:root {

  --black: #000000;
  --white: #ffffff;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;

  /* Red accent palette (single chromatic accent in monochrome system).
     Use for primary CTA, status badges (busy/replaced/important),
     notifications, indicators. */
  --red-50:  #fff1f2;
  --red-100: #ffe3e5;
  --red-200: #fbc4c8;
  --red-300: #f49aa0;
  --red-400: #ee6e77;
  --red-500: #e63946;
  --red-600: #c5202e;
  --red-700: #9e1923;
  --red-800: #74131a;
  --red-900: #4a0c11;

  --accent:        var(--red-500);
  --accent-hover:  var(--red-600);
  --accent-active: var(--red-700);
  --accent-soft:   var(--red-50);
  --accent-border: var(--red-200);


  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 3px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.2);
  

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  

  --success: var(--gray-600);
  --warning: var(--accent);
  --error: var(--red-600);
  --info: var(--gray-400);
  
  /* Типографика */
  --font-mono: 'Space Mono', monospace;
  --font-sans: 'Inter', sans-serif;
  
  /* Размеры и спейсинг */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
}

/* Сброс стилей */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  line-height: 1.5;
  color: var(--black);
  background-color: var(--white);
  position: relative;
  overflow-x: hidden;
}

/* Используем стандартный курсор */
/* Стили для указателей на интерактивных элементах */
a, button, input[type="submit"], .btn {
  cursor: pointer;
}

.feature-card:hover, .pricing-card:hover {
  cursor: default;
}

/* Сброс курсора */
html, body {
  cursor: default;
}

/* Улучшение дизайна с сохранением черно-белого стиля */

/* Улучшенные тени в оттенках серого */
.card, .feature-card, .pricing-card, .stat-card {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover, .feature-card:hover, .pricing-card:hover, .stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15), 0 3px 6px rgba(0, 0, 0, 0.1);
}

/* Заголовки */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-mono);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: 3rem;
}

h2 {
  font-size: 2.25rem;
}

h3 {
  font-size: 1.5rem;
}

/* Контейнеры */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Секции */
.section {
  padding: 5rem 0;
  position: relative;
}

/* Анимации появления */
.fade-in {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.animated {
  opacity: 1;
  transform: translate(0);
}

/* Задержки для анимаций */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }

.section-dark {
  background-color: var(--black);
  color: var(--white);
}

/* Формы */
.form-group {
  margin-bottom: 1.5rem;
  position: relative;
}

.form-input {
  display: block;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  background-color: transparent;
  border: none;
  border-bottom: 1px solid var(--gray-700);
  color: var(--white);
  transition: all 0.3s ease;
  outline: none;
  font-family: var(--font-mono);
}

.form-input:focus {
  border-color: var(--white);
  box-shadow: 0 1px 0 0 var(--white);
}

.form-input::placeholder {
  color: var(--gray-600);
  opacity: 0.7;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  color: var(--gray-400);
  text-transform: uppercase;
}

.form-submit {
  background-color: var(--black);
  color: var(--white);
  border: 1px solid var(--white);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 1rem;
  position: relative;
}

.form-submit:hover {
  background-color: var(--white);
  color: var(--black);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.form-submit:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--gray-800), 0 0 0 4px var(--gray-400);
}

/* Хедер */
header {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
  padding: var(--space-md) 0;
  transition: background-color 0.3s ease;
}

header.scrolled {
  background-color: var(--white);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.section-dark header.scrolled {
  background-color: var(--black);
  box-shadow: 0 4px 6px rgba(255, 255, 255, 0.1);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  color: var(--black);
  font-family: var(--font-mono);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.8rem;
  letter-spacing: 2px;
  display: flex;
  align-items: center;
  position: relative;
  transition: all 0.3s ease;
}

.logo-text {
  position: relative;
  padding: 5px 0;
}

.logo-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--black);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.logo-text:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Стиль логотипа доработан - SVG удален */

/* Навигация */
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: inherit;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

.main-nav a {
  color: inherit;
  text-decoration: none;
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  position: relative;
  padding: var(--space-xs) 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: currentColor;
  transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

/* Кнопки */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-mono);
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid var(--black);
  background-color: transparent;
  color: var(--black);
  transition: all var(--transition-normal);
  letter-spacing: 0.05rem;
  position: relative;
  overflow: hidden;
  z-index: 1;
  border-radius: 0; /* строго острые углы */
  text-transform: uppercase;
  font-size: 0.9rem;
}

.btn:hover {
  background-color: var(--black);
  color: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn:focus,
input:focus,
textarea:focus,
a:focus,
[role="button"]:focus,
[tabindex]:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--white), 0 0 0 4px var(--black);
  position: relative;
  z-index: 1;
  transition: box-shadow 0.2s ease;
}

/* Стилизация кнопок с эффектом выдвижения */
.btn {
  position: relative;
  overflow: hidden;
  z-index: 1;
  transition: all 0.4s ease;
}

.btn-primary {
  background-color: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.btn-primary:hover {
  background-color: var(--white);
  color: var(--black);
}

.btn::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 0;
  left: 0;
  bottom: 0;
  background-color: var(--black);
  z-index: -1;
  transition: height 0.3s ease;
}

.btn-primary::after {
  background-color: var(--white);
}

.btn:hover::after {
  height: 100%;
}

/* Стильные рамки без скруглений */
.card, .feature-card, .pricing-card, .stat-card {
  border: 1px solid var(--gray-200);
  border-radius: 0;
  padding: 2rem;
  margin-bottom: 2rem;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.card::before, .feature-card::before, .pricing-card::before, .interface-card::after {
  content: '';
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  width: 8px;
  height: 8px;
  background-color: var(--gray-600);
}

/* Анимации для демо-интерфейса */
.interface-card {
  animation: pulse 4s infinite alternate;
}

.interface-card:nth-child(1) { animation-delay: 0s; }
.interface-card:nth-child(2) { animation-delay: 0.5s; }
.interface-card:nth-child(3) { animation-delay: 1s; }
.interface-card:nth-child(4) { animation-delay: 1.5s; }

.demo-screen {
  position: relative;
  margin-bottom: 3rem;
}

@keyframes pulse {
  0% { opacity: 0.7; }
  50% { opacity: 0.9; }
  100% { opacity: 0.7; }
}

/* Форма для демо-секции */
.demo-form {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  background-color: var(--black);
  border: 1px solid var(--gray-800);
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

.demo-form h3 {
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
  font-family: var(--font-mono);
  letter-spacing: -0.5px;
}

.demo-form h3::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 50%;
  height: 2px;
  background-color: var(--white);
}

.form-glitch-wrap {
  position: relative;
}

.form-glitch-wrap::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border: 1px solid var(--gray-700);
  pointer-events: none;
  animation: formGlitch 10s infinite;
}

@keyframes formGlitch {
  0%, 100% { clip-path: inset(0 0 0 0); }
  10% { clip-path: inset(0 0 98% 0); }
  20% { clip-path: inset(0 0 0 0); }
  30% { clip-path: inset(0 98% 0 0); }
  40% { clip-path: inset(0 0 0 0); }
  50% { clip-path: inset(98% 0 0 0); }
  60% { clip-path: inset(0 0 0 0); }
  70% { clip-path: inset(0 0 0 98%); }
  80% { clip-path: inset(0 0 0 0); }
  90% { clip-path: inset(30% 10% 50% 15%); }
  95% { clip-path: inset(0 0 0 0); }
}

.card::before, .feature-card::before, .pricing-card::before, .stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 4px;
  background-color: var(--black);
  transition: width 0.4s ease;
}

.card:hover::before, .feature-card:hover::before, .pricing-card:hover::before, .stat-card:hover::before {
  width: 100%;
}

.section-dark .btn-primary {
  background-color: var(--white);
  color: var(--black);
  border-color: var(--white);
}

.section-dark .btn-primary:hover {
  background-color: transparent;
  color: var(--white);
}

/* Стили для сетки возможностей */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-grid {
  margin-top: 3rem;
}

.mt-lg {
  margin-top: 2rem;
}

/* Стили для карточек возможностей */
.card {
  display: flex;
  flex-direction: column;
  background-color: var(--white);
  color: var(--black);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--black);
}

.card-title {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  margin-bottom: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  display: inline-block;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.5;
  opacity: 0.8;
  font-family: var(--font-sans);
}

/* Добавляем минималистичную анимацию для иконок */
.card:hover .card-icon {
  transform: translateY(-5px);
  transition: transform 0.3s ease;
}

.card-icon {
  transition: transform 0.3s ease;
}

/* Стиль для заголовков с подчеркиванием */
.text-center {
  text-align: center;
  position: relative;
  display: inline-block;
  margin: 0 auto;
  padding-bottom: 10px;
}

h2.text-center {
  display: block;
  max-width: 80%;
  margin: 0 auto 20px;
}

h2.text-center::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 2px;
  background-color: var(--black);
}

.section-dark h2.text-center::after {
  background-color: var(--white);
}

/* Сетка статистики */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background-color: #111111;
  border: 1px solid #333333;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section-dark .stat-card {
  background-color: #111111;
  color: #ffffff;
  border: 1px solid #333333;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.25);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.stat-label {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.8;
  color: #cccccc;
}

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

/* Стили для карточек тарифов */
.price-card {
  display: flex;
  flex-direction: column;
  background-color: var(--white);
  color: var(--black);
  border: 1px solid var(--gray-200);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  padding: 2rem;
}

.section-dark .price-card {
  background-color: var(--black);
  color: var(--white);
  border: 1px solid var(--gray-700);
}

.price-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.price-header {
  text-align: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--gray-200);
}

.section-dark .price-header {
  border-bottom: 1px solid var(--gray-700);
}

.price-title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.5rem;
  text-transform: uppercase;
  margin-bottom: 1rem;
  letter-spacing: 1px;
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}

.price-period {
  font-size: 0.9rem;
  color: var(--gray-500);
}

.section-dark .price-period {
  color: var(--gray-400);
}

.price-features {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem 0;
  flex-grow: 1;
}

.price-features li {
  padding: 0.75rem 0;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--gray-100);
}

.section-dark .price-features li {
  border-bottom: 1px solid var(--gray-800);
}

.price-features .icon {
  margin-right: 0.75rem;
}

.price-features .fa-check {
  color: var(--gray-700);
}

.section-dark .price-features .fa-check {
  color: var(--gray-300);
}

.price-features .fa-times {
  color: var(--gray-400);
}

.price-cta {
  margin-top: auto;
  text-align: center;
}

.price-cta .btn {
  width: 100%;
}

/* Hero секция */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--space-lg);
  max-width: 800px;
  position: relative;
  display: inline-block;
}

.hero-title::before {
  content: '';
  position: absolute;
  top: 0;
  left: -10px;
  width: 3px;
  height: 100%;
  background-color: currentColor;
}

.hero-desc {
  max-width: 600px;
  margin-bottom: var(--space-xl);
  font-size: 1.125rem;
  font-family: var(--font-mono);
  opacity: 0.8;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
}

/* Линии фона */
.lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.1;
  pointer-events: none;
}

.line {
  position: absolute;
  width: 1px;
  height: 100%;
  top: 0;
  background-color: currentColor;
}

.line:nth-child(1) { left: 10%; }
.line:nth-child(2) { left: 25%; }
.line:nth-child(3) { left: 50%; }
.line:nth-child(4) { left: 75%; }
.line:nth-child(5) { left: 90%; }

.horizontal-line {
  position: absolute;
  height: 1px;
  width: 100%;
  background-color: currentColor;
}

.horizontal-line:nth-child(6) { top: 20%; }
.horizontal-line:nth-child(7) { top: 50%; }
.horizontal-line:nth-child(8) { top: 80%; }

/* Карты и секции */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.card {
  border: 1px solid currentColor;
  padding: var(--space-lg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.section-dark .card:hover {
  box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}

.card-title {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.card-icon {
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
}

/* Секция с функционалом */
.feature-grid {
  margin-top: var(--space-xl);
}

/* Секция с тарифами */
.price-grid {
  margin-top: var(--space-xl);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.price-card {
  border: 1px solid currentColor;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
}

.price-header {
  margin-bottom: var(--space-lg);
  text-align: center;
}

.price-title {
  margin-bottom: var(--space-xs);
}

.price-amount {
  font-size: 2.5rem;
  font-family: var(--font-mono);
  margin-bottom: var(--space-xs);
}

.price-period {
  font-size: 0.875rem;
  opacity: 0.7;
}

.price-features {
  margin-bottom: var(--space-lg);
  list-style: none;
}

.price-features li {
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.price-features .icon {
  font-size: 0.875rem;
}

.price-cta {
  margin-top: auto;
  text-align: center;
}

/* Секция статистики */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.stat-card {
  text-align: center;
}

.stat-value {
  font-size: 3rem;
  font-family: var(--font-mono);
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.7;
}

/* Контактная форма */
.form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-md);
}

label {
  display: block;
  margin-bottom: var(--space-xs);
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.875rem;
}

input, textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  font-family: var(--font-sans);
  border-radius: 0;
}

textarea {
  min-height: 150px;
  resize: vertical;
}

/* Футер */
footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid currentColor;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.footer-col h3 {
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: inherit;
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 1;
}

.footer-bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section-dark .footer-bottom {
  border-top-color: rgba(255, 255, 255, 0.1);
}

.copyright {
  font-size: 0.875rem;
}

.social-links {
  display: flex;
  gap: var(--space-md);
}

.social-links a {
  color: inherit;
  font-size: 1.25rem;
}

/* Улучшенный глитч-эффект для текста */
.glitch-text {
  position: relative;
  display: inline-block;
  animation: textShadowPulse 3s infinite;
}

.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.8;
}

.glitch-text::before {
  left: -2px;
  text-shadow: -1px 0 var(--gray-300);
  animation: glitch-animation 3s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}

.glitch-text::after {
  left: 2px;
  text-shadow: 1px 0 var(--gray-300);
  animation: glitch-animation-2 2.7s infinite linear alternate-reverse;
  clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
}

@keyframes glitch-anim-1 {
  0% {
    clip: rect(23px, 9999px, 68px, 0);
    transform: skew(0.6deg);
  }
  5% {
    clip: rect(68px, 9999px, 53px, 0);
    transform: skew(0.84deg);
  }
  10% {
    clip: rect(86px, 9999px, 41px, 0);
    transform: skew(0.14deg);
  }
  15% {
    clip: rect(48px, 9999px, 29px, 0);
    transform: skew(0.01deg);
  }
  20% {
    clip: rect(5px, 9999px, 65px, 0);
    transform: skew(0.4deg);
  }
  25% {
    clip: rect(30px, 9999px, 64px, 0);
    transform: skew(0.46deg);
  }
  30% {
    clip: rect(23px, 9999px, 9px, 0);
    transform: skew(0.68deg);
  }
  35% {
    clip: rect(46px, 9999px, 15px, 0);
    transform: skew(0.26deg);
  }
  40% {
    clip: rect(83px, 9999px, 3px, 0);
    transform: skew(0.33deg);
  }
  45% {
    clip: rect(73px, 9999px, 78px, 0);
    transform: skew(0.25deg);
  }
  50% {
    clip: rect(86px, 9999px, 68px, 0);
    transform: skew(0.89deg);
  }
  55% {
    clip: rect(59px, 9999px, 25px, 0);
    transform: skew(0.07deg);
  }
  60% {
    clip: rect(62px, 9999px, 84px, 0);
    transform: skew(0.58deg);
  }
  65% {
    clip: rect(72px, 9999px, 50px, 0);
    transform: skew(0.83deg);
  }
  70% {
    clip: rect(33px, 9999px, 3px, 0);
    transform: skew(0.2deg);
  }
  75% {
    clip: rect(77px, 9999px, 99px, 0);
    transform: skew(0.22deg);
  }
  80% {
    clip: rect(32px, 9999px, 8px, 0);
    transform: skew(0.95deg);
  }
  85% {
    clip: rect(91px, 9999px, 87px, 0);
    transform: skew(0.47deg);
  }
  90% {
    clip: rect(27px, 9999px, 14px, 0);
    transform: skew(0.01deg);
  }
  95% {
    clip: rect(30px, 9999px, 88px, 0);
    transform: skew(0.52deg);
  }
  100% {
    clip: rect(45px, 9999px, 31px, 0);
    transform: skew(0.63deg);
  }
}

@keyframes glitch-anim-2 {
  0% {
    clip: rect(66px, 9999px, 27px, 0);
    transform: skew(0.3deg);
  }
  5% {
    clip: rect(52px, 9999px, 7px, 0);
    transform: skew(0.05deg);
  }
  10% {
    clip: rect(65px, 9999px, 78px, 0);
    transform: skew(0.52deg);
  }
  15% {
    clip: rect(85px, 9999px, 4px, 0);
    transform: skew(0.54deg);
  }
  20% {
    clip: rect(64px, 9999px, 33px, 0);
    transform: skew(0.02deg);
  }
  25% {
    clip: rect(39px, 9999px, 34px, 0);
    transform: skew(0.6deg);
  }
  30% {
    clip: rect(19px, 9999px, 1px, 0);
    transform: skew(0.61deg);
  }
  35% {
    clip: rect(98px, 9999px, 61px, 0);
    transform: skew(0.32deg);
  }
  40% {
    clip: rect(6px, 9999px, 27px, 0);
    transform: skew(0.67deg);
  }
  45% {
    clip: rect(39px, 9999px, 22px, 0);
    transform: skew(0.98deg);
  }
  50% {
    clip: rect(98px, 9999px, 2px, 0);
    transform: skew(0.39deg);
  }
  55% {
    clip: rect(55px, 9999px, 39px, 0);
    transform: skew(0.08deg);
  }
  60% {
    clip: rect(81px, 9999px, 99px, 0);
    transform: skew(0.81deg);
  }
  65% {
    clip: rect(20px, 9999px, 29px, 0);
    transform: skew(0.35deg);
  }
  70% {
    clip: rect(75px, 9999px, 96px, 0);
    transform: skew(0.16deg);
  }
  75% {
    clip: rect(69px, 9999px, 63px, 0);
    transform: skew(0.52deg);
  }
  80% {
    clip: rect(62px, 9999px, 67px, 0);
    transform: skew(0.06deg);
  }
  85% {
    clip: rect(20px, 9999px, 16px, 0);
    transform: skew(0.32deg);
  }
  90% {
    clip: rect(58px, 9999px, 100px, 0);
    transform: skew(0.77deg);
  }
  95% {
    clip: rect(100px, 9999px, 35px, 0);
    transform: skew(0.49deg);
  }
  100% {
    clip: rect(29px, 9999px, 99px, 0);
    transform: skew(0.4deg);
  }
}

@keyframes glitch-skew {
  0% {
    transform: skew(1deg);
  }
  10% {
    transform: skew(-4deg);
  }
  20% {
    transform: skew(2deg);
  }
  30% {
    transform: skew(5deg);
  }
  40% {
    transform: skew(-3deg);
  }
  50% {
    transform: skew(0deg);
  }
  60% {
    transform: skew(-1deg);
  }
  70% {
    transform: skew(-4deg);
  }
  80% {
    transform: skew(3deg);
  }
  90% {
    transform: skew(2deg);
  }
}

/* Шумовые эффекты и глитч */
.noise {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAABmJLR0QA/wD/AP+gvaeTAAAA30lEQVRoge3YMQ7CMBREQUpOwE25XzhNOQIHo6GhiWOv9yW7/yVp5GdFZuZfRCylXmttY62bYzw8W2ZuEXFzLOw5M5eIeNS6cQkAwB7xy9SRE73rti0ivr+Od9oeES9HOCTfuogYHUFBBsdog2/QBt+gDb5BG3yDNvgGbfAN2uAbtME3aINv0AbfoA2+QRt8g/6ELKVeo1/ILrjjoyMoHCiQVBtkdIQMQiBXxzyUQY7fD32QURt0ZNwGGRjSoT2/egcAtEcaHXfpL0dPDnkl9/519JLdAL2u+wG62Huo8rAJdgAAAABJRU5ErkJggg==");
  opacity: 0.03;
  z-index: -1;
  pointer-events: none;
  animation: noiseAnimation 0.5s steps(2) infinite;
}

.glitch-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.04;
  background-image: url("data:image/png;base64,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");
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: overlay;
  animation: glitchAnimation 10s steps(10) infinite;
}

@keyframes noiseAnimation {
  0%, 100% { transform: translate(0, 0); }
  10% { transform: translate(-1px, 1px); }
  20% { transform: translate(1px, -1px); }
  30% { transform: translate(-2px, 2px); }
  40% { transform: translate(2px, -2px); }
  50% { transform: translate(-1px, 2px); }
  60% { transform: translate(1px, -2px); }
  70% { transform: translate(-2px, 1px); }
  80% { transform: translate(2px, -1px); }
  90% { transform: translate(-1px, -1px); }
}

@keyframes glitchAnimation {
  0%, 100% { background-position: 0 0; }
  10% { background-position: -2px 1px; }
  20% { background-position: 2px -1px; }
  30% { background-position: -1px 2px; }
  40% { background-position: 1px -2px; }
  50% { background-position: -2px 2px; }
  60% { background-position: 2px -2px; }
  70% { background-position: -1px 1px; }
  80% { background-position: 1px -1px; }
  90% { background-position: -2px -2px; }
}

@keyframes noise {
  0% { transform: translate(0,0); }
  10% { transform: translate(-5%,-5%); }
  20% { transform: translate(-10%,5%); }
  30% { transform: translate(5%,-10%); }
  40% { transform: translate(-5%,15%); }
  50% { transform: translate(-10%,5%); }
  60% { transform: translate(15%,0); }
  70% { transform: translate(0,10%); }
  80% { transform: translate(-15%,0); }
  90% { transform: translate(10%,5%); }
  100% { transform: translate(0,0); }
}

/* Медиа запросы */
@media (max-width: 991px) {
  .container {
    width: 100%;
    padding: 0 var(--space-md);
  }
  
  .hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
  }
  
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
  
  .price-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  
  .demo-interface {
    grid-template-columns: 150px 1fr;
  }
}

@media (max-width: 767px) {
  .hero {
    padding: 5rem 0 3rem;
  }
  
  .hero-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  }
  
  .grid-2, .grid-3, .grid-4, .stat-grid, .price-grid {
    grid-template-columns: 1fr;
  }
  
  header {
    padding: 0.75rem 0;
  }
  
  .main-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu {
    display: block;
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: var(--black);
    z-index: 100;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    padding: 2rem;
  }
  
  .mobile-menu.active {
    transform: translateY(0);
  }
  
  .mobile-menu a {
    display: block;
    padding: 1rem 0;
    font-size: 1.25rem;
    border-bottom: 1px solid var(--gray-800);
    text-transform: uppercase;
    letter-spacing: 1px;
  }
  
  .screen-mockup {
    max-width: 100%;
  }
  
  .demo-interface {
    grid-template-columns: 1fr;
  }
  
  .interface-sidebar {
    border-right: none;
    border-bottom: 1px solid var(--gray-800);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
    display: flex;
    gap: 0.5rem;
  }
  
  .interface-item {
    flex: 1;
    margin-bottom: 0;
  }
}

@media (max-width: 480px) {
  :root {
    --space-sm: 0.5rem;
    --space-md: 0.75rem;
    --space-lg: 1rem;
    --space-xl: 1.5rem;
    --space-xxl: 2rem;
  }
  
  .section {
    padding: 3rem 0;
  }
  
  .btn {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
  }
  
  .hero-desc {
    font-size: 1rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .stat-card, .price-card {
    padding: 1rem;
  }
  
  .demo-form {
    padding: 1.5rem 1rem;
  }
  
  .footer {
    padding: 2rem 0 1rem;
    text-align: center;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 992px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.25rem; }
  
  .hero-title { 
    font-size: clamp(2rem, 4vw, 3rem); 
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--white);
    padding: var(--space-xl);
    transition: right 0.3s ease;
    z-index: 999;
  }
  
  .section-dark .main-nav {
    background-color: var(--black);
  }
  
  .main-nav.active {
    right: 0;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: var(--space-lg);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .grid,
  .price-grid {
    grid-template-columns: 1fr;
  }
}

/* Утилиты */
.text-center { text-align: center; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

/* Анимация для заголовков */
.heading-animated {
  position: relative;
  display: inline-block;
  overflow: hidden;
  font-family: var(--font-mono);
}

.heading-animated::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--white);
  transition: width 0.7s ease;
}

.heading-animated.animated::after {
  width: 100%;
}

/* Стили для модальных окон в строгом монохромном стиле */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  z-index: 1000;
  overflow: auto;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal.active {
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 1;
}

.modal-content {
  background-color: var(--white);
  color: var(--black);
  width: 90%;
  max-width: 500px;
  border: 1px solid var(--gray-700);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  position: relative;
  animation: modal-appear 0.3s ease forwards;
}

.modal-header {
  padding: 1.5rem;
  background-color: var(--black);
  color: var(--white);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--gray-700);
}

.modal-header h3 {
  margin: 0;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.modal-close {
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s ease;
}

.modal-close:hover {
  color: var(--gray-300);
}

.modal-body {
  padding: 2rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}

.success-icon {
  font-size: 3rem;
  margin: 1.5rem 0;
  color: var(--gray-800);
  animation: pulse 2s infinite;
}

@keyframes modal-appear {
  0% {
    opacity: 0;
    transform: translateY(-30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

/* Дополнительный глитч-эффект для заголовков */
.heading-glitch {
  position: relative;
  display: inline-block;
  font-family: var(--font-mono);
  letter-spacing: -1px;
  text-transform: uppercase;
}

.heading-glitch::before,
.heading-glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--black);
  color: var(--white);
}

.heading-glitch::before {
  left: -2px;
  text-shadow: -1px 0 var(--gray-300);
  animation: heading-glitch-1 3s infinite linear alternate-reverse;
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}

.heading-glitch::after {
  left: 2px;
  text-shadow: 1px 0 var(--gray-300);
  animation: heading-glitch-2 2.7s infinite linear alternate-reverse;
  clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
}

@keyframes heading-glitch-1 {
  0% { transform: translateX(0); }
  5% { transform: translateX(1px); }
  10% { transform: translateX(0); }
  15% { transform: translateX(-1px); }
  20% { transform: translateX(0); }
  55% { transform: translateX(0); }
  60% { transform: translateX(1px); }
  65% { transform: translateX(0); }
  100% { transform: translateX(0); }
}

@keyframes heading-glitch-2 {
  0% { transform: translateY(0); }
  15% { transform: translateY(-1px); }
  20% { transform: translateY(0); }
  25% { transform: translateY(1px); }
  30% { transform: translateY(0); }
  70% { transform: translateY(0); }
  75% { transform: translateY(-1px); }
  80% { transform: translateY(0); }
  100% { transform: translateY(0); }
}

/* ============================================================
   ZENITH ACCENT UTILITIES — red highlights on monochrome base
   ============================================================ */

.text-accent { color: var(--accent) !important; }
.bg-accent { background-color: var(--accent) !important; color: var(--white) !important; }
.bg-accent-soft { background-color: var(--accent-soft) !important; color: var(--accent-active) !important; }
.border-accent { border-color: var(--accent) !important; }

.btn-accent {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .65rem 1.25rem;
  background: var(--accent); color: var(--white);
  border: 1px solid var(--accent);
  font-family: var(--font-mono); font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  font-size: .85rem; cursor: pointer; text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.btn-accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-1px); }
.btn-accent:active { background: var(--accent-active); transform: translateY(0); }

.btn-ghost-accent {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .55rem 1.1rem;
  background: transparent; color: var(--accent);
  border: 1px solid var(--accent);
  font-family: var(--font-mono); font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  font-size: .8rem; cursor: pointer; text-decoration: none;
  transition: all var(--transition-fast);
}
.btn-ghost-accent:hover { background: var(--accent); color: var(--white); }

.badge {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .15rem .55rem;
  font-family: var(--font-mono); font-size: .7rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .06em;
  background: var(--gray-100); color: var(--gray-800);
  border: 1px solid var(--gray-300);
  border-radius: 2px;
}
.badge-accent {
  background: var(--accent-soft); color: var(--accent-active);
  border-color: var(--accent-border);
}
.badge-dark { background: var(--black); color: var(--white); border-color: var(--black); }
.badge-live::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); animation: zenith-pulse 1.6s ease-in-out infinite;
}

@keyframes zenith-pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%     { opacity: .35; transform: scale(.7); }
}

.alert {
  display: flex; align-items: flex-start; gap: .75rem;
  padding: .85rem 1rem;
  border-left: 3px solid var(--gray-400);
  background: var(--gray-100);
  font-size: .9rem;
}
.alert-accent { border-left-color: var(--accent); background: var(--accent-soft); color: var(--accent-active); }
.alert i { margin-top: .2rem; }

.divider-accent {
  height: 3px; width: 48px; background: var(--accent); margin: .5rem 0 1.25rem;
}