/* PaycheckShift — clean, fast, mobile-first */
:root{
  --primary:#0f4cdb; --primary-dark:#0a369e; --navy:#0b2545;
  --green:#16a34a; --green-dark:#15803d;
  --bg:#f8fafc; --card:#ffffff; --border:#e2e8f0;
  --text:#1e293b; --muted:#64748b; --light-blue:#eff6ff;
  --radius:12px; --maxw:960px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;font-size:16px}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* Header */
.site-header{background:var(--navy);color:#fff;position:sticky;top:0;z-index:50}
.header-inner{max-width:var(--maxw);margin:0 auto;padding:12px 16px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.35rem;font-weight:800;color:#fff;letter-spacing:-.5px}
.logo span{color:#7dd3fc}
.main-nav{display:flex;gap:4px;flex-wrap:wrap}
.main-nav a{color:#dbeafe;padding:8px 12px;border-radius:8px;font-size:.92rem;font-weight:600}
.main-nav a:hover{background:rgba(255,255,255,.12);text-decoration:none}

/* Layout */
.container{max-width:var(--maxw);margin:0 auto;padding:0 16px}
main{padding:28px 0 48px}
h1{font-size:1.9rem;line-height:1.25;margin-bottom:12px;letter-spacing:-.5px}
h2{font-size:1.4rem;margin:32px 0 12px;letter-spacing:-.3px}
h3{font-size:1.1rem;margin:20px 0 8px}
p{margin-bottom:14px}
.lead{font-size:1.1rem;color:var(--muted);margin-bottom:20px}

/* Hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--primary-dark) 100%);color:#fff;border-radius:0 0 24px 24px;padding:48px 16px 40px;text-align:center}
.hero h1{font-size:2.2rem;margin-bottom:10px}
.hero p{color:#bfdbfe;max-width:640px;margin:0 auto 22px;font-size:1.08rem}
.btn{display:inline-block;background:var(--green);color:#fff;font-weight:700;padding:13px 28px;border-radius:10px;font-size:1.02rem;border:none;cursor:pointer}
.btn:hover{background:var(--green-dark);text-decoration:none;color:#fff}
.btn-primary{background:var(--primary)}
.btn-primary:hover{background:var(--primary-dark)}

/* Tool grid */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin:20px 0}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:block;color:var(--text)}
.tool-card:hover{border-color:var(--primary);box-shadow:0 4px 14px rgba(15,76,219,.1);text-decoration:none}
.tool-card .icon{font-size:1.6rem;margin-bottom:8px}
.tool-card h3{margin:0 0 6px;font-size:1.02rem}
.tool-card p{font-size:.88rem;color:var(--muted);margin:0}
.section-label{font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:1px;color:var(--primary);margin:30px 0 4px}

/* Calculator card */
.calc-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;margin:22px 0;box-shadow:0 6px 24px rgba(2,32,71,.07)}
.calc-card h2{margin-top:0}
.field{margin-bottom:14px}
.field label{display:block;font-weight:700;font-size:.92rem;margin-bottom:6px}
.field input,.field select{width:100%;padding:11px 12px;border:1.5px solid var(--border);border-radius:9px;font-size:1rem;background:#fff}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,76,219,.12)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hint{font-size:.83rem;color:var(--muted);margin-top:4px}

/* Results */
.results{display:none;margin-top:20px;border-top:2px dashed var(--border);padding-top:20px}
.results.show{display:block}
.result-hero{background:var(--light-blue);border-radius:12px;padding:18px;text-align:center;margin-bottom:16px}
.result-hero .lbl{font-size:.85rem;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.result-hero .val{font-size:2rem;font-weight:800;color:var(--navy)}
.result-hero .sub{font-size:.88rem;color:var(--muted)}
.breakdown{width:100%;border-collapse:collapse;font-size:.95rem}
.breakdown td{padding:9px 4px;border-bottom:1px solid var(--border)}
.breakdown tr:last-child td{border-bottom:none}
.breakdown td:last-child{text-align:right;font-weight:700;white-space:nowrap}
.breakdown .neg{color:#dc2626}
.bar-row{display:flex;align-items:center;gap:10px;margin:8px 0;font-size:.88rem}
.bar-row .name{width:170px;flex-shrink:0;color:var(--muted)}
.bar-track{flex:1;background:#eef2f7;border-radius:6px;height:12px;overflow:hidden}
.bar-fill{height:100%;border-radius:6px}

/* Content boxes */
.quickfacts{background:#fffbeb;border:1px solid #fde68a;border-radius:var(--radius);padding:18px;margin:22px 0}
.quickfacts h3{margin-top:0;color:#92400e}
.quickfacts ul{margin:8px 0 0 20px}
.example{background:var(--light-blue);border-radius:var(--radius);padding:18px;margin:22px 0}
.example h3{margin-top:0}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:10px;margin-bottom:10px;padding:14px 16px}
.faq summary{font-weight:700;cursor:pointer}
.faq summary:hover{color:var(--primary)}
.faq details p{margin:10px 0 0;color:var(--text)}
.disclaimer{background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius);padding:16px;font-size:.88rem;color:#7f1d1d;margin:26px 0}

/* Footer */
.site-footer{background:var(--navy);color:#cbd5e1;margin-top:40px}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:32px 16px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:24px}
@media(max-width:900px){.footer-inner{grid-template-columns:1fr 1fr 1fr}}
@media(max-width:620px){.footer-inner{grid-template-columns:1fr 1fr}}
@media(max-width:420px){.footer-inner{grid-template-columns:1fr}}
.site-footer h4{color:#fff;margin-bottom:10px;font-size:.95rem}
.site-footer a{color:#94a3b8;font-size:.9rem;display:block;margin-bottom:6px}
.site-footer a:hover{color:#fff}
.copyright{text-align:center;padding:16px;font-size:.82rem;color:#64748b;border-top:1px solid rgba(255,255,255,.08)}
.footer-brand p{font-size:.88rem;color:#94a3b8;margin-top:10px;line-height:1.55;max-width:260px}

/* Back-to-top floating button */
#toTop{position:fixed;right:20px;bottom:24px;width:48px;height:48px;border-radius:50%;border:none;background:var(--primary);color:#fff;font-size:1.5rem;line-height:1;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(14px);transition:opacity .25s ease,transform .25s ease,background .2s;z-index:999;box-shadow:0 6px 18px rgba(15,76,219,.35)}
#toTop.show{opacity:1;pointer-events:auto;transform:none}
#toTop:hover{background:var(--primary-dark)}
@media(max-width:600px){#toTop{right:14px;bottom:16px;width:44px;height:44px}}

/* Breadcrumb */
.crumb{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.crumb a{color:var(--muted)}

@media(max-width:600px){
  h1{font-size:1.55rem}
  .hero h1{font-size:1.7rem}
  .field-row{grid-template-columns:1fr}
  .calc-card{padding:18px}
  .bar-row .name{width:120px}
  .result-hero .val{font-size:1.6rem}
}