/* ============================================================
   土佐屋 — Design System & Stylesheet
   備長炭炭工房「土佐屋」
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=Noto+Sans+JP:wght@300;400;500&family=Noto+Serif+JP:wght@300;400;500;600;700&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --c-black: #1a1a1a;
  --c-dark: #232323;
  --c-charcoal: #333333;
  --c-gray: #9a9590;
  --c-gray-light: #c8c3bd;
  --c-cream: #f5f3f0;
  --c-offwhite: #faf9f7;
  --c-white: #ffffff;
  --c-gold: #b8a88a;
  --c-gold-light: #d4c9b3;

  /* Typography */
  --ff-serif-jp: 'Noto Serif JP', 'Yu Mincho', '游明朝', serif;
  --ff-sans-jp: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  --ff-serif-en: 'Cormorant Garamond', 'Georgia', serif;

  /* Spacing */
  --space-xs: 0.5rem;
  /* 8px */
  --space-sm: 1rem;
  /* 16px */
  --space-md: 2rem;
  /* 32px */
  --space-lg: 4rem;
  /* 64px */
  --space-xl: 6rem;
  /* 96px */
  --space-2xl: 10rem;
  /* 160px */

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 960px;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-base: 0.4s var(--ease-out-expo);
  --transition-slow: 0.8s var(--ease-out-expo);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--ff-sans-jp);
  font-weight: 300;
  color: var(--c-charcoal);
  background-color: var(--c-offwhite);
  line-height: 2.0;
  letter-spacing: 0.08em;
  overflow-x: hidden;
}

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

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

a:hover {
  opacity: 0.7;
}

ul,
ol {
  list-style: none;
}

/* ---------- Utility ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section-label {
  font-family: var(--ff-serif-en);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--space-md);
}

.section-heading {
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.8;
  letter-spacing: 0.15em;
  color: var(--c-black);
}

.section-heading--light {
  color: var(--c-cream);
}

.body-text {
  font-family: var(--ff-sans-jp);
  font-weight: 300;
  font-size: 0.875rem;
  line-height: 2.4;
  letter-spacing: 0.08em;
  color: var(--c-charcoal);
}

.body-text--light {
  color: var(--c-gray-light);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--ff-sans-jp);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  padding: 1rem 2.5rem;
  border: 1px solid var(--c-charcoal);
  background: transparent;
  color: var(--c-charcoal);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  height: 0;
  width: 0;
  display: inline-block;
  border: 8px solid transparent;
  border-left-color: #333;
  position: absolute;
  right: 10px;
  top: 50%;
  margin-top: -8px;
}

.btn:hover {
  background: var(--c-black);
  color: var(--c-white);
  border-color: var(--c-black);
  opacity: 1;
}

.btn:hover::after {
  transform: translateX(4px);
  border-left-color: #fff;
}

.btn--back::after {
  content: '';
  height: 0;
  width: 0;
  display: inline-block;
  border: 8px solid transparent;
  border-right-color: #333;
  border-left-color: transparent;
  position: absolute;
  left: 10px;
  right: auto;
  top: 50%;
  margin-top: -8px;
}

.btn--back:hover::after {
  transform: translateX(4px);
  border-right-color: #fff;
  border-left-color: transparent;
}

.btn--light {
  border-color: var(--c-gray-light);
  color: var(--c-cream);
}

.btn--light:hover {
  background: var(--c-cream);
  color: var(--c-black);
  border-color: var(--c-cream);
}

/* ---------- Scroll Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s var(--ease-out-expo), transform 1s var(--ease-out-expo);
}

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

.reveal--delay-1 {
  transition-delay: 0.15s;
}

.reveal--delay-2 {
  transition-delay: 0.3s;
}

.reveal--delay-3 {
  transition-delay: 0.45s;
}

.reveal--delay-4 {
  transition-delay: 0.6s;
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-base), padding var(--transition-base);
}

.header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1rem 2.5rem;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.header__logo {
  height: 32px;
  width: auto;
  transition: filter var(--transition-base);
}

.header:not(.is-scrolled) .header__logo {
  filter: brightness(0) invert(1);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.header__nav a {
  font-family: var(--ff-sans-jp);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--c-charcoal);
  position: relative;
  transition: color var(--transition-base);
}

.header:not(.is-scrolled) .header__nav a {
  color: var(--c-white);
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width var(--transition-base);
}

.header__nav a:hover {
  opacity: 1;
}

.header__nav a:hover::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1010;
}

.hamburger__line {
  display: block;
  width: 28px;
  height: 1px;
  background: var(--c-charcoal);
  transition: all var(--transition-base);
}

.header:not(.is-scrolled) .hamburger__line {
  background: var(--c-white);
}

.hamburger.is-active .hamburger__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active .hamburger__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(26, 26, 26, 0.97);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  z-index: 990;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.mobile-nav.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav a {
  font-family: var(--ff-serif-jp);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--c-cream);
  transform: translateY(20px);
  opacity: 0;
  transition: all var(--transition-slow);
}

.mobile-nav.is-open a {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav.is-open a:nth-child(1) {
  transition-delay: 0.1s;
}

.mobile-nav.is-open a:nth-child(2) {
  transition-delay: 0.15s;
}

.mobile-nav.is-open a:nth-child(3) {
  transition-delay: 0.2s;
}

.mobile-nav.is-open a:nth-child(4) {
  transition-delay: 0.25s;
}

.mobile-nav.is-open a:nth-child(5) {
  transition-delay: 0.3s;
}

.mobile-nav.is-open a:nth-child(6) {
  transition-delay: 0.35s;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--c-black);
}

.hero__video-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.65;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom,
      rgba(0, 0, 0, 0.25) 0%,
      rgba(0, 0, 0, 0.15) 50%,
      rgba(0, 0, 0, 0.45) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--c-white);
}

.hero__catch {
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.5rem, 4vw, 2.8rem);
  letter-spacing: 0.25em;
  line-height: 2.2;
  color: var(--c-white);
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
}

.hero__catch-sub {
  font-family: var(--ff-serif-en);
  font-weight: 300;
  font-size: clamp(0.75rem, 1.5vw, 1rem);
  letter-spacing: 0.4em;
  margin-top: var(--space-md);
  color: var(--c-gray-light);
  text-transform: uppercase;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--c-gray-light);
}

.hero__scroll-text {
  font-family: var(--ff-serif-en);
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--c-gray-light), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% {
    transform: scaleY(0);
    transform-origin: top;
  }

  50% {
    transform: scaleY(1);
    transform-origin: top;
  }

  51% {
    transform: scaleY(1);
    transform-origin: bottom;
  }

  100% {
    transform: scaleY(0);
    transform-origin: bottom;
  }
}

/* ============================================================
   CONCEPT
   ============================================================ */
.concept {
  padding: var(--space-2xl) 0;
  background-color: var(--c-offwhite);

}

.concept__intro {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  padding: 0 var(--space-md);
}

.concept__subtitle {
  font-family: var(--ff-sans-jp);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--c-gold);
  margin-bottom: var(--space-sm);
}

.concept__title {
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.8vw, 2rem);
  line-height: 2;
  letter-spacing: 0.18em;
  color: var(--c-black);
  margin-bottom: var(--space-lg);
}

.concept__desc {
  font-size: 0.875rem;
  line-height: 2.6;
  color: var(--c-charcoal);
  letter-spacing: 0.06em;
}

/* SUMI visual block */
.concept__sumi {
  width: 100%;
  padding: 60px 0;
  margin: 100px auto;
}

.concept__sumi .inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-md);
}

.concept__sumi-visual {
  display: flex;
  align-items: flex-end;
  gap: var(--space-md);
}

.concept__sumi-kanji {
  font-family: var(--ff-serif-jp);
  font-weight: 700;
  font-size: clamp(6rem, 14vw, 12rem);
  line-height: 1;
  color: var(--c-white);
  user-select: none;
}

.concept__sumi-en {
  font-family: var(--ff-serif-en);
  font-weight: 300;
  font-size: clamp(2rem, 5vw, 4.5rem);
  letter-spacing: 0.15em;
  color: var(--c-white);
  text-transform: uppercase;
  line-height: 1;
  padding-bottom: 0.5rem;
}

.concept__sumi-text {
  font-size: 0.875rem;
  line-height: 2.4;
  color: var(--c-white);
  letter-spacing: 0.06em;
}

.concept__sumi-text p+p {
  margin-top: var(--space-sm);
}

.concept__sumi {
  background-image: url('../img/s009.webp');
  background-position: center;
  background-repeat: no-repeat;
  background-size: 100%;
  background-attachment: fixed;
  position: relative;
}

.concept__sumi__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.8) 100%);
}

/* ============================================================
   NEWS
   ============================================================ */
.news {
  padding: var(--space-2xl) 0;
  background: var(--c-cream);
}

.news__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.news__label {
  font-family: var(--ff-serif-en);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--space-md);
}

.news__title {
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  line-height: 1.9;
  letter-spacing: 0.12em;
  color: var(--c-black);
  margin-bottom: var(--space-md);
}

.news__text {
  font-size: 0.8125rem;
  line-height: 2.4;
  color: var(--c-charcoal);
  margin-bottom: var(--space-lg);
}

.news__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--c-gray-light);
  overflow: hidden;
}

.news__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.news__image:hover img {
  transform: scale(1.03);
}

/* ============================================================
   WORKS
   ============================================================ */
.swiper {
  overflow: hidden;
}

.works {
  padding: var(--space-2xl) 0;
  background: var(--c-offwhite);
}

.works__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.works__label {
  font-family: var(--ff-serif-en);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--space-sm);
}

.works__title {
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  letter-spacing: 0.18em;
  color: var(--c-black);
}

.works__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.works__item {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--c-gray-light);
  cursor: pointer;
}

.works__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.works__item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  color: var(--c-white);
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-base);
}

.works__item:hover img {
  transform: scale(1.08);
}

.works__item:hover .works__item-overlay {
  opacity: 1;
  transform: translateY(0);
}

.works__item-name {
  font-family: var(--ff-serif-jp);
  font-size: 0.875rem;
  letter-spacing: 0.1em;
}

.works__dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: var(--space-lg);
}

.works__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-gray-light);
  border: none;
  cursor: pointer;
  transition: background var(--transition-base);
}

.works__dot.is-active {
  background: var(--c-charcoal);
}

.works__footer {
  text-align: center;
  margin-top: var(--space-lg);
}

/* ============================================================
   SHOP
   ============================================================ */
.shop {
  padding: var(--space-2xl) 0;
  background: var(--c-offwhite);
}

.shop__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.shop__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--c-gray-light);
  overflow: hidden;
}

.shop__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.shop__label {
  font-family: var(--ff-serif-en);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--space-md);
}

.shop__title {
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  letter-spacing: 0.15em;
  line-height: 1.9;
  color: var(--c-black);
  margin-bottom: var(--space-md);
}

.shop__text {
  font-size: 0.8125rem;
  line-height: 2.4;
  color: var(--c-charcoal);
  margin-bottom: var(--space-lg);
}

.shop__info {
  font-size: 0.8125rem;
  line-height: 2.4;
  color: var(--c-charcoal);
  margin-bottom: var(--space-lg);
}

.shop__info dt {
  font-weight: 500;
  display: inline;
}

.shop__info dd {
  display: inline;
  margin-left: 0.5rem;
}

.shop__info dd::after {
  content: '';
  display: block;
}

/* Google Map */
.shop__map {
  max-width: 1100px;
  margin: var(--space-xl) auto 0;
  padding: 0 var(--space-md);
  margin-bottom: 100px;
}

.shop__map iframe {
  width: 100%;
  height: 400px;
  border: none;
  filter: grayscale(0.8) contrast(1.1);
  transition: filter var(--transition-base);
}

.shop__map iframe:hover {
  filter: grayscale(0) contrast(1);
}

/* Shop Page Specific */
.shop-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: 1100px;
  margin: var(--space-2xl) auto;
  padding: 0 var(--space-md);
}

.shop-gallery__item {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--c-gray-light);
  overflow: hidden;
}

.shop-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.shop-gallery__item:hover img {
  transform: scale(1.05);
}

#shop_foods {
  margin-top: 100px;
}

.shop-details {
  max-width: 1040px;
  margin: var(--space-2xl) auto 0;
  padding: var(--space-lg) var(--space-md);
  background: var(--c-white);
  border: 1px solid var(--c-gray-light);
}

.shop-details__list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.shop-details__row {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px dotted var(--c-gray-light);
  padding-bottom: 1.5rem;
}

.shop-details__row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.shop-details__term {
  width: 150px;
  font-family: var(--ff-serif-jp);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--c-black);
  flex-shrink: 0;
}

.shop-details__desc {
  flex: 1;
  font-size: 0.875rem;
  color: var(--c-charcoal);
  line-height: 1.8;
  min-width: 200px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--c-black);
  color: var(--c-gray);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer__logo {
  height: 28px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.8;
  margin-bottom: var(--space-lg);
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-bottom: var(--space-lg);
}

.footer__nav a {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--c-gray);
  transition: color var(--transition-base);
}

.footer__nav a:hover {
  color: var(--c-cream);
  opacity: 1;
}

.footer__divider {
  width: 40px;
  height: 1px;
  background: var(--c-charcoal);
  margin-bottom: var(--space-md);
}

.footer__copy {
  font-family: var(--ff-serif-en);
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  color: var(--c-gray);
  opacity: 0.6;
}

/* ============================================================
   SUBPAGE HERO
   ============================================================ */
.page-hero {
  position: relative;
  width: 100%;
  height: 40vh;
  min-height: 300px;
  max-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-black);
  overflow: hidden;
  margin-bottom: var(--space-2xl);
}

.page-hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.6) 100%);
}

.page-hero__title {
  position: relative;
  z-index: 2;
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  letter-spacing: 0.2em;
  color: var(--c-white);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
  text-align: center;
}

/* ============================================================
   PRODUCTS
   ============================================================ */
.products {
  padding-bottom: var(--space-2xl);
}

.products__inner {
  display: block;
  max-width: 1100px;
  margin: 0 auto 60px;
  padding: 0 var(--space-md);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}



.product-item {
  padding-bottom: var(--space-sm);
  transition: transform var(--transition-base);

}

.product-item:hover {
  transform: translateY(-5px);
}

.product-item__image {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--c-gray-light);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.product-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out-expo);
}

.product-item:hover .product-item__image img {
  transform: scale(1.05);
}

.product-item__info {
  padding: 0 1rem;
  text-align: center;
}

.product-item__name {
  font-family: var(--ff-serif-jp);
  font-size: 1rem;
  color: var(--c-black);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.product-item__price {
  font-family: var(--ff-sans-jp);
  font-size: 0.875rem;
  color: var(--c-gray);
  letter-spacing: 0.1em;
}

/* ============================================================
   NEWS PAGE
   ============================================================ */
.news-page {
  padding-bottom: var(--space-2xl);
}

.news-list {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.news-item {
  border-bottom: 1px solid var(--c-gray-light);
}

.news-item:first-child {
  border-top: 1px solid var(--c-gray-light);
}

.news-item__link {
  display: flex;
  align-items: flex-start;
  padding: 2rem 1rem;
  gap: 2rem;
  transition: background-color var(--transition-base);
}

.news-item__link:hover {
  background-color: var(--c-cream);
  opacity: 1;
  /* Override default a:hover */
}

.news-item__date {
  font-family: var(--ff-serif-en);
  font-size: 1rem;
  color: var(--c-gold);
  letter-spacing: 0.1em;
  width: 100px;
  flex-shrink: 0;
  padding-top: 0.15rem;
}

.news-item__title {
  font-family: var(--ff-sans-jp);
  font-size: 1rem;
  color: var(--c-black);
  line-height: 1.6;
  letter-spacing: 0.1em;
  font-weight: 400;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  padding-bottom: var(--space-2xl);
}

.contact__inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Contact Info (Phone) */
.contact__info {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  background: var(--c-white);
  margin-bottom: var(--space-xl);
  border: 1px solid var(--c-gray-light);
}

.contact__info-title {
  font-family: var(--ff-serif-jp);
  font-size: 1.25rem;
  color: var(--c-black);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.contact__info-text {
  font-size: 0.875rem;
  color: var(--c-charcoal);
  margin-bottom: var(--space-md);
}

.contact__tel {
  display: inline-block;
  font-family: var(--ff-serif-en);
  font-size: clamp(2rem, 4vw, 2.5rem);
  color: var(--c-black);
  letter-spacing: 0.1em;
  line-height: 1;
}

.box_anti {
  display: none;
}

form .msg {
  text-align: center;
}

#btn_submit {
  max-width: 320px;
  margin: 30px auto;
  text-align: center;
}

table.confirm {
  margin-top: 20px;
}

/* Contact Form */
.contact__form-title {
  font-family: var(--ff-serif-jp);
  font-size: 1.5rem;
  text-align: center;
  color: var(--c-black);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.contact__form {
  background: var(--c-white);
  padding: var(--space-lg);
  border: 1px solid var(--c-gray-light);
}

.form-group {
  margin-bottom: 2rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-black);
  margin-bottom: 0.5rem;
  letter-spacing: 0.1em;
}

.form-label .required {
  color: #cc0000;
  font-size: 0.75rem;
  margin-left: 0.5rem;
  font-weight: normal;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 1rem;
  font-family: var(--ff-sans-jp);
  font-size: 1rem;
  color: var(--c-charcoal);
  background: var(--c-offwhite);
  border: 1px solid var(--c-gray-light);
  border-radius: 0;
  transition: all var(--transition-base);
}

.form-textarea {
  min-height: 200px;
  resize: vertical;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--c-gold);
  background: var(--c-white);
  box-shadow: 0 0 0 1px var(--c-gold);
}

.form-submit {
  text-align: center;
  margin-top: var(--space-xl);
}

.form-submit .btn {
  min-width: 200px;
  justify-content: center;
  background: var(--c-black);
  color: var(--c-white);
}

.form-submit .btn:hover {
  background: var(--c-charcoal);
  border-color: var(--c-charcoal);
}

/* ============================================================
   CHARM (The Appeal of Binchotan)
   ============================================================ */
.charm-page {
  padding-bottom: var(--space-2xl);
}

.charm-intro {
  max-width: 800px;
  margin: var(--space-xl) auto var(--space-2xl);
  padding: 0 var(--space-md);
  text-align: center;
}

.charm-intro__title {
  font-family: var(--ff-serif-jp);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: 0.15em;
  color: var(--c-black);
  margin-bottom: var(--space-lg);
}

.charm-intro__text {
  font-size: 0.9375rem;
  line-height: 2.4;
  color: var(--c-charcoal);
  text-align: left;
}

.charm-section {
  padding: var(--space-xl) 0;
}

.charm-section:nth-child(even) {
  background: var(--c-white);
}

.charm-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.charm-split__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--c-gray-light);
  overflow: hidden;
}

.charm-split__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.charm-split__content h2 {
  font-family: var(--ff-serif-jp);
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  letter-spacing: 0.15em;
  color: var(--c-black);
  margin-bottom: var(--space-md);
}

.charm-split__content p {
  font-size: 0.875rem;
  line-height: 2.2;
  color: var(--c-charcoal);
}

.charm-features {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

.charm-features__header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.charm-features__header h2 {
  font-family: var(--ff-serif-jp);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: 0.15em;
  color: var(--c-black);
  margin-bottom: var(--space-md);
}

.charm-features__header p {
  font-size: 0.875rem;
  color: var(--c-charcoal);
}

.charm-features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.charm-feature {
  background: var(--c-offwhite);
  padding: var(--space-lg);
  border: 1px solid var(--c-gray-light);
}

.charm-feature__title {
  font-family: var(--ff-serif-jp);
  font-size: 1.125rem;
  color: var(--c-gold);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.charm-feature__title::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--c-gold);
}

.charm-feature__text {
  font-size: 0.875rem;
  line-height: 2;
  color: var(--c-charcoal);
}

/* ============================================================
   NEWS DETAIL
   ============================================================ */
.news-detail {
  padding: var(--space-2xl) 0;
  background: var(--c-offwhite);
}

.news-detail__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.news-detail__top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  align-items: start;
}

.news-detail__image {
  width: 100%;
  background: var(--c-gray-light);
}

.news-detail__image img {
  width: 100%;
  height: auto;
  display: block;
}

.news-detail__title {
  font-family: var(--ff-serif-jp);
  font-weight: 400;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  line-height: 1.6;
  letter-spacing: 0.12em;
  color: var(--c-black);
  margin-bottom: var(--space-lg);
}

.news-detail__text {
  font-size: 0.875rem;
  line-height: 2.4;
  color: var(--c-charcoal);
  margin-bottom: var(--space-md);
}

.news-detail__gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.news-detail__gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--c-gray-light);
}

.news-detail__footer {
  text-align: center;
}

/* ============================================================
   RESPONSIVE — Tablet (max-width: 960px)
   ============================================================ */
@media (max-width: 960px) {
  .header__nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .concept__sumi .inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .concept__sumi-visual {
    justify-content: center;
  }

  .news__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .news__image {
    order: -1;
  }

  .works__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .shop__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .charm-split {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .products__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .news-detail__top {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .news-detail__gallery {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   RESPONSIVE — Mobile (max-width: 600px)
   ============================================================ */
@media (max-width: 600px) {
  :root {
    --space-xl: 4rem;
    --space-2xl: 6rem;
  }

  .header {
    padding: 1rem 1.25rem;
  }

  .header.is-scrolled {
    padding: 0.75rem 1.25rem;
  }

  .header__logo {
    height: 24px;
  }

  .hero__catch {
    letter-spacing: 0.15em;
  }

  .concept__intro {
    padding: 0 1.25rem;
  }

  .concept__sumi {
    padding: 60px 1.25rem;
  }

  .news__content,
  .shop__inner {
    text-align: center;
  }

  .shop__inner p,
  .shop__inner h2,
  .shop__inner dl,
  .concept__desc,
  .news__content h2,
  .news__content p {
    text-align: left;
  }

  .concept__sumi {

    background-size: 200%;

  }

  .news__content .btn {
    margin-right: auto;
    margin-left: auto;
  }


  .concept__sumi-kanji {
    font-size: 5rem;
  }

  .concept__sumi-en {
    font-size: 2rem;
  }

  .works__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    padding: 0 1.25rem;
  }

  .news-item__link {
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
  }

  .shop__inner {
    padding: 0 1.25rem;
  }

  .shop__map {
    padding: 0 1.25rem;
  }

  .shop__map iframe {
    height: 280px;
  }

  .contact__info,
  .contact__form {
    padding: var(--space-md) var(--space-sm);
  }



  .products__grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .shop-gallery {
    grid-template-columns: 1fr;
    padding: 0 1.25rem;
  }

  .shop-details {
    padding: var(--space-md) var(--space-sm);
  }

  .shop-details__term {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .charm-features__grid {
    grid-template-columns: 1fr;
  }

  .footer__nav {
    flex-direction: column;
    gap: 1.25rem;
  }

  .shop-details {
    margin: var(--space-2xl) 15px 0;

  }

  .confirm tr,
  .confirm th,
  .confirm td {
    display: block;
    width: 100%;
    box-sizing: border-box;
  }

  .confirm th {
    text-align: left;
  }

  .btn-undo {
    margin-top: 25px;
  }

}