/* =========================================================
   各種事業一覧ページ
   写真は business-assets フォルダ内の同名画像を差し替えてください。
   ========================================================= */

:root {
  --brown: #725238;
  --brown-deep: #3f2b1f;
  --brown-soft: #956f4d;
  --gold: #b28a52;
  --paper: #eadfcd;
  --paper-light: #f8f2e7;
  --paper-deep: #d8c3a5;
  --white: #fffaf1;
  --ink: #2a211a;
  --muted: #69594b;
  --line: rgba(93, 67, 46, 0.34);
  --photo-white-filter: rgba(255, 255, 255, 0.8);
  --content-width: 1080px;
  --serif: "Yu Mincho", "游明朝", "Hiragino Mincho ProN",
    "ヒラギノ明朝 ProN W3", "Noto Serif JP", serif;
  --sans: "Yu Gothic", "游ゴシック", "Hiragino Kaku Gothic ProN",
    "ヒラギノ角ゴ ProN", "Noto Sans JP", sans-serif;
  --shadow: 0 12px 35px rgba(62, 53, 42, 0.16);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

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

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.content-width {
  width: min(calc(100% - 48px), var(--content-width));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 8px;
  left: 8px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--brown-deep);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

/* メインビジュアル */
.business-hero {
  position: relative;
  display: flex;
  min-height: 180px;
  padding: 24px;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--white);
  background: var(--brown-deep);
  text-align: center;
}


.business-hero__content {
  position: static;
  width: 100%;
  margin: 0 auto;
}

.business-hero__eyebrow,
.past-business__label {
  margin: 0 0 5px;
  color: #f0d39e;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.business-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.6rem, 7vw, 5.8rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.15;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.45);
}

.breadcrumb {
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
  padding: 15px 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.breadcrumb ol {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb li + li::before {
  margin: 0 10px;
  color: var(--brown);
  content: "›";
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--brown);
}

.page-introduction {
  padding: clamp(42px, 7vw, 78px) 0;
  background: var(--paper-light);
  text-align: center;
}

.page-introduction p {
  max-width: 760px;
  margin: 0 auto;
  font-family: var(--serif);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 2.1;
}

/* 事業パネル共通 */
.business-sections {
  padding: clamp(24px, 4vw, 48px) 0;
  background: var(--paper);
}

.business-panel {
  position: relative;
  isolation: isolate;
  width: min(calc(100% - 48px), 1100px);
  min-height: 420px;
  margin: 0 auto clamp(22px, 4vw, 36px);
  overflow: hidden;
  color: var(--ink);
  background-color: var(--paper-deep);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  border: 1px solid rgba(93, 67, 46, 0.4);
  box-shadow: var(--shadow);
}

.business-panel::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(var(--photo-white-filter), var(--photo-white-filter)),
    linear-gradient(90deg, rgba(248, 242, 231, 0.42), rgba(216, 195, 165, 0.2));
  content: "";
}

.business-panel--board {
  background-image: url("business-assets/board-meeting.jpg");
}

.business-panel--district {
  background-image: url("business-assets/district-event.jpg");
}

.business-panel--national {
  background-image: url("business-assets/national-stage.jpg");
}

.business-panel--masters {
  background-image: url("business-assets/master-training.jpg");
}

.business-panel--seminar {
  background-image: url("business-assets/seminar.jpg");
}

.business-panel__inner {
  width: min(calc(100% - 64px), 980px);
  padding-top: clamp(58px, 8vw, 96px);
  padding-bottom: clamp(62px, 9vw, 108px);
}

.business-panel__label {
  margin: 0 0 5px;
  color: var(--brown);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.business-panel__heading {
  display: flex;
  margin-bottom: clamp(30px, 5vw, 54px);
  align-items: flex-end;
  gap: 18px;
}

.business-panel__number {
  margin: 0;
  color: rgba(114, 82, 56, 0.22);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.6rem, 8vw, 6.4rem);
  line-height: 0.78;
}

.business-panel__heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.8vw, 3.8rem);
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.18;
}

.business-list {
  width: min(100%, 900px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.business-list li {
  display: grid;
  padding: 15px 6px;
  align-items: center;
  gap: 10px 22px;
  grid-template-columns: minmax(230px, 1.4fr) minmax(210px, 1fr) minmax(90px, auto);
  border-bottom: 1px solid var(--line);
}

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

.business-list--compact li {
  padding-block: 11px;
}

.business-list__name {
  font-weight: 700;
}

.business-list time,
.business-list__place {
  color: var(--muted);
}

.business-list__place::before {
  margin-right: 7px;
  color: var(--brown);
  content: "●";
  font-size: 0.6em;
  vertical-align: 0.15em;
}

.business-panel__note {
  width: min(100%, 900px);
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

/* 全国大会 */
.national-layout {
  display: grid;
  align-items: start;
  gap: clamp(28px, 5vw, 68px);
  grid-template-columns: minmax(210px, 0.72fr) minmax(0, 1.6fr);
}

.national-layout__poster {
  margin: 0;
  overflow: hidden;
  background: var(--paper-deep);
  border: 8px solid var(--paper-light);
  box-shadow: var(--shadow);
}

.national-layout__poster img {
  width: 100%;
  aspect-ratio: 3 / 4.25;
  object-fit: cover;
}

.national-layout__schedule {
  display: grid;
  gap: 42px;
}

.national-layout__schedule section,
.seminar-groups > section {
  padding-left: 22px;
  border-left: 3px solid var(--brown);
}

.national-layout__schedule h3,
.seminar-groups h3 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.5vw, 1.8rem);
  letter-spacing: 0.08em;
}

.national-layout__schedule p {
  margin: 2px 0;
}

.date-list {
  margin: 17px 0 0;
  padding: 0;
  list-style: none;
}

.date-list li {
  display: flex;
  padding: 6px 0;
  gap: 20px;
  border-top: 1px solid var(--line);
}

.date-list span {
  color: var(--brown);
}

/* セミナー */
.seminar-groups {
  display: grid;
  gap: 40px;
}

.seminar-groups .business-list {
  width: 100%;
}

/* 過去事業 */
.past-business {
  position: relative;
  isolation: isolate;
  padding: clamp(45px, 7vw, 75px) 0;
  overflow: hidden;
  color: var(--white);
  background-color: var(--brown-deep);
  background-image: url("business-assets/history.jpg");
  background-position: center 35%;
  background-size: cover;
  text-align: center;
}

.past-business::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: rgba(63, 43, 31, 0.82);
  content: "";
}

.past-business h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 500;
  letter-spacing: 0.12em;
}

.past-business p:not(.past-business__label) {
  margin: 0 0 30px;
}

.past-business__button {
  display: inline-flex;
  min-width: min(100%, 310px);
  min-height: 58px;
  padding: 13px 24px;
  align-items: center;
  justify-content: center;
  gap: 22px;
  color: var(--ink);
  background: var(--paper-light);
  border: 1px solid var(--paper-light);
  font-weight: 700;
  text-decoration: none;
  transition: color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

.past-business__button:hover,
.past-business__button:focus-visible {
  color: var(--white);
  background: transparent;
  transform: translateY(-2px);
}

/* フッター */
.site-footer {
  color: var(--muted);
  background: var(--paper-deep);
  border-top: 1px solid rgba(93, 67, 46, 0.4);
}

.site-footer__inner {
  display: flex;
  padding-top: 42px;
  padding-bottom: 38px;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-footer__brand img {
  width: 62px;
  height: 62px;
  object-fit: contain;
}

.site-footer__name {
  margin: 0 0 2px;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
}

.site-footer__brand p:last-child {
  margin: 0;
  font-size: 0.8rem;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px 20px;
  font-size: 0.82rem;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--brown);
}

.site-footer__copyright {
  margin: 0;
  padding: 13px 24px;
  background: rgba(93, 67, 46, 0.12);
  text-align: center;
}

.page-top {
  position: fixed;
  z-index: 90;
  right: 20px;
  bottom: 20px;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  color: var(--white);
  background: var(--brown);
  border: 1px solid rgba(248, 242, 231, 0.65);
  border-radius: 50%;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.22);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.page-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.page-top:hover,
.page-top:focus-visible {
  background: var(--brown-soft);
}

/* スクロール表示 */
.js-enabled .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

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

/* タブレット・スマートフォン */
@media (max-width: 860px) {
  .business-list li {
    grid-template-columns: 1fr auto;
  }

  .business-list__name {
    grid-column: 1 / -1;
  }

  .national-layout {
    grid-template-columns: minmax(150px, 0.55fr) minmax(0, 1fr);
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer__links {
    justify-content: flex-start;
  }
}

@media (max-width: 600px) {
  .content-width,
  .breadcrumb {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .business-hero {
  min-height: 130px;
  padding: 20px 16px;
  }

  .business-hero h1 {
    letter-spacing: 0.08em;
  }

  .page-introduction {
    text-align: left;
  }

  .business-panel {
    width: calc(100% - 24px);
    min-height: 0;
  }

  .business-panel__inner {
    width: calc(100% - 32px);
  }

  .business-panel__heading {
    align-items: center;
    gap: 12px;
  }

  .business-panel__number {
    font-size: 3.5rem;
  }

  .business-list li {
    display: flex;
    padding: 14px 4px;
    align-items: flex-start;
    flex-direction: column;
    gap: 1px;
  }

  .business-list time,
  .business-list__place {
    font-size: 0.9rem;
  }

  .national-layout {
    grid-template-columns: 1fr;
  }

  .national-layout__poster {
    width: min(72%, 280px);
    margin-inline: auto;
  }

  .national-layout__schedule section,
  .seminar-groups > section {
    padding-left: 14px;
  }

  .date-list li {
    align-items: flex-start;
    flex-direction: column;
    gap: 1px;
  }

  .site-footer__brand {
    align-items: flex-start;
  }

  .site-footer__brand img {
    width: 52px;
    height: 52px;
  }

  .page-top {
    right: 14px;
    bottom: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}