:root {
    --color-primary: #0B1D26;
    --color-accent: #FBD784;
    --color-white: #FFFFFF;
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--color-primary);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
  }
  
  h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
  }
  
  /* Header */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 0;
    z-index: 1000;
    transition: var(--transition);
  }
  
  .header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
    text-decoration: none;
    position: relative;
    z-index: 1001;
  }
  
  .logo span {
    color: var(--color-accent);
  }
  
  .main-nav {
    display: flex;
    gap: 3rem;
  }
  
  .main-nav a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
  }
  
  .main-nav a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition);
  }
  
  .main-nav a:hover:after {
    width: 100%;
  }
  
  .mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 1001;
  }
  
  /* Hero Section */
  .hero {
    position: relative;
    height: 100vh;
    min-height: 800px;
    display: flex;
    align-items: center;
    overflow: hidden;
  }
  
  .hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(11, 29, 38, 0.7), rgba(11, 29, 38, 0.9)), url('https://экологический-туризм.рф/images/road2.jpg') no-repeat center center/cover;
    z-index: -2;
    transform: scale(1.1);
    transition: transform 10s ease-out;
  }
  
  .hero:hover .hero-bg {
    transform: scale(1);
  }
  
  .hero-content {
    max-width: 800px;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
  }
  
  .hero-subtitle {
    display: flex;
    align-items: center;
    font-size: 1.1rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 4px;
    margin-bottom: 2rem;
  }
  
  .hero-subtitle:before {
    content: '';
    display: block;
    width: 72px;
    height: 2px;
    background: var(--color-accent);
    margin-right: 24px;
  }
  
  .hero-title {
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 2rem;
    font-weight: 700;
    padding-bottom: 120px;
  }
  
  .hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
  }

  .hero-scroll:after {
    content: '';
    display: block;
    width: 16px;
    height: 24px;
    border: 2px solid var(--color-white);
    border-radius: 12px;
    margin-left: 12px;
    position: relative;
  }

  .hero-scroll:before {
    content: '';
    display: block;
    width: 4px;
    height: 8px;
    background: var(--color-white);
    border-radius: 2px;
    position: absolute;
    bottom: 34px;
    left: calc(50% - 2px);
    animation: scroll 2s infinite;
  }

  @keyframes scroll {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(10px); opacity: 0; }
  }

  /* Sections */
  .section {
    padding: 8rem 0;
    position: relative;
  }

  .section-number {
    position: absolute;
    top: -40px;
    left: 0;
    font-size: 15rem;
    font-weight: 700;
    color: rgba(251, 215, 132, 0.1);
    z-index: -1;
  }

  .section-header {
    display: flex;
    align-items: center;
    margin-bottom: 4rem;
  }

  .section-subtitle {
    display: flex;
    align-items: center;
    font-size: 1.1rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 4px;
  }

  .section-subtitle:before {
    content: '';
    display: block;
    width: 72px;
    height: 2px;
    background: var(--color-accent);
    margin-right: 24px;
  }

  .section-title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin: 1rem 0 2rem;
  }

  /* About Section */
  .about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
  }

  .about-image {
    position: relative;
    height: 500px;
    overflow: hidden;
    border-radius: 16px;
  }

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

  .about-image:hover img {
    transform: scale(1.05);
  }

  .about-text {
    padding-left: 2rem;
  }

  .facts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
  }

  .fact {
    text-align: center;
    padding: 2rem;
    background: rgba(251, 215, 132, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(251, 215, 132, 0.1);
    transition: var(--transition);
  }

  .fact:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
  }

  .fact strong {
    display: block;
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
  }

  /* Philosophy Section */
  .philosophy {
    background: linear-gradient(to bottom, rgba(11, 29, 38, 0.9), rgba(11, 29, 38, 0.7)), url('https://images.unsplash.com/photo-1467003909585-2f8a72700288?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1000&q=80') no-repeat center center/cover;
    background-attachment: fixed;
    padding: 10rem 0;
  }

  .philosophy-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
  }

  .philosophy-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
  }

  .philosophy-item {
    padding: 2rem;
    background: rgba(11, 29, 38, 0.8);
    border-radius: 16px;
    border: 1px solid rgba(251, 215, 132, 0.1);
    transition: var(--transition);
  }

  .philosophy-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
  }

  .philosophy-item h4 {
    color: var(--color-accent);
    margin-bottom: 1rem;
    font-size: 1.5rem;
  }

  /* Program Section */
  .program-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
  }

  .program-image {
    position: relative;
    height: 500px;
    overflow: hidden;
    border-radius: 16px;
  }

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

  .program-image:hover img {
    transform: scale(1.05);
  }

  .timeline {
    position: relative;
  }

  .timeline:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--color-accent);
  }

  .timeline-item {
    padding: 2rem 0 2rem 2rem;
    position: relative;
  }

  .timeline-item:before {
    content: '';
    position: absolute;
    left: -6px;
    top: 2.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-accent);
  }

  .timeline-date {
    font-size: 1.2rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    font-weight: 600;
  }

  .timeline-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }

  /* Speakers Section */
  .speakers {
    background: linear-gradient(to bottom, rgba(11, 29, 38, 0.9), rgba(11, 29, 38, 0.7)), url('https://images.unsplash.com/photo-1514933651103-005eec06c04b?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1000&q=80') no-repeat center center/cover;
    background-attachment: fixed;
    padding: 10rem 0;
  }

  .speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
  }

  .speaker {
    position: relative;
    height: 400px;
    overflow: hidden;
    border-radius: 16px;
    cursor: pointer;
  }

  .speaker img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }

  .speaker:hover img {
    transform: scale(1.1);
  }

  .speaker-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(transparent, rgba(11, 29, 38, 0.9));
    transition: var(--transition);
  }

  .speaker:hover .speaker-overlay {
    background: linear-gradient(transparent, var(--color-primary));
  }

  .speaker-name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }

  .speaker-role {
    color: var(--color-accent);
  }

  /* Partners Section */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 4rem;
  }
  
  .partner {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: auto;
    min-height: 320px;
    padding: 2rem;
    background: rgba(251, 215, 132, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(251, 215, 132, 0.1);
    transition: var(--transition);
    text-align: center;
    word-wrap: break-word;
    overflow: hidden;
    position: relative;
  }
  
  .partner:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    background: rgba(251, 215, 132, 0.08);
  }
  
  .partner img {
    max-width: 100%;
    max-height: 80px;
    width: auto;
    height: auto;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
    margin-bottom: 1.5rem;
    object-fit: contain;
  }
  
  .partner:hover img {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.05);
  }
  
  .partner h4 {
    color: var(--color-accent);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.3;
  }
  
  .partner p {
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.5;
    margin: 0 0 1.5rem 0;
    width: 100%;
    flex-grow: 1;
  }
  
  .part-link {
    padding-top: 1rem;
    color: #FBD784;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    margin-top: auto;
    border-top: 1px solid rgba(251, 215, 132, 0.2);
    width: 100%;
    padding: 1rem 0 0 0;
  }
  
  .part-link:hover {
    color: var(--color-white);
    text-decoration: underline;
  }
  
  /* Медиа-запросы для секции партнеров */
  @media (max-width: 1200px) {
    .partners-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }
  
  @media (max-width: 900px) {
    .partners-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 1.5rem;
    }
    
    .partner {
      padding: 1.5rem;
      min-height: 300px;
    }
    
    .partner img {
      max-height: 70px;
      margin-bottom: 1.2rem;
    }
    
    .partner h4 {
      font-size: 1.1rem;
      margin-bottom: 0.8rem;
    }
    
    .partner p {
      font-size: 0.85rem;
      margin-bottom: 1.2rem;
    }
    
    .part-link {
      padding-top: 0.8rem;
      font-size: 0.9rem;
    }
  }
  
  @media (max-width: 600px) {
    .partners-grid {
      grid-template-columns: 1fr;
      gap: 1.2rem;
      max-width: 400px;
      margin-left: auto;
      margin-right: auto;
    }
    
    .partner {
      padding: 1.5rem;
      min-height: auto;
      margin: 0 0.5rem;
    }
    
    .partner img {
      max-height: 60px;
      max-width: 90%;
      margin-bottom: 1rem;
    }
    
    .partner h4 {
      font-size: 1rem;
      margin-bottom: 0.8rem;
      padding: 0 0.5rem;
    }
    
    .partner p {
      font-size: 0.8rem;
      line-height: 1.4;
      padding: 0 0.5rem;
      margin-bottom: 1rem;
    }
    
    .part-link {
      font-size: 0.85rem;
      padding-top: 0.8rem;
    }
  }
  
  @media (max-width: 400px) {
    .partners-grid {
      gap: 1rem;
    }
    
    .partner {
      padding-top: 100px !important;
      padding-bottom: 110px !important;
      padding: 1.2rem;
      margin: 0 0.3rem;
    }
    
    .partner img {
      max-height: 50px;
      margin-bottom: 0.2rem;
    }
    
    .partner h4 {
      font-size: 0.75rem;
      padding: 0 0.3rem;
    }
    
    .partner p {
      font-size: 0.55rem;
      padding: 0 0.3rem;
      margin-bottom: 0.8rem;
    }
    
    .part-link {
      font-size: 0.8rem;
      padding-top: 0.7rem;
    }
  }
  
  /* Для логотипов с белым фоном */
  .partner img[src*="et-logo-new.svg"],
  .partner img[src*="logo-gm.png"] {
  
    padding: 0.5rem;
    border-radius: 8px;
  }
  
  /* Для прозрачных логотипов */
  .partner img[src*="887070_audio_512x512.png"],
  .partner img[src*="Hexagon-Company-Logo-Vector"] {
    
    padding: 0.8rem;
    border-radius: 12px;
  }

  /* Footer */
  .site-footer {
    background: rgba(11, 29, 38, 0.95);
    padding: 6rem 0 2rem;
    position: relative;
  }

  .footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
  }

  .footer-logo {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1.5rem;
  }

  .footer-logo span {
    color: var(--color-accent);
  }

  .footer-description {
    margin-bottom: 2rem;
    opacity: 0.7;
  }

  .footer-heading {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
  }

  .footer-links a {
    display: block;
    color: var(--color-white);
    text-decoration: none;
    margin-bottom: 1rem;
    transition: var(--transition);
    opacity: 0.7;
  }

  .footer-links a:hover {
    opacity: 1;
    color: var(--color-accent);
  }

  .footer-bottom {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.7;
  }

  /* ==================== */
  /* МЕДИА-ЗАПРОСЫ ДЛЯ МОБИЛЬНЫХ */
  /* ==================== */

  /* Планшеты и маленькие ноутбуки */
  @media (max-width: 1024px) {
    .hero-title {
      font-size: 4rem;
      padding-bottom: 120px;
    }
    
    .section-title {
      font-size: 3rem;
    }
    
    .about-content, .program-content {
      gap: 4rem;
    }
    
    .facts, .philosophy-list {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .speakers-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  /* Планшеты (портретная ориентация) */
  @media (max-width: 768px) {
    .container {
      padding: 0 1.5rem;
    }
    
    .hero-title {
      font-size: 3.5rem;
    }
    
    .section {
      padding: 6rem 0;
    }
    
    .section-title {
      font-size: 2.5rem;
    }
    
    .section-number {
      font-size: 10rem;
      top: -20px;
    }
    
    .about-content, .program-content {
      grid-template-columns: 1fr;
      gap: 3rem;
    }
    
    .about-image {
      height: 400px;
      order: -1;
    }
    
    .about-text {
      padding-left: 0;
    }
    
    .facts, .philosophy-list, .speakers-grid {
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }
    
    .fact {
      padding: 1.5rem;
    }
    
    .philosophy-item {
      padding: 1.5rem;
    }
    
    .program-image {
      height: 400px;
    }
    
    .timeline:before {
      left: 15px;
    }
    
    .timeline-item {
      padding: 2rem 0 2rem 3rem;
    }
    
    .timeline-item:before {
      left: 9px;
    }
    
    .footer-content {
      grid-template-columns: 1fr;
      gap: 3rem;
      text-align: center;
    }
  }

  /* Мобильные устройства */
  @media (max-width: 480px) {
    .container {
      padding: 0 1rem;
    }
    
    .header-inner {
      padding: 0 1rem;
    }
    
    .logo {
      font-size: 1.5rem;
    }
    
    .main-nav {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      background: var(--color-primary);
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 2rem;
      z-index: 999;
    }
    
    .main-nav.active {
      display: flex;
    }
    
    .mobile-menu-btn {
      display: block;
      z-index: 1000;
    }
    
    .hero {
      min-height: 600px;
    }
    
    .hero-content {
      padding: 0 1rem;
    }
    
    .hero-title {
      font-size: 2.5rem;
    }
    
    .hero-subtitle {
      font-size: 0.9rem;
      letter-spacing: 2px;
    }
    
    .hero-subtitle:before {
      width: 40px;
      margin-right: 15px;
    }
    
    .section {
      padding: 4rem 0;
    }
    
    .section-title {
      font-size: 2rem;
    }
    
    .section-number {
      font-size: 8rem;
    }
    
    .about-image, .program-image {
      height: 300px;
    }
    
    .fact strong {
      font-size: 2.5rem;
    }
    
    .speaker {
      height: 350px;
    }
    
    .partner {
      height: 120px;
      padding: 1rem;
    }
    
    .footer-content {
      gap: 2rem;
    }
    
    .footer-logo {
      font-size: 1.5rem;
    }
  }

  /* Очень маленькие устройства */
  @media (max-width: 360px) {
    .hero-title {
      font-size: 2rem;
    }
    
    .section-title {
      font-size: 1.8rem;
    }
    
    .hero-subtitle:before {
      width: 30px;
    }
    
    .facts, .philosophy-list {
      gap: 1rem;
    }
    
    .fact, .philosophy-item {
      padding: 1rem;
    }
  }