/* electricity-bill-calculator (eb) v3 */
.eb-calc-wrapper{--eb-navy:#002868;--eb-red:#BF0A30;--eb-green:#00875A;--eb-saffron:#FF9933;--eb-bg:#F4F6FA;--eb-border:#D0D9E8;--eb-text:#1A1A2E;--eb-muted:#5A6B85;--eb-faint:#4D6666;font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--eb-text);line-height:1.7;max-width:1080px;margin:0 auto;padding:0 16px}
.eb-calc-wrapper *{box-sizing:border-box}
.eb-calc-wrapper h1,.eb-calc-wrapper h2,.eb-calc-wrapper h3{font-family:'Montserrat',system-ui,sans-serif;line-height:1.25;color:var(--eb-navy)}

/* HERO */
.eb-hero{color:#fff;border-radius:16px;padding:44px 48px 40px;margin:18px 0 30px;background:linear-gradient(135deg,#002868 0%,#001a4d 60%,#BF0A30 100%)}
.eb-hero h1{color:#fff;font-size:clamp(1.6rem,3.4vw,2.4rem);margin:14px 0 10px}
.eb-badge{display:inline-block;background:rgba(255,153,51,.22);color:#FFD8A8;border:1px solid rgba(255,153,51,.5);padding:5px 14px;border-radius:999px;font-size:.78rem;font-weight:600;letter-spacing:.03em;text-transform:uppercase}
.eb-subtitle{color:#DCE6F5;font-size:clamp(1rem,1.6vw,1.15rem);max-width:770px;margin:0 0 20px}
.eb-pills{display:flex;flex-wrap:wrap;gap:10px}
.eb-pill{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#EAF1FB;padding:7px 14px;border-radius:999px;font-size:.83rem;font-weight:500}

/* SECTION */
.eb-section{margin:34px 0}
.eb-section h2{font-size:clamp(1.3rem,2.4vw,1.75rem);margin:0 0 14px;padding-bottom:8px;border-bottom:3px solid var(--eb-saffron)}
.eb-section h3{font-size:1.12rem;margin:22px 0 8px;color:var(--eb-red)}
.eb-section p{margin:0 0 14px}

/* CALCULATOR */
.eb-calc{background:var(--eb-bg);border:1px solid var(--eb-border);border-radius:16px;padding:26px;margin:8px 0 20px}
.eb-calc-header h2{border:0;margin:0 0 18px;padding:0}
.eb-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.eb-inputs{display:flex;flex-direction:column;gap:16px}
.eb-field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px;color:var(--eb-navy)}
.eb-field input,.eb-field select{width:100%;padding:11px 13px;border:1px solid var(--eb-border);border-radius:10px;font-size:1rem;background:#fff;color:var(--eb-text);font-family:inherit}
.eb-field input:focus,.eb-field select:focus{outline:2px solid var(--eb-saffron);border-color:var(--eb-saffron)}
.eb-hint{font-size:.78rem;color:var(--eb-faint);margin-top:5px}
.eb-radios{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.eb-radio{position:relative}
.eb-radio input{position:absolute;opacity:0;pointer-events:none}
.eb-radio label{display:block;text-align:center;padding:10px 8px;border:1px solid var(--eb-border);border-radius:10px;background:#fff;cursor:pointer;font-weight:600;font-size:.86rem;color:var(--eb-navy);transition:all .15s;margin:0}
.eb-radio input:checked + label{background:var(--eb-navy);color:#fff;border-color:var(--eb-navy)}

/* FAMILY ROWS */
.eb-fam-row{display:grid;grid-template-columns:1fr 1.4fr auto;gap:8px;margin-bottom:8px;align-items:center}
.eb-fam-row input,.eb-fam-row select{padding:9px 11px;border:1px solid var(--eb-border);border-radius:8px;font-size:.9rem;background:#fff;color:var(--eb-text);font-family:inherit}
.eb-fam-del{background:var(--eb-red);color:#fff;border:0;border-radius:8px;padding:9px 12px;font-size:.82rem;cursor:pointer;font-weight:600}
.eb-add-btn{background:var(--eb-green);color:#fff;border:0;border-radius:8px;padding:10px 16px;font-size:.9rem;cursor:pointer;font-weight:600;font-family:'Montserrat',sans-serif;margin-top:4px}

/* RESULTS */
.eb-results,.eb-fam-results{display:none}
.eb-results-box{background:var(--eb-navy);color:#fff;border-radius:14px;padding:22px;margin-bottom:16px}
.eb-headline{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.eb-head-card{border-radius:10px;padding:14px 16px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15)}
.eb-head-card .k{font-size:.74rem;color:#CDD8EC;margin:0 0 3px;text-transform:uppercase;letter-spacing:.03em}
.eb-head-card .v{font-family:'Montserrat',sans-serif;font-size:1.5rem;font-weight:700;color:#fff;margin:0}
.eb-subrow{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:6px}
.eb-mini .k{font-size:.72rem;color:#AEC2E4;margin:0;text-transform:uppercase;letter-spacing:.03em}
.eb-mini .v{font-family:'Montserrat',sans-serif;font-size:1.05rem;font-weight:600;color:#fff;margin:2px 0 0}
.eb-approp{width:100%;border-collapse:collapse;margin:12px 0 0;background:#fff;border-radius:10px;overflow:hidden;border:1px solid var(--eb-border)}
.eb-approp td{padding:8px 13px;border-bottom:1px solid var(--eb-border);font-size:.88rem;color:var(--eb-text)}
.eb-approp tr:last-child td{border-bottom:0}
.eb-approp td:last-child{text-align:right;font-weight:600;font-family:'Montserrat',sans-serif;color:var(--eb-navy)}
.eb-approp caption{caption-side:top;text-align:left;font-size:.76rem;color:#CDD8EC;padding:0 0 6px}
.eb-note{border-radius:10px;padding:13px 15px;font-size:.88rem;margin-top:12px}
.eb-note-status{background:#FFF6E9;border:1px solid #FFD8A8;color:#7A4208}
.eb-note-tax{background:rgba(0,135,90,.12);border:1px solid rgba(0,135,90,.4);color:#0A5C42}
.eb-note-reality{background:rgba(191,10,48,.08);border:1px solid rgba(191,10,48,.35);color:#8A1020}
.eb-chart-wrap{position:relative;height:300px;background:#fff;border:1px solid var(--eb-border);border-radius:12px;padding:14px 12px 8px;margin-top:16px}
.eb-chart-cap{font-size:.78rem;color:var(--eb-faint);text-align:center;margin:6px 0 0}
.eb-chart-wrap canvas{max-width:100%}
.eb-fam-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}

/* ACTIONS */
.eb-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.eb-btn-primary,.eb-btn-secondary,.eb-btn-wa{border:0;border-radius:10px;padding:13px 22px;font-size:1rem;font-weight:600;cursor:pointer;font-family:'Montserrat',sans-serif}
.eb-btn-primary{background:var(--eb-saffron);color:#3A2200}
.eb-btn-primary:hover{background:#F08A1D}
.eb-btn-secondary{background:var(--eb-navy);color:#fff}
.eb-btn-wa{background:var(--eb-green);color:#fff}

/* TABLES */
.eb-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.9rem}
.eb-table th,.eb-table td{border:1px solid var(--eb-border);padding:10px 12px;text-align:left}
.eb-table th{background:var(--eb-navy);color:#fff;font-family:'Montserrat',sans-serif;font-size:.85rem}
.eb-table tr:nth-child(even) td{background:var(--eb-bg)}
.eb-table caption{caption-side:top;font-size:.82rem;color:var(--eb-faint);text-align:left;margin-bottom:6px}

/* EXAMPLES / TIPS */
.eb-example{background:var(--eb-bg);border-left:4px solid var(--eb-saffron);border-radius:0 10px 10px 0;padding:16px 20px;margin:14px 0}
.eb-example h3{margin-top:0}
.eb-tips{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}
.eb-tip{background:#fff;border:1px solid var(--eb-border);border-radius:12px;padding:16px 18px}
.eb-tip h3{margin:0 0 6px;font-size:1rem;color:var(--eb-navy)}
.eb-tip p{margin:0;font-size:.9rem;color:var(--eb-muted)}

/* FAQ */
.eb-faqs{margin:14px 0}
.eb-faqs details{border:1px solid var(--eb-border);border-radius:10px;margin-bottom:10px;background:#fff;overflow:hidden}
.eb-faqs summary{padding:14px 18px;font-weight:600;cursor:pointer;color:var(--eb-navy);font-family:'Montserrat',sans-serif;font-size:.96rem;list-style:none}
.eb-faqs summary::-webkit-details-marker{display:none}
.eb-faqs summary::after{content:'+';float:right;font-size:1.3rem;color:var(--eb-saffron);line-height:1}
.eb-faqs details[open] summary::after{content:'−'}
.eb-faqs details p{padding:0 18px 16px;margin:0;color:var(--eb-muted);font-size:.92rem}

/* RELATED */
.eb-related{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:14px 0}
.eb-related-card{display:block;background:#fff;border:1px solid var(--eb-border);border-radius:12px;padding:16px;text-decoration:none;color:var(--eb-text);transition:box-shadow .15s,transform .15s}
.eb-related-card:hover{box-shadow:0 6px 18px rgba(0,40,104,.12);transform:translateY(-2px)}
.eb-related-card .ic{font-size:1.5rem}
.eb-related-card .nm{display:block;font-weight:700;font-family:'Montserrat',sans-serif;color:var(--eb-navy);margin:6px 0 4px;font-size:.95rem}
.eb-related-card .ds{font-size:.82rem;color:var(--eb-muted)}

/* LEGAL */
.eb-legal{background:var(--eb-bg);border:1px solid var(--eb-border);border-radius:12px;padding:20px 22px;margin:28px 0 20px;font-size:.86rem;color:var(--eb-muted)}
.eb-legal h2{font-size:1.1rem;border:0;padding:0;margin:0 0 10px}
.eb-legal a{color:var(--eb-navy);font-weight:600}

/* EDITABLE SLAB ROWS + APPLIANCE */
.eb-slab-row{display:grid;grid-template-columns:1.3fr 1fr auto;gap:8px;margin-bottom:8px;align-items:center}
.eb-slab-row input{padding:9px 11px;border:1px solid var(--eb-border);border-radius:8px;font-size:.9rem;background:#fff;color:var(--eb-text);font-family:inherit}
.eb-slab-del{background:var(--eb-red);color:#fff;border:0;border-radius:8px;padding:9px 12px;font-size:.82rem;cursor:pointer;font-weight:600}
.eb-add-slab{background:var(--eb-green);color:#fff;border:0;border-radius:8px;padding:10px 16px;font-size:.9rem;cursor:pointer;font-weight:600;font-family:'Montserrat',sans-serif;margin-top:4px}
.eb-marginal-box{background:#FFF6E9;border:1px solid #FFD8A8;border-radius:12px;padding:16px 18px;margin-top:14px}
.eb-marginal-box h3{margin:0 0 8px;font-size:1rem;color:#7A4208}
.eb-marginal-figs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:8px}
.eb-marginal-figs .k{font-size:.72rem;text-transform:uppercase;letter-spacing:.03em;color:#9A6420;margin:0}
.eb-marginal-figs .v{font-family:'Montserrat',sans-serif;font-weight:700;font-size:1.15rem;color:#7A4208;margin:2px 0 0}
.eb-ap-panel{background:#fff;border:1px solid var(--eb-border);border-radius:12px;padding:16px 18px;margin-top:14px}
.eb-ap-panel h3{margin:0 0 10px;font-size:1rem;color:var(--eb-navy)}
.eb-ap-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-bottom:10px}
.eb-ap-result{display:none;margin-top:10px;background:var(--eb-bg);border-radius:10px;padding:12px 14px}
.eb-ap-result .big{font-family:'Montserrat',sans-serif;font-weight:700;font-size:1.3rem;color:var(--eb-red)}
[data-theme="dark"] .eb-marginal-box{background:#3A2A12;border-color:#5A4420}
[data-theme="dark"] .eb-marginal-box h3,[data-theme="dark"] .eb-marginal-figs .v{color:#FFD8A8}
[data-theme="dark"] .eb-ap-panel{background:#0E1B31}
[data-theme="dark"] .eb-slab-row input{background:#0E1B31;color:#E8EEF8}

/* DARK MODE */
[data-theme="dark"] .eb-calc-wrapper{--eb-bg:#12213B;--eb-border:#26385A;--eb-text:#E8EEF8;--eb-muted:#9DB0CE;--eb-faint:#8DA0BE;--eb-navy:#7FA8E8}
[data-theme="dark"] .eb-calc-wrapper h1,[data-theme="dark"] .eb-calc-wrapper h2,[data-theme="dark"] .eb-calc-wrapper h3{color:#BCD3F5}
[data-theme="dark"] .eb-calc,[data-theme="dark"] .eb-tip,[data-theme="dark"] .eb-faqs details,[data-theme="dark"] .eb-related-card,[data-theme="dark"] .eb-field input,[data-theme="dark"] .eb-field select,[data-theme="dark"] .eb-approp,[data-theme="dark"] .eb-chart-wrap,[data-theme="dark"] .eb-radio label,[data-theme="dark"] .eb-fam-row input,[data-theme="dark"] .eb-fam-row select{background:#0E1B31;color:#E8EEF8}
[data-theme="dark"] .eb-approp td{color:#E8EEF8}
[data-theme="dark"] .eb-table th{background:#1B2B4A}
[data-theme="dark"] .eb-table tr:nth-child(even) td{background:#16263F}

/* RESPONSIVE */
@media (max-width:768px){
  .eb-hero{padding:30px 22px 26px}
  .eb-grid{grid-template-columns:1fr}
  .eb-tips{grid-template-columns:1fr}
  .eb-related{grid-template-columns:1fr 1fr}
  .eb-headline,.eb-subrow,.eb-fam-grid{grid-template-columns:1fr}
}
@media (max-width:560px){
  .eb-actions{flex-direction:column}
  .eb-btn-primary,.eb-btn-secondary,.eb-btn-wa{width:100%;flex:none;border-radius:10px;white-space:nowrap}
  .eb-related{grid-template-columns:1fr}
  .eb-fam-row{grid-template-columns:1fr 1fr auto}
}