/* ============================================================
   mui.works — common.css
   全ページ共通スタイル
   ============================================================ */

/* ── CSS変数 ── */
:root {
  --bg:  rgb(14,18,30);
  --bg1: rgb(20,25,42);
  --bg2: rgb(26,32,52);
  --border:  rgba(255,255,255,.1);
  --border2: rgba(255,255,255,.28);
  --text:  #ffffff;
  --text2: rgba(255,255,255,.7);
  --text3: rgba(255,255,255,.35);
  --accent:  #4d9ef7;
  --accent2: #ffffff;
  --ok:   #4ade80;
  --wait: #fbbf24;
  --ng:   #f87171;
  --jp: 'Shippori Mincho', serif;
  --en: 'Cormorant Garamond', serif;
  --ui: 'Noto Sans JP', sans-serif;
}

/* ── リセット ── */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  background:var(--bg);
  color:var(--text);
  font-family:var(--ui);
  font-weight:300;
  line-height:1.85;
  overflow-x:hidden;
}

/* ── プログレスバー ── */
#pb {
  position:fixed; top:0; left:0;
  height:1px; width:0;
  background:linear-gradient(90deg,var(--accent),#a5b0ff);
  z-index:1000;
}

/* ── ナビゲーション ── */
nav#nav {
  position:fixed; top:0; left:0; right:0;
  z-index:900; height:64px; padding:0 56px;
  display:flex; align-items:center; justify-content:space-between;
  transition:background .4s, border-color .4s;
}
nav#nav.sc {
  background:rgba(14,18,30,.93);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.nav-logo {
  font-family:var(--en); font-size:1.2rem; letter-spacing:.1em;
  color:var(--text); text-decoration:none;
  display:flex; align-items:center; gap:8px;
}
.logo-dot { width:5px; height:5px; border-radius:50%; background:var(--accent); }
.nav-right { display:flex; align-items:center; gap:28px; }
#nav .nav-links { display:flex; gap:32px; list-style:none; }
#nav .nav-links a {
  font-size:.72rem; letter-spacing:.16em; text-transform:uppercase;
  color:var(--text3); text-decoration:none; transition:color .2s;
}
#nav .nav-links a:hover,
#nav .nav-links a.active { color:var(--text2); }
#nav .nav-cta {
  font-size:.71rem; letter-spacing:.14em; text-transform:uppercase;
  color:var(--text); padding:9px 22px;
  border:1px solid var(--border2); text-decoration:none; transition:all .3s;
}
#nav .nav-cta:hover { background:rgba(77,158,247,.1); border-color:var(--accent); }
@media(max-width:900px) {
  nav#nav { padding:0 20px; }
  .nav-right { gap:16px; }
  #nav .nav-links { display:none; }
}

/* ── フッター ── */
footer { background:var(--bg); border-top:1px solid var(--border); padding:56px 56px 32px; }
.ft-in { max-width:1160px; margin:0 auto; }
.ft-top {
  display:grid; grid-template-columns:1.4fr 1fr 1fr;
  gap:48px; padding-bottom:40px; border-bottom:1px solid var(--border);
}
.ft-logo {
  font-family:var(--en); font-size:1.15rem; letter-spacing:.1em;
  color:var(--text); margin-bottom:10px;
  display:flex; align-items:center; gap:7px;
}
.ft-desc { font-size:.74rem; color:var(--text3); line-height:1.9; }
.ft-col-h { font-size:.61rem; letter-spacing:.2em; text-transform:uppercase; color:var(--text3); margin-bottom:16px; }
.ft-links { list-style:none; display:flex; flex-direction:column; gap:9px; }
.ft-links a {
  font-size:.75rem; color:var(--text3); text-decoration:none;
  display:flex; align-items:center; gap:9px; transition:color .25s;
}
.ft-links a::before {
  content:''; width:10px; height:1px;
  background:var(--accent); opacity:.22; transition:opacity .25s;
}
.ft-links a:hover { color:var(--text2); }
.ft-links a:hover::before { opacity:.65; }
.ft-bot {
  margin-top:24px; display:flex;
  justify-content:space-between; align-items:center;
  flex-wrap:wrap; gap:12px;
}
.ft-copy { font-size:.67rem; color:var(--text3); }
.ft-pol { display:flex; gap:20px; }
.ft-pol a { font-size:.67rem; color:var(--text3); text-decoration:none; transition:color .25s; }
.ft-pol a:hover { color:var(--text2); }
@media(max-width:768px) {
  footer { padding:44px 20px 24px; }
  .ft-top { grid-template-columns:1fr; gap:28px; }
  .ft-bot { flex-direction:column; text-align:center; }
}

/* ── ページヒーロー（サービス・法的ページ共通）── */
.page-hero { padding:160px 56px 80px; position:relative; overflow:hidden; }
.page-hero-grid { position:absolute; inset:0; pointer-events:none; z-index:1; background:#091525; }
.page-hero-glow {
  position:absolute; inset:0; pointer-events:none; z-index:2;
  background:
    radial-gradient(ellipse 120% 80% at 10% 30%, rgba(18,90,180,.65) 0%, transparent 65%),
    radial-gradient(ellipse 90% 90% at 85% 20%, rgba(10,60,150,.5) 0%, transparent 60%),
    linear-gradient(to bottom, transparent 55%, rgb(14,18,30) 100%);
}
.page-hero-noise {
  position:absolute; inset:0; pointer-events:none; z-index:3;
  opacity:.55;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.35' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:320px 320px;
  mix-blend-mode:soft-light;
}
.page-hero-inner { max-width:1160px; margin:0 auto; position:relative; z-index:4; }
.page-kicker { display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.k-line { width:22px; height:1px; background:var(--accent); }
.k-text {
  font-family:var(--en); font-style:italic;
  font-size:.72rem; letter-spacing:.24em;
  color:var(--accent); text-transform:uppercase;
}
.page-h1 {
  font-family:var(--jp);
  font-size:clamp(2.2rem,5vw,4.5rem);
  font-weight:700; line-height:1.2; letter-spacing:-.01em; color:var(--text);
}
.page-hero-lead {
  margin-top:20px;
  font-size:clamp(.85rem,1.3vw,.95rem);
  color:var(--text3); line-height:2; max-width:520px;
}
.hero-breadcrumb {
  margin-top:28px; display:flex; align-items:center;
  gap:8px; font-size:.68rem; letter-spacing:.1em; color:var(--text3);
}
.hero-breadcrumb a { color:var(--text3); text-decoration:none; transition:color .2s; }
.hero-breadcrumb a:hover { color:var(--text2); }
.hero-breadcrumb span { opacity:.4; }
@media(max-width:768px) { .page-hero { padding:120px 20px 60px; } }

/* ── セクションユーティリティ ── */
.sec { padding:88px 56px; }
.sec-in { max-width:1160px; margin:0 auto; }
.sec-kicker { display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.sec-h2 {
  font-family:var(--jp); font-size:clamp(1.5rem,3vw,2.2rem);
  font-weight:700; line-height:1.3; color:var(--text); margin-bottom:32px;
}
.sec-p { font-size:.86rem; color:var(--text2); line-height:2; max-width:640px; }
@media(max-width:768px) { .sec { padding:60px 20px; } }

/* ── キッカー（共通）── */
.kicker { display:flex; align-items:center; gap:12px; margin-bottom:16px; }

/* ── ボタン ── */
.btn-fill {
  padding:12px 30px; background:var(--accent); color:var(--bg);
  font-size:.75rem; letter-spacing:.14em; text-transform:uppercase; font-weight:500;
  border:1px solid var(--accent); text-decoration:none; transition:all .3s;
}
.btn-fill:hover { background:transparent; color:var(--accent2); border-color:var(--accent2); }
.btn-out {
  padding:11px 30px; background:transparent;
  color:rgba(255,255,255,.65); font-size:.75rem;
  letter-spacing:.14em; text-transform:uppercase;
  border:1px solid rgba(255,255,255,.2); text-decoration:none; transition:all .3s;
}
.btn-out:hover { border-color:var(--border2); color:var(--text2); }
.btn-accent {
  padding:13px 36px; background:var(--accent); color:var(--bg);
  font-size:.76rem; letter-spacing:.14em; text-transform:uppercase; font-weight:500;
  text-decoration:none; border:1px solid var(--accent); transition:all .3s;
  display:block; text-align:center; white-space:nowrap;
}
.btn-accent:hover { background:transparent; color:var(--accent2); border-color:var(--accent2); }
.btn-ghost-cta {
  padding:13px 36px; background:transparent;
  color:rgba(255,255,255,.6); font-size:.76rem;
  letter-spacing:.14em; text-transform:uppercase;
  border:1px solid rgba(255,255,255,.15);
  text-decoration:none; transition:all .3s;
  display:block; text-align:center; white-space:nowrap;
}
.btn-ghost-cta:hover { border-color:var(--border2); color:var(--text2); }

/* ── CTA セクション（サービスページ共通）── */
.cta-sec { background:var(--bg1); border-top:1px solid var(--border); padding:100px 56px; }
.cta-inner {
  max-width:1160px; margin:0 auto;
  display:grid; grid-template-columns:1fr auto;
  gap:80px; align-items:center;
}
.cta-h2 {
  font-family:var(--jp); font-size:clamp(1.5rem,3vw,2.2rem);
  font-weight:700; color:var(--text); margin-bottom:12px; line-height:1.3;
}
.cta-p { font-size:.84rem; color:var(--text2); line-height:2; }
.cta-btns { display:flex; flex-direction:column; gap:10px; width:220px; }
.cta-btns .btn-accent,
.cta-btns .btn-ghost-cta { width:100%; box-sizing:border-box; }
@media(max-width:768px) {
  .cta-sec { padding:72px 20px; }
  .cta-inner { grid-template-columns:1fr; gap:36px; }
  .cta-btns { flex-direction:column; width:100%; max-width:320px; }
}

/* ── 戻るナビ ── */
.back-nav { padding:40px 56px 0; max-width:1160px; margin:0 auto; }
.back-link {
  display:inline-flex; align-items:center; gap:10px;
  font-size:.72rem; letter-spacing:.12em; text-transform:uppercase;
  color:var(--text3); text-decoration:none; transition:color .25s;
}
.back-link::before { content:''; width:20px; height:1px; background:currentColor; transition:width .3s; }
.back-link:hover { color:var(--text2); }
.back-link:hover::before { width:32px; }
@media(max-width:768px) { .back-nav { padding:32px 20px 0; } }