:root {
  --color-primary: #0a1f44;
  --color-primary-soft: #16366f;
  --color-accent: #c62828;
  --color-accent-soft: #f8dede;
  --color-surface: #ffffff;
  --color-surface-alt: #f4f7fb;
  --color-border: #d8e0ef;
  --color-text: #14213d;
  --color-text-muted: #5f6f8d;
  --shadow-soft: 0 18px 45px rgba(10, 31, 68, 0.1);
  --shadow-card: 0 16px 30px rgba(10, 31, 68, 0.08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container-width: min(1120px, calc(100% - 32px));
  --font-body: "Segoe UI", "Trebuchet MS", "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background:
    radial-gradient(circle at top right, rgba(198, 40, 40, 0.09), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.is-hidden {
  display: none;
}

.container {
  width: var(--container-width);
  margin: 0 auto;
}

.section {
  padding: 88px 0;
}

.section--alt {
  background:
    linear-gradient(180deg, rgba(10, 31, 68, 0.04), rgba(10, 31, 68, 0)),
    #fbfcff;
}

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(216, 224, 239, 0.8);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-soft));
  box-shadow: var(--shadow-card);
  font-weight: 800;
}

.brand__text {
  display: grid;
  gap: 4px;
}

.brand__text strong {
  font-size: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.brand__text small {
  color: var(--color-text-muted);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-menu a {
  position: relative;
  font-weight: 600;
  color: var(--color-primary);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
  background: var(--color-accent);
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  border-radius: 999px;
  background: var(--color-primary);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hero__grid,
.footer__grid,
.detail-layout {
  display: grid;
  gap: 28px;
}

.hero__grid {
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.8fr);
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero h1,
.section-heading h2,
.detail-copy h1,
.site-footer h2,
.site-footer h3 {
  margin: 0;
  color: var(--color-primary);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.6rem);
  line-height: 1.02;
  max-width: 11ch;
}

.hero__text,
.section-heading p,
.feature-card p,
.product-card p,
.detail-copy p,
.site-footer p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent), #df3d3d);
  box-shadow: 0 12px 24px rgba(198, 40, 40, 0.25);
}

.btn--ghost {
  color: var(--color-primary);
  border-color: rgba(10, 31, 68, 0.16);
  background: rgba(255, 255, 255, 0.8);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
}

.hero__stats li,
.hero__card,
.feature-card,
.product-card,
.detail-card {
  border: 1px solid rgba(216, 224, 239, 0.95);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-card);
}

.hero__stats li {
  padding: 18px 16px;
  border-radius: var(--radius-md);
}

.hero__stats strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.5rem;
  color: var(--color-primary);
}

.hero__stats span {
  color: var(--color-text-muted);
}

.hero__panel {
  display: grid;
  gap: 18px;
}

.hero__card {
  padding: 26px;
  border-radius: var(--radius-lg);
}

.hero__card--highlight {
  background: linear-gradient(180deg, rgba(10, 31, 68, 0.97), rgba(22, 54, 111, 0.94));
  color: #fff;
}

.hero__card--highlight h2,
.hero__card--highlight p,
.hero__card--highlight strong,
.hero__card--highlight small,
.hero__card--highlight span {
  color: inherit;
}

.hero__label {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 8px 12px;
  border-radius: 999px;
  color: #fff;
  background: rgba(198, 40, 40, 0.9);
  font-size: 0.84rem;
  font-weight: 700;
}

.hero__label--dark {
  color: var(--color-primary);
  background: rgba(10, 31, 68, 0.08);
}

.price-stack {
  display: grid;
  gap: 4px;
  margin-top: 22px;
}

.price-stack strong {
  font-size: 1.8rem;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 34px;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.section-heading p {
  max-width: 46ch;
  margin: 0;
}

.feature-strip,
.product-grid {
  display: grid;
  gap: 22px;
}

.feature-strip {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.feature-card,
.product-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature-card {
  display: grid;
  min-height: 100%;
}

.feature-card__image,
.product-card__image,
.detail-media__image {
  position: relative;
  min-height: 260px;
  background: linear-gradient(135deg, rgba(10, 31, 68, 0.1), rgba(198, 40, 40, 0.08));
}

.feature-card__image::after,
.product-card__image::after,
.detail-media__image::after {
  content: "";
  position: absolute;
  inset: 16px;
  border-radius: calc(var(--radius-lg) - 8px);
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.feature-card__image img,
.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-card__body,
.product-card__body,
.detail-copy,
.detail-card {
  padding: 24px;
}

.feature-card h3,
.product-card h3 {
  margin: 0 0 10px;
  font-size: 1.3rem;
  color: var(--color-primary);
}

.feature-card__link,
.product-card__link {
  display: grid;
  min-height: 100%;
}

.price-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-top: 20px;
}

.price-tag {
  display: grid;
  gap: 4px;
}

.price-tag span {
  font-size: 0.86rem;
  color: var(--color-text-muted);
}

.price-tag strong {
  font-size: 1.38rem;
  color: var(--color-primary);
}

.installment {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-soft);
}

.product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  color: var(--color-accent);
  font-weight: 700;
}

.detail-view {
  padding-top: 20px;
}

.detail-shell {
  width: var(--container-width);
  margin: 0 auto;
}

.detail-back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  color: var(--color-primary);
  font-weight: 700;
}

.detail-layout {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  align-items: start;
}

.detail-media {
  overflow: hidden;
  border-radius: 32px;
  border: 1px solid rgba(216, 224, 239, 0.95);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.detail-media__image {
  min-height: 0;
  padding: 16px;
}

.detail-copy {
  padding: 32px 0 0;
}

.detail-copy .eyebrow {
  margin-bottom: 10px;
}

.detail-copy h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.08;
  margin-bottom: 18px;
}

.detail-description {
  margin-bottom: 28px;
}

.detail-note {
  margin: 0 0 20px;
  padding: 14px 16px;
  border-radius: 18px;
  color: var(--color-primary);
  background: rgba(10, 31, 68, 0.06);
}

.detail-media__image::after {
  display: none;
}

.detail-media__image img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 22px;
  border: 1px solid rgba(216, 224, 239, 0.95);
}

.detail-card {
  border-radius: 28px;
}

.detail-card__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.detail-card__row + .detail-card__row {
  border-top: 1px solid rgba(216, 224, 239, 0.9);
}

.detail-card__row span {
  color: var(--color-text-muted);
}

.detail-card__row strong {
  font-size: 1.3rem;
  color: var(--color-primary);
}

.detail-card .btn {
  width: 100%;
  margin-top: 22px;
}

.site-footer {
  padding: 40px 0 56px;
  color: #fff;
  background: linear-gradient(180deg, #102a59, #0a1f44);
}

.footer__grid {
  grid-template-columns: 1.2fr 1fr 1fr;
  align-items: start;
}

@media (max-width: 1024px) {
  .hero__grid,
  .feature-strip,
  .product-grid,
  .detail-layout,
  .footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .detail-copy {
    padding-top: 0;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .navbar {
    min-height: 76px;
  }

  .nav-toggle {
    display: inline-block;
  }

  .nav-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 16px;
    right: 16px;
    display: grid;
    gap: 4px;
    padding: 14px;
    border-radius: 22px;
    border: 1px solid rgba(216, 224, 239, 0.95);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-card);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.22s ease, transform 0.22s ease;
  }

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

  .nav-menu a {
    padding: 12px 10px;
    border-radius: 14px;
  }

  .nav-menu a:hover,
  .nav-menu a:focus-visible {
    background: rgba(10, 31, 68, 0.05);
  }

  .nav-menu a::after {
    display: none;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .section-heading,
  .hero__stats,
  .feature-strip,
  .product-grid,
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: start;
  }

  .price-row,
  .detail-card__row {
    flex-direction: column;
    align-items: start;
  }

  .detail-media__image {
    min-height: 380px;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 20px, 1120px);
  }

  .hero h1 {
    max-width: 100%;
  }

  .hero__card,
  .feature-card__body,
  .product-card__body,
  .detail-card {
    padding: 20px;
  }

  .feature-card__image,
  .product-card__image {
    min-height: 220px;
  }

  .detail-media__image {
    min-height: 300px;
  }
}