/* ============================================
   八十八舎 共通スタイル
   色・フォントは :root の変数だけ変えれば全ページに反映されます
   ============================================ */
:root {
  --color-bg: #FAF9F5;
  --color-bg-alt: #F3EFE6;
  --color-text: #2C2C2A;
  --color-text-muted: #666660;
  --color-primary: #8B7355;
  --color-primary-dark: #6E5A42;
  --color-accent: #B5452F;
  --color-border: #E8E6DF;
  --color-white: #FFFFFF;
  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --header-h: 70px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.9;
  word-break: keep-all;
  overflow-wrap: anywhere;
  padding-top: var(--header-h);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.w-wrap { display: inline-block; }

/* ---------- Header ---------- */
header {
  position: fixed; top: 0; left: 0; right: 0; height: var(--header-h);
  background: rgba(250, 249, 245, 0.97);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}
.nav-container {
  max-width: 1160px; margin: 0 auto; padding: 0 1.25rem; height: 100%;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.logo { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 600; color: var(--color-primary); white-space: nowrap; }
.logo img { height: 40px; width: auto; }
.nav-links { list-style: none; display: flex; align-items: center; gap: 1.4rem; font-size: .92rem; font-weight: 500; }
.nav-links a { padding: .3rem 0; border-bottom: 2px solid transparent; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--color-primary); border-color: var(--color-primary); }
.nav-links .nav-cta a {
  background: var(--color-accent); color: #fff; padding: .55rem 1.1rem; border-radius: 999px; border: none;
}
.nav-links .nav-cta a:hover { background: #963722; color: #fff; }
.menu-btn { display: none; }

@media (max-width: 960px) {
  .menu-btn {
    display: flex; flex-direction: column; gap: 6px; position: relative; z-index: 1005;
    background: none; border: none; cursor: pointer; padding: 10px; -webkit-tap-highlight-color: transparent;
  }
  .menu-btn span { display: block; width: 26px; height: 2px; background: var(--color-primary); transition: all .3s ease; }
  .menu-btn.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .menu-btn.active span:nth-child(2) { opacity: 0; }
  .menu-btn.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .nav-menu {
    position: fixed; top: 0; right: -100%; width: 290px; max-width: 85vw; height: 100vh;
    background: var(--color-white); box-shadow: -4px 0 15px rgba(0,0,0,.08);
    padding: 90px 2rem 2rem; transition: right .3s ease, visibility .3s ease;
    z-index: 1001; visibility: hidden; overflow-y: auto;
  }
  .nav-menu.active { right: 0; visibility: visible; }
  .nav-links { flex-direction: column; align-items: stretch; gap: 0; font-size: 1.05rem; }
  .nav-links a { display: block; padding: 1rem 0; border-bottom: 1px solid var(--color-border); }
  .nav-links .nav-cta { margin-top: 1.5rem; }
  .nav-links .nav-cta a { text-align: center; border-radius: 6px; }
}

/* ---------- Hero ---------- */
.hero {
  text-align: center; padding: 6rem 1.25rem 5rem;
  background: linear-gradient(rgba(244,241,234,.85), rgba(244,241,234,.85)), url('../images/hero.jpg') center/cover no-repeat;
}
.hero-title { font-family: var(--font-serif); font-size: clamp(1.6rem, 4.5vw, 2.5rem); color: var(--color-primary); line-height: 1.6; margin-bottom: 1.2rem; }
.hero-sub { font-size: 1.05rem; max-width: 720px; margin: 0 auto 2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Page header (下層ページ) ---------- */
.page-head { background: var(--color-bg-alt); padding: 3.5rem 1.25rem 3rem; text-align: center; border-bottom: 1px solid var(--color-border); }
.page-head .en { display: block; font-size: .8rem; letter-spacing: .25em; color: var(--color-primary); margin-bottom: .4rem; }
.page-title { font-family: var(--font-serif); font-size: clamp(1.5rem, 4vw, 2rem); color: var(--color-primary); }
.page-lead { max-width: 720px; margin: 1rem auto 0; color: var(--color-text-muted); }

/* ---------- Layout ---------- */
.container { max-width: 1040px; margin: 0 auto; padding: 4rem 1.25rem; }
.container.narrow { max-width: 800px; }
.section-alt { background: var(--color-bg-alt); }
.section-title { font-family: var(--font-serif); font-size: clamp(1.4rem, 3.5vw, 1.75rem); text-align: center; color: var(--color-primary); margin-bottom: 2.5rem; }
.section-title .en { display: block; font-family: var(--font-sans); font-size: .75rem; letter-spacing: .25em; margin-bottom: .3rem; }
.center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.muted { color: var(--color-text-muted); font-size: .9rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; background: var(--color-primary); color: #fff; font-weight: 500;
  padding: .9rem 2.2rem; border-radius: 999px; border: none; cursor: pointer; font-size: 1rem;
  font-family: inherit; transition: background .2s;
}
.btn:hover { background: var(--color-primary-dark); }
.btn-accent { background: var(--color-accent); }
.btn-accent:hover { background: #963722; }
.btn-outline { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn[disabled] { opacity: .6; cursor: wait; }

/* ---------- Cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 2rem; }
.card { background: var(--color-white); border: 1px solid var(--color-border); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; }
.card-img { width: 100%; height: 190px; object-fit: cover; }
.card-body { padding: 1.6rem; }
.card-title { font-family: var(--font-serif); font-size: 1.2rem; color: var(--color-primary); margin-bottom: .7rem; line-height: 1.5; }

.section-block { background: var(--color-white); padding: 2rem; border: 1px solid var(--color-border); border-radius: 8px; margin-bottom: 2rem; }
.block-img { width: 100%; height: 280px; object-fit: cover; border-radius: 6px; margin-bottom: 1.5rem; }
.block-title { font-family: var(--font-serif); font-size: 1.35rem; color: var(--color-primary); margin-bottom: 1rem; line-height: 1.5; }

/* ---------- Banner (BtoB誘導) ---------- */
.banner {
  display: grid; grid-template-columns: 1fr 1fr; background: var(--color-white);
  border: 1px solid var(--color-border); border-radius: 8px; overflow: hidden;
}
.banner img { width: 100%; height: 100%; min-height: 260px; object-fit: cover; }
.banner-body { padding: 2.5rem; display: flex; flex-direction: column; justify-content: center; gap: 1rem; }
@media (max-width: 760px) { .banner { grid-template-columns: 1fr; } .banner-body { padding: 1.8rem; } }

/* ---------- Tags ---------- */
.tags { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; list-style: none; }
.tags li { background: var(--color-white); border: 1px solid var(--color-border); padding: .4rem 1rem; border-radius: 999px; font-size: .9rem; }

/* ---------- Tables ---------- */
.table { width: 100%; border-collapse: collapse; background: var(--color-white); border: 1px solid var(--color-border); }
.table th, .table td { padding: 1.1rem 1.25rem; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.table th { width: 28%; background: var(--color-bg-alt); color: var(--color-primary-dark); font-weight: 500; white-space: nowrap; }
@media (max-width: 600px) {
  .table th, .table td { display: block; width: 100%; }
  .table th { border-bottom: none; padding-bottom: .4rem; }
  .table td { padding-top: .4rem; }
}
.table-scroll { overflow-x: auto; }
.matrix { min-width: 560px; }
.matrix th, .matrix td { text-align: center; width: auto; white-space: normal; }
.matrix td:first-child { text-align: left; font-weight: 500; }

/* ---------- Flow ---------- */
.flow { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; counter-reset: step; }
.flow li {
  position: relative; background: var(--color-white); border: 1px solid var(--color-border); border-radius: 8px;
  padding: 2.4rem 1.2rem 1.4rem; text-align: center; counter-increment: step;
}
.flow li::before {
  content: "STEP " counter(step); position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--color-primary); color: #fff; font-size: .75rem; letter-spacing: .1em; padding: .2rem .9rem; border-radius: 999px;
}
.flow li:not(:last-child)::after {
  content: ""; position: absolute; right: -14px; top: 50%; transform: translateY(-50%);
  border-left: 9px solid var(--color-primary); border-top: 7px solid transparent; border-bottom: 7px solid transparent;
}
.flow h3 { font-family: var(--font-serif); color: var(--color-primary); font-size: 1.1rem; margin-bottom: .5rem; }
.flow p { font-size: .9rem; text-align: left; }
@media (max-width: 860px) {
  .flow { grid-template-columns: 1fr; gap: 2rem; }
  .flow li:not(:last-child)::after {
    right: auto; left: 50%; top: auto; bottom: -22px; transform: translateX(-50%);
    border-left: 7px solid transparent; border-right: 7px solid transparent; border-top: 9px solid var(--color-primary); border-bottom: none;
  }
}

/* ---------- FAQ ---------- */
.faq details { background: var(--color-white); border: 1px solid var(--color-border); border-radius: 6px; margin-bottom: 1rem; }
.faq summary { cursor: pointer; padding: 1.1rem 1.25rem; font-weight: 500; list-style: none; }
.faq summary::before { content: "Q. "; color: var(--color-primary); font-weight: 700; }
.faq details p { padding: 0 1.25rem 1.2rem; }
.faq details p::before { content: "A. "; color: var(--color-accent); font-weight: 700; }

/* ---------- Products ---------- */
.product-card {
  display: grid; grid-template-columns: 220px 1fr; gap: 1.75rem; background: var(--color-white);
  border: 1px solid var(--color-border); border-radius: 8px; padding: 1.5rem; margin-bottom: 1.5rem;
}
.product-img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 6px; }
.product-title { font-family: var(--font-serif); font-size: 1.3rem; color: var(--color-primary); margin-bottom: .6rem; }
.spec { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; margin-top: .9rem; font-size: .85rem; color: var(--color-text-muted); }
.spec li span { color: var(--color-primary-dark); font-weight: 500; margin-right: .3rem; }
@media (max-width: 640px) { .product-card { grid-template-columns: 1fr; } .product-img { aspect-ratio: 16/10; } }

/* ---------- Greeting ---------- */
.greeting { display: grid; grid-template-columns: 240px 1fr; gap: 2rem; align-items: start; }
.greeting img { border-radius: 6px; aspect-ratio: 4/5; object-fit: cover; }
.greeting .sign { text-align: right; margin-top: 1rem; font-family: var(--font-serif); }
@media (max-width: 640px) { .greeting { grid-template-columns: 1fr; } .greeting img { max-width: 240px; margin: 0 auto; } }
.map { width: 100%; height: 360px; border: 0; border-radius: 6px; margin-top: 1.5rem; }

/* ---------- Forms ---------- */
.form { background: var(--color-white); border: 1px solid var(--color-border); border-radius: 8px; padding: 2rem; }
.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; font-weight: 500; margin-bottom: .45rem; }
.req, .opt { font-size: .72rem; padding: .1rem .5rem; border-radius: 3px; margin-left: .5rem; vertical-align: middle; font-weight: 500; }
.req { background: var(--color-accent); color: #fff; }
.opt { background: var(--color-border); color: var(--color-text-muted); }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: .8rem 1rem; border: 1px solid #D5D2C8; border-radius: 4px;
  font-size: 1rem; font-family: inherit; background: #fff; color: var(--color-text);
}
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } .form { padding: 1.4rem; } }
.checks { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }
.checks label { display: flex; align-items: center; gap: .4rem; font-weight: 400; }
.agree { text-align: center; margin: 1.5rem 0; }
.agree a { color: var(--color-primary); text-decoration: underline; }
.hp { position: absolute; left: -9999px; }
.form-msg { display: none; margin-top: 1.5rem; padding: 1rem 1.25rem; border-radius: 6px; }
.form-msg.ok { display: block; background: #EEF5EA; border: 1px solid #B9D3AC; }
.form-msg.ng { display: block; background: #FBEDEA; border: 1px solid #E5B7AC; }

/* ---------- CTA ---------- */
.cta { background: var(--color-primary); color: #fff; text-align: center; padding: 4rem 1.25rem; }
.cta h2 { font-family: var(--font-serif); font-size: clamp(1.3rem, 3.5vw, 1.7rem); margin-bottom: .8rem; }
.cta p { margin-bottom: 1.8rem; opacity: .92; }
.cta .btn { background: #fff; color: var(--color-primary-dark); }
.cta .btn:hover { background: var(--color-bg-alt); }

/* ---------- Coming soon ---------- */
.coming { text-align: center; padding: 5rem 1.25rem; }
.coming .badge { display: inline-block; border: 1px solid var(--color-primary); color: var(--color-primary); padding: .3rem 1.2rem; border-radius: 999px; letter-spacing: .2em; margin-bottom: 1.5rem; }

/* ---------- Legal text ---------- */
.legal h2 { font-family: var(--font-serif); color: var(--color-primary); font-size: 1.15rem; margin: 2rem 0 .6rem; }
.legal ol, .legal ul { padding-left: 1.5rem; }

/* ---------- Footer ---------- */
footer { background: #F2EFEA; border-top: 1px solid var(--color-border); padding: 3rem 1.25rem 2rem; font-size: .88rem; color: var(--color-text-muted); }
.footer-inner { max-width: 1040px; margin: 0 auto; display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.footer-brand .logo { display: inline-block; margin-bottom: .5rem; }
.footer-links { list-style: none; display: grid; grid-template-columns: repeat(2, auto); gap: .4rem 2.5rem; }
.footer-links a:hover { color: var(--color-primary); }
.copyright { text-align: center; margin-top: 2.5rem; font-size: .8rem; }