@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #0A0B14;
  --text-primary: #F5F5F7;
  --text-secondary: #A1A1A6;
  --accent: #00D1FF;
  --accent-dark: #0098C3;
  --secondary-accent: #FF2D55;
  --whatsapp-accent: #25D366;
  --whatsapp-accent-dark: #1DA851;
  --radius: 12px;
  --shadow-light: rgba(0, 122, 255, 0.2);
  --shadow-subtle: rgba(0, 122, 255, 0.1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: 'Inter', system-ui, sans-serif;
  --font-text: 'Inter', system-ui, sans-serif;
  --card-bg: #14151F;
  --error: #FF5555;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  font-family: var(--font-text);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a:hover, a:focus {
  color: var(--accent-dark);
  outline: none;
}

header {
  position: relative;
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  text-align: center;
  background: linear-gradient(180deg, rgba(10, 11, 20, 0.8), rgba(10, 11, 20, 0.9)), url('https://bayerservice.ru/images/image12.png') center/cover no-repeat;
  overflow: hidden;
  transform: translateZ(0);
  will-change: transform;
}

header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 209, 255, 0.1), rgba(10, 11, 20, 0.7));
  z-index: 0;
}

header > * {
  position: relative;
  max-width: 720px;
  z-index: 1;
  color: var(--text-primary);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.4));
}

header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
  transform: translateY(20px);
  animation: slideIn 0.8s ease-out forwards;
}

header p {
  font-family: var(--font-text);
  font-weight: 400;
  font-size: clamp(1.125rem, 3.5vw, 1.5rem);
  color: var(--text-secondary);
  margin-bottom: 2rem;
  letter-spacing: 0.01em;
  transform: translateY(20px);
  animation: slideIn 0.8s ease-out 0.2s forwards;
}

@keyframes slideIn {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.button {
  font-family: var(--font-text);
  font-weight: 600;
  font-size: 1.25rem;
  padding: 16px 40px;
  border-radius: var(--radius);
  background: linear-gradient(45deg, var(--accent), var(--secondary-accent));
  color: #fff;
  box-shadow: 0 4px 16px var(--shadow-light);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), outline var(--transition);
  text-decoration: none;
  display: inline-block;
  position: relative;
  overflow: hidden;
}

.button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.button:hover::before, .button:focus::before {
  left: 100%;
}

.button:hover, .button:focus {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px var(--shadow-light);
  outline: 1px solid var(--accent);
  outline-offset: 1px;
  color: #fff;
}

button[type="submit"] {
  font-size: 1.125rem;
  padding: 14px 0;
}

button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  position: relative;
}

button[type="submit"]:disabled::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid #fff;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  position: absolute;
  right: 1rem;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

main {
  max-width: 1080px;
  margin: 5rem auto;
  padding: 0 24px;
}

section {
  margin-bottom: 6rem;
}

section h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 2.75rem;
  margin-bottom: 2.5rem;
  color: var(--text-primary);
  text-align: center;
  letter-spacing: -0.02em;
  position: relative;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  width: 60px;
  height: 3px;
  background: var(--accent);
  transform: translateX(-50%);
}

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

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid rgba(0, 209, 255, 0.1);
  box-shadow: 0 6px 20px var(--shadow-subtle);
  padding: 2rem 2rem 2rem 4rem;
  font-family: var(--font-text);
  font-weight: 500;
  font-size: 1.125rem;
  color: var(--text-primary);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.card::before {
  content: attr(data-number);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--accent);
  width: 2rem;
  flex-shrink: 0;
  opacity: 0;
  transform: translateX(-10px);
  animation: slideInNumber 0.5s ease-out forwards;
  animation-delay: calc(0.2s * var(--card-index));
}

@keyframes slideInNumber {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 32px var(--shadow-light);
  border-color: var(--accent);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 24px var(--shadow-subtle);
  font-family: var(--font-text);
  font-size: 1rem;
  background: var(--card-bg);
}

thead {
  background: #1A1B26;
}

th, td {
  padding: 1.5rem;
  text-align: center;
  font-weight: 400;
  color: var(--text-primary);
  border-bottom: 1px solid rgba(0, 209, 255, 0.1);
  word-break: break-word;
  min-width: 300px;
}

th {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}

td:nth-child(2) {
  color: var(--accent);
  font-weight: 500;
}

tbody tr:nth-child(even) {
  background: #1E1F2A;
}

tbody tr:hover {
  background: rgba(0, 209, 255, 0.1);
}

.scroll-hint {
  display: none;
  font-family: var(--font-text);
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.5s ease-out forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.price-note {
  font-family: var(--font-text);
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 1.5rem;
  line-height: 1.6;
}

.price-note a {
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.price-note a:hover, .price-note a:focus {
  border-color: var(--accent);
}

form {
  background: var(--card-bg);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px var(--shadow-subtle);
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-message {
  font-family: var(--font-text);
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 0.5rem;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition);
}

.form-message.show {
  opacity: 1;
  transform: translateY(0);
}

.form-message.error {
  color: var(--error);
}

label {
  font-family: var(--font-text);
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

input[type="text"], input[type="tel"], textarea {
  font-family: var(--font-text);
  font-weight: 400;
  font-size: 1rem;
  padding: 1rem;
  border: 1px solid rgba(0, 209, 255, 0.2);
  border-radius: 8px;
  color: var(--text-primary);
  background: #1E1F2A;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

input[type="text"]:focus, input[type="tel"]:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--shadow-light);
  outline: none;
}

input[type="tel"].invalid {
  border-color: var(--error);
  box-shadow: 0 0 8px rgba(255, 85, 85, 0.3);
}

footer {
  background: var(--bg);
  color: var(--text-secondary);
  text-align: center;
  padding: 4rem 1rem;
  font-family: var(--font-text);
  font-size: 0.875rem;
  line-height: 1.6;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

footer .footer-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

footer img {
  width: 20px;
  height: 20px;
}

footer a {
  color: var(--accent);
  border-bottom: 1px solid transparent;
}

footer a:hover, footer a:focus {
  border-bottom: 1px solid var(--accent);
}

footer .attribution {
  font-size: 0.75rem;
  color: var(--text-secondary);
  width: 100%;
  margin-top: 1rem;
}

.chat-widget {
  position: fixed;
  right: 16px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px var(--shadow-light);
  cursor: pointer;
  transition: width var(--transition), transform var(--transition), box-shadow var(--transition);
  user-select: none;
  font-family: var(--font-text);
  font-weight: 500;
  font-size: 1rem;
  will-change: opacity, transform, width;
  touch-action: manipulation;
}

#whatsapp-widget {
  bottom: calc(150px + 56px + 16px + env(safe-area-inset-bottom));
  background: var(--whatsapp-accent);
  color: white;
  z-index: 9999;
}

#telegram-widget {
  bottom: calc(150px + env(safe-area-inset-bottom));
  background: var(--accent);
  color: white;
  z-index: 9998;
}

.chat-widget.show {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.chat-widget:hover, .chat-widget:focus {
  width: 150px;
  border-radius: 24px;
  transform: translateX(-10px);
  box-shadow: 0 0 12px var(--accent);
}

#whatsapp-widget:hover, #whatsapp-widget:focus {
  box-shadow: 0 0 12px var(--whatsapp-accent);
}

.chat-widget-close {
  position: absolute;
  top: -8px;
  right: -8px;
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  font-size: 0.75rem;
  padding: 4px;
  cursor: pointer;
  display: none;
  color: white;
}

#whatsapp-widget .chat-widget-close {
  background: var(--whatsapp-accent-dark);
}

#telegram-widget .chat-widget-close {
  background: var(--accent-dark);
}

.chat-widget:hover .chat-widget-close, .chat-widget:focus .chat-widget-close {
  display: block;
}

.chat-widget img {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.chat-widget span {
  display: none;
  opacity: 0;
  transition: opacity var(--transition);
}

.chat-widget:hover span, .chat-widget:focus span {
  display: inline;
  opacity: 1;
}

.chat-widget:hover::after, .chat-widget:focus::after {
  content: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 600px) {
  header {
    background: linear-gradient(180deg, rgba(10, 11, 20, 0.8), rgba(10, 11, 20, 0.9)), url('https://bayerservice.ru/images/image12-lowres.webp') center/cover no-repeat, url('https://bayerservice.ru/images/image12.png') center/cover no-repeat;
  }
  header h1 {
    font-size: clamp(2rem, 6vw, 3rem);
    padding-left: 16px;
    padding-right: 16px;
  }
  header p {
    font-size: 1rem;
    padding-left: 16px;
    padding-right: 16px;
  }
  .button {
    padding: 12px 24px;
    font-size: 1rem;
  }
  .button:hover, .button:focus {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px var(--shadow-light);
    outline: none;
    color: #fff;
  }
  main {
    padding: 0 16px;
  }
  section h2 {
    font-size: 2rem;
  }
  .grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .card {
    padding: 1.5rem 1.5rem 1.5rem 3.5rem;
    font-size: 1rem;
  }
  .card::before {
    font-size: 1.25rem;
  }
  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
    font-size: 0.875rem;
    box-shadow: inset 12px 0 12px -12px rgba(0, 0, 0, 0.4), inset -12px 0 12px -12px rgba(0, 0, 0, 0.4);
  }
  th, td {
    padding: 1rem;
    min-width: 180px;
  }
  form {
    padding: 2rem;
    margin: 0 12px;
  }
  input[type="text"], input[type="tel"], textarea {
    padding: 0.875rem;
    font-size: 0.95rem;
  }
  footer {
    padding: 3rem 1rem;
    flex-direction: column;
    gap: 1.5rem;
  }
  .chat-widget {
    right: 16px;
    padding: 0.625rem;
    font-size: 0.95rem;
    width: 56px;
    height: 56px;
    border-radius: 28px;
  }
  .chat-widget:hover, .chat-widget:focus {
    width: 56px;
    border-radius: 28px;
    transform: translateY(-2px);
  }
  .chat-widget:hover span, .chat-widget:focus span {
    display: none;
  }
  .chat-widget img {
    width: 24px;
    height: 24px;
  }
  #whatsapp-widget {
    bottom: calc(150px + 56px + 16px + env(safe-area-inset-bottom));
  }
  #telegram-widget {
    bottom: calc(150px + env(safe-area-inset-bottom));
  }
  .price-note {
    font-size: 0.85rem;
    margin-top: 1rem;
  }
}