:root {
  --primary: #0c3f6a;
  --secondary: #b0cee8;
  --text: #0c2338;
  --light: #f4f9ff;
  --white: #ffffff;
  --accent: #083054;
  --shadow: 0 10px 24px rgba(12, 63, 106, 0.16);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text);
  background: var(--light);
  line-height: 1.6;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:focus,
button:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.container {
  width: min(1120px, 94%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 2px solid var(--secondary);
}

.header-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-weight: 700;
}

.brand img {
  width: 38px;
  height: 38px;
}

.menu-toggle {
  display: none;
  background: var(--primary);
  color: var(--white);
  border: 0;
  border-radius: 8px;
  padding: 10px 12px;
}

.top-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.top-menu a {
  font-weight: 600;
  color: var(--accent);
  transition: color 0.2s ease;
}

.top-menu a:hover {
  color: var(--primary);
}

.hero {
  padding: 42px 0 26px;
  background: linear-gradient(130deg, var(--secondary), #d7e8f8 55%, #ecf5ff);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.18;
  color: var(--accent);
}

.hero p {
  margin: 0 0 18px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-block;
  border: 0;
  border-radius: 10px;
  font-weight: 700;
  cursor: pointer;
  padding: 12px 18px;
  text-align: center;
}

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

.btn-alt {
  background: var(--white);
  color: var(--accent);
  border: 1px solid var(--primary);
}

.section {
  padding: 50px 0;
}

.section:nth-child(even) {
  background: var(--white);
}

.section:nth-child(odd) {
  background: #eaf3fc;
}

.section h2 {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

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

.card {
  background: var(--white);
  border: 1px solid #c2d8ec;
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.card i {
  color: var(--primary);
  font-size: 1.35rem;
}

.card h3 {
  margin: 10px 0 8px;
  color: var(--accent);
  font-size: 1.1rem;
}

.product-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  background: var(--white);
  border: 2px solid var(--secondary);
  border-radius: var(--radius);
  padding: 18px;
}

.price {
  font-size: 1.55rem;
  margin: 12px 0;
  color: var(--primary);
  font-weight: 700;
}

.tag-list {
  padding-left: 18px;
  margin: 10px 0 0;
}

.faq-item {
  background: var(--white);
  border: 1px solid #c2d8ec;
  border-radius: 12px;
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item button {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border: 0;
  background: #edf6ff;
  color: var(--accent);
  font-weight: 700;
  cursor: pointer;
}

.faq-content {
  display: none;
  padding: 0 16px 14px;
}

.faq-item.active .faq-content {
  display: block;
}

.reviews {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.review {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid #c2d8ec;
  padding: 14px;
}

.form-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

form {
  background: var(--white);
  border: 1px solid #c2d8ec;
  border-radius: var(--radius);
  padding: 18px;
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid #8bb1d2;
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 10px;
  font: inherit;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.map-wrap iframe {
  width: 100%;
  max-width: 100%;
  border: 0;
  border-radius: var(--radius);
}

.disclaimer {
  background: #dcecff;
  color: #06243f;
  border: 1px solid #b7d0e8;
  border-radius: 12px;
  padding: 14px;
  margin-top: 18px;
}

.facts-wrap {
  margin-top: 18px;
  background: #ffffff;
  border: 2px solid var(--secondary);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}

.facts-caption {
  margin: 10px 0 0;
  color: var(--accent);
}

.facts-text {
  margin-top: 8px;
  color: var(--text);
}

.facts-text .tag-list {
  margin-top: 0;
  padding-left: 18px;
}

.fda-disclaimer {
  margin-top: 10px;
  font-size: 0.82rem;
  line-height: 1.35;
  color: #e6f1fb;
}

.choose-layout,
.usage-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.info-panel {
  background: linear-gradient(160deg, #ffffff, #e9f3fd);
  border: 1px solid #bfd7eb;
  border-radius: 14px;
  padding: 16px;
  box-shadow: var(--shadow);
}

.info-panel h3 {
  margin: 0 0 10px;
  color: #062f50;
}

.highlight-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 10px 0 14px;
}

.chip {
  background: #0c3f6a;
  color: #e6f1fb;
  border-radius: 999px;
  padding: 10px 12px;
  font-weight: 700;
  font-size: 0.92rem;
  text-align: center;
}

.chip i {
  color: #b0cee8;
  margin-right: 6px;
}

.characteristics-accordion {
  background: transparent;
}

.acc-item {
  background: #ffffff;
  border: 1px solid #bfd7eb;
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 10px;
  box-shadow: 0 6px 16px rgba(12, 63, 106, 0.06);
}

.acc-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 0;
  background: #edf6ff;
  color: #062f50;
  padding: 14px 14px;
  cursor: pointer;
  font-weight: 800;
}

.acc-left {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.acc-left i {
  color: var(--primary);
  font-size: 1.15rem;
}

.acc-meta {
  margin-left: auto;
  color: var(--primary);
  font-weight: 900;
}

.acc-chevron {
  color: var(--primary);
  transition: transform 0.18s ease;
}

.acc-item.active .acc-trigger {
  background: linear-gradient(160deg, #eaf3fc, #ffffff);
}

.acc-item.active .acc-chevron {
  transform: rotate(180deg);
}

.acc-panel {
  padding: 0 14px 14px;
  color: var(--text);
}

.acc-panel p {
  margin: 10px 0 0;
}

.site-footer {
  background: var(--accent);
  color: #dbeafb;
  padding: 22px 0 26px;
}

.footer-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 10px;
}

.footer-menu a {
  color: #dbeafb;
}

.footer-meta {
  font-size: 0.95rem;
}

.site-footer .footer-meta p:not(.fda-disclaimer) {
  color: #ffffff;
}

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

.to-top {
  position: fixed;
  right: 15px;
  bottom: 15px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 0;
  background: var(--primary);
  color: var(--white);
  cursor: pointer;
  display: none;
  z-index: 1200;
}

.cookie-banner {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 14px;
  background: #052845;
  color: #f1f7fe;
  border-radius: 12px;
  padding: 14px;
  z-index: 1300;
  box-shadow: var(--shadow);
  display: none;
}

.cookie-banner.show {
  display: block;
}

.cookie-banner p {
  margin: 0 0 10px;
}

.cookie-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.page-hero {
  padding: 36px 0;
  background: linear-gradient(120deg, var(--secondary), #edf6ff);
}

@media (max-width: 900px) {
  .hero-grid,
  .product-box,
  .form-wrap,
  .card-grid,
  .reviews,
  .choose-layout,
  .usage-layout,
  .highlight-strip {
    grid-template-columns: 1fr 1fr;
  }

  .highlight-strip {
    gap: 10px;
  }
}

@media (max-width: 700px) {
  .menu-toggle {
    display: inline-block;
  }

  .top-menu {
    display: none;
    width: 100%;
    padding-bottom: 10px;
  }

  .top-menu.open {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .header-wrap {
    flex-wrap: wrap;
    padding: 10px 0;
  }

  .hero-grid,
  .product-box,
  .form-wrap,
  .card-grid,
  .reviews,
  .choose-layout,
  .usage-layout,
  .highlight-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 320px) {
  .container {
    width: 96%;
  }

  .hero h1 {
    font-size: 1.4rem;
  }

  .btn {
    width: 100%;
  }
}