/* US Rent Tools — premium, fast, no-framework CSS. Mobile-first. No external fonts or scripts. */
*{box-sizing:border-box}
:root{--ink:#0a1931;--muted:#4a5568;--accent:#0a2a5e;--accent-light:#1d4ed8;--red:#b22234;--red-dark:#8f1d2c;--accent2:#eef2fa;--warn:#fff4e0;--border:#dbe2ea;--bg:#f7f8fa;--shadow:0 10px 30px rgba(10,25,49,.12);--shadow-sm:0 4px 14px rgba(10,25,49,.08)}
html{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6;color:var(--ink);background:#fff;scroll-behavior:smooth}
body{margin:0}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--red)}
:focus-visible{outline:3px solid var(--red);outline-offset:3px;border-radius:6px}
.wrap{max-width:980px;margin:0 auto;padding:0 20px 56px}
/* Sticky premium header */
header.site{position:sticky;top:0;z-index:100;background:#fff;border-top:6px solid var(--red);border-bottom:1px solid var(--border);box-shadow:0 2px 16px rgba(10,25,49,.07)}
header.site .wrap{padding-bottom:12px}
.brand{font-size:1.5rem;font-weight:900;letter-spacing:-.02em;text-decoration:none;color:var(--accent)}
.brand span{color:var(--red)}
/* Top menu + dropdowns */
nav.main{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;margin-top:10px}
nav.main>a{text-decoration:none;font-weight:700;padding:8px 10px;border-radius:999px}
nav.main>a:hover{background:var(--accent2);color:var(--accent)}
nav.main a[aria-current="page"]{color:var(--red);text-decoration:underline;text-underline-offset:4px}
.dropdown{position:relative}
.dropbtn{background:transparent;border:0;color:var(--accent);font:inherit;font-weight:700;padding:8px 12px;border-radius:999px;cursor:pointer}
.dropbtn:hover{background:var(--accent2)}
.dropbtn[aria-expanded="true"]{background:var(--accent);color:#fff}
.dropdown-menu{display:none;position:absolute;top:100%;left:0;min-width:280px;max-width:min(340px,90vw);max-height:70vh;overflow-y:auto;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);padding:10px;z-index:200}
.dropdown-menu::before{content:"";position:absolute;left:0;right:0;top:-8px;height:8px;}
.dropdown-menu a{display:block;padding:10px 12px;border-radius:10px;text-decoration:none;font-weight:600;color:var(--ink)}
.dropdown-menu a:hover{background:var(--accent2);color:var(--accent)}
.dropdown:hover .dropdown-menu,.dropdown.open .dropdown-menu{display:block}
main{padding-top:28px}
h1{font-size:clamp(2rem,4.5vw,3rem);line-height:1.12;letter-spacing:-.02em;margin:.4em 0 .6em}
h2{font-size:clamp(1.45rem,3vw,1.9rem);line-height:1.25;margin-top:2em;letter-spacing:-.01em}
h3{font-size:1.15rem;line-height:1.35}
p,li{max-width:72ch}
.hero{background:linear-gradient(135deg,#0a2a5e 0%,#1d4ed8 55%,#b22234 130%);color:#fff;border:0;border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.hero>h1{color:#fff}
.hero>p{color:#e6ecf7}
/* FIX: white hero text must NOT leak into the light tool/result cards inside a hero.
   Those cards are white, so their headings, labels and text must be dark — exactly
   like the standalone tool pages. */
.hero .tool,.hero .result{background:#fff;color:var(--ink)}
.hero .tool h2,.hero .result h2{color:var(--ink);font-size:clamp(1.45rem,3vw,1.9rem);border-bottom:3px solid var(--red);padding-bottom:10px}
.hero .tool p,.hero .result p{color:var(--ink)}
.hero .tool .muted,.hero .result .muted{color:var(--muted)}
.hero .tool label{color:var(--ink)}
.hero .tool a,.hero .result a{color:var(--accent)}
.tools-hero{background:linear-gradient(135deg,#0a2a5e 0%,#1d4ed8 60%,#b22234 140%);color:#fff;border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.tools-hero h1{color:#fff}
.tools-hero p{color:#e6ecf7}
.tagline{font-weight:800;color:var(--red)}
.tools-hero .tagline{color:#ffd9de}
.grid{display:grid;grid-template-columns:1fr;gap:18px;margin:24px 0}
@media(min-width:640px){.grid{grid-template-columns:1fr 1fr}}
.card{border:1px solid var(--border);border-radius:16px;padding:20px;background:#fff;box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent)}
.card h3{margin-top:0}
.tool{border:1px solid var(--border);border-radius:16px;padding:22px;background:var(--bg);box-shadow:var(--shadow-sm)}
label{display:block;font-weight:700;margin:14px 0 6px}
input,select,textarea{width:100%;padding:12px 14px;border:1.5px solid #9aa7b8;border-radius:12px;font-size:1rem;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:3px solid var(--accent-light);outline-offset:2px}
button,.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:999px;padding:12px 22px;font-size:1rem;font-weight:800;cursor:pointer;text-decoration:none;box-shadow:var(--shadow-sm);transition:transform .15s ease,filter .15s ease}
button:hover,.btn:hover{filter:brightness(1.12);transform:translateY(-1px);color:#fff}
.btn-red,.tools-btn{background:var(--red);color:#fff}
nav.main a.tools-btn{background:var(--red);color:#fff;padding:8px 14px}
.result{border:1px solid #c3d0e8;background:#fff;border-radius:14px;padding:18px;margin-top:18px;box-shadow:var(--shadow-sm)}
.result strong{font-size:1.25rem}
.warning{background:var(--warn);border:1px solid #f0c96b;border-radius:14px;padding:16px;margin:18px 0}
.formula,.example{background:#eef2f7;border-radius:14px;padding:16px}
.field-error{color:var(--red-dark);font-weight:700;margin:6px 0 0}
pre.formula{white-space:pre-wrap;word-break:break-word}
/* Dark navy footer */
footer.site{background:#0a1931;color:#dbe2ea;border-top:6px solid var(--red);margin-top:8px}
footer.site .wrap{padding-top:24px;padding-bottom:32px}
footer.site a{color:#fff;text-decoration:none;font-weight:600}
footer.site a:hover{color:#ffd9de;text-decoration:underline}
footer.site nav{margin-bottom:14px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:#fff;padding:8px;z-index:300}
table{border-collapse:collapse;width:100%;margin:14px 0}
.table-wrap{overflow-x:auto}
th,td{border:1px solid var(--border);padding:10px;text-align:left}
small,.muted{color:var(--muted)}
footer.site small,footer.site .muted{color:#cbd5e1}
@media(max-width:640px){
  .wrap{padding-left:16px;padding-right:16px}
  nav.main{gap:6px 8px}
  nav.main>a,.dropbtn{padding:8px}
  .dropdown-menu{left:0;right:auto;min-width:min(260px,calc(100vw - 32px));max-width:calc(100vw - 32px)}
  h1{font-size:2rem}
  .hero,.tools-hero{padding:22px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.brand{display:inline-flex;align-items:center}
.brand img{height:34px;width:auto;display:block}