/* ============================================================
   THE MONEY — stylesheet
   ヘッダーバナー（白〜シルバーの階調に黒のロゴ）に全体を合わせた
   ライトトーン。見出しは明朝、本文はゴシック。装飾は最小限。
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  --bg:            #ffffff;
  --bg-alt:        #f2f3f5;   /* 交互セクション */
  --bg-hero:       #fbfbfc;   /* バナー画像の地色に合わせて調整可 */
  --hero-banner:   url("../img/header.jpg");  /* ヘッダーバナーの参照はここ1箇所 */
  --bg-dark:       #0b0b0b;   /* フッター・ロゴタイル */

  --line:          #e3e5e8;
  --line-strong:   #c7cbd1;

  --text:          #0d0d0d;
  --text-muted:    #565b62;
  --text-dim:      #686e75;
  --text-on-dark:  #f2f2f2;

  --yt:            #ff0000;
  --candle-up:     #1a7f4b;
  --candle-down:   #b8352a;

  --font-serif:    "Shippori Mincho B1", "EB Garamond", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans:     "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;

  --max:           1080px;
  --pad:           clamp(20px, 5vw, 40px);
  --section-y:     clamp(64px, 10vw, 120px);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-family: var(--font-serif); font-weight: 600; line-height: 1.45; letter-spacing: .06em; }
p  { margin: 0 0 1.2em; }
p:last-child { margin-bottom: 0; }
ul, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
:focus-visible { outline: 2px solid #0d0d0d; outline-offset: 3px; }

.container { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--pad); }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: #0d0d0d; color: #fff; padding: 10px 16px; font-size: 14px;
}
.skip-link:focus { left: 0; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 11px var(--pad);
  background: rgba(255,255,255,0);
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border-bottom-color: var(--line);
}
.site-header__brand { display: flex; align-items: center; gap: 11px; opacity: 0; transform: translateY(-4px); transition: opacity .35s ease, transform .35s ease; }
.site-header.is-scrolled .site-header__brand { opacity: 1; transform: none; }
.site-header__mark { width: 34px; height: 34px; border-radius: 2px; }
.site-header__name { font-family: var(--font-serif); font-size: 15px; letter-spacing: .16em; }

.site-header__nav { display: flex; gap: clamp(10px, 1.8vw, 24px); }
.site-header__nav a {
  font-size: 12.5px; letter-spacing: .12em; color: var(--text-muted);
  padding-bottom: 2px; border-bottom: 1px solid transparent; transition: color .25s, border-color .25s;
}
.site-header__nav a:hover { color: var(--text); border-bottom-color: var(--line-strong); }
@media (max-width: 860px) {
  .site-header__nav { display: none; }
  .site-header__brand { opacity: 1; transform: none; }
  .site-header__name { font-size: 13px; }
  .site-header__mark { width: 28px; height: 28px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 104px var(--pad) clamp(48px, 9vw, 72px);
  background: var(--bg-hero);
  overflow: hidden;
  text-align: center;
  border-bottom: 1px solid var(--line);
}
.hero__chart { position: absolute; inset: auto 0 0; height: 34%; opacity: .10; pointer-events: none; }
.hero__chart-svg { width: 100%; height: 100%; }
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(251,251,252,0) 58%, rgba(251,251,252,.9) 100%);
}
.hero__inner { position: relative; z-index: 2; width: 100%; max-width: 1180px; }

.hero__title { margin: 0 0 clamp(22px, 3.4vw, 34px); font-weight: 600; }

/* 横長バナー（PC）。白地の画像を乗算合成して、背景の階調と継ぎ目なく馴染ませる */
/* PCのみ表示する横長バナー。
   背景画像として指定しているため、モバイル幅ではダウンロードも発生しません。 */
.hero__banner { display: none; }
@media (min-width: 900px) {
  /* バナーはページ最上部にぴったり付けて、上端に境目を作らない（マストヘッド配置） */
  .hero { padding: 0 0 clamp(26px, 4vw, 44px); }
  .hero__inner { max-width: none; }

  .hero__banner {
    display: block;
    width: 100vw; max-width: none;
    margin-left: calc(50% - 50vw);      /* 左右の継ぎ目をなくす全幅表示 */
    aspect-ratio: 2042 / 615;           /* 画像の縦横比。差し替え時はここも合わせる */
    max-height: 56svh;                  /* 横長・低い画面では上下を切り詰める（ロゴは中央なので欠けない） */
    background: var(--hero-banner) center / cover no-repeat;
    /* 下端をページ地色へ溶かして、バナーとページの境目を目立たせない */
    -webkit-mask-image: linear-gradient(to bottom, #000 74%, transparent 100%);
            mask-image: linear-gradient(to bottom, #000 74%, transparent 100%);
    animation: fade-in 1.1s ease both;
  }
  .hero__title { margin: 0; }
}
/* 縦積み（モバイル）: ロゴタイル＋文字で構成 */
.hero__stack { display: none; flex-direction: column; align-items: center; gap: 18px; }
.hero__mark { width: clamp(96px, 30vw, 132px); height: auto; border-radius: 3px; }
.hero__stack .hero__kicker,
.hero__stack .hero__tagline { display: block; }

.hero__kicker {
  font-family: var(--font-serif); font-weight: 500;
  font-size: clamp(12px, 3.2vw, 14px);
  letter-spacing: .34em; text-indent: .34em; color: var(--text-muted);
}
.hero__tagline {
  font-family: var(--font-serif);
  font-size: clamp(24px, 6.6vw, 34px);
  letter-spacing: .1em; line-height: 1.5;
}

.hero__lead {
  position: relative; z-index: 2;
  font-size: clamp(13.5px, 3.3vw, 16px); color: var(--text-muted);
  letter-spacing: .08em; margin: 0 0 clamp(28px, 4.5vw, 40px);
  animation: fade-up 1s .2s ease both;
}
.hero__actions {
  position: relative; z-index: 2;
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
  animation: fade-up 1s .32s ease both;
}
.hero__scroll { position: absolute; left: 50%; bottom: 24px; z-index: 2; transform: translateX(-50%); }
.hero__scroll span {
  display: block; width: 1px; height: 44px;
  background: linear-gradient(to bottom, rgba(13,13,13,.45), rgba(13,13,13,0));
  animation: scroll-pulse 2.4s ease-in-out infinite;
}

@media (max-width: 899px) {
  /* 900px未満は横長バナーだとロゴが小さくなりすぎるため、縦組みに切り替える */
  .hero__stack { display: flex; }
}
@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: center; }
  .btn { width: min(290px, 84vw); justify-content: center; }
}

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes fade-up { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes scroll-pulse { 0%,100% { opacity: .2; transform: scaleY(.6); transform-origin: top; } 50% { opacity: 1; transform: scaleY(1); transform-origin: top; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 24px; font-size: 13.5px; letter-spacing: .08em; font-weight: 500;
  background: #fff; border: 1px solid var(--line-strong); border-radius: 2px;
  transition: background .25s, border-color .25s, color .25s, transform .25s, box-shadow .25s;
}
.btn .icon { width: 17px; height: 17px; fill: currentColor; flex: none; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(13,13,13,.10); }
.btn--yt:hover { background: var(--yt); border-color: var(--yt); color: #fff; }
.btn--x:hover  { background: #0d0d0d; border-color: #0d0d0d; color: #fff; }

/* ---------- Sections ---------- */
.section { padding-block: var(--section-y); border-bottom: 1px solid var(--line); }
.section--alt { background: var(--bg-alt); }
.section__label {
  font-family: var(--font-serif); font-size: 12px; letter-spacing: .34em;
  color: var(--text-dim); margin: 0 0 12px; text-transform: uppercase;
}
.section__title {
  font-size: clamp(22px, 5vw, 32px); margin: 0 0 clamp(22px, 4vw, 34px);
  padding-bottom: 18px; position: relative;
}
.section__title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 40px; height: 1px; background: var(--text); }
.section__lead { max-width: 60ch; color: var(--text-muted); margin-bottom: clamp(28px, 5vw, 44px); }

/* ---------- Facts ---------- */
.facts { border-top: 1px solid var(--line); }
.facts__item {
  display: grid; grid-template-columns: 180px 1fr; gap: 8px 24px;
  padding: 20px 0; border-bottom: 1px solid var(--line);
}
.facts__item dt { font-family: var(--font-serif); font-size: 14px; letter-spacing: .14em; color: var(--text-muted); }
.facts__item dd { font-size: 15px; }
.facts a { border-bottom: 1px solid var(--line-strong); transition: border-color .25s, color .25s; }
.facts a:hover { color: #000; border-bottom-color: #000; }
@media (max-width: 640px) {
  .facts__item { grid-template-columns: 1fr; gap: 4px; padding: 16px 0; }
  .facts__item dt { font-size: 12.5px; letter-spacing: .2em; }
}

/* ---------- 編集方針 ---------- */
.policy {
  margin-top: clamp(32px, 5vw, 48px); padding: clamp(24px, 4vw, 36px);
  background: #fff; border: 1px solid var(--line); border-left: 2px solid var(--text);
}
.policy__title { font-size: 16px; letter-spacing: .18em; margin: 0 0 16px; }
.policy p { color: var(--text-muted); font-size: 15px; }
.policy strong { color: var(--text); font-weight: 700; }

/* ---------- Profile ---------- */
.profile { display: grid; grid-template-columns: 300px 1fr; gap: clamp(28px, 5vw, 56px); align-items: start; }
.profile__figure { margin: 0; }
.profile__img {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: center 22%;
  background: var(--bg-alt); border: 1px solid var(--line);
}
.profile__role { font-size: 12px; letter-spacing: .28em; color: var(--text-dim); margin: 0 0 8px; }
.profile__name {
  font-size: clamp(24px, 5vw, 32px); letter-spacing: .12em; margin: 0 0 22px;
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px;
}
.profile__ruby { font-family: var(--font-sans); font-size: 12px; letter-spacing: .2em; color: var(--text-dim); font-weight: 400; }
.profile__body p { color: var(--text-muted); font-size: 15px; }
.profile__links { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 10px; }
.profile__links a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; font-size: 12.5px; letter-spacing: .06em;
  background: #fff; border: 1px solid var(--line-strong); border-radius: 2px;
  transition: background .25s, border-color .25s, color .25s, transform .25s;
}
.profile__links a .icon { width: 15px; height: 15px; fill: currentColor; flex: none; }
.profile__links a:hover { transform: translateY(-1px); }
.profile__links a:nth-child(1):hover { background: var(--yt); border-color: var(--yt); color: #fff; }
.profile__links a:nth-child(2):hover { background: #0d0d0d; border-color: #0d0d0d; color: #fff; }
@media (max-width: 720px) {
  .profile { grid-template-columns: 1fr; }
  .profile__figure { max-width: 240px; }
}

/* ---------- Channel cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.card {
  position: relative; display: flex; align-items: center; gap: 18px;
  padding: 26px 24px; background: #fff;
  border: 1px solid var(--line); border-radius: 2px;
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(13,13,13,.08); }
.card--yt:hover { border-color: rgba(255,0,0,.5); }
.card--x:hover  { border-color: #0d0d0d; }
.card__icon { flex: none; width: 34px; height: 34px; display: grid; place-items: center; }
.card__icon svg { width: 30px; height: 30px; fill: var(--text); transition: fill .3s; }
.card--yt:hover .card__icon svg { fill: var(--yt); }
.card__body { display: flex; flex-direction: column; gap: 3px; }
.card__title { font-family: var(--font-serif); font-size: 16px; letter-spacing: .1em; }
.card__handle { font-size: 12.5px; color: var(--text-muted); letter-spacing: .06em; }
.card__desc { font-size: 12.5px; color: var(--text-dim); margin-top: 4px; }
.card__arrow { position: absolute; top: 18px; right: 18px; font-size: 13px; color: var(--text-dim); transition: color .3s, transform .3s; }
.card:hover .card__arrow { color: var(--text); transform: translate(2px, -2px); }

/* ---------- Video embed component ---------- */
.video { margin-top: clamp(32px, 5vw, 48px); }
.video__title { font-size: 15px; letter-spacing: .16em; margin: 0 0 14px; color: var(--text-muted); }
.video__frame {
  position: relative; aspect-ratio: 16 / 9; width: 100%;
  background: var(--bg-alt); border: 1px solid var(--line); overflow: hidden;
}
.video__frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video__placeholder {
  position: absolute; inset: 0; display: grid; place-content: center; gap: 12px; justify-items: center;
  color: var(--text-dim); font-size: 13px; letter-spacing: .1em; text-align: center; padding: 20px;
}
.video__placeholder svg { width: 40px; height: 40px; fill: var(--line-strong); }

/* ---------- News ---------- */
.news { border-top: 1px solid var(--line); max-width: 720px; }
.news__item {
  display: grid; grid-template-columns: 180px 1fr; gap: 6px 24px;
  padding: 22px 0; border-bottom: 1px solid var(--line);
}
.news__date { font-family: var(--font-serif); font-size: 14px; letter-spacing: .14em; color: var(--text-muted); }
.news__text { margin: 0; font-size: 15px; }
@media (max-width: 640px) { .news__item { grid-template-columns: 1fr; gap: 4px; } }

.note { margin-top: 20px; font-size: 12.5px; color: var(--text-dim); }

/* ---------- Footer（黒。ロゴタイルと呼応させて全体を締める） ---------- */
.site-footer {
  padding-block: clamp(48px, 8vw, 76px) 36px;
  background: var(--bg-dark); color: var(--text-on-dark);
}
.disclaimer { padding: clamp(20px, 3vw, 28px); border: 1px solid #232323; background: #111; }
.disclaimer__title { font-size: 13px; letter-spacing: .2em; margin: 0 0 12px; color: #b6b6b6; }
.disclaimer p { margin: 0; font-size: 13px; line-height: 1.95; color: #b6b6b6; }

.site-footer__bottom {
  margin-top: 40px; padding-top: 28px; border-top: 1px solid #232323;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px;
}
.site-footer__brand { display: flex; align-items: center; gap: 11px; }
.site-footer__mark { width: 34px; height: 34px; border-radius: 2px; }
.site-footer__name { font-family: var(--font-serif); font-size: 15px; letter-spacing: .16em; }
.site-footer__nav { display: flex; gap: 22px; }
.site-footer__nav a { font-size: 12.5px; color: #b6b6b6; letter-spacing: .06em; transition: color .25s; }
.site-footer__nav a:hover { color: #fff; }
.copyright { margin: 0; font-size: 12px; letter-spacing: .12em; color: #7d7d7d; }
@media (max-width: 640px) { .site-footer__bottom { flex-direction: column; align-items: flex-start; } }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Legal page (privacy.html) ---------- */
.legal { padding: clamp(110px, 14vw, 150px) 0 clamp(56px, 8vw, 90px); }
.legal__meta { font-size: 12.5px; color: var(--text-dim); letter-spacing: .1em; margin-bottom: 36px; }
.legal h3 { font-size: 16px; letter-spacing: .14em; margin: 44px 0 14px; padding-left: 14px; border-left: 2px solid var(--text); }
.legal p, .legal li { color: var(--text-muted); font-size: 14.5px; }
.legal ul { margin: 0 0 1.2em; padding-left: 1.2em; }
.legal ul li { list-style: disc; margin-bottom: .4em; }
.legal a { border-bottom: 1px solid var(--line-strong); }
.legal a:hover { color: #000; border-bottom-color: #000; }
.back-link { display: inline-block; margin-top: 48px; font-size: 13px; letter-spacing: .1em; color: var(--text-muted); }
.back-link:hover { color: #000; }


/* ============================================================
   監視銘柄リスト
   ============================================================ */
.watchlist__meta {
  margin: -20px 0 clamp(24px, 4vw, 36px);
  font-size: 12.5px; letter-spacing: .12em; color: var(--text-dim);
}
.watchlist {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.watchlist__group { background: var(--bg); padding: 22px 22px 24px; }
.watchlist__cat {
  font-size: 12.5px; letter-spacing: .16em; color: var(--text-muted);
  margin: 0 0 14px; padding-bottom: 10px; border-bottom: 1px solid var(--line);
}
.watchlist__list { display: flex; flex-direction: column; gap: 9px; }
.watchlist__list li { display: flex; align-items: baseline; gap: 10px; }
.watchlist__code {
  flex: none; min-width: 52px;
  font-family: "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 12.5px; letter-spacing: .04em; color: var(--text);
  font-weight: 500;
}
.watchlist__name { font-size: 13.5px; color: var(--text-muted); letter-spacing: .02em; }

/* ============================================================
   分析アーカイブ
   ============================================================ */
.archive { background: var(--bg); border: 1px solid var(--line); }
.archive__head {
  padding: clamp(22px, 3.4vw, 30px) clamp(20px, 3.4vw, 34px);
  border-bottom: 1px solid var(--line);
}
.archive__title { font-size: clamp(17px, 3.4vw, 21px); letter-spacing: .1em; margin: 0 0 6px; }
.archive__range { margin: 0; font-size: 12.5px; letter-spacing: .1em; color: var(--text-dim); }

.timeline { padding: clamp(8px, 2vw, 16px) clamp(20px, 3.4vw, 34px) clamp(20px, 3vw, 30px); }

.entry {
  position: relative;
  display: grid; grid-template-columns: 148px 1fr; gap: 0 28px;
  padding: 26px 0 30px;
  border-bottom: 1px solid var(--line);
}
.entry:last-child { border-bottom: 0; padding-bottom: 8px; }

.entry__meta { position: relative; padding-left: 20px; }
/* 時系列を示す縦のライン＋点 */
.entry__meta::before {
  content: ""; position: absolute; left: 3px; top: 12px; bottom: -30px; width: 1px; background: var(--line);
}
.entry:last-child .entry__meta::before { display: none; }
.entry__meta::after {
  content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--text);
}
.entry__date {
  display: block; font-family: var(--font-serif); font-size: 14px;
  letter-spacing: .1em; line-height: 1.6;
}
.entry__time { font-size: 12px; letter-spacing: .1em; color: var(--text-dim); }

.entry__body p { margin: 0 0 .7em; font-size: 15px; line-height: 1.95; }
.entry__body p:last-of-type { margin-bottom: 0; }

/* 図版は高さを揃えて横並び。縦長のスマホ画面キャプチャでも巨大にならないようにする */
.entry__figs { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-start; }
.entry__fig { display: block; line-height: 0; transition: opacity .25s; }
.entry__fig:hover { opacity: .82; }
.entry__figs img {
  max-height: 420px; width: auto; max-width: 100%;
  border: 1px solid var(--line-strong); background: #0b0b0b;
}

@media (max-width: 720px) {
  .entry { grid-template-columns: 1fr; gap: 12px; padding: 22px 0 26px; }
  .entry__meta { display: flex; align-items: baseline; gap: 10px; padding-left: 18px; }
  .entry__meta::before { bottom: -26px; }
  .entry__date { display: inline; font-size: 13px; }
  .entry__figs img { max-height: 340px; }
  .entry__body p { font-size: 14.5px; }
}

/* ============================================================
   講義コンテンツ
   ============================================================ */
.lectures { display: flex; flex-direction: column; gap: 16px; }
.lecture__link {
  display: grid; grid-template-columns: minmax(0, 380px) 1fr; align-items: stretch; gap: 0;
  background: #fff; border: 1px solid var(--line); overflow: hidden;
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.lecture__link:hover { transform: translateY(-2px); border-color: var(--text); box-shadow: 0 10px 30px rgba(13,13,13,.08); }

.lecture__thumb {
  display: block; position: relative; overflow: hidden;
  background: var(--bg-alt); border-right: 1px solid var(--line);
}
.lecture__thumb img {
  width: 100%; height: 100%; object-fit: cover; object-position: left center;
  transition: transform .5s ease;
}
.lecture__link:hover .lecture__thumb img { transform: scale(1.03); }

/* 再生ボタンが沈まないように、画像の上へ薄い暗幕をかける */
.lecture__thumb::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: rgba(0,0,0,.16); transition: background .3s;
}
.lecture__link:hover .lecture__thumb::after { background: rgba(0,0,0,.30); }

.lecture__play {
  position: absolute; left: 50%; top: 50%; z-index: 2;
  transform: translate(-50%, -50%);
  width: clamp(48px, 6.5vw, 62px); height: clamp(48px, 6.5vw, 62px);
  display: grid; place-items: center; border-radius: 50%;
  background: rgba(255,255,255,.92);
  box-shadow: 0 6px 24px rgba(0,0,0,.3);
  transition: transform .3s ease, background .3s ease;
}
.lecture__play svg { width: 40%; height: 40%; fill: #0d0d0d; margin-left: 8%; }
.lecture__link:hover .lecture__play { transform: translate(-50%, -50%) scale(1.08); background: #fff; }

.lecture__body {
  display: flex; flex-direction: column; gap: 8px; min-width: 0;
  padding: clamp(22px, 3vw, 30px) clamp(20px, 3vw, 32px);
}
.lecture__no {
  font-family: var(--font-serif); font-size: 13px; letter-spacing: .2em;
  color: var(--text-dim); line-height: 1;
}
.lecture__title { font-family: var(--font-serif); font-size: clamp(16px, 3vw, 20px); letter-spacing: .06em; line-height: 1.6; }
.lecture__desc { font-size: 13px; color: var(--text-muted); line-height: 1.85; }
.lecture__meta { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; letter-spacing: .1em; color: var(--text-dim); }
.lecture__dur::before { content: "／ "; }
.lecture__cta {
  margin-top: 6px; font-size: 12.5px; letter-spacing: .1em; color: var(--text-muted);
  transition: color .3s;
}
.lecture__link:hover .lecture__cta { color: var(--text); }

@media (max-width: 760px) {
  /* モバイルはアイキャッチを上に */
  .lecture__link { grid-template-columns: 1fr; }
  /* 縦積み時はアイキャッチ全体が見えるように、画像の縦横比をそのまま使う */
  .lecture__thumb { border-right: 0; border-bottom: 1px solid var(--line); aspect-ratio: 16 / 9; }
  .lecture__dur::before { content: ""; }
}

/* ============================================================
   「続きを読む」（JSなしで開閉する <details>）
   ============================================================ */
.more { margin-top: 4px; }
.more > summary { list-style: none; }
.more > summary::-webkit-details-marker { display: none; }
.more__btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  margin: 0 clamp(20px, 3.4vw, 34px) clamp(20px, 3vw, 28px);
  padding: 15px 20px; cursor: pointer;
  font-size: 13px; letter-spacing: .12em; color: var(--text-muted);
  background: var(--bg); border: 1px solid var(--line-strong);
  transition: background .25s, color .25s, border-color .25s;
}
.more__btn:hover { background: #0d0d0d; border-color: #0d0d0d; color: #fff; }
.more__btn::after {
  content: "▾"; font-size: 11px; line-height: 1; transition: transform .3s;
}
.more[open] .more__btn::after { transform: rotate(180deg); }
.more__close { display: none; }
.more[open] .more__open { display: none; }
.more[open] .more__close { display: inline; }
/* 開いた側のリストは上の余白を詰める */
.timeline--rest { padding-top: 0; }
.timeline--head { padding-bottom: 8px; }
.timeline--head .entry:last-child { border-bottom: 1px solid var(--line); }

/* ---------- アクセシビリティ補正 ---------- */

/* 暗い背景(フッター)ではフォーカスリングを明色にする。
   既定の #0d0d0d はフッター背景 #0b0b0b と同化して見えなくなるため。 */
.site-footer :focus-visible { outline-color: var(--text-on-dark); }

/* ヘッダーのブランドリンクは最上部で opacity:0 だが、
   キーボードでフォーカスした時は必ず見えるようにする。 */
.site-header__brand:focus-visible { opacity: 1; transform: none; }

/* JavaScriptが無効な環境では、スクロール連動で出す要素を最初から見せる。
   ヘッダーが透明・ロゴ非表示のまま本文に重なるのを防ぐ。 */
@media (scripting: none) {
  .site-header { background: rgba(255,255,255,.92); border-bottom-color: var(--line); }
  .site-header__brand { opacity: 1; transform: none; }
}