:root {
  --color-primary: #0f172a;
  --color-secondary: #f1f5f9;
  --color-accent: #2563eb;
  --color-bg: #ffffff;
  --color-muted: #64748b;
  --font-main: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --radius: 0;
  --shadow: 0 1px 0 rgba(15, 23, 42, 0.06), 0 12px 40px rgba(15, 23, 42, 0.06);
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --header-h: 4.25rem;
  --transition: 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  --max-w: 72rem;
}

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

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body.page {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-primary);
  background: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1;
}

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #1d4ed8;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0.5rem;
  z-index: 10000;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  border-radius: 2px;
}

.skip-link:focus {
  left: 0.5rem;
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.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: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-secondary);
  min-height: var(--header-h);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.brand__text {
  font-size: 0.95rem;
  max-width: 12rem;
  line-height: 1.2;
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs) var(--spacing-sm);
  justify-content: flex-end;
}

.nav-desktop a {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.35rem 0.45rem;
  border-radius: 2px;
}

.nav-desktop a:hover,
.nav-desktop a:focus-visible {
  background: var(--color-secondary);
  color: var(--color-primary);
}

.nav-desktop a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.burger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-secondary);
  background: var(--color-bg);
  cursor: pointer;
  border-radius: 2px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.burger:hover,
.burger:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.25);
}

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

.burger__bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--color-primary);
  position: relative;
  transition: transform var(--transition);
}

.burger__bar::before,
.burger__bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition), top var(--transition);
}

.burger__bar::before {
  top: -6px;
}

.burger__bar::after {
  top: 6px;
}

.burger[aria-expanded="true"] .burger__bar {
  background: transparent;
}

.burger[aria-expanded="true"] .burger__bar::before {
  top: 0;
  transform: rotate(45deg);
}

.burger[aria-expanded="true"] .burger__bar::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  z-index: 1100;
}

.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(20rem, 92vw);
  height: 100vh;
  background: var(--color-bg);
  border-left: 1px solid var(--color-secondary);
  box-shadow: var(--shadow);
  transform: translateX(100%);
  transition: transform var(--transition);
  z-index: 1200;
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-h) + var(--spacing-sm)) var(--spacing-md)
    var(--spacing-lg);
  overflow-y: auto;
}

.nav-drawer.is-open {
  transform: translateX(0);
}

.nav-drawer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.nav-drawer a {
  display: block;
  padding: 0.65rem 0.75rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  border-radius: 2px;
}

.nav-drawer a:hover,
.nav-drawer a:focus-visible {
  background: var(--color-secondary);
}

.nav-drawer a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

body.nav-open {
  overflow: hidden;
}

.section {
  padding: var(--spacing-xl) var(--spacing-md);
  border-bottom: 1px solid var(--color-secondary);
}

.section__inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.section--hero {
  padding-top: var(--spacing-lg);
  background: linear-gradient(180deg, #fff 0%, var(--color-secondary) 100%);
}

.hero-grid {
  display: grid;
  gap: var(--spacing-lg);
  align-items: start;
}

.hero-copy h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 var(--spacing-sm);
  line-height: 1.15;
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--color-muted);
  margin: 0 0 var(--spacing-md);
  max-width: 38rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.rating {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.rating__stars {
  color: #eab308;
  letter-spacing: 0.05em;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--color-secondary);
  color: var(--color-primary);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

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

.price {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.price--old {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-muted);
  text-decoration: line-through;
}

.order-panel {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-secondary);
  padding: var(--spacing-md);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.order-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.04),
    transparent 40%
  );
}

.order-layout {
  display: grid;
  gap: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.order-figure {
  margin: 0;
  text-align: center;
}

.order-figure img {
  margin: 0 auto;
  max-height: 220px;
  width: auto;
  object-fit: contain;
}

.order-form label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.order-form input,
.order-form textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-secondary);
  border-radius: 2px;
  font: inherit;
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.order-form input:focus,
.order-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.order-form textarea {
  min-height: 5rem;
  resize: vertical;
}

.field {
  margin-bottom: var(--spacing-sm);
}

.field--check {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem;
}

.field--check .field-error {
  flex: 0 0 100%;
  margin-left: 1.75rem;
}

.field--check input {
  width: auto;
  margin-top: 0.25rem;
}

.field-error {
  font-size: 0.75rem;
  color: #b91c1c;
  margin-top: 0.25rem;
  display: none;
}

.field-error.is-visible {
  display: block;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.25rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  border: 1px solid var(--color-accent);
  background: var(--color-accent);
  color: #fff;
  cursor: pointer;
  border-radius: 2px;
  transition: background var(--transition), color var(--transition),
    box-shadow var(--transition), transform 0.15s ease;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.btn:hover {
  background: #1d4ed8;
  color: white;
  border-color: #1d4ed8;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.btn:active {
  transform: translateY(1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-secondary);
  box-shadow: none;
}

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

.section-heading {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 var(--spacing-sm);
}

.section-intro {
  color: var(--color-muted);
  margin: 0 0 var(--spacing-lg);
  max-width: 46rem;
}

.grid-cards {
  display: grid;
  gap: var(--spacing-md);
}

.card {
  position: relative;
  background: var(--color-bg);
  border: 1px solid transparent;
  padding: var(--spacing-md);
  transition: background var(--transition), border-color var(--transition);
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -100%;
  height: 40%;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.85),
    transparent
  );
  opacity: 0;
  transition: top 0.55s ease, opacity 0.35s ease;
  pointer-events: none;
}

.card:hover {
  background: var(--color-secondary);
  border-color: rgba(15, 23, 42, 0.06);
}

.card:hover::after {
  top: 0;
  opacity: 1;
}

.card h3 {
  margin: 0 0 var(--spacing-xs);
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.penta-visual {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.segment-meter {
  display: flex;
  gap: 4px;
  align-items: stretch;
}

.segment-meter__part {
  width: 10px;
  height: 36px;
  background: var(--color-secondary);
  border: 1px solid rgba(15, 23, 42, 0.06);
  transition: background 0.5s ease, box-shadow 0.5s ease;
}

.segment-meter.is-active .segment-meter__part {
  background: var(--color-accent);
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.35);
}

.split-feature {
  display: grid;
  gap: var(--spacing-md);
  align-items: start;
}

.protocol-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--spacing-sm);
}

.protocol-list li {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-secondary);
  border-left: 3px solid var(--color-accent);
  font-size: 0.9375rem;
}

.quote-grid {
  display: grid;
  gap: var(--spacing-md);
}

blockquote {
  margin: 0;
  padding: var(--spacing-md);
  background: var(--color-bg);
  border: 1px solid var(--color-secondary);
  font-size: 0.9375rem;
  color: var(--color-muted);
}

blockquote footer {
  margin-top: var(--spacing-sm);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
}

.faq-item {
  border: 1px solid var(--color-secondary);
  margin-bottom: var(--spacing-sm);
  background: var(--color-bg);
}

.faq-item button {
  width: 100%;
  text-align: left;
  padding: var(--spacing-sm) var(--spacing-md);
  font: inherit;
  font-weight: 600;
  background: var(--color-secondary);
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-sm);
}

.faq-item button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.faq-item__icon {
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item.is-open .faq-item__icon {
  transform: rotate(45deg);
}

.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease;
}

.faq-panel__inner {
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.contact-block {
  display: grid;
  gap: var(--spacing-md);
  max-width: 40rem;
}

.contact-block a.mail {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-accent);
}

.contact-block a.mail:hover {
  text-decoration: underline;
}

.address-block {
  font-style: normal;
  color: var(--color-muted);
  line-height: 1.7;
}

.legal-strip {
  padding: var(--spacing-md);
  background: var(--color-secondary);
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.legal-strip__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  font-size: 0.8125rem;
  color: var(--color-muted);
}

.legal-strip p {
  margin: 0;
}

.site-footer {
  margin-top: auto;
  padding: var(--spacing-lg) var(--spacing-md);
  background: var(--color-primary);
  color: #e2e8f0;
}

.site-footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  gap: var(--spacing-md);
}

.site-footer a {
  color: #cbd5e1;
  text-decoration: none;
}

.site-footer a:hover {
  color: #fff;
  text-decoration: underline;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm) var(--spacing-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-meta {
  font-size: 0.8125rem;
  color: #94a3b8;
}

.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: #fff;
  border-top: 1px solid var(--color-secondary);
  box-shadow: 0 -8px 32px rgba(15, 23, 42, 0.12);
  padding: var(--spacing-md);
  transform: translateY(110%);
  transition: transform var(--transition);
}

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

.cookie-banner__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  gap: var(--spacing-md);
}

.cookie-banner p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-muted);
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 2100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  background: rgba(15, 23, 42, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.cookie-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.cookie-modal__dialog {
  background: #fff;
  max-width: 28rem;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--spacing-md);
  border: 1px solid var(--color-secondary);
  box-shadow: var(--shadow);
}

.cookie-modal__dialog h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.cookie-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-secondary);
  font-size: 0.875rem;
}

.cookie-toggle input:disabled + span {
  opacity: 0.6;
}

.elevator {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--transition), transform 0.7s var(--transition);
}

.elevator.is-inview {
  opacity: 1;
  transform: translateY(0);
}

.policy-page {
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-xl);
}

.policy-page__inner {
  max-width: 48rem;
  margin: 0 auto;
}

.policy-page h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-top: 0;
}

.policy-page h2 {
  font-size: 1.15rem;
  margin-top: var(--spacing-lg);
}

.policy-page p,
.policy-page ul {
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.policy-page ul {
  padding-left: 1.25rem;
}

.date {
  font-size: 0.875rem;
  color: var(--color-muted);
}

.thank-you {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  max-width: 36rem;
  margin: 0 auto;
}

.thank-you h1 {
  margin-top: 0;
}

@media (min-width: 640px) {
  .grid-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-grid {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }

  .order-layout {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .quote-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .burger {
    display: none;
  }

  .nav-desktop {
    display: block;
    flex: 1;
  }

  .grid-cards--triple {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1023px) {
  .nav-desktop {
    display: none;
  }

  .burger {
    display: flex;
  }
}