/* Smart Logic Systems - Modern Design System */

:root {
  --primary-color: #0f62fe;
  --primary-dark: #0043ce;
  --secondary-color: #161616;
  --text-primary: #161616;
  --text-secondary: #525252;
  --background: #ffffff;
  --background-alt: #f4f4f4;
  --background-dark: #161616;
  --border-color: #e0e0e0;
  --success: #24a148;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  line-height: 1.75;
}

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

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--background);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1584px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 68px;
  width: auto;
  display: block;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 400;
  padding: var(--spacing-xs) 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

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

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  padding: calc(80px + var(--spacing-2xl)) var(--spacing-md) var(--spacing-2xl);
  min-height: 600px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f4f4f4 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, rgba(15, 98, 254, 0.05) 0%, rgba(15, 98, 254, 0.02) 100%);
  z-index: 0;
}

.hero-container {
  max-width: 1584px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

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

.hero h1 {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  max-width: 100%;
  height: auto;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  border-radius: 0;
}

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

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

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

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

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* Container */
.container {
  max-width: 1584px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Section */
.section {
  padding: var(--spacing-2xl) var(--spacing-md);
}

.section-dark {
  background: var(--background-dark);
  color: white;
}

.section-dark h2,
.section-dark h3,
.section-dark p {
  color: white;
}

.section-alt {
  background: var(--background-alt);
}

.section-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-md);
}

.section-header p {
  font-size: 1.125rem;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Cards */
.card {
  background: white;
  padding: var(--spacing-lg);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
}

.card-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

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

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

.card-link {
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.card-link:after {
  content: '→';
  transition: var(--transition);
}

.card-link:hover:after {
  transform: translateX(4px);
}

/* Service Cards */
.service-card {
  background: white;
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.service-card:hover {
  border-color: var(--primary-color);
  box-shadow: 0 4px 16px rgba(15, 98, 254, 0.1);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

/* Industry Cards */
.industry-card {
  position: relative;
  background: white;
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: var(--transition);
}

.industry-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.industry-image {
  width: 100%;
  height: 250px;
  background: var(--background-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--primary-color);
}

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

/* Article Cards */
.article-card {
  background: white;
  border: 1px solid var(--border-color);
  transition: var(--transition);
  overflow: hidden;
}

.article-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  transform: translateY(-4px);
}

.article-image {
  width: 100%;
  height: 200px;
  background: var(--background-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--primary-color);
}

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

.article-meta {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

/* Job Cards */
.job-card {
  background: white;
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  transition: var(--transition);
}

.job-card:hover {
  border-color: var(--primary-color);
  box-shadow: 0 4px 16px rgba(15, 98, 254, 0.1);
}

.job-info h3 {
  margin-bottom: var(--spacing-xs);
}

.job-details {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.job-details span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Stats Section */
.stats {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl) 0;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 3rem;
  font-weight: 300;
  color: var(--primary-color);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Footer */
.footer {
  background: var(--background-dark);
  color: white;
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
}

.footer-content {
  max-width: 1584px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: white;
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: #c6c6c6;
  font-size: 0.95rem;
}

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

.footer-bottom {
  max-width: 1584px;
  margin: 0 auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid #393939;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: #c6c6c6;
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #393939;
  color: white;
  transition: var(--transition);
}

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

/* Article Page */
.article-header {
  padding: calc(80px + var(--spacing-xl)) var(--spacing-md) var(--spacing-xl);
  background: var(--background-alt);
}

.article-header-content {
  max-width: 800px;
  margin: 0 auto;
}

.article-header h1 {
  margin-bottom: var(--spacing-md);
}

.article-body {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.article-body h2 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.article-body p {
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
  line-height: 1.8;
}

/* Responsive */
@media (max-width: 968px) {
  .hero-container {
    grid-template-columns: 1fr;
  }
  
  .hero-image {
    display: none;
  }
  
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 80px;
    flex-direction: column;
    background: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-md) 0;
    gap: var(--spacing-sm);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .section {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .hero {
    padding: calc(80px + var(--spacing-xl)) var(--spacing-md) var(--spacing-xl);
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .job-card {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}