/* KiloWise — main stylesheet. Tokens in brand-tokens.css (imported first in HTML). */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.6}
h1,h2,h3{font-family:var(--font-display);line-height:1.2;margin:0 0 .5em}
h1{font-size:32px}h2{font-size:26px}h3{font-size:20px}
a{color:var(--brand-green)}
a:hover{color:var(--brand-green-deep)}
img,svg{max-width:100%;height:auto}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.article{max-width:720px;margin:0 auto}
.muted{color:var(--muted);font-size:14px}
.small{font-size:13px}
/* Header / nav */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--font-display);font-weight:700;font-size:24px}
.brand img{width:40px;height:40px;flex:none}
.main-nav{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto}
.main-nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:600;font-size:15px}
.main-nav a:hover{background:var(--paper)}
.main-nav a[aria-current="page"]{background:var(--brand-green);color:#fff}
.nav-toggle{display:none;background:var(--brand-green);color:#fff;border:0;border-radius:8px;padding:8px 12px;font-weight:600;cursor:pointer}
/* Hero — two-column: copy + bill-breakdown visual */
.hero{background:var(--brand-green);color:#fff;padding:48px 32px 40px;border-radius:16px}
.hero h1{color:#fff;font-size:44px;margin-bottom:12px}
.hero p{font-size:19px;max-width:640px;margin:0 0 20px}
.hero .tagline{font-family:var(--font-display);font-size:22px}
.hero a{color:#fff}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.hero-lede{font-size:20px;line-height:1.55}
.hero-note{font-size:14px;opacity:.85;margin-top:-8px}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.eyebrow-light{color:var(--brand-amber)}
.trust-strip{list-style:none;margin:24px 0 0;padding:16px 0 0;border-top:1px solid rgba(255,255,255,.25);display:flex;flex-direction:column;gap:8px;font-size:15px}
.trust-strip li{margin:0}
.trust-strip strong{color:var(--brand-amber)}
.hero-visual{background:var(--card);color:var(--ink);border-radius:12px;padding:20px;margin:0}
.hero-visual figcaption{font-family:var(--font-display);font-weight:700;font-size:18px;color:var(--ink);margin-bottom:12px}
.hero-visual svg{width:100%;height:auto;display:block}
.hero-visual-note{font-size:13px;color:var(--muted);line-height:1.5;margin:12px 0 0}
.section-intro{font-size:18px;max-width:680px;margin:-8px 0 20px}
.card-cta{margin:12px 0 0;font-weight:600}
.card-step{position:relative;padding-top:24px}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--brand-green);color:#fff;font-family:var(--font-display);font-weight:700;font-size:18px;margin-bottom:12px}
.card-tool{border-top:4px solid var(--brand-amber)}
.card-guide{border-top:4px solid var(--brand-green)}
.card:hover{transform:translateY(-2px);transition:transform .15s ease}
.card:hover{box-shadow:0 4px 18px rgba(14,77,58,.16)}
.how-grid .card h3{color:var(--brand-green)}
.footer-brand{display:flex;align-items:center;gap:8px;font-family:var(--font-display);font-weight:700;font-size:20px;color:#fff;margin:0 0 8px}
.footer-brand img{flex:none}
/* Guide readability: heading rhythm, key-number callouts, next step */
.article h2{margin-top:1.8em;padding-top:.6em;border-top:1px solid var(--line)}
.article h2:first-of-type{margin-top:1.2em}
.article>p:first-of-type{font-size:19px;line-height:1.6}
.callout{background:#FFF7D6;border:1px solid #E8C547;border-left:4px solid var(--brand-amber);border-radius:8px;padding:14px 16px;margin:20px 0}
.key-number{font-family:var(--font-display);font-size:28px;font-weight:700;color:var(--brand-green)}
.next-step{background:var(--brand-green);color:#fff;border-radius:12px;padding:24px;margin:32px 0 16px}
.next-step h2{color:#fff;margin:0 0 8px;padding:0;border:0}
.next-step p{margin:0 0 16px}
.next-step .button-green{background:var(--brand-amber);color:var(--ink);border:0}
.next-step .button-green:hover{background:#e0a100}
/* Buttons */
.button-primary{display:inline-block;background:var(--brand-amber);color:var(--ink);border-radius:10px;padding:12px 20px;font-weight:700;text-decoration:none;border:2px solid var(--brand-amber)}
.button-primary:hover{background:#e0a100}
.button-green{display:inline-block;background:var(--brand-green);color:#fff;border-radius:10px;padding:12px 20px;font-weight:600;text-decoration:none}
.button-green:hover{background:var(--brand-green-deep)}
.button-secondary{display:inline-block;background:var(--card);color:var(--brand-green);border:1px solid var(--brand-green);border-radius:10px;padding:12px 20px;font-weight:600;text-decoration:none}
main{padding:32px 0 48px}
section{margin-bottom:32px}
/* Cards / grids */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h2,.card h3{margin-top:0}
.card a{color:var(--brand-green)}
.card .meta{font-size:13px;color:var(--muted)}
.card:hover{box-shadow:0 2px 12px rgba(14,77,58,.12)}
/* Tool panels */
.tool-panel{background:var(--paper);border-left:4px solid var(--brand-green);padding:20px;border-radius:0 12px 12px 0;margin:20px 0}
.tool-panel .field{margin-bottom:14px}
.tool-panel label{display:block;font-weight:600;margin-bottom:4px}
.tool-panel input,.tool-panel select{width:100%;max-width:420px;padding:10px;border:1px solid var(--line);border-radius:8px;font-size:16px;font-family:var(--font-body)}
.tool-panel input:focus,.tool-panel select:focus{outline:3px solid var(--brand-amber);outline-offset:1px}
.tool-panel fieldset{border:1px solid var(--line);border-radius:8px;margin:0 0 14px;padding:12px}
.tool-panel legend{font-weight:600;padding:0 6px}
.result{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;margin-top:20px}
.result .headline{font-size:32px;font-weight:700;color:var(--brand-green);font-family:var(--font-display)}
.result .good{color:var(--good)}
.estimate-note{background:#FFF7D6;border:1px solid #E8C547;border-radius:8px;padding:12px;font-size:14px;margin:16px 0}
.formula{font-size:13px;color:var(--muted);font-family:ui-monospace,monospace;background:var(--paper);padding:8px;border-radius:6px;overflow-x:auto}
table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px}
th,td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
th{font-size:13px;text-transform:uppercase;color:var(--muted);background:var(--paper)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tbody tr:nth-child(even){background:#FBFAF6}
/* Footer */
.site-footer{background:var(--brand-green-deep);color:#DDE5DF;padding:32px 0;margin-top:32px}
.site-footer a{color:#fff}
.site-footer .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.site-footer h3{color:#fff;font-size:16px}
.draft-notice{background:#FFF7D6;border:1px solid #E8C547;border-radius:8px;padding:12px 16px;margin:16px 0}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:16px}
.breadcrumb a{color:var(--muted)}
.checklist li{margin-bottom:8px}
.print-only{display:none}
@media print{.site-header,.site-footer,.no-print{display:none!important}.print-only{display:block}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .card:hover{transform:none;transition:none}
}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--brand-amber);outline-offset:2px}
@media (max-width:760px){
  table{display:block;overflow-x:auto;white-space:nowrap}
  h1{font-size:28px}.hero h1{font-size:32px}
  .hero{padding:32px 20px}
  .hero-grid{grid-template-columns:1fr;gap:20px}
  .hero-visual{order:2}
  .grid,.grid-2{grid-template-columns:1fr}
  .site-footer .wrap{grid-template-columns:1fr}
  .nav-toggle{display:block}
  .main-nav{display:none;width:100%;flex-direction:column}
  .main-nav.open{display:flex}
  .wrap{padding-left:16px;padding-right:16px}
  table{font-size:14px}
}