/* === Переменные === */
:root {
  --bg-primary: #0a0a1a;
  --bg-secondary: #111128;
  --text-primary: #ffffff;
  --text-secondary: #a0a0c0;
  --accent-purple: #8b5cf6;
  --accent-blue: #3b82f6;
  --accent-pink: #d946ef;
  --gradient-main: linear-gradient(135deg, #8b5cf6, #3b82f6);
  --gradient-neon: linear-gradient(135deg, #d946ef, #8b5cf6, #3b82f6);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

/* === Сброс === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

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

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

/* === Утилиты === */
.gradient-text {
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--glass-shadow);
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: 60px;
}

/* === Кнопки === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--gradient-main);
  color: white;
  box-shadow: 0 4px 24px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.6);
}

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

.btn-outline:hover {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.1);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

/* === Навигация === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 26, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 10px 0;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition);
  font-size: 0.9375rem;
}

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

.nav-cta {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700 !important;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.burger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition);
  border-radius: 2px;
}

.burger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger.active span:nth-child(2) {
  opacity: 0;
}

.burger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.hero-orb-1 {
  width: 500px;
  height: 500px;
  background: var(--accent-purple);
  top: -100px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-blue);
  bottom: -50px;
  left: -100px;
  animation: float 10s ease-in-out infinite reverse;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: var(--accent-pink);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: float 12s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-30px); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 24px;
  color: var(--accent-purple);
}

.hero h1 {
  font-size: 3.75rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-date {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  margin-bottom: 32px;
}

.hero-date-icon {
  font-size: 1.5rem;
}

.hero-date div {
  text-align: left;
}

.hero-date strong {
  display: block;
  font-size: 1.125rem;
}

.hero-date span {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 60px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* === Преимущества === */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.advantage-card {
  padding: 40px;
  transition: all var(--transition);
}

.advantage-card:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 12px 40px rgba(139, 92, 246, 0.15);
}

.advantage-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.advantage-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.advantage-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* === О проекте === */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

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

.about-content p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-list {
  margin-top: 24px;
}

.about-list li {
  padding: 8px 0;
  color: var(--text-secondary);
  position: relative;
  padding-left: 24px;
}

.about-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-purple);
  font-weight: 700;
}

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

.about-image {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.about-graphic {
  position: relative;
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.graphic-circle {
  position: absolute;
  width: 200px;
  height: 200px;
  border: 2px solid rgba(139, 92, 246, 0.3);
  border-radius: 50%;
  animation: rotate 20s linear infinite;
}

.graphic-circle::before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--accent-purple);
  border-radius: 50%;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 20px var(--accent-purple);
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.graphic-lines {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  padding: 40px;
}

.graphic-line {
  height: 3px;
  background: var(--gradient-main);
  border-radius: 2px;
  opacity: 0.5;
}

.graphic-line:nth-child(2) {
  width: 70%;
}

.graphic-line:nth-child(3) {
  width: 40%;
}

.graphic-text {
  position: absolute;
  font-size: 3rem;
  font-weight: 900;
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  z-index: 1;
}

/* === Отзывы === */
.carousel {
  overflow: hidden;
  position: relative;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}

.review-card {
  min-width: calc(33.333% - 16px);
  margin: 0 8px;
  padding: 32px;
  flex-shrink: 0;
}

.review-stars {
  color: #fbbf24;
  font-size: 1.25rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.review-text {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.review-author strong {
  display: block;
  font-size: 0.9375rem;
}

.review-author span {
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 32px;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.carousel-btn:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--accent-purple);
}

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

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--glass-border);
  cursor: pointer;
  transition: all var(--transition);
}

.carousel-dot.active {
  background: var(--accent-purple);
  box-shadow: 0 0 10px var(--accent-purple);
}

/* === Тарифы === */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  padding: 40px;
  text-align: center;
  transition: all var(--transition);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-featured {
  border-color: rgba(139, 92, 246, 0.4);
  background: rgba(139, 92, 246, 0.08);
  transform: scale(1.05);
}

.pricing-featured:hover {
  transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 20px;
  background: var(--gradient-main);
  border-radius: 50px;
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
}

.pricing-header {
  margin-bottom: 32px;
}

.pricing-header h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.pricing-price {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-neon);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-features {
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 10px 0;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-features li:last-child {
  border-bottom: none;
}

/* === FAQ === */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.0625rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: color var(--transition);
}

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

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* === Контакты === */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-form {
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.9375rem;
}

.form-group input {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.form-note {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-info-card {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-info-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.contact-info-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-info-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* === Модалка === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  padding: 48px;
  text-align: center;
  max-width: 420px;
  width: 90%;
}

.modal-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.modal h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.modal p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

/* === Футер === */
.footer {
  background: var(--bg-secondary);
  padding: 60px 0 24px;
  border-top: 1px solid var(--glass-border);
}

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

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 0.875rem;
}

.footer-links h4,
.footer-social h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--accent-purple);
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.social-link:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--accent-purple);
  color: var(--text-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.8125rem;
}

/* === Анимации === */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Адаптивность === */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 2.75rem;
  }

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

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }

  .pricing-featured {
    transform: none;
  }

  .pricing-featured:hover {
    transform: translateY(-4px);
  }

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

  .review-card {
    min-width: calc(50% - 16px);
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(10, 10, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 80px 40px 40px;
    gap: 24px;
    transition: right var(--transition);
    border-left: 1px solid var(--glass-border);
  }

  .nav-links.active {
    right: 0;
  }

  .burger {
    display: flex;
  }

  .hero h1 {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-stats {
    gap: 24px;
  }

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

  .section {
    padding: 70px 0;
  }

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

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

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

  .contact-wrapper {
    grid-template-columns: 1fr;
  }

  .review-card {
    min-width: calc(100% - 16px);
  }

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

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .section-title {
    font-size: 1.625rem;
  }

  .advantage-card {
    padding: 24px;
  }

  .contact-form {
    padding: 24px;
  }
}