/* ============================================================
   MEPCO Bill Online — shared stylesheet
   Mobile-first, deep blue (#0b5cad) + white professional theme
   ============================================================ */
:root{
  --blue:#0b5cad;
  --blue-dark:#084a8a;
  --blue-darker:#063763;
  --blue-light:#eaf3fb;
  --blue-mid:#1a84dc;
  --ink:#1a2a3a;
  --muted:#5a6b7a;
  --line:#c9e0f2;
  --bg:#f2f7fc;
  --card:#ffffff;
  --amber:#b45309;
  --amber-bg:#fef6e3;
  --red:#b91c1c;
  --red-bg:#fdf0f0;
  --radius:14px;
  --shadow:0 6px 24px rgba(8,74,138,.10);
  --shadow-sm:0 2px 8px rgba(8,74,138,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
}
img{max-width:100%}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}

/* ---------- Header ---------- */
.site-header{
  background:linear-gradient(135deg,var(--blue-darker),var(--blue) 60%,var(--blue-mid));
  color:#fff;
  position:sticky;top:0;z-index:50;
  box-shadow:0 2px 12px rgba(0,0,0,.18);
}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.15rem;letter-spacing:.2px}
.logo:hover{text-decoration:none}
.logo .bolt{
  background:#fff;color:var(--blue);width:36px;height:36px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;font-size:1.25rem;flex:0 0 auto;
  box-shadow:inset 0 0 0 2px rgba(11,92,173,.15);
}
.logo small{display:block;font-weight:600;font-size:.68rem;opacity:.85;letter-spacing:.4px;text-transform:uppercase}
.nav-toggle{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);color:#fff;
  border-radius:9px;padding:8px 13px;font-size:1rem;cursor:pointer;
}
.main-nav{display:none;padding:0 0 12px}
.main-nav.open{display:block}
.main-nav a{
  display:block;color:#fff;padding:9px 10px;border-radius:8px;font-weight:600;font-size:.97rem;
}
.main-nav a:hover{background:rgba(255,255,255,.14);text-decoration:none}
@media(min-width:860px){
  .nav-toggle{display:none}
  .main-nav{display:flex;gap:2px;padding:0;flex-wrap:wrap;justify-content:flex-end}
  .main-nav a{display:inline-block;padding:8px 10px}
}

/* ---------- Hero / checker ---------- */
.hero{
  background:linear-gradient(160deg,var(--blue-light),#fff 65%);
  border-bottom:1px solid var(--line);
  padding:26px 0 30px;
}
.hero h1{font-size:1.7rem;line-height:1.25;margin:0 0 8px;color:var(--blue-darker)}
.hero .lead{color:var(--muted);margin:0 0 18px;font-size:1.02rem;max-width:640px}
@media(min-width:860px){.hero h1{font-size:2.2rem}}

.checker{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px;max-width:640px;
}
.checker h2{margin:0 0 4px;font-size:1.15rem;color:var(--blue-darker)}
.checker .sub{margin:0 0 14px;color:var(--muted);font-size:.92rem}
.tabs{display:flex;gap:8px;margin-bottom:14px}
.tab-btn{
  flex:1;padding:11px 8px;border-radius:10px;border:2px solid var(--blue);
  background:#fff;color:var(--blue);font-weight:700;font-size:.98rem;cursor:pointer;
}
.tab-btn[aria-selected="true"]{background:var(--blue);color:#fff}
.checker label{font-weight:700;display:block;margin-bottom:6px;font-size:.95rem}
.input-row{display:flex;gap:10px;flex-wrap:wrap}
.input-row input[type="text"]{
  flex:1 1 220px;font-size:1.12rem;padding:13px 14px;border:2px solid #b4d4ee;
  border-radius:10px;outline:none;letter-spacing:1px;background:#fbfdff;
}
.input-row input[type="text"]:focus{border-color:var(--blue);background:#fff}
.btn{
  display:inline-block;background:var(--blue);color:#fff;border:none;cursor:pointer;
  font-size:1.05rem;font-weight:800;padding:13px 26px;border-radius:10px;
}
.btn:hover{background:var(--blue-dark)}
.btn.secondary{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.btn.small{font-size:.92rem;padding:9px 16px}
.save-row{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:.92rem;color:var(--muted)}
.save-row input{width:17px;height:17px;accent-color:var(--blue)}
.form-error{
  display:none;margin-top:12px;background:var(--red-bg);border:1px solid #f0c6c6;color:var(--red);
  border-radius:10px;padding:11px 13px;font-weight:600;
}
.form-note{font-size:.85rem;color:var(--muted);margin:12px 0 0}
.fallback-panel{
  display:none;margin-top:16px;background:var(--blue-light);border:1px solid #a5cdf2;
  border-radius:12px;padding:15px;font-size:.95rem;
}
.fallback-panel .big-number{
  font-size:1.45rem;font-weight:800;letter-spacing:2px;background:#fff;border:1px dashed var(--blue);
  border-radius:9px;padding:9px 10px;margin:9px 0;text-align:center;word-break:break-all;
}
.copied-tag{display:none;color:var(--blue);font-weight:700;margin-left:8px}

/* ---------- Layout / content ---------- */
main{padding:26px 0 10px}
.breadcrumb{font-size:.88rem;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--muted)}
.breadcrumb .sep{margin:0 6px}
.page-head h1{font-size:1.75rem;line-height:1.25;margin:0 0 8px;color:var(--blue-darker)}
.page-head .lead{color:var(--muted);max-width:720px;margin:0 0 6px}
@media(min-width:860px){.page-head h1{font-size:2.1rem}}
section.block{margin:30px 0}
h2.sec{font-size:1.32rem;color:var(--blue-darker);margin:0 0 12px;line-height:1.3}
h3.sub{font-size:1.08rem;color:var(--blue-dark);margin:20px 0 8px}
p{margin:0 0 12px}
ul,ol{margin:0 0 14px;padding-left:22px}
li{margin-bottom:6px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:18px;
}
.grid{display:grid;gap:14px}
@media(min-width:640px){.grid.cols-2{grid-template-columns:1fr 1fr}}
@media(min-width:900px){.grid.cols-3{grid-template-columns:repeat(3,1fr)}}
.tool-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:18px;color:var(--ink)}
.tool-card:hover{text-decoration:none;border-color:var(--blue-mid);box-shadow:var(--shadow)}
.tool-card .ic{font-size:1.6rem}
.tool-card h3{margin:8px 0 5px;font-size:1.05rem;color:var(--blue-darker)}
.tool-card p{margin:0;color:var(--muted);font-size:.92rem}
table.data{width:100%;border-collapse:collapse;background:#fff;border-radius:10px;overflow:hidden;
  box-shadow:var(--shadow-sm);margin:0 0 16px;font-size:.95rem}
table.data th{background:var(--blue);color:#fff;text-align:left;padding:10px 12px;font-size:.92rem}
table.data td{padding:9px 12px;border-top:1px solid var(--line)}
table.data tr:nth-child(even) td{background:#f5f9fd}
.table-scroll{overflow-x:auto}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-wrap table.data{margin-bottom:16px}
table.data th.rowh{background:var(--blue-light);color:var(--blue-darker);width:32%;vertical-align:top}
figure.infographic{
  margin:18px 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:14px;
}
figure.infographic img{display:block;width:100%;height:auto;border-radius:8px}
figure.infographic figcaption{font-size:.87rem;color:var(--muted);margin-top:10px;text-align:center}
.callout{border-radius:12px;padding:15px 17px;margin:16px 0;font-size:.96rem}
.callout.blue{background:var(--blue-light);border:1px solid #a5cdf2}
.callout.amber{background:var(--amber-bg);border:1px solid #eed9a4}
.callout strong{color:var(--blue-darker)}
.callout.amber strong{color:var(--amber)}
.steps{counter-reset:step;list-style:none;padding:0}
.steps li{
  position:relative;padding:13px 14px 13px 56px;background:#fff;border:1px solid var(--line);
  border-radius:12px;margin-bottom:10px;box-shadow:var(--shadow-sm);
}
.steps li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:13px;top:12px;width:30px;height:30px;border-radius:50%;
  background:var(--blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;
}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;box-shadow:var(--shadow-sm)}
.faq-item summary{cursor:pointer;font-weight:700;padding:14px 16px;color:var(--blue-darker)}
.faq-item .a{padding:0 16px 14px;color:#33475a}
.chip{display:inline-block;background:var(--blue-light);color:var(--blue-dark);border:1px solid #bfe1f8;
  border-radius:999px;padding:3px 11px;font-size:.82rem;font-weight:700;margin:0 6px 8px 0}
.districts{columns:2;column-gap:26px}
@media(min-width:760px){.districts{columns:3}}
.related{margin-top:34px}
.muted{color:var(--muted)}
.small{font-size:.88rem}
.fresh-note{
  display:inline-block;background:var(--blue-light);border:1px solid #a5cdf2;color:var(--blue-darker);
  border-radius:999px;padding:6px 14px;font-size:.9rem;font-weight:600;margin:0 0 14px;
}
.link-list{list-style:none;padding:0;margin:0}
.link-list li{margin-bottom:9px}
.link-list a{font-weight:600}
.link-list span{display:block;color:var(--muted);font-size:.88rem}

/* ---------- Calculator ---------- */
.calc-form{display:grid;gap:14px}
.calc-form .field label{font-weight:700;display:block;margin-bottom:6px}
.calc-form input[type="number"],.calc-form select{
  width:100%;font-size:1.05rem;padding:12px 13px;border:2px solid #b4d4ee;border-radius:10px;outline:none;background:#fbfdff;
}
.calc-form input:focus,.calc-form select:focus{border-color:var(--blue);background:#fff}
.radio-row{display:flex;gap:8px;flex-wrap:wrap}
.radio-pill{border:2px solid var(--blue);border-radius:999px;padding:8px 15px;font-weight:700;color:var(--blue);cursor:pointer;background:#fff}
.radio-pill input{accent-color:var(--blue);margin-right:6px}
.calc-result{display:none;margin-top:18px}
.calc-result table td:last-child{text-align:right;font-weight:700;white-space:nowrap}
.total-row td{background:var(--blue)!important;color:#fff;font-size:1.05rem}

/* ---------- Footer ---------- */
.site-footer{background:var(--blue-darker);color:#d9ecfa;margin-top:44px}
.footer-in{padding:30px 0 10px}
.footer-grid{display:grid;gap:20px}
@media(min-width:560px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1020px){.footer-grid{grid-template-columns:1.3fr .85fr .95fr .8fr .8fr}}
.footer-meta{display:block;margin-top:8px;color:#cfe5f7}
.site-footer h4{color:#fff;margin:0 0 10px;font-size:1rem}
.site-footer a{color:#bfe1f8;display:block;padding:3px 0;font-size:.93rem}
.site-footer p{font-size:.9rem;color:#b9d4ea}
.disclaimer{
  border-top:1px solid rgba(255,255,255,.18);margin-top:22px;padding:16px 0 22px;
  font-size:.85rem;color:#a9c8de;
}
.disclaimer strong{color:#e6f2fb}

/* ---------- Cookie consent banner ---------- */
.cookie-banner{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:var(--blue-darker);color:#e6f2fb;
  box-shadow:0 -4px 18px rgba(0,0,0,.28);padding:10px 0;
}
.cookie-banner .wrap{display:flex;align-items:center;gap:10px 14px;flex-wrap:wrap}
.cookie-banner p{margin:0;font-size:.88rem;line-height:1.45;flex:1 1 250px}
.cookie-banner a{color:#bfe1f8;text-decoration:underline}
.cookie-banner .btn{
  background:#fff;color:var(--blue-darker);font-size:.93rem;padding:9px 22px;flex:0 0 auto;
}
.cookie-banner .btn:hover{background:var(--blue-light)}