/* Prostadine Reviews — editorial research publication design system */
:root{
  --navy:#16264C; --navy2:#1E315C; --ink:#22303C; --muted:#5A6B7C;
  --paper:#FFFFFF; --bg:#F6F8FB; --line:#E3E9F0;
  --blue:#4A7FA5; --blue-soft:#EAF2F7; --copper:#A9622C; --copper-soft:#F6ECE3;
  --gold:#C89B3C; --green:#2E7D5B; --green-soft:#EAF4EF; --red:#B4453C; --red-soft:#F8ECEA;
  --r:14px; --shadow:0 10px 30px rgba(22,38,76,.08);
  --serif:Charter,"Bitstream Charter","Sitka Text",Cambria,Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);font-size:17px;line-height:1.7}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy2)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:99;border-radius:0 0 8px 0}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}

/* microbar + header */
.microbar{background:var(--navy);color:#DCE6F2;font-size:13px}
.microbar p{margin:0;padding:7px 0;text-align:center}
.microbar a{color:#fff;text-decoration:underline}
.hdr{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:50}
.hdr-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:66px;max-width:none;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:50%}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt strong,.brand-txt small{white-space:nowrap}
.brand-txt strong{font-family:var(--serif);font-size:19px;letter-spacing:.2px}
.brand-txt small{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.nav{display:flex;align-items:center;flex:0 1 auto}
.nav ul{display:flex;gap:4px;list-style:none;margin:0;padding:0;align-items:center}
.nav a{display:block;padding:8px 11px;border-radius:8px;text-decoration:none;font-size:14.5px;font-weight:600;color:var(--ink);white-space:nowrap}
.nav a:hover{background:var(--blue-soft);color:var(--navy)}
.nav a.on{color:var(--navy);background:var(--blue-soft)}
.hdr-cta{margin-left:8px}
.nav .hdr-cta{display:inline-flex;width:auto;margin-left:10px}
.nav a.cta{color:#fff}
.nav a.cta:hover{background:var(--navy2);color:#fff}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:10px;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2.6px;background:var(--navy);border-radius:2px;transition:transform .25s,opacity .25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7.6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.6px) rotate(-45deg)}

/* CTAs */
.cta{display:inline-flex;align-items:center;gap:9px;background:var(--navy);color:#fff;font-weight:700;font-size:15.5px;padding:13px 22px;border-radius:10px;text-decoration:none;box-shadow:0 6px 18px rgba(22,38,76,.22);transition:transform .15s,background .15s}
.cta:hover{background:var(--navy2);transform:translateY(-1px)}
.cta.soft{background:var(--blue-soft);color:var(--navy);box-shadow:none;border:1px solid #CBDCE8}
.cta.soft:hover{background:#DCEAF3}
.cta-row{margin:26px 0}

/* crumbs */
.crumbs{background:var(--bg)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:12px 0 0;font-size:13px;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:6px;color:#B6C2CF}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{text-decoration:underline;color:var(--navy)}

/* article */
.main{padding:34px 20px 70px}
.post{max-width:780px;margin:0 auto;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:clamp(24px,5vw,54px)}
.kicker{margin:0 0 10px;font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--copper)}
h1{font-family:var(--serif);font-size:clamp(27px,4.6vw,42px);line-height:1.15;margin:0 0 12px;color:var(--navy);letter-spacing:-.01em}
.byline{font-size:13.5px;color:var(--muted);margin:0 0 26px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.byline a{color:var(--blue)}
h2{font-family:var(--serif);font-size:clamp(21px,3vw,28px);line-height:1.25;color:var(--navy);margin:44px 0 14px}
h3{font-family:var(--serif);font-size:clamp(18px,2.4vw,21px);color:var(--navy2);margin:30px 0 10px}
p{margin:0 0 16px}
ul,ol{margin:0 0 18px;padding-left:22px}
li{margin-bottom:8px}
li::marker{color:var(--blue)}
blockquote{margin:22px 0;padding:14px 20px;border-left:4px solid var(--blue);background:var(--blue-soft);border-radius:0 10px 10px 0;font-family:var(--serif);font-size:18px;color:var(--navy2)}
hr.sep{border:0;border-top:1px solid var(--line);margin:34px 0}
code{background:var(--blue-soft);padding:2px 6px;border-radius:5px;font-size:.9em}
.ref a{text-decoration:none;color:var(--blue);font-weight:700}

/* cards / quick answer */
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r)}
.quick{padding:22px 24px;margin:6px 0 30px;background:linear-gradient(180deg,#FBFDFF, #F3F8FC);border-color:#CBDCE8}
.quick h2{margin:0 0 14px;font-size:19px}
.quick dl{margin:0;display:grid;grid-template-columns:1fr;gap:0}
.q-row{display:grid;grid-template-columns:150px 1fr;gap:12px;padding:8px 0;border-top:1px dashed var(--line)}
.q-row:first-child{border-top:0}
.q-row dt{font-weight:700;color:var(--navy);font-size:14px}
.q-row dd{margin:0;font-size:14.5px;color:var(--ink)}

/* figures */
.fig{margin:26px 0}
.fig img{margin:0 auto;border-radius:12px}

/* toc */
.toc{padding:18px 22px;margin:26px 0;background:#FBFDFF}
.toc-title{margin:0 0 10px;font-weight:800;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.toc ol{margin:0;padding-left:18px;columns:1;gap:28px}
.toc li{margin-bottom:6px;font-size:14.5px}
.toc a{text-decoration:none;color:var(--navy2)}
.toc a:hover{color:var(--blue);text-decoration:underline}
@media(min-width:720px){.toc ol{columns:2}}

/* tables */
.tbl{overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:12px;-webkit-overflow-scrolling:touch}
.tbl table{width:100%;border-collapse:collapse;min-width:560px;font-size:14.5px}
.tbl th{background:var(--navy);color:#fff;text-align:left;padding:11px 14px;font-size:13px;letter-spacing:.04em;text-transform:uppercase}
.tbl td{padding:11px 14px;border-top:1px solid var(--line);vertical-align:top}
.tbl tbody tr:nth-child(even){background:#F8FAFD}

/* callouts */
.callout{margin:24px 0;padding:16px 20px;border-radius:12px;border:1px solid;border-left-width:5px}
.co-label{display:block;font-size:11.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin-bottom:6px}
.callout p{margin:0 0 8px;font-size:15px}
.callout p:last-child{margin:0}
.co-fact{background:var(--green-soft);border-color:#CFE5D9;border-left-color:var(--green)} .co-fact .co-label{color:var(--green)}
.co-claim{background:var(--copper-soft);border-color:#EBD9C8;border-left-color:var(--copper)} .co-claim .co-label{color:var(--copper)}
.co-ev{background:var(--blue-soft);border-color:#CBDCE8;border-left-color:var(--blue)} .co-ev .co-label{color:var(--blue)}
.co-caution{background:var(--red-soft);border-color:#EBD2CE;border-left-color:var(--red)} .co-caution .co-label{color:var(--red)}
.co-tip{background:#FBF6EA;border-color:#EBDFC2;border-left-color:var(--gold)} .co-tip .co-label{color:#9A7526}

/* faq */
.faq{border:1px solid var(--line);border-radius:12px;margin:12px 0;background:var(--paper)}
.faq summary{cursor:pointer;padding:15px 44px 15px 18px;font-weight:700;color:var(--navy);position:relative;list-style:none;font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--blue);font-weight:400}
.faq[open] summary::after{content:"–"}
.faq-body{padding:0 18px 16px;font-size:15.5px;color:var(--ink)}
.faq-body p{margin:0 0 10px}

/* related */
.related{margin-top:46px;padding-top:26px;border-top:1px solid var(--line)}
.related h2{margin:0 0 16px;font-size:21px}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.rel-card{display:flex;justify-content:space-between;gap:10px;align-items:center;background:#FBFDFF;border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;font-weight:600;font-size:14.5px;color:var(--navy2)}
.rel-card:hover{border-color:var(--blue);background:var(--blue-soft)}
.rel-arrow{color:var(--blue)}

/* footer */
.ftr{background:var(--navy);color:#C7D3E2;margin-top:0}
.ftr-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;padding:52px 20px 30px}
.fcol h3{color:#fff;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 14px}
.fcol ul{list-style:none;margin:0;padding:0}
.fcol li{margin-bottom:9px}
.fcol a{color:#C7D3E2;text-decoration:none;font-size:14px}
.fcol a:hover{color:#fff;text-decoration:underline}
.fbrand p{font-size:13.5px;line-height:1.65}
.fbrand .brand-txt strong{color:#fff;font-size:18px}
.ftr-legal{border-top:1px solid rgba(255,255,255,.14);padding:20px 20px 30px;font-size:12.5px;color:#9FB0C5}
.ftr-legal a{color:#C7D3E2}

/* sticky bar */
.stickybar{position:fixed;left:0;right:0;bottom:0;background:var(--paper);border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(22,38,76,.12);display:flex;align-items:center;gap:12px;padding:10px 14px;transform:translateY(110%);transition:transform .3s;z-index:60}
.stickybar.show{transform:translateY(0)}
.sb-txt{display:flex;flex-direction:column;line-height:1.2;margin-right:auto}
.sb-txt strong{font-family:var(--serif);color:var(--navy);font-size:15px}
.sb-txt span{font-size:12px;color:var(--muted)}
.stickybar .cta{padding:11px 16px;font-size:14px}
.sb-x{background:none;border:0;font-size:22px;color:var(--muted);cursor:pointer;padding:6px 8px;line-height:1}
@media(min-width:900px){.stickybar{display:none}}

/* blog index */
.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin:20px 0}
.lib-card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px;text-decoration:none;color:var(--ink);display:block}
.lib-card:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.lib-card .cl{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--copper)}
.lib-card h3{margin:8px 0 6px;font-size:17px;color:var(--navy)}
.lib-card p{margin:0;font-size:14px;color:var(--muted)}

/* responsive */
@media(min-width:1181px) and (max-width:1400px){
  .nav a{padding:8px 6px;font-size:13.5px}
  .nav .hdr-cta{padding:11px 14px;font-size:14px;margin-left:6px}
  .brand-txt small{display:none}
  .brand-txt strong{font-size:18px}
}
@media(max-width:1180px){
  .ftr-grid{grid-template-columns:1fr 1fr}
  .nav{position:fixed;inset:66px 0 auto 0;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(22,38,76,.14);transform:translateY(-115%);visibility:hidden;transition:transform .3s,visibility .3s;padding:14px 20px 20px;flex-direction:column;align-items:stretch}
  .nav.open{transform:translateY(0);visibility:visible}
  .nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .nav a{font-size:16px;padding:12px 12px}
  .hdr-cta{margin:12px 0 0}
  .nav .hdr-cta{width:100%;justify-content:center;margin:12px 0 0}
  .nav-toggle{display:flex}
}
@media(max-width:640px){
  body{font-size:16px}
  .q-row{grid-template-columns:1fr;gap:2px}
  .ftr-grid{grid-template-columns:1fr}
  .post{padding:22px 18px}
  .main{padding:22px 12px 90px}
}
@media(max-width:380px){
  .brand-txt small{display:none}
  .hdr-in{min-height:58px;gap:10px;padding:0 14px}
  .brand{gap:8px}
  .brand-mark{width:32px;height:32px}
  .brand-txt strong{font-size:17px}
  .nav{inset:58px 0 auto 0}
  .stickybar .cta{font-size:13px;padding:10px 12px}
}
/* hero CTA pair */
.hero-ctas{display:flex;gap:12px;flex-wrap:wrap;margin:8px 0 26px}
@media(max-width:640px){.hero-ctas .cta{width:100%;justify-content:center}}