhanced {
  grid-template-columns: 1fr !important;
  gap: var(--space-12) !important;
}

/* Simple process steps can use grid layout */
.process__steps--simple {
  grid-template-columns: 1fr; /* Mobile first */
}

/* Enhanced Process Step - with visual/icon elements (index.html, formulation-development.html) */
.process__step[data-step] {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-8);
  align-items: start;
  background: var(--color-white);
  padding: var(--space-10);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

/* Simple Process Step - text-only layout (other pages) */
.process__step:not([data-step]) {
  background: var(--color-white);
  padding: var(--space-10);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.process__step::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.process__step:hover::before {
  transform: scaleX(1);
}

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

/* Visual elements for enhanced process steps */
.process__step-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  min-width: 120px;
}

.process__step-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}

.process__step:hover .process__step-icon {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* Process step numbers - unified styling for both layouts */
.process__step-number {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  background: var(--color-gray-100);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--color-border);
  margin: 0 auto var(--space-6) auto;
  transition: all var(--transition-base);
}

/* For enhanced layout, position number differently */
.process__step[data-step] .process__step-number {
  width: 40px;
  height: 40px;
  margin: 0;
}

/* For simple layout, center the number */
.process__step:not([data-step]) .process__step-number {
  margin-bottom: var(--space-6);
}

.process__step-content {
  min-width: 0; /* Allows text to wrap properly */
}

.process__step-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-tight);
}

.process__step-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
}

.process__step-features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-3);
}

.process__step-features li {
  position: relative;
  padding-left: var(--space-8);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.process__step-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
}

/* Process Timeline */
.process__timeline {
  position: relative;
  text-align: center;
  margin-top: var(--space-12);
}

.process__timeline-bar {
  width: 100%;
  height: 8px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.process__timeline-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  animation: progressFill 3s ease-in-out infinite;
}

@keyframes progressFill {
  0% { transform: scaleX(0); transform-origin: left; }
  50% { transform: scaleX(1); transform-origin: left; }
  51% { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

.process__timeline-label {
  display: inline-block;
  background: var(--color-white);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-primary);
}

.process__timeline-text {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-size: var(--font-size-lg);
}

/* Responsive Design */
@media (min-width: 768px) {
  /* Grid layout for simple process steps on tablets and up */
  .process__steps--simple {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
  }
  
  /* Enhanced steps remain single column for readability */
  .process__steps--enhanced {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
}

@media (min-width: 1200px) {
  /* Grid layout for simple process steps on large screens */
  .process__steps--simple {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
  
  /* Enhanced steps remain single column with more spacing */
  .process__steps--enhanced {
    grid-template-columns: 1fr;
    gap: var(--space-16);
  }
}

@media (max-width: 767px) {
  /* Enhanced layout responsive adjustments */
  .process__step[data-step] {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-6);
    padding: var(--space-8);
  }
  
  .process__step-visual {
    justify-self: center;
    flex-direction: row;
    min-width: auto;
  }
  
  .process__step-icon {
    width: 60px;
    height: 60px;
  }
  
  .process__step[data-step] .process__step-number {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-base);
  }
  
  /* Simple layout responsive adjustments */
  .process__step:not([data-step]) {
    padding: var(--space-6);
  }
  
  .process__step:not([data-step]) .process__step-number {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-base);
  }
  
  .process__step-title {
    font-size: var(--font-size-lg);
  }
  
  .process__step-features {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    text-align: left;
  }
  
  .process__steps {
    gap: var(--space-8);
  }
}

@media (max-width: 480px) {
  .process__step-features {
    text-align: left;
  }
  
  .process__timeline-text {
    font-size: var(--font-size-base);
  }
  
  .process__step-title {
    font-size: var(--font-size-lg);
  }
}

/* Enhanced hover effects for desktop */
@media (min-width: 769px) {
  .process__step {
    transition: all var(--transition-base);
  }
  
  .process__step:hover .process__step-title {
    color: var(--color-primary);
  }
  
  
  
  .process__step:hover .process__step-number {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: scale(1.1);
  }
  
  /* Special hover effects for simple layout */
  .process__step:not([data-step]):hover .process__step-number {
    box-shadow: var(--shadow-lg);
  }
}

/* Responsive adjustments for capabilities section */
@media (max-width: 1024px) {
  .services__grid--three-column.services__grid--modern {
    grid-template-columns: repeat(2, 1fr) !important;
  }

}

@media (max-width: 768px) {
  .services__grid--three-column.services__grid--modern {
    grid-template-columns: 1fr !important;
  }
}

/* ===== QC Testing Methods & Compliance Color Variants ===== */
.service-card--method-development {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.service-card--regulatory-methods {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.service-card--international-standards {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.service-card--client-protocols {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.service-card--multi-standard {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.service-card--glp-operations {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.service-card--regulatory-expertise {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.service-card--audit-documentation {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Ensure all new variants have proper text color and icon styling */
.service-card--method-development,
.service-card--regulatory-methods,
.service-card--international-standards,
.service-card--client-protocols,
.service-card--multi-standard,
.service-card--glp-operations,
.service-card--regulatory-expertise,
.service-card--audit-documentation {
    color: var(--white);
}

.service-card--method-development .service-card__icon,
.service-card--regulatory-methods .service-card__icon,
.service-card--international-standards .service-card__icon,
.service-card--client-protocols .service-card__icon,
.service-card--multi-standard .service-card__icon,
.service-card--glp-operations .service-card__icon,
.service-card--regulatory-expertise .service-card__icon,
.service-card--audit-documentation .service-card__icon {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: var(--white);
}

/* Analytical Instruments Color Variants */
.service-card--hplc-analysis {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.service-card--nmr-spectroscopy {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.service-card--ftir-spectroscopy {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* Ensure all analytical instrument variants have proper styling */
.service-card--hplc-analysis,
.service-card--nmr-spectroscopy,
.service-card--ftir-spectroscopy {
    color: var(--white);
}

.service-card--hplc-analysis .service-card__icon,
.service-card--nmr-spectroscopy .service-card__icon,
.service-card--ftir-spectroscopy .service-card__icon {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 12px;
}

/* ===== CIPAC METHODS COLOR VARIANTS ===== */
.service-card--cipac-ph .service-card__accent {
  background: linear-gradient(135deg, #3498db, #2980b9);
}

.service-card--cipac-ph .service-card__icon {
  background: linear-gradient(135deg, #3498db, #2980b9);
}

.service-card--cipac-ph .service-card__cta {
  background: linear-gradient(135deg, #3498db, #2980b9);
}

.service-card--cipac-ph .service-card__cta:hover {
  background: linear-gradient(135deg, #2980b9, #1c598a);
}

.service-card--cipac-density .service-card__accent {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.service-card--cipac-density .service-card__icon {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.service-card--cipac-density .service-card__cta {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.service-card--cipac-density .service-card__cta:hover {
  background: linear-gradient(135deg, #c0392b, #a93226);
}

.service-card--cipac-ai .service-card__accent {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.service-card--cipac-ai .service-card__icon {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.service-card--cipac-ai .service-card__cta {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
}

.service-card--cipac-ai .service-card__cta:hover {
  background: linear-gradient(135deg, #27ae60, #229954);
}

.service-card--cipac-dilution .service-card__accent {
  background: linear-gradient(135deg, #1abc9c, #16a085);
}

.service-card--cipac-dilution .service-card__icon {
  background: linear-gradient(135deg, #1abc9c, #16a085);
}

.service-card--cipac-dilution .service-card__cta {
  background: linear-gradient(135deg, #1abc9c, #16a085);
}

.service-card--cipac-dilution .service-card__cta:hover {
  background: linear-gradient(135deg, #16a085, #138d75);
}

.service-card--cipac-particle .service-card__accent {
  background: linear-gradient(135deg, #f39c12, #e67e22);
}

.service-card--cipac-particle .service-card__icon {
  background: linear-gradient(135deg, #f39c12, #e67e22);
}

.service-card--cipac-particle .service-card__cta {
  background: linear-gradient(135deg, #f39c12, #e67e22);
}

.service-card--cipac-particle .service-card__cta:hover {
  background: linear-gradient(135deg, #e67e22, #d35400);
}

.service-card--cipac-custom .service-card__accent {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.service-card--cipac-custom .service-card__icon {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.service-card--cipac-custom .service-card__cta {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.service-card--cipac-custom .service-card__cta:hover {
  background: linear-gradient(135deg, #8e44ad, #7d3c98);
}

/* ===== METHODS INTRO STYLING ===== */
.methods__intro {
  margin-bottom: var(--space-12);
  text-align: center;
}

.methods__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}