:root{
      --bg:#f6f8f5;
      --card:#ffffff;
      --ink:#13231d;
      --muted:#5d6d66;
      --line:#dbe4df;
      --brand:#0d6b50;
      --brand-dark:#0d3b2e;
      --soft:#e9f5ef;
      --warm:#fff7df;
      --danger:#a52a2a;
      --shadow:0 14px 40px rgba(19,35,29,.08);
      --radius:20px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      color:var(--ink);
      background:linear-gradient(180deg,#f3f8f4 0,#f8faf8 36%,#fff 100%);
      line-height:1.55;
    }
    a{color:var(--brand-dark);text-underline-offset:3px}
    .wrap{max-width:1080px;margin:auto;padding:0 22px}
    header{
      border-bottom:1px solid rgba(13,59,46,.08);
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(10px);
      position:sticky;top:0;z-index:10
    }
    .nav{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .logo{font-weight:900;letter-spacing:-.02em;text-decoration:none;color:var(--brand-dark)}
    .nav a.cta{background:var(--brand-dark);color:#fff;padding:9px 13px;border-radius:10px;text-decoration:none;font-weight:800}
    .hero{padding:68px 0 38px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      background:var(--soft);color:var(--brand-dark);
      border:1px solid #cfe5d9;border-radius:999px;
      padding:7px 11px;font-size:.9rem;font-weight:800
    }
    h1,h2,h3{letter-spacing:-.035em;line-height:1.08;margin-top:0}
    h1{font-size:clamp(2.35rem,7vw,5rem);max-width:920px;margin:18px 0 18px}
    h2{font-size:clamp(1.65rem,4vw,2.55rem);margin-bottom:12px}
    h3{font-size:1.15rem;margin-bottom:8px}
    .lead{font-size:clamp(1.05rem,2vw,1.28rem);max-width:760px;color:#3f5149}
    .grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:28px;align-items:start}
    .card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:var(--shadow);padding:26px
    }
    .sticky{position:sticky;top:88px}
    .section-title{display:flex;align-items:center;gap:10px;margin:4px 0 2px}
    .step{
      min-width:30px;height:30px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
      background:var(--brand-dark);color:#fff;font-weight:900;font-size:.9rem
    }
    .hint{font-size:.9rem;color:var(--muted);margin:4px 0 14px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    label{display:block;font-weight:800;font-size:.95rem}
    .field{margin-top:15px}
    input,select{
      width:100%;margin-top:6px;padding:13px 12px;border:1px solid #b9c8c0;border-radius:11px;
      background:#fff;color:var(--ink);font:inherit;font-size:16px
    }
    input:focus,select:focus{outline:3px solid rgba(13,107,80,.16);border-color:var(--brand)}
    .help{display:block;font-weight:500;font-size:.82rem;color:var(--muted);margin-top:5px}
    .optional{font-size:.78rem;color:var(--muted);font-weight:650}
    .check-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
    .check{
      display:flex;gap:9px;align-items:flex-start;padding:11px;border:1px solid var(--line);
      border-radius:12px;font-weight:700;background:#fbfcfb
    }
    .check input{width:auto;margin:3px 0 0}
    .divider{height:1px;background:var(--line);margin:24px 0}
    button{
      border:0;border-radius:12px;padding:14px 17px;font:inherit;font-weight:900;cursor:pointer;
      transition:transform .08s ease,box-shadow .15s ease
    }
    button:active{transform:translateY(1px)}
    .primary{width:100%;background:var(--brand-dark);color:#fff;box-shadow:0 8px 24px rgba(13,59,46,.18)}
    .secondary{background:#edf2ef;color:var(--brand-dark)}
    .button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
    .error{
      display:none;margin:16px 0 0;padding:12px 14px;border-radius:11px;background:#fff0f0;
      color:#7a1f1f;border:1px solid #efc8c8;font-weight:700
    }
    .aside-title{font-size:1.4rem}
    .aside-list{padding-left:19px;margin:14px 0 0}
    .aside-list li{margin:9px 0}
    .mini-note{background:var(--warm);border:1px solid #efdfaa;padding:13px;border-radius:12px;margin-top:18px;font-size:.9rem}
    #result{display:none;margin-top:30px;scroll-margin-top:82px}
    .result-hero{
      background:linear-gradient(135deg,var(--brand-dark),#146a50);
      color:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)
    }
    .result-label{opacity:.82;font-weight:800}
    .big-number{font-size:clamp(2.6rem,8vw,5.3rem);font-weight:950;letter-spacing:-.06em;line-height:1;margin:10px 0 8px}
    .monthly{font-size:1.12rem;font-weight:800}
    .result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}
    .metric{background:rgba(255,255,255,.10);padding:13px;border-radius:13px}
    .metric small{display:block;opacity:.78}
    .metric strong{display:block;font-size:1.12rem;margin-top:3px}
    .results-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
    .flat-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}
    .calc-row{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px dashed var(--line)}
    .calc-row:last-child{border-bottom:0}
    .calc-row span:last-child{text-align:right;font-weight:800}
    .scenario{padding:13px 0;border-bottom:1px solid var(--line)}
    .scenario:last-child{border-bottom:0}
    .scenario-head{display:flex;justify-content:space-between;gap:12px}
    .scenario strong:last-child{white-space:nowrap;color:var(--brand-dark)}
    .bar{height:8px;background:#e9efec;border-radius:99px;margin-top:8px;overflow:hidden}
    .bar > i{display:block;height:100%;background:var(--brand);border-radius:99px}
    .route{counter-reset:route}
    .action{
      position:relative;padding:16px 16px 16px 54px;background:#fbfcfb;border:1px solid var(--line);
      border-radius:14px;margin:10px 0
    }
    .action:before{
      counter-increment:route;content:counter(route);position:absolute;left:15px;top:16px;width:27px;height:27px;
      border-radius:50%;background:var(--brand-dark);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900
    }
    .action p{margin:4px 0 0;color:#4f6259}
    .badge{
      display:inline-block;border-radius:999px;padding:5px 9px;font-weight:900;font-size:.8rem;
      background:var(--soft);color:var(--brand-dark);margin-bottom:8px
    }
    details{border:1px solid var(--line);border-radius:13px;padding:14px 16px;background:#fff;margin:9px 0}
    summary{font-weight:850;cursor:pointer}
    details p{color:#4f6259}
    .content{padding:70px 0}
    .content-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .source-list li{margin:8px 0}
    footer{border-top:1px solid var(--line);padding:34px 0 50px;color:var(--muted);font-size:.9rem}
    .fine{font-size:.82rem;color:var(--muted)}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
    @media(max-width:820px){
      .grid,.results-layout,.content-grid{grid-template-columns:1fr}
      .sticky{position:static}
      .result-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:560px){
      .wrap{padding:0 15px}.hero{padding-top:42px}.card{padding:19px}
      .form-grid,.check-grid{grid-template-columns:1fr}
      .result-grid{grid-template-columns:1fr 1fr}
      .nav .cta{display:none}
    }
  
    .best-step-card{
      border:2px solid #cfe5d9;
      background:linear-gradient(180deg,#f8fcfa,#ffffff);
    }
    .best-step-card h2{margin-bottom:8px}
    .result-hero .metric{min-width:0}
    .metric strong{word-break:break-word}
    @media(max-width:560px){
      .result-hero{padding:22px 18px}
      .big-number{font-size:clamp(2.2rem,13vw,3.6rem)}
      .result-grid{grid-template-columns:1fr}
      .metric{display:flex;justify-content:space-between;gap:12px;align-items:baseline}
      .metric small,.metric strong{display:block}
      .calc-row{align-items:flex-start}
      .calc-row span:first-child{max-width:62%}
      .calc-row span:last-child{max-width:38%}
      .scenario-head{flex-direction:column;gap:4px}
      .scenario strong:last-child{white-space:normal}
      .action{padding-left:50px}
      .flat-card{padding:17px}
    }


    /* V2.5 visual system */
    .logo{display:inline-flex;align-items:center;gap:9px;font-size:1.02rem}
    .brand-mark{width:31px;height:31px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand-dark);color:#fff;font-size:16px;box-shadow:0 5px 16px rgba(13,59,46,.16)}
    .hero{padding:48px 0 28px}
    .hero h1{font-size:clamp(2.35rem,6vw,4.5rem);max-width:850px;margin:14px 0 14px}
    .hero .lead{max-width:790px;margin-bottom:0}
    .hero-actions{margin-top:22px}
    .hero-cta{display:inline-flex;align-items:center;gap:10px;background:var(--brand-dark);color:#fff;text-decoration:none;font-weight:900;padding:13px 17px;border-radius:12px;box-shadow:0 8px 24px rgba(13,59,46,.18)}
    .mobile-promise{display:none;margin-top:16px;padding:12px 14px;border-radius:12px;background:#fff;border:1px solid var(--line);font-size:.88rem;color:#42534b}
    .card{padding:22px}
    .form-section{padding:21px;background:#f8fbf9;border:1px solid #e1e9e4;border-radius:16px;margin-top:14px}
    .form-section + .form-section{margin-top:14px}
    .form-section:nth-of-type(2){background:#fbfcfb}
    .form-section:nth-of-type(3){background:#f5faf7}
    .section-title{align-items:flex-start;margin:0 0 10px}
    .section-title h2{font-size:1.55rem;margin:1px 0 3px}
    .section-title .hint{margin:0}
    .step{min-width:32px;height:32px;margin-top:0}
    .field{margin-top:12px}
    .example-note{display:flex;gap:11px;align-items:flex-start;background:#fff8e5;border:1px solid #eddca4;border-radius:13px;padding:11px 13px;margin-bottom:14px;color:#5b4b1a}
    .example-note>span{width:25px;height:25px;border-radius:8px;background:#f3e4aa;display:flex;align-items:center;justify-content:center;font-weight:900;flex:none}
    .example-note strong,.example-note small{display:block}.example-note small{margin-top:1px;color:#75652e}
    .check-grid{gap:11px}
    .check{position:relative;min-height:62px;align-items:center;gap:11px;padding:13px 42px 13px 13px;background:#fff;cursor:pointer;transition:.15s ease;border-width:1.5px}
    .check:hover{border-color:#a9c8b8;transform:translateY(-1px)}
    .check input{position:absolute;opacity:0;pointer-events:none}
    .check-icon{font-size:1.25rem;width:30px;height:30px;border-radius:9px;background:#eef5f1;display:inline-flex;align-items:center;justify-content:center;flex:none}
    .check-state{position:absolute;right:13px;top:50%;transform:translateY(-50%);width:24px;height:24px;border:1.5px solid #b8c8c0;border-radius:50%;display:flex;align-items:center;justify-content:center;color:transparent;font-weight:900;background:#fff}
    .check:has(input:checked){border-color:var(--brand);background:#eef8f3;box-shadow:0 0 0 3px rgba(13,107,80,.08)}
    .check:has(input:checked) .check-state{background:var(--brand);border-color:var(--brand);color:#fff}
    .check:has(input:focus-visible){outline:3px solid rgba(13,107,80,.16);outline-offset:2px}
    .primary{margin-top:16px;display:flex;align-items:center;justify-content:center;gap:10px;min-height:52px;font-size:1rem}
    .benefit-card{padding:24px}
    .aside-title{font-size:1.6rem;line-height:1.15}
    .aside-list{list-style:none;padding:0;margin:16px 0 0}
    .aside-list li{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:center;margin:12px 0}
    .aside-list li strong{width:32px;height:32px;border-radius:9px;background:var(--soft);display:flex;align-items:center;justify-content:center;color:var(--brand-dark)}
    .result-topline{display:flex;align-items:center;justify-content:space-between;gap:14px}
    .result-chip{display:inline-flex;padding:6px 9px;border-radius:999px;background:rgba(255,255,255,.12);font-size:.78rem;font-weight:850;white-space:nowrap}
    .best-step-card{position:relative;margin-top:18px;padding:25px 25px 25px 88px;background:linear-gradient(135deg,#eaf7f0,#fff);border-color:#b9ddca;box-shadow:0 10px 26px rgba(13,107,80,.08)}
    .recommendation-number{position:absolute;left:24px;top:26px;width:45px;height:45px;border-radius:14px;background:var(--brand-dark);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.35rem;font-weight:950;box-shadow:0 7px 18px rgba(13,59,46,.18)}
    .recommendation-label{text-transform:uppercase;letter-spacing:.09em;font-size:.72rem;font-weight:950;color:var(--brand);display:block;margin-bottom:7px}
    .best-step-card h2{font-size:1.8rem}
    .best-step-card p{margin-bottom:0;color:#43584e}
    .results-layout .flat-card h2{font-size:1.55rem}
    .scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
    .scenario{padding:14px;border:1px solid var(--line);border-radius:13px;background:#fbfcfb;min-width:0}
    .scenario:last-child{border-bottom:1px solid var(--line)}
    .scenario-head{display:block}
    .scenario-head strong:first-child{display:block;font-size:.87rem;line-height:1.25;color:#42554c}
    .scenario-head strong:last-child{display:block;font-size:1.55rem;line-height:1.05;margin-top:9px;color:var(--brand-dark)}
    .scenario .fine{margin-top:8px;line-height:1.35}
    .scenario .bar{margin-top:12px}
    .battery-card{background:linear-gradient(180deg,#fbfcfb,#fff)}
    .battery-potential{padding:16px;border-radius:14px;background:var(--brand-dark);color:#fff;margin:16px 0 12px}
    .battery-potential small{display:block;opacity:.78;font-weight:800}
    .battery-potential strong{display:block;font-size:2.25rem;letter-spacing:-.04em;margin-top:3px}
    .battery-detail{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:11px 0 13px;border-bottom:1px solid var(--line);font-size:.9rem}
    .battery-detail strong{text-align:right;white-space:nowrap}
    .version{font-size:.78rem;font-weight:600;color:#87968f}
    @media(max-width:820px){
      .hero{padding:38px 0 24px}
      .hero-actions{display:none}
      .mobile-promise{display:block}
      .benefit-card{display:none}
      .grid{display:block}
      .scenario-grid{grid-template-columns:1fr}
    }
    @media(max-width:560px){
      .hero h1{font-size:clamp(2rem,10.5vw,3rem)}
      .hero .lead{font-size:1rem}
      .form-section{padding:16px;margin-top:11px}
      .section-title h2{font-size:1.35rem}
      .check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .check{min-width:0;min-height:74px;display:grid;grid-template-columns:30px 1fr;padding:11px 32px 11px 10px;line-height:1.2;font-size:.86rem}
      .check-state{right:9px;width:21px;height:21px}
      .best-step-card{padding:20px 18px 20px 72px}
      .recommendation-number{left:17px;top:20px;width:40px;height:40px}
      .best-step-card h2{font-size:1.5rem}
      #result{scroll-margin-top:72px}
      .result-topline{align-items:flex-start;flex-direction:column;gap:8px}
      .result-chip{align-self:flex-start}
      .results-layout .flat-card h2{font-size:1.4rem}
      .battery-potential strong{font-size:1.9rem}
    }

/* Shared site navigation */
.site-nav{height:70px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px}
.site-links{display:flex;align-items:center;justify-content:center;gap:6px}
.site-links a{color:#40544b;text-decoration:none;font-weight:800;font-size:.94rem;padding:9px 11px;border-radius:10px}
.site-links a:hover,.site-links a[aria-current="page"]{background:#edf5f1;color:var(--brand-dark)}
.site-nav .nav-cta{background:var(--brand-dark);color:#fff;text-decoration:none;font-weight:900;padding:10px 14px;border-radius:11px;white-space:nowrap}
.mobile-menu{display:none;position:relative;margin:0}
.mobile-menu summary{list-style:none;cursor:pointer;background:#edf5f1;border-radius:10px;padding:9px 11px;font-weight:900;color:var(--brand-dark)}
.mobile-menu summary::-webkit-details-marker{display:none}
.mobile-menu[open] .mobile-menu-panel{display:grid}
.mobile-menu-panel{display:none;position:absolute;right:0;top:46px;width:min(280px,86vw);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:8px;z-index:30}
.mobile-menu-panel a{padding:11px 12px;border-radius:9px;text-decoration:none;font-weight:800;color:var(--brand-dark)}
.mobile-menu-panel a:hover{background:#f2f7f4}

/* Shared footer */
.site-footer{border-top:1px solid var(--line);background:#f7faf8;padding:46px 0 54px;color:#53665d}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:36px}
.footer-brand{max-width:460px}
.footer-brand .logo{display:inline-flex;margin-bottom:10px}
.footer-brand p{margin:0;color:#607168}
.footer-col strong{display:block;color:var(--ink);margin-bottom:10px}
.footer-col a{display:block;color:#53665d;text-decoration:none;padding:4px 0}
.footer-col a:hover{text-decoration:underline}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:32px;padding-top:20px;border-top:1px solid var(--line);font-size:.84rem;color:#73827b}

/* SEO article */
.article-hero{padding:58px 0 34px;background:linear-gradient(180deg,#eff7f2 0,#f8fbf9 100%);border-bottom:1px solid #e3ece7}
.breadcrumb{font-size:.88rem;color:#64766d;margin-bottom:20px}
.breadcrumb a{color:inherit;text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.article-hero h1{font-size:clamp(2.25rem,6vw,4.55rem);max-width:900px;margin:15px 0 18px}
.article-hero .lead{max-width:820px}
.article-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:21px;color:#52665d;font-size:.88rem}
.article-meta span{background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:999px}
.article-shell{display:grid;grid-template-columns:minmax(0,730px) minmax(240px,1fr);gap:46px;align-items:start;padding-top:46px;padding-bottom:72px}
.article-body{min-width:0}
.article-body h2{font-size:clamp(1.6rem,3vw,2.15rem);margin-top:48px;margin-bottom:14px}
.article-body h3{font-size:1.22rem;margin-top:28px}
.article-body p,.article-body li{font-size:1.02rem;line-height:1.72;color:#34483f}
.article-body ul,.article-body ol{padding-left:23px}
.article-body li{margin:8px 0}
.article-body h2:first-child{margin-top:0}
.article-aside{position:sticky;top:94px}
.toc{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 10px 30px rgba(19,35,29,.05)}
.toc strong{display:block;margin-bottom:8px}
.toc a{display:block;text-decoration:none;color:#53665d;padding:6px 0;font-size:.91rem}
.toc a:hover{color:var(--brand-dark);text-decoration:underline}
.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:25px 0 34px}
.summary-card{border:1px solid var(--line);border-radius:16px;padding:20px;background:#fff}
.summary-card.after{background:#edf7f2;border-color:#cae2d6}
.summary-card small{display:block;text-transform:uppercase;letter-spacing:.08em;font-weight:900;font-size:.73rem;color:#6b7d74;margin-bottom:8px}
.summary-card strong{display:block;font-size:1.2rem;color:var(--brand-dark);margin-bottom:8px}
.summary-card p{margin:0;font-size:.94rem;line-height:1.55}
.key-answer{background:#f2f8f5;border-left:5px solid var(--brand);padding:18px 20px;border-radius:0 14px 14px 0;margin:22px 0}
.key-answer strong{color:var(--brand-dark)}
.inline-cta{background:linear-gradient(135deg,var(--brand-dark),#146a50);color:#fff;border-radius:18px;padding:24px;margin:32px 0;display:flex;justify-content:space-between;align-items:center;gap:24px}
.inline-cta h3{margin:0 0 6px;color:#fff}
.inline-cta p{margin:0;color:rgba(255,255,255,.82);font-size:.94rem}
.inline-cta a{background:#fff;color:var(--brand-dark);font-weight:900;text-decoration:none;padding:11px 14px;border-radius:11px;white-space:nowrap}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;margin:22px 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.compare-table th,.compare-table td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.compare-table th{background:#f3f7f5;color:var(--ink);font-size:.9rem}
.compare-table tr:last-child td{border-bottom:0}
.example-box{border:1px solid #e8dab0;background:#fff9e9;border-radius:15px;padding:19px;margin:24px 0}
.example-box strong{color:#6a5315}
.source-box{border-top:1px solid var(--line);margin-top:50px;padding-top:25px}
.source-box ul{padding-left:20px}
.next-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}
.next-card{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}
.next-card strong{display:block;color:var(--brand-dark);margin-bottom:5px}
.next-card p{font-size:.89rem;line-height:1.5;margin:0}
.article-faq details{margin:10px 0}
.read-more-home{margin-top:32px;background:#f2f8f5;border:1px solid #d4e8dd;border-radius:18px;padding:22px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.read-more-home h3{margin:0 0 6px}
.read-more-home p{margin:0;color:#53665d}
.read-more-home a{white-space:nowrap;background:var(--brand-dark);color:#fff;text-decoration:none;font-weight:900;padding:10px 13px;border-radius:10px}

@media(max-width:820px){
  .site-nav{grid-template-columns:1fr auto;height:64px;gap:12px}
  .site-links,.site-nav>.nav-cta{display:none}
  .mobile-menu{display:block}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .article-shell{grid-template-columns:1fr;padding-top:30px}
  .article-aside{display:none}
  .next-steps{grid-template-columns:1fr}
}
@media(max-width:560px){
  .article-hero{padding:38px 0 26px}
  .summary-grid{grid-template-columns:1fr}
  .inline-cta,.read-more-home{align-items:flex-start;flex-direction:column}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .footer-bottom{flex-direction:column}
  .compare-table{font-size:.9rem}
  .compare-table th,.compare-table td{padding:10px}
}


/* V4 content-cluster additions */
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:24px 0 6px}
.topic-card{display:block;text-decoration:none;border:1px solid var(--line);border-radius:16px;background:#fff;padding:20px;box-shadow:0 8px 24px rgba(19,35,29,.04);transition:.15s ease}
.topic-card:hover{transform:translateY(-2px);border-color:#b9d5c7;box-shadow:0 12px 28px rgba(19,35,29,.07)}
.topic-card .topic-icon{width:40px;height:40px;border-radius:12px;background:var(--soft);display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-bottom:14px}
.topic-card strong{display:block;color:var(--brand-dark);font-size:1.08rem;margin-bottom:5px}
.topic-card span{display:block;color:#53665d;line-height:1.5;font-size:.93rem}
.mini-calc{border:1px solid #cfe4d9;background:linear-gradient(180deg,#f2faf6,#fff);border-radius:18px;padding:22px;margin:24px 0}
.mini-calc h3{margin-top:0;font-size:1.3rem}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.mini-calc label{font-size:.9rem}
.mini-calc input{background:#fff}
.mini-result{margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.mini-stat{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px}
.mini-stat small{display:block;color:#6d7c75;font-weight:750;margin-bottom:4px}
.mini-stat strong{display:block;color:var(--brand-dark);font-size:1.3rem}
.callout-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}
.callout{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}
.callout strong{display:block;color:var(--brand-dark);margin-bottom:5px}
.callout p{margin:0;font-size:.92rem;line-height:1.55}
.tip-table{width:100%;border-collapse:separate;border-spacing:0;margin:22px 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.tip-table th,.tip-table td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.tip-table th{background:#f3f7f5;font-size:.9rem}
.tip-table tr:last-child td{border-bottom:0}
.tip-table .impact{font-weight:850;color:var(--brand-dark)}
.article-kicker{font-weight:850;color:var(--brand);margin:0 0 10px}
@media(max-width:820px){
  .topic-grid,.mini-grid,.mini-result,.callout-list{grid-template-columns:1fr}
}

/* V5 audit & battery page */
.decision-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px;margin:20px 0}
.decision-card{border:1px solid var(--line);border-radius:15px;padding:17px;background:#fff}
.decision-card .decision-icon{font-size:1.35rem;margin-bottom:7px}
.decision-card strong{display:block;color:var(--brand-dark);margin-bottom:5px}
.decision-card p{margin:0;color:#53665d;font-size:.93rem;line-height:1.55}
.verdict{border:2px solid #cfe5d9;background:linear-gradient(180deg,#f2faf6,#fff);border-radius:18px;padding:22px;margin:24px 0}
.verdict .verdict-label{display:inline-block;background:#dff1e7;color:var(--brand-dark);font-weight:900;border-radius:999px;padding:6px 10px;font-size:.82rem;margin-bottom:9px}
.verdict h2{margin-bottom:8px}
.buying-check{display:grid;gap:9px;margin:18px 0}
.buying-row{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start;border:1px solid var(--line);border-radius:13px;padding:13px;background:#fff}
.buying-row b{width:27px;height:27px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--soft);color:var(--brand-dark)}
.data-box{background:#f7faf8;border:1px solid var(--line);border-radius:16px;padding:20px;margin:22px 0}
.data-box ul{margin-bottom:0}
.warning-box{background:#fff8e4;border:1px solid #ead89b;border-radius:16px;padding:18px;margin:22px 0}
.warning-box strong{color:#604b0d}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;margin:20px 0}
.compare-table th,.compare-table td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.compare-table th{background:#f2f7f4;font-size:.9rem}
.compare-table tr:last-child td{border-bottom:0}
.compare-table td:first-child{font-weight:800;color:var(--brand-dark)}
.site-links{min-width:0}
.site-links a{white-space:nowrap}
@media(max-width:1050px){
  .site-nav{gap:16px}
  .site-links a{font-size:.88rem;padding:8px}
  .site-nav .nav-cta{padding:9px 11px;font-size:.9rem}
}
@media(max-width:920px){
  .site-links,.site-nav .nav-cta{display:none}
  .mobile-menu{display:block}
  .site-nav{grid-template-columns:1fr auto}
}
@media(max-width:820px){
  .decision-grid{grid-template-columns:1fr}
  .compare-table{font-size:.92rem}
}


.article-button{
  display:inline-block;
  background:var(--brand-dark);
  color:#fff;
  text-decoration:none;
  font-weight:900;
  padding:12px 15px;
  border-radius:11px;
  margin-top:10px;
  box-shadow:0 8px 22px rgba(13,59,46,.14);
}
.article-button:hover{background:#124b3a}


/* V5.1 - richer household profile */
.profile-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:11px;
  margin-top:14px;
}
.profile-check{
  min-height:78px;
  align-items:center;
}
.profile-check > span:nth-of-type(2){
  display:flex;
  flex-direction:column;
  gap:3px;
  min-width:0;
}
.profile-check strong{
  display:block;
  color:var(--ink);
  font-size:.96rem;
  line-height:1.2;
}
.profile-check small{
  display:block;
  color:var(--muted);
  font-size:.78rem;
  font-weight:550;
  line-height:1.35;
}
.conditional-panel{
  margin-top:12px;
  padding:15px;
  border:1px solid #cfe3d9;
  border-radius:14px;
  background:#f5faf7;
}
.conditional-panel[hidden]{display:none}
.conditional-panel label,
.shift-question label{font-weight:800}
.conditional-panel select,
.shift-question select{margin-top:7px}
.shift-question{
  margin-top:15px;
  padding:17px;
  border:1px solid var(--line);
  border-radius:15px;
  background:#fbfcfb;
}
@media(max-width:620px){
  .profile-grid{grid-template-columns:1fr}
  .profile-check{
    min-height:70px;
    grid-template-columns:30px 1fr;
    font-size:.9rem;
  }
  .profile-check small{font-size:.76rem}
}

/* V5.2 - desktop spacing refinement for calculator */
@media(min-width:821px){
  #calculator .card{padding:34px;}
  #calculator .form-section{padding:26px 0 32px;}
  #calculator .form-section + .form-section{margin-top:8px;}
  #calculator .section-title{margin-bottom:20px;}
  #calculator .section-title h2{margin-bottom:8px;}
  #calculator .hint{margin-top:7px;margin-bottom:8px;line-height:1.65;max-width:720px;}
  #calculator .form-grid{gap:24px 26px;}
  #calculator .field{margin-top:22px;}
  #calculator label{line-height:1.5;}
  #calculator input,#calculator select{margin-top:10px;padding:15px 14px;}
  #calculator .help{margin-top:9px;line-height:1.55;}
  #calculator .divider{margin:32px 0;}
  #calculator .profile-grid{gap:17px 18px;margin-top:22px;}
  #calculator .profile-check{min-height:96px;padding:17px 18px;gap:13px;}
  #calculator .profile-check strong{font-size:1rem;line-height:1.35;margin-bottom:5px;}
  #calculator .profile-check small{font-size:.82rem;line-height:1.55;}
  #calculator .conditional-panel{margin-top:20px;padding:19px;}
  #calculator .shift-question{margin-top:22px;padding:21px;}
  #calculator .primary{margin-top:28px;padding:17px 21px;}
  #calculator .error{margin-top:22px;}
}


/* V5.3 - voorkom horizontale pagina-scroll door brede tabellen op mobiel */
@media(max-width:820px){
  .compare-table,
  .tip-table{
    display:block;
    width:100%;
    max-width:100%;
    overflow-x:auto;
    overscroll-behavior-inline:contain;
    -webkit-overflow-scrolling:touch;
  }
}


/* V5.5 - contextuele interne links */
.next-link-block{
  margin:30px 0;
  padding:20px;
  border:1px solid var(--line);
  border-radius:16px;
  background:#f7faf8;
}
.next-link-block h3{
  margin:0 0 10px;
  color:var(--brand-dark);
  font-size:1.15rem;
}
.next-link-block p{
  margin:0 0 12px;
  color:#53665d;
  line-height:1.55;
}
.next-link-list{
  display:grid;
  gap:9px;
}
.next-link-list a{
  display:block;
  text-decoration:none;
  font-weight:850;
  color:var(--brand-dark);
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 14px;
}
.next-link-list a:hover{
  border-color:#b9d5c7;
  transform:translateY(-1px);
}

/* V6.0 - three SEO pages */
@media(min-width:821px){.topic-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
@media(max-width:820px){.topic-grid{grid-template-columns:1fr;}}


/* V6.2 - trust & credibility */
.source-inline{
  display:block;
  margin-top:7px;
  font-size:.8rem;
  color:#687971;
  line-height:1.45;
}
.source-inline a{
  color:#405c50;
  font-weight:750;
  text-decoration:underline;
  text-underline-offset:2px;
}
.trust-line{
  margin-top:16px;
  max-width:760px;
  font-size:.9rem;
  color:#5c6d65;
  line-height:1.55;
}
.trust-line a{font-weight:800;color:var(--brand-dark)}
.method-note{
  margin:18px 0 0;
  padding:15px 17px;
  border-left:3px solid #7ca693;
  background:#f7faf8;
  color:#40534a;
  line-height:1.6;
  border-radius:0 10px 10px 0;
}
.formula-box{
  margin:20px 0;
  padding:20px;
  border:1px solid var(--line);
  background:#f7faf8;
  border-radius:12px;
}
.formula-box code{
  display:block;
  white-space:normal;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.95rem;
  line-height:1.7;
  color:#163c2f;
}
.assumption-table{
  width:100%;
  border-collapse:collapse;
  margin:20px 0;
  background:#fff;
}
.assumption-table th,.assumption-table td{
  text-align:left;
  vertical-align:top;
  padding:13px 14px;
  border-bottom:1px solid var(--line);
}
.assumption-table th{
  background:#f3f7f5;
  color:var(--brand-dark);
  font-size:.9rem;
}
.assumption-table td:first-child{
  font-weight:800;
  color:#263a31;
  width:28%;
}
.version-log{
  margin:18px 0;
  border-top:1px solid var(--line);
}
.version-row{
  display:grid;
  grid-template-columns:100px 1fr;
  gap:14px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
}
.version-row time{
  font-size:.84rem;
  color:#687971;
  font-weight:750;
}
.transparency-box{
  padding:19px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  margin:24px 0;
}
.transparency-box h3{margin-top:0}
.method-links{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:15px;
}
.method-links a{
  text-decoration:none;
  color:var(--brand-dark);
  font-weight:850;
  border:1px solid #cbdcd3;
  background:#fff;
  border-radius:8px;
  padding:9px 11px;
}
.topic-card{
  box-shadow:none;
  border-radius:11px;
}
.topic-card:hover{
  transform:none;
  box-shadow:none;
  border-color:#9fbdae;
}
.topic-card .topic-icon{display:none!important}
.topic-card .topic-type{
  display:block;
  margin-bottom:8px;
  font-size:.72rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  font-weight:850;
  color:#6b7d74;
}
.badge{
  border-radius:5px;
  letter-spacing:.02em;
  text-transform:none;
}
.recommendation-label{
  text-transform:none;
  letter-spacing:0;
  font-size:.82rem;
  font-weight:850;
  color:#52685e;
}
.aside-list li strong{
  border-radius:5px;
}
.article-meta{gap:12px}
.article-meta span{white-space:normal}
@media(max-width:820px){
  .version-row{grid-template-columns:1fr;gap:3px}
  .assumption-table{font-size:.9rem}
  .assumption-table td:first-child{width:auto}
  .method-links{display:grid}
}


/* V6.3 - robuuste headernavigatie */
.site-nav{
  min-width:0;
}

.site-links{
  min-width:0;
  display:flex;
  align-items:center;
  gap:4px;
  flex-wrap:nowrap;
}

.site-links a{
  white-space:nowrap;
  padding:8px 7px;
  font-size:.86rem;
}

.site-nav .nav-cta{
  white-space:nowrap;
  flex:0 0 auto;
}

.logo{
  flex:0 0 auto;
}

/* Schakel op smallere desktops eerder over naar het menu,
   zodat menu-items nooit op elkaar kunnen komen te staan. */
@media(max-width:1180px){
  .site-links,
  .site-nav .nav-cta{
    display:none !important;
  }

  .mobile-menu{
    display:block !important;
  }

  .site-nav{
    grid-template-columns:1fr auto;
    gap:18px;
  }
}

@media(min-width:1181px){
  .mobile-menu{
    display:none !important;
  }
}


/* V6.4 - definitieve desktopheader */
.site-nav.wrap{
  max-width:1280px;
}

.site-nav{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:28px;
  height:72px;
}

.site-links{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-width:0;
}

.site-links > a,
.desktop-more > summary{
  white-space:nowrap;
  color:#40544b;
  text-decoration:none;
  font-weight:800;
  font-size:.92rem;
  padding:9px 10px;
  border-radius:9px;
}

.site-links > a:hover,
.desktop-more > summary:hover{
  background:#edf5f1;
  color:var(--brand-dark);
}

.desktop-more{
  position:relative;
  margin:0;
}

.desktop-more summary{
  list-style:none;
  cursor:pointer;
}

.desktop-more summary::-webkit-details-marker{
  display:none;
}

.desktop-more summary::after{
  content:" ▾";
  font-size:.75em;
}

.desktop-more[open] summary{
  background:#edf5f1;
  color:var(--brand-dark);
}

.desktop-more-panel{
  display:none;
  position:absolute;
  right:0;
  top:44px;
  width:310px;
  padding:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:0 14px 36px rgba(19,35,29,.12);
  z-index:100;
}

.desktop-more[open] .desktop-more-panel{
  display:grid;
}

.desktop-more-panel a{
  display:block;
  padding:11px 12px;
  border-radius:8px;
  text-decoration:none;
  font-size:.88rem;
  line-height:1.35;
  font-weight:750;
  color:var(--brand-dark);
}

.desktop-more-panel a:hover{
  background:#f2f7f4;
}

/* Desktop menu has ample room from 1000px upward.
   Below that we switch completely to the compact menu. */
@media(max-width:999px){
  .site-links,
  .site-nav > .nav-cta,
  .desktop-more{
    display:none !important;
  }

  .mobile-menu{
    display:block !important;
  }

  .site-nav{
    grid-template-columns:minmax(0,1fr) auto;
    gap:16px;
    height:64px;
  }
}

@media(min-width:1000px){
  .mobile-menu{
    display:none !important;
  }

  .site-links{
    display:flex !important;
  }

  .site-nav > .nav-cta{
    display:inline-block !important;
  }

  .desktop-more{
    display:block !important;
  }
}


/* V6.5 - actuele terugleververgoeding vergelijking */
.current-ranking{
  margin:30px 0 34px;
}
.comparison-table-wrap{
  width:100%;
  overflow-x:auto;
  margin:18px 0 8px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
}
.comparison-table{
  width:100%;
  min-width:620px;
  border-collapse:collapse;
}
.comparison-table th,
.comparison-table td{
  padding:13px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.comparison-table th{
  font-size:.82rem;
  color:#52685e;
  background:#f4f8f6;
}
.comparison-table tbody tr:last-child td{
  border-bottom:0;
}
.comparison-table td:last-child,
.comparison-table th:last-child{
  text-align:right;
}