:root {
  --ink: #19324a;
  --navy: #263b5f;
  --blue: #dff3fb;
  --blue-deep: #a9d8ec;
  --blue-pale: #f4fbfe;
  --green: #2e745f;
  --line: #c5e7f3;
  --white: #fff;
  --font-latin: "Lora", serif;
  --font-base: "BIZ UDPGothic", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-base);
  line-height: 1.8;
  background-image: url(../images/back.png);
  background-size: contain;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92px;
  padding: 24px;
  background: var(--white);
  border-bottom: 1px solid #e8eef2;
}

.logo {
  width: 10%;
}

.hero {
  padding: clamp(18px, 4vw, 42px) clamp(14px, 4vw, 42px) 0;
}

.hero-picture {
  width: 60%;
  margin: 0 auto;
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(54px, 8vw, 92px) 0;
}

.js .fade-section {
  opacity: 0;
  transform: translateY(34px);
  transition:
    opacity 0.9s ease,
    transform 0.9s ease;
}

.js .fade-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.lead {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font-family: var(--font-latin);
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  color: #10243a;
  font-family: var(--font-latin);
  font-size: clamp(36px, 7vw, 76px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 28px;
  font-size: clamp(27px, 4.2vw, 42px);
  line-height: 1.32;
  text-align: center;
  letter-spacing: 0.04em;
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(19px, 2.4vw, 21px);
  line-height: 1.45;
  letter-spacing: 0.03em;
}

.intro-text {
  margin-bottom: 28px;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.period-box {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 34px);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 36px rgba(54, 120, 153, 0.12);
}

.period-main {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: baseline;
  font-weight: 700;
}

.period-label {
  color: var(--green);
  font-size: 15px;
}

.period-date {
  color: var(--navy);
  font-family: var(--font-latin);
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.1;
}

.novelty-visual {
  display: grid;
  gap: 16px;
}

.novelty-visual img {
  width: 100%;
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(32, 78, 105, 0.14);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 3vw, 28px);
}

.feature-card,
.product-card {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  box-shadow: 0 14px 34px rgba(41, 102, 133, 0.1);
}

.feature-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--blue-pale);
}

.feature-card-body,
.product-card-body {
  padding: 20px;
}

.feature-card p,
.product-card p {
  margin-bottom: 0;
  font-size: 15px;
}

.detail {
  display: grid;
  grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(26px, 5vw, 60px);
  align-items: center;
}

.detail-image {
  padding: clamp(18px, 3vw, 30px);
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(29, 87, 122, 0.12);
}

.detail-text {
  font-size: clamp(17px, 2vw, 20px);
}

.detail-text strong {
  color: var(--green);
}

.date-inner {
  padding: clamp(28px, 5vw, 48px);
  text-align: center;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(29, 87, 122, 0.12);
}

.date-label {
  margin-bottom: 4px;
  color: var(--green);
  font-family: var(--font-latin);
  font-size: clamp(14px, 2vw, 17px);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.date-main {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: baseline;
  justify-content: center;
  margin-bottom: 26px;
  color: var(--navy);
  font-family: var(--font-latin);
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 700;
  line-height: 1.1;
}

.date-main span {
  font-size: clamp(42px, 8vw, 82px);
}

.date-main em {
  color: var(--green);
  font-style: normal;
  font-size: clamp(28px, 5vw, 52px);
}

.store {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  margin-bottom: 18px;
  padding: 2px 16px;
  color: var(--green);
  font-size: 15px;
  font-weight: 700;
  background: var(--blue);
  border-radius: 999px;
}

.store-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  text-align: left;
}

.store-list li {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px;
  background: var(--blue-pale);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.store-list span {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 32px;
  padding: 2px 12px;
  color: var(--white);
  font-weight: 700;
  background: var(--green);
  border-radius: 999px;
}

.store-list p {
  margin-bottom: 0;
  font-size: 15px;
  font-weight: 700;
}

.note {
  margin-top: 24px;
  padding-top: 18px;
  color: #4d6476;
  font-size: 14px;
  border-top: 1px solid var(--line);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 3vw, 24px);
}

.product-gallery {
  display: grid;
  gap: 10px;
  padding: 12px;
  background: linear-gradient(135deg, rgba(223, 243, 251, 0.8), rgba(255, 255, 255, 0.94));
}

.product-main-image {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--white);
  border-radius: 6px;
}

.product-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.product-thumb {
  display: block;
  padding: 0;
  cursor: pointer;
  background: transparent;
  border: 2px solid transparent;
  border-radius: 8px;
}

.product-thumb img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--white);
  border-radius: 6px;
}

.product-thumb:hover,
.product-thumb:focus-visible,
.product-thumb.is-active {
  border-color: var(--green);
}

.product-price {
  display: flex;
  gap: 6px;
  align-items: baseline;
  margin-bottom: 16px;
  color: var(--navy);
  font-family: var(--font-latin);
  font-size: clamp(40px, 5.8vw, 14px) !important;
  font-weight: 700;
  line-height: 1.2;
}

.product-price span {
  color: #4d6476;
  font-family: var(--font-base);
  font-size: 18px;
  font-weight: 700;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  margin-bottom: 10px;
  padding: 2px 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
  background: var(--blue);
  border-radius: 999px;
}

.color-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.color-list li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 3px 9px;
  color: #314a5e;
  font-size: 13px;
  font-weight: 700;
  background: rgba(244, 251, 254, 0.92);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.color-chip {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  border: 1px solid rgba(25, 50, 74, 0.22);
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.24);
}

.color-black {
  background: #111;
}

.color-navy {
  background: #162743;
}

.color-khaki {
  background: #827246;
}

.color-navy-camel {
  background: linear-gradient(135deg, #142844 0 50%, #b56f35 50% 100%);
}

.color-black-red {
  background: linear-gradient(135deg, #111 0 50%, #9d1d20 50% 100%);
}

.product-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  margin-top: 18px;
  padding: 4px 18px;
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  background: var(--navy);
  border-radius: 999px;
}

.product-link:hover {
  background: var(--green);
}

.site-footer {
  padding: 30px 16px 40px;
  color: #5a7180;
  text-align: center;
  background: var(--white);
  border-top: 1px solid #e8eef2;
}

.site-footer small {
  font-size: 12px;
}

@media (max-width: 820px) {
  .site-header {
    min-height: 76px;
    padding: 18px;
  }

  .logo {
    width: 20%;
  }

  .hero-picture {
    width: 100%;
  }

  .lead,
  .detail {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .product-grid,
  .store-list {
    grid-template-columns: 1fr;
  }

  .feature-card img {
    aspect-ratio: 5 / 3;
  }
}

@media (max-width: 520px) {
  body {
    line-height: 1.72;
  }

  .section {
    width: min(100% - 24px, 1120px);
    padding: 48px 0;
  }

  .hero {
    padding-inline: 10px;
  }

  .intro-text {
    font-size: 17px;
  }

  .date-inner {
    padding: 26px 16px;
  }

  .date-main {
    gap: 2px 10px;
  }

  .store {
    width: 100%;
    border-radius: 8px;
  }

  .feature-card-body,
  .product-card-body {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .fade-section {
    opacity: 1;
    transform: none;
    transition: none;
  }
}