:root {
  --kv-bg: #f5f5f7;
  --kv-bg-alt: #ffffff;
  --kv-bg-alt2: #f3f4f6;
  --kv-bg-dark: #020617;
  --kv-text: #020617;
  --kv-muted: #4b5563;
  --kv-border: #e5e7eb;
  --kv-brand: #0b2643;
  --kv-brand-soft: #e1e8f4;
  --kv-accent: #2563eb;
  --kv-radius-lg: 16px;
  --kv-radius-xl: 22px;
  --kv-shadow-soft: 0 18px 40px rgba(15, 23, 42, 0.18);
}

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

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: var(--kv-bg);
  color: var(--kv-text);
}

body {
  min-height: 100vh;
}

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

/* Layout */

.kv-container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

.kv-page {
  padding-bottom: 72px;
}

/* Header */

.kv-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(245, 245, 247, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.4);
}

.kv-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.kv-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.kv-logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  overflow: hidden;
}

.kv-logo-mark svg rect {
  fill: var(--kv-brand);
}

.kv-logo-mark svg path {
  fill: #ffffff;
}

.kv-logo-text {
  font-weight: 700;
  letter-spacing: 0.16em;
  font-size: 0.82rem;
  color: var(--kv-text);
}

.kv-logo--small .kv-logo-text {
  font-size: 0.78rem;
}

.kv-nav a {
  margin-left: 18px;
  font-size: 0.9rem;
  color: var(--kv-muted);
  text-decoration: none;
  position: relative;
  padding-bottom: 3px;
}

.kv-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--kv-brand);
  transition: width 0.18s ease-out;
}

.kv-nav a:hover::after {
  width: 100%;
}

/* Hero */

.kv-hero {
  padding: 32px 0 32px;
  background: linear-gradient(to bottom, #ffffff, #f3f4f6);
  border-bottom: 1px solid var(--kv-border);
}

.kv-hero--home {
  padding-top: 40px;
}

.kv-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
  gap: 28px;
  align-items: center;
}

.kv-hero-text h1 {
  font-size: clamp(2rem, 3vw, 2.5rem);
  margin: 6px 0 10px;
}

.kv-hero-sub {
  font-size: 0.98rem;
  color: var(--kv-muted);
  max-width: 520px;
}

.kv-kicker {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: #6b7280;
}

.kv-hero-bullets {
  list-style: none;
  padding: 0;
  margin: 14px 0 14px;
  color: var(--kv-muted);
  font-size: 0.95rem;
}

.kv-hero-bullets li {
  margin-bottom: 4px;
}

.kv-hero-bullets li::before {
  content: "• ";
  color: var(--kv-brand);
}

.kv-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 10px;
}

.kv-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: #6b7280;
}

.kv-hero-badges span {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--kv-brand-soft);
}

/* Hero media */

.kv-hero-media {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kv-hero-card {
  border-radius: var(--kv-radius-xl);
  padding: 18px 18px 20px;
  background: radial-gradient(circle at top left, #e0ecff, #ffffff);
  border: 1px solid rgba(148, 163, 184, 0.55);
  box-shadow: var(--kv-shadow-soft);
}

.kv-hero-card-kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #6b7280;
  margin-bottom: 6px;
}

.kv-hero-card h2 {
  font-size: 1.2rem;
  margin: 0 0 6px;
}

.kv-hero-card p {
  margin: 0;
  color: var(--kv-muted);
  font-size: 0.95rem;
}

.kv-home-stats {
  display: flex;
  gap: 16px;
  margin-top: 10px;
}

.kv-home-stats div {
  flex: 1;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--kv-border);
  background: #ffffff;
}

.kv-home-stats-number {
  display: block;
  font-weight: 700;
  font-size: 1.4rem;
}

.kv-home-stats-label {
  display: block;
  font-size: 0.82rem;
  color: var(--kv-muted);
}

.kv-product-photo {
  border-radius: var(--kv-radius-xl);
  background: #e5e7eb;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6b7280;
  font-size: 0.9rem;
  border: 1px dashed #cbd5e1;
}

.kv-product-photo--hero {
  background: radial-gradient(circle at top, #dbeafe, #e5e7eb);
}

.kv-hero-caption {
  font-size: 0.8rem;
  color: #6b7280;
}

/* Buttons */

.kv-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease-out, box-shadow 0.12s ease-out, background 0.12s ease-out;
}

.kv-btn--primary {
  background: linear-gradient(135deg, var(--kv-brand), #1d4ed8);
  color: #f9fafb;
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.45);
}

.kv-btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 44px rgba(15, 23, 42, 0.55);
}

.kv-btn--ghost {
  background: transparent;
  color: var(--kv-brand);
  border-color: rgba(148, 163, 184, 0.7);
}

.kv-btn--ghost:hover {
  background: #e5e7eb;
}

.kv-btn--block {
  width: 100%;
}

/* Sections */

.kv-section {
  padding: 32px 0;
  background: var(--kv-bg-alt);
}

.kv-section--alt {
  background: var(--kv-bg-alt2);
  border-top: 1px solid var(--kv-border);
  border-bottom: 1px solid var(--kv-border);
}

.kv-section--offer {
  background: #0b2643;
  color: #e5e7eb;
}

.kv-section--gallery {
  background: #ffffff;
}

.kv-section h1,
.kv-section h2 {
  margin: 0 0 10px;
}

.kv-lead {
  margin: 0 0 16px;
  color: var(--kv-muted);
  font-size: 0.96rem;
}

/* Offer box */

.kv-offer-box {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: var(--kv-radius-lg);
  background: #ffffff;
  border: 1px solid #d1d5db;
}

.kv-offer-box--big {
  background: #111827;
  border-color: rgba(156, 163, 175, 0.5);
}

.kv-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.kv-price-old {
  text-decoration: line-through;
  color: #9ca3af;
  font-size: 0.96rem;
}

.kv-price-new {
  font-size: 1.7rem;
  font-weight: 700;
}

.kv-offer-note {
  margin: 6px 0 10px;
  font-size: 0.9rem;
  color: #6b7280;
}

.kv-section--offer .kv-offer-note {
  color: #e5e7eb;
}

.kv-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}

.kv-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: #6b7280;
}

.kv-section--offer .kv-trust-row {
  color: #e5e7eb;
}

.kv-offer-small {
  margin-top: 8px;
  font-size: 0.8rem;
  color: #d1d5db;
}

/* Layout helpers */

.kv-two-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

/* Lists */

.kv-list {
  padding-left: 18px;
  color: var(--kv-muted);
  font-size: 0.95rem;
}

.kv-list--check {
  list-style: none;
  padding-left: 0;
}

.kv-list--check li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 4px;
}

.kv-list--check li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0;
  font-size: 0.8rem;
  color: #a5b4fc;
}

/* Benefits */

.kv-benefits {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.kv-benefits article {
  padding: 14px 14px 16px;
  border-radius: var(--kv-radius-lg);
  border: 1px solid var(--kv-border);
  background: #ffffff;
}

.kv-benefits h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.kv-benefits p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--kv-muted);
}

/* Gallery */

.kv-gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.kv-gallery-item {
  background: #e5e7eb;
  border-radius: 14px;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: #6b7280;
  border: 1px dashed #cbd5e1;
}

/* Steps */

.kv-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.kv-steps--simple {
  grid-template-columns: minmax(0, 1fr);
}

.kv-steps li {
  padding: 14px;
  border-radius: var(--kv-radius-lg);
  border: 1px solid var(--kv-border);
  background: #ffffff;
}

.kv-steps h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.kv-steps p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--kv-muted);
}

/* Offer layout */

.kv-offer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 22px;
  align-items: center;
}

/* Testimonials */

.kv-testimonials {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.kv-testimonial-text {
  font-size: 0.94rem;
  color: var(--kv-muted);
  margin: 0 0 8px;
}

.kv-testimonial-name {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 600;
}

/* FAQ */

.kv-faq details {
  border-radius: 12px;
  border: 1px solid var(--kv-border);
  background: #ffffff;
  padding: 10px 12px;
}

.kv-faq details + details {
  margin-top: 8px;
}

.kv-faq summary {
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
}

.kv-faq p {
  margin: 6px 0 0;
  font-size: 0.9rem;
  color: var(--kv-muted);
}

/* Product grid */

.kv-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.kv-product-card {
  border-radius: var(--kv-radius-lg);
  border: 1px solid var(--kv-border);
  background: #ffffff;
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.08);
  overflow: hidden;
}

.kv-product-card a {
  display: block;
  padding: 12px 14px 14px;
  text-decoration: none;
  color: inherit;
}

.kv-product-image {
  border-radius: 12px;
  background: #e5e7eb;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #6b7280;
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.kv-product-image--placeholder span {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px dashed #9ca3af;
}

.kv-product-card h2,
.kv-product-card h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.kv-product-card p {
  margin: 0 0 8px;
  font-size: 0.92rem;
  color: var(--kv-muted);
}

.kv-link {
  font-size: 0.86rem;
  color: var(--kv-brand);
}

/* Footer */

.kv-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.5);
  background: #f9fafb;
  padding: 16px 0 20px;
}

.kv-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.85rem;
}

.kv-footer-copy {
  margin: 4px 0 0;
  color: #6b7280;
}

.kv-footer-links a {
  margin-left: 12px;
  font-size: 0.86rem;
  color: #6b7280;
  text-decoration: none;
}

.kv-footer-links a:hover {
  text-decoration: underline;
}

/* Responsive */

@media (max-width: 900px) {
  .kv-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .kv-hero-media {
    order: -1;
  }
  .kv-two-cols {
    grid-template-columns: minmax(0, 1fr);
  }
  .kv-benefits {
    grid-template-columns: minmax(0, 1fr);
  }
  .kv-gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .kv-steps {
    grid-template-columns: minmax(0, 1fr);
  }
  .kv-offer-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .kv-testimonials {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .kv-header-inner {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 8px 0 10px;
  }
  .kv-nav {
    margin-top: 6px;
  }
  .kv-nav a {
    margin-left: 0;
    margin-right: 14px;
  }
}