/* Global Styles */
:root {
  --primary: #0052CC;
  --primary-dark: #003D99;
  --primary-light: #38BDF8;
  --secondary: #1e3a8a;
  --secondary-light: #3b82f6;
  --white: #ffffff;
  --light-gray: #f8fafc;
  --gray: #6B7280;
  --dark-gray: #4B5563;
  --black: #111827;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  --box-shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.5;
  color: var(--dark-gray);
  background-color: var(--white);
}

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

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

ul {
  list-style: none;
}

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

.section-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--secondary) 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}

.section-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--gray);
}

.primary-button {
  display: inline-block;
  background-color: var(--primary);
  color: var(--white);
  padding: 1rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  text-align: center;
}

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

.secondary-button {
  display: inline-block;
  background-color: transparent;
  color: var(--white);
  padding: 0.9rem 1.9rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid var(--primary);
  cursor: pointer;
  text-align: center;
}

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

/* Header Styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
}

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

.logo-image {
  height: 40px;
  width: auto;
  margin-right: 0.75rem;
}

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

.main-nav {
  display: flex;
}

.nav-list {
  display: flex;
  gap: 2rem;
}

.nav-item a {
  color: var(--dark-gray);
  font-weight: 500;
  position: relative;
}

.nav-item a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

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

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

.nav-item.active a {
  color: var(--primary);
}

.language-switcher {
  display: flex;
  gap: 0.5rem;
}

.lang-btn {
  background: none;
  border: none;
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  font-weight: 500;
  color: var(--gray);
  transition: var(--transition);
  border-radius: 4px;
}

.lang-btn:hover {
  color: var(--primary);
  background-color: rgba(0, 82, 204, 0.1);
}

.lang-btn.active {
  color: var(--primary);
  background-color: rgba(0, 82, 204, 0.1);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 24px;
  position: relative;
  z-index: 1001;
}

.bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--dark-gray);
  margin: 5px 0;
  transition: var(--transition);
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('images/tech_background_1.png');
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 82, 204, 0.85) 0%, rgba(30, 58, 138, 0.9) 100%);
  z-index: -1;
}

.hero-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  color: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  animation: fadeInUp 1s ease-out;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, #FFFFFF 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-description {
  font-size: 1.25rem;
  line-height: 1.6;
  max-width: 700px;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-image {
  max-width: 900px;
  width: 100%;
  margin-top: 2rem;
  animation: float 6s ease-in-out infinite;
}

.device-mockup {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.2));
}

/* Features Section */
.features-section {
  padding: 6rem 0;
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 20px;
}

.feature-icon img {
  width: 40px;
  height: 40px;
  filter: brightness(0) invert(1);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 1rem;
}

.feature-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray);
}

/* Advantages Section */
.advantages-section {
  padding: 6rem 0;
  background-color: var(--light-gray);
}

.advantages-grid {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.advantage-item {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.advantage-item.reverse {
  flex-direction: row-reverse;
}

.advantage-content {
  flex: 1;
}

.advantage-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 1rem;
}

.advantage-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--dark-gray);
  margin-bottom: 1.5rem;
}

.advantage-list {
  padding-left: 1.5rem;
}

.advantage-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  font-size: 1rem;
  color: var(--dark-gray);
}

.advantage-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary);
}

.advantage-image {
  flex: 1;
  max-width: 500px;
}

.advantage-image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.advantage-image img:hover {
  transform: scale(1.02);
  box-shadow: var(--box-shadow-hover);
}

/* Scenarios Section */
.scenarios-section {
  padding: 6rem 0;
  background-color: var(--white);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.scenario-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.scenario-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  border-radius: 20px;
}

.scenario-icon img {
  width: 40px;
  height: 40px;
  filter: brightness(0) invert(1);
}

.scenario-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 1rem;
}

.scenario-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray);
}

/* About Section */
.about-section {
  padding: 6rem 0;
  background-color: var(--light-gray);
}

.about-content {
  display: flex;
  align-items: center;
  gap: 4rem;
  margin-bottom: 4rem;
}

.about-text {
  flex: 1;
}

.about-text p {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--dark-gray);
  margin-bottom: 1.5rem;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-image {
  flex: 1;
  max-width: 500px;
}

.about-image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.about-image img:hover {
  transform: scale(1.02);
  box-shadow: var(--box-shadow-hover);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.value-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

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

.value-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 1rem;
}

.value-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray);
}

/* Download Section */
.download-section {
  padding: 6rem 0;
  background-color: var(--white);
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.platform-card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.platform-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 20px;
}

.platform-icon img {
  width: 40px;
  height: 40px;
  filter: brightness(0) invert(1);
}

.platform-name {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 1rem;
}

.platform-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray);
  margin-bottom: 1.5rem;
}

.platform-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.platform-button {
  display: flex !important;
  flex-direction: column;
  align-items: center;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  transition: var(--transition);
}

.platform-button:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.platform-button img {
  height: 30px !important;
  margin-bottom: 0.25rem;
}

.platform-button span {
  font-size: 0.75rem;
  color: var(--white);
  font-weight: 500;
}

/* CTA Section */
.cta-section {
  position: relative;
  padding: 6rem 0;
  color: var(--white);
  text-align: center;
}

.cta-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('images/tech_background_2.png');
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.cta-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 82, 204, 0.9) 0%, rgba(30, 58, 138, 0.9) 100%);
  z-index: -1;
}

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

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, #FFFFFF 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}

.cta-description {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.cta-buttons .primary-button {
  background-color: var(--white);
  color: var(--primary);
}

.cta-buttons .primary-button:hover {
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--primary-dark);
}

.cta-buttons .secondary-button {
  color: var(--white);
  border-color: var(--white);
}

.cta-buttons .secondary-button:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

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

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-slogan {
  color: var(--primary-light);
  font-style: italic;
  margin-top: 5px;
  font-size: 0.9rem;
}

.footer-links {
  margin-left: 2rem;
  flex: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-links-column {
  flex: 1;
  min-width: 150px;
}

.footer-links a {
  color: var(--white);
}

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

.footer-column-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--white);
}

.footer-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-menu a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: var(--transition);
  font-size: 0.9rem;
}

.footer-menu a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
}

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

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
  transition: var(--transition);
}

.social-link:hover {
  background-color: var(--primary-light);
  transform: translateY(-3px);
}

.social-icon {
  width: 18px;
  height: 18px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.social-icon.twitter {
  background-image: url('images/icon-twitter.svg');
}

.social-icon.linkedin {
  background-image: url('images/icon-linkedin.svg');
}

.social-icon.facebook {
  background-image: url('images/icon-facebook.svg');
}

.social-icon.instagram {
  background-image: url('images/icon-instagram.svg');
}

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

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-15px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* Responsive Styles */
@media (max-width: 1023px) {
  .header-container {
    padding: 1rem;
  }

  .section-container {
    padding: 0 1.5rem;
  }

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

  .hero-subtitle {
    font-size: 1.5rem;
  }

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

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

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

  .advantage-item,
  .advantage-item.reverse,
  .about-content {
    flex-direction: column;
    gap: 2rem;
  }

  .advantage-image,
  .about-image {
    max-width: 100%;
  }

  .footer-top {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-links {
    width: 100%;
  }
}

@media (max-width: 767px) {
  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--white);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: center;
    z-index: 1000;
  }

  .main-nav.active {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }

  .nav-item a {
    font-size: 1.25rem;
  }

  .language-switcher {
    position: absolute;
    top: 1rem;
    right: 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  .advantage-title,
  .cta-title {
    font-size: 1.75rem;
  }

  .advantage-description,
  .cta-description {
    font-size: 1rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1.5rem;
  }

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

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}