:root {
  /* Brand Colors - PRIMARY */
  --color-primary:       #2563eb;   /* Blue-600 */
  --color-primary-dark:  #1d4ed8;   /* Blue-700 */
  --color-primary-light: #3b82f6;   /* Blue-500 */
  
  /* Accent Colors */
  --color-accent:        #10b981;   /* Emerald-500 */
  --color-accent-dark:   #059669;   /* Emerald-600 */
  
  /* Neutral Colors */
  --color-bg:            #f8fafc;   /* Slate-50 */
  --color-surface:       #ffffff;   /* White */
  --color-border:        #e2e8f0;   /* Slate-200 */
  --color-text:          #1e293b;   /* Slate-800 */
  --color-text-secondary:#64748b;   /* Slate-500 */
  --color-text-muted:    #94a3b8;   /* Slate-400 */
  --color-footer-bg:     #0f172a;   /* Slate-900 */
  --color-footer-text:   #94a3b8;   /* Slate-400 */
  
  /* Typography */
  --font-family-heading: Barlow Condensed;
  --font-family-body:    Inter;
  
  /* Layout & Spacing */
  --max-width:           1200px;
  --radius-lg:           12px;
  --radius-md:           8px;
  --radius-sm:           4px;
  --spacing-2xs:         4px;
  --spacing-xs:          8px;
  --spacing-sm:          12px;
  --spacing-md:          16px;
  --spacing-lg:          24px;
  --spacing-xl:          32px;
  --spacing-2xl:         48px;
  --transition-fast:     150ms;
  --transition-normal:   300ms;
  --shadow-sm:           0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md:           0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg:           0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Base Reset & Utilities */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family-body), system-ui, sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading), system-ui, sans-serif;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
  margin-bottom: var(--spacing-md);
}

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

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Layout Components */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) 0;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo-text:hover {
  text-decoration: underline;
}

.acronym {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
}

.nav-list {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-link {
  font-weight: 500;
  color: var(--color-text);
  padding: var(--spacing-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: var(--spacing-2xs);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.hamburger {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Hamburger Animation */
.nav-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  #nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    height: 100vh;
    width: 250px;
    background-color: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding-top: 6rem;
    gap: 0;
    transition: right var(--transition-normal);
    z-index: 999;
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
  }
  
  #nav-menu.active {
    right: 0;
  }
  
  .nav-list {
    flex-direction: column;
    width: 100%;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
  }
  
  .nav-link:last-child {
    border-bottom: none;
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--color-bg) 0%, #f0f9ff 100%);
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  text-align: center;
}

.hero h1 {
  font-size: 2.75rem;
  margin-bottom: var(--spacing-lg);
  background: linear-gradient(to right, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subheadline {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  text-decoration: none;
  font-size: 1rem;
}

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

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

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

/* Features Section */
.features {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-surface);
}

.features h2 {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.feature-card p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* About Section */
.about-content {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.about-text h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.about-text p {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
  line-height: 1.8;
}

.about-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  object-fit: cover;
}

/* Values Section */
.values-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-surface);
}

.values-section h2 {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-primary);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.value-card {
  text-align: center;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
  transition: transform var(--transition-normal);
}

.value-card:hover {
  transform: translateY(-5px);
}

.value-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
}

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

.value-card p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Services Section */
.services-list {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg);
}

.services-list h2 {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  font-size: 2.75rem;
  text-align: center;
  padding: var(--spacing-xl) 0;
  background-color: var(--color-bg);
  color: var(--color-primary);
}

.service-card h3 {
  flex-grow: 1;
  margin: 0 var(--spacing-lg) var(--spacing-sm);
  color: var(--color-text);
}

.service-card p {
  flex-grow: 2;
  margin: 0 var(--spacing-lg) var(--spacing-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.service-features {
  margin: 0 var(--spacing-lg) var(--spacing-sm);
  padding-left: 1.25rem;
}

.service-features li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
  position: relative;
}

.service-features li::before {
  content: "→";
  position: absolute;
  left: -1rem;
  color: var(--color-accent);
}

.service-price {
  margin: 0 var(--spacing-lg) var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-accent);
  color: white;
  font-weight: 600;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.service-card .btn-secondary {
  margin: var(--spacing-sm) var(--spacing-lg) var(--spacing-xl);
  align-self: flex-start;
}

/* Process Section */
.process-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-surface);
}

.process-section h2 {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-primary);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.process-step {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.process-step:hover {
  transform: translateY(-5px);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

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

.process-step p {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: white;
  text-align: center;
}

.cta-section h2 {
  margin-bottom: var(--spacing-lg);
}

.cta-section p {
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.cta-section .btn-primary:hover {
  background-color: var(--color-surface);
}

/* Testimonials Section */
.testimonials {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg);
}

.testimonials h2 {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-primary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.testimonial-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent);
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  line-height: 1.8;
  position: relative;
}

.testimonial-text::before {
  content: '"';
  font-size: 3rem;
  opacity: 0.2;
  position: absolute;
  top: -1rem;
  left: -0.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
}

.testimonial-author cite {
  font-weight: 600;
  color: var(--color-text);
}

.author-role {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-surface);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.contact-info h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.method-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  min-width: 24px;
}

.method-content h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.method-content p,
.method-content address {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.method-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
  font-style: italic;
}

.contact-form-wrapper h2 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xs);
}

.form-group label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-2xs);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: var(--spacing-sm);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-muted);
}

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

.form-note {
  min-height: 1.5rem;
  margin-top: var(--spacing-xs);
  font-size: 0.875rem;
}

/* Products Section */
.products-list,
.product-categories {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg);
}

.products-list h2,
.product-categories h2 {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-primary);
}

.category-tabs {
  margin-bottom: var(--spacing-xl);
}

.category-tabs ul {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.category-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.category-tab:hover:not(.active) {
  background-color: var(--color-bg);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.category-tab.active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.category-panel {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.category-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.product-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.product-image {
  height: 200px;
  overflow: hidden;
  background-color: var(--color-bg);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

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

.product-info {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  padding: var(--spacing-lg);
}

.product-info h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
  flex-grow: 1;
}

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  flex-grow: 2;
  line-height: 1.6;
}

.product-meta {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.product-price {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.25rem;
  background-color: rgba(37, 99, 235, 0.1);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
}

.product-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.tag {
  background-color: var(--color-bg);
  color: var(--color-text);
  padding: var(--spacing-2xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
}

/* Footer */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
}

.footer-brand .footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.footer-brand .footer-tagline {
  font-size: 0.875rem;
  color: var(--color-footer-text);
}

.footer-nav h3,
.footer-contact h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-surface);
}

.footer-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-nav a {
  color: var(--color-footer-text);
  transition: color var(--transition-fast);
}

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

.footer-contact p {
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

.footer-bottom {
  text-align: center;
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.875rem;
  color: var(--color-footer-text);
}

.footer-credits a {
  color: var(--color-footer-text);
  text-decoration: underline;
}

.footer-credits a:hover {
  opacity: 0.8;
}

/* Utility Classes */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

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

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

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

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

.rounded-lg {
  border-radius: var(--radius-lg);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

/* Animations */
@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.7; }
  100% { opacity: 1; }
}

.pulse {
  animation: pulse 2s infinite;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
  
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
}

@media (max-width: 768px) {
  :root {
    --spacing-2xl: 32px;
    --spacing-xl: 24px;
    --spacing-lg: 20px;
    --spacing-md: 16px;
    --spacing-sm: 12px;
    --spacing-xs: 8px;
    --spacing-2xs: 4px;
  }
  
  .features-grid,
  .services-grid,
  .values-grid,
  .process-steps,
  .testimonials-grid,
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .logo {
    justify-content: center;
  }
  
  .nav-list {
    gap: var(--spacing-md);
  }
  
  .nav-link {
    padding: var(--spacing-xs) 0;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }
  
  .btn {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
  }
  
  .hero {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
  }
  
  .hero h1 {
    font-size: 1.75rem;
  }
  
  .hero-subheadline {
    font-size: 1.125rem;
  }
  
  .step-number {
    width: 40px;
    height: 40px;
    font-size: 1.125rem;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f172a;
    --color-surface: #1e293b;
    --color-border: #334155;
    --color-text: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    --color-footer-bg: #000000;
    --color-footer-text: #94a3b8;
  }
  
  .site-header {
    background-color: var(--color-surface);
    border-color: var(--color-border);
  }
  
  .hero {
    background: linear-gradient(135deg, var(--color-bg) 0%, #1e293b 100%);
  }
  
  .feature-card,
  .value-card,
  .process-step,
  .testimonial-card,
  .product-card,
  .service-card {
    background-color: var(--color-surface);
    border-color: var(--color-border);
  }
  
  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }
}

/* Print Styles */
@media print {
  .site-header,
  .nav-toggle,
  .btn,
  .cta-section {
    display: none !important;
  }
  
  body {
    background-color: white !important;
    color: black !important;
  }
  
  a {
    color: black !important;
    text-decoration: underline;
  }
}

/* Chemistry Bros proposal refinements */
.brand-logo { width: 168px; height: 56px; object-fit: cover; object-position: center 60%; border-radius: 8px; }
.hero { background: radial-gradient(circle at 80% 20%, #00b8e6 0%, transparent 25%), linear-gradient(135deg, #041a2f 0%, #063a69 60%, #087ca7 100%); padding: 5.5rem 0; color: #fff; text-align: left; }
.hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 3rem; }
.hero-copy { max-width: 720px; }
.eyebrow { color: #43d6f7; font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; margin-bottom: .8rem; }
.hero h1 { font-size: clamp(3.2rem, 6vw, 5.4rem); line-height: .95; color: #fff; background: none; -webkit-text-fill-color: #fff; }
.hero-subheadline { color: #d9eff7; margin-left: 0; }
.hero-actions { display: flex; gap: .75rem; flex-wrap: wrap; }
.hero .btn-primary { background: #19c7ec; color: #031a31; }
.hero .btn-outline { border-color: #9feeff; color: #fff; }
.hero .btn-outline:hover { background: #fff; color: #063a69; }
.hero-logo { width: min(100%, 460px); justify-self: end; border-radius: 20px; filter: drop-shadow(0 24px 30px rgba(0,0,0,.28)); }
.trust-bar { background: #061d32; color: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding-top: 1.2rem; padding-bottom: 1.2rem; }
.trust-grid p { margin: 0; border-left: 1px solid rgba(255,255,255,.25); padding-left: 1rem; }
.trust-grid strong, .trust-grid span { display:block; }
.trust-grid strong { font-family: var(--font-family-heading); font-size: 1.4rem; }
.trust-grid span { color:#a7d7e8; font-size:.85rem; }
.flyer-section { background: #eaf7fb; padding: 4.5rem 0; }
.flyer-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 4rem; align-items: center; max-width: 930px; }
.flyer-grid img { border-radius: 18px; box-shadow: 0 18px 45px rgba(0, 55, 90, .2); }
.flyer-grid h2 { color: #063a69; font-size: clamp(2.3rem, 4vw, 4rem); line-height: 1; }
.flyer-grid p:not(.eyebrow) { font-size: 1.12rem; color: #36566d; }
.text-link { font-weight: 700; color: #087ca7; }
.footer-logo-image { width: 180px; border-radius: 8px; margin-bottom: .75rem; }
@media (max-width: 768px) { .hero { padding: 3.5rem 0; } .hero-grid, .flyer-grid, .trust-grid { grid-template-columns: 1fr; gap: 2rem; } .hero-logo { justify-self: start; max-width: 300px; } }

/* Second-pass proposal layout refinements */
.site-header > .container { display: flex; align-items: center; min-height: 112px; gap: 2rem; }
.site-header .logo { padding: .45rem 0; flex: 0 0 auto; }
.site-header .brand-logo { width: 104px; height: 104px; object-fit: contain; object-position: center; border-radius: 0; }
.site-header .main-nav { margin-left: auto; padding: 0; }
.flyer-gallery-section { padding: 4.5rem 0; background: #052c4b; color: #fff; }
.flyer-gallery-section h2 { font-size: clamp(2.4rem, 4vw, 4rem); color: #fff; margin-bottom: 2rem; }
.flyer-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.flyer-trigger { padding: 0; border: 0; border-radius: 14px; background: #021525; cursor: zoom-in; overflow: hidden; }
.flyer-trigger img { width: 100%; min-height: 430px; max-height: 570px; object-fit: contain; box-shadow: 0 18px 40px rgba(0,0,0,.28); transition: transform .2s ease; }
.flyer-trigger:hover img, .flyer-trigger:focus-visible img { transform: scale(1.02); }
.flyer-trigger:focus-visible { outline: 3px solid #43d6f7; outline-offset: 4px; }
.lightbox-open { overflow: hidden; }
.flyer-lightbox { position: fixed; inset: 0; z-index: 2000; display: grid; place-items: center; padding: 2rem; background: rgba(1, 14, 25, .88); cursor: zoom-out; }
.flyer-lightbox[hidden] { display: none; }
.flyer-lightbox-image { max-width: min(92vw, 900px); max-height: 88vh; border-radius: 10px; box-shadow: 0 24px 60px rgba(0,0,0,.45); cursor: default; }
.flyer-lightbox-close { position: fixed; top: 1rem; right: 1.25rem; width: 44px; height: 44px; border: 0; border-radius: 50%; background: #fff; color: #063a69; font-size: 2rem; line-height: 1; cursor: pointer; }
.service-card { min-height: 100%; }
.service-visual { height: 155px; background: #052c4b; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.service-visual img { width: 100%; height: 100%; object-fit: cover; }
.contact-form-wrapper { background: #fff; padding: clamp(1.5rem, 4vw, 2.5rem); border: 1px solid #cfe7f0; border-radius: 16px; box-shadow: 0 20px 45px rgba(2, 44, 75, .16); }
.contact-form-wrapper h2 { color: #063a69; }
.contact-form-wrapper,
.contact-form,
.contact-form .form-group { min-width: 0; }
.contact-form-wrapper .form-group label { color: #1e293b; font-weight: 700; line-height: 1.35; }
.contact-form-wrapper .required { color: #c2410c; }
.contact-form-wrapper .form-group input,
.contact-form-wrapper .form-group textarea,
.contact-form-wrapper .form-group select { width: 100%; max-width: 100%; color: #1e293b; background: #fff; }
@media (max-width: 768px) { .site-header > .container { min-height: 84px; gap: 1rem; } .site-header .brand-logo { width: 76px; height: 76px; } .flyer-gallery { grid-template-columns: 1fr; } .flyer-trigger img { min-height: 0; max-height: none; } .service-visual { height: 170px; } }
@media (max-width: 768px) {
  .contact-section { padding: 2rem 0; }
  .contact-grid { gap: 2rem; }
  .contact-form-wrapper { width: 100%; padding: 1.25rem; border-radius: 12px; }
  .contact-form-wrapper h2 { font-size: 1.75rem; }
  .contact-form-wrapper .form-group input,
  .contact-form-wrapper .form-group select { min-height: 48px; }
  .contact-form-wrapper .form-group textarea { min-height: 140px; }
  .contact-form-wrapper .btn { width: 100%; min-height: 48px; }
}