/* CSS Variables - Раздельно-дополнительная цветовая схема */
:root {
  /* Основные цвета */
  --primary-color: #FF6B35;
  --primary-dark: #E85A2B;
  --primary-light: #FF8A5B;
  
  /* Дополнительные цвета */
  --secondary-color: #4ECDC4;
  --secondary-dark: #3BA99C;
  --secondary-light: #7DD3DB;
  
  /* Акцентные цвета */
  --accent-color: #F7931E;
  --accent-dark: #D67E1A;
  --accent-light: #FFB347;
  
  /* Раздельно-дополнительные цвета */
  --split-color-1: #8B5A3C;
  --split-color-2: #2E86AB;
  
  /* Ретро цвета */
  --retro-yellow: #FFD23F;
  --retro-orange: #FF6B35;
  --retro-brown: #8B4513;
  --retro-cream: #F5F5DC;
  
  /* Нейтральные цвета */
  --white: #FFFFFF;
  --black: #000000;
  --gray-100: #F8F9FA;
  --gray-200: #E9ECEF;
  --gray-300: #DEE2E6;
  --gray-400: #CED4DA;
  --gray-500: #ADB5BD;
  --gray-600: #6C757D;
  --gray-700: #495057;
  --gray-800: #343A40;
  --gray-900: #212529;
  
  /* Градиенты */
  --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--split-color-2) 100%);
  --gradient-retro: linear-gradient(135deg, var(--retro-orange) 0%, var(--retro-yellow) 100%);
  --gradient-dark: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.5) 100%);
  
  /* Объемные тени */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.2);
  --shadow-xl: 0 16px 64px rgba(0,0,0,0.25);
  --shadow-retro: 8px 8px 0px var(--retro-brown);
  
  /* Переходы */
  --transition-fast: 0.2s ease-out;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Шрифты */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Merriweather', serif;
  
  /* Размеры */
  --border-radius: 12px;
  --border-radius-lg: 20px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
}

/* Общие стили */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-sm);
  color: var(--gray-700);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-normal);
}

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

/* Кнопки - глобальные стили */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  border: none;
  border-radius: var(--border-radius);
  transition: var(--transition-bounce);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transform: translateY(0);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: var(--transition-normal);
}

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

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

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--gradient-primary);
  color: var(--white);
  filter: brightness(1.1);
}

.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--white);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

.btn-outline-light:hover {
  background: var(--white);
  color: var(--primary-color);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

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

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

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

/* Header */
.header-main {
  background: var(--gradient-primary);
  box-shadow: var(--shadow-md);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition-normal);
}

.header-main.scrolled {
  background: rgba(255, 107, 53, 0.95);
  backdrop-filter: blur(10px);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--white) !important;
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-brand img {
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.navbar-nav .nav-link {
  color: var(--white) !important;
  font-family: var(--font-heading);
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  border-radius: var(--border-radius);
  transition: var(--transition-normal);
}

.navbar-nav .nav-link:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.navbar-toggler {
  border: none;
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-dark);
  display: flex;
  align-items: center;
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  animation: fadeInUp 1s var(--transition-slow);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
  animation: fadeInUp 1s var(--transition-slow) 0.2s both;
}

.hero-buttons {
  animation: fadeInUp 1s var(--transition-slow) 0.4s both;
}

/* Параллакс эффект */
.parallax-bg {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Секции */
section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
  position: relative;
  text-align: center;
}

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

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

/* Features Section */
.features-section {
  background: var(--gray-100);
  position: relative;
}

.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-100) 100%);
}

.feature-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.feature-card .card-image {
  position: relative;
  overflow: hidden;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

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

.feature-card .card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.feature-card .card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.feature-card .card-text {
  color: var(--gray-600);
  margin-bottom: var(--spacing-md);
  flex: 1;
}

.price-tag {
  background: var(--gradient-primary);
  color: var(--white);
  padding: 10px 20px;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-sm);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.price-tag .price {
  font-size: 2rem;
  font-weight: 700;
  font-family: var(--font-heading);
}

/* Case Studies Section */
.case-studies-section {
  background: var(--white);
}

.case-study-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.case-study-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.case-study-card .card-image {
  position: relative;
  overflow: hidden;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-study-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-normal);
}

.case-study-card:hover .card-image img {
  transform: scale(1.05);
}

.case-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-content h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.stats {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}

.stat-item {
  background: var(--gradient-secondary);
  color: var(--white);
  padding: 8px 16px;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* External Resources Section */
.external-resources-section {
  background: var(--gray-100);
  position: relative;
}

.resource-card {
  background: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
  text-align: center;
  border-left: 4px solid var(--primary-color);
}

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

.resource-card h4 {
  margin-bottom: var(--spacing-sm);
}

.resource-card h4 a {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
}

.resource-card h4 a:hover {
  color: var(--primary-dark);
}

/* Partners Section */
.partners-section {
  background: var(--white);
}

.partner-logo {
  text-align: center;
  padding: var(--spacing-md);
  transition: var(--transition-normal);
  border-radius: var(--border-radius);
}

.partner-logo:hover {
  transform: scale(1.1);
}

.partner-logo img {
  max-width: 100%;
  height: auto;
  filter: grayscale(100%);
  transition: var(--transition-normal);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

.partner-logo:hover img {
  filter: grayscale(0%);
  box-shadow: var(--shadow-md);
}

/* Community Section */
.community-section {
  background: var(--gray-100);
}

.community-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.community-card:hover {
  transform: translateY(-10px) rotate(1deg);
  box-shadow: var(--shadow-xl);
}

.community-card .card-image {
  position: relative;
  overflow: hidden;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.community-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  margin: 20px;
  transition: var(--transition-normal);
}

.community-card:hover .card-image img {
  transform: scale(1.1);
}

.community-card .card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.community-card blockquote {
  font-style: italic;
  color: var(--gray-700);
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding: 0 var(--spacing-md);
}

.community-card blockquote::before {
  content: '"';
  font-size: 3rem;
  color: var(--primary-color);
  position: absolute;
  left: 0;
  top: -10px;
}

.community-card cite {
  font-weight: 600;
  color: var(--primary-color);
  font-style: normal;
}

/* Contact Section */
.contact-section {
  background: var(--white);
  position: relative;
}

.contact-form-wrapper {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.contact-form-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.form-label {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.form-control, .form-select {
  border: 2px solid var(--gray-300);
  border-radius: var(--border-radius);
  padding: 12px 16px;
  font-size: 1rem;
  transition: var(--transition-normal);
  background: var(--white);
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(255, 107, 53, 0.25);
  outline: none;
}

.contact-info {
  padding: var(--spacing-md);
  background: var(--gray-100);
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.contact-info h4 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

/* Footer */
.footer-main {
  background: var(--gray-900);
  color: var(--white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  position: relative;
}

.footer-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.footer-brand h5 {
  color: var(--white);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  color: var(--gray-400);
  margin-bottom: var(--spacing-md);
}

.footer-links h6 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links ul {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: var(--transition-normal);
}

.footer-links a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.footer-contact h6 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-contact p {
  color: var(--gray-400);
  margin-bottom: 8px;
}

.footer-contact a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-normal);
}

.footer-contact a:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-links a {
  color: var(--gray-400);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-normal);
  padding: 8px 16px;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
}

.social-links a:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
  text-decoration: none;
}

/* Страница успеха */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  padding: var(--spacing-lg);
}

.success-content {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  text-align: center;
  max-width: 500px;
  width: 100%;
}

.success-icon {
  font-size: 4rem;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-md);
}

/* Страницы с контентом */
.content-page {
  padding-top: 100px;
  min-height: 100vh;
}

.content-wrapper {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-lg);
}

/* Адаптивность */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .stats {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .social-links {
    justify-content: center;
  }
  
  .community-card .card-image img {
    margin: 10px;
  }
  
  .contact-form-wrapper {
    padding: var(--spacing-md);
  }
  
  .parallax-bg {
    background-attachment: scroll;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .price-tag .price {
    font-size: 1.5rem;
  }
  
  .feature-card .card-image {
    height: 200px;
  }
  
  .case-study-card .card-image {
    height: 200px;
  }
  
  .community-card .card-image {
    height: 200px;
  }
}

/* Улучшенная анимация прокрутки */
@media (prefers-reduced-motion: no-preference) {
  .animate-on-scroll {
    animation: fadeInUp 0.6s var(--transition-slow) forwards;
  }
  
  .animate-on-scroll:nth-child(even) {
    animation: fadeInLeft 0.6s var(--transition-slow) forwards;
  }
  
  .animate-on-scroll:nth-child(odd) {
    animation: fadeInRight 0.6s var(--transition-slow) forwards;
  }
}

/* Микроинтеракции */
.feature-card, .case-study-card, .community-card, .resource-card {
  cursor: pointer;
}

.feature-card:active, .case-study-card:active, .community-card:active {
  transform: scale(0.98);
}

/* Улучшенная типографика */
.lead {
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--gray-600);
}

.text-muted {
  color: var(--gray-500) !important;
}

.text-primary {
  color: var(--primary-color) !important;
}

.bg-primary {
  background: var(--gradient-primary) !important;
}

.bg-secondary {
  background: var(--gradient-secondary) !important;
}

/* Дополнительные утилиты */
.shadow-retro {
  box-shadow: var(--shadow-retro) !important;
}

.rounded-retro {
  border-radius: var(--border-radius-lg) !important;
}

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