* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: #1a1a1a;
  min-height: 100vh;
  position: relative;
  z-index: 1;
  line-height: 1.6;
}
.bg-gradient {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 0;
  background: linear-gradient(120deg, #3182ce 0%, #805ad5 100%);
  opacity: 0.05;
  pointer-events: none;
}
.site-header {
  background: #fff;
  color: #1a1a1a;
  padding: 1rem 1.2rem;
  position: relative;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
}
.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}
.logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
.site-header h1 {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #1a1a1a;
}
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: #1a1a1a;
  border-radius: 2px;
  transition: 0.3s;
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}
.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-menu a {
  color: #1a1a1a;
  text-decoration: none;
  font-weight: 500;
  font-size: 1rem;
  transition: color 0.2s;
}
.nav-menu a:hover {
  color: #3182ce;
}
.nav-menu a.nav-cta {
  background: #3182ce;
  color: #fff;
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  transition: background 0.2s;
}
.nav-menu a.nav-cta:hover {
  background: #2563eb;
  color: #fff;
}
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.2rem;
  position: relative;
  z-index: 2;
}
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  padding: 4rem 0 2rem 0;
  gap: 3rem;
  flex-wrap: wrap;
}
.hero-content {
  flex: 1 1 340px;
}
.hero-content h2 {
  font-size: 2.8rem;
  font-weight: 800;
  color: #1a1a1a;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.hero-subtitle {
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 1.8rem;
  font-weight: 400;
  line-height: 1.5;
}
.download-btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: linear-gradient(90deg, #3182ce 0%, #805ad5 100%);
  color: #fff;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 4px 12px rgba(49, 130, 206, 0.2);
  transition: transform 0.2s, box-shadow 0.2s;
  border: none;
  cursor: pointer;
}
.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(49, 130, 206, 0.3);
}
.download-btn.large {
  padding: 1rem 2.5rem;
  font-size: 1.15rem;
}
.hero-visual {
  flex: 1 1 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.phone-mockup {
  width: 100%;
  max-width: 320px;
}
.phone-mockup img {
  width: 100%;
  border-radius: 30px;
  box-shadow: 0 10px 40px rgba(49, 130, 206, 0.15);
  border: 12px solid #1a1a1a;
}
.features {
  padding: 4rem 0;
  background: rgba(49, 130, 206, 0.03);
  border-radius: 20px;
  padding: 4rem 2rem;
  margin: 2rem 0;
}
.features h2 {
  text-align: center;
  font-size: 2.5rem;
  color: #1a1a1a;
  margin-bottom: 0.7rem;
}
.section-subtitle {
  text-align: center;
  font-size: 1.1rem;
  color: #666;
  margin-bottom: 3rem;
  font-weight: 400;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.feature-item {
  background: #fff;
  padding: 2rem;
  border-radius: 14px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}
.feature-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 32px rgba(49, 130, 206, 0.1);
}
.feature-icon {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}
.feature-item h3 {
  font-size: 1.3rem;
  color: #1a1a1a;
  margin: 0 0 0.6rem 0;
  font-weight: 700;
}
.feature-item p {
  color: #666;
  font-size: 0.95rem;
  margin: 0;
}
.about {
  padding: 4rem 0;
}
.about h2 {
  text-align: center;
  font-size: 2.5rem;
  color: #1a1a1a;
  margin-bottom: 3rem;
}
.about-content {
  display: flex;
  gap: 4rem;
  align-items: center;
  flex-wrap: wrap;
}
.about-text {
  flex: 1 1 340px;
}
.about-text p {
  font-size: 1.05rem;
  color: #666;
  margin-bottom: 1.2rem;
  line-height: 1.7;
}
.about-highlight {
  color: #3182ce;
  font-weight: 700;
  font-size: 1.1rem;
}
.about-stats {
  flex: 1 1 280px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.stat {
  background: linear-gradient(120deg, #3182ce 0%, #805ad5 100%);
  color: #fff;
  padding: 1.8rem;
  border-radius: 14px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(49, 130, 206, 0.15);
}
.stat h4 {
  font-size: 2.2rem;
  margin: 0 0 0.3rem 0;
  font-weight: 800;
}
.stat p {
  font-size: 1rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.95);
}
.contact {
  background: #f8f9fa;
  padding: 4rem 2rem;
  border-radius: 20px;
  margin: 2rem 0;
}
.contact h2 {
  text-align: center;
  font-size: 2.2rem;
  color: #1a1a1a;
  margin-bottom: 0.7rem;
}
.support-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 500px;
  margin: 2rem auto;
}
.support-form input,
.support-form textarea {
  padding: 0.85rem;
  border: 1px solid #ddd;
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: #1a1a1a;
  transition: border 0.2s, box-shadow 0.2s;
}
.support-form input:focus,
.support-form textarea:focus {
  outline: none;
  border: 2px solid #3182ce;
  box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}
.support-form button {
  padding: 0.9rem;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  background: linear-gradient(90deg, #3182ce 0%, #805ad5 100%);
  color: #fff;
  transition: transform 0.2s, box-shadow 0.2s;
}
.support-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(49, 130, 206, 0.2);
}
.form-status {
  text-align: center;
  margin-top: 1rem;
  color: #3182ce;
  font-weight: 500;
}
.cta-section {
  background: linear-gradient(120deg, #3182ce 0%, #805ad5 100%);
  color: #fff;
  padding: 3rem 2rem;
  border-radius: 20px;
  text-align: center;
  margin: 4rem 0 2rem 0;
}
.cta-section h2 {
  font-size: 2.2rem;
  margin-bottom: 0.7rem;
}
.cta-section p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  opacity: 0.95;
}
footer {
  background: #1a1a1a;
  color: #fff;
  text-align: center;
  padding: 2rem 1.2rem;
  margin-top: 2rem;
  font-size: 0.95rem;
}
.footer-content p {
  margin: 0.5rem 0;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
  }
  .nav-menu.active {
    max-height: 300px;
  }
  .nav-menu a {
    padding: 1rem;
    border-bottom: 1px solid #f0f0f0;
    display: block;
  }
  .nav-menu a.nav-cta {
    border: none;
    background: #3182ce;
    color: #fff;
    margin: 1rem;
    border-radius: 8px;
  }
  .hero {
    padding: 2.5rem 0 1.5rem 0;
  }
  .hero-content h2 {
    font-size: 2.2rem;
  }
  .hero-visual {
    order: -1;
    margin-bottom: 1rem;
  }
  .phone-mockup {
    max-width: 240px;
  }
  .features h2 {
    font-size: 1.8rem;
  }
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .feature-item {
    padding: 1.5rem;
  }
  .about-content {
    gap: 2rem;
  }
  .about h2 {
    font-size: 1.8rem;
  }
  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
  .stat {
    padding: 1rem;
  }
  .stat h4 {
    font-size: 1.6rem;
  }
  .stat p {
    font-size: 0.85rem;
  }
  .contact h2 {
    font-size: 1.8rem;
  }
  .cta-section h2 {
    font-size: 1.8rem;
  }
  .cta-section p {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 14px;
  }
  .site-header {
    padding: 0.8rem 1rem;
  }
  .site-header h1 {
    font-size: 1.4rem;
  }
  .logo {
    width: 32px;
    height: 32px;
  }
  main {
    padding: 0 0.8rem;
  }
  .hero {
    padding: 1.5rem 0 1rem 0;
  }
  .hero-content h2 {
    font-size: 1.6rem;
    line-height: 1.2;
  }
  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1rem;
  }
  .download-btn {
    padding: 0.7rem 1.5rem;
    font-size: 0.95rem;
  }
  .download-btn.large {
    padding: 0.85rem 2rem;
  }
  .phone-mockup {
    max-width: 180px;
  }
  .phone-mockup img {
    border-width: 8px;
    border-radius: 20px;
  }
  .features {
    padding: 2rem 1rem;
    margin: 1.5rem 0;
  }
  .features h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  .section-subtitle {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }
  .feature-grid {
    gap: 1rem;
  }
  .feature-item {
    padding: 1rem;
  }
  .feature-icon {
    font-size: 2.2rem;
  }
  .feature-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
  }
  .feature-item p {
    font-size: 0.9rem;
  }
  .about {
    padding: 2rem 0;
  }
  .about h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
  }
  .about-content {
    flex-direction: column;
    gap: 1.5rem;
  }
  .about-text p {
    font-size: 0.95rem;
    margin-bottom: 1rem;
  }
  .about-stats {
    grid-template-columns: 1fr;
    gap: 1rem;
    width: 100%;
  }
  .stat {
    padding: 1.2rem;
  }
  .stat h4 {
    font-size: 1.4rem;
  }
  .stat p {
    font-size: 0.8rem;
  }
  .contact {
    padding: 2rem 1rem;
  }
  .contact h2 {
    font-size: 1.5rem;
  }
  .support-form {
    gap: 0.8rem;
    max-width: 100%;
  }
  .support-form input,
  .support-form textarea {
    padding: 0.7rem;
    font-size: 16px;
  }
  .support-form button {
    padding: 0.75rem;
  }
  .cta-section {
    padding: 2rem 1rem;
    margin: 2rem 0 1rem 0;
  }
  .cta-section h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }
  .cta-section p {
    font-size: 0.95rem;
    margin-bottom: 1rem;
  }
  footer {
    padding: 1.5rem 1rem;
    font-size: 0.85rem;
  }
  .footer-content p {
    margin: 0.3rem 0;
  }
}