/* ==========================================
   ГЛОБАЛЬНЫЕ НАСТРОЙКИ И ПЕРЕМЕННЫЕ
========================================== */
:root {
  --color-barsik: #ff9f43;
  --color-grey: #a4b0be;
  --bg-dark: #0f0f0f;
  --card-bg: #1a1a1a;
  --accent-gradient: linear-gradient(135deg, #ff9f43, #ff4757);
}

/* Железное правило адаптива: отступы и рамки включены в ширину элемента */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
  overflow-x: hidden; /* Защита от случайной горизонтальной прокрутки */
}

body {
  margin: 0;
  padding: 0;
  font-family: "Montserrat", sans-serif;
  background-color: var(--bg-dark);
  color: #fff;
  overflow-x: hidden;
}

/* ==========================================
   HEADER И НАВИГАЦИЯ
========================================== */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 5%;
  background: rgba(15, 15, 15, 0.9);
  backdrop-filter: blur(15px);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
  font-size: 1.4rem;
  font-weight: 900;
  text-transform: uppercase;
}
.name-barsik {
  color: var(--color-barsik);
}

nav {
  display: flex;
  align-items: center;
}

.nav-link {
  color: #fff;
  text-decoration: none;
  margin-left: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  opacity: 0.7;
  transition: 0.3s;
}
.nav-link:hover {
  opacity: 1;
  color: var(--color-barsik);
}

/* КНОПКА СВЯЗИ */
.contact-btn {
  display: inline-block;
  border: 2px solid var(--color-barsik);
  color: var(--color-barsik);
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: 30px;
  transition: all 0.3s ease;
  letter-spacing: 1px;
}
.contact-btn:hover {
  background: var(--color-barsik);
  color: #000;
  box-shadow: 0 5px 15px rgba(255, 159, 67, 0.3);
}
.header-contact-btn {
  padding: 8px 18px;
  font-size: 0.75rem;
  margin-right: 15px;
}

/* ==========================================
   ГЛАВНЫЙ ЭКРАН (HERO)
========================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 5% 50px; /* Запас сверху для хедера */
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(rgba(15, 15, 15, 0.7), rgba(15, 15, 15, 0.95)),
    url("../images/barsik-bg.jpg") center/cover;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 800px;
}

/* Использование clamp позволяет шрифту плавно уменьшаться на мобильных */
h1 {
  font-size: clamp(2rem, 6vw, 4.5rem);
  font-weight: 900;
  margin: 15px 0;
  line-height: 1.1;
}
h1 span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: clamp(1rem, 3vw, 1.1rem);
  max-width: 650px;
  margin: 0 auto 30px;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 400;
  line-height: 1.5;
}

/* ==========================================
   ЦЕНЫ И КНОПКА ОПЛАТЫ
========================================== */
.price-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 25px;
  width: 100%;
}

.payment-btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 20px 50px;
  background: var(--accent-gradient);
  color: #fff;
  text-decoration: none;
  font-weight: 900;
  font-size: 1.2rem;
  text-transform: uppercase;
  border-radius: 50px;
  box-shadow: 0 10px 25px rgba(255, 159, 67, 0.4);
  transition: 0.3s;
}
.payment-btn:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 20px 40px rgba(255, 159, 67, 0.6);
}

.multi-currency-prices {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-top: 15px;
  font-size: 1.1rem;
  font-weight: 700;
  flex-wrap: wrap;
}
.price-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.3);
  padding: 5px 15px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.price-divider {
  color: rgba(255, 255, 255, 0.2);
  font-weight: 300;
}
.base-price {
  transition: all 0.3s ease;
  color: #fff;
}
.base-price.crossed {
  text-decoration: line-through;
  opacity: 0.4;
  font-size: 0.9em;
}
.promo-price {
  color: #2ecc71;
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.promo-price.show {
  max-width: 100px;
  opacity: 1;
}

/* ПРОМОКОД */
.promo-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.promo-input-group {
  display: flex;
  gap: 10px;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 400px;
}
#promoInput {
  flex: 1;
  padding: 15px 20px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.5);
  color: white;
  font-family: "Montserrat", sans-serif;
  outline: none;
  transition: 0.3s;
  font-size: 0.95rem;
}
#promoInput:focus {
  border-color: var(--color-barsik);
  background: rgba(0, 0, 0, 0.8);
}
.promo-btn {
  padding: 15px 25px;
  border-radius: 30px;
  border: none;
  background: #222;
  color: white;
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
  cursor: pointer;
  transition: 0.3s;
  font-size: 0.9rem;
  white-space: nowrap;
}
.promo-btn:hover {
  background: var(--color-barsik);
  color: #000;
}
.promo-message {
  font-size: 0.85rem;
  font-weight: 700;
  margin-top: 10px;
  min-height: 20px;
  transition: 0.3s;
  text-align: center;
}
.promo-success {
  color: #2ecc71;
}
.promo-error {
  color: #ff4757;
}

/* ПРЫГАЮЩАЯ СТРЕЛКА */
.scroll-down-btn {
  display: inline-block;
  margin-top: 40px;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: 0.3s;
  animation: bounce 2s infinite;
}
.scroll-down-btn i {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 5px;
  color: var(--color-barsik);
}
.scroll-down-btn:hover {
  color: #fff;
}
@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* ==========================================
   ОБЩИЕ СЕКЦИИ И ВИДЕО
========================================== */
.section-padding {
  padding: 100px 5%;
  text-align: center;
}
.section-title {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 900;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.section-title span {
  color: var(--color-barsik);
}

.showcase-wrapper {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(255, 159, 67, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: #000;
  font-size: 0;
  line-height: 0;
  display: flex;
}
.showcase-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
}

/* ==========================================
   СЕКЦИЯ "О КУРСЕ"
========================================== */
.about-section {
  background: #0c0c0c;
  border-top: 1px solid #1a1a1a;
  border-bottom: 1px solid #1a1a1a;
}
.about-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: left;
}
.about-text {
  flex: 1.2;
}
.about-text p {
  font-size: 1.1rem;
  color: #bbb;
  line-height: 1.8;
  margin-bottom: 30px;
}
.about-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.about-list li {
  margin-bottom: 25px;
  font-size: 1.05rem;
  color: #e0e0e0;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  line-height: 1.5;
}
.about-list i {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  color: var(--color-barsik);
  font-size: 1.3rem;
  background: rgba(255, 159, 67, 0.1);
  border-radius: 50%;
}
.about-list span {
  flex: 1;
  padding-top: 12px;
}
.about-image {
  flex: 1;
  text-align: center;
  width: 100%;
}
.about-image picture {
  display: block;
  width: 100%;
}
.about-image img {
  width: 100%;
  max-width: 450px;
  border-radius: 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  border: 2px solid rgba(255, 159, 67, 0.2);
  transform: rotate(2deg);
  transition: 0.3s;
  display: inline-block;
}
.about-image img:hover {
  transform: rotate(0deg) scale(1.02);
  border-color: var(--color-barsik);
}

/* ==========================================
   СЛАЙДЕР ОТЗЫВОВ
========================================== */
.reviews-bg {
  background: #0a0a0a;
}
.slider-container {
  position: relative;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.slide {
  display: none;
  padding: 50px 40px;
  background: var(--card-bg);
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.slide.active {
  display: block;
  animation: fadeIn 0.5s ease-in-out;
}
.text-only-review {
  position: relative;
  text-align: center;
}
.quote-icon {
  font-size: 2.5rem;
  color: rgba(255, 159, 67, 0.15);
  margin-bottom: 20px;
  display: block;
}
.text-only-review p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: #e0e0e0;
  margin-bottom: 30px;
  font-style: italic;
  font-weight: 400;
}
.text-only-review h3 {
  color: var(--color-barsik);
  margin: 0;
  font-size: 1.2rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.slider-controls {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 15px;
}
.slider-controls button {
  background: none;
  border: 2px solid var(--color-barsik);
  color: #fff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  transition: 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.slider-controls button:hover {
  background: var(--color-barsik);
  color: #000;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ==========================================
   ФУТЕР
========================================== */
footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 5%;
  background: #050505;
  text-align: center;
  border-top: 1px solid #111;
}
.footer-contact-btn {
  padding: 12px 30px;
  font-size: 0.9rem;
  margin-bottom: 30px;
}
.social-icons {
  margin-bottom: 20px;
  display: flex;
  gap: 30px;
  justify-content: center;
}
.social-icons a {
  color: #fff;
  font-size: 2rem;
  transition: 0.3s;
  opacity: 0.6;
}
.social-icons a:hover {
  color: var(--color-barsik);
  opacity: 1;
  transform: translateY(-5px);
}
.copyright {
  font-size: 0.8rem;
  color: #444;
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.5;
}

/* ==========================================
   АДАПТИВНОСТЬ (МЕДИА-ЗАПРОСЫ)
========================================== */

/* Планшеты и небольшие ноутбуки (до 950px) */
@media (max-width: 950px) {
  header {
    flex-direction: column;
    gap: 15px;
    padding: 15px 5%;
  }
  nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    width: 100%;
  }
  .nav-link {
    margin-left: 0;
  }
  .header-contact-btn {
    order: -1;
    width: 100%;
    text-align: center;
    margin-right: 0;
    margin-bottom: 5px;
  }

  .about-container {
    flex-direction: column;
    text-align: center;
    gap: 40px;
  }
  .about-text h2 {
    text-align: center !important;
  }
  .about-list li {
    text-align: left;
  }
  .about-image img {
    transform: rotate(0deg);
    max-width: 100%;
    width: 100%;
  }
}

/* Большие телефоны (до 768px) */
@media (max-width: 768px) {
  .section-padding {
    padding: 60px 5%;
  }

  .payment-btn {
    width: 100%;
    padding: 18px 20px;
    font-size: 1.1rem;
  }

  .slide {
    padding: 30px 20px;
  }
  .text-only-review p {
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 20px;
  }
  .quote-icon {
    font-size: 2rem;
    margin-bottom: 15px;
  }

  .promo-input-group {
    flex-direction: column;
  }
  #promoInput,
  .promo-btn {
    width: 100%;
    text-align: center;
  }
}

/* Маленькие телефоны (до 480px) */
@media (max-width: 480px) {
  .logo {
    font-size: 1.2rem;
  }
  nav {
    gap: 10px;
  }
  .nav-link {
    font-size: 0.7rem;
  }

  .multi-currency-prices {
    flex-direction: column;
    gap: 10px;
  }
  .price-divider {
    display: none; /* Убираем точки между ценами на мобилке */
  }
  .price-item {
    width: 100%;
    justify-content: center;
  }

  .about-list i {
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }
  .about-list span {
    font-size: 0.95rem;
    padding-top: 10px;
  }

  .footer-contact-btn {
    width: 100%;
    text-align: center;
    padding: 12px 15px;
  }
}