:root {
  --navy:      #0d1c2e;
  --gold:      #b89a5a;
  --cream:     #faf8f4;
  --cream-2:   #f3f0ea;
  --text:      #1c1c1c;
  --muted:     #7a7469;
  --border:    #e0dbd2;
  --white:     #ffffff;
  --serif:     'Noto Serif JP', 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  --sans:      'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  --ease:      cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* スキップリンク */
.skip-link {
  position: absolute; top: -100%; left: 1rem;
  padding: .35rem .9rem; background: var(--navy); color: #fff;
  border-radius: 4px; font-size: .8rem; z-index: 1000;
}
.skip-link:focus { top: .75rem; }

/* ==============================
   ヘッダ
   ============================== */
.site-header {
  background: var(--navy);
  position: sticky; top: 0; z-index: 100;
}
.header-inner {
  max-width: 1080px; margin: 0 auto;
  padding: 0 2rem; height: 60px;
  display: flex; align-items: center; justify-content: space-between;
}
.site-logo {
  font-family: var(--serif);
  font-size: .85rem; font-weight: 400;
  letter-spacing: .15em; color: rgba(255,255,255,.75);
}
.site-nav { display: flex; gap: .1rem; }
.nav-link {
  padding: .4rem .8rem; border-radius: 4px;
  font-size: .78rem; letter-spacing: .05em;
  color: rgba(255,255,255,.45);
  transition: color .2s var(--ease);
}
.nav-link:hover, .nav-link:focus-visible { color: rgba(255,255,255,.9); }
.nav-toggle {
  display: none; background: none;
  border: 1px solid rgba(255,255,255,.25); color: #fff;
  border-radius: 4px; padding: .35rem .65rem;
  cursor: pointer; font-size: 1rem; line-height: 1;
}
@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--navy); flex-direction: column;
    padding: .5rem 1.5rem 1rem; gap: 0;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .site-nav.is-open { display: flex; }
  .nav-link { padding: .7rem .5rem; }
  .header-inner { padding: 0 1.25rem; }
}

/* ==============================
   緊急バナー
   ============================== */
.emergency-banner {
  background: #6b1a1a; border-bottom: 2px solid #c0392b;
  padding: .7rem 1.5rem; display: flex; align-items: center;
  gap: .75rem; color: #fff; font-weight: 500; font-size: .9rem;
}
.emergency-banner[hidden] { display: none; }

/* ==============================
   ヒーロー
   ============================== */
.hero {
  background: var(--navy);
  padding: 5.5rem 2rem 5rem;
  text-align: center;
}
.hero-eyebrow {
  font-family: var(--serif);
  font-size: .72rem; font-weight: 300;
  letter-spacing: .28em; color: var(--gold);
  margin-bottom: 1.5rem; display: block;
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 300; letter-spacing: .1em;
  color: #fff; line-height: 1.4;
  margin-bottom: 1.5rem;
}
.hero-rule {
  width: 32px; height: 1px;
  background: var(--gold); opacity: .7;
  margin: 0 auto 1.5rem;
}
.hero-sub {
  font-size: .85rem; letter-spacing: .08em;
  color: rgba(255,255,255,.4);
}
@media (max-width: 480px) {
  .hero { padding: 3.5rem 1.25rem 3.5rem; }
}

/* ==============================
   メインコンテンツ
   ============================== */
.main-content {
  max-width: 780px; margin: 0 auto;
  padding: 4rem 2rem 5rem;
  display: flex; flex-direction: column; gap: 4rem;
}
@media (max-width: 480px) {
  .main-content { padding: 2.5rem 1.25rem 4rem; gap: 3rem; }
}

/* ==============================
   凡例
   ============================== */
.legend {
  display: flex; flex-wrap: wrap; gap: .6rem;
  justify-content: flex-end; font-size: .72rem; color: var(--muted);
}
.legend-item { display: flex; align-items: center; gap: .35rem; }

/* ==============================
   セクション
   ============================== */
.link-section { display: flex; flex-direction: column; gap: 1.25rem; }

.section-header {
  display: flex; align-items: baseline; gap: .75rem; flex-wrap: wrap;
}
.section-title {
  font-family: var(--serif);
  font-size: 1.15rem; font-weight: 400;
  letter-spacing: .1em; color: var(--navy);
}
.section-divider {
  flex: 1; height: 1px; background: var(--border); min-width: 20px;
}
.section-note {
  font-size: .75rem; color: var(--muted); letter-spacing: .03em;
}

/* tier バッジ */
.tier-badge {
  font-size: .65rem; letter-spacing: .1em; font-weight: 500;
  padding: .15rem .65rem;
  border: 1px solid rgba(13,28,46,.25);
  border-radius: 99px; flex-shrink: 0;
  color: var(--navy); background: transparent;
}
.tier-badge--public,
.tier-badge--auth,
.tier-badge--contact { color: var(--navy); background: transparent; }

/* ==============================
   リンクリスト
   ============================== */
.link-list {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--border);
}

.link-row {
  display: flex; align-items: center; gap: 1.1rem;
  padding: 1rem .25rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  transition: background .18s var(--ease), padding-left .18s var(--ease);
  position: relative;
  -webkit-tap-highlight-color: transparent;
}
.link-row:hover, .link-row:focus-visible {
  background: var(--white);
  padding-left: .75rem;
}
.link-row:focus-visible { outline: 2px solid var(--navy); outline-offset: -2px; }

.row-icon {
  width: 36px; height: 36px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
}
.row-icon .ti { font-size: 20px; }

.row-label {
  flex: 1;
  font-size: .9rem; font-weight: 500; letter-spacing: .02em;
}
.row-arrow {
  color: var(--border);
  font-size: 14px;
  transition: color .18s var(--ease), transform .18s var(--ease);
}
.link-row:hover .row-arrow {
  color: var(--gold); transform: translateX(3px);
}

@media (hover: none) {
  .link-row:active { background: var(--cream-2); }
  .link-row:hover { background: transparent; padding-left: .25rem; }
  .link-row:hover .row-arrow { color: var(--border); transform: none; }
}

/* ==============================
   フッタ
   ============================== */
.site-footer {
  background: var(--navy);
  border-top: 1px solid rgba(184,154,90,.15);
  text-align: center;
  padding: 2.5rem 1.5rem;
  font-size: .75rem; letter-spacing: .08em;
  line-height: 2.2;
}
.footer-logo {
  font-family: var(--serif);
  font-weight: 300; letter-spacing: .18em;
  color: rgba(255,255,255,.55);
  margin-bottom: .1rem;
}
.footer-copy { color: rgba(255,255,255,.25); }

/* ==============================
   フォーカス・ユーティリティ
   ============================== */
:focus-visible { outline: 2px solid var(--navy); outline-offset: 2px; }
:focus:not(:focus-visible) { outline: none; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}