:root {
  --primary-color: #7BB937;
  --primary-pressed: #639B27;
  --secondary-color: #D0ECB1;
  --secondary-pressed: #A1D36D;
  --accent-color: #9747FF;
  --text-primary: #171D11;
  --text-secondary: #A9AFA4;
  --text-light: #BEC5D2;
  --bg-primary: #FFFFFF;
  --bg-secondary: #F2F5F9;
  --bg-accent: #F3F4F6;
  --border-color: #BEC5D2;
  --shadow-light: 0px 1px 3px 0px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0px 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0px 10px 15px -3px rgba(0, 0, 0, 0.1);
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --font-family: 'Unbounded', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--text-primary);
  line-height: 1.6;
  background-color: var(--bg-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: all 0.2s ease-in-out;
  cursor: pointer;
  border: none;
  min-height: 56px;
  gap: 8px;
}

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

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

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

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

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  padding: 16px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.logo-full {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(15, 103, 254, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.hero-title .accent {
  color: var(--primary-color);
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-banner {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

.banner-image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  object-fit: cover;
}

.phone-mockup {
  position: relative;
  width: 300px;
  height: 600px;
  background: linear-gradient(145deg, #f0f0f0, #ffffff);
  border-radius: 32px;
  padding: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.app-screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.section-title {
  font-size: 40px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 64px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.features {
  padding: 100px 0;
  background-color: var(--bg-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.feature-card {
  background-color: var(--bg-primary);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--primary-color);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: 24px;
}

.feature-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.feature-description {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.about {
  padding: 100px 0;
  background-color: var(--bg-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-text .section-title {
  text-align: left;
  margin-bottom: 24px;
}

.about-description {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}

.about-stats {
  display: flex;
  gap: 40px;
  margin-top: 40px;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
}

.about-image {
  display: flex;
  justify-content: center;
}

.app-features-preview {
  position: relative;
  width: 400px;
  height: 600px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.screenshot-slider {
  position: relative;
  width: 250px;
  height: 600px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.slider-track {
  display: flex;
  height: calc(100% - 60px);
  transition: transform 0.3s ease;
  width: calc(100% * 7);
}

.slider-slide {
  flex: 0 0 calc(100% / 7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0.4;
  transition: opacity 0.3s ease;
}

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

.features-screenshot {
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
}

.slide-label {
  margin-top: 2px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.1;
}

.slider-navigation {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 60px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
}

.slider-prev,
.slider-next {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
}

.slider-prev:hover,
.slider-next:hover {
  background: var(--primary-pressed);
  transform: scale(1.05);
}

.slider-prev:disabled,
.slider-next:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.slider-dots {
  display: flex;
  gap: 8px;
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-secondary);
  cursor: pointer;
  transition: background 0.2s ease;
}

.slider-dot.active {
  background: var(--primary-color);
}

.download {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  text-align: center;
}

.download .section-title,
.download .section-subtitle {
  color: white;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.download-btn {
  display: block;
  transition: transform 0.2s ease;
}

.download-btn:hover {
  transform: scale(1.05);
}

.download-btn img {
  height: 50px;
  width: auto;
  max-width: 160px;
}

.download-info {
  max-width: 500px;
  margin: 0 auto;
}

.download-note {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 24px;
  font-size: 16px;
}

.security-badges {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.security-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
}

.footer {
  background-color: var(--text-primary);
  color: white;
  padding: 60px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.footer-logo .logo-full {
  height: 32px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-logo .logo {
  filter: brightness(0) invert(1);
}

.footer-logo .brand-name {
  color: white;
}

.footer-description {
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-column h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  color: white;
}

.footer-column a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-bottom-links a:hover {
  color: white;
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .nav-links {
    display: none;
  }

  .logo-full {
    height: 28px;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-title {
    font-size: 40px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-banner {
    max-width: 100%;
    padding: 0 16px;
  }

  .banner-image {
    border-radius: var(--border-radius);
  }

  .phone-mockup {
    width: 250px;
    height: 500px;
  }

  .section-title {
    font-size: 32px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card {
    padding: 32px;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-text .section-title {
    text-align: center;
  }

  .about-stats {
    justify-content: center;
    gap: 24px;
  }

  .app-features-preview {
    width: 300px;
    height: 400px;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .security-badges {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .logo-full {
    height: 24px;
  }

  .footer-logo .logo-full {
    height: 24px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .btn {
    padding: 14px 24px;
    font-size: 14px;
  }

  .section-title {
    font-size: 28px;
  }

  .feature-card {
    padding: 24px;
  }

  .feature-title {
    font-size: 20px;
  }

  .hero-banner {
    padding: 0 8px;
  }

  .phone-mockup {
    width: 200px;
    height: 400px;
  }

  .about-stats {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
}