/* =========================================
   PESETA RAND ENGINEERING & SERVICES LTD
   Custom Styles & Theme
   ========================================= */

/* === CSS VARIABLES === */
:root {
  /* Primary Colors */
  --primary-navy: #001f3f;
  --primary-blue: #0a4c7a;
  --secondary-orange: #ff0000;
  --accent-cyan: #00a8e8;
  
  /* Neutral Colors */
  --dark-gray: #2c3e50;
  --medium-gray: #7f8c8d;
  --medium-gray-2: #1f1f1f;
  --light-gray: #ecf0f1;
  --light-gray-2: #2a2a2a;
  --white: #ffffff;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-blue) 100%);
  --gradient-primary-2: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-blue) 10%);
  --gradient-accent: linear-gradient(135deg, var(--secondary-orange) 0%, #ff3633 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(0, 31, 63, 0.9) 0%, rgba(10, 76, 122, 0.8) 100%);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  
  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
}

/* === GLOBAL STYLES === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--dark-gray);
  line-height: 1.6;
  overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-navy);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--spacing-sm);
}

p {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  color: var(--dark-gray);
}

/* === HEADER & NAVIGATION === */
.header {
  background: var(--white);
  box-shadow: var(--shadow-md);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-normal);
}

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

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
}

.logo-img {
  height: 60px;
  width: auto;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-navy);
  font-family: var(--font-heading);
}

.logo-tagline {
  font-size: 0.875rem;
  color: var(--secondary-orange);
  font-weight: 500;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2.5rem;
  align-items: center;
}

.nav-link {
  color: var(--primary-navy);
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary-orange);
  transition: width var(--transition-normal);
}

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

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

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

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  width: 28px;
  height: 3px;
  background: var(--primary-navy);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

/* === HERO CAROUSEL === */
.hero-carousel {
  margin-top: 80px;
  position: relative;
  height: 700px;
  overflow: hidden;
}

.carousel-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  background-size: cover;
  background-position: center;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-content {
  max-width: 1200px;
  padding: 0 2rem;
  text-align: center;
  color: var(--white);
  animation: slideUp 0.8s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.carousel-content h1 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.carousel-content p {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--white);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.carousel-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  display: inline-block;
  font-family: var(--font-heading);
}

.btn-primary {
  background: var(--secondary-orange);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
}

.btn-primary:hover {
  background: #ff8533;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 102, 0, 0.4);
}

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

.btn-secondary:hover {
  background: var(--white);
  color: var(--primary-navy);
  transform: translateY(-3px);
}

.carousel-indicators {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
}

.indicator.active {
  background: var(--secondary-orange);
  width: 40px;
  border-radius: 6px;
}

/* === SECTION STYLES === */
.section {
  padding: var(--spacing-xl) 2rem;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  font-size: larger;
  font-weight: 600;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--secondary-orange);
  margin: 1rem auto 0;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  font-size: 1.25rem;
  color: var(--medium-gray-2);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

/* === CARDS === */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: var(--spacing-lg);
}

.card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

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

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card-content {
  padding: 2rem;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
}

.card-text {
  color: var(--medium-gray);
  margin-bottom: var(--spacing-md);
}

.card-link {
  color: var(--secondary-orange);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: 1rem;
}

/* === SERVICES GRID === */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-top: var(--spacing-lg);
}

.service-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

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

.service-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-accent);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 2rem;
}

.service-img {
  width: 300px;
  height: 140px;
  background: var(--gradient-accent);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 2rem;
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-navy);
  font-weight: 500;
}

.service-description {
  color: var(--light-gray-2);
  line-height: 1.7;
}

/* === STATS SECTION === */
.stats-section {
  background: linear-gradient(
    rgba(255, 107, 0, 0.8), 
    rgba(0, 123, 255, 0.8)
  ), url('../img/stats.jpg');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  text-align: center;
}

.stat-item {
  padding: 2rem;
}

.stat-number {
  font-size: 4rem;
  font-weight: 700;
  color: var(--secondary-orange);
  font-family: var(--font-heading);
  display: block;
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  font-size: 1.25rem;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* === CLIENTS & PARTNERS === */
.clients-section {
  background: var(--light-gray);
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: var(--spacing-lg);
}

.client-logo {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 150px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  opacity: 0.7;
}

.client-logo:hover {
  opacity: 1;
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

.client-logo img {
  max-width: 100%;
  max-height: 80px;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter var(--transition-normal);
}

.client-logo:hover img {
  filter: grayscale(0%);
}

/* === TESTIMONIALS === */
.testimonials-slider {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  padding: 2rem;
}

.testimonial {
  background: var(--white);
  padding: 3rem;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  display: none;
}

.testimonial.active {
  display: block;
  animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.testimonial-text {
  font-size: 1.25rem;
  font-style: italic;
  color: var(--dark-gray);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.testimonial-author {
  font-weight: 600;
  color: var(--primary-navy);
  font-size: 1.125rem;
}

.testimonial-position {
  color: var(--secondary-orange);
  font-size: 1rem;
}

/* === CONTACT FORM === */
.contact-section {
  background: var(--light-gray);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info {
  background: var(--gradient-primary);
  color: var(--white);
  padding: 3rem;
  border-radius: 16px;
  height: 100%;
}

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

.contact-item {
  display: flex;
  gap: 1rem;
  margin-bottom: var(--spacing-md);
  align-items: start;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--secondary-orange);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-details h4 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.contact-details p {
  color: var(--light-gray);
  margin: 0;
}

.contact-form {
  background: var(--white);
  padding: 3rem;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--primary-navy);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--light-gray);
  border-radius: 8px;
  font-size: 1rem;
  font-family: var(--font-body);
  transition: border-color var(--transition-fast);
}

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

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

.btn-submit {
  width: 100%;
  padding: 1.25rem;
  font-size: 1.125rem;
  background: var(--secondary-orange);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn-submit:hover {
  background: #ff8533;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 102, 0, 0.3);
}

/* === FOOTER === */
.footer {
  background: var(--primary-navy);
  color: var(--white);
  padding: var(--spacing-xl) 2rem var(--spacing-md);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.footer-section p {
  color: var(--light-gray);
  line-height: 1.8;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--light-gray);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-decoration: none;
  transition: all var(--transition-normal);
}

.social-link:hover {
  background: var(--secondary-orange);
  transform: translateY(-3px);
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: var(--light-gray);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--white);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transition: left var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
  }
  
  .hero-carousel {
    height: 500px;
  }
  
  .carousel-content p {
    font-size: 1.125rem;
  }
  
  .carousel-buttons {
    flex-direction: column;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

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

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

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

.bg-primary { background: var(--primary-navy); }
.bg-secondary { background: var(--secondary-orange); }
.bg-light { background: var(--light-gray); }

.text-primary { color: var(--primary-navy); }
.text-secondary { color: var(--secondary-orange); }
.text-white { color: var(--white); }


/* CLIENTS CAROUSEL SECTION */
.clients-section {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 4rem 0;
}

.clients-carousel {
  overflow: hidden;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 3rem 0;
  margin: 3rem auto;
  max-width: 1200px;
}

.carousel-track {
  display: flex;
  gap: 4rem;
  animation: scroll 30s linear infinite;
}

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

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

.client-slide {
  min-width: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  flex-shrink: 0;
}

.client-slide img {
  width: 100px;
  height: 50px;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.6);
  transition: all 0.4s ease;
}

.client-slide:hover img {
  filter: grayscale(0%) opacity(1);
  transform: scale(1.08);
}

/* Responsive Design */
@media (max-width: 768px) {
  .carousel-track {
    gap: 3rem;
    animation-duration: 25s;
  }
  
  .client-slide {
    min-width: 120px;
  }
  
  .client-slide img {
    width: 80px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .carousel-track {
    gap: 2rem;
    animation-duration: 20s;
  }
  
  .client-slide {
    min-width: 100px;
  }
  
  .client-slide img {
    width: 70px;
    height: 35px;
  }
  
  .clients-carousel {
    padding: 2rem 0;
  }
}

/* PARALLAX SERVICES BACKGROUND */
.parallax-services {
  position: relative;
  background-image: url('../img/services.jpg');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Ensure sections have relative positioning for z-index */
.parallax-services section {
  position: relative;
  z-index: 1;
}

/* Mobile fallback - disable parallax on smaller screens */
@media (max-width: 768px) {
  .parallax-services {
    background-attachment: scroll;
  }
}