:root {
  --primary: #12345b;
  --primary-dark: #0b2542;
  --accent: #e59a22;
  --text: #1f2933;
  --muted: #667085;
  --light: #f5f7fa;
  --white: #ffffff;
  --border: #e1e6ec;
  --success-bg: #eef8f1;
  --warning-bg: #fff8e8;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.narrow {
  max-width: 820px;
}

.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-content {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.menu {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.menu a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.9rem;
}

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

.hero {
  background: linear-gradient(135deg, #f5f8fc, #ffffff);
  padding: 76px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  align-items: center;
  gap: 60px;
}

.tag,
.section-label {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 1.3px;
}

h1 {
  color: var(--primary-dark);
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.12;
  margin: 16px 0;
  letter-spacing: -1.5px;
}

h2 {
  color: var(--primary-dark);
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  line-height: 1.2;
  margin: 12px 0 24px;
  letter-spacing: -0.6px;
}

h3 {
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.hero-subtitle {
  color: var(--muted);
  font-size: 1.15rem;
  margin-bottom: 24px;
}

.quick-info {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.quick-info span {
  background: var(--white);
  border: 1px solid var(--border);
  color: var(--primary);
  border-radius: 20px;
  padding: 7px 12px;
  font-size: 0.85rem;
  font-weight: 700;
}

.product-image-box {
  background: var(--white);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(18, 52, 91, 0.14);
}

.product-image {
  width: 100%;
  height: 520px;
  object-fit: contain;
  padding: 20px;
  background: var(--white);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 30px 0 10px;
}

.gallery figure {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
}

.gallery img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.gallery figcaption {
  padding: 12px 14px;
  font-size: 0.85rem;
  color: var(--muted);
}

.btn {
  display: inline-block;
  border: none;
  border-radius: 7px;
  padding: 15px 22px;
  font-size: 0.9rem;
  font-weight: 800;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  opacity: 0.92;
}

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

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

.small-note {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 14px;
}

.section {
  padding: 80px 0;
}

.section-light {
  background: var(--light);
}

.section p {
  margin-bottom: 18px;
  color: #4b5563;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 34px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 25px;
}

.card p {
  font-size: 0.94rem;
  margin-bottom: 0;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  background: #eaf1f9;
  color: var(--primary);
  border-radius: 50%;
  font-weight: 800;
  margin-bottom: 18px;
}

.two-columns {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: start;
}

.highlight-box {
  background: var(--success-bg);
  border-radius: 12px;
  padding: 28px;
  border: 1px solid #d2ead8;
}

.check-list {
  list-style: none;
}

.check-list li {
  margin: 12px 0;
  padding-left: 25px;
  position: relative;
}

.check-list li::before {
  content: "✓";
  color: #25834a;
  font-weight: bold;
  position: absolute;
  left: 0;
}

.warning-box {
  background: var(--warning-bg);
  border: 1px solid #f1db9d;
  border-radius: 10px;
  padding: 25px;
  margin-top: 30px;
}

.warning-box ul {
  padding-left: 20px;
  color: #4b5563;
}

.price-section {
  background: var(--primary);
  color: var(--white);
  padding: 78px 0;
}

.price-section h2,
.price-section p {
  color: var(--white);
}

.light-note {
  color: #dbe5f0;
}

.final-cta {
  text-align: center;
}

.final-cta .btn {
  margin-top: 14px;
}

.site-footer {
  background: #101c2b;
  color: #dce5ef;
  padding: 55px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 0.8fr;
  gap: 40px;
}

.site-footer h3 {
  color: var(--white);
  margin-bottom: 15px;
}

.site-footer p {
  color: #bdc9d6;
  font-size: 0.9rem;
  margin-bottom: 9px;
}

.site-footer a {
  display: block;
  color: #dce5ef;
  text-decoration: none;
  margin-bottom: 9px;
  font-size: 0.9rem;
}

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

.affiliate-disclosure {
  border-top: 1px solid rgba(255,255,255,0.15);
  border-bottom: 1px solid rgba(255,255,255,0.15);
  margin-top: 35px;
  padding: 24px 0;
}

.copyright {
  padding-top: 20px;
  text-align: center;
}

@media (max-width: 800px) {
  .header-content {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  .menu {
    gap: 12px;
  }

  .hero {
    padding: 48px 0;
  }

  .hero-grid,
  .two-columns {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .product-image {
    height: 400px;
  }

  .cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 520px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .btn {
    width: 100%;
  }

  h1 {
    font-size: 2rem;
  }

  .section {
    padding: 56px 0;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 25px;
}

.contact-form label {
  font-weight: 700;
  color: var(--primary-dark);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font: inherit;
  color: var(--text);
  background: var(--white);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid #b9d2ec;
  border-color: var(--primary);
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 10px 0;
  font-weight: normal !important;
  color: var(--muted) !important;
  font-size: 0.9rem;
}

.checkbox-label input {
  width: auto;
  margin-top: 5px;
}

.checkbox-label a {
  color: var(--primary);
}