/* =========================================
   HISEKI - Coin Ring Order Made Shop
   Stylesheet
   ========================================= */

/* ---------- Reset / Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #efecec;
  --bg-alt: #e5e1e1;
  --text: rgba(37, 37, 37, 0.85);
  --text-soft: rgba(37, 37, 37, 0.65);
  --text-strong: #252525;
  --line: rgba(37, 37, 37, 0.18);
  --accent: #806a55;
  --accent-dark: #5b4a3a;
  --white: #fbfaf9;
  --max: 1180px;
  --pad: clamp(20px, 4vw, 48px);
  --serif: "Trirong", "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Quattrocento Sans", "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --radius: 4px;
  --transition: 0.3s ease;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 15px;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

a:hover {
  opacity: 0.7;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.section {
  padding: clamp(60px, 10vw, 120px) 0;
}

.section--tight {
  padding: clamp(40px, 6vw, 72px) 0;
}

.section-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: 0.08em;
  color: var(--text-strong);
  text-align: center;
  margin-bottom: 12px;
}

.section-title__sub {
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--text-soft);
  margin-bottom: 56px;
  text-transform: uppercase;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.32em;
  color: var(--text-strong);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo img {
  height: 38px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.5vw, 30px);
}

.site-nav a {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--text);
  position: relative;
  padding: 6px 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--text-strong);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  width: 32px;
  height: 32px;
  cursor: pointer;
  padding: 0;
  position: relative;
}

.nav-toggle span {
  position: absolute;
  left: 4px;
  right: 4px;
  height: 1px;
  background: var(--text-strong);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle span:nth-child(1) { top: 10px; }
.nav-toggle span:nth-child(2) { top: 16px; }
.nav-toggle span:nth-child(3) { top: 22px; }

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 820px) {
  .nav-toggle {
    display: block;
  }
  .site-nav {
    position: fixed;
    inset: 76px 0 0 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: flex-start;
    padding: 40px var(--pad);
    gap: 22px;
    visibility: hidden;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity var(--transition), transform var(--transition), visibility 0s linear 0.3s;
    z-index: 50;
  }
  .site-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateX(0);
    transition: opacity var(--transition), transform var(--transition), visibility 0s;
  }
  .site-nav a {
    font-size: 16px;
    letter-spacing: 0.2em;
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  height: clamp(420px, 80vh, 680px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: linear-gradient(135deg, #d6cfc6 0%, #b8a995 100%);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.18), transparent 50%),
                    radial-gradient(circle at 70% 70%, rgba(0,0,0,0.18), transparent 50%);
  z-index: 1;
}

.hero__inner {
  position: relative;
  z-index: 2;
  color: var(--white);
  padding: 0 var(--pad);
}

.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 5.5vw, 56px);
  letter-spacing: 0.12em;
  line-height: 1.4;
  margin-bottom: 20px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

.hero__sub {
  font-size: clamp(13px, 1.6vw, 16px);
  letter-spacing: 0.18em;
  line-height: 2;
  max-width: 640px;
  margin: 0 auto;
  text-shadow: 0 1px 6px rgba(0,0,0,0.3);
}

.hero__sub--en {
  margin-top: 14px;
  font-style: italic;
  opacity: 0.9;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 38px;
  border: 1px solid var(--text-strong);
  background: transparent;
  color: var(--text-strong);
  font-size: 13px;
  letter-spacing: 0.2em;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
  font-family: var(--sans);
}

.btn:hover {
  background: var(--text-strong);
  color: var(--bg);
  opacity: 1;
}

.btn--primary {
  background: var(--text-strong);
  color: var(--bg);
}

.btn--primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--white);
}

.btn--ghost {
  border-color: var(--white);
  color: var(--white);
}

.btn--ghost:hover {
  background: var(--white);
  color: var(--text-strong);
}

/* ---------- About / Image-with-text ---------- */
.feature-grid {
  display: grid;
  gap: 60px;
  margin-top: 40px;
}

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
}

.feature:nth-child(even) .feature__media {
  order: 2;
}

@media (max-width: 720px) {
  .feature {
    grid-template-columns: 1fr;
  }
  .feature:nth-child(even) .feature__media {
    order: 0;
  }
}

.feature__media {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #d6cfc6, #a89684);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.feature__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 35% 35%, rgba(255,255,255,0.2), transparent 60%);
}

.feature__title {
  font-family: var(--serif);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-strong);
  margin-bottom: 16px;
}

.feature__text {
  font-size: 14px;
  line-height: 2;
  color: var(--text);
  margin-bottom: 12px;
}

.feature__text--en {
  font-size: 13px;
  font-style: italic;
  color: var(--text-soft);
}

/* ---------- Flow steps ---------- */
.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 24px;
}

@media (max-width: 880px) {
  .flow {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .flow {
    grid-template-columns: 1fr;
  }
}

.flow__item {
  text-align: center;
  padding: 32px 20px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  transition: transform var(--transition), box-shadow var(--transition);
}

.flow__item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.06);
}

.flow__step {
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}

.flow__title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-strong);
  margin-bottom: 16px;
}

.flow__title--en {
  font-style: italic;
  color: var(--accent);
  font-size: 14px;
  display: block;
  margin-top: 4px;
}

.flow__text {
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-soft);
}

/* ---------- Price ---------- */
.price {
  max-width: 720px;
  margin: 0 auto;
}

.price__group {
  margin-bottom: 60px;
}

.price__group-title {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: 0.12em;
  font-weight: 400;
  color: var(--text-strong);
  text-align: center;
  margin-bottom: 8px;
}

.price__group-sub {
  text-align: center;
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 28px;
}

.price__list {
  list-style: none;
}

.price__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  letter-spacing: 0.08em;
}

.price__row:first-child {
  border-top: 1px solid var(--line);
}

.price__name {
  color: var(--text);
}

.price__amount {
  font-family: var(--serif);
  color: var(--text-strong);
  font-size: 18px;
  letter-spacing: 0.08em;
}

.price__note {
  text-align: center;
  font-size: 12px;
  color: var(--text-soft);
  margin-top: 16px;
}

/* ---------- Gallery ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 24px;
}

@media (max-width: 820px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}

.gallery__item {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.gallery__media {
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, #d6cfc6, #a89684);
  position: relative;
}

.gallery__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.15), transparent 60%);
}

.gallery__body {
  padding: 22px 22px 28px;
}

.gallery__title {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.1em;
  color: var(--text-strong);
  margin-bottom: 10px;
  font-weight: 400;
}

.gallery__text {
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-soft);
}

/* ---------- Stores / Access ---------- */
.stores {
  display: grid;
  gap: 60px;
}

.store {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
}

@media (max-width: 820px) {
  .store {
    grid-template-columns: 1fr;
  }
}

.store__map {
  aspect-ratio: 4 / 3;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.store__map iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.store__name {
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--text-strong);
  margin-bottom: 8px;
}

.store__name--en {
  display: block;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-style: italic;
  margin-bottom: 24px;
}

.store__address {
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 16px;
}

.store__zip {
  display: block;
  font-size: 12px;
  color: var(--text-soft);
  margin-bottom: 4px;
}

.store__access {
  list-style: none;
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 20px;
}

.store__access li {
  padding: 4px 0;
}

.store__access li::before {
  content: "・";
  margin-right: 4px;
}

.store__sns {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.1em;
  border: 1px solid var(--text-strong);
  padding: 10px 22px;
  border-radius: 999px;
}

.store__sns:hover {
  background: var(--text-strong);
  color: var(--bg);
}

.store__hours {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-soft);
  letter-spacing: 0.1em;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq__lang {
  text-align: center;
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 56px 0 24px;
  text-transform: uppercase;
}

.faq__item {
  border-bottom: 1px solid var(--line);
}

.faq__item:first-of-type {
  border-top: 1px solid var(--line);
}

.faq__question {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 22px 40px 22px 4px;
  cursor: pointer;
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--text-strong);
  position: relative;
}

.faq__question::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 200;
  color: var(--accent);
  transition: transform var(--transition);
}

.faq__item.is-open .faq__question::after {
  content: "−";
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
  font-size: 14px;
  line-height: 2;
  color: var(--text-soft);
}

.faq__answer-inner {
  padding: 0 4px 24px;
}

/* ---------- Contact form ---------- */
.contact-intro {
  text-align: center;
  font-size: 14px;
  line-height: 2;
  color: var(--text-soft);
  margin-bottom: 48px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.contact-form {
  max-width: 720px;
  margin: 0 auto;
  background: var(--white);
  padding: clamp(28px, 5vw, 56px);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.field {
  margin-bottom: 28px;
}

.field__label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--text-strong);
  margin-bottom: 10px;
  font-weight: 500;
}

.field__required {
  color: #c0392b;
  margin-left: 6px;
  font-size: 11px;
  font-weight: 400;
}

.field__input,
.field__select,
.field__textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text-strong);
  transition: border-color var(--transition), background var(--transition);
  font-family: var(--sans);
}

.field__input:focus,
.field__select:focus,
.field__textarea:focus {
  outline: none;
  border-color: var(--text-strong);
  background: var(--white);
}

.field__textarea {
  min-height: 160px;
  resize: vertical;
  line-height: 1.8;
}

.field__radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 480px) {
  .field__radio-group {
    grid-template-columns: 1fr;
  }
}

.field__radio {
  position: relative;
  cursor: pointer;
}

.field__radio input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.field__radio-card {
  display: block;
  padding: 18px 20px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-align: center;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--text);
  transition: all var(--transition);
}

.field__radio input:checked + .field__radio-card {
  background: var(--text-strong);
  color: var(--bg);
  border-color: var(--text-strong);
}

.field__radio-card small {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  margin-top: 4px;
  opacity: 0.7;
  font-style: italic;
}

.field__hint {
  font-size: 12px;
  color: var(--text-soft);
  margin-top: 6px;
}

.form-actions {
  text-align: center;
  margin-top: 36px;
}

.form-actions .btn {
  min-width: 240px;
}

.form-message {
  margin-top: 20px;
  padding: 14px;
  border-radius: var(--radius);
  font-size: 14px;
  text-align: center;
  display: none;
}

.form-message.is-error {
  display: block;
  background: #fff0ee;
  color: #c0392b;
  border: 1px solid #f3c8c1;
}

.form-message.is-success {
  display: block;
  background: #f0f6ee;
  color: #4a7d3a;
  border: 1px solid #c6e3bb;
}

/* ---------- Page hero (sub pages) ---------- */
.page-hero {
  padding: clamp(60px, 10vw, 120px) 0 clamp(40px, 6vw, 72px);
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.page-hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: 0.1em;
  color: var(--text-strong);
  margin-bottom: 12px;
}

.page-hero__sub {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--text-soft);
  text-transform: uppercase;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #2b2724;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
  margin-top: 80px;
  font-size: 13px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 820px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

.site-footer__brand {
  font-family: var(--serif);
  color: rgba(255,255,255,0.95);
  font-size: 22px;
  letter-spacing: 0.32em;
  margin-bottom: 12px;
}

.site-footer__tagline {
  font-size: 12px;
  line-height: 1.9;
  opacity: 0.7;
  letter-spacing: 0.05em;
}

.site-footer__heading {
  font-family: var(--serif);
  font-size: 14px;
  color: rgba(255,255,255,0.95);
  letter-spacing: 0.2em;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.site-footer ul {
  list-style: none;
}

.site-footer li {
  margin-bottom: 8px;
}

.site-footer a {
  color: rgba(255,255,255,0.7);
}

.site-footer a:hover {
  color: rgba(255,255,255,1);
}

.site-footer__bottom {
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.16em;
  opacity: 0.6;
  text-transform: uppercase;
}