:root {
  --vk-orange: #ff8a18;
  --vk-orange-hover: #e9770f;
  --vk-black: #050505;
  --vk-graphite: #141414;
  --vk-dark-gray: #242424;
  --vk-white: #ffffff;
  --vk-soft: #f5f5f2;
  --vk-border: #e8e8e3;
  --vk-text: #171717;
  --vk-muted: #6b6b6b;
  --vk-radius-sm: 12px;
  --vk-radius-md: 16px;
  --vk-radius-lg: 24px;
  --vk-container: 1320px;
  --vk-shadow: 0 18px 50px rgba(0, 0, 0, 0.08);
  --vk-shadow-hover: 0 24px 70px rgba(0, 0, 0, 0.14);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--vk-white);
  color: var(--vk-text);
  font-family: "Manrope", sans-serif;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition:
    color 0.2s ease,
    opacity 0.2s ease,
    border-color 0.2s ease,
    background-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

a:hover {
  color: var(--vk-orange);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  color: var(--vk-text);
  font-family: "Manrope", sans-serif;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(42px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.05;
}

h2 {
  font-size: clamp(34px, 4.8vw, 44px);
  font-weight: 800;
  line-height: 1.15;
}

h3 {
  font-size: clamp(24px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.25;
}

h4 {
  font-size: clamp(20px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.3;
}

p {
  margin: 0 0 1em;
}

.vkc-container {
  width: min(100%, var(--vk-container));
  margin-inline: auto;
  padding-inline: 24px;
}

.vkc-section {
  position: relative;
  padding-block: 120px;
  background: var(--vk-white);
}

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

.vkc-section-dark h1,
.vkc-section-dark h2,
.vkc-section-dark h3,
.vkc-section-dark h4,
.vkc-section-dark p,
.vkc-section-dark li,
.vkc-section-dark a {
  color: inherit;
}

.vkc-product-card,
.vkc-segment-card,
.vkc-benefit-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--vk-border);
  border-radius: var(--vk-radius-lg);
  background: var(--vk-white);
  box-shadow: var(--vk-shadow);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.vkc-product-card:hover,
.vkc-segment-card:hover,
.vkc-benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--vk-shadow-hover);
  border-color: rgba(255, 138, 24, 0.24);
}

.vkc-product-card {
  padding: 24px;
  background: linear-gradient(180deg, #ffffff 0%, var(--vk-soft) 100%);
}

.vkc-segment-card,
.vkc-benefit-card {
  padding: 24px;
}

.vkc-lead-form,
.vkc-form {
  border-radius: var(--vk-radius-lg);
  background: var(--vk-graphite);
  color: var(--vk-white);
  box-shadow: var(--vk-shadow);
}

.vkc-form {
  padding: 32px;
}

.vkc-input,
.vkc-form input,
.vkc-form select,
.vkc-form textarea {
  width: 100%;
  min-height: 56px;
  padding: 0 18px;
  border: 1px solid var(--vk-border);
  border-radius: var(--vk-radius-sm);
  background: var(--vk-white);
  color: var(--vk-text);
  font: inherit;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.vkc-form textarea {
  min-height: 140px;
  padding-block: 14px;
  resize: vertical;
}

.vkc-input::placeholder,
.vkc-form input::placeholder,
.vkc-form textarea::placeholder {
  color: var(--vk-muted);
}

.vkc-input:focus,
.vkc-form input:focus,
.vkc-form select:focus,
.vkc-form textarea:focus {
  outline: none;
  border-color: var(--vk-orange);
  box-shadow: 0 0 0 4px rgba(255, 138, 24, 0.15);
}

.vkc-btn-primary,
.vkc-btn-secondary,
.vkc-btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 14px 28px;
  border-radius: var(--vk-radius-md);
  border: 1px solid transparent;
  font-family: "Manrope", sans-serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  text-align: center;
}

.vkc-btn-primary {
  background: var(--vk-orange);
  color: var(--vk-white);
  box-shadow: var(--vk-shadow);
}

.vkc-btn-primary:hover {
  background: var(--vk-orange-hover);
  color: var(--vk-white);
  transform: translateY(-2px);
}

.vkc-btn-secondary {
  background: var(--vk-graphite);
  color: var(--vk-white);
}

.vkc-btn-secondary:hover {
  background: var(--vk-dark-gray);
  color: var(--vk-white);
}

.vkc-btn-ghost {
  border-color: var(--vk-orange);
  background: transparent;
  color: var(--vk-orange);
}

.vkc-btn-ghost:hover {
  background: rgba(255, 138, 24, 0.08);
  color: var(--vk-orange);
}

.vkc-logo-ring,
.vkc-logo-sector,
.vkc-dot-pattern {
  position: relative;
}

.vkc-logo-ring::before {
  content: "";
  position: absolute;
  inset: auto -80px -80px auto;
  width: 220px;
  height: 220px;
  border: 18px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

.vkc-section:not(.vkc-section-dark) .vkc-logo-ring::before {
  border-color: rgba(20, 20, 20, 0.06);
}

.vkc-logo-sector::after {
  content: "";
  position: absolute;
  top: 8%;
  right: 12%;
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, rgba(255, 138, 24, 0.95), rgba(255, 138, 24, 0.72));
  clip-path: polygon(0 0, 100% 18%, 62% 100%, 0 68%);
  pointer-events: none;
}

.vkc-dot-pattern::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 180px;
  height: 180px;
  background-image: radial-gradient(rgba(255, 255, 255, 0.35) 1.4px, transparent 1.4px);
  background-size: 12px 12px;
  opacity: 0.9;
  pointer-events: none;
}

.vkc-section:not(.vkc-section-dark) .vkc-dot-pattern::after {
  background-image: radial-gradient(rgba(20, 20, 20, 0.14) 1.2px, transparent 1.2px);
}

@media (max-width: 1024px) {
  .vkc-section {
    padding-block: 80px;
  }

  .vkc-container {
    padding-inline: 20px;
  }
}

@media (max-width: 767px) {
  body {
    font-size: 16px;
  }

  .vkc-section {
    padding-block: 60px;
  }

  .vkc-container {
    padding-inline: 16px;
  }

  .vkc-form {
    padding: 24px;
  }

  .vkc-logo-ring::before,
  .vkc-logo-sector::after,
  .vkc-dot-pattern::after {
    transform: scale(0.75);
    transform-origin: bottom right;
  }
}