:root {
  --color-bg: #e6e9ef;
  --color-surface: #ffffff;
  --color-surface-elevated: #f0f2f7;
  --color-accent: #2a4a6e;
  --color-accent-muted: #3d5f86;
  --color-accent-warm: #5a7aa1;
  --color-text: #1b2330;
  --color-text-muted: #4d5868;
  --color-border: #c8d0dc;
  --color-error: #a63d42;
  --color-success: #2f6b52;
  --color-on-accent: #ffffff;
  --color-footer-bg: #252d3a;
  --color-footer-text: #dce2ea;
  --color-footer-muted: #9ca8b8;
  --color-focus-ring: rgba(42, 74, 110, 0.22);
  --color-tint: rgba(42, 74, 110, 0.1);
  --font-sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --shadow-sm: 0 2px 8px rgba(27, 35, 48, 0.08);
  --shadow-md: 0 10px 28px rgba(27, 35, 48, 0.12);
  --shadow-glow: 0 0 0 1px rgba(42, 74, 110, 0.12), 0 14px 36px rgba(42, 74, 110, 0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --space-xs: 0.35rem;
  --space-sm: 0.65rem;
  --space-md: 1rem;
  --space-lg: 1.65rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --transition-fast: 0.18s ease;
  --transition-med: 0.28s ease;
  --header-h: 3.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-text);
  background: var(--color-bg);
  background-image: radial-gradient(ellipse 110% 70% at 12% -15%, rgba(42, 74, 110, 0.07), transparent 45%), radial-gradient(ellipse 100% 55% at 100% 20%, rgba(90, 122, 161, 0.06), transparent 42%);
}

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-muted);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-on-accent);
  z-index: 2000;
}

.skip-link:focus {
  left: var(--space-md);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.logo {
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 2vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  text-decoration: none;
}

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

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.nav-toggle:hover {
  background: var(--color-surface-elevated);
  color: var(--color-accent-warm);
  border-color: var(--color-accent-muted);
}

.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle__bars span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-md);
  align-items: center;
}

@media (min-width: 1001px) {
  .site-header__inner {
    flex-wrap: nowrap;
  }

  .site-nav {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    justify-content: flex-end;
  }

  .site-nav ul {
    flex-wrap: nowrap;
    justify-content: flex-end;
  }
}

.site-nav a {
  font-size: clamp(0.72rem, 1.6vw, 0.85rem);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.site-nav a:hover {
  color: var(--color-on-accent);
  background: var(--color-accent);
}

main {
  overflow-x: clip;
}

.section {
  padding: var(--space-2xl) var(--space-md);
}

.section__inner {
  max-width: 1120px;
  margin: 0 auto;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  margin: 0 0 var(--space-lg);
  line-height: 1.2;
  color: var(--color-text);
}

.section__lead {
  margin: 0 0 var(--space-xl);
  max-width: 62ch;
  color: var(--color-text-muted);
}

.hero {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-2xl);
}

.hero__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-xl);
  align-items: start;
}

.hero__visual {
  position: relative;
  background: linear-gradient(145deg, var(--color-surface-elevated), var(--color-surface));
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.hero__visual figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.rating-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-tint);
  border: 1px solid var(--color-accent-muted);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--color-accent);
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(90, 122, 161, 0.12);
  border: 1px solid var(--color-accent-warm);
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent-muted);
}

.hero__copy h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5vw, 2.6rem);
  line-height: 1.15;
  margin: 0 0 var(--space-md);
}

.hero__copy p {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}

.price-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.price-current {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--color-accent);
}

.price-old {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.card-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-glow);
}

.form-grid {
  display: grid;
  gap: var(--space-md);
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.field-error {
  font-size: 0.75rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
  min-height: 1em;
}

.checkbox-row {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.checkbox-row input {
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.checkbox-row label {
  margin: 0;
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition-med), color var(--transition-med), border-color var(--transition-med), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-muted));
  color: var(--color-on-accent);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1f3d5c, var(--color-accent));
  color: var(--color-on-accent);
  transform: translateY(-1px);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-accent-warm);
  outline-offset: 2px;
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent-muted);
}

.btn-secondary:hover {
  background: var(--color-tint);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-ghost {
  background: var(--color-surface-elevated);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-accent-muted);
  color: var(--color-on-accent);
  border-color: var(--color-accent);
}

.features-strip {
  background: var(--color-surface);
  border-block: 1px solid var(--color-border);
}

.features-strip__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-lg);
}

.feature-chip {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: linear-gradient(160deg, var(--color-surface-elevated), var(--color-surface));
  transition: transform var(--transition-med), box-shadow var(--transition-med), border-color var(--transition-fast);
}

.feature-chip:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-muted);
  box-shadow: var(--shadow-glow);
}

.feature-chip h3 {
  margin: 0 0 var(--space-sm);
  font-size: 1.05rem;
  color: var(--color-accent);
}

.feature-chip p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.benefits {
  background: linear-gradient(180deg, transparent, rgba(42, 74, 110, 0.06));
}

.benefits__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-md);
  counter-reset: bene;
  list-style: none;
  padding: 0;
  margin: 0;
}

.benefits__list li {
  counter-increment: bene;
  position: relative;
  padding: var(--space-lg) var(--space-lg) var(--space-lg) 3rem;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.benefits__list li::before {
  content: counter(bene, decimal-leading-zero);
  position: absolute;
  left: var(--space-md);
  top: var(--space-lg);
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--color-accent-warm);
}

.benefits__list li:hover {
  border-color: var(--color-accent-warm);
  background: var(--color-surface-elevated);
}

.benefits__list h3 {
  margin: 0 0 var(--space-xs);
  font-size: 1rem;
}

.benefits__list p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.detail-block {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-xl);
  align-items: center;
}

.detail-block--flip .detail-block__text {
  order: 2;
}

.detail-block--flip .detail-block__aside {
  order: 1;
}

@media (max-width: 700px) {
  .detail-block--flip .detail-block__text {
    order: 1;
  }

  .detail-block--flip .detail-block__aside {
    order: 2;
  }
}

.detail-block__aside {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px dashed var(--color-border);
}

.usage-steps {
  display: grid;
  gap: var(--space-md);
}

.usage-steps article {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  border-left: 3px solid var(--color-accent);
  background: rgba(255, 255, 255, 0.85);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  transition: background var(--transition-fast);
}

.usage-steps article:hover {
  background: var(--color-surface-elevated);
}

.usage-steps strong {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-on-accent);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.composition-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-surface-elevated);
  color: var(--color-accent);
  font-weight: 600;
}

tr:hover td {
  background: var(--color-tint);
}

.reviews {
  background: var(--color-surface);
}

.reviews__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-lg);
}

.review-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition-med), transform var(--transition-med);
}

.review-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.review-card header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.review-card cite {
  font-style: normal;
  font-weight: 700;
  font-size: 0.95rem;
}

.review-card time {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.review-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.faq details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  margin-bottom: var(--space-sm);
  transition: border-color var(--transition-fast);
}

.faq details:hover {
  border-color: var(--color-accent-muted);
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq details[open] {
  background: var(--color-surface-elevated);
}

.faq p {
  margin: var(--space-md) 0 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.cta-band {
  text-align: center;
  background: linear-gradient(135deg, rgba(42, 74, 110, 0.1), rgba(90, 122, 161, 0.08));
  border-top: 1px solid var(--color-border);
}

.cta-band .btn {
  margin-top: var(--space-md);
}

.disclaimer-box {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.65);
}

.site-footer {
  padding: var(--space-xl) var(--space-md);
  background: var(--color-footer-bg);
  border-top: 1px solid rgba(0, 0, 0, 0.15);
}

.site-footer__inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-lg);
}

.site-footer h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-footer-muted);
  margin: 0 0 var(--space-sm);
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.site-footer a {
  color: var(--color-footer-text);
  text-decoration: none;
  font-size: 0.88rem;
}

.site-footer a:hover {
  color: #ffffff;
}

.site-footer .site-footer__inner p {
  color: var(--color-footer-muted);
  font-size: 0.88rem;
}

.footer-meta {
  font-size: 0.8rem;
  color: var(--color-footer-muted);
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.cookie-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 300;
  padding: var(--space-md);
  background: var(--color-surface-elevated);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -8px 28px rgba(27, 35, 48, 0.12);
  transform: translateY(100%);
  transition: transform var(--transition-med);
}

.cookie-bar.is-visible {
  transform: translateY(0);
}

.cookie-bar__inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.cookie-bar__text {
  flex: 1 1 260px;
  margin: 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.cookie-bar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.cookie-modal-root {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.cookie-modal-root[hidden] {
  display: none;
}

.cookie-modal-root__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  pointer-events: auto;
}

.cookie-modal-root__panel {
  position: relative;
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.cookie-modal-root__panel:focus {
  outline: none;
}

.cookie-modal-root__panel:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.cookie-toggle-list {
  display: grid;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.cookie-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
}

.cookie-toggle-row label {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text);
}

.cookie-modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.cookie-modal-actions .btn {
  flex: 1 1 auto;
  min-width: 120px;
}

.legal-main {
  padding: var(--space-xl) var(--space-md) var(--space-2xl);
}

.legal-article {
  max-width: 820px;
  margin: 0 auto;
  background: var(--color-surface);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.legal-article h1 {
  font-family: var(--font-display);
  margin-top: 0;
}

.legal-article h2 {
  font-size: 1.15rem;
  margin-top: var(--space-xl);
  color: var(--color-accent);
}

.legal-article p,
.legal-article li {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.legal-article .btn {
  margin-bottom: var(--space-lg);
}

.thank-you-main {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--space-md);
}

.thank-card {
  max-width: 560px;
  text-align: center;
  background: var(--color-surface);
  padding: var(--space-2xl) var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-glow);
}

.thank-blocks {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-md) var(--space-2xl);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: var(--space-lg);
}

.thank-block {
  padding: var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

@media (max-width: 1000px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    margin: 0;
    padding: var(--space-md);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-med), opacity var(--transition-med);
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-xs);
  }

  .site-nav a {
    display: block;
    padding: var(--space-sm) var(--space-md);
  }
}

@media (max-width: 520px) {
  .cookie-bar__actions {
    flex-direction: column;
    width: 100%;
  }

  .cookie-bar__actions .btn {
    width: 100%;
  }

  .cookie-modal-actions {
    flex-direction: column;
  }

  .cookie-modal-actions .btn {
    width: 100%;
  }
}