:root {
  --primary: #f8e32a;
  --primary-dark: #f0d81f;
  --primary-light: #fffce5;
  --secondary: #ff6b35;
  --dark: #21201f;
  --light: #ffffff;
  --bg-light: #f5f5f5;
  --border: #e5e4e2;
  --text-primary: #21201f;
  --text-secondary: #595653;
  --text-light: #8f8e8c;
  --radius: 12px;
  --transition: all 0.3s ease;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
}

body {
  color: var(--text-primary);
  line-height: 1.5;
  background: #fff;
  overflow-x: hidden;
}

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

.container {
  width: 90%;
  max-width: 1140px;
  margin: auto;
}

.btn {
  background: var(--primary);
  color: var(--text-primary);
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transform: translateY(0);
  text-decoration: none;
}

.btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(248, 227, 42, 0.3);
}

.btn:focus-visible {
  outline: 2px solid var(--primary-dark);
}

.btn-secondary {
  background: var(--text-primary);
  color: #fff;
}

.btn-secondary:hover {
  background: #000;
  color: #fff;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 0;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  user-select: none;
}

nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

nav a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 600;
  position: relative;
}

nav a:hover {
  color: var(--secondary);
}

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

nav a:hover:after {
  width: 100%;
}

.header-btn {
  background: var(--text-primary);
  color: #fff;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.header-btn:hover {
  background: #000;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--dark);
}

/* Hero */
.hero {
  background: var(--primary-light);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}

.hero:before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(248, 227, 42, 0.1) 0%, rgba(255, 107, 53, 0.1) 100%);
  top: -200px;
  right: -100px;
  z-index: 0;
}

.hero:after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(248, 227, 42, 0.1) 0%, rgba(255, 107, 53, 0.1) 100%);
  bottom: -150px;
  left: -100px;
  z-index: 0;
}

.hero-inner {
  display: flex;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-left {
  flex: 1;
}

.hero h1 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
  color: var(--text-primary);
}

.hero p {
  font-size: 18px;
  margin-bottom: 24px;
  color: var(--text-secondary);
}

.hero-form {
  background: #fff;
  padding: 28px;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  max-width: 360px;
  width: 100%;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.hero-form:hover {
  transform: translateY(-5px);
}

.hero-form h3 {
  margin-bottom: 16px;
  color: var(--text-primary);
}

.hero-form input,
.hero-form select {
  width: 100%;
  padding: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 16px;
  transition: var(--transition);
  color: var(--text-primary);
  background-color: #fff;
}

.hero-form input:focus,
.hero-form select:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(248, 227, 42, 0.2);
}

.hero-form input::placeholder {
  color: var(--text-light);
}

.hero-form small {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.4;
}

.hero-form small a {
  color: var(--text-light);
  text-decoration: underline;
  transition: var(--transition);
}

.hero-form small a:hover {
  color: var(--secondary);
}

/* Features */
.features {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  color: var(--text-primary);
  font-size: 32px;
  font-weight: 700;
}

.section-title:after {
  content: '';
  position: absolute;
  width: 60px;
  height: 4px;
  background: var(--primary);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.feature-card:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: var(--transition);
}

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

.feature-card i {
  font-size: 40px;
  color: var(--primary);
  margin-bottom: 12px;
  transition: var(--transition);
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card:hover i {
  transform: scale(1.1);
}

.feature-card h4 {
  color: var(--text-primary);
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 600;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.4;
  flex-grow: 1;
}

/* Payment note */
.payment-note {
  cursor: pointer;
  color: #0066cc;
  font-size: 0.9em;
  margin-left: 2px;
  font-weight: 400;
}

.payment-note:hover {
  text-decoration: underline;
}

/* Steps */
.steps {
  padding: 60px 0;
  background: var(--bg-light);
  position: relative;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  text-align: center;
}

.step {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  transition: var(--transition);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}

.step:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--dark);
  font-weight: 700;
  margin-bottom: 12px;
  transition: var(--transition);
  font-size: 18px;
}

.step:hover .step-number {
  transform: scale(1.1);
}

.step h4 {
  color: var(--text-primary);
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 600;
}

.step p {
  color: var(--text-secondary);
  font-size: 15px;
  flex-grow: 1;
}

.step:last-child h4 {
  font-weight: 700;
}

/* FAQ */
.faq {
  padding: 60px 0;
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary);
}

.faq-question {
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-primary);
  font-size: 16px;
  padding: 4px 0;
}

.faq-question:hover {
  color: var(--secondary);
}

.faq-question.active {
  color: var(--secondary);
}

.faq-question i {
  transition: var(--transition);
  font-size: 14px;
  color: var(--text-light);
}

.faq-question.active i {
  transform: rotate(180deg);
  color: var(--secondary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--text-secondary);
}

.faq-answer.show {
  max-height: 500px;
  padding-top: 12px;
  font-size: 15px;
  line-height: 1.5;
}

/* Reviews */
.reviews {
  padding: 60px 0;
  background: var(--bg-light);
}

.review-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
  position: relative;
  border: 1px solid var(--border);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.review-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.review-card:before {
  content: '"';
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 60px;
  color: var(--primary-light);
  font-family: serif;
  line-height: 1;
  opacity: 0.7;
}

.review-top {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
}

.review-avatar {
  width: 64px;
  height: 64px;
  min-width: 64px;
  min-height: 64px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  border: 2px solid var(--primary);
  background-color: #f5f5f5;
  /* Оптимизация для Retina-экранов */
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  transition: all 0.3s ease;
}

.review-card:hover .review-avatar {
  transform: scale(1.05);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Заглушка при ошибке загрузки */
.review-avatar.fallback {
  background-color: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-dark);
  font-weight: bold;
  font-size: 24px;
  border: 2px dashed var(--primary);
}

.review-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
  flex-grow: 1;
}

.review-top strong {
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.review-top div {
  color: var(--text-light);
  font-size: 14px;
}

/* Footer */
footer {
  background: var(--text-primary);
  color: #fff;
  padding: 40px 0 24px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.footer-contacts {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  flex-wrap: wrap;
}

.footer-email {
  color: #ccc;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
}

.footer-email i {
  font-size: 18px;
}

.footer-socials {
  display: flex;
  gap: 12px;
  margin: 0;
}

.socials {
  display: flex;
  gap: 12px;
  font-size: 24px;
}

.socials a {
  color: #fff;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.socials a:hover {
  color: var(--primary);
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
  margin-top: 32px;
  font-size: 12px;
  text-align: center;
  color: #aaa;
  line-height: 1.5;
  width: 100%;
}

.footer-bottom a {
  color: #aaa;
  text-decoration: none;
  transition: var(--transition);
}

.footer-bottom a:hover {
  text-decoration: underline;
  color: #fff;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease forwards;
}

/* Scroll to top */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  border: none;
  font-size: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

.scroll-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  padding: 20px;
  backdrop-filter: blur(2px);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-light);
  transition: var(--transition);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.modal-close:hover {
  color: var(--secondary);
  background: rgba(0, 0, 0, 0.05);
}

.modal-content h3 {
  margin-bottom: 20px;
  color: var(--text-primary);
  font-size: 24px;
  font-weight: 700;
  padding-right: 30px;
}

.modal-content h4 {
  margin-top: 20px;
  margin-bottom: 8px;
  color: var(--text-primary);
  font-size: 18px;
  font-weight: 600;
}

.modal-content p {
  margin-bottom: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 15px;
}

.modal-content ol {
  margin-left: 20px;
  margin-bottom: 12px;
}

.modal-content li {
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
}

/* Responsive */
@media (max-width: 768px) {
  .mobile-menu-btn {
    display: block;
  }

  nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
    z-index: 998;
    border-top: 1px solid var(--border);
    gap: 16px;
    align-items: flex-start;
  }

  nav a {
    padding: 8px 0;
    width: 100%;
  }

  nav.active {
    transform: translateY(0);
    opacity: 1;
  }

  .hero-inner {
    flex-direction: column;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-form {
    max-width: 100%;
  }

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

  .footer-contacts {
    flex-direction: column;
    gap: 20px;
    text-align: center;
    align-items: center;
  }

  .footer-email {
    justify-content: center;
  }

  .footer-socials {
    justify-content: center;
  }

  .scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 18px;
  }

  .modal-content {
    padding: 24px;
    max-height: 85vh;
  }

  .modal-content h3 {
    font-size: 22px;
  }
  
  .review-avatar {
    width: 56px;
    height: 56px;
    min-width: 56px;
    min-height: 56px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 28px;
  }
  
  .hero p {
    font-size: 16px;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 15px;
    width: 100%;
    justify-content: center;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .features-grid,
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .feature-card,
  .step,
  .review-card {
    padding: 20px;
  }
  
  .review-top {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
  
  .review-top div {
    text-align: center;
  }
  
  .footer-bottom {
    font-size: 11px;
  }
  
  .footer-email {
    font-size: 14px;
  }
  
  .hero-form {
    padding: 20px;
  }
  
  .features, .steps, .faq, .reviews {
    padding: 40px 0;
  }
  
  .hero {
    padding: 60px 0 40px;
  }
  
  .logo-text {
    font-size: 18px;
  }
}

/* Дополнительные улучшения для изображений */
.review-avatar {
  /* Для высококачественных изображений на Retina-дисплеях */
  @media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* Изображение будет выглядеть четче */
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Улучшение доступности для кнопок и ссылок */
.btn:focus-visible,
.header-btn:focus-visible,
.mobile-menu-btn:focus-visible,
.modal-close:focus-visible,
.scroll-to-top:focus-visible,
nav a:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* Улучшение читаемости текста */
p, li, .faq-answer {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}