:root{
  --bg:#f4f6f8;--surface:#fff;--surface-alt:#f8fafb;--ink:#17212b;--muted:#697582;
  --line:#dfe4e8;--brand:#e85d04;--brand-hover:#c94e03;--navy:#1d252d;--navy2:#26313b;
  --green:#087f5b;--green-bg:#e8f7f1;--max:1200px;--radius:14px;
  --shadow:0 14px 38px rgba(23,33,43,.09)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;line-height:1.55}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.container{width:min(92%,var(--max));margin-inline:auto}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-size:21px;font-weight:950;letter-spacing:-.8px}
.logo span{color:var(--brand)}
nav{display:flex;align-items:center;gap:24px;color:#4d5964;font-size:14px;font-weight:750}
nav a:hover{color:var(--brand)}
nav a:last-child{background:var(--navy);color:#fff;padding:9px 13px;border-radius:8px}
nav a:last-child:hover{background:#10161b;color:#fff}

/* Homepage hero */
.hero-pro{background:var(--navy);color:#fff;padding:72px 0 68px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(400px,.98fr);align-items:center;gap:62px}
.hero-copy{max-width:680px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid #46515c;background:#27313a;color:#d8dee3;border-radius:7px;padding:7px 10px;font-size:11px;font-weight:850;letter-spacing:.5px}
.status-dot{width:7px;height:7px;border-radius:50%;background:#38c58b;box-shadow:0 0 0 4px rgba(56,197,139,.12)}
.hero-pro h1{font-size:clamp(44px,6vw,70px);line-height:.99;letter-spacing:-3.6px;margin:18px 0 20px;max-width:700px}
.hero-pro p{margin:0;max-width:690px;color:#bdc7cf;font-size:18px;line-height:1.65}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 17px;border-radius:9px;border:1px solid transparent;font-size:14px;font-weight:850;cursor:pointer;transition:.16s ease}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{background:var(--brand-hover)}
.btn.secondary{background:#2a343d;border-color:#4b5660;color:#fff}.btn.secondary:hover{background:#34404a}
.hero-proof{display:flex;gap:28px;margin-top:34px;padding-top:22px;border-top:1px solid #3a454f}
.hero-proof div{display:flex;flex-direction:column}.hero-proof strong{font-size:20px;letter-spacing:-.4px}.hero-proof span{font-size:11px;color:#8f9ba5;margin-top:2px}

/* Hero dashboard */
.ops-preview{background:#f6f8f9;color:var(--ink);border:1px solid #4a555f;border-radius:16px;padding:18px;box-shadow:0 30px 80px rgba(0,0,0,.38)}
.ops-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dfe4e8;padding:2px 2px 16px}
.ops-top small{display:block;color:#7c8790;font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.4px}
.ops-top strong{display:block;font-size:16px;margin-top:2px}
.live-pill{font-size:10px;font-weight:850;color:var(--green);background:var(--green-bg);border:1px solid #b9e5d4;padding:6px 9px;border-radius:999px}
.live-pill i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--green);margin-right:5px}
.ops-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:13px}
.ops-card{background:#fff;border:1px solid #e0e5e9;border-radius:10px;padding:15px;min-height:104px}
.ops-card span{display:block;font-size:11px;color:#7c8790;font-weight:750}.ops-card strong{display:block;font-size:26px;letter-spacing:-1px;margin:8px 0 2px}.ops-card small{font-size:10px;color:#89939c}
.ops-card.wide{grid-column:1/-1;min-height:96px}.ops-row{display:flex;justify-content:space-between;font-size:12px}.ops-row b{font-size:12px}
.meter{height:7px;background:#e8ecef;border-radius:999px;overflow:hidden;margin:13px 0 8px}.meter span{display:block;width:78%;height:100%;background:var(--brand);border-radius:inherit}
.ops-result{display:flex;align-items:center;gap:11px;background:#202a33;color:#fff;border-radius:10px;padding:13px;margin-top:10px}
.result-icon{width:30px;height:30px;border-radius:8px;background:var(--green);display:grid;place-items:center;font-weight:900}.ops-result strong{display:block;font-size:12px}.ops-result span{display:block;color:#aeb8c0;font-size:10px;margin-top:2px}

/* Sections/cards */
.section{padding:56px 0}
.section h2{font-size:30px;line-height:1.15;letter-spacing:-1px;margin:0 0 8px}
.lead{font-size:17px;color:var(--muted);max-width:760px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:25px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 1px 2px rgba(0,0,0,.02);transition:.16s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#cbd3da}
.card h3{font-size:17px;line-height:1.3;margin:9px 0 6px}.card p{font-size:14px;color:var(--muted);margin:0}
.badge{display:inline-flex;align-items:center;padding:6px 9px;border:1px solid #f0c7b0;background:#fff7f2;color:#a63d10;border-radius:7px;font-size:10px;font-weight:900;letter-spacing:.5px;text-transform:uppercase}

/* Tool pages */
.tool{padding:34px 0 60px}.breadcrumb{font-size:13px;color:#7a858f;margin-bottom:20px}
.toolhead{max-width:850px}.toolhead h1{font-size:48px;line-height:1.06;letter-spacing:-2.2px;margin:10px 0}.toolhead .lead{font-size:17px}
.calculator{background:#fff;border:1px solid var(--line);border-radius:14px;padding:25px;max-width:920px;margin:25px 0;box-shadow:var(--shadow)}
.calculator:before{content:"Calculator";display:block;text-transform:uppercase;letter-spacing:.7px;font-size:11px;color:#8a949d;font-weight:900;margin-bottom:17px}
.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.field label{display:block;font-size:13px;font-weight:800;color:#39444e;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid #cbd2d8;border-radius:8px;background:#fff;color:var(--ink);outline:none}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(232,93,4,.1)}
.calculator .btn{margin-top:18px}
.result{margin-top:18px;padding:17px 18px;background:#f0faf6;border:1px solid #c9e8dc;border-radius:9px;color:#31584e}.result strong{display:block;font-size:25px;color:var(--green);letter-spacing:-.4px}
.content{max-width:880px}.content p,.content li{color:#4f5963}.content h2{font-size:28px;line-height:1.2;letter-spacing:-.7px;margin-top:38px}.content h3{font-size:20px;margin-top:25px}
.note{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);padding:15px 17px;border-radius:8px;margin:20px 0}.note strong{color:#a63d10}
.tablewrap{overflow:auto;margin:20px 0}.data-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:14px}.data-table th,.data-table td{padding:11px 13px;border-bottom:1px solid var(--line);text-align:left}.data-table th{background:#f7f8f9;font-weight:850;color:#3a444e}
.faq{border-top:1px solid var(--line);padding:14px 0}.faq summary{font-weight:800;color:#303a43;cursor:pointer}
.related{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:18px}.related a{background:#fff;border:1px solid var(--line);border-radius:9px;padding:13px 15px;font-size:14px;font-weight:750}.related a:hover{border-color:#efb08e}
.authorbox{background:#fff;border:1px solid var(--line);border-radius:10px;padding:17px;margin-top:30px}
.calculator-shot{display:block;width:100%;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
.content figure{margin:26px 0}.content figcaption{margin-top:7px;color:#8a949d;font-size:12px}

/* Footer */
footer{margin-top:55px;background:#20272e;color:#e2e7eb;padding:45px 0}.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}.foot a{display:block;color:#aeb8c1;font-size:14px;margin:7px 0}.small{font-size:12px;color:#8d98a2}

/* Responsive */
@media(max-width:900px){
  nav{gap:14px}.hero-grid{grid-template-columns:1fr;gap:36px}.ops-preview{max-width:700px}
  .grid{grid-template-columns:1fr 1fr}.foot{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav{min-height:62px}.nav nav{display:none}.hero-pro{padding:54px 0}.hero-pro h1{font-size:44px;letter-spacing:-2.5px}.hero-pro p{font-size:16px}
  .hero-proof{gap:18px}.hero-proof strong{font-size:18px}.ops-grid{grid-template-columns:1fr}.ops-card.wide{grid-column:auto}
  .grid{grid-template-columns:1fr}.fields{grid-template-columns:1fr}.toolhead h1{font-size:39px}
  .related{grid-template-columns:1fr}.foot{grid-template-columns:1fr}.section{padding:45px 0}
}