/* ============================================================
   FINS — 和ミニマル
   ============================================================ */

:root {
  --bg:         #f5f0e6;   /* 生成り（和紙） */
  --bg-pure:    #fbf8f2;   /* より淡い生成り */
  --bg-deep:    #ebe3d1;   /* 濃いめ生成り（影） */
  --text:       #1f1a17;   /* 墨 */
  --text-mid:   #4a423b;   /* 薄墨 */
  --text-soft:  #7a6f64;   /* さらに薄い */
  --accent:     #b03a2e;   /* 朱（金魚の色） */
  --accent-deep:#7a2418;   /* 深朱 */
  --gold:       #c9a96a;   /* 金箔 */
  --line:       #d9d0c2;   /* 薄い界線 */
  --line-faint: #ebe3d1;   /* さらに薄い界線 */
}

* { box-sizing: border-box; margin: 0; padding: 0; }
*, *::before, *::after { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans JP", "Yu Gothic", sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  word-break: keep-all;
  overflow-wrap: anywhere;
  -webkit-text-size-adjust: 100%;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* ============ Splash ============ */
.splash {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 1.1s ease, visibility 0s linear 1.1s;
}
.splash-img {
  width: clamp(220px, 36vw, 440px);
  aspect-ratio: 1 / 1;
  background: url('../images/splash-fish.png') center / contain no-repeat;
  opacity: 0;
  transform: translateY(10px) scale(0.96);
  animation: splashIn 1.2s cubic-bezier(.16,1,.3,1) 0.2s forwards;
}
@keyframes splashIn {
  to { opacity: 1; transform: translateY(0) scale(1); }
}
body.is-loaded .splash {
  opacity: 0; visibility: hidden; pointer-events: none;
}

/* ============ Header ============ */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 28px 0;
  transition: background 0.4s ease, padding 0.4s ease, box-shadow 0.4s ease;
}
header.is-scrolled {
  background: rgba(245, 240, 230, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 18px 0;
  box-shadow: 0 1px 0 var(--line-faint);
}
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  color: var(--text);
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.logo-kabu {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--text-mid);
  transform: translateY(-2px);
}
.logo-name {
  font-size: 22px;
  letter-spacing: 0.32em;
}
.nowrap { white-space: nowrap; }
.nav {
  display: flex;
  gap: 44px;
  align-items: center;
}
.nav a {
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--text-mid);
  position: relative;
  transition: color 0.3s ease;
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.4s cubic-bezier(.16,1,.3,1);
}
.nav a:hover { color: var(--text); }
.nav a:hover::after { width: 100%; }
.nav-cta {
  padding: 10px 22px;
  border: 1px solid var(--text);
  letter-spacing: 0.16em;
}
.nav-cta::after { display: none; }
.nav-cta:hover {
  background: var(--text);
  color: var(--bg);
}
.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  width: 36px; height: 36px;
  flex-direction: column; justify-content: center; gap: 6px;
}
.nav-toggle span {
  display: block; width: 24px; height: 1px; background: var(--text);
}

/* ============ Hero ============ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url('../images/hero-bg.jpg') center / cover no-repeat;
  background-color: #0d0604;
  transform: scale(1.04);
  opacity: 0;
  transition: opacity 1.6s ease, transform 2.4s cubic-bezier(.2,.7,.2,1);
}
body.is-loaded .hero-bg { opacity: 1; transform: scale(1); }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 35%, rgba(0,0,0,0.55) 100%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 56px;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: 110px;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1.2s ease 0.7s, transform 1.4s cubic-bezier(.16,1,.3,1) 0.7s;
}
body.is-loaded .hero-inner { opacity: 1; transform: translateY(0); }

.hero-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 900;
  font-size: clamp(56px, 10vw, 144px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: var(--bg-pure);
  margin-bottom: 36px;
}
.hero-rule {
  width: 80px; height: 1px;
  background: var(--accent);
  margin-bottom: 22px;
}
.hero-sub {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: clamp(15px, 1.4vw, 18px);
  color: rgba(251, 248, 242, 0.7);
  letter-spacing: 0.04em;
  margin-bottom: 48px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.scroll-indicator {
  position: absolute;
  left: 50%; bottom: 32px;
  transform: translateX(-50%);
  z-index: 3;
}
.scroll-indicator span {
  display: block;
  width: 1px; height: 56px;
  background: linear-gradient(180deg, transparent, rgba(251,248,242,0.6));
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; transform-origin: bottom; }
  50%      { transform: scaleY(1); opacity: 1; transform-origin: top; }
}

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  padding: 17px 38px;
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.18em;
  color: var(--bg-pure);
  border: 1px solid var(--bg-pure);
  background: transparent;
  transition: all 0.4s cubic-bezier(.16,1,.3,1);
  cursor: pointer;
}
.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-pure);
}
.btn-ghost {
  color: var(--bg-pure);
  border-color: rgba(251,248,242,0.5);
}

/* セクション内ボタン（明背景用） */
.section .btn {
  color: var(--text);
  border-color: var(--text);
}
.section .btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-pure);
}

/* ============ Common Section ============ */
.section {
  padding: 160px 0;
  position: relative;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 56px;
}
.container.narrow {
  max-width: 820px;
}
.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 64px;
  font-family: "Cormorant Garamond", serif;
}
.section-eyebrow .num {
  font-size: 22px;
  font-style: italic;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.section-eyebrow .line {
  flex: 0 0 64px;
  height: 1px;
  background: var(--line);
}
.section-eyebrow .label {
  font-family: "Noto Serif JP", serif;
  font-style: normal;
  font-size: 14px;
  letter-spacing: 0.32em;
  color: var(--text-mid);
}

.section-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 800;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.4;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 72px;
}

.block-heading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.4em;
  color: var(--text);
  margin: 96px 0 56px;
}
.block-rule {
  flex: 0 0 80px;
  height: 1px;
  background: var(--line);
}

/* ============ Reveal ============ */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1.2s ease, transform 1.2s cubic-bezier(.16,1,.3,1); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============ About ============ */
.about { background: var(--bg); }
.lead-quote {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 2.2;
  letter-spacing: 0.06em;
  color: var(--text);
  text-align: left;
}

/* ============ Businesses ============ */
.businesses { background: var(--bg); padding-bottom: 120px; }
.biz-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
}
.biz-card {
  display: block;
  transition: transform 0.5s cubic-bezier(.16,1,.3,1);
}
.biz-card:hover { transform: translateY(-6px); }
.biz-img {
  aspect-ratio: 4 / 5;
  background-color: var(--bg-deep);
  background-size: cover;
  background-position: center;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
}
.biz-img::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.15));
}
.biz-img-shop {
  background-image: url('../images/biz-shop.jpg');
  background-color: #2a0c08;
}
.biz-img-sub {
  background-image: url('../images/biz-sub.jpg');
  background-color: #1a2228;
}
.biz-name {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 32px;
  letter-spacing: 0.16em;
  margin-bottom: 14px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.biz-name-ruby {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--accent);
  white-space: nowrap;
}
.biz-rule {
  width: 40px; height: 1px; background: var(--accent);
  margin-bottom: 22px;
}
.biz-copy {
  font-family: "Noto Serif JP", serif;
  font-size: 20px;
  line-height: 1.8;
  color: var(--text-mid);
  margin-bottom: 28px;
}
.biz-link {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--accent);
  transition: letter-spacing 0.4s ease;
}
.biz-card:hover .biz-link { letter-spacing: 0.32em; }

/* ============ Shop ============ */
.shop { background: var(--bg-pure); }
.shop-intro {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: 72px;
  align-items: center;
  margin-bottom: 40px;
}
.shop-intro-img {
  aspect-ratio: 4 / 5;
  background: url('../images/shop-intro.jpg') center / cover no-repeat;
  background-color: #1a120e;
}
.shop-intro-text p {
  font-size: 16px;
  line-height: 2.1;
  color: var(--text-mid);
  margin-bottom: 20px;
}
.shop-intro-text p:last-child { margin-bottom: 0; }

.origins {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
  margin-bottom: 36px;
}
.origin-name {
  font-family: "Noto Serif JP", serif;
  font-weight: 800;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.2;
  letter-spacing: 0.08em;
  color: var(--text);
}
.origin-area {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-top: 8px;
}
.origins-note {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  color: var(--text-mid);
  line-height: 2;
}

.varieties {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.variety {
  text-align: center;
}
.variety-img {
  aspect-ratio: 1 / 1;
  background-color: var(--bg-deep);
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
  transition: transform 0.6s cubic-bezier(.16,1,.3,1);
}
.variety:hover .variety-img { transform: scale(1.03); }
.variety-1 { background-image: url('../images/variety-ranchu.jpg'); background-color: #2a0c08; background-size: cover; background-position: center; }
.variety-2 { background-image: url('../images/variety-oranda.jpg'); background-color: #3a2208; background-size: cover; background-position: center; }
.variety-3 { background-image: url('../images/variety-shubunkin.jpg'); background-color: #1a0e14; background-size: cover; background-position: center; }
.variety-4 { background-image: url('../images/variety-pingpong.jpg'); background-color: #4a2e1a; background-size: cover; background-position: center; }
.variety-name {
  font-family: "Noto Serif JP", serif;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.16em;
  color: var(--text);
}
.varieties-note {
  margin-top: 56px;
  text-align: center;
  font-family: "Noto Serif JP", serif;
  font-weight: 400;
  font-size: 15px;
  line-height: 2.1;
  color: var(--text-mid);
  letter-spacing: 0.08em;
}

/* ============ Subscription ============ */
.subscription { background: var(--bg); }
.service-name {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-top: -48px;
  margin-bottom: 48px;
}
.service-name-ja {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.22em;
  color: var(--accent);
}
.service-name-ruby {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 15px;
  color: var(--text-soft);
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.sub-lead {
  font-size: 17px;
  line-height: 2.1;
  color: var(--text-mid);
  max-width: 720px;
  margin-bottom: 64px;
}
.sub-hero-img {
  aspect-ratio: 16 / 9;
  background: url('../images/sub-hero.jpg') center / cover no-repeat;
  background-color: #1a2228;
  margin-bottom: 40px;
}

.scenes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.scene {
  padding: 36px 28px;
  background: var(--bg);
  transition: background 0.4s ease;
}
.scene:hover { background: var(--bg-pure); }
.scene-name {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
  color: var(--text);
}
.scene-desc {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.8;
}

.plans {
  margin-bottom: 32px;
}
.plan {
  display: grid;
  grid-template-columns: 2fr 1.2fr auto 1.4fr;
  align-items: baseline;
  gap: 20px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.plan:first-child { border-top: 1px solid var(--line); }
.plan-name {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.1em;
  color: var(--text);
}
.plan-spec {
  font-size: 14px;
  color: var(--text-soft);
  letter-spacing: 0.08em;
}
.plan-dots {
  border-top: 1px dotted var(--line);
  width: 100%;
  min-width: 40px;
  transform: translateY(-4px);
}
.plan-price {
  text-align: right;
  font-family: "Noto Serif JP", serif;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--text);
}
.plan-price strong {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
}

.plan-notes {
  list-style: none;
  padding: 0;
  margin-bottom: 56px;
}
.plan-notes li {
  font-size: 14px;
  color: var(--text-soft);
  padding: 6px 0;
  padding-left: 22px;
  position: relative;
  line-height: 1.9;
}
.plan-notes li::before {
  content: '─';
  position: absolute;
  left: 0; top: 6px;
  color: var(--accent);
}

.sub-cta { text-align: center; margin-top: 40px; }

/* ============ Promises ============ */
.promises { background: var(--bg-pure); }
.promise {
  margin-bottom: 56px;
}
.promise:last-child { margin-bottom: 0; }
.promise-name {
  font-family: "Noto Serif JP", serif;
  font-weight: 800;
  font-size: 26px;
  letter-spacing: 0.16em;
  color: var(--text);
  margin-bottom: 18px;
}
.promise-text {
  font-size: 16px;
  line-height: 2.1;
  color: var(--text-mid);
  margin-bottom: 32px;
  text-wrap: pretty;
}
.promise-rule {
  width: 100%; height: 1px;
  background: var(--line);
}

/* ============ Message ============ */
.message { background: var(--bg); }
.message-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 80px;
  align-items: center;
}
.message-photo {
  aspect-ratio: 4 / 5;
  background: url('../images/founder.png') center / cover no-repeat;
  background-color: #6b4a2a;
}
.message-quote {
  font-family: "Noto Serif JP", serif;
  font-weight: 400;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 2.05;
  letter-spacing: 0.04em;
  color: var(--text-mid);
  margin-bottom: 48px;
  text-wrap: pretty;
}
.future-text {
  text-wrap: pretty;
}
.lead-quote {
  text-wrap: pretty;
}
.message-sign {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.message-name {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.18em;
  color: var(--text);
  margin-bottom: 6px;
}
.message-title {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--text-soft);
}

/* ============ Future ============ */
.future { background: var(--bg-pure); text-align: center; }
.future-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 800;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--text);
  margin-bottom: 56px;
}
.future-text {
  font-size: 16px;
  line-height: 2.1;
  color: var(--text-mid);
  text-align: left;
  max-width: 640px;
  margin: 0 auto;
}

/* ============ Company ============ */
.company { background: var(--bg); }
.info {
  display: grid;
  grid-template-columns: 200px 1fr;
}
.info dt {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.18em;
  color: var(--text);
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.info dd {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-mid);
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

/* ============ Contact ============ */
.contact { background: var(--bg-pure); text-align: center; }
.contact-title {
  font-family: "Noto Serif JP", serif;
  font-weight: 800;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.5;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}
.contact-text {
  font-size: 16px;
  color: var(--text-mid);
  margin-bottom: 56px;
}
.contact-info {
  display: flex;
  justify-content: center;
  gap: 64px;
  flex-wrap: wrap;
}
.contact-info > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.contact-label {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.08em;
}
.contact-value {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.08em;
  color: var(--text);
}

/* ============ Footer ============ */
footer {
  background: var(--text);
  color: var(--bg);
  padding: 80px 0 32px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  margin-bottom: 56px;
}
.footer-logo {
  font-family: "Noto Serif JP", serif;
  font-weight: 700;
  color: var(--bg-pure);
  margin-bottom: 12px;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}
.footer-kabu {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: rgba(245,240,230,0.55);
  transform: translateY(-3px);
}
.footer-name {
  font-size: 28px;
  letter-spacing: 0.32em;
}
.footer-tag {
  font-size: 13px;
  color: rgba(245,240,230,0.55);
  letter-spacing: 0.12em;
}
.footer-nav {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}
.footer-nav a {
  font-size: 13px;
  color: rgba(245,240,230,0.75);
  letter-spacing: 0.16em;
  transition: color 0.3s ease;
}
.footer-nav a:hover { color: var(--bg-pure); }
.footer-rule {
  height: 1px;
  background: rgba(245,240,230,0.12);
  margin-bottom: 28px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(245,240,230,0.4);
}

/* ============ Responsive ============ */
@media (max-width: 980px) {
  .header-inner { padding: 0 24px; }
  .nav { display: none; }
  .nav-toggle { display: flex; }

  .container { padding: 0 24px; }
  .section { padding: 100px 0; }

  .hero-inner { padding: 0 24px 80px; }

  .biz-grid { grid-template-columns: 1fr; gap: 48px; }

  .shop-intro { grid-template-columns: 1fr; gap: 40px; }
  .shop-intro-img { aspect-ratio: 4 / 3; }

  .origins { gap: 8px; }
  .origin-name { font-size: clamp(20px, 6.5vw, 28px); letter-spacing: 0.04em; }
  .origin-area { font-size: 13px; }

  .block-heading { gap: 14px; font-size: 15px; letter-spacing: 0.2em; margin: 64px 0 40px; white-space: nowrap; }
  .block-rule { flex: 0 0 36px; }

  .varieties { grid-template-columns: 1fr 1fr; gap: 16px; }

  .scenes { grid-template-columns: 1fr; }

  .plan {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .plan-dots { display: none; }
  .plan-price { text-align: left; }

  .message-grid { grid-template-columns: 1fr; gap: 40px; }
  .message-photo { aspect-ratio: 4 / 5; max-width: 440px; }

  .info { grid-template-columns: 1fr; }
  .info dt { padding: 18px 0 6px; border-bottom: none; }
  .info dd { padding: 0 0 18px; }

  .contact-info { flex-direction: column; gap: 28px; }

  .footer-top { flex-direction: column; }
}