/* Takshak Ltd - Modern Professional Website Styles */
/* Inspired by n8n.io clean aesthetic */

:root {
  /* Color Palette - Clean & Professional */
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --secondary: #10b981;
  --accent: #f59e0b;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-accent: #f3f4f6;
  --border: #e5e7eb;

  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;

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

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --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);
}

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

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

h1 {
  font-size: 3rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.875rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
  font-size: 1.125rem;
}

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

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

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: all 0.3s ease;
}

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

nav {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

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

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

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
}

.cta-button {
  background: var(--primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

/* Main Content */
main {
  margin-top: 80px;
  min-height: calc(100vh - 80px);
}

/* Container */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

section:nth-child(even) {
  background: var(--bg-secondary);
}

/* Hero Section */
.hero {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
  clip-path: polygon(20% 0%, 100% 0%, 100% 100%, 0% 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 650px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.hero .subtitle {
  font-size: 1.375rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.5;
}

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

.btn {
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

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

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

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

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

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.service-card {
  background: var(--bg-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  color: white;
}

.service-card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

.service-link {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: gap 0.2s ease;
}

.service-link:hover {
  gap: var(--spacing-sm);
}

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

.section-label {
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-sm);
}

/* Features List */
.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-item {
  display: flex;
  gap: var(--spacing-md);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--bg-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.feature-content h4 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-xs);
}

.feature-content p {
  font-size: 0.938rem;
  margin-bottom: 0;
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  text-align: center;
}

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

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
  line-height: 1;
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%) !important;
  color: white !important;
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.cta-section h2 {
  color: #ffffff !important;
  margin-bottom: var(--spacing-md);
  font-weight: 700 !important;
  font-size: 2rem !important;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.cta-section p {
  color: #ffffff !important;
  font-size: 1.25rem !important;
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  opacity: 0.95 !important;
}

.btn-white {
  background: #ffffff;
  color: #1e40af;
  font-weight: 600;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
}

.btn-white:hover {
  background: #f9fafb;
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
  color: #1e40af;
}

/* Fix button contrast in CTA sections */
.cta-section .btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  border: 2px solid #ffffff;
  font-weight: 600;
}

.cta-section .btn-secondary:hover {
  background: #ffffff;
  color: #1e40af;
  border-color: #ffffff;
}

/* Portfolio/Case Studies */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.portfolio-item {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

.portfolio-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.portfolio-image {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 3rem;
}

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

.portfolio-content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.portfolio-tags {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.tag {
  background: var(--bg-accent);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

/* Footer */
footer {
  background: #1a1a1a;
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

.footer-section h4 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-section a {
  color: #d1d5db;
  font-size: 0.938rem;
  transition: color 0.2s ease;
}

.footer-section p strong {
  color: #ffffff;
  font-weight: 600;
}

/* Ensure all footer text is clearly visible */
.footer-section p {
  color: #e5e7eb;
  line-height: 1.6;
}

.footer-section a:hover {
  color: #ffffff;
}

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

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: #9ca3af;
  font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero .subtitle {
    font-size: 1.125rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    gap: var(--spacing-md);
  }

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

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

  .services-grid,
  .features-list,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

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

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

  .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .container,
  .container-narrow {
    padding: 0 var(--spacing-md);
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

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

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

.hidden {
  display: none;
}

/* ===========================
   Client Showcase Section
   =========================== */
.clients-section {
  background: white;
  overflow: hidden;
}

/* Logo Carousel */
.logo-carousel-container {
  width: 100%;
  overflow: hidden;
  padding: 2rem 0;
  position: relative;
}

.logo-carousel-container::before,
.logo-carousel-container::after {
  content: '';
  position: absolute;
  top: 0;
  width: 150px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.logo-carousel-container::before {
  left: 0;
  background: linear-gradient(90deg, white 0%, rgba(255, 255, 255, 0) 100%);
}

.logo-carousel-container::after {
  right: 0;
  background: linear-gradient(270deg, white 0%, rgba(255, 255, 255, 0) 100%);
}

.logo-carousel {
  display: flex;
  gap: 4rem;
  animation: scroll 30s linear infinite;
  width: fit-content;
}

.logo-carousel:hover {
  animation-play-state: paused;
}

.logo-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.client-logo {
  height: 60px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.6);
  transition: all 0.3s ease;
}

.client-logo:hover {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.1);
}

@keyframes scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Testimonials Carousel */
.testimonials-carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.testimonial-container {
  position: relative;
  min-height: 300px;
}

.testimonial-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
  pointer-events: none;
}

.testimonial-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.testimonial-content {
  background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
  padding: 3rem;
  border-radius: 1rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  border: 1px solid #e5e7eb;
  text-align: center;
}

.testimonial-text {
  font-size: 1.25rem;
  line-height: 1.8;
  color: #4b5563;
  font-style: italic;
  margin-bottom: 2rem;
}

.testimonial-author {
  border-top: 2px solid #e5e7eb;
  padding-top: 1.5rem;
}

.author-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 0.25rem;
}

.author-title {
  font-size: 1rem;
  color: #6b7280;
}

/* Testimonial Navigation Dots */
.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #d1d5db;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.dot:hover {
  background: #9ca3af;
  transform: scale(1.2);
}

.dot.active {
  background: #2563eb;
  width: 40px;
  border-radius: 6px;
}

/* Responsive Design for Clients Section */
@media (max-width: 768px) {
  .logo-carousel {
    gap: 2rem;
  }

  .client-logo {
    height: 40px;
    max-width: 120px;
  }

  .testimonial-content {
    padding: 2rem 1.5rem;
  }

  .testimonial-text {
    font-size: 1rem;
  }

  .author-name {
    font-size: 1.125rem;
  }

  .logo-carousel-container::before,
  .logo-carousel-container::after {
    width: 50px;
  }
}

@media (max-width: 480px) {
  .testimonial-content {
    padding: 1.5rem 1rem;
  }

  .testimonial-text {
    font-size: 0.938rem;
  }
}