:root{
  --blue:#0068B7; /* アクセントブルー（使い過ぎない） */
  --paper:#FAFAFA; /* ベース（紙の色） */
  --panel:#F2F4F7; /* セクション薄グレー */
  --ink:#000000;   /* 漫画インク黒 */
  --text:#111111;  /* 標準テキスト色 */
  --muted:#6B7280; /* 補助テキスト */

  /* 追加トークン */
  --shadow-sm: 4px 4px 0 var(--ink);
  --shadow-md: 8px 8px 0 var(--ink);
  --shadow-lg: 12px 12px 0 var(--ink);

  --step--1: clamp(12px, 1.6vw, 14px);
  --step-0:  clamp(14px, 1.8vw, 16px);
  --step-1:  clamp(18px, 2.4vw, 20px);
  --step-2:  clamp(22px, 3.2vw, 28px);
  --step-3:  clamp(28px, 4.4vw, 36px);
  --step-4:  clamp(36px, 6vw, 48px);
  --step-5:  clamp(46px, 8vw, 64px);
}

/* Reset */
*{box-sizing:border-box}
html,body{margin:0;padding:0}
img,svg{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid #0ea5e9; outline-offset:2px}

body{
  font-family:"Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color:var(--text);
  background:var(--paper);
  line-height:1.75;
}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.7);backdrop-filter:blur(8px);border-bottom:1px solid #E5E7EB}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{color:var(--ink);text-decoration:none;font-weight:900;letter-spacing:.3px;font-size:var(--step-1)}
.cta-nav .cta{margin:0}

/* Container */
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* Hero */
.hero{position:relative;overflow:hidden;padding:110px 0 90px;background:#fff}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:20px}
.hero-title{font-size:var(--step-5);font-weight:900;line-height:1.1;margin:0 0 6px;text-shadow:2px 2px 0 rgba(0,0,0,.06)}
.hero-sub{font-weight:800;color:#1F2937;margin:0 0 14px;font-size:var(--step-1)}
.lead{max-width:880px;margin:0 auto 24px;color:#374151;font-size:var(--step-0)}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Hero background layers */
.hero .hero-bg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hero .tone{opacity:.35}
.hero .panels{opacity:.45}
.hero .rays{opacity:.20}

/* Section base */
.section{padding:80px 0}
.section-muted{background:var(--panel)}
.section-title{
  font-size:var(--step-3);
  font-weight:900;
  margin:0 0 28px;
  padding-left:16px;
  border-left:10px solid var(--ink);
  cursor:default
}
.section-title:hover{opacity:1} /* hover効果を無効化 */

/* Grid & Cards */
.grid{display:grid;gap:22px}
.cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{
  background:#fff;
  border:5px solid var(--ink);
  padding:26px;
  box-shadow:var(--shadow-md);
  transition:transform .18s ease, box-shadow .18s ease
}
/*.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}*/
.card h3{margin:.2rem 0 .6rem;font-size:18px}
.card-title{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.card-title .icon{width:32px;height:32px;flex:0 0 32px}
svg[aria-hidden="true"], .icon svg{stroke-linecap:round;stroke-linejoin:round;vector-effect:non-scaling-stroke}

/* Problems 2×2 */
.problems .problems-grid{grid-template-columns:1fr;}
@media(min-width:860px){.problems .problems-grid{grid-template-columns:repeat(2,1fr)}}

/* Features badges */
.feature-badges{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.feature-badges li{background:#fff;border:3px solid var(--ink);padding:10px 12px;font-weight:800;box-shadow:var(--shadow-sm)}

/* Chips & badge */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:#F9FAFB;border:2px solid var(--ink);padding:6px 10px;font-weight:700;box-shadow:var(--shadow-sm)}
.badge{display:inline-block;margin-left:8px;background:var(--blue);color:#fff;border:2px solid var(--ink);padding:2px 8px;font-weight:900;box-shadow:3px 3px 0 var(--ink);border-radius:12px}

/* Lists */
.check{margin:0;padding-left:18px}
.check li{margin:6px 0}

/* FAQ */
.faq{background:#fff;border:3px solid var(--ink);box-shadow:var(--shadow-sm);margin:10px 0;border-radius:4px;overflow:hidden}
.faq>summary{cursor:pointer;font-weight:900;padding:12px 14px;list-style:none;position:relative}
.faq>summary::-webkit-details-marker{display:none}
.faq[open]>summary{background:#F3F7FB}
.faq>p{padding:0 14px 14px;margin:0}

/* CTA buttons（既存 .cta を強化） */
.cta{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;background:var(--blue);color:#fff;text-decoration:none;font-weight:900;
  transform:skew(-8deg);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease, transform .15s ease;
  box-shadow:var(--shadow-md)
}
.cta:active{transform:skew(-8deg) translate(1px,1px);box-shadow:6px 6px 0 var(--ink)}
.cta:hover{background:#0b5d9b;color:#fff;box-shadow:var(--shadow-lg)}
.cta-primary{background:var(--blue)}

/* Download CTA (comic glossy) */
.cta-download{
  --bg:#0068B7; --bg2:#0b5d9b; --gloss:rgba(255,255,255,.25);
  background:linear-gradient(180deg,var(--bg) 0%, var(--bg2) 100%);
  color:#fff;border:3px solid var(--ink);
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 22px;box-shadow:var(--shadow-md);
  transform:skew(-8deg);position:relative;overflow:hidden
}
.cta-download .cta-icon{width:22px;height:22px;display:inline-flex}
.cta-download .cta-icon svg{width:22px;height:22px}
.cta-download .cta-label{font-weight:900;letter-spacing:.2px}
.cta-download .cta-badge{
  background:#fff;color:var(--ink);font-weight:900;
  border:2px solid var(--ink);padding:2px 8px;border-radius:999px;
  box-shadow:3px 3px 0 var(--ink);transform:skew(0)
}
/* glossy highlight */
.cta-download::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to bottom, var(--gloss), transparent 60%);
  mix-blend-mode:screen;opacity:.5
}
/* hover microinteraction */
.cta-download:hover{filter:saturate(1.05) brightness(1.02);box-shadow:var(--shadow-lg)}
.cta-download:hover .cta-icon{transform:translateY(1px)}

/* Outline secondary */
.cta-outline{
  background:#fff;color:var(--ink);border:3px solid var(--ink);
  box-shadow:var(--shadow-md);transform:skew(-8deg)
}
.cta-outline:hover{background:#111;color:#fff}

/* microcopy under hero */
.cta-note{margin:10px auto 0;text-align:center;color:#374151;font-size:14px}

/* sticky CTA (mobile) */
.sticky-cta{position:sticky;bottom:0;z-index:60;display:none}
.sticky-inner{display:flex;gap:10px;justify-content:center;padding:10px;background:rgba(255,255,255,.95);border-top:2px solid var(--ink)}
@media(max-width:760px){.sticky-cta{display:block}}

/* Final CTA block */
.final-cta{padding:70px 0;background:linear-gradient(180deg,#FFFFFF 0%, #F5F9FD 100%);text-align:center;border-top:1px solid #E5E7EB;border-bottom:1px solid #E5E7EB}
.final-cta h2{font-size:var(--step-3);margin:0 0 10px}
.final-cta p{margin:0 auto 16px;max-width:760px;color:#374151}

/* Footer */
.site-footer{background:#0B2236;color:#fff}
.footer-inner{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:20px 0;flex-wrap:wrap}
.footer-nav a{color:#fff;text-decoration:none;margin-left:16px}
.footer-nav a:hover{letter-spacing:.1px;text-decoration:underline}

/* ===== Blog（3列固定・画像オーバーレイ） ===== */
.blog { /* .section のベースを継承 */ }

/* 3列固定。ただし狭い幅では2列→1列にフォールバック */
.blog-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}
@media (max-width: 980px) {
  .blog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
}

/* カード（太枠＋影） */
.blog-item { height: 100%; }
.blog-card {
  display: block;
  background: #fff;
  border: 5px solid var(--ink);
  box-shadow: var(--shadow-md);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
  height: 100%;
}
.blog-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); filter: saturate(1.03); }

/* サムネ＋オーバーレイ */
.blog-thumb {
  margin: 0; position: relative; overflow: hidden;
  aspect-ratio: 16 / 9; background: #111;
  border-bottom: 3px solid var(--ink);
}
.blog-thumb img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transform: scale(1); transition: transform .28s ease;
}
.blog-card:hover .blog-thumb img { transform: scale(1.04); }

/* グラデーションで下部に文字帯を作る */
.blog-thumb::after {
  content:""; position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 35%, rgba(0,0,0,55) 100%);
  pointer-events: none;
}

/* タイトル（白文字・2行まで） */
.blog-caption { position:absolute; left:0; right:0; bottom:0; padding: 14px 16px; }
.blog-title {
  color:#DBDBDB; font-weight:900; font-size:18px; line-height:1.5;
  text-shadow: 0 1px 0 rgba(0,0,0,.4); z-index:10000;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}

/* 「すべての記事を見る」 */
.blog-more { margin-top: 18px; display: flex; justify-content: center; }

/* --- Responsive & Motion --- */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}