/* MEPCO Bill Guide — original design system: deep navy + amber on warm cream */
:root{
  --navy:#1c2547; --navy-deep:#11173a; --navy-soft:#2a3768;
  --amber:#f2a007; --amber-light:#ffc94d; --amber-pale:#fff3d9;
  --cream:#faf8f1; --card:#ffffff; --ink:#262b3a; --muted:#5d6579;
  --line:#e9e2d0; --ok:#1e7e46; --danger:#b3261e; --radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  background:var(--cream);color:var(--ink);line-height:1.7;font-size:1.02rem}
.wrap{max-width:1060px;margin:0 auto;padding:0 20px}
a{color:var(--navy-soft);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* utility bar */
.utilbar{background:var(--navy-deep);color:#cdd4ef;font-size:.8rem;padding:7px 0}
.utilbar .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.utilbar strong{color:var(--amber-light)}

/* header */
.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50;
  box-shadow:0 2px 12px rgba(17,23,58,.35)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;gap:14px}
.brand{display:flex;align-items:center;gap:11px;color:#fff}
.brand:hover{text-decoration:none}
.brand-logo{width:42px;height:42px;flex:none;border-radius:11px}
.brand-text{line-height:1.2}
.brand-text b{font-size:1.12rem;letter-spacing:.2px;display:block}
.brand-text small{font-size:.7rem;color:var(--amber-light);letter-spacing:.6px;text-transform:uppercase}
.nav-toggle{background:none;border:1px solid rgba(255,255,255,.35);color:#fff;font-size:1.3rem;
  border-radius:8px;padding:4px 10px;cursor:pointer;display:none}
.main-nav ul{list-style:none;display:flex;gap:2px;flex-wrap:wrap}
.main-nav a{color:#eef1ff;font-size:.88rem;font-weight:600;padding:9px 12px;border-radius:9px;display:block}
.main-nav a:hover,.main-nav a.active{background:rgba(242,160,7,.18);color:#fff;text-decoration:none}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy-deep) 0%,var(--navy) 60%,var(--navy-soft) 100%);
  color:#fff;padding:56px 0 48px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;opacity:.07;
  background-image:repeating-linear-gradient(115deg,transparent,transparent 34px,var(--amber-light) 34px,var(--amber-light) 36px)}
.hero .wrap{position:relative;z-index:1}
.hero h1{font-size:2rem;line-height:1.25;max-width:640px;margin-bottom:12px}
.hero h1 .hl{color:var(--amber-light)}
.hero p.lead{color:#d6dcf5;max-width:620px;font-size:1.06rem;margin-bottom:22px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;font-weight:700;padding:12px 22px;border-radius:10px;border:0;cursor:pointer;font-size:.98rem}
.btn-amber{background:var(--amber);color:var(--navy-deep)}
.btn-amber:hover{background:var(--amber-light);text-decoration:none;color:var(--navy-deep)}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:#fff;text-decoration:none}
.hero-note{margin-top:16px;font-size:.82rem;color:#aeb7dd}

/* page head (inner pages) */
.page-head{background:linear-gradient(135deg,var(--navy-deep),var(--navy-soft));color:#fff;padding:34px 0}
.page-head h1{font-size:1.65rem;line-height:1.3}
.page-head p{color:#c9d1f0;margin-top:8px;max-width:700px}
.crumbs{font-size:.82rem;color:#aeb7dd;margin-bottom:10px}
.crumbs a{color:var(--amber-light)}

/* content */
.content{padding:36px 0 20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;margin-bottom:22px;box-shadow:0 2px 8px rgba(28,37,71,.05)}
.card h2{font-size:1.35rem;color:var(--navy);margin-bottom:12px;padding-bottom:8px;
  border-bottom:3px solid var(--amber);display:inline-block}
.card h3{font-size:1.08rem;color:var(--navy);margin:18px 0 8px}
.card p{margin-bottom:12px}
.card ul,.card ol{margin:0 0 14px 22px}
.card li{margin-bottom:7px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  box-shadow:0 2px 8px rgba(28,37,71,.05);display:flex;flex-direction:column}
.tile h3{color:var(--navy);font-size:1.05rem;margin-bottom:8px}
.tile p{font-size:.93rem;color:var(--muted);flex:1}
.tile a.more{font-weight:700;color:var(--navy);margin-top:10px}
.tile a.more:hover{color:var(--amber)}

/* steps */
.step{display:flex;gap:14px;margin-bottom:16px;align-items:flex-start}
.step-n{flex:none;width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;
  font-weight:800;display:flex;align-items:center;justify-content:center}
.step-n.amber{background:var(--amber);color:var(--navy-deep)}
.step-body b{color:var(--navy)}

/* callouts */
.callout{border-radius:10px;padding:14px 16px;margin:16px 0;font-size:.95rem;border-left:5px solid}
.callout.info{background:#eef2ff;border-color:var(--navy-soft)}
.callout.warn{background:var(--amber-pale);border-color:var(--amber)}
.callout.ok{background:#e9f6ee;border-color:var(--ok)}
.callout b{color:var(--navy)}

/* tables */
.tblwrap{overflow-x:auto;margin:14px 0}
table.tariff{width:100%;border-collapse:collapse;font-size:.93rem;min-width:520px}
table.tariff th{background:var(--navy);color:#fff;text-align:left;padding:10px 12px}
table.tariff td{padding:10px 12px;border-bottom:1px solid var(--line)}
table.tariff tr:nth-child(even) td{background:#f7f4ea}
table.tariff tr.hl td{background:var(--amber-pale);font-weight:700}

/* calculator */
.calc{background:var(--navy);color:#fff;border-radius:var(--radius);padding:28px;margin-bottom:22px}
.calc h2{color:var(--amber-light);margin-bottom:6px}
.calc p.sub{color:#c9d1f0;font-size:.92rem;margin-bottom:18px}
.calc label{display:block;font-size:.88rem;font-weight:600;margin:12px 0 6px;color:#e6ebff}
.calc input[type=number],.calc select{width:100%;padding:12px;border-radius:9px;border:1px solid #4a568c;
  background:#fff;color:var(--ink);font-size:1rem}
.calc .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calc-result{background:#fff;color:var(--ink);border-radius:10px;padding:20px;margin-top:18px;display:none}
.calc-result.show{display:block}
.calc-result .big{font-size:1.9rem;font-weight:800;color:var(--navy)}
.calc-result table{width:100%;border-collapse:collapse;margin-top:10px;font-size:.92rem}
.calc-result td{padding:7px 4px;border-bottom:1px dashed var(--line)}
.calc-result td:last-child{text-align:right;font-weight:700}
.calc-note{font-size:.82rem;color:var(--muted);margin-top:10px}

/* faq */
details.faq{background:var(--card);border:1px solid var(--line);border-radius:10px;margin-bottom:10px;padding:0}
details.faq summary{cursor:pointer;font-weight:700;color:var(--navy);padding:15px 18px;list-style:none}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::before{content:"+ ";color:var(--amber);font-weight:800}
details.faq[open] summary::before{content:"– "}
details.faq .a{padding:0 18px 16px;color:var(--ink);font-size:.96rem}

/* footer */
.site-footer{background:var(--navy-deep);color:#c4cbe8;margin-top:40px;padding:40px 0 22px;font-size:.9rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px;margin-bottom:26px}
.site-footer h4{color:#fff;font-size:.95rem;margin-bottom:12px;letter-spacing:.4px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:7px}
.site-footer a{color:#c4cbe8}
.site-footer a:hover{color:var(--amber-light)}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.foot-bottom{border-top:1px solid #2c3766;padding-top:16px;font-size:.8rem;display:flex;
  justify-content:space-between;gap:10px;flex-wrap:wrap}
.disclaimer-strip{background:#0d1230;color:#9aa3cf;font-size:.78rem;padding:10px 0;text-align:center}

/* misc */
.kbd{background:#efe9d6;border:1px solid var(--line);border-radius:6px;padding:1px 8px;
  font-family:Consolas,monospace;font-size:.92em}
.verify-tag{background:#fff0f0;border:1px dashed var(--danger);color:var(--danger);font-size:.8rem;
  border-radius:6px;padding:2px 8px;font-weight:700;white-space:nowrap}
.src{font-size:.82rem;color:var(--muted)}
.toc{background:var(--amber-pale);border-radius:10px;padding:16px 20px;margin-bottom:22px}
.toc b{color:var(--navy)}
.toc ul{margin:8px 0 0 20px;font-size:.93rem}

@media(max-width:820px){
  .grid2,.grid3,.foot-grid,.calc .row2{grid-template-columns:1fr}
  .nav-toggle{display:block}
  .main-nav{display:none;width:100%}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column}
  .hero h1{font-size:1.55rem}
}