@charset "UTF-8";

:root {
  color-scheme: light;
  --ink: #21475a;
  --muted: #537384;
  --blue: #136a88;
  --yellow: #ffde70;
  --sky: #eaf8fc;
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  color: var(--ink);
  background: #fff;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-size: 1rem;
  line-height: 1.95;
}

a {
  color: inherit;
  text-underline-offset: 0.3em;
}

a:focus-visible {
  outline: 3px solid #087c9c;
  outline-offset: 6px;
}

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

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

.wrap {
  width: min(1220px, calc(100% - 96px));
  margin-inline: auto;
}

.skip {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 12px 20px;
  background: var(--yellow);
  transform: translateY(-160%);
}

.skip:focus {
  transform: translateY(0);
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 94px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
}

.brand-icon {
  width: 54px;
  height: 54px;
  flex-shrink: 0;
  border-radius: 15px;
}

.brand-small {
  margin-left: 0.25em;
  font-size: 0.875rem;
}

.nav-link {
  padding: 9px 20px;
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  border: 1px solid #a9c8d1;
  border-radius: 999px;
}

.hero {
  position: relative;
  isolation: isolate;
  min-height: 720px;
  overflow: hidden;
  background: #d0eff9;
}

.hero-art {
  position: absolute;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 56%;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(90deg, #f0fbfff5 0%, #effaffd9 24%, #effaff80 43%, transparent 65%);
}

.hero-inner {
  display: flex;
  align-items: center;
  min-height: 720px;
  padding-block: 75px;
}

.hero-copy {
  width: 56%;
}

.eyebrow {
  margin-bottom: 24px;
  color: var(--blue);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

h1 {
  margin-bottom: 25px;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(2.3rem, 4.2vw, 3.6rem);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: -0.045em;
}

h1 span {
  color: #126582;
}

.hero-description {
  margin-bottom: 29px;
  font-weight: 500;
  text-shadow: 0 1px 8px #ffffffb0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;
  padding: 17px 28px;
  border: 1px solid #c8a33860;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 6px 0 #d1b34b30;
  transition: background 150ms ease, transform 150ms ease;
}

.button-yellow {
  color: #3f421e;
  background: var(--yellow);
}

.button:hover {
  background: #ffeaa3;
  transform: translateY(-2px);
}

.purchase-note {
  margin: 16px 0 0;
  font-size: 0.8125rem;
}

.hero-greeting {
  position: absolute;
  right: 9%;
  bottom: 32px;
  padding: 12px 24px;
  border-radius: 999px;
  background: #fffef0ed;
  color: #476054;
  font-weight: 700;
  transform: rotate(-4deg);
  box-shadow: 0 4px 20px #244b5320;
}

.statement {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 36px;
  padding: 28px 20px;
  color: #fff;
  background: var(--blue);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 700;
}

.statement span:nth-child(2) {
  color: var(--yellow);
}

.concept {
  padding-block: 95px;
}

.concept > .eyebrow {
  margin-bottom: 36px;
  text-align: center;
}

.concept-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 60px;
}

.workshop-image {
  width: 100%;
  aspect-ratio: 1.12;
  object-fit: cover;
  border-radius: 48% 48% 10px 10px;
}

h2 {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: clamp(1.75rem, 2.6vw, 2.5rem);
  line-height: 1.65;
  letter-spacing: -0.03em;
}

.concept-copy p {
  color: #456472;
}

.concept-copy p:last-child {
  margin-bottom: 0;
}

.concept-copy strong {
  color: var(--blue);
}

.experiment {
  padding-block: 70px 40px;
  background: var(--sky);
}

.section-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 25px;
}

.index-label {
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
}

.product-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  align-items: center;
  gap: 55px;
}

.product-image {
  width: 100%;
  border: 8px solid white;
  border-radius: 12px;
  box-shadow: 0 12px 35px #43839916;
  transform: rotate(-2deg);
}

.product-type {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.875rem;
}

.product-copy h2 {
  margin-bottom: 18px;
}

.product-price {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-block: 25px 12px;
  font-size: 0.875rem;
}

.product-price strong {
  font-size: 1.9rem;
}

.product-price strong span {
  padding-left: 5px;
  font-size: 1rem;
}

.text-link {
  display: inline-block;
  padding-block: 8px;
  color: var(--blue);
  font-weight: 700;
}

.text-link span {
  margin-left: 25px;
}

.dialogue {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 36px;
  margin-top: 40px;
  padding-top: 25px;
  border-top: 1px dashed #88b8c5;
}

.dialogue p {
  margin-bottom: 0;
  font-weight: 700;
}

.dialogue span {
  margin-right: 10px;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 400;
}

.invitation {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  align-items: center;
  gap: 75px;
  padding-block: 85px;
}

.invitation h2 {
  margin-bottom: 18px;
}

.invitation .button {
  margin-top: 15px;
}

.keeper-note {
  padding: 32px;
  border: 1px solid #eadba2;
  border-radius: 16px;
  background: #fff8db;
  transform: rotate(-2deg);
}

.note-number {
  display: inline-block;
  margin-bottom: 16px;
  color: #716022;
  font-size: 0.875rem;
}

.keeper-note h3 {
  font-size: 1.45rem;
  line-height: 1.65;
}

.keeper-note p {
  color: #59664b;
}

.keeper-note .song {
  margin-bottom: 0;
  color: #6d631a;
  font-size: 0.875rem;
}

.footer {
  padding-block: 40px 22px;
  background: #dff2f6;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
  font-weight: 700;
}

.footer p:not(.footer-brand) {
  color: var(--muted);
  font-size: 0.8125rem;
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  font-size: 0.875rem;
}

.footer nav a {
  padding-block: 10px;
  text-decoration: none;
}

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

.copyright {
  margin-top: 28px;
  margin-bottom: 0;
}

@media (max-width: 1000px) {
  .wrap {
    width: calc(100% - 48px);
  }

  .hero-copy {
    width: 63%;
  }

  .concept-grid,
  .product-grid,
  .invitation {
    gap: 32px;
  }

  .desktop-break {
    display: none;
  }
}

@media (max-width: 700px) {
  .wrap {
    width: calc(100% - 40px);
  }

  .header {
    min-height: 84px;
    gap: 12px;
  }

  .brand {
    gap: 8px;
    font-size: 0.875rem;
    line-height: 1.5;
  }

  .brand-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    flex-shrink: 0;
  }

  .brand-small {
    display: block;
    margin-left: 0;
  }

  .nav-link {
    max-width: 114px;
    flex-shrink: 0;
    padding: 7px 10px;
    font-size: 0.875rem;
  }

  .hero {
    min-height: 0;
    padding-bottom: 320px;
  }

  .hero-art {
    top: auto;
    bottom: 0;
    height: 390px;
    object-position: 72% center;
  }

  .hero::before {
    background: linear-gradient(180deg, #edfaff 0%, #edfaff 50%, #edfaff00 72%);
  }

  .hero-inner {
    min-height: 0;
    padding-block: 40px 5px;
  }

  .hero-copy {
    width: 100%;
  }

  h1 {
    font-size: clamp(1.9rem, 7.4vw, 3rem);
  }

  .hero .eyebrow {
    font-size: 0.8125rem;
    letter-spacing: 0;
  }

  .hero-greeting {
    bottom: 0;
    right: 20px;
    font-size: 0.875rem;
  }

  .statement {
    gap: 12px;
    padding-inline: 14px;
    font-size: 0.875rem;
  }

  .concept-grid,
  .product-grid,
  .invitation {
    grid-template-columns: 1fr;
  }

  .concept,
  .invitation {
    padding-block: 55px;
  }

  .workshop-image {
    max-height: 430px;
    aspect-ratio: 1.25;
    border-radius: 28px;
  }

  .experiment {
    padding-block: 45px 30px;
  }

  .section-top {
    align-items: start;
    gap: 12px;
  }

  .index-label {
    font-size: 0.75rem;
    white-space: nowrap;
  }

  .product-grid {
    gap: 28px;
  }

  .product-image {
    transform: none;
  }

  .dialogue {
    justify-content: start;
    margin-top: 30px;
  }

  .keeper-note {
    transform: none;
    padding: 26px;
  }

  .footer-grid {
    display: block;
  }

  .footer nav {
    gap: 8px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }
}