/* ========================================
   Software Systems Solutions LLC
   Modern Professional Stylesheet
   ======================================== */

/* ----------------------------------------
   1. CSS RESET
   ---------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

input,
button,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

/* ----------------------------------------
   2. CSS VARIABLES
   ---------------------------------------- */
:root {
  --color-primary: #2563eb;
  --color-secondary: #1e40af;
  --color-accent: #3b82f6;
  --color-text: #1f2937;
  --color-text-medium: #4b5563;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-bg-light: #f3f4f6;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-error: #dc2626;
  --color-success: #16a34a;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;

  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-sm: 4px;
  --border-radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 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);

  --font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-mono: 'SF Mono', SFMono-Regular, ui-monospace, 'DejaVu Sans Mono', Menlo, Consolas, monospace;

  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  --container-max: 1200px;
  --header-height: 80px;
}

/* ----------------------------------------
   3. BASE STYLES
   ---------------------------------------- */
h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-size: 1.125rem;
  font-weight: 600;
}

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

a:hover {
  color: var(--color-primary);
}

strong,
b {
  font-weight: 600;
}

address {
  font-style: normal;
}

/* ----------------------------------------
   4. LAYOUT
   ---------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

section {
  padding: var(--spacing-4xl) 0;
}

.section-intro {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto var(--spacing-3xl);
  text-align: center;
}

.page-banner {
  padding-top: calc(var(--header-height) + var(--spacing-4xl));
  padding-bottom: var(--spacing-4xl);
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  text-align: center;
}

.page-banner h1 {
  margin-bottom: var(--spacing-sm);
}

.page-banner .section-intro {
  margin-bottom: 0;
}

.why-choose-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

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

.why-choose-content h2 {
  margin-bottom: var(--spacing-lg);
}

.why-choose-content p {
  margin-bottom: var(--spacing-md);
}

/* ----------------------------------------
   5. HEADER
   ---------------------------------------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-white);
  box-shadow: var(--shadow);
  z-index: 1000;
}

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

.logo a {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.logo a:hover {
  color: var(--color-primary);
}

nav ul {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

nav a {
  position: relative;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  padding: var(--spacing-sm) 0;
  transition: color var(--transition-fast);
}

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

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

nav a:hover::after {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  cursor: pointer;
  gap: 5px;
  padding: 0;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

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

/* ----------------------------------------
   6. HERO SECTION
   ---------------------------------------- */
.hero {
  padding-top: calc(var(--header-height) + var(--spacing-3xl));
  padding-bottom: var(--spacing-3xl);
  background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-content {
  max-width: 600px;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-medium);
  margin-bottom: var(--spacing-xl);
  line-height: 1.7;
}

.hero-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.hero-detail-block {
  padding: var(--spacing-md);
  background-color: var(--color-white);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border-light);
}

.hero-detail-block h3 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
}

.hero-detail-block p {
  font-size: 0.875rem;
  margin-bottom: 0;
  color: var(--color-text-medium);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

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

/* ----------------------------------------
   7. BUTTONS
   ---------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

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

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

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

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.875rem;
}

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

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

/* ----------------------------------------
   8. SERVICES SECTION
   ---------------------------------------- */
.services-overview {
  background-color: var(--color-bg-alt);
}

.services-overview h2 {
  text-align: center;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.service-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border: 1px solid var(--color-border-light);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 100%;
  height: 180px;
  border-radius: var(--border-radius);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
}

.service-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.service-card p {
  font-size: 0.9375rem;
  margin-bottom: var(--spacing-lg);
}

/* ----------------------------------------
   9. WHY CHOOSE US SECTION
   ---------------------------------------- */
.why-choose-us h2 {
  text-align: center;
}

.differentiators {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.differentiator {
  text-align: center;
  padding: var(--spacing-xl);
  background-color: var(--color-bg-alt);
  border-radius: var(--border-radius-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.differentiator:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.differentiator-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: 50%;
  margin: 0 auto var(--spacing-lg);
  font-size: 1.75rem;
  color: var(--color-white);
}

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

.differentiator p {
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* ----------------------------------------
   10. DEVELOPMENT PROCESS SECTION
   ---------------------------------------- */
.development-process {
  background-color: var(--color-bg-alt);
}

.development-process h2 {
  text-align: center;
}

.process-steps {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: var(--spacing-3xl);
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 60px;
  right: 60px;
  height: 2px;
  background-color: var(--color-border);
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-white);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  margin: 0 auto var(--spacing-lg);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.step:hover .step-number {
  background-color: var(--color-primary);
  color: var(--color-white);
}

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

.step p {
  font-size: 0.875rem;
  max-width: 200px;
  margin: 0 auto;
  color: var(--color-text-medium);
}

/* ----------------------------------------
   11. INDUSTRIES SECTION
   ---------------------------------------- */
.industries h2 {
  text-align: center;
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.industry {
  background-color: var(--color-bg-alt);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  border: 1px solid var(--color-border-light);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.industry:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.industry h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.industry p {
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* ----------------------------------------
   12. FAQ SECTION
   ---------------------------------------- */
.faq {
  background-color: var(--color-bg-alt);
}

.faq h2 {
  text-align: center;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  background-color: var(--color-white);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--transition-fast);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  background-color: var(--color-bg-alt);
}

.faq-item p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  font-size: 0.9375rem;
  color: var(--color-text-medium);
  margin-bottom: 0;
}

/* ----------------------------------------
   13. CONTACT SECTION
   ---------------------------------------- */
.contact h2 {
  text-align: center;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.contact-form {
  background-color: var(--color-bg-alt);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.form-group .required {
  color: var(--color-error);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-group label {
  font-size: 0.875rem;
  color: var(--color-text-medium);
  cursor: pointer;
  margin-bottom: 0;
}

.checkbox-group label a {
  color: var(--color-primary);
  text-decoration: underline;
}

.contact-info {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
}

.contact-info h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.contact-info address p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-md);
}

.contact-info address a {
  color: rgba(255, 255, 255, 0.9);
  transition: color var(--transition-fast);
}

.contact-info address a:hover {
  color: var(--color-white);
}

/* ----------------------------------------
   14. FOOTER
   ---------------------------------------- */
footer {
  background-color: var(--color-text);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

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

.footer-info p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-sm);
}

.footer-info strong {
  color: var(--color-white);
  font-size: 1.125rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm) var(--spacing-lg);
}

.footer-links a {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

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

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

.footer-company h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.footer-company address p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-sm);
}

.footer-company address a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-company address a:hover {
  color: var(--color-white);
}

.footer-nav h3,
.footer-legal h3 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: var(--spacing-lg);
}

.footer-nav ul,
.footer-legal ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-nav ul a,
.footer-legal ul a {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-nav ul a:hover,
.footer-legal ul a:hover {
  color: var(--color-white);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom .disclaimer {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--spacing-md);
}

.footer-bottom .copyright {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0;
}

.footer-disclaimer {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: var(--spacing-lg);
}

.footer-disclaimer p {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0;
}

.footer-copyright p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0;
}

/* ----------------------------------------
   15. COOKIE BANNER
   ---------------------------------------- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  padding: var(--spacing-lg);
  z-index: 9999;
  display: none;
}

.cookie-content {
  max-width: var(--container-max);
  margin: 0 auto;
}

.cookie-content h4 {
  margin-bottom: var(--spacing-sm);
}

.cookie-content p {
  font-size: 0.9375rem;
  margin-bottom: var(--spacing-lg);
  max-width: 800px;
}

.cookie-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.cookie-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* ----------------------------------------
   16. RESPONSIVE DESIGN
   ---------------------------------------- */
@media (max-width: 1024px) {
  :root {
    --header-height: 70px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .hero-content {
    text-align: center;
    max-width: none;
  }

  .hero-cta {
    justify-content: center;
  }

  .why-choose-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

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

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

  .process-steps {
    flex-wrap: wrap;
    gap: var(--spacing-xl);
  }

  .process-steps::before {
    display: none;
  }

  .step {
    flex: 0 0 calc(33.333% - var(--spacing-lg));
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  section {
    padding: var(--spacing-3xl) 0;
  }

  nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }

  nav.open {
    transform: translateX(0);
  }

  nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-md);
  }

  nav a {
    display: block;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
  }

  nav a:hover {
    background-color: var(--color-bg-alt);
  }

  nav a::after {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero {
    padding-top: calc(var(--header-height) + var(--spacing-2xl));
    padding-bottom: var(--spacing-2xl);
  }

  .hero-details {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .why-choose-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .differentiators {
    grid-template-columns: 1fr;
  }

  .step {
    flex: 0 0 100%;
  }

  .industries-grid {
    grid-template-columns: 1fr;
  }

  .contact-wrapper {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }

  .footer-nav ul,
  .footer-legal ul {
    align-items: center;
  }

  .cookie-buttons {
    flex-direction: column;
  }

  .cookie-buttons .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
  }

  .service-card {
    padding: var(--spacing-lg);
  }

  .differentiator {
    padding: var(--spacing-lg);
  }

  .contact-form {
    padding: var(--spacing-lg);
  }

  .contact-info {
    padding: var(--spacing-lg);
  }
}

/* ----------------------------------------
   17. ACCESSIBILITY
   ---------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (prefers-contrast: high) {
  :root {
    --color-primary: #1d4ed8;
    --color-border: #374151;
  }

  .btn {
    border-width: 3px;
  }

  .form-group input,
  .form-group textarea {
    border-width: 2px;
  }
}

/* ----------------------------------------
   18. UTILITY CLASSES
   ---------------------------------------- */
.text-center {
  text-align: center;
}

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

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

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

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

.mt-0 { margin-top: 0; }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden {
  display: none !important;
}