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

:root {
  --primary: #8a2be2;
  --primary-dark: #6a1cb2;
  --secondary: #00f5ff;
  --accent: #ff6bff;
  --dark: #1a1a2e;
  --dark-2: #16213e;
  --light: #f8f9fa;
  --gray: #6c757d;
  --success: #28a745;
  --danger: #dc3545;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.3);
}

body {
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--light);
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  overflow-x: hidden;
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
}
h2 {
  font-size: 2.5rem;
  font-weight: 700;
}
h3 {
  font-size: 1.75rem;
  font-weight: 600;
}
p {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

/* Шапка */
header {
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  padding: 1rem 2rem;
  width: 100%;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(138, 43, 226, 0.3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.logo {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

nav ul {
  display: flex;
  list-style: none;
}

nav ul li {
  margin-left: 2.5rem;
}

nav ul li a {
  text-decoration: none;
  color: var(--light);
  font-weight: 500;
  position: relative;
  transition: var(--transition);
}

nav ul li a:hover {
  color: var(--secondary);
}

nav ul li a::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--secondary);
  transition: var(--transition);
}

nav ul li a:hover::after {
  width: 100%;
}

.contact-btn,
.info-btn {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.contact-btn:hover,
.info-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* Основное содержимое */
main {
  margin-top: 100px;
  padding: 3rem 5%;
}

.section {
  margin-bottom: 4rem;
  padding: 3rem;
  background: rgba(30, 30, 50, 0.7);
  border-radius: 20px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(138, 43, 226, 0.2);
  backdrop-filter: blur(10px);
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.section.fade-in {
  opacity: 1;
  transform: translateY(0);
}

/* Главная страница */
.digital-look {
  text-align: center;
  padding: 5rem 0;
}

.digital-look h1 {
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.example {
  text-align: center;
  padding: 2rem;
  background: rgba(40, 40, 60, 0.6);
  border-radius: 15px;
  transition: var(--transition);
  border: 1px solid rgba(138, 43, 226, 0.3);
}

.example:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.try-on-container {
  position: relative;
  display: inline-block;
  margin: 0 auto;
  text-align: left;
}

.before-img,
.after-img {
  width: 1280px;
  height: 720px;
  object-fit: cover;
  border-radius: 15px;
  transition: opacity 0.8s ease;
}

.after-img {
  position: absolute;
  top: 0;
  left: 0;
  opacity: 0;
}

.try-on-container:hover .after-img {
  opacity: 1;
}

.order-process {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 2rem;
}

.order-step {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.5rem;
}

.brand-logos {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
}

.brand-logo {
  font-size: 2rem;
  color: var(--secondary);
  opacity: 0.7;
  transition: var(--transition);
}

.brand-logo:hover {
  opacity: 1;
  color: var(--accent);
}

/* Страница товаров */
.filter {
  text-align: center;
}

.filter button {
  background: rgba(40, 40, 60, 0.6);
  color: var(--light);
  border: 1px solid rgba(138, 43, 226, 0.3);
  padding: 0.75rem 1.5rem;
  margin: 0 0.5rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
}

.filter button.active {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-color: transparent;
}

.product-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
}

.product-card {
  border: none;
  padding: 0;
  text-align: center;
  transition: var(--transition);
  background: rgba(40, 40, 60, 0.6);
  border-radius: 15px;
  overflow: hidden;
  border: 1px solid rgba(138, 43, 226, 0.2);
}

.product-card:hover {
  transform: translateY(-15px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.product-card img {
  width: 200px;
  height: 300px;
  object-fit: cover;
}

.product-card h3 {
  margin: 1rem 0 0.5rem;
}

.product-card p {
  color: var(--gray);
  margin-bottom: 1rem;
}

/* Карточка товара */
.product-details {
  display: flex;
  gap: 3rem;
  align-items: start;
}

.product-images {
  flex: 1;
}

.product-info {
  flex: 1;
}

.product-gallery {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.thumbnails {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.thumbnails img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 8px;
  transition: var(--transition);
}

.thumbnails img.active {
  border-color: var(--primary);
  transform: scale(1.05);
}

/* Форма */
form {
  display: grid;
  gap: 1.5rem;
  max-width: 500px;
  margin: 0 auto;
}

input,
textarea {
  padding: 1rem;
  border: 1px solid rgba(138, 43, 226, 0.3);
  background: rgba(40, 40, 60, 0.6);
  border-radius: 10px;
  color: var(--light);
  transition: var(--transition);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(138, 43, 226, 0.3);
}

button[type="submit"] {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

button[type="submit"]:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.form-message {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 10px;
  text-align: center;
  font-weight: 500;
}

.success {
  background: rgba(40, 167, 69, 0.2);
  color: var(--success);
  border: 1px solid rgba(40, 167, 69, 0.3);
}

.error {
  background: rgba(220, 53, 69, 0.2);
  color: var(--danger);
  border: 1px solid rgba(220, 53, 69, 0.3);
}

/* Подвал */
footer {
  background: rgba(26, 26, 46, 0.95);
  padding: 3rem 5%;
  text-align: center;
  border-top: 1px solid rgba(138, 43, 226, 0.3);
}

.copyright {
  margin-bottom: 1rem;
  color: var(--gray);
}

.slogan {
  font-size: 1.5rem;
  background: linear-gradient(90deg, var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: white;
  border: none;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

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

.floating {
  animation: float 6s ease-in-out infinite;
}

/* Адаптивность */
@media (max-width: 1024px) {
  :root {
    --font-size-base: 14px;
  }

  header {
    padding: 1rem 2rem;
  }

  .logo {
    font-size: 1rem;
  }

  nav ul li {
    margin-left: 1.5rem;
  }

  main {
    margin-top: 80px;
    padding: 2rem 3%;
  }

  .section {
    padding: 2rem;
  }
}

@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

  nav ul li {
    margin: 0 0.5rem;
  }

  .product-details {
    flex-direction: column;
  }

  .order-step {
    flex-direction: column;
    text-align: center;
  }

  .step-number {
    margin-bottom: 1rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.5rem;
  }
  h2 {
    font-size: 2rem;
  }
  h3 {
    font-size: 1.5rem;
  }

  .application-grid,
  .product-list {
    grid-template-columns: 1fr;
  }

  .brand-logos {
    flex-direction: column;
    gap: 1rem;
  }
}

.buy-btn {
  display: inline-block;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  margin-top: 1rem;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
  box-shadow: var(--shadow);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.buy-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  transition: var(--transition);
  z-index: -1;
}

.buy-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.buy-btn:hover::before {
  left: 0;
}

.buy-btn:active {
  transform: translateY(-1px);
}

/* Стиль для добавленного в корзину состояния */
.buy-btn.added {
  background: linear-gradient(90deg, var(--success), #2ecc71);
  animation: pulse 0.5s ease;
}

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

/* Адаптивность для мобильных */
@media (max-width: 768px) {
  .buy-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
    margin-top: 0.8rem;
  }
}

@media (max-width: 480px) {
  .buy-btn {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    margin-top: 0.5rem;
  }
}