/*全ページに適応するcssを書く*/

/*リセットCSS*/
*,*::before,*::after{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root{
/*色変数の定義*/
--bg:#0a0a0a;
--bg2:#111111;
--accent:#8b0000;
--accent2:#c0392b;
--text:#d4d0cb;
--text2:#7a7672;
--divider:#b30933d8;

/*フォント優先順位*/
--font-en:   'IM Fell English', Georgia, serif;
--font-ja:   'Noto Serif JP', serif;
}

html {
  scroll-behavior: smooth;/*移動を滑らかにする。あるいはauto*/
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-ja);/*日本語表示にする*/
  font-weight: 300;/*太さ100-900*/
  font-size: 14px;
  line-height: 1.9;/*行間*/
  min-height: 100vh;/*bodyの最小高さ100%*/

  padding-bottom: 38px; /*フッダー分*/
}

/* --- Header --- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 36px;
  background-color: var(--bg);
  border-bottom: 1px solid var(--divider);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-text {
  font-family: var(--font-en);
  font-size: 22px;
  letter-spacing: 0.12em;
  color: #fff;
  /* ロゴ画像がある場合はこのdivを非表示 */
}

.logo-area img {
  height: 50px;
  width: auto;
}

.site-nav {
  display: flex;
  gap: 36px;/*要素と要素の間*/
}

.nav-link {
  font-family: var(--font-en);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--text);
  text-decoration: none;
  position: relative;
  transition: color 0.25s;

  /*ロゴの下線を抜く*/
    text-decoration: none;
  color: inherit;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent2);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: #fff;
}

.nav-link:hover::after {
  width: 100%;
}

/* --- Hero --- */
.hero {
  width: 100%;
  max-height: 480px;
  overflow: hidden;
  position: relative;
}

.hero-image-wrap {
  position: relative;
  width: 100%;
}

.hero-img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  object-position: center top;
  display: block;
  filter: brightness(0.88) contrast(1.05);
}

/* 画像がない場合のフォールバック */
.hero-img[src="hero.jpg"]:not([complete]),
.hero-img[src="hero.jpg"][naturalWidth="0"] {
  display: none;
}

.hero-image-wrap:has(.hero-img[src="hero.jpg"]:not([complete])) {
  min-height: 320px;
  background: linear-gradient(180deg, #1a0a0a 0%, #0a0a0a 100%);
}

.hero-signature {
  position: absolute;
  bottom: 20px;
  right: 28px;
  font-family: var(--font-en);
  font-style: normal;
  font-size: 22px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
  text-shadow: 0 1px 8px rgba(0,0,0,0.8);
  pointer-events: none;
}

/* --- Main grid --- */
.main-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

/* --- Shared section styles --- */
.section-title {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-align: center;
  color: #fff;
  margin-bottom: 10px;
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--divider);
  margin: 10px 0;
}

/* --- Left column --- */
.left-col {
  padding-right: 32px;
}

/* information */
.info-section {
  margin-bottom: 32px;
}

.info-list {
  list-style: none;
  text-align: center;
  padding: 8px 0;
}

.info-list li {
  padding: 3px 0;
  font-size: 13.5px;
  color: var(--text);
}

.info-date {
  font-family: var(--font-en);
  font-size: 12.5px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-right: 10px;
}

/* about */
.about-section {
  margin-bottom: 32px;
}

.about-text {
  text-align: center;
  padding: 10px 0;
  line-height: 2.1;
}

.about-text p {
  font-size: 13.5px;
}

/* char left */
.char-left {
  margin-top: 20px;
}

.char-img {
  max-width: 140px;
  width: 100%;
  height: auto;
  display: block;
}

/* --- Right column --- */
.right-col {
  padding-left: 16px;
}

.circle-section {
  text-align: center;
}

.circle-name {
  font-family: var(--font-ja);
  font-size: 15px;
  letter-spacing: 0.12em;
  color: var(--text);
  margin: 10px 0 20px;
}

.char-right {
  display: flex;
  justify-content: center;
  margin-top: 12px;
}

.char-right .char-img {
  max-width: 160px;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .site-header {
    padding: 14px 20px;
  }

  .site-nav {
    gap: 20px;
  }

  .nav-link {
    font-size: 15px;
  }

  .main-content {
    grid-template-columns: 1fr;
    padding: 28px 16px 48px;
  }

  .left-col {
    padding-right: 0;
  }

  .right-col {
    padding-left: 0;
    margin-top: 24px;
  }

  .hero {
    max-height: 300px;
  }

  .hero-img {
    max-height: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-link::after {
    transition: none;
  }
}


/*フッダー*/
/* ===========================
   フッターナビ
   =========================== */

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  border-top: 2px solid var(--accent);
  padding: 10px 0 20px;
  margin-top: 40px;

/*下部に固定*/
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--bg);
  z-index: 100;

}



.footer-link {
  display: flex;
  align-items: center;
  gap: 0;
  font-family: var(--font-ja);
  font-size: 12px;/*文字サイズ*/
  font-weight: 400;
  letter-spacing: 0.0em;/*0.1➤0.0*/
  color: #fff;
  text-decoration: none;
  transition: color 0.25s;
  padding: 0 0px;
}

.footer-link:hover {
  color: var(--accent2);
}

.footer-line {/*挟みこませる*/
  display: block;
  width: 32px;/*短く*/
  height: 1px;
  background: var(--accent);
  flex-shrink: 0;
}