/* Base & Reset */
:root {
  --color-primary: #2c3e50;
  --color-primary-dark: #1a252f;
  --color-primary-light: #34495e;
  --color-secondary: #20b2aa;
  --color-secondary-dark: #178f89;
  --color-secondary-light: #3fc9c2;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-yellow-400: #facc15;
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --border-radius-sm: 0.125rem;
  --border-radius-md: 0.375rem;
  --border-radius-lg: 0.5rem;
  --border-radius-xl: 0.75rem;
  --border-radius-full: 9999px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  line-height: 1.5;
  color: var(--color-gray-800);
  background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

ul, ol {
  list-style-type: none;
}

button {
  background: none;
  border: none;
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

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

.highlight {
  color: var(--color-secondary);
}

/* Header & Navigation */
.sticky-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.logo-highlight {
  color: var(--color-secondary);
}

.desktop-nav {
  display: none;
}

.nav-link {
  padding: 0.5rem 1rem;
  color: var(--color-gray-600);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.mobile-menu-btn {
  display: block;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  padding-bottom: 1rem;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  border-radius: var(--border-radius-md);
  transition: all 0.3s ease;
  cursor: pointer;
}

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

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

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

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

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

.btn-light:hover {
  background-color: var(--color-gray-100);
  border-color: var(--color-gray-100);
}

.btn-full {
  width: 100%;
}

/* Hero Section */
.hero-section {
  background: linear-gradient(to right, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  padding: 5rem 0;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.hero-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-gray-200);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-image {
  display: none;
}

/* Trust Signals Section */
.trust-signals-section {
  padding: 2.5rem 0;
  background-color: var(--color-gray-50);
}

.trust-signals-text {
  text-align: center;
  color: var(--color-gray-600);
  font-weight: 500;
  margin-bottom: 1.5rem;
}

.logo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  justify-items: center;
}

.client-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0.7;
  filter: grayscale(100%);
  transition: all 0.3s ease;
}

.client-logo:hover {
  opacity: 1;
  filter: grayscale(0);
}

.client-logo i {
  width: 3rem;
  height: 3rem;
  margin-bottom: 0.5rem;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.section-title.light {
  color: var(--color-white);
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  max-width: 48rem;
  margin: 0 auto;
}

.section-description.light {
  color: var(--color-gray-300);
}

/* Services Section */
.services-section {
  padding: 5rem 0;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.service-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  padding: 2rem;
  transition: box-shadow 0.3s ease;
}

.service-card:hover {
  box-shadow: var(--shadow-xl);
}

.service-icon {
  width: 3.5rem;
  height: 3.5rem;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-icon i {
  width: 1.5rem;
  height: 1.5rem;
}

.service-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.service-description {
  color: var(--color-gray-600);
  margin-bottom: 1rem;
}

.service-features {
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.service-features li {
  display: flex;
  align-items: flex-start;
}

.service-features li i {
  color: var(--color-secondary);
  margin-right: 0.5rem;
  margin-top: 0.25rem;
  width: 1rem;
  height: 1rem;
}

.service-link {
  color: var(--color-secondary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
}

.service-link:hover {
  color: var(--color-secondary-dark);
}

.service-link i {
  width: 1rem;
  height: 1rem;
  margin-left: 0.5rem;
}

/* Process Section */
.process-section {
  padding: 5rem 0;
  background-color: var(--color-gray-50);
}

.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.process-card {
  background-color: var(--color-white);
  text-align: center;
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.process-number {
  width: 4rem;
  height: 4rem;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
}

.process-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.process-description {
  color: var(--color-gray-600);
}

/* About Section */
.about-section {
  padding: 5rem 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

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

.about-description {
  font-size: 1.125rem;
  color: var(--color-gray-600);
  margin-bottom: 1.5rem;
}

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

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1rem;
  color: var(--color-gray-600);
  text-align: center;
}

/* Case Studies Section */
.case-studies-section {
  padding: 5rem 0;
  background-color: var(--color-gray-50);
}

.case-studies-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.case-study-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.case-study-card:hover {
  box-shadow: var(--shadow-xl);
}

.case-study-image {
  width: 100%;
  height: 12rem;
  object-fit: cover;
}

.case-study-content {
  padding: 2rem;
}

.case-study-category {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-secondary);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.case-study-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.case-study-description {
  color: var(--color-gray-600);
  margin-bottom: 1.5rem;
}

.case-study-results {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.result-item {
  display: flex;
  flex-direction: column;
}

.result-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.result-label {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

.case-study-link {
  color: var(--color-secondary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
}

.case-study-link:hover {
  color: var(--color-secondary-dark);
}

.case-study-link i {
  width: 1rem;
  height: 1rem;
  margin-left: 0.5rem;
}

/* Testimonials Section */
.testimonials-section {
  padding: 5rem 0;
  background-color: var(--color-primary);
  color: var(--color-white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.testimonial-card {
  background-color: var(--color-white);
  color: var(--color-gray-900);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.testimonial-stars {
  display: flex;
  gap: 0.25rem;
  color: var(--color-yellow-400);
  margin-bottom: 1rem;
}

.testimonial-stars i {
  width: 1rem;
  height: 1rem;
}

.testimonial-text {
  font-style: italic;
  color: var(--color-gray-600);
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.author-image {
  width: 3rem;
  height: 3rem;
  border-radius: var(--border-radius-full);
  object-fit: cover;
  margin-right: 1rem;
}

.author-name {
  font-weight: 700;
}

.author-position {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

/* FAQ Section */
.faq-section {
  padding: 5rem 0;
}

.faq-container {
  max-width: 48rem;
  margin: 0 auto 3rem;
}

.accordion {
  border-top: 1px solid var(--color-gray-200);
}

.accordion-item {
  border-bottom: 1px solid var(--color-gray-200);
}

.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-gray-900);
  transition: color 0.3s ease;
}

.accordion-header:hover {
  color: var(--color-primary);
}

.accordion-icon {
  width: 1.25rem;
  height: 1.25rem;
  transition: transform 0.3s ease;
}

.accordion-header.active .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  padding: 0 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-content.active {
  max-height: 1000px;
}

.accordion-content p {
  color: var(--color-gray-600);
}

/* Glossary Section */
.glossary-section {
  padding: 5rem 0;
  background-color: var(--color-gray-50);
}

.glossary-container {
  background-color: var(--color-white);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.glossary-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  justify-content: center;
}

.glossary-filter {
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-md);
  background-color: var(--color-gray-200);
  color: var(--color-gray-700);
  transition: all 0.3s ease;
}

.glossary-filter:hover {
  background-color: var(--color-gray-300);
}

.glossary-filter.active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.glossary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.glossary-item {
  transition: opacity 0.3s ease;
}

.glossary-item.hidden {
  display: none;
}

.glossary-term {
  font-size: 1.125rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.glossary-term a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

.glossary-term a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.glossary-definition {
  color: var(--color-gray-600);
}

/* CTA Section */
.cta-section {
  padding: 4rem 0;
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.cta-content {
  text-align: center;
  max-width: 48rem;
  margin: 0 auto;
}

.cta-title {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

/* Contact Section */
.contact-section {
  padding: 5rem 0;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--border-radius-md);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.checkbox-group {
  flex-direction: row;
  align-items: flex-start;
  gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.25rem;
}

.error-message {
  color: #ef4444;
  font-size: 0.875rem;
  margin-top: 0.25rem;
  min-height: 1.25rem;
}

.contact-card {
  background-color: var(--color-gray-50);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: 2rem;
}

.contact-card-title {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
}

.contact-icon {
  color: var(--color-secondary);
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 1rem;
  margin-top: 0.25rem;
}

.contact-label {
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.contact-value {
  color: var(--color-gray-600);
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius-full);
  transition: background-color 0.3s ease;
}

.social-icon:hover {
  background-color: var(--color-primary-light);
}

.social-icon i {
  width: 1rem;
  height: 1rem;
}

/* Success Message */
.success-message {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(200%);
  background-color: var(--color-secondary);
  color: var(--color-white);
  padding: 1rem 2rem;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  transition: transform 0.3s ease;
}

.success-message.show {
  transform: translateX(-50%) translateY(0);
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-description {
  color: var(--color-gray-300);
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social-link {
  color: var(--color-gray-300);
  transition: color 0.3s ease;
}

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

.footer-social-link i {
  width: 1.125rem;
  height: 1.125rem;
}

.footer-title {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: var(--color-gray-300);
  transition: color 0.3s ease;
}

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  color: var(--color-gray-300);
}

.footer-contact-icon {
  color: var(--color-secondary);
  width: 1rem;
  height: 1rem;
  margin-right: 0.75rem;
  margin-top: 0.25rem;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-top: 1px solid var(--color-gray-700);
  padding-top: 2rem;
}

.copyright {
  color: var(--color-gray-400);
  font-size: 0.875rem;
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.legal-link {
  color: var(--color-gray-400);
  font-size: 0.875rem;
  transition: color 0.3s ease;
}

.legal-link:hover {
  color: var(--color-white);
}

/* Media Queries */
@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-buttons {
    flex-direction: row;
  }

  .logo-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
  }

  .mobile-menu-btn {
    display: none;
  }

  .hero-content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .hero-image {
    display: block;
  }

  .logo-grid {
    grid-template-columns: repeat(6, 1fr);
  }

  .about-content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

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

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

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }

  .hero-title {
    font-size: 4rem;
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .case-studies-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .glossary-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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