/* HomeBuyingDFW.com — Strategic Guide for DFW Home Buyers
   Palette: Brilliant Blues & Energetic Accents
   Blue #1E3A8A / #3B82F6, Amber #F59E0B, Slate #0F172A, Light #F8FAFC
*/
:root{
  --c-primary:#1E3A8A;
  --c-primary-2:#3B82F6;
  --c-accent:#F59E0B;
  --c-accent-2:#D97706;
  --c-dark:#0F172A;
  --c-slate:#334155;
  --c-mute:#64748B;
  --c-light:#F8FAFC;
  --c-line:#E2E8F0;
  --c-success:#059669;
  --c-danger:#DC2626;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.08);
  --shadow-md:0 4px 6px -1px rgba(15,23,42,.08), 0 2px 4px -2px rgba(15,23,42,.06);
  --shadow-lg:0 20px 25px -5px rgba(15,23,42,.10), 0 8px 10px -6px rgba(15,23,42,.05);
  --r-sm:.5rem; --r-md:.75rem; --r-lg:1rem; --r-xl:1.5rem;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  background:var(--c-light);color:var(--c-slate);line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-primary-2);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- Layout ---------- */
.container{max-width:1180px;margin:0 auto;padding:0 1.25rem}
.section{padding:4.5rem 0}
.section-tight{padding:3rem 0}
.grid{display:grid;gap:1.5rem}
.grid-2{grid-template-columns:1fr}
.grid-3{grid-template-columns:1fr}
.grid-4{grid-template-columns:1fr 1fr}
@media (min-width:768px){
  .grid-2{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr 1fr 1fr}
  .grid-4{grid-template-columns:repeat(4,1fr)}
}
.center{text-align:center}
.eyebrow{
  display:inline-block;text-transform:uppercase;letter-spacing:.12em;font-weight:700;
  font-size:.75rem;color:var(--c-accent-2);background:#FEF3C7;padding:.35rem .75rem;border-radius:999px;
}
h1,h2,h3,h4{color:var(--c-dark);line-height:1.2;margin:0 0 .75rem}
h1{font-size:clamp(2.1rem,4.5vw,3.5rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;letter-spacing:-.015em}
h3{font-size:1.25rem;font-weight:700}
p.lead{font-size:1.15rem;color:var(--c-slate)}
.muted{color:var(--c-mute)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.85rem 1.4rem;border-radius:var(--r-md);font-weight:600;font-size:1rem;
  border:1px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary{background:var(--c-accent);color:#1a1206}
.btn-primary:hover{background:var(--c-accent-2);color:#fff}
.btn-secondary{background:#fff;color:var(--c-primary);border-color:var(--c-line)}
.btn-dark{background:var(--c-dark);color:#fff}
.btn-dark:hover{background:#1f2a44;color:#fff}
.btn-block{width:100%}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--c-line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.9rem 0}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:800;color:var(--c-dark);font-size:1.15rem}
.brand .logo{
  width:34px;height:34px;border-radius:8px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-2));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.95rem;letter-spacing:-.02em;
}
.brand:hover{text-decoration:none}
.nav-links{display:none;align-items:center;gap:1.5rem}
.nav-links a{color:var(--c-slate);font-weight:500}
.nav-links a:hover{color:var(--c-primary);text-decoration:none}
.nav-links a.active{color:var(--c-primary);font-weight:700}
.nav-cta{display:flex;align-items:center;gap:.5rem}
.menu-toggle{display:flex;background:none;border:1px solid var(--c-line);border-radius:.5rem;padding:.5rem;cursor:pointer}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--c-dark);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:22px;height:2px;background:var(--c-dark)}
.menu-toggle span::before{top:-7px}.menu-toggle span::after{top:7px}
@media (min-width:900px){
  .nav-links{display:flex}
  .menu-toggle{display:none}
}
.mobile-menu{display:none;border-top:1px solid var(--c-line);background:#fff;padding:.75rem 1.25rem}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:.75rem 0;color:var(--c-dark);font-weight:500;border-bottom:1px solid var(--c-line)}
.mobile-menu a:last-child{border-bottom:none}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(1200px 600px at -10% -20%,rgba(59,130,246,.18),transparent 60%),
             radial-gradient(800px 400px at 110% 10%,rgba(245,158,11,.18),transparent 60%),
             linear-gradient(180deg,#0B1530 0%,#102347 60%,#1E3A8A 100%);
  color:#fff;padding:5.5rem 0 5rem;
}
.hero h1{color:#fff}
.hero p.lead{color:#CBD5E1;max-width:680px}
.hero .eyebrow{background:rgba(245,158,11,.18);color:#FCD34D}
.hero-cta{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.75rem}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:2.5rem;max-width:560px}
@media (min-width:640px){.hero-stats{grid-template-columns:repeat(4,1fr)}}
.hero-stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-md);padding:1rem}
.hero-stat .v{font-size:1.6rem;font-weight:800;color:#FCD34D;line-height:1}
.hero-stat .l{font-size:.78rem;color:#CBD5E1;text-transform:uppercase;letter-spacing:.06em;margin-top:.35rem}

/* ---------- Cards ---------- */
.card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:1.75rem;box-shadow:var(--shadow-sm)}
.card-accent{border-top:4px solid var(--c-primary-2)}
.card-amber{border-top:4px solid var(--c-accent)}
.card h3{margin-top:0}
.card .icon{
  width:44px;height:44px;border-radius:10px;background:#EFF6FF;color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:1.25rem;margin-bottom:.9rem;font-weight:700;
}
.card.amber .icon{background:#FEF3C7;color:var(--c-accent-2)}

/* ---------- Chart container ---------- */
.chart-wrap{position:relative;width:100%;height:340px}
@media (min-width:768px){.chart-wrap{height:380px}}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-lg);background:#fff}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:640px}
th,td{padding:.85rem 1rem;text-align:left;border-bottom:1px solid var(--c-line)}
th{background:#F1F5F9;color:var(--c-dark);font-weight:700;text-transform:uppercase;font-size:.78rem;letter-spacing:.05em}
tr:last-child td{border-bottom:none}
td.num{font-variant-numeric:tabular-nums;font-weight:600}
.tag{display:inline-block;padding:.2rem .55rem;border-radius:999px;font-size:.78rem;font-weight:700}
.tag-buyer{background:#DCFCE7;color:#166534}
.tag-balanced{background:#FEF3C7;color:#92400E}
.tag-seller{background:#FEE2E2;color:#991B1B}
.delta-down{color:var(--c-success);font-weight:700}
.delta-up{color:var(--c-danger);font-weight:700}

/* ---------- Timeline ---------- */
.timeline{border-left:3px solid var(--c-primary-2);padding-left:2rem;margin-left:1rem;position:relative}
.timeline-step{position:relative;margin-bottom:2rem}
.timeline-step:last-child{margin-bottom:0}
.timeline-dot{
  position:absolute;left:-2.85rem;top:.1rem;width:2.25rem;height:2.25rem;border-radius:999px;
  background:var(--c-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:var(--shadow-md);
}
.timeline-step h3{display:flex;align-items:center;gap:.5rem;margin-bottom:.3rem}

/* ---------- Callouts ---------- */
.callout{
  border-left:4px solid var(--c-accent);background:#FFFBEB;padding:1.1rem 1.25rem;border-radius:0 var(--r-md) var(--r-md) 0;
}
.callout-blue{border-left-color:var(--c-primary-2);background:#EFF6FF}
.callout strong{color:var(--c-dark)}

/* ---------- Forms ---------- */
.form{display:grid;gap:1rem}
.form-row{display:grid;grid-template-columns:1fr;gap:1rem}
@media (min-width:640px){.form-row.two{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-weight:600;color:var(--c-dark);font-size:.95rem}
.field .hint{font-size:.82rem;color:var(--c-mute)}
input[type=text],input[type=email],input[type=tel],input[type=number],select,textarea{
  width:100%;padding:.75rem .9rem;border:1px solid var(--c-line);border-radius:var(--r-sm);
  font:inherit;background:#fff;color:var(--c-dark);transition:border-color .15s ease,box-shadow .15s ease;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--c-primary-2);box-shadow:0 0 0 3px rgba(59,130,246,.15)}
textarea{min-height:130px;resize:vertical}
.checks{display:grid;gap:.5rem}
.check{display:flex;gap:.6rem;align-items:flex-start;font-size:.95rem;color:var(--c-slate)}
.check input{margin-top:.2rem}
fieldset{border:1px solid var(--c-line);border-radius:var(--r-md);padding:1rem 1.25rem;margin:0}
legend{padding:0 .5rem;font-weight:700;color:var(--c-dark)}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:linear-gradient(120deg,var(--c-primary) 0%,#2A4FB0 50%,var(--c-primary-2) 100%);
  color:#fff;border-radius:var(--r-xl);padding:2.5rem;display:grid;gap:1rem;
  grid-template-columns:1fr;align-items:center;
}
@media (min-width:768px){.cta-banner{grid-template-columns:2fr 1fr}}
.cta-banner h2{color:#fff;margin:0}
.cta-banner p{color:#DBEAFE;margin:.4rem 0 0}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:#CBD5E1;padding:3.5rem 0 1.5rem;margin-top:4rem}
.site-footer a{color:#CBD5E1}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:.75rem}
.footer-grid{display:grid;grid-template-columns:1fr;gap:2rem}
@media (min-width:768px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}}
.footer-brand p{color:#94A3B8;max-width:380px}
.footer-list{list-style:none;padding:0;margin:0}
.footer-list li{margin-bottom:.5rem}
.legal{border-top:1px solid #1F2A44;margin-top:2.5rem;padding-top:1.25rem;color:#64748B;font-size:.85rem;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between}

/* ---------- Misc ---------- */
.divider{height:1px;background:var(--c-line);margin:2.5rem 0}
.kbd{background:#F1F5F9;border:1px solid var(--c-line);border-bottom-width:2px;padding:.05rem .4rem;border-radius:.35rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.85em}
.list-clean{list-style:none;padding:0;margin:0}
.list-clean li{padding:.5rem 0;border-bottom:1px solid var(--c-line)}
.list-clean li:last-child{border:none}
.check-icon{color:var(--c-success);font-weight:700;margin-right:.4rem}
.x-icon{color:var(--c-danger);font-weight:700;margin-right:.4rem}

/* page hero (interior pages) */
.page-hero{
  background:linear-gradient(180deg,#0B1530 0%,#1E3A8A 100%);color:#fff;padding:4rem 0 3rem;
}
.page-hero h1{color:#fff;margin-bottom:.5rem}
.page-hero p{color:#CBD5E1;max-width:760px;margin:0}
.page-hero .eyebrow{background:rgba(245,158,11,.18);color:#FCD34D}

/* skip link */
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:.5rem .75rem;border-radius:.4rem}
.skip:focus{left:1rem;top:1rem;z-index:100}