/* ===================================================================
   Torel Forge Corp. — 共通スタイル（全ページ共通）
   ページ固有のスタイルは各HTMLの <style> に追記する
   =================================================================== */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --black:#030810;
  --navy:#050d1a;
  --green:#00ff88;
  --blue:#00c8ff;
  --glow-green:rgba(0,255,136,0.15);
  --glow-blue:rgba(0,200,255,0.15);
  --text:#e8f4ff;
  --muted:#93b6d0;
}
html{
  scroll-behavior:smooth;
  overflow-x:hidden;
}
body{
  background:var(--black);
  color:var(--text);
  font-family:'Noto Sans JP',sans-serif;
  font-weight:300;
  line-break:strict;   /* 「ィ」「ッ」などの小さい文字や長音を行頭に置かない */
}

/* CANVAS BG */
#bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;opacity:0.4}

/* SCAN LINE */
.scanline{
  pointer-events:none;
  position:fixed;top:0;left:0;width:100%;height:100%;z-index:200;
  background:repeating-linear-gradient(
    0deg,
    transparent,transparent 2px,
    rgba(0,0,0,0.03) 2px,rgba(0,0,0,0.03) 4px
  );
}

/* GRID OVERLAY */
.grid-overlay{
  pointer-events:none;
  position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;
  background-image:
    linear-gradient(rgba(0,200,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,200,255,0.03) 1px,transparent 1px);
  background-size:60px 60px;
}

@keyframes fadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}

/* ================= NAV ================= */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;justify-content:space-between;align-items:center;
  padding:1.2rem 3rem;
  border-bottom:1px solid rgba(0,200,255,0.1);
  background:rgba(3,8,16,0.8);
  backdrop-filter:blur(12px);
}
.nav-logo{
  font-family:'Rajdhani',sans-serif;
  font-size:1.4rem;font-weight:700;
  letter-spacing:0.15em;
  color:var(--text);
  text-decoration:none;
}
.nav-logo span{color:var(--green)}
@media(max-width:520px){
  .nav-logo{font-size:1.1rem;letter-spacing:0.08em}
}
.nav-links{display:flex;gap:2rem}
.nav-links a{
  color:var(--muted);font-size:0.8rem;
  letter-spacing:0.12em;text-decoration:none;
  font-family:'Share Tech Mono',monospace;
  transition:color 0.3s;
}
.nav-links a:hover,.nav-links a.active{color:var(--blue)}

/* ハンバーガーボタン（モバイルのみ表示） */
.nav-hamburger{
  display:none;
  flex-direction:column;gap:5px;
  cursor:pointer;padding:4px;
  background:none;border:none;
}
.nav-hamburger span{
  display:block;width:24px;height:2px;
  background:var(--blue);
  transition:all 0.3s;
}
.nav-hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-hamburger.open span:nth-child(2){opacity:0}
.nav-hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* モバイルメニュー */
.nav-mobile{
  display:none;
  position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(3,8,16,0.97);
  z-index:99;
  flex-direction:column;
  align-items:center;justify-content:center;
  gap:2.5rem;
}
.nav-mobile.open{display:flex}
.nav-mobile a{
  color:var(--text);font-size:1.3rem;
  letter-spacing:0.2em;text-decoration:none;
  font-family:'Rajdhani',sans-serif;font-weight:600;
  transition:color 0.3s;
}
.nav-mobile a:hover{color:var(--green)}

/* APP のドロップダウン（PC）。中身は tools/build_site.py が site.json から生成 */
.nav-dd{position:relative;display:flex;align-items:center}
.nav-dd > a::after{
  content:'';
  display:inline-block;
  width:5px;height:5px;
  margin-left:0.45rem;
  border-right:1px solid currentColor;
  border-bottom:1px solid currentColor;
  transform:translateY(-3px) rotate(45deg);
  transition:transform 0.3s;
}
.nav-dd:hover > a::after,.nav-dd:focus-within > a::after{transform:translateY(0) rotate(225deg)}
.nav-dd:hover > a,.nav-dd:focus-within > a{color:var(--blue)}
.nav-dd-menu{
  position:absolute;
  top:100%;left:50%;
  transform:translate(-50%,6px);
  padding-top:1.1rem;          /* ナビとメニューの隙間でホバーが切れないように */
  opacity:0;visibility:hidden;
  transition:opacity 0.2s,transform 0.2s,visibility 0.2s;
}
.nav-dd:hover .nav-dd-menu,.nav-dd:focus-within .nav-dd-menu{
  opacity:1;visibility:visible;
  transform:translate(-50%,0);
}
.nav-dd-panel{
  min-width:200px;
  padding:0.5rem 0;
  background:rgba(3,8,16,0.96);
  border:1px solid rgba(0,200,255,0.15);
  box-shadow:0 12px 30px rgba(0,0,0,0.45);
}
.nav-links .nav-dd-panel a{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:0.65rem 1.2rem;
  font-family:'Share Tech Mono','Noto Sans JP',monospace;
  font-size:0.78rem;letter-spacing:0.08em;
  white-space:nowrap;
}
.nav-links .nav-dd-panel a:first-child{
  border-bottom:1px solid rgba(0,200,255,0.1);
  margin-bottom:0.3rem;
}
.nav-links .nav-dd-panel a:hover,.nav-links .nav-dd-panel a[aria-current="page"]{
  color:var(--blue);
  background:rgba(0,200,255,0.06);
}
.nav-dd-badge{
  font-size:0.6rem;letter-spacing:0.08em;
  padding:0.05rem 0.4rem;
  border:1px solid rgba(147,182,208,0.35);
  color:var(--muted);
}

/* APP の子項目（スマホメニュー） */
.mobile-group{
  display:flex;flex-direction:column;align-items:center;
  gap:1rem;
}
.nav-mobile a.mobile-sub{
  font-family:'Noto Sans JP',sans-serif;
  font-size:0.92rem;font-weight:400;
  letter-spacing:0.08em;
  color:var(--muted);
}
.nav-mobile a.mobile-sub:hover{color:var(--green)}

/* ================= SECTION ================= */
section{position:relative;z-index:1;padding:6rem 2rem}
.section-inner{max-width:1000px;margin:0 auto}
.section-label{
  font-family:'Share Tech Mono',monospace;
  font-size:0.68rem;letter-spacing:0.35em;
  color:var(--green);
  margin-bottom:1rem;
}
.section-title{
  font-family:'Rajdhani',sans-serif;
  font-size:clamp(1.8rem,4vw,2.8rem);
  font-weight:600;
  letter-spacing:0.05em;
  margin-bottom:1rem;
  line-height:1.2;
}
.section-title em{
  font-style:normal;
  background:linear-gradient(90deg,var(--green),var(--blue));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
.section-desc{
  color:var(--muted);
  font-size:0.9rem;line-height:2;
  max-width:600px;
  margin-bottom:3rem;
}
/* 中央揃えのページ見出しの直下にあるリード文は、PCでは見出しに合わせて中央に置く
   （600px幅のまま左に寄ると、右側が大きく空いて改行が早く見えるため）。
   text-wrap:balance で各行の長さをそろえる。スマホは読みやすさ優先で左揃えのまま。
   行をそろえると語の途中で折れやすいので、本文側に文節の区切り（<wbr>）を入れ、そこでだけ改行させる */
.page-header + section > .section-inner > .section-desc:first-child{
  word-break:keep-all;
  overflow-wrap:anywhere;
}
@media(min-width:641px){
  .page-header + section > .section-inner > .section-desc:first-child{
    margin-left:auto;
    margin-right:auto;
    text-align:center;
    text-wrap:balance;
  }
}

/* ページ先頭のページヘッダー（サブページの見出し） */
.page-header{
  position:relative;z-index:1;
  padding:9rem 2rem 3rem;
  text-align:center;
}

/* DIVIDER */
.divider{
  width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,200,255,0.3),transparent);
  margin:0;
}

/* ================= BUTTON ================= */
.btn{
  padding:0.75rem 2rem;
  font-family:'Rajdhani',sans-serif;
  font-size:0.85rem;font-weight:600;
  letter-spacing:0.15em;
  text-decoration:none;
  border-radius:2px;
  transition:all 0.3s;
  cursor:pointer;border:none;
  display:inline-block;
}
.btn-primary{
  background:linear-gradient(135deg,var(--green),var(--blue));
  color:var(--black);
}
.btn-primary:hover{
  box-shadow:0 0 30px rgba(0,255,136,0.4);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--blue);
  border:1px solid rgba(0,200,255,0.4);
}
.btn-ghost:hover{
  background:var(--glow-blue);
  border-color:var(--blue);
}

/* ================= FOOTER ================= */
footer{
  position:relative;z-index:1;
  border-top:1px solid rgba(0,200,255,0.1);
  padding:3rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:1rem;
}
.footer-logo{
  font-family:'Rajdhani',sans-serif;
  font-size:1.1rem;font-weight:700;
  letter-spacing:0.15em;
}
.footer-logo span{color:var(--green)}
.footer-copy{
  font-family:'Share Tech Mono',monospace;
  font-size:0.65rem;letter-spacing:0.1em;
  color:var(--muted);
}
.footer-contact a{
  font-family:'Share Tech Mono',monospace;
  font-size:0.7rem;
  color:var(--blue);
  text-decoration:none;
  letter-spacing:0.1em;
}

/* ================= RESPONSIVE (共通) ================= */
@media(max-width:768px){
  nav{padding:1rem 1.5rem}
  .nav-links{display:none}
  .nav-hamburger{display:flex}
  section{padding:4rem 1.5rem}
  .page-header{padding:7rem 1.5rem 2rem}
  footer{padding:2rem 1.5rem;flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .section-title{font-size:1.6rem}
}

/* ===================================================================
   スマートフォン最適化（記載内容は変更せず、見え方のみ調整）
   =================================================================== */
/* 途中で折られたくない語（社名・番号など） */
.nb{white-space:nowrap}

@media(max-width:640px){
  /* 日本語見出しが語の途中で折れないようにする
     （keep-all で語のまとまりを保ち、収まらない場合のみ anywhere で折る） */
  .section-title,
  .evo-headline,
  .guide-group-title,
  .company-origin-tagline,
  .scope-name,
  .goal-name,
  .faq-q,
  .qa > summary,
  .feature-title,
  .card-title,
  .tech-card-title,
  .nav-card-title{
    word-break:keep-all;
    overflow-wrap:anywhere;
  }
  .section-title{line-height:1.3}

  /* PC向けに入れている固定改行をスマホでは解除して自然に流す */
  br.pc-br{display:none}

  /* PC基準の余白を圧縮 */
  .page-header{padding:6rem 1.3rem 1.5rem}
  section{padding:3.2rem 1.3rem}
  .section-desc{margin-bottom:2rem;font-size:0.86rem;line-height:1.95}
}

@media(max-width:520px){
  .section-label{letter-spacing:0.22em;font-size:0.62rem}
}

/* ===================================================================
   日本語の文節改行（js/common.js が <wbr> を差し込み、.phrase を付ける）
   <wbr> と句読点の位置でだけ改行。収まらない長い語だけ anywhere で折る。
   text-wrap は対応ブラウザのみ有効（見出しは行長をそろえ、本文は最終行の1〜2文字残りを避ける）
   =================================================================== */
.phrase{
  word-break:keep-all;
  overflow-wrap:anywhere;
}
h1.phrase,h2.phrase,h3.phrase,h4.phrase{text-wrap:balance}
p.phrase,li.phrase,dd.phrase,summary.phrase,td.phrase{text-wrap:pretty}

/* スマホ・縦長の窓でも、ページ見出し直下のリード文は見出しと同じ中央揃えにする
   （左に寄って見えるのを防ぐ。行の長さはそろえ、4行前後でも読みやすくする） */
@media(max-width:640px){
  .page-header + section > .section-inner > .section-desc:first-child{
    margin-left:auto;
    margin-right:auto;
    text-align:center;
    text-wrap:balance;
  }
}