/* ================================================
   MОВНИЙ КОНТУР - Основні стилі
   ================================================ */

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

:root {
  --color-primary: #667eea;
  --color-secondary: #764ba2;
  --color-accent: #ffd700;
  --color-success: #4caf50;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --bg-white: #ffffff;
  --bg-light: #fafafa;
  --border-color: #e5e5e5;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 20px rgba(102, 126, 234, 0.3);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.08);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ================================================
   НАВІГАЦІЙНА ПАНЕЛЬ
   ================================================ */

.header-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  padding: 18px 0;
  transition: padding 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: opacity 0.2s;
}

.brand-logo:hover {
  opacity: 0.8;
}

.brand-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  gap: 38px;
  list-style: none;
  align-items: center;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

.nav-menu a:hover::after {
  width: 100%;
}

.btn-primary {
  padding: 12px 28px;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-secondary)
  );
  color: white;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  display: inline-block;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Мобільне меню */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
}

/* ================================================
   ГОЛОВНИЙ БЛОК (HERO)
   ================================================ */

.hero-section {
  margin-top: 76px;
  min-height: 620px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
  padding: 120px 40px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="white" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-content h1 {
  font-size: 56px;
  font-weight: 700;
  margin-bottom: 24px;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
  font-size: 22px;
  margin-bottom: 36px;
  opacity: 0.95;
  font-weight: 400;
  line-height: 1.5;
}

.hero-benefits {
  margin: 40px 0;
  font-size: 18px;
  line-height: 2.2;
}

.hero-benefits div {
  margin: 8px 0;
}

.btn-hero {
  display: inline-block;
  padding: 18px 48px;
  background: white;
  color: var(--color-primary);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 17px;
  margin-top: 24px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-hero:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* ================================================
   СЕКЦІЇ КОНТЕНТУ
   ================================================ */

.content-section {
  padding: 100px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-alternate {
  background: var(--bg-light);
}

.section-heading {
  font-size: 42px;
  text-align: center;
  margin-bottom: 60px;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  padding-bottom: 16px;
}

.section-heading::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--color-primary),
    var(--color-secondary)
  );
  border-radius: 2px;
}

/* ================================================
   СІТКА ПЕРЕВАГ
   ================================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 40px;
}

.feature-card {
  background: white;
  padding: 40px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all 0.3s ease;
  cursor: default;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.feature-icon {
  width: 72px;
  height: 72px;
  margin-bottom: 24px;
  object-fit: contain;
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 16px;
  color: var(--color-primary);
  font-weight: 600;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 15px;
}

/* ================================================
   АКОРДЕОН (ПРОГРАМА / FAQ)
   ================================================ */

.accordion-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.accordion-item {
  background: white;
  margin-bottom: 16px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all 0.3s ease;
}

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

.accordion-trigger {
  padding: 24px 28px;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
  font-size: 17px;
  user-select: none;
}

.accordion-trigger:hover {
  background: var(--bg-light);
}

.accordion-icon {
  font-size: 22px;
  transition: transform 0.3s ease;
  color: var(--color-primary);
  font-weight: bold;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition:
    max-height 0.4s ease,
    padding 0.4s ease;
  padding: 0 28px;
}

.accordion-item.active .accordion-content {
  max-height: 600px;
  padding: 0 28px 24px;
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content ul {
  list-style: none;
  padding-left: 0;
}

.accordion-content li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  color: var(--text-secondary);
  line-height: 1.7;
}

.accordion-content li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
  font-size: 20px;
}

.accordion-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 15px;
}

/* ================================================
   ТАРИФНІ ПЛАНИ
   ================================================ */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.price-card {
  background: white;
  padding: 48px 36px;
  border-radius: 12px;
  border: 2px solid var(--border-color);
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}

.price-card:hover {
  transform: translateY(-10px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.price-card.featured {
  border-color: var(--color-accent);
  transform: scale(1.05);
}

.price-card.featured::before {
  content: "ПОПУЛЯРНИЙ";
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--text-primary);
  padding: 6px 24px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.5px;
}

.price-card h3 {
  font-size: 24px;
  margin-bottom: 16px;
  color: var(--text-primary);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.price-amount {
  font-size: 48px;
  font-weight: 700;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-secondary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 20px 0;
}

.price-savings {
  color: var(--color-success);
  font-weight: 600;
  margin: 12px 0;
  font-size: 15px;
}

.price-card ul {
  list-style: none;
  margin: 32px 0;
  text-align: left;
}

.price-card li {
  padding: 12px 0;
  padding-left: 32px;
  position: relative;
  color: var(--text-secondary);
  font-size: 15px;
}

.price-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: bold;
  font-size: 18px;
}

.btn-price {
  display: inline-block;
  padding: 14px 40px;
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-secondary)
  );
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.3s ease;
  margin-top: 16px;
  font-size: 15px;
}

.btn-price:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-md);
}

/* ================================================
   ВІДГУКИ
   ================================================ */

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.review-card {
  background: white;
  padding: 36px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  position: relative;
  transition: all 0.3s ease;
}

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

.review-card::before {
  content: '"';
  position: absolute;
  top: -16px;
  left: 24px;
  font-size: 72px;
  color: var(--color-primary);
  opacity: 0.15;
  font-family: Georgia, serif;
}

.review-text {
  font-style: italic;
  margin-bottom: 20px;
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.review-author {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 15px;
}

.review-score {
  color: var(--color-accent);
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
}

/* ================================================
   ПРО ВИКЛАДАЧА
   ================================================ */

.about-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: center;
}

.about-photo img {
  width: 100%;
  max-width: 340px;
  border-radius: 12px;
  border: 4px solid var(--border-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 36px 0;
}

.stat-item {
  background: var(--bg-light);
  padding: 28px;
  border-radius: 10px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.stat-item:hover {
  background: white;
  box-shadow: var(--shadow-sm);
  border-color: var(--color-primary);
}

.stat-number {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
}

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

.about-quote {
  border-left: 4px solid var(--color-primary);
  padding-left: 24px;
  font-style: italic;
  margin: 36px 0;
  color: var(--text-secondary);
  font-size: 17px;
  line-height: 1.7;
}

.about-info p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 12px 0;
}

.about-info strong {
  color: var(--text-primary);
}

/* ================================================
   БЛОК ГАРАНТІЙ
   ================================================ */

.guarantees-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.guarantee-item {
  background: white;
  padding: 32px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  text-align: center;
  transition: all 0.3s ease;
}

.guarantee-item:hover {
  border-color: var(--color-success);
  box-shadow: var(--shadow-md);
}

.guarantee-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.guarantee-item h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--color-success);
  font-weight: 600;
}

.guarantee-item p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 15px;
}

/* ================================================
   СПОСОБИ ОПЛАТИ
   ================================================ */

.payment-methods {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin: 48px 0;
}

.payment-card {
  background: white;
  padding: 24px 32px;
  border-radius: 10px;
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.3s ease;
  min-width: 180px;
}

.payment-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.payment-icon {
  font-size: 36px;
}

.payment-card span {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 16px;
}

/* ================================================
   КОНТАКТИ
   ================================================ */

.contact-grid {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.contact-item {
  text-align: center;
  transition: transform 0.2s ease;
}

.contact-item:hover {
  transform: scale(1.05);
}

.contact-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.contact-item a {
  text-decoration: none;
  color: var(--color-primary);
  font-size: 18px;
  font-weight: 600;
  transition: color 0.2s ease;
}

.contact-item a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.contact-note {
  margin-top: 40px;
  font-size: 17px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.8;
}

.contact-note strong {
  color: var(--color-primary);
  font-size: 19px;
}

/* ================================================
   ФУТЕР
   ================================================ */

.site-footer {
  background: #1a1a1a;
  color: white;
  text-align: center;
  padding: 48px 40px;
}

.site-footer p {
  margin: 8px 0;
  opacity: 0.8;
  font-size: 15px;
}

.footer-legal {
  margin-top: 16px;
  opacity: 0.6;
  font-size: 14px;
}

/* ================================================
   АНІМАЦІЇ
   ================================================ */

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ================================================
   АДАПТИВНИЙ ДИЗАЙН
   ================================================ */

@media (max-width: 992px) {
  .nav-menu {
    display: none;
  }

  .mobile-menu-toggle {
    display: block;
  }

  .about-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .about-photo img {
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 36px;
  }

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

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

  .content-section {
    padding: 60px 24px;
  }

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

  .price-card.featured {
    transform: scale(1);
  }

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

  .payment-methods {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 0 20px;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .btn-hero {
    padding: 14px 32px;
    font-size: 15px;
  }

  .section-heading {
    font-size: 26px;
  }
}