/* ===== CSS RESET & VARIABLES ===== */
:root {
  --primary-color: #1a73e8;
  --primary-dark: #0d47a1;
  --secondary-color: #f57c00;
  --accent-color: #34a853;
  --text-dark: #333333;
  --text-light: #666666;
  --text-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;
  --border-color: #e0e0e0;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--border-radius);
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 1rem;
}

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

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

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

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

.btn-full {
  width: 100%;
}

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: white;
  padding: 8px;
  z-index: 1000;
  border-radius: var(--border-radius);
}

.skip-link:focus {
  top: 6px;
}

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

.header.scrolled {
  padding: 10px 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
}

.logo h1 {
  font-size: 1.8rem;
  margin-bottom: 0;
}

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

.navigation {
  display: flex;
}

.nav-list {
  display: flex;
  list-style: none;
}

.nav-item {
  margin-left: 2rem;
}

.nav-link {
  font-weight: 500;
  position: relative;
  padding: 5px 0;
}

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

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.hamburger-line {
  width: 25px;
  height: 3px;
  background-color: var(--text-dark);
  margin: 3px 0;
  transition: var(--transition);
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
              url('Background\ img.jpg') no-repeat center center/cover;
  color: var(--text-white);
  text-align: center;
}

.hero-container {
  width: 100%;
}

.hero-title {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease;
}

.hero-description {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 2rem;
  animation: fadeInUp 1s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  animation: fadeInUp 1s ease 0.4s both;
}

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

/* ===== SECTIONS ===== */
.section-padding {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: 15px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 3px;
  background-color: var(--primary-color);
}

.section-subtitle {
  color: var(--text-light);
  font-size: 1.1rem;
}

/* ===== ABOUT SECTION ===== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-text p {
  margin-bottom: 20px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.feature-item {
  text-align: center;
  padding: 20px 15px;
  border-radius: var(--border-radius);
  background-color: var(--bg-light);
  transition: var(--transition);
}

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

.feature-icon {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.feature-item h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

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

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: var(--transition);
}

.about-image:hover img {
  transform: scale(1.05);
}

/* ===== SERVICES SECTION ===== */
.services {
  background-color: var(--bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background-color: var(--bg-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.service-image {
  height: 200px;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.service-card:hover .service-image img {
  transform: scale(1.1);
}

.service-content {
  padding: 25px;
}

.service-title {
  color: var(--primary-color);
  margin-bottom: 15px;
}

.service-features {
  list-style: none;
  margin-top: 15px;
}

.service-features li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

/* ===== PROJECTS SECTION ===== */
.projects-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 20px;
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
  background-color: var(--primary-color);
  color: var(--text-white);
  border-color: var(--primary-color);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.project-card {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 300px;
}

.project-image {
  width: 100%;
  height: 100%;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.project-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 25px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  color: var(--text-white);
  transform: translateY(20px);
  opacity: 0;
  transition: var(--transition);
}

.project-card:hover .project-overlay {
  transform: translateY(0);
  opacity: 1;
}

.project-card:hover .project-image img {
  transform: scale(1.1);
}

.project-title {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.project-link {
  display: inline-block;
  margin-top: 10px;
  color: var(--text-white);
  font-weight: 500;
  border-bottom: 1px solid var(--text-white);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
  background-color: var(--bg-light);
}

.testimonials-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background-color: var(--bg-white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 10px;
  left: 20px;
  font-size: 4rem;
  color: var(--primary-color);
  opacity: 0.2;
  font-family: Georgia, serif;
}

.testimonial-content {
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.testimonial-author h4 {
  margin-bottom: 5px;
  color: var(--primary-color);
}

.testimonial-author p {
  margin-bottom: 0;
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== CONTACT SECTION ===== */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-info-title {
  margin-bottom: 30px;
  color: var(--primary-color);
}

.contact-details {
  margin-bottom: 30px;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  margin-bottom: 25px;
}

.contact-icon {
  font-size: 1.2rem;
  color: var(--primary-color);
  margin-right: 15px;
  margin-top: 5px;
}

.contact-detail h4 {
  margin-bottom: 5px;
}

.contact-detail a {
  color: var(--text-dark);
}

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

.social-links {
  display: flex;
  gap: 15px;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: var(--text-white);
  border-radius: 50%;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
}

/* ===== CONTACT FORM ===== */
.contact-form {
  background-color: var(--bg-white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.required {
  color: #e53935;
}

.form-control {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: 'Poppins', sans-serif;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.hidden {
  display: none;
}

/* ===== FOOTER ===== */
.footer {
  background-color: #2c3e50;
  color: var(--text-white);
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-title {
  position: relative;
  padding-bottom: 15px;
  margin-bottom: 20px;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 2px;
  background-color: var(--primary-color);
}

.footer-description {
  color: #bdc3c7;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #bdc3c7;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--text-white);
  padding-left: 5px;
}

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

.footer-contact li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 15px;
  color: #bdc3c7;
}

.footer-contact i {
  margin-right: 10px;
  color: var(--primary-color);
}

.footer-contact a {
  color: #bdc3c7;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #34495e;
  color: #bdc3c7;
  font-size: 0.9rem;
}

/* ===== FLOATING BUTTONS ===== */
.whatsapp-float {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: var(--text-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  transition: var(--transition);
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background-color: #128C7E;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

.back-to-top {
  position: fixed;
  bottom: 25px;
  left: 25px;
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: var(--text-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow);
  z-index: 999;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  border: none;
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
}

/* ===== LOADING SPINNER ===== */
.loading-spinner {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.loading-spinner.active {
  opacity: 1;
  visibility: visible;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(26, 115, 232, 0.2);
  border-top: 5px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 12px 20px;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .navigation {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .navigation.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-list {
    flex-direction: column;
    padding: 20px;
  }
  
  .nav-item {
    margin: 0 0 15px 0;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .section-padding {
    padding: 60px 0;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 15px;
  }
  
  .hero-title {
    font-size: 1.8rem;
  }
  
  .section-title {
    font-size: 1.7rem;
  }
  
  .services-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-slider {
    grid-template-columns: 1fr;
  }
  
  .whatsapp-float {
    width: 50px;
    height: 50px;
    font-size: 1.3rem;
    bottom: 20px;
    right: 20px;
  }
  
  .back-to-top {
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
    bottom: 20px;
    left: 20px;
  }
}