:root {
  --accent-yellow: #FFD700;
  --dark-green: #2E8B57;
  --graphite: #36454F;
  --white: #FFFFFF;
  --text-dark: #1A1A1A;
  --overlay: rgba(0, 0, 0, 0.55);
}

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

body {
  font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background-color: var(--white);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Главный экран с фоновым фото */
.hero-bg {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  background-image: url('/assets/images/hero-cyclists.jpg'); /* путь к картинке */
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--overlay);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px;
  text-align: center;
  color: var(--white);
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 32px;
  opacity: 0.95;
}

.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--accent-yellow);
  color: var(--graphite);
  font-weight: 600;
  border-radius: 50px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.3);
}

/* Шапка сайта (фиксированная) */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(54, 69, 79, 0.15);
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark-green);
  text-transform: uppercase;
}

.nav-links { display: flex; gap: 30px; }
.nav-links a {
  color: var(--graphite);
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent-yellow); }

/* Секции */
section { padding: 60px 20px; }
h2 {
  font-size: 2.4rem;
  text-align: center;
  margin-bottom: 48px;
  color: var(--graphite);
}

/* Карточки маршрутов */
.cards-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(0,0,0,0.08);
  transition: transform 0.25s;
}
.card:hover { transform: translateY(-6px); }
.card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.card-body { padding: 24px; }
.card-title {
  font-size: 1.35rem;
  margin-bottom: 8px;
  color: var(--dark-green);
}
.card-text { color: #555; margin-bottom: 20px; }
.card-btn {
  display: block;
  width: 100%;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--dark-green);
  color: var(--dark-green);
  text-align: center;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.2s;
}
.card-btn:hover { background: var(--dark-green); color: var(--white); }

/* Преимущества */
.features-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.feature-item {
  text-align: center;
  padding: 30px 16px;
  background: #F9F9F9;
  border-radius: 10px;
}
.feature-icon { font-size: 2rem; margin-bottom: 16px; color: var(--accent-yellow); }
.feature-title { font-weight: 700; margin-bottom: 8px; color: var(--graphite); }

/* Подписка */
.newsletter {
  background: var(--graphite);
  color: var(--white);
  text-align: center;
  padding: 50px 20px;
}
.newsletter h3 { margin-bottom: 20px; color: var(--white); }
.newsletter-form {
  display: flex;
  flex-direction: column;
  max-width: 500px;
  margin: 0 auto;
  gap: 12px;
}
.newsletter input[type="email"] {
  padding: 14px;
  border-radius: 8px;
  border: none;
  outline: none;
}
.newsletter button {
  padding: 14px;
  background: var(--accent-yellow);
  color: var(--graphite);
  border: none;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
}
.newsletter button:hover { background: #e6c100; }

footer {
  background: #111;
  color: #ccc;
  padding: 40px 20px;
  text-align: center;
}
footer p { margin-bottom: 8px; }

@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .nav-links { display: none; /* здесь позже можно подключить JS-меню */ }
  .nav-container { justify-content: center; }
}

/* Чат MAX — контейнер */
.chat-max-section {
  background: #f5f7fa;
  padding: 50px 20px;
  border-top: 1px solid #e0e0e0;
}

.chat-max-wrapper {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 30px;
}

@media (max-width: 768px) {
  .chat-max-wrapper {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* Заголовок секции */
.chat-max-title {
  font-size: 2.2rem;
  text-align: center;
  color: var(--graphite);
  margin-bottom: 32px;
}

/* Левая часть: описание и призыв */
.chat-desc {
  text-align: center;
}

.chat-desc p {
  color: #555;
  margin-bottom: 24px;
}

.btn-chat {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--accent-yellow);
  color: var(--graphite);
  font-weight: 700;
  border-radius: 50px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn-chat:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.2);
}

/* Правая часть: имитация окна чата */
.chat-window {
  background: var(--white);
  border: 1px solid #d0d0d0;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  height: 420px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.chat-header {
  padding: 12px 16px;
  background: #fafafa;
  border-bottom: 1px solid #eee;
  display: flex;
  align-items: center;
  gap: 10px;
}

.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--dark-green);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.chat-info h4 {
  margin: 0;
  font-size: 1rem;
  color: var(--text-dark);
}

.chat-info span {
  font-size: 0.8rem;
  color: #888;
}

.chat-body {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 10px;
  line-height: 1.4;
  font-size: 0.95rem;
}

.msg.user {
  align-self: flex-end;
  background: var(--accent-yellow);
  color: var(--graphite);
  border-bottom-right-radius: 2px;
}

.msg.system {
  align-self: flex-start;
  background: #eef6e9;
  color: #222;
  border-bottom-left-radius: 2px;
}

.chat-input-area {
  padding: 12px 16px;
  border-top: 1px solid #eee;
  display: flex;
  gap: 8px;
}

.chat-input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  outline: none;
}

.chat-send {
  padding: 10px 16px;
  background: var(--dark-green);
  color: var(--white);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

.chat-send:hover {
  background: #227b46;
}