/* 本町の陶芸教室「土夢」— トーン参考: なごみ荘（穏やか・自然・余白） */

:root {
  --color-bg: #f6f3ec;
  --color-bg-warm: #f0ece3;
  --color-surface: #fffcf7;
  --color-text: #2a2f27;
  --color-text-muted: #5c6358;
  --color-accent: #4f6f5c;
  --color-accent-light: #6d8f7a;
  --color-line: rgba(74, 90, 78, 0.18);
  --color-hero-overlay: linear-gradient(
    120deg,
    rgba(32, 38, 32, 0.72) 0%,
    rgba(32, 38, 32, 0.38) 45%,
    rgba(42, 52, 44, 0.55) 100%
  );
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --font-sans: "Noto Sans JP", system-ui, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 4.25rem;
  --shadow-soft: 0 18px 40px rgba(42, 47, 39, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.25s var(--ease-out), opacity 0.25s var(--ease-out);
}

a:hover {
  color: var(--color-accent-light);
}

/* ----- ロード演出 ----- */
body.is-loading {
  overflow: hidden;
}

.loader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  background: var(--color-bg);
  transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}

.loader[hidden] {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__inner {
  text-align: center;
}

.loader__mark {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  border: 2px solid var(--color-line);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.loader__text {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ----- ヘッダー ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  height: var(--header-h);
  background: rgba(246, 243, 236, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}

.site-header.is-scrolled {
  background: rgba(255, 252, 247, 0.94);
  box-shadow: var(--shadow-soft);
}

.site-header__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text);
  line-height: 1.3;
}

.brand__name:hover {
  color: var(--color-accent);
}

.brand__tag {
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* 狭い幅：店名ブロックがヘッダー高を超えないよう縮小 */
@media (max-width: 639px) {
  :root {
    --header-h: 4.5rem;
  }

  .brand {
    gap: 0.05rem;
    flex: 1 1 0;
    padding-right: 0.35rem;
  }

  .brand__name {
    font-size: 0.72rem;
    letter-spacing: 0.02em;
    line-height: 1.2;
  }

  .brand__tag {
    font-size: 0.45rem;
    letter-spacing: 0.1em;
    line-height: 1.15;
  }

  .site-header__inner {
    gap: 0.5rem;
  }
}

.nav-desktop {
  display: none !important;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
}

@media (min-width: 480px) {
  .header-actions {
    gap: 0.65rem;
  }
}

.lang-switch {
  display: flex;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  overflow: hidden;
  background: var(--color-surface);
}

.lang-switch__btn {
  margin: 0;
  padding: 0.32rem 0.5rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background 0.2s var(--ease-out), color 0.2s var(--ease-out);
}

.lang-switch__btn.is-active {
  background: var(--color-accent);
  color: #fff;
}

.lang-switch__btn:hover:not(.is-active) {
  color: var(--color-accent);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.48rem 0.75rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: #fff !important;
  background: var(--color-accent);
  border-radius: 999px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.header-cta:hover {
  color: #fff !important;
  background: var(--color-accent-light);
}

@media (min-width: 600px) {
  .header-cta {
    padding: 0.55rem 1.1rem;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
  }
}

.menu-toggle {
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}

body.nav-open .menu-toggle span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

body.nav-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .menu-toggle span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-mobile {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: none;
  background: rgba(255, 252, 247, 0.98);
  padding: 1.5rem 1.25rem calc(2rem + env(safe-area-inset-bottom, 0));
  transform: translateX(100%);
  transition: transform 0.45s var(--ease-out);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  z-index: 1050;
}

body.nav-open .nav-mobile {
  transform: translateX(0);
}

.nav-mobile ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-mobile a {
  display: block;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.95rem;
  color: var(--color-text);
}

.nav-mobile a small {
  display: block;
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin-top: 0.15rem;
}

.nav-mobile a small:empty {
  display: none;
  margin: 0;
}

.nav-mobile a.is-current {
  color: var(--color-accent);
}

/* ----- ページヒーロー（フルスクリーン） ----- */
.page-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-h) + 2rem) 1.5rem 4rem;
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.04);
  animation: heroZoom 18s var(--ease-out) forwards;
}

@keyframes heroZoom {
  to {
    transform: scale(1);
  }
}

.page-hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-hero-overlay);
}

.page-hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

.page-hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  color: #fff;
  text-align: center;
}

.page-hero__label {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(14px);
  animation: fadeUp 0.9s var(--ease-out) 0.15s forwards;
}

.page-hero__title {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 6vw, 3.25rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.25;
  opacity: 0;
  transform: translateY(22px);
  animation: fadeUp 1s var(--ease-out) 0.28s forwards;
}

.page-hero__lead {
  margin: 0 auto;
  font-size: 0.98rem;
  line-height: 2;
  max-width: 34em;
  opacity: 0;
  transform: translateY(18px);
  animation: fadeUp 1s var(--ease-out) 0.42s forwards;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.25);
}

.page-hero__line {
  width: 0;
  max-width: 120px;
  height: 1px;
  background: rgba(255, 255, 255, 0.65);
  margin: 1.75rem auto 0;
  animation: lineGrow 1.1s var(--ease-out) 0.55s forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes lineGrow {
  to {
    width: 120px;
  }
}

.scroll-hint {
  position: absolute;
  right: 1.75rem;
  bottom: 2rem;
  z-index: 2;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: floatY 3s ease-in-out infinite;
}

@media (min-width: 768px) {
  .scroll-hint {
    display: flex;
  }
}

.scroll-hint::after {
  content: "";
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.7), transparent);
}

@keyframes floatY {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(6px);
  }
}

/* ----- 本文レイアウト ----- */
.main {
  padding-bottom: 4rem;
}

.section {
  max-width: 920px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}

.section--wide {
  max-width: 1080px;
}

.section__head {
  margin-bottom: 2rem;
}

.section__eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.section__lead {
  margin: 1rem 0 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.card-grid {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  .card-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
}

.card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.15rem;
}

.card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

/* セクション内写真・分割用（枠なし） */
.section-photo {
  margin: 0 0 2rem;
}

.section-photo img {
  width: 100%;
  height: auto;
  display: block;
}

.section-split {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 840px) {
  .section-split--2 {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .section-split--2 .section-photo {
    margin: 0;
  }
}

.card-grid .stack-entry {
  border-bottom: none;
  padding: 0;
}

.stack-entry {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-line);
}

.stack-entry:last-child {
  border-bottom: none;
}

.stack-entry h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-serif);
  font-size: 1.12rem;
}

.stack-entry p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

/* ホーム：紹介ブロック */
.home-intro {
  background: var(--color-bg-warm);
  border: none;
}

.home-intro__wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .home-intro__wrap {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.home-intro__photo {
  margin: 0;
}

.home-intro__photo img {
  width: 100%;
  display: block;
}

.home-intro__inner {
  max-width: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

@media (min-width: 768px) {
  .home-intro__inner {
    padding-right: 0.5rem;
  }
}

.home-intro__poem {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  line-height: 2.35;
  letter-spacing: 0.04em;
}

.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.news-list li {
  border-bottom: 1px solid var(--color-line);
}

.news-list a {
  display: grid;
  gap: 0.35rem;
  padding: 1.25rem 0;
  color: var(--color-text);
}

.news-list a:hover {
  color: var(--color-accent);
}

.news-list time {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.news-list span {
  font-size: 0.95rem;
}

.note-box {
  margin-top: 1.5rem;
  padding: 1.25rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  border-top: 1px solid var(--color-line);
}

/* アクセス */
.access-block {
  display: grid;
  gap: 2rem;
}

@media (min-width: 800px) {
  .access-block {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.access-block dl {
  margin: 0;
}

.access-block dt {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-top: 1.25rem;
}

.access-block dt:first-of-type {
  margin-top: 0;
}

.access-block dd {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
}

.map-embed {
  aspect-ratio: 4/3;
  border-radius: 0;
  overflow: hidden;
  border: none;
  min-height: 280px;
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* 料金・体験 */
.price-tag {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-accent);
  margin: 0.5rem 0 0;
}

.price-note {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin: 0.75rem 0 0;
}

.bullet-list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* フォーム */
.form-grid {
  display: grid;
  gap: 1.25rem;
  max-width: 560px;
}

.form-row label {
  display: block;
  font-size: 0.82rem;
  margin-bottom: 0.4rem;
  letter-spacing: 0.04em;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font: inherit;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  background: var(--color-surface);
}

.form-row textarea {
  min-height: 120px;
  resize: vertical;
}

.form-actions {
  margin-top: 0.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff !important;
  background: var(--color-accent);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: background 0.25s var(--ease-out), transform 0.2s;
  text-decoration: none;
}

a.btn-primary:hover {
  color: #fff !important;
}

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

.form-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 1rem;
}

/* Works ギャラリー */
.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.work-card {
  position: relative;
  border-radius: 0;
  overflow: hidden;
  aspect-ratio: 1;
  border: none;
  background: var(--color-bg-warm);
}

.work-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.work-card:hover img {
  transform: scale(1.05);
}

.work-card__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.65), transparent);
  color: #fff;
  font-size: 0.78rem;
}

/* フッター */
.site-footer {
  margin-top: 3rem;
  padding: 3rem 1.5rem 2.5rem;
  background: #2e3530;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.85rem;
}

.site-footer__inner {
  max-width: 920px;
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
  color: rgba(255, 255, 255, 0.9);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
}

.site-footer a:hover {
  color: #fff;
}

@media (min-width: 640px) {
  .site-footer__inner {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}

.footer-copy {
  margin: 0.75rem 0 0;
  font-size: 0.78rem;
  opacity: 0.75;
}

.page-top {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

@media (min-width: 640px) {
  .page-top {
    margin-top: 0;
    text-align: right;
  }
}