:root {
  --text: #142341;
  --muted: #4f6188;
  --line: #dde4f1;
  --bg-soft: #f6f8fc;
  --primary: #0d4ed1;
  --primary-dark: #0a3ea7;
  --success: #0a7a4a;
  --danger: #b32735;
  --card-shadow: 0 14px 30px rgba(17, 49, 121, 0.08);
  --radius: 16px;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Work Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.5;
}

a {
  color: inherit;
}

.top-strip {
  background: #0d4ed1;
  color: #ffffff;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  text-decoration: none;
  letter-spacing: 0.01em;
}

.brand span {
  color: var(--primary);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #ffffff;
  border-radius: 10px;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-nav a {
  text-decoration: none;
  color: #25385f;
  font-weight: 600;
  font-size: 0.95rem;
}

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

.site-nav .nav-cta {
  background: var(--primary);
  color: #ffffff;
  padding: 0.55rem 0.85rem;
  border-radius: 10px;
}

main {
  width: min(1180px, calc(100% - 2rem));
  margin: 1.6rem auto 3rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  padding: 2rem;
  box-shadow: var(--card-shadow);
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.82rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--primary);
  font-weight: 800;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  margin-bottom: 0.9rem;
}

h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.1rem);
  margin-bottom: 0.7rem;
}

p {
  margin: 0;
}

.lead {
  color: var(--muted);
  max-width: 58ch;
  font-size: 1.06rem;
}

.button-row {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 11px;
  text-decoration: none;
  font-weight: 700;
  padding: 0.8rem 1.2rem;
  cursor: pointer;
  transition: transform 0.15s ease;
}

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

.btn-primary {
  background: linear-gradient(180deg, #155ae8 0%, #0d45ba 100%);
  color: #ffffff;
}

.btn-secondary {
  border: 1px solid #c9d5f0;
  color: #1f3766;
  background: #ffffff;
}

.benefit-list {
  margin: 1.2rem 0 0;
  padding-left: 1rem;
  color: #2a3d64;
}

.benefit-list li {
  margin-bottom: 0.4rem;
}

.hero-product {
  border: 1px solid #e1e7f2;
  border-radius: var(--radius);
  background: #ffffff;
  display: block;
  text-align: center;
  padding: 1.1rem;
}

.product-image {
  width: min(340px, 98%);
  max-height: 520px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 8px;
  box-shadow: none;
}

.product-price-box {
  width: min(100%, 360px);
  margin: 0.8rem auto 0;
  text-align: center;
  border: 1px solid #e1e7f2;
  border-radius: 12px;
  background: #ffffff;
  padding: 0.7rem 0.8rem;
}

.product-price-box strong {
  display: block;
  font-size: 1.25rem;
  line-height: 1.1;
  color: #0d4ed1;
  margin-bottom: 0.2rem;
}

.product-price-box span {
  display: block;
  font-size: 0.87rem;
  color: #4f6188;
}

.section {
  margin-top: 1.4rem;
}

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

.card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
}

.card-pad {
  padding: 1.2rem;
}

.feature-card h3 {
  font-size: 1.16rem;
  margin-bottom: 0.4rem;
}

.feature-card p {
  color: var(--muted);
}

.burn-highlight {
  border-color: #c6d6f4;
  background: #f8fbff;
}

.burn-highlight ol {
  margin: 0.5rem 0 0.7rem 1.1rem;
  padding: 0;
  color: #2a3f6c;
}

.burn-highlight li + li {
  margin-top: 0.4rem;
}

.burn-highlight p {
  color: #243a68;
  font-weight: 600;
}

.spec-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.spec-row {
  border: 1px solid #e5ebf7;
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  background: var(--bg-soft);
}

.spec-row strong {
  display: block;
  font-size: 0.92rem;
  color: #35508d;
  margin-bottom: 0.2rem;
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.review {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  background: #ffffff;
}

.review strong {
  display: block;
  margin-top: 0.65rem;
  font-size: 0.9rem;
  color: #304a7b;
}

.cta-band {
  margin-top: 1.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.cta-band p {
  color: var(--muted);
}

.page-hero {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
  background: #ffffff;
  margin-bottom: 1rem;
}

.page-hero p {
  color: var(--muted);
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 1rem;
  align-items: start;
}

label {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 0.3rem;
}

.field {
  margin-bottom: 0.75rem;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #c9d6ef;
  border-radius: 10px;
  padding: 0.66rem 0.75rem;
  font-size: 0.98rem;
  color: #142341;
  background: #ffffff;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid #d8e5ff;
  border-color: #93b2f3;
}

.inline-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 0.8rem 0 0.9rem;
}

.checkbox-row input {
  margin-top: 0.2rem;
  width: auto;
}

.checkbox-row label {
  margin: 0;
  font-weight: 500;
}

.btn-block {
  width: 100%;
}

.checkout-side h3 {
  font-size: 1.14rem;
  margin-bottom: 0.5rem;
}

.summary-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.45rem;
}

.summary-total {
  margin-top: 0.7rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--line);
  font-size: 1.08rem;
  font-weight: 800;
}

.notice {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.status {
  margin-top: 0.9rem;
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  border: 1px solid #caddff;
  background: #f6f9ff;
  font-weight: 600;
}

.status.error {
  border-color: #f2c4cb;
  background: #fff4f5;
  color: var(--danger);
}

.status.success {
  border-color: #bfe7d2;
  background: #f1fdf5;
  color: var(--success);
}

.hidden {
  display: none;
}

.legal {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.2rem;
}

.legal section + section {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #e9eef8;
}

.legal h2 {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.legal p,
.legal li {
  color: #2f446f;
}

.legal ul {
  margin: 0.4rem 0 0;
}

.faq-section h2 {
  margin-bottom: 0.7rem;
}

.faq-list {
  display: grid;
  gap: 0.7rem;
}

.faq-item {
  border: 1px solid #dfe7f5;
  border-radius: 12px;
  background: #ffffff;
  padding: 0 0.9rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: #1f3766;
  padding: 0.85rem 0;
  list-style: none;
}

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

.faq-item p {
  margin: 0 0 0.85rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 2rem;
}

.footer-inner {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.1rem 0 1.6rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.footer-links a {
  text-decoration: none;
  color: #2c4370;
  font-size: 0.92rem;
}

.footer-small {
  color: #5b6f97;
  font-size: 0.88rem;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 1.2rem;
  }

  .grid-3,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .spec-table {
    grid-template-columns: 1fr;
  }

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

  .checkout-side {
    order: -1;
  }
}

@media (max-width: 760px) {
  .menu-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 66px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 0.8rem;
    box-shadow: var(--card-shadow);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.55rem;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav .nav-cta {
    text-align: center;
  }
}

@media (max-width: 560px) {
  .header-inner,
  main,
  .footer-inner {
    width: calc(100% - 1.2rem);
  }

  .inline-2 {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 1.9rem;
  }
}