/* ===================================================
   人・場・事業を育てるプロデューサー — スタイルシート
   カラー: アイボリー / 濃紺 / 墨色 / 真鍮（ゴールド）
   フォント: 見出し=Shippori Mincho / 本文=Noto Sans JP
=================================================== */

:root {
  /* ベースカラー（暖かみのあるアイボリー系） */
  --color-ivory: oklch(97% 0.014 85);
  --color-cream: oklch(93% 0.02 78);
  /* 濃紺・墨色（テキスト・ダークセクション） */
  --color-navy: oklch(24% 0.05 262);
  --color-sumi: oklch(17% 0.012 260);
  /* 真鍮（アクセント） */
  --color-brass: oklch(64% 0.09 75);
  --color-brass-dim: oklch(64% 0.09 75 / 0.5);

  --color-text: var(--color-sumi);
  --color-text-soft: oklch(38% 0.02 260);
  --color-border: oklch(80% 0.02 85);

  --font-heading: "Shippori Mincho", serif;
  --font-body: "Noto Sans JP", sans-serif;

  --max-width: 1120px;
  --space-section: clamp(80px, 12vw, 160px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-ivory);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  /* 日本語の不自然な改行を防ぐ */
  line-break: strict;
  word-break: normal;
  overflow-wrap: break-word;
}

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

a {
  color: var(--color-navy);
  text-decoration: none;
}
a:hover { color: var(--color-brass); }

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  margin: 0;
  color: var(--color-sumi);
}

ul, ol { margin: 0; padding: 0; }

/* スキップリンク（アクセシビリティ） */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-navy);
  color: var(--color-ivory);
  padding: 8px 16px;
  z-index: 200;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ===== ヘッダー / ナビ ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(20px, 5vw, 56px);
  mix-blend-mode: normal;
}

.logo {
  font-family: var(--font-heading);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--color-ivory);
}

.nav ul {
  display: flex;
  gap: clamp(14px, 2vw, 28px);
  list-style: none;
}
.nav a {
  color: var(--color-ivory);
  font-size: 13px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.nav a:hover { color: var(--color-brass); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 1.5px;
  background: var(--color-ivory);
  display: block;
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 0;
    background: var(--color-navy);
    padding: 90px 32px 32px;
    transform: translateY(-100%);
    transition: transform 0.4s ease;
  }
  .nav.is-open { transform: translateY(0); }
  .nav ul { flex-direction: column; gap: 20px; }
  .nav a { font-size: 16px; }
}

/* ===== ファーストビュー ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--color-ivory);
}
.hero__image {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.55);
}
.hero__inner {
  padding: 0 clamp(20px, 6vw, 72px) clamp(60px, 10vw, 120px);
  max-width: 900px;
}
.hero__title-sub {
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--color-brass);
  margin-bottom: 20px;
}
.hero__title {
  font-size: clamp(30px, 5.2vw, 56px);
  line-height: 1.65;
  letter-spacing: 0.01em;
  margin-bottom: 24px;
}
.hero__lead {
  font-size: clamp(14px, 1.6vw, 17px);
  color: oklch(92% 0.01 85);
  margin-bottom: 40px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  right: 32px; bottom: 32px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-ivory);
  writing-mode: vertical-rl;
  opacity: 0.7;
}

/* ===== ボタン ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 34px;
  font-size: 13px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  border: 1px solid var(--color-brass);
  transition: background 0.3s, color 0.3s;
}
.btn--primary {
  background: var(--color-brass);
  color: var(--color-sumi);
}
.btn--primary:hover { background: var(--color-ivory); color: var(--color-sumi); }
.btn--ghost {
  color: var(--color-ivory);
  border-color: var(--color-ivory);
}
.btn--ghost:hover { border-color: var(--color-brass); color: var(--color-brass); }

/* ===== 共通セクション ===== */
.section {
  padding: var(--space-section) clamp(20px, 6vw, 72px);
  max-width: var(--max-width);
  margin: 0 auto;
}
.section--narrow { max-width: 860px; }
.section--dark {
  max-width: none;
  background: var(--color-navy);
  color: oklch(92% 0.01 85);
}
.section--dark .section__title,
.section--dark h3 { color: var(--color-ivory); }
.section--dark .career-item__num { color: var(--color-brass); }

.section__eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--color-brass);
  margin-bottom: 18px;
  text-transform: uppercase;
  text-align: center;
}
.section__title {
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.6;
  margin: 0 auto 44px;
  max-width: 720px;
  text-align: center;
}
.section__text p { margin: 0 0 1.4em; color: var(--color-text-soft); }
.section__text p:last-child { margin-bottom: 0; }
.section--dark .section__text p { color: oklch(88% 0.01 85); }
.section__text--center { max-width: 640px; margin: 0 auto; text-align: center; }
.section__emphasis {
  font-family: var(--font-heading);
  font-size: clamp(20px, 2.4vw, 26px);
  color: var(--color-sumi);
  margin-top: 32px !important;
}

/* 分割レイアウト（画像 + テキスト：2カレーム） */
.section--split {
  max-width: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 0;
}
.section--split .section__eyebrow,
.section--split .section__title { text-align: left; margin: 0 0 44px; }
.section--split .section__media img {
  width: 100%; height: 100%; object-fit: cover;
  aspect-ratio: 4/5;
}
.section--split .section__body { padding: 40px clamp(24px, 6vw, 80px); }
.section--reverse { direction: rtl; }
.section--reverse .section__body { direction: ltr; }

@media (max-width: 860px) {
  .section--split { grid-template-columns: 1fr; }
  .section--split .section__media img { aspect-ratio: 16/10; }
  .section--reverse { direction: ltr; }
}

/* ===== キャリア（テキスト主体・可読性重視） ===== */
.career-list { list-style: none; display: flex; flex-direction: column; gap: 64px; max-width: 720px; margin: 0 auto; }
.career-item {
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
}
.career-item__num {
  display: block;
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--color-brass);
  margin-bottom: 10px;
}
.career-item__title { font-size: 21px; margin-bottom: 18px; line-height: 1.5; text-align: center; }
.career-item__text p {
  margin: 0 0 1.2em;
  color: var(--color-text-soft);
  font-size: 16px;
  line-height: 2;
}
.career-item__text p:last-child { margin-bottom: 0; }

/* ===== 今できること / 強み ===== */
.skill-grid, .strength-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  justify-content: center;
}
.skill-card h3, .strength-card h3 { text-align: center; }
.skill-card, .strength-card {
  padding: 32px 28px;
  border: 1px solid var(--color-border);
  background: var(--color-cream);
}
.section--dark .strength-card {
  background: oklch(28% 0.05 262);
  border-color: oklch(35% 0.04 262);
}
.skill-card h3 {
  font-size: 17px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-brass-dim);
}
.skill-card ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.skill-card li { font-size: 14px; color: var(--color-text-soft); }

.strength-card__num {
  display: block;
  font-family: var(--font-heading);
  color: var(--color-brass);
  font-size: 24px;
  margin-bottom: 14px;
}
.strength-card h3 { font-size: 17px; margin-bottom: 12px; }
.strength-card p { font-size: 14px; color: oklch(88% 0.01 85); margin: 0; }

/* ===== パートナー ===== */
.partner-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 24px auto;
  padding-left: 0;
  max-width: 480px;
  text-align: left;
}
.partner-list li {
  padding-left: 24px;
  position: relative;
  color: var(--color-text-soft);
}
.partner-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.6em;
  width: 8px; height: 1px;
  background: var(--color-brass);
}

/* ===== 連絡先 ===== */
.section--contact { text-align: center; }
.contact-block { max-width: 480px; margin: 0 auto; }
.contact-name {
  font-family: var(--font-heading);
  font-size: 22px;
  margin-bottom: 20px;
}
.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
}
.contact-list a { font-size: 15px; }
.contact-block .btn { margin: 6px; }

/* ===== フッター ===== */
.site-footer {
  text-align: center;
  padding: 32px;
  font-size: 12px;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-border);
}

/* ===== スクロールフェードイン ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}