/* Solar Plug Scout — Gridline design system (approved forward build)
   Independent energy-journal identity. Warmth (terracotta/cream) reserved for CTAs and guidance. */
@font-face{font-family:Montserrat;src:url('/assets/fonts/Montserrat-Regular.ttf') format('truetype');font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:Montserrat;src:url('/assets/fonts/Montserrat-Medium.ttf') format('truetype');font-style:normal;font-weight:500;font-display:swap}
@font-face{font-family:Montserrat;src:url('/assets/fonts/Montserrat-SemiBold.ttf') format('truetype');font-style:normal;font-weight:600;font-display:swap}
@font-face{font-family:Montserrat;src:url('/assets/fonts/Montserrat-SemiBold.ttf') format('truetype');font-style:normal;font-weight:700;font-display:swap}
@font-face{font-family:Montserrat;src:url('/assets/fonts/Montserrat-SemiBold.ttf') format('truetype');font-style:normal;font-weight:800;font-display:swap}

:root{
  --bg:#f6f6f1; --paper:#ffffff; --ink:#1f2620; --muted:#5a6259; --line:#deded3;
  --green:#5a7a4b; --green-soft:#eef2ea; --sun:#e6a81d; --sun-soft:#fdf6e6;
  --clay:#d76a3c; --cream:#fdf6e8; --charcoal:#181d19; --max:76rem;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;line-height:1.6;
  font-feature-settings:"tnum" 1}
a{color:#3f5f36;text-underline-offset:.18em}
a:hover{text-decoration-thickness:.15em}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:60;background:var(--charcoal);color:#fff;padding:.8rem 1rem;border-radius:.3rem;font-weight:600}
.skip-link:focus{top:1rem}
.wrap{width:min(calc(100% - 2rem),var(--max));margin:auto}

/* Header — journal bar */
.site-header{background:var(--paper);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;min-height:4.6rem;flex-wrap:wrap;padding:.5rem 0}
.brand{display:inline-flex;align-items:center;gap:.6rem;color:var(--ink);text-decoration:none;font-size:1.15rem;font-weight:800;letter-spacing:-.02em}
.brand-mark{display:inline-flex;width:1.9rem;height:1.9rem}
.brand-mark svg{width:100%;height:100%;display:block}
.brand{font-family:Montserrat,-apple-system,"Segoe UI",sans-serif}
.site-header nav ul,.site-footer ul{display:flex;flex-wrap:wrap;gap:.35rem 1.1rem;padding:0;margin:0;list-style:none}
.site-header nav a{display:block;padding:.7rem .15rem;color:var(--ink);font-size:.9rem;font-weight:600;text-decoration:none}
.site-header nav a:hover{color:var(--green)}
.site-header nav a[aria-current=page]{box-shadow:inset 0 -2px var(--green);color:var(--green)}
.primary-nav{display:block;visibility:visible}
.menu-button{display:none}
.site-header .menu-button{color:#fff;background:var(--green);border:0;border-radius:999px;padding:.6rem 1.15rem;font-weight:700;cursor:pointer;align-items:center;gap:.45rem}
.site-header .menu-button:hover{background:#4c6940}

/* Hero — journal lede */
.hero{padding:clamp(2.6rem,6vw,5rem) 0 clamp(2rem,4.5vw,3.4rem);border-bottom:1px solid var(--line)}
.hero-inner{max-width:64rem}
.eyebrow,.card-kicker,.label{font-size:.74rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--green)}
h1,h2,h3{font-family:Montserrat,-apple-system,"Segoe UI",sans-serif;line-height:1.1;letter-spacing:-.03em;color:var(--ink)}
h1{font-size:clamp(2.1rem,5.4vw,4rem);max-width:14ch;margin:.45rem 0 1rem;font-weight:800}
h2{font-size:clamp(1.6rem,3.4vw,2.6rem);margin:3rem 0 1rem;font-weight:700}
h3{font-size:1.2rem;margin:.4rem 0}
.lede{font-size:clamp(1.08rem,2vw,1.4rem);max-width:46rem;color:var(--muted);margin:0}
.page-dates{display:flex;flex-wrap:wrap;gap:.6rem 1.1rem;font-size:.84rem;color:var(--muted);margin:1.4rem 0 0;letter-spacing:.02em}
.page-dates span{display:inline-flex;align-items:baseline;gap:.3rem}

/* Sections + prose */
.section{padding:clamp(1.8rem,4vw,3.6rem) 0}
.prose{max-width:74rem}
.prose>p,.prose>ul,.prose>ol{max-width:52rem}

/* Cards / evidence */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin:1.4rem 0}
.card,.status-card,.source-card,.uncertainty,.formula,.placeholder{background:var(--paper);border:1px solid var(--line);border-radius:.6rem}
.card{display:block;padding:1.3rem;border-top:3px solid var(--green)}
.card-link{color:inherit;text-decoration:none;transition:transform .15s,border-color .15s}
.card-link:hover{transform:translateY(-2px);border-top-color:var(--sun)}
.card-link>span:last-child{color:var(--green);font-weight:700}
.card h3{margin-top:0}
/* status card = dated evidence banner */
.status-card{border-left:5px solid var(--green);background:var(--green-soft);padding:1.3rem 1.4rem;margin-bottom:2rem}
.status-card .label{display:block;margin-bottom:.4rem;color:#3f5f36}
.status-card strong{font-size:1.05rem;display:block;margin-bottom:.3rem}
.status-card p{margin:.3rem 0 0;color:var(--ink)}
/* uncertainty */
.uncertainty{border-left:5px solid var(--sun);background:var(--sun-soft);padding:1.1rem 1.3rem;margin:1rem 0}
.uncertainty .label{display:block;margin-bottom:.3rem;color:#966804}
.uncertainty p{margin:.2rem 0 0}
/* source cards */
.source-card{padding:1.1rem 1.3rem;margin:1rem 0}
.source-card .label{display:block;margin-bottom:.35rem}
.source-card p{margin:0}
.source-card p:last-child{margin-bottom:0}
.source-list{list-style:none;padding:0;display:grid;gap:.8rem}
.source-list li{padding:1rem;border-left:3px solid var(--green);background:var(--paper)}

/* decision steps */
.decision-steps{counter-reset:step;list-style:none;padding:0;display:grid;gap:1rem}
.decision-steps li{counter-increment:step;padding:1.2rem 1.2rem 1.2rem 4rem;position:relative;border-top:1px solid var(--line)}
.decision-steps li:before{content:counter(step);position:absolute;left:.6rem;top:1.1rem;display:grid;place-items:center;width:2rem;height:2rem;border-radius:50%;background:var(--green);color:#fff;font-weight:800}

/* formula/note */
.formula{background:var(--green-soft);padding:1.1rem 1.3rem;margin:1rem 0}

/* tables */
table{width:100%;border-collapse:collapse;background:var(--paper);font-size:.94rem}
th,td{text-align:left;vertical-align:top;padding:.85rem .9rem;border-bottom:1px solid var(--line)}
th{background:var(--green-soft);font-family:Montserrat,-apple-system,"Segoe UI",sans-serif;font-weight:700}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:.45rem}
.table-hint{font-size:.85rem;color:var(--muted)}

/* tags */
.tag{display:inline-block;padding:.2rem .55rem;border-radius:999px;background:var(--green-soft);border:1px solid var(--green);color:#3f5f36;font-size:.74rem;font-weight:700}

/* CTA (warm, Backyard Sun) */
.cta,.card-link.cta{display:inline-block;background:var(--clay);color:#fff;font-weight:700;padding:.8rem 1.3rem;border-radius:999px;text-decoration:none;box-shadow:0 8px 18px rgba(215,106,60,.28)}
.cta:hover{color:#fff;background:#c65e30}

/* Footer */
.site-footer{padding:3rem 0;background:var(--charcoal);color:#d7ddd5}
.site-footer a{color:#cfe0c4}
.footer-brand{color:#fff;font-family:Montserrat,-apple-system,"Segoe UI",sans-serif}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:3rem}
.small{font-size:.82rem;color:#a4af9f}
.site-footer p:not(.small){font-size:.9rem}
.site-footer p{line-height:1.6}

/* placeholders */
.placeholder{border:2px dashed var(--line);padding:2rem;border-radius:.6rem;background:var(--paper)}
/* branded diagram figures */
.prose figure{margin:1.5rem 0}
.prose figure img,.prose figure svg{max-width:100%;height:auto;aspect-ratio:640/420;display:block;border:1px solid var(--line);border-radius:.5rem;background:var(--paper)}
.prose figcaption{font-size:.82rem;color:var(--muted);margin-top:.55rem;line-height:1.45}

/* focus */
:focus-visible{outline:3px solid var(--sun);outline-offset:3px}

@media(max-width:900px){.header-inner{align-items:flex-start;flex-direction:column;padding:1rem 0}.card-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.wrap{width:min(calc(100% - 1.25rem),var(--max))}.card-grid,.footer-grid{grid-template-columns:1fr}.header-inner{flex-direction:column;align-items:stretch;text-align:left}.site-header nav a{min-height:44px;display:inline-flex;align-items:center;padding:.6rem .1rem}.menu-button{display:inline-flex}.primary-nav{max-height:0;overflow:hidden;visibility:hidden}.primary-nav[data-open]{max-height:34rem;visibility:visible}.primary-nav ul{flex-direction:column;gap:.2rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card-link{transition:none}}