/* =========================================================
   株式会社NAGI コーポレートサイト
   仕様: DESIGN.md / Mobile First
   ========================================================= */

/* ---------- Fonts（OS のフォントのみ） ---------- */
@font-face {
  font-family: "YuGothicM";
  src: local("Yu Gothic Medium"), local("YuGothic-Medium");
  font-weight: 400;
}
@font-face {
  font-family: "YuGothicM";
  src: local("Yu Gothic Bold"), local("YuGothic-Bold");
  font-weight: 700;
}

/* ---------- Tokens ---------- */
:root {
  --c-bg: #f7f5f0;
  --c-white: #ffffff;
  --c-beige: #efe9df;
  --c-navy: #1c2b44;
  --c-ink: #2a3240;
  --c-sub: #56657a;
  --c-line: #d9d3c7;
  --c-gold-line: #b59b6a;
  --c-gold-text: #7a5e32;
  --c-gold-light: #cdb88f;
  --c-draft: #8a4b2a;

  --f-serif: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --f-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "YuGothicM", "Yu Gothic", "YuGothic", "Meiryo", "Noto Sans JP", sans-serif;

  --header-h: 64px;
  --gutter: 1.5rem;
  --max-w: 1120px;
  --section-y: 5rem;
  --ease: cubic-bezier(.25, .6, .3, 1);
}

@media (min-width: 768px) {
  :root {
    --header-h: 76px;
    --gutter: 2.5rem;
    --section-y: 6rem;
  }
}
@media (min-width: 1024px) {
  :root { --section-y: 8rem; }
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .04em;
  font-feature-settings: "palt" 0;
  overflow-wrap: anywhere;
  line-break: strict;
}
@media (min-width: 1024px) {
  body { font-size: 17px; }
}

h1, h2, h3, p, ul, dl, dd { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--c-navy);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: .25em;
}
a:hover { text-decoration-color: var(--c-gold-line); }

:focus-visible {
  outline: 2px solid var(--c-navy);
  outline-offset: 3px;
  border-radius: 2px;
}

.phrase { display: inline-block; }

.container {
  width: 100%;
  max-width: calc(var(--max-w) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 100;
  padding: .75rem 1rem;
  background: var(--c-navy);
  color: var(--c-white);
  text-decoration: none;
}
.skip-link:focus { top: .5rem; outline-color: var(--c-gold-light); }

/* ---------- Draft mode ---------- */
.draft-badge,
.draft-note { display: none; }

[data-draft="true"] .draft-badge {
  display: inline-block;
  padding: 0 .5em;
  border: 1px solid var(--c-draft);
  color: var(--c-draft);
  font-family: var(--f-sans);
  font-size: .6875rem;
  font-weight: 700;
  line-height: 1.7;
  letter-spacing: .12em;
  vertical-align: middle;
}
[data-draft="true"] .draft-note {
  display: inline;
  margin-left: .5em;
  color: var(--c-draft);
  font-size: .75rem;
}

.is-todo { display: none; }
[data-draft="true"] .is-todo {
  display: inline-block;
  padding: .1em .6em;
  border: 1px dashed var(--c-draft);
  color: var(--c-draft);
  font-family: var(--f-sans);
  font-size: .8125rem;
  font-weight: 400;
  letter-spacing: .02em;
  line-height: 1.7;
}
[data-draft="true"] p.is-todo { display: block; width: fit-content; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 245, 240, .96);
  box-shadow: 0 1px 0 transparent;
  transition: box-shadow .3s var(--ease);
}
.site-header.is-scrolled { box-shadow: 0 1px 0 var(--c-line); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: calc(var(--max-w) + var(--gutter) * 2);
  height: var(--header-h);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  min-height: 44px;
  color: var(--c-navy);
  text-decoration: none;
  white-space: nowrap;
}
.logo__mark {
  flex: none;
  width: auto;
  height: 34px;
}
.logo__en {
  font-family: var(--f-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: .08em;
}
.logo__ja {
  display: none; /* 1023px までは隠す */
  font-size: .75rem;
  color: var(--c-sub);
  letter-spacing: .1em;
}

/* Menu button（スマホ） */
.menu-button {
  display: none;
  align-items: center;
  gap: .6rem;
  min-width: 44px;
  min-height: 44px;
  margin-right: -.5rem;
  padding: 0 .5rem;
  border: 0;
  background: transparent;
  color: var(--c-navy);
  font: inherit;
  font-size: .8125rem;
  letter-spacing: .1em;
  cursor: pointer;
}
.js .menu-button { display: inline-flex; }

.menu-button__icon {
  position: relative;
  display: inline-block;
  width: 22px;
  height: 14px;
}
.menu-button__icon span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}
.menu-button__icon span:nth-child(1) { top: 0; }
.menu-button__icon span:nth-child(2) { top: 6.5px; }
.menu-button__icon span:nth-child(3) { top: 13px; }

.site-header.is-open .menu-button__icon span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.site-header.is-open .menu-button__icon span:nth-child(2) { opacity: 0; }
.site-header.is-open .menu-button__icon span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Nav（スマホ: パネル） */
.site-nav__link {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  min-height: 44px;
  color: var(--c-navy);
  text-decoration: none;
}
.site-nav__en {
  font-family: var(--f-serif);
  font-size: 1rem;
  letter-spacing: .14em;
}
.site-nav__ja {
  color: var(--c-sub);
  font-size: .75rem;
  letter-spacing: .1em;
}

.js .site-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
  background: var(--c-bg);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}
.js .site-header.is-open .site-nav { display: block; }

.js .site-nav__list { padding: .75rem var(--gutter) 1.5rem; }
.js .site-nav__list li + li { border-top: 1px solid var(--c-line); }
.js .site-nav__link { align-items: center; padding-block: .75rem; }

/* JS なし（スマホ）: ナビをそのまま並べる */
html:not(.js) .site-header { position: static; }
html:not(.js) .site-header__inner { flex-wrap: wrap; height: auto; padding-block: .5rem; }
html:not(.js) .site-nav__list { display: flex; flex-wrap: wrap; column-gap: 1.25rem; }
html:not(.js) .site-nav__ja { display: none; }

/* 768px〜: 横並びナビ */
@media (min-width: 768px) {
  .js .menu-button { display: none; }

  .js .site-nav,
  .site-nav {
    display: block;
    position: static;
    max-height: none;
    overflow: visible;
    background: transparent;
    border: 0;
  }
  .js .site-nav__list,
  .site-nav__list {
    display: flex;
    gap: 1.75rem;
    padding: 0;
  }
  .js .site-nav__list li + li { border-top: 0; }

  .js .site-nav__link,
  .site-nav__link {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding-block: 0;
    line-height: 1.5;
  }
  .site-nav__en { font-size: .8125rem; letter-spacing: .16em; }
  html:not(.js) .site-nav__ja,
  .site-nav__ja { display: block; font-size: .625rem; }

  .site-nav__link .site-nav__en {
    background: linear-gradient(var(--c-gold-line), var(--c-gold-line)) no-repeat center bottom / 0 1px;
    transition: background-size .3s var(--ease);
  }
  .site-nav__link:hover .site-nav__en { background-size: 100% 1px; }

  .logo__mark { height: 40px; }

  html:not(.js) .site-header { position: sticky; }
  html:not(.js) .site-header__inner { flex-wrap: nowrap; height: var(--header-h); padding-block: 0; }
}

@media (min-width: 1024px) {
  .logo__ja { display: inline; }
  .js .site-nav__list,
  .site-nav__list { gap: 2.5rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: 4.5rem 0;
  text-align: center;
  overflow: hidden;
}
.hero__inner { position: relative; z-index: 1; }

.hero__logo {
  display: block;
  width: auto;
  height: clamp(150px, 40vw, 200px);
  margin: 0 auto 2.25rem;
}
.hero__title {
  margin-top: 0;
  color: var(--c-navy);
  font-family: var(--f-serif);
  font-size: clamp(2.125rem, 7vw, 3.5rem);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .12em;
}
.hero__rule {
  display: block;
  width: 3rem;
  height: 1px;
  margin: 2rem auto;
  background: var(--c-gold-line);
}
.hero__catch {
  color: var(--c-ink);
  font-family: var(--f-serif);
  font-size: clamp(1.0625rem, 3.6vw, 1.375rem);
  letter-spacing: .16em;
  line-height: 2;
}
.hero__draft { margin-top: .75rem; font-size: .75rem; }
.hero__draft:empty { display: none; }

.hero__waves {
  display: block;
  width: 100%;
  height: 72px;
  margin-top: 4rem;
}
.wave {
  fill: none;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}
.wave--gold { stroke: var(--c-gold-line); opacity: .55; }
.wave--gray { stroke: var(--c-sub); opacity: .28; }
.wave--faint { opacity: .16; }

@media (min-width: 768px) {
  .hero { padding-top: 6rem; }
  .hero__waves { height: 90px; margin-top: 5rem; }
  .hero__logo { height: 210px; margin-bottom: 2.5rem; }
}
@media (min-width: 1024px) {
  .hero { padding-top: 7rem; }
}

/* ---------- Section ---------- */
.section { padding-block: var(--section-y); }
.section--white { background: var(--c-white); }
.section--beige { background: var(--c-beige); }

.section-head { margin-bottom: 3rem; }
@media (min-width: 1024px) {
  .section-head { margin-bottom: 4rem; }
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: var(--c-gold-text);
  font-family: var(--f-serif);
  font-size: .75rem;
  letter-spacing: .28em;
  line-height: 1.5;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  flex: none;
  width: 2rem;
  height: 1px;
  background: var(--c-gold-line);
}

.section-title {
  margin-top: .75rem;
  color: var(--c-navy);
  font-family: var(--f-serif);
  font-size: clamp(1.5rem, 4.5vw, 2rem);
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .12em;
}
.section-lead {
  margin-top: 1.25rem;
  color: var(--c-sub);
}

/* ---------- Philosophy ---------- */
.philosophy { max-width: 44rem; }
.philosophy__statement {
  color: var(--c-navy);
  font-family: var(--f-serif);
  font-size: clamp(1.25rem, 4.2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.8;
  letter-spacing: .12em;
}
.philosophy__lead { margin-top: 1.5rem; }

.pillars {
  display: grid;
  gap: 0;
  margin-top: 3.5rem;
  border-top: 1px solid var(--c-line);
}
.pillar {
  padding-block: 2rem;
  border-bottom: 1px solid var(--c-line);
}
.pillar__en {
  color: var(--c-gold-text);
  font-family: var(--f-serif);
  font-size: .6875rem;
  letter-spacing: .28em;
  text-transform: uppercase;
}
.pillar__title {
  margin-top: .25rem;
  color: var(--c-navy);
  font-family: var(--f-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: .12em;
}
.pillar__text {
  margin-top: .75rem;
  color: var(--c-ink);
  font-size: .9375rem;
}

@media (min-width: 768px) {
  .pillars {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 3rem;
  }
}
@media (min-width: 1024px) {
  .pillars {
    grid-template-columns: repeat(4, 1fr);
    column-gap: 0;
    margin-top: 4.5rem;
    border-bottom: 1px solid var(--c-line);
  }
  .pillar {
    padding: 2.25rem 1.75rem;
    border-bottom: 0;
  }
  .pillar + .pillar { border-left: 1px solid var(--c-line); }
  .pillar:first-child { padding-left: 0; }
  .pillar:last-child { padding-right: 0; }
}

/* ---------- Business ---------- */
.business-list {
  display: grid;
  gap: 1.5rem;
}
.business-card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-line);
}
.business-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.business-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.business-card__media--text {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  background: var(--c-navy);
}
.business-card__media--text::after {
  content: "";
  width: 2rem;
  height: 1px;
  background: var(--c-gold-line);
}
.business-card__mark {
  color: var(--c-white);
  font-family: var(--f-serif);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 600;
  letter-spacing: .24em;
  margin-right: -.24em; /* letter-spacing 分の右余白を相殺 */
}
.business-card__body {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  padding: 1.75rem 1.5rem 2rem;
}
.business-card__category {
  color: var(--c-gold-text);
  font-size: .75rem;
  letter-spacing: .16em;
}
.business-card__name {
  color: var(--c-navy);
  font-family: var(--f-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: .14em;
}
.business-card__lead {
  color: var(--c-navy);
  font-family: var(--f-serif);
  font-size: 1.0625rem;
  letter-spacing: .1em;
  line-height: 1.8;
}
.business-card__desc { color: var(--c-ink); font-size: .9375rem; }
.business-card__link-wrap {
  display: flex;
  flex-wrap: wrap;
  column-gap: 1.75rem;
  margin-top: auto;
  padding-top: .5rem;
}
.business-card__link {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  min-height: 44px;
  font-size: .875rem;
  letter-spacing: .1em;
}

@media (min-width: 768px) {
  .business-list { grid-template-columns: repeat(2, 1fr); gap: 2rem; }

  /* 1 枚だけのときは横長 */
  .business-card:only-child {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 5fr 6fr;
  }
  .business-card:only-child .business-card__media {
    aspect-ratio: auto;
    min-height: 18rem;
  }
  .business-card:only-child .business-card__body {
    justify-content: center;
    padding: 2.5rem 3rem;
  }
  .business-card:only-child .business-card__link-wrap { margin-top: .5rem; }
}
@media (min-width: 1024px) {
  .business-list { grid-template-columns: repeat(3, 1fr); }
  .business-card:only-child .business-card__media { min-height: 22rem; }
  .business-card:only-child .business-card__body { padding: 3rem 4rem; }
}

/* ---------- Company ---------- */
.company-table {
  max-width: 56rem;
  border-top: 1px solid var(--c-line);
}
.company-table__row {
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--c-line);
}
.company-table dt {
  color: var(--c-sub);
  font-size: .8125rem;
  letter-spacing: .12em;
}
.company-table dd { margin-top: .25rem; }

@media (min-width: 768px) {
  .company-table__row {
    display: grid;
    grid-template-columns: 11rem 1fr;
    gap: 2rem;
    padding-block: 1.5rem;
  }
  .company-table dt { font-size: .875rem; padding-top: .1em; }
  .company-table dd { margin-top: 0; }
}

/* ---------- News ---------- */
.news { max-width: 56rem; }
.news-list { border-top: 1px solid var(--c-line); }
.news-list:empty { display: none; }
.news-item {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 1rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--c-line);
}
.news-item__date { color: var(--c-sub); font-size: .875rem; letter-spacing: .08em; }
.news-item__category {
  justify-self: start;
  padding: 0 .75em;
  border: 1px solid var(--c-line);
  color: var(--c-sub);
  font-size: .75rem;
  line-height: 1.9;
}
.news-item__title { grid-column: 1 / -1; margin-top: .25rem; }
@media (min-width: 768px) {
  .news-item { grid-template-columns: 7rem 7rem 1fr; align-items: baseline; }
  .news-item__title { grid-column: auto; margin-top: 0; }
}

.news-empty {
  padding-block: 1.5rem;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  color: var(--c-sub);
}

/* ---------- Contact ---------- */
.contact { max-width: 56rem; }
.contact__box {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--c-white);
  border: 1px solid var(--c-line);
}
.contact__row + .contact__row { margin-top: 1rem; }
.contact__row dt { color: var(--c-sub); font-size: .8125rem; letter-spacing: .12em; }
.contact__note { margin-top: 1.5rem; color: var(--c-sub); font-size: .875rem; }

@media (min-width: 768px) {
  .contact__box { padding: 2rem 2.5rem; }
  .contact__row { display: grid; grid-template-columns: 7rem 1fr; gap: 1.5rem; }
}

/* ---------- Footer ---------- */
.site-footer {
  padding-block: 3.5rem 2.5rem;
  background: var(--c-navy);
  color: var(--c-white);
}
.site-footer :focus-visible { outline-color: var(--c-gold-light); }
.site-footer__inner {
  display: grid;
  gap: 2rem;
}
.site-footer__logo { display: flex; flex-direction: column; align-items: flex-start; gap: .25rem; }
.site-footer__mark { width: auto; height: 48px; margin-bottom: .75rem; }
.site-footer__en {
  font-family: var(--f-serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: .08em;
}
.site-footer__ja { color: var(--c-gold-light); font-size: .75rem; letter-spacing: .12em; }

.site-footer__nav ul {
  display: flex;
  flex-wrap: wrap;
  column-gap: 1.5rem;
}
.site-footer__nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--c-white);
  font-size: .8125rem;
  text-decoration: none;
}
.site-footer__nav a:hover { text-decoration: underline; text-decoration-color: var(--c-gold-light); }

.site-footer__copy {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, .16);
  color: var(--c-gold-light);
  letter-spacing: .08em;
}
.site-footer__copy small { font-size: .75rem; }

@media (min-width: 768px) {
  .site-footer { padding-block: 4.5rem 3rem; }
  .site-footer__inner {
    grid-template-columns: auto 1fr;
    align-items: start;
    column-gap: 4rem;
  }
  .site-footer__nav ul { justify-content: flex-end; }
  .site-footer__copy { grid-column: 1 / -1; }
}

/* ---------- Privacy page ---------- */
.page-hero {
  padding-block: 4.5rem 3rem;
  border-bottom: 1px solid var(--c-line);
}
.page-hero .section-title { font-size: clamp(1.625rem, 5vw, 2.25rem); }
@media (min-width: 768px) {
  .page-hero { padding-block: 6rem 4rem; }
}

.prose { max-width: 46rem; }
.prose > * + * { margin-top: 1.25rem; }
.prose h2 {
  margin-top: 3rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--c-line);
  color: var(--c-navy);
  font-family: var(--f-serif);
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: .08em;
  line-height: 1.6;
}
.prose ol,
.prose ul {
  margin-bottom: 0;
  padding-left: 1.5em;
}
.prose ul { list-style: disc; }
.prose li + li { margin-top: .5rem; }
.prose li::marker { color: var(--c-sub); }
.prose dl > div + div { margin-top: .5rem; }
.prose dl dt { display: inline; color: var(--c-sub); }
.prose dl dt::after { content: "："; }
.prose dl dd { display: inline; }
.prose .prose__end { margin-top: 3rem; color: var(--c-sub); text-align: right; }

.back-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 3rem;
  font-size: .9375rem;
}

/* ---------- Reveal（うっすら表示） ---------- */
.reveal-ready .reveal:not(.is-visible) {
  opacity: 0;
  transform: translateY(12px);
}
.reveal-ready .reveal {
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}
@media (prefers-reduced-motion: reduce) {
  .reveal-ready .reveal,
  .reveal-ready .reveal:not(.is-visible) {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Print ---------- */
@media print {
  .site-header { position: static; }
  .menu-button, .hero__waves, .skip-link { display: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}