/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #e8945a;
  --primary-dark: #d67a40;
  --primary-light: #f5b896;
  --secondary-color: #4a5568;
  --text-color: #2d3748;
  --text-secondary: #718096;
  --bg-color: #ffffff;
  --bg-light: #f7fafc;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --border-color: #e2e8f0;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu',
    'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  overflow-x: hidden;
  position: relative;
}

/* Анимированный фон */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 50%, rgba(232, 148, 90, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
  animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
}

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

/* Header */
.header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  font-size: 2rem;
  animation: logoFloat 3s ease-in-out infinite;
  display: inline-block;
}

@keyframes logoFloat {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(5deg);
  }
}

.logo-text {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-link:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

.nav-link:hover::before {
  width: 100%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
}

.mobile-menu-toggle:hover {
  transform: scale(1.1);
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
  transition: var(--transition);
  border-radius: 2px;
}

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

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
    padding: 1rem;
    gap: 1rem;
    animation: slideDown 0.3s ease;
  }

  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, #764ba2 100%);
  color: white;
  padding: 6rem 0;
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: heroShimmer 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes heroShimmer {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  animation: fadeInUp 0.8s ease;
}

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

.hero-title {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.9) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGlow 3s ease-in-out infinite;
}

@keyframes titleGlow {
  0%, 100% {
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
  }
  50% {
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.8));
  }
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  opacity: 0.95;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.btn {
  padding: 1rem 2rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background-color: white;
  color: var(--primary-color);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: white;
  border: 2px solid white;
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* Phone Mockup */
.hero-image {
  animation: fadeInRight 1s ease 0.3s both;
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.phone-mockup {
  position: relative;
  width: 300px;
  height: 600px;
  margin: 0 auto;
  animation: phoneFloat 6s ease-in-out infinite;
}

@keyframes phoneFloat {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-20px) rotate(2deg);
  }
  75% {
    transform: translateY(-10px) rotate(-2deg);
  }
}

.phone-mockup-small {
  position: relative;
  width: 200px;
  height: 400px;
  margin: 0 auto;
  transition: var(--transition);
}

.phone-mockup-small:hover {
  transform: translateY(-10px) scale(1.05);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 30px;
  padding: 15px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.3),
    0 0 0 4px rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.phone-screen::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 30px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 30px 30px 0 0;
  z-index: 1;
}

.phone-content {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.phone-content::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  animation: shimmer 3s infinite;
}

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

.phone-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 15px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  text-align: center;
  font-weight: bold;
  border-radius: 20px 20px 0 0;
  z-index: 2;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.phone-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
  position: relative;
  z-index: 1;
}

.placeholder-icon {
  font-size: 4rem;
  opacity: 0.5;
  animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.7;
  }
}

.placeholder-text {
  font-size: 1rem;
  font-weight: 500;
}

/* Sections */
.section {
  padding: 6rem 0;
  position: relative;
  isolation: isolate; /* Создает новый контекст наложения */
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-color);
  position: relative;
  display: inline-block;
  width: 100%;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
  border-radius: 2px;
  animation: lineExpand 1s ease;
}

@keyframes lineExpand {
  from {
    width: 0;
  }
  to {
    width: 80px;
  }
}

/* About Section */
.about {
  background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-color) 100%);
  position: relative;
}

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

.about-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  line-height: 1.8;
  animation: fadeIn 0.8s ease both;
}

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

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: linear-gradient(135deg, white 0%, #fafafa 100%);
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(232, 148, 90, 0.1);
}

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

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

.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 15px 40px rgba(232, 148, 90, 0.2);
  border-color: rgba(232, 148, 90, 0.3);
}

.feature-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  display: inline-block;
  transition: var(--transition);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.feature-card:hover .feature-icon {
  transform: scale(1.2) rotate(5deg);
  filter: drop-shadow(0 8px 16px rgba(232, 148, 90, 0.3));
}

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

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

/* Screenshots Section */
.screenshots {
  background: linear-gradient(180deg, var(--bg-color) 0%, var(--bg-light) 100%);
  position: relative;
  z-index: 2;
  margin-bottom: 0;
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.screenshot-item {
  text-align: center;
  transition: var(--transition);
}

.screenshot-item:hover {
  transform: translateY(-5px);
}

.screenshot-caption {
  margin-top: 1rem;
  font-weight: 500;
  color: var(--text-color);
  transition: var(--transition);
}

.screenshot-item:hover .screenshot-caption {
  color: var(--primary-color);
}

/* Teacher Section */
.teacher-card {
  max-width: 600px;
  margin: 0 auto;
  background: linear-gradient(135deg, white 0%, #fafafa 100%);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  border: 1px solid rgba(232, 148, 90, 0.1);
}

.teacher-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 50px rgba(232, 148, 90, 0.2);
}

.teacher-name {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.teacher-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.teacher-detail {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.75rem;
  border-radius: 8px;
  transition: var(--transition);
}

.teacher-detail:hover {
  background-color: rgba(232, 148, 90, 0.05);
  transform: translateX(5px);
}

.detail-label {
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 100px;
}

.detail-value {
  color: var(--text-color);
}

.link {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

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

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

.link:hover::after {
  width: 100%;
}

/* Download Section */
.download {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, #764ba2 100%);
  color: white;
  position: relative;
  overflow: hidden;
  z-index: 1;
  margin-top: 0;
}

.download::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: downloadShimmer 10s ease-in-out infinite;
}

@keyframes downloadShimmer {
  0%, 100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

.download-description {
  text-align: center;
  font-size: 1.2rem;
  margin-bottom: 3rem;
  opacity: 0.95;
  position: relative;
  z-index: 1;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: white;
  color: #000;
  padding: 0.625rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: var(--transition);
  width: 180px;
  min-height: 60px;
  height: auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  border: 1px solid #000;
  box-sizing: border-box;
}

.download-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.05), transparent);
  transition: left 0.5s;
}

.download-btn:hover::before {
  left: 100%;
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  background: white;
}

.download-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
}

/* App Store логотип */
.download-icon-appstore {
  width: 20px;
  height: 20px;
  color: #000;
  transition: var(--transition);
  fill: #000;
}

.download-btn-appstore {
  border-color: #000;
}

.download-btn-appstore:hover .download-icon-appstore {
  transform: scale(1.1);
}

/* Google Play логотип */
.download-icon-googleplay {
  width: 24px;
  height: 24px;
  transition: var(--transition);
}

.download-btn-googleplay {
  border-color: #000;
}

.download-btn-googleplay:hover .download-icon-googleplay {
  transform: scale(1.1);
}

/* RuStore логотип */
.download-icon-rustore {
  width: 28px;
  height: 28px;
  background: #0066FF;
  border-radius: 6px;
  padding: 4px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.download-icon-rustore svg {
  width: 100%;
  height: 100%;
}

.download-btn-rustore {
  border-color: #0066FF;
}

.download-btn-rustore:hover .download-icon-rustore {
  transform: scale(1.1);
}

.download-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.2;
  flex: 1;
}

.download-label {
  font-size: 0.625rem;
  color: #000;
  font-weight: 300;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.download-store {
  font-size: 1rem;
  font-weight: 600;
  color: #000;
  line-height: 1;
}

.download-btn-rustore .download-label,
.download-btn-googleplay .download-label {
  font-size: 0.625rem;
  font-weight: 400;
}

.download-btn-rustore .download-store {
  font-weight: 700;
}

.download-btn-rustore .download-label,
.download-btn-rustore .download-store {
  color: #0066FF;
}

/* Footer */
.footer {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #2d3748 100%);
  color: white;
  padding: 4rem 0 2rem;
  position: relative;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-title {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--primary-light);
}

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

.footer-links li {
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

.footer-links li:hover {
  transform: translateX(5px);
}

.footer-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  display: inline-block;
}

.footer-link::before {
  content: '→';
  position: absolute;
  left: -20px;
  opacity: 0;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--primary-light);
  padding-left: 20px;
}

.footer-link:hover::before {
  opacity: 1;
  left: 0;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.developer-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
  position: relative;
}

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

.developer-link:hover {
  color: var(--primary-light);
}

.developer-link:hover::after {
  width: 100%;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  overflow-y: auto;
  padding: 2rem 1rem;
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.modal-content {
  background-color: white;
  margin: 2rem auto;
  padding: 2.5rem;
  border-radius: 20px;
  max-width: 800px;
  width: 100%;
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: modalSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(232, 148, 90, 0.1);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2rem;
  font-weight: bold;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.05);
}

.modal-close:hover {
  color: var(--text-color);
  background: rgba(232, 148, 90, 0.1);
  transform: rotate(90deg);
}

.modal-content h2 {
  margin-bottom: 1.5rem;
  color: var(--text-color);
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-body {
  line-height: 1.8;
}

.modal-body h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text-color);
  font-size: 1.3rem;
}

.modal-body h3:first-child {
  margin-top: 0;
}

.modal-body p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.modal-body ul,
.modal-body ol {
  margin-left: 2rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.modal-body li {
  margin-bottom: 0.5rem;
}

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

.modal-body a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 0;
    min-height: 80vh;
  }

  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

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

  .hero-subtitle {
    font-size: 1.2rem;
  }

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

  .section {
    padding: 4rem 0;
  }

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

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

  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .download-btn {
    width: 100%;
    max-width: 200px;
  }

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

  .modal-content {
    padding: 1.5rem;
    margin: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

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

  .phone-mockup-small {
    width: 180px;
    height: 360px;
  }
}

/* Smooth Scroll */
html {
  scroll-behavior: smooth;
}

/* Selection */
::selection {
  background-color: var(--primary-color);
  color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

/* Loading Animation */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Параллакс эффект для секций */
.parallax {
  transform: translateZ(0);
  will-change: transform;
}