/* RENES Energy — Blog shared stylesheet. Same design tokens as the main site. */
:root{
  --bg:#F4F7F3;
  --paper:#FFFFFF;
  --ink:#16241C;
  --green-900:#163E29;
  --green-700:#256B44;
  --green-500:#3E9E56;
  --amber:#EA882D;
  --muted:#586b5f;
  --line:#D6DCD6;
  --line-soft:#E5E9E4;
  --maxw:820px;
  --maxw-wide:1160px;
  --pad:clamp(20px,5vw,64px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:"IBM Plex Sans",system-ui,sans-serif;
  font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:"Archivo",sans-serif;line-height:1.16;letter-spacing:-0.015em;color:var(--green-900)}
a{color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.wrap-wide{max-width:var(--maxw-wide);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}

.eyebrow{
  font-family:"IBM Plex Mono",monospace;font-size:12.5px;font-weight:500;
  letter-spacing:0.14em;text-transform:uppercase;color:var(--green-500);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--amber)}

header{position:sticky;top:0;z-index:50;background:rgba(244,247,243,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-soft)}
.bar{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:var(--maxw-wide);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.logo{display:flex;align-items:center;text-decoration:none}
.logo-img{height:32px;width:auto;display:block}
.nav-blog{font-family:"IBM Plex Mono",monospace;font-size:13px;letter-spacing:.05em;color:var(--green-700);text-decoration:none;padding:8px 14px;border:1px solid var(--line);border-radius:2px}
.nav-blog:hover{border-color:var(--green-500)}

/* ---- blog index ---- */
.hero-b{padding:clamp(48px,8vw,84px) 0 clamp(32px,5vw,52px)}
.hero-b h1{font-size:clamp(30px,5vw,48px);font-weight:800;max-width:16ch}
.hero-b p{margin-top:18px;color:var(--muted);font-size:18px;max-width:56ch}

.post-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:3px;overflow:hidden;margin:36px 0 80px}
.post-card{background:var(--paper);padding:28px clamp(20px,4vw,36px);display:block;text-decoration:none;transition:background .15s}
.post-card:hover{background:#fbfcfb}
.post-card .tag{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.06em;color:var(--amber);text-transform:uppercase}
.post-card h2{font-size:clamp(19px,2.6vw,24px);font-weight:700;margin:10px 0 8px;color:var(--green-900)}
.post-card p{color:var(--muted);font-size:15px;max-width:70ch}
.post-card .meta{margin-top:12px;font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--muted);letter-spacing:.03em}

/* ---- article page ---- */
.article-head{padding:clamp(40px,7vw,72px) 0 8px}
.article-head .tag{font-family:"IBM Plex Mono",monospace;font-size:12.5px;letter-spacing:.08em;color:var(--amber);text-transform:uppercase}
.article-head h1{font-size:clamp(28px,4.4vw,44px);font-weight:800;margin:16px 0 18px}
.article-head .meta{font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--muted);letter-spacing:.03em;display:flex;gap:18px;flex-wrap:wrap}

article{padding:24px 0 20px}
article h2{font-size:clamp(21px,3vw,27px);margin:40px 0 14px}
article h3{font-size:19px;margin:26px 0 10px;color:var(--green-700)}
article p{margin-bottom:18px;color:var(--ink)}
article p.lead{font-size:19px;color:var(--muted);line-height:1.6}
article ul,article ol{margin:0 0 18px 22px}
article li{margin-bottom:8px}
article strong{color:var(--green-900)}
article a.inline-link{color:var(--green-700);text-decoration:underline;text-decoration-color:var(--amber);text-underline-offset:3px}
article blockquote{border-left:3px solid var(--amber);padding:4px 0 4px 20px;margin:24px 0;color:var(--green-700);font-style:italic}

.cta-box{margin:48px 0 20px;background:var(--green-900);border-radius:4px;padding:clamp(26px,4vw,38px);color:#dfeee9}
.cta-box .eyebrow{color:#8fd4c4}
.cta-box .eyebrow::before{background:var(--amber)}
.cta-box h3{color:#fff;font-size:clamp(19px,2.6vw,24px);margin:14px 0 12px;max-width:30ch}
.cta-box p{color:#a9c6bd;margin-bottom:20px;max-width:60ch}
.cta-box a.btn{display:inline-flex;align-items:center;gap:9px;background:var(--amber);color:var(--green-900);
  font-weight:700;font-size:15px;padding:12px 22px;border-radius:2px;text-decoration:none}

.related{margin:56px 0 40px}
.related h3{font-size:14px;font-family:"IBM Plex Mono",monospace;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:620px){.related-grid{grid-template-columns:1fr}}
.related-grid a{display:block;background:var(--paper);border:1px solid var(--line);border-radius:3px;padding:16px 18px;text-decoration:none;font-size:14.5px;color:var(--green-900);font-weight:600}
.related-grid a:hover{border-color:var(--green-500)}

footer{padding:40px 0;border-top:1px solid var(--line-soft);color:var(--muted);margin-top:20px}
.foot{max-width:var(--maxw-wide);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;align-items:center;font-family:"IBM Plex Mono",monospace;font-size:12.5px}
.foot a{color:var(--green-700);text-decoration:none}