/*
Theme Name: Digitaleyes Blog
Theme URI: https://digitaleyes.tech/blog/
Author: DigitaleyesAI, inc.
Author URI: https://digitaleyes.tech/
Description: 株式会社デジタライズAI コーポレートサイトと統一したブログ用軽量クラシックテーマ。ヘッダー/フッター/配色を本体サイトに合わせ、SEO/AIO（BlogPosting・パンくず構造化データ）を内蔵。
Version: 1.0.3
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: digitaleyes
*/

:root{
  --ink:#0b1020; --ink-soft:#1a2138; --bg:#ffffff; --bg-alt:#f6f7fb;
  --text:#202533; --text-mut:#5c6478; --line:#e6e8f0;
  --accent:#3a6df0; --accent-2:#6ee7ff; --accent-blue:#3a86d6;
  --accent-grad:linear-gradient(120deg,#3a6df0,#7c5cff 55%,#6ee7ff);
  --radius:18px; --maxw:1120px; --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"Noto Sans JP","Manrope",system-ui,-apple-system,"Hiragino Kaku Gothic ProN",sans-serif;
  color:var(--text);background:var(--bg);line-height:1.85;font-weight:400;letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%;height:auto}
.article-hero{margin-bottom:6px}
.article-hero img{width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:14px;border:1px solid var(--line)}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wrap-narrow{max-width:760px}

/* ---------- Header (常時ソリッド) ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);backdrop-filter:saturate(160%) blur(12px);-webkit-backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;height:74px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{display:flex;transition:transform .5s var(--ease)}
.brand-mark svg{border-radius:11px;box-shadow:0 2px 10px rgba(58,134,214,.35)}
.brand:hover .brand-mark{transform:translateY(-1px) scale(1.04)}
.brand-ja{font-size:.7rem;color:var(--text-mut);letter-spacing:.06em;font-weight:500;line-height:1.3;white-space:nowrap;padding-left:11px;margin-left:1px;border-left:1px solid var(--line)}
.wordmark{font-family:"Manrope",sans-serif;font-weight:800;display:inline-flex;align-items:baseline;line-height:1;letter-spacing:-.02em}
.wordmark .w-d{font-size:1.18rem;color:#6b7480}
.wordmark .w-e{font-size:1.18rem;color:var(--accent-blue)}
.wordmark .w-ai{font-size:.66rem;font-style:italic;color:var(--accent-blue);margin-left:3px;align-self:flex-start;position:relative;top:1px}
.wordmark-dark .w-d{color:#9aa3b4}
.wordmark-dark .w-e,.wordmark-dark .w-ai{color:#fff}

.nav{display:flex;align-items:center;gap:26px}
.nav a{font-size:.86rem;font-weight:500;color:var(--text-mut);position:relative;white-space:nowrap;transition:color .25s}
.nav a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--accent-grad);transition:width .3s var(--ease)}
.nav a:hover{color:var(--ink)}
.nav a:hover:not(.nav-cta)::after{width:100%}
.nav a[aria-current="page"]{color:var(--ink)}
.nav a[aria-current="page"]:not(.nav-cta)::after{width:100%}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;padding:0;border-radius:50%;background:var(--ink);color:#fff !important;font-weight:600;transition:transform .25s,box-shadow .25s}
.nav-cta::after{display:none !important}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(11,16,32,.22)}
.nav-cta-icon{width:19px;height:19px;flex:none}
.nav-cta-label{display:none}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s var(--ease)}

/* ---------- Page head / breadcrumb ---------- */
.page-head{background:linear-gradient(180deg,var(--bg-alt),#fff);padding:34px 0 30px}
.breadcrumb{font-size:.78rem;color:var(--text-mut);display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-family:"Manrope","Noto Sans JP",sans-serif}
.breadcrumb a{color:var(--text-mut);transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:500}
.page-head h1{font-size:clamp(1.5rem,4vw,2.15rem);line-height:1.4;color:var(--ink);margin-top:14px;font-weight:700;letter-spacing:.01em;word-break:auto-phrase}
.page-head .lead{margin-top:12px;color:var(--text-mut);font-size:.95rem;max-width:720px}
.post-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:16px;font-size:.8rem;color:var(--text-mut);font-family:"Manrope",sans-serif}
.post-meta .cat{background:var(--ink);color:#fff;padding:4px 12px;border-radius:999px;font-weight:600;letter-spacing:.02em}
.post-meta time{letter-spacing:.03em}

/* ---------- Main layout ---------- */
.site-main{padding:44px 0 72px;min-height:52vh}

/* ---------- Post list (cards) ---------- */
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:26px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.post-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(11,16,32,.08);border-color:transparent}
.post-card .thumb{aspect-ratio:16/9;background:linear-gradient(120deg,#eef1f8,#e3e9f6);overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .pc-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card .pc-cat{font-size:.72rem;font-weight:600;color:var(--accent);letter-spacing:.04em;font-family:"Manrope",sans-serif}
.post-card h2{font-size:1.08rem;line-height:1.5;color:var(--ink);font-weight:700;word-break:auto-phrase}
.post-card p{font-size:.86rem;color:var(--text-mut);line-height:1.75}
.post-card .pc-foot{margin-top:auto;padding-top:8px;font-size:.74rem;color:var(--text-mut);font-family:"Manrope",sans-serif;display:flex;justify-content:space-between;align-items:center}
.post-card .pc-foot .more{color:var(--accent);font-weight:600}

/* ---------- Single article ---------- */
.article{max-width:760px;margin:0 auto}
.article-body{font-size:1rem;color:var(--text)}
.article-body>*{margin-top:1.35em}
.article-body h2{font-size:1.5rem;line-height:1.5;color:var(--ink);font-weight:700;margin-top:2.2em;padding-bottom:.4em;position:relative;word-break:auto-phrase}
.article-body h2::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--accent-grad) left center/64px 2px no-repeat,var(--line)}
.article-body h3{font-size:1.18rem;line-height:1.6;color:var(--ink-soft);font-weight:700;margin-top:1.8em;padding-left:14px;border-left:4px solid var(--accent)}
.article-body h4{font-size:1.04rem;color:var(--ink-soft);font-weight:700;margin-top:1.5em}
.article-body p{line-height:1.95}
.article-body a{color:var(--accent);font-weight:500;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;text-decoration-color:rgba(58,109,240,.35)}
.article-body a:hover{text-decoration-color:var(--accent)}
.article-body ul,.article-body ol{padding-left:1.4em}
.article-body li{margin-top:.5em;line-height:1.9}
.article-body ul>li{list-style:none;position:relative;padding-left:1.1em}
.article-body ul>li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--accent-grad)}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body img{border-radius:12px;border:1px solid var(--line)}
.article-body blockquote{border-left:4px solid var(--accent);background:var(--bg-alt);padding:16px 22px;border-radius:0 12px 12px 0;color:var(--ink-soft)}
.article-body blockquote p{margin-top:.5em}
.article-body blockquote p:first-child{margin-top:0}
.article-body code{background:var(--bg-alt);padding:.15em .45em;border-radius:6px;font-size:.9em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.article-body pre{background:var(--ink);color:#e6e8f0;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:.86rem;line-height:1.7}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body table{width:100%;border-collapse:collapse;font-size:.9rem;display:block;overflow-x:auto}
.article-body table th,.article-body table td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body table th{background:var(--bg-alt);font-weight:700;color:var(--ink);white-space:nowrap}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.6em 0}

/* CTA box */
.cta-box{margin-top:3em;background:linear-gradient(135deg,var(--ink),var(--ink-soft));color:#fff;border-radius:var(--radius);padding:34px 30px;text-align:center}
.cta-box h3{font-size:1.2rem;color:#fff;font-weight:700;border:0;padding:0}
.cta-box p{color:rgba(255,255,255,.78);font-size:.9rem;margin-top:10px}
.cta-box .btn-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;border-radius:999px;font-weight:600;font-size:.92rem;transition:transform .28s var(--ease),box-shadow .28s var(--ease)}
.btn-primary{background:#fff;color:var(--ink)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(110,231,255,.28)}
.btn-ghost{border:1px solid rgba(255,255,255,.34);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-3px)}

/* author / E-E-A-T */
.author-box{margin-top:2.4em;display:flex;gap:16px;align-items:center;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.author-box .ab-mark{flex:none}
.author-box .ab-name{font-weight:700;color:var(--ink);font-size:.95rem}
.author-box .ab-desc{font-size:.82rem;color:var(--text-mut);margin-top:4px;line-height:1.7}

/* related / pillar */
.related{margin-top:3em;border-top:1px solid var(--line);padding-top:2em}
.related h2{font-size:1.15rem;color:var(--ink);font-weight:700;margin-bottom:1em}
.related-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.related-list a{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:transform .25s var(--ease),box-shadow .25s,border-color .25s}
.related-list a:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(11,16,32,.07);border-color:transparent}
.related-list .rl-cat{font-size:.7rem;color:var(--accent);font-weight:600;font-family:"Manrope",sans-serif}
.related-list .rl-title{font-size:.9rem;color:var(--ink);font-weight:600;line-height:1.5;margin-top:6px;word-break:auto-phrase}

/* ---------- Pagination ---------- */
.pagination{margin-top:44px;display:flex;justify-content:center;gap:8px;flex-wrap:wrap;font-family:"Manrope",sans-serif}
.pagination .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:12px;color:var(--text-mut);font-size:.9rem;transition:.25s}
.pagination .page-numbers:hover{border-color:var(--accent);color:var(--accent)}
.pagination .page-numbers.current{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- empty / 404 ---------- */
.notice{max-width:620px;margin:40px auto;text-align:center;color:var(--text-mut)}
.notice h1{font-size:1.6rem;color:var(--ink);margin-bottom:14px}
.notice .btn{margin-top:22px;background:var(--ink);color:#fff}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:60px 0 40px;margin-top:20px}
.footer-inner{display:flex;flex-direction:column;gap:24px}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer-brand .wordmark .w-d,.footer-brand .wordmark .w-e{font-size:1.24rem}
.footer-ja{font-size:.72rem;color:rgba(255,255,255,.6);letter-spacing:.06em;font-weight:500;line-height:1.3;white-space:nowrap;padding-left:12px;border-left:1px solid rgba(255,255,255,.2)}
.footer-nav{display:flex;flex-wrap:wrap;gap:24px}
.footer-nav a{font-size:.86rem;color:rgba(255,255,255,.66);transition:color .25s}
.footer-nav a:hover{color:#fff}
.footer-legal{display:flex;flex-wrap:wrap;gap:22px}
.footer-legal a{font-size:.82rem;color:rgba(255,255,255,.58);transition:color .25s}
.footer-legal a:hover{color:#fff}
.copyright{font-family:"Manrope",sans-serif;font-size:.78rem;color:rgba(255,255,255,.45);letter-spacing:.04em;padding-top:22px;border-top:1px solid rgba(255,255,255,.1)}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .nav-toggle{display:flex}
  .nav{position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:flex-start;gap:4px;background:#fff;border-bottom:1px solid var(--line);padding:16px 24px 24px;transform:translateY(-140%);transition:transform .4s var(--ease);box-shadow:0 20px 40px rgba(11,16,32,.1)}
  .nav.open{transform:translateY(0)}
  .nav a{font-size:1rem;padding:8px 0;width:100%}
  .nav-cta{width:auto;height:auto;border-radius:999px;padding:12px 24px;gap:9px;margin-top:8px}
  .nav-cta-label{display:inline}
  .site-header.menu-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .site-header.menu-open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.menu-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}
@media(max-width:640px){
  .brand-ja{display:none}
  .site-main{padding:32px 0 56px}
  .post-grid{grid-template-columns:1fr}
  .article-body table{font-size:.82rem}
}