/* ── GOOGLE STYLE — Clean, Simple, White, Roboto ── */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --bg:#f1f3f4;
  --white:#ffffff;
  --border:#dadce0;
  --border2:#bdc1c6;
  --text:#202124;
  --muted:#5f6368;
  --light:#f8f9fa;
  --light2:#e8eaed;
  --accent:#1a73e8;
  --accent-light:#e8f0fe;
  --accent-dark:#1557b0;
  --green:#137333;
  --green-light:#e6f4ea;
  --orange:#e37400;
  --orange-light:#fef7e0;
  --red:#c5221f;
  --red-light:#fce8e6;
  --radius:8px;
  --radius-lg:12px;
  --shadow:0 1px 2px rgba(60,64,67,.3),0 1px 3px rgba(60,64,67,.15);
  --shadow-md:0 1px 3px rgba(60,64,67,.3),0 4px 8px rgba(60,64,67,.15);
}

html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Outfit',sans-serif;line-height:1.5;min-height:100vh;font-size:15px}

.site-nav{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 1px 3px rgba(60,64,67,.15)}
.nav-inner{max-width:1100px;margin:0 auto;padding:.75rem 1.5rem;display:flex;align-items:center;gap:1rem}
.nav-logo{font-family:'Outfit',sans-serif;font-size:1.3rem;font-weight:400;color:var(--text);text-decoration:none;flex-shrink:0}
.nav-logo span{color:var(--accent)}
.nav-search{flex:1;max-width:480px;position:relative}
.nav-search input{width:100%;padding:.55rem 1rem .55rem 2.4rem;border:1px solid var(--border);border-radius:24px;font-family:'Outfit',sans-serif;font-size:.875rem;background:var(--light);outline:none;transition:all .2s;color:var(--text)}
.nav-search input:hover{background:var(--white);box-shadow:var(--shadow)}
.nav-search input:focus{border-color:var(--accent);background:var(--white);box-shadow:0 0 0 2px rgba(26,115,232,.2)}
.nav-search::before{content:"🔍";position:absolute;left:.75rem;top:50%;transform:translateY(-50%);font-size:.75rem;pointer-events:none}
.nav-free{background:var(--green-light);color:var(--green);padding:.3rem .75rem;border-radius:4px;font-size:.75rem;font-weight:500;flex-shrink:0}

.breadcrumb{max-width:1100px;margin:0 auto;padding:.6rem 1.5rem;font-size:.8rem;color:var(--muted)}
.breadcrumb a{color:var(--accent);text-decoration:none}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb span{margin:0 .3rem}

.page-hero{background:var(--white);border-bottom:1px solid var(--border);padding:1.75rem 1.5rem 1.25rem}
.page-hero-inner{max-width:1100px;margin:0 auto}
.page-hero h1{font-family:'Outfit',sans-serif;font-size:clamp(1.4rem,3.5vw,1.9rem);font-weight:400;letter-spacing:-.3px;margin-bottom:.3rem;color:var(--text)}
.page-hero p{color:var(--muted);font-size:.875rem;max-width:560px}

.page-main{max-width:1100px;margin:0 auto;padding:1.25rem 1.5rem 4rem;display:grid;grid-template-columns:1fr 300px;gap:1.5rem}
@media(max-width:900px){.page-main{grid-template-columns:1fr}}

.calc-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;margin-bottom:1.25rem}
.calc-card-header{padding:1rem 1.5rem .75rem;border-bottom:1px solid var(--border)}
.calc-card-title{font-family:'Outfit',sans-serif;font-size:1rem;font-weight:500;color:var(--text)}
.calc-card-body{padding:1.25rem 1.5rem}

.tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:1.25rem}
.tab-btn{padding:.6rem 1.1rem;font-family:'Outfit',sans-serif;font-size:.85rem;font-weight:500;cursor:pointer;border:none;border-bottom:2px solid transparent;background:transparent;color:var(--muted);transition:all .15s;margin-bottom:-1px}
.tab-btn:hover{color:var(--accent);background:rgba(26,115,232,.04)}
.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent)}
.tab-pane{display:none}
.tab-pane.active{display:block}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1rem}
@media(max-width:500px){.form-grid{grid-template-columns:1fr}}
.form-group{display:flex;flex-direction:column;gap:.3rem}
.form-group label{font-size:.75rem;font-weight:500;color:var(--muted);letter-spacing:.3px}
.form-group input,.form-group select{padding:.6rem .75rem;border:1px solid var(--border);border-radius:4px;font-family:'Outfit',sans-serif;font-size:.875rem;color:var(--text);background:var(--white);outline:none;transition:border .15s;-webkit-appearance:none;appearance:none}
.form-group input:hover,.form-group select:hover{border-color:var(--text)}
.form-group input:focus,.form-group select:focus{border-color:var(--accent);border-width:2px}
.form-group .hint{font-size:.78rem;color:var(--muted)}
input[type=range]{accent-color:var(--accent);width:100%;cursor:pointer}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.6rem 1.5rem;border-radius:4px;font-family:'Outfit',sans-serif;font-size:.875rem;font-weight:500;cursor:pointer;border:none;transition:all .15s;white-space:nowrap;text-decoration:none;letter-spacing:.25px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 1px 2px rgba(0,0,0,.2)}
.btn-primary:hover{background:var(--accent-dark);box-shadow:var(--shadow)}
.btn-primary:disabled{background:var(--light2);color:var(--muted);cursor:not-allowed;box-shadow:none}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:#0d652d}
.btn-outline{background:transparent;color:var(--accent);border:1px solid var(--border)}
.btn-outline:hover{background:var(--accent-light);border-color:var(--accent)}
.btn-full{width:100%}
.btn-sm{padding:.4rem 1rem;font-size:.8rem}

/* ── RESULT BOXES — Clean Google numbers ── */
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;margin-top:1.25rem}
@media(max-width:500px){.result-grid{grid-template-columns:1fr 1fr}}
.result-cell{background:var(--light);border:1px solid var(--border);border-radius:var(--radius);padding:1.1rem;text-align:center}
.result-cell.highlight{background:var(--accent-light);border-color:#aecbfa}
.result-cell.green{background:var(--green-light);border-color:#ceead6}
.result-cell.red{background:var(--red-light);border-color:#f5c6c5}

.result-val{
  font-family:'Outfit',sans-serif;
  font-size:1.9rem;
  font-weight:600;
  color:var(--text);
  letter-spacing:-.5px;
  line-height:1.2;
}
.result-cell.highlight .result-val{color:var(--accent);font-weight:600}
.result-cell.green .result-val{color:var(--green);font-weight:600}
.result-cell.red .result-val{color:var(--red);font-weight:600}
.result-lbl{font-size:.78rem;color:var(--muted);margin-top:.3rem;font-weight:400;letter-spacing:.2px}

.data-table{width:100%;border-collapse:collapse;font-size:.83rem;margin-top:.75rem}
.data-table th{background:var(--light);padding:.55rem .75rem;text-align:left;font-weight:500;font-size:.75rem;color:var(--muted);border-bottom:2px solid var(--border);letter-spacing:.3px}
.data-table td{padding:.5rem .75rem;border-bottom:1px solid var(--border);color:var(--text)}
.data-table tr:hover td{background:#f8f9fa}
.data-table tr.highlight-row td{background:var(--accent-light)}
.table-wrap{max-height:320px;overflow-y:auto;border:1px solid var(--border);border-radius:var(--radius)}

.prog-bar{width:100%;height:4px;background:var(--light2);border-radius:2px;overflow:hidden;margin:.6rem 0}
.prog-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .4s}

.seo-article{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:1.25rem;box-shadow:var(--shadow)}
.seo-article h2{font-family:'Outfit',sans-serif;font-size:1.05rem;font-weight:500;color:var(--text);margin:1.4rem 0 .5rem}
.seo-article h2:first-child{margin-top:0}
.seo-article h3{font-size:.95rem;font-weight:500;color:var(--text);margin:1.1rem 0 .35rem}
.seo-article p{color:#3c4043;font-size:.875rem;line-height:1.7;margin-bottom:.8rem}
.seo-article ul,.seo-article ol{color:#3c4043;font-size:.875rem;line-height:1.7;padding-left:1.4rem;margin-bottom:.8rem}
.seo-article li{margin-bottom:.25rem}
.seo-article .formula-box{background:var(--light);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:4px;padding:.85rem 1.1rem;font-family:monospace;font-size:.82rem;color:var(--text);margin:1rem 0}
.seo-article strong{font-weight:500}
.seo-article a{color:var(--accent);text-decoration:none}
.seo-article a:hover{text-decoration:underline}

.faq-section{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.25rem 1.5rem;margin-bottom:1.25rem;box-shadow:var(--shadow)}
.faq-title{font-size:1rem;font-weight:500;margin-bottom:.75rem;color:var(--text)}
.faq-item{border-bottom:1px solid var(--border);padding:.75rem 0}
.faq-item:last-child{border-bottom:none;padding-bottom:0}
.faq-q{font-size:.875rem;font-weight:500;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:.5rem}
.faq-q::after{content:"▾";color:var(--muted);font-size:.8rem;flex-shrink:0;transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(180deg)}
.faq-a{font-size:.84rem;color:var(--muted);line-height:1.65;margin-top:.5rem;display:none}
.faq-item.open .faq-a{display:block}

.related-section{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.1rem 1.25rem;margin-bottom:1.25rem;box-shadow:var(--shadow)}
.related-title{font-size:.75rem;font-weight:500;color:var(--muted);margin-bottom:.75rem;letter-spacing:.3px;text-transform:uppercase}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:.4rem}
.related-card{display:flex;align-items:center;gap:.5rem;padding:.5rem .7rem;background:var(--light);border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text);transition:all .15s;font-size:.82rem}
.related-card:hover{background:var(--accent-light);border-color:#aecbfa;color:var(--accent)}
.related-icon{font-size:.9rem}

.sidebar-ad{background:var(--white);border:1px dashed var(--border2);border-radius:var(--radius-lg);padding:1rem;text-align:center;margin-bottom:1rem}
.sidebar-ad p{font-size:.78rem;color:var(--muted);margin-top:.25rem}
.sidebar-ad strong{font-size:.62rem;text-transform:uppercase;letter-spacing:.08em;color:#9aa0a6}
.sidebar-box{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1rem 1.1rem;margin-bottom:1rem;box-shadow:var(--shadow)}
.sidebar-box-title{font-size:.75rem;font-weight:500;color:var(--muted);margin-bottom:.65rem;letter-spacing:.3px;text-transform:uppercase}
.quick-link{display:flex;align-items:center;gap:.5rem;padding:.4rem .2rem;border-bottom:1px solid var(--border);font-size:.83rem;color:var(--text);text-decoration:none;transition:color .15s}
.quick-link:last-child{border-bottom:none}
.quick-link:hover{color:var(--accent)}
.quick-link-icon{font-size:.85rem}

.site-footer{background:var(--white);border-top:1px solid var(--border);padding:1.5rem;margin-top:1.5rem}
.footer-inner{max-width:1100px;margin:0 auto;text-align:center}
.footer-links{display:flex;gap:1.25rem;justify-content:center;flex-wrap:wrap;margin-bottom:.5rem}
.footer-links a{color:var(--muted);text-decoration:none;font-size:.8rem}
.footer-links a:hover{color:var(--accent);text-decoration:underline}
.footer-copy{font-size:.76rem;color:var(--muted)}

.ad-banner{background:var(--white);border:1px dashed var(--border);border-radius:var(--radius);padding:.875rem;text-align:center;margin:1rem 0}
.ad-banner p{font-size:.78rem;color:var(--muted);margin-top:.2rem}
.ad-banner strong{font-size:.62rem;text-transform:uppercase;letter-spacing:.08em;color:#9aa0a6}

.copy-btn{display:inline-flex;align-items:center;gap:.3rem;padding:.35rem .7rem;border-radius:4px;background:var(--light);border:1px solid var(--border);font-size:.75rem;font-weight:500;cursor:pointer;color:var(--muted);transition:all .15s;font-family:'Outfit',sans-serif}
.copy-btn:hover{background:var(--accent-light);color:var(--accent);border-color:#aecbfa}
.copy-btn.copied{background:var(--green-light);color:var(--green);border-color:#ceead6}

.stat-pills{display:flex;flex-wrap:wrap;gap:.4rem;margin:.6rem 0}
.spill{background:var(--light);border:1px solid var(--border);border-radius:4px;padding:.3rem .6rem;font-size:.78rem;color:var(--text)}
.spill b{color:var(--accent)}
.info-box{background:var(--accent-light);border:1px solid #aecbfa;border-radius:4px;padding:.75rem 1rem;font-size:.84rem;color:#174ea6;margin:.75rem 0}
.warn-box{background:var(--orange-light);border:1px solid #fcd274;border-radius:4px;padding:.75rem 1rem;font-size:.84rem;color:#7b4f12;margin:.75rem 0}

@media(max-width:768px){
  .page-main{padding:1rem 1rem 3rem}
  .result-grid{grid-template-columns:1fr 1fr}
  .seo-article{padding:1.1rem}
  .calc-card-body{padding:1rem 1.1rem}
  .result-val{font-size:1.4rem}
}