/*
Theme Name: BuyBank Guide
Description: Independent guide & review theme for the BuyBank.io crypto exchange knowledge base.
Version: 2.4.1
*/

:root{
  --ink:#0C1B2A;
  --ink-2:#12283B;
  --ink-3:#1B3346;
  --paper:#FFFFFF;
  --bg:#F4F6F9;
  --bg-2:#EEF2F6;
  --brand:#17B39B;
  --brand-d:#0E7C6E;
  --brand-soft:#E4F6F2;
  --gold:#E8B44A;
  --gold-d:#C7912A;
  --cta:#FF6A3D;
  --cta-d:#E8501F;
  --text:#1B2A36;
  --muted:#667A88;
  --line:#E4EAF0;
  --danger:#D8412F;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 1px 2px rgba(12,27,42,.06),0 8px 30px rgba(12,27,42,.07);
  --shadow-lg:0 20px 60px rgba(12,27,42,.14);
  --wrap:1120px;
  --serif:Georgia,"Times New Roman",Cambria,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.72;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-d);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.22;color:var(--ink);font-weight:700;margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4.6vw,3rem)}
h2{font-size:clamp(1.5rem,3.4vw,2.15rem);margin-top:1.6em}
h3{font-size:clamp(1.2rem,2.4vw,1.5rem);margin-top:1.4em}
p{margin:0 0 1.1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.narrow{max-width:820px}

/* ---------- skip link ---------- */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:1000}
.skip-link:focus{left:8px;top:8px}

/* ---------- top ticker / disclaimer bar ---------- */
.topbar{background:var(--ink);color:#c6d4de;font-size:13px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:38px;padding-top:6px;padding-bottom:6px}
.topbar .ticker{display:flex;gap:18px;overflow:hidden;white-space:nowrap;font-family:var(--mono);font-size:12.5px}
.topbar .ticker b{color:var(--gold);font-weight:600}
.topbar .ticker .up{color:#3fd6a4}
.topbar .ticker .dn{color:#ff8b6b}
.disc-chip{position:relative;flex:none;cursor:help;background:rgba(232,180,74,.12);border:1px solid rgba(232,180,74,.45);color:var(--gold);border-radius:999px;padding:2px 11px;font-size:11.5px;font-weight:600;letter-spacing:.02em}
.disc-chip .disc-pop{visibility:hidden;opacity:0;transition:.15s;position:absolute;right:0;top:130%;width:300px;max-width:78vw;background:#fff;color:var(--text);border:1px solid var(--line);box-shadow:var(--shadow-lg);border-radius:12px;padding:12px 14px;font-size:12.5px;font-weight:400;line-height:1.5;letter-spacing:0;z-index:50}
.disc-chip:hover .disc-pop,.disc-chip:focus .disc-pop,.disc-chip:focus-within .disc-pop{visibility:visible;opacity:1}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:var(--ink-2);border-bottom:1px solid rgba(255,255,255,.06)}
.site-header .wrap{display:flex;align-items:center;gap:18px;min-height:66px}
.site-branding{display:flex;align-items:center}
.site-branding a{display:block}
.site-branding img{height:38px;width:auto}
.main-navigation{margin-left:auto}
.main-navigation ul{list-style:none;display:flex;gap:4px;margin:0;padding:0}
.main-navigation a{display:block;color:#d6e2ea;padding:9px 13px;border-radius:9px;font-size:14.5px;font-weight:500}
.main-navigation a:hover{background:rgba(255,255,255,.07);color:#fff;text-decoration:none}
.main-navigation .current a{color:#fff;background:rgba(23,179,155,.18)}
.menu-toggle{display:none;margin-left:auto;background:transparent;border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:9px;width:44px;height:40px;font-size:20px;cursor:pointer}
.header-cta{flex:none}
.lang-switch{display:flex;gap:2px;background:rgba(0,0,0,.22);border-radius:9px;padding:3px}
.lang-switch a{color:#9fb2be;font-size:12.5px;font-weight:700;padding:5px 9px;border-radius:6px;text-transform:uppercase}
.lang-switch a.active{background:var(--brand);color:#04211c}
.lang-switch a:hover{text-decoration:none;color:#fff}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:12px 22px;border-radius:11px;cursor:pointer;border:0;transition:transform .06s ease,box-shadow .15s;line-height:1}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-cta{background:linear-gradient(180deg,var(--cta),var(--cta-d));color:#fff;box-shadow:0 8px 20px rgba(255,106,61,.32)}
.btn-cta:hover{color:#fff;box-shadow:0 10px 26px rgba(255,106,61,.42)}
.btn-ghost{background:transparent;border:1.5px solid var(--brand);color:var(--brand-d)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{color:#fff}
.btn-sm{padding:9px 15px;font-size:13.5px;border-radius:9px}
.btn-lg{padding:16px 30px;font-size:17px}
.header-cta .btn{padding:10px 16px;font-size:13.5px}
.btn .arw{font-size:1.05em;transform:translateY(.5px)}

/* ---------- hero ---------- */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(23,179,155,.22),transparent),linear-gradient(180deg,var(--ink),var(--ink-2));color:#e9f1f6;padding:56px 0 64px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(800px 400px at 75% 20%,#000,transparent);pointer-events:none}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:16px}
.hero h1{color:#fff;margin-bottom:.4em}
.hero h1 em{font-style:normal;color:var(--brand);background:linear-gradient(180deg,transparent 62%,rgba(23,179,155,.28) 62%)}
.hero .lede{font-size:19px;color:#c3d2dc;margin-bottom:26px;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.hero .trust-row{display:flex;flex-wrap:wrap;gap:18px 26px;font-size:13.5px;color:#9fb2be}
.hero .trust-row b{color:#fff}
.hero-mini-disc{margin-top:20px;font-size:12px;color:#7f93a0}
.hero-mini-disc .disc-chip{color:var(--gold)}

/* rate card in hero */
.rate-card{background:linear-gradient(180deg,#0f2637,#0b1c2b);border:1px solid rgba(23,179,155,.32);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-lg)}
.rate-card .rc-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.rate-card .rc-head b{color:#fff;font-size:15px}
.rate-card .rc-live{font-size:11px;color:#3fd6a4;display:flex;align-items:center;gap:6px;font-family:var(--mono)}
.rate-card .rc-live::before{content:"";width:8px;height:8px;border-radius:50%;background:#3fd6a4;box-shadow:0 0 0 0 rgba(63,214,164,.6);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(63,214,164,.5)}70%{box-shadow:0 0 0 8px rgba(63,214,164,0)}100%{box-shadow:0 0 0 0 rgba(63,214,164,0)}}
.rate-row{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.07);font-family:var(--mono)}
.rate-row:last-child{border-bottom:0}
.rate-row .sym{display:flex;align-items:center;gap:10px;color:#dbe7ee;font-weight:600}
.rate-row .coin{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;color:#0b1c2b}
.coin.btc{background:#f7931a}.coin.eth{background:#8a92b2;color:#fff}.coin.usdt{background:#26a17b;color:#fff}.coin.xrp{background:#23292f;color:#fff}
.rate-row .px{text-align:right}
.rate-row .px b{color:#fff;display:block;font-size:14.5px}
.rate-row .px .chg{font-size:11.5px}
.rate-row .chg.up{color:#3fd6a4}.rate-row .chg.dn{color:#ff8b6b}
.rate-card .rc-foot{margin-top:14px}
.rate-card .rc-note{margin-top:10px;font-size:10.5px;color:#7f93a0;line-height:1.4}

/* ---------- generic sections ---------- */
.section{padding:56px 0}
.section.alt{background:var(--paper)}
.section.dark{background:var(--ink);color:#dbe7ee}
.section.dark h2,.section.dark h3{color:#fff}
.sec-head{max-width:720px;margin:0 auto 34px;text-align:center}
.sec-head .kicker{font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-d)}
.section.dark .sec-head .kicker{color:var(--brand)}
.sec-head p{color:var(--muted);font-size:17px;margin-top:.4em}
.section.dark .sec-head p{color:#9fb2be}

/* card grid */
.grid{display:grid;gap:22px}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.section.dark .card{background:var(--ink-2);border-color:rgba(255,255,255,.08)}
.card h3{margin-top:0;font-size:1.22rem}
.card p:last-child{margin-bottom:0}
.card .ico{width:46px;height:46px;border-radius:12px;background:var(--brand-soft);display:grid;place-items:center;font-size:22px;margin-bottom:14px}
.section.dark .card .ico{background:rgba(23,179,155,.15)}
.card.link-card:hover{border-color:var(--brand);box-shadow:var(--shadow-lg);transform:translateY(-2px);transition:.15s}
.card .tag{font-size:12px;font-weight:700;color:var(--gold-d);text-transform:uppercase;letter-spacing:.05em}

/* ---------- content article ---------- */
.page-hero{background:linear-gradient(180deg,var(--ink),var(--ink-2));color:#e9f1f6;padding:48px 0 40px}
.page-hero .wrap{position:relative}
.page-hero h1{color:#fff;max-width:20em}
.page-hero .lede{color:#c3d2dc;font-size:18px;max-width:44em;margin-bottom:0}
.breadcrumb{font-size:13px;color:#8fa4b1;margin-bottom:14px}
.breadcrumb a{color:#b9c9d4}
.breadcrumb span{color:var(--gold)}
.page-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:16px;font-size:13px;color:#9fb2be}
.page-meta .pm{display:inline-flex;align-items:center;gap:6px}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;padding:48px 0}
.entry-content{font-size:17.5px}
.entry-content > h2:first-child{margin-top:0}
.entry-content h2{padding-top:.2em}
.entry-content ul,.entry-content ol{margin:0 0 1.2em;padding-left:1.3em}
.entry-content li{margin-bottom:.5em}
.entry-content a{text-decoration:underline;text-underline-offset:2px}
.entry-content strong{color:var(--ink)}
.entry-content code{font-family:var(--mono);background:var(--bg-2);padding:.12em .4em;border-radius:5px;font-size:.9em;color:var(--brand-d)}
.lead-p{font-size:20px;line-height:1.6;color:var(--ink-3)}

/* blockquote / warning */
blockquote{margin:1.6em 0;padding:16px 20px;border-left:4px solid var(--gold);background:#fff7e8;border-radius:0 12px 12px 0;color:#5c4a1e;font-size:16px}
blockquote p:last-child{margin-bottom:0}
.callout{margin:1.6em 0;padding:18px 20px;border-radius:12px;border:1px solid;display:flex;gap:14px}
.callout .c-ico{font-size:22px;flex:none;line-height:1.4}
.callout p:last-child{margin-bottom:0}
.callout.warn{background:#fdf1ef;border-color:#f3c9c0;color:#7d2e20}
.callout.warn strong{color:#a83521}
.callout.tip{background:var(--brand-soft);border-color:#b9e6dc;color:#0c4d44}
.callout.info{background:#eef4fb;border-color:#cadcf0;color:#264a6d}

/* tables */
.table-wrap{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);border-radius:12px}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--ink);color:#fff;font-family:var(--sans);font-size:13.5px;font-weight:600}
tbody tr:nth-child(even){background:var(--bg)}
td .yes{color:var(--brand-d);font-weight:700}
td .no{color:var(--danger);font-weight:700}

/* inline CTA band */
.cta-band{margin:2em 0;background:linear-gradient(120deg,var(--ink),var(--ink-3));border-radius:var(--radius-lg);padding:30px 32px;color:#e9f1f6;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap}
.cta-band h3{color:#fff;margin:0 0 6px}
.cta-band p{margin:0;color:#a9bcc8;font-size:15px}
.cta-band .btn{flex:none}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--paper);overflow:hidden}
.faq summary{cursor:pointer;padding:16px 18px;font-weight:600;color:var(--ink);font-family:var(--serif);font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brand);font-size:22px;line-height:1;flex:none}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .faq-a{padding:14px 18px 4px}
.faq .faq-a p:last-child{margin-bottom:14px}

/* sidebar */
.sidebar .widget{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:22px;box-shadow:var(--shadow)}
.sidebar .widget-title{font-family:var(--serif);font-size:1.05rem;margin:0 0 12px;padding-bottom:10px;border-bottom:2px solid var(--brand-soft)}
.sidebar ul{list-style:none;margin:0;padding:0}
.sidebar .toc li{margin-bottom:7px}
.sidebar .toc a{color:var(--text);font-size:14.5px;display:block;padding-left:14px;position:relative}
.sidebar .toc a::before{content:"›";position:absolute;left:0;color:var(--brand)}
.sidebar .widget.cta-widget{background:linear-gradient(180deg,var(--ink-2),var(--ink));color:#dbe7ee;border-color:transparent}
.sidebar .cta-widget .widget-title{color:#fff;border-color:rgba(255,255,255,.12)}
.sidebar .cta-widget p{font-size:14px;color:#a9bcc8}
.sidebar .city-list a{font-size:14px;color:var(--text);padding:5px 0;display:block;border-bottom:1px dashed var(--line)}
.sidebar .city-list a:last-child{border:0}

/* city chips */
.city-chips{display:flex;flex-wrap:wrap;gap:10px;margin:1.4em 0}
.city-chips a{background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:14px;font-weight:600;color:var(--ink)}
.city-chips a:hover{border-color:var(--brand);background:var(--brand-soft);text-decoration:none}

/* stat strip */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-strip .stat b{display:block;font-family:var(--serif);font-size:2rem;color:var(--brand)}
.section.dark .stat-strip .stat b{color:var(--gold)}
.stat-strip .stat span{font-size:13.5px;color:var(--muted)}
.section.dark .stat-strip .stat span{color:#9fb2be}

/* review stars + cards */
.rev-summary{display:flex;align-items:center;gap:22px;flex-wrap:wrap;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px;margin:1.4em 0;box-shadow:var(--shadow)}
.rev-score{font-family:var(--serif);font-size:3.2rem;color:var(--ink);line-height:1}
.stars{color:var(--gold);font-size:20px;letter-spacing:2px}
.rev-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.rev-card .rc-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.rev-card .av{width:42px;height:42px;border-radius:50%;background:var(--brand);color:#04211c;display:grid;place-items:center;font-weight:700;font-family:var(--serif)}
.rev-card .who b{display:block;color:var(--ink)}
.rev-card .who span{font-size:12.5px;color:var(--muted)}
.rev-card .stars{font-size:15px}
.rev-card p{font-size:15px;margin:0}

/* pros cons */
.pc-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:1.6em 0}
.pc{border-radius:12px;padding:18px 20px;border:1px solid}
.pc.pros{background:var(--brand-soft);border-color:#b9e6dc}
.pc.cons{background:#fdf1ef;border-color:#f3c9c0}
.pc h4{font-family:var(--serif);margin:0 0 10px;font-size:1.1rem}
.pc.pros h4{color:#0c4d44}.pc.cons h4{color:#a83521}
.pc ul{margin:0;padding-left:1.1em;font-size:15px}
.pc li{margin-bottom:6px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#a9bcc8;padding:52px 0 26px;font-size:14.5px}
.site-footer a{color:#c6d4de}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;margin-bottom:34px}
.site-footer h4{color:#fff;font-family:var(--sans);font-size:14px;text-transform:uppercase;letter-spacing:.06em;margin:0 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:9px}
.footer-brand img{height:40px;margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:#8fa4b1;max-width:32em}
.footer-disclaimer{border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.1);padding:20px 0;margin-bottom:20px;font-size:12.5px;color:#8296a3;line-height:1.6}
.footer-disclaimer strong{color:#c6d4de}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#7f93a0}
.footer-bottom a{color:#9fb2be}

/* utilities */
.center{text-align:center}
.mt0{margin-top:0}.mb0{margin-bottom:0}
.hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.pill{display:inline-block;background:var(--brand-soft);color:var(--brand-d);border-radius:999px;padding:3px 11px;font-size:12.5px;font-weight:700}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero .wrap{grid-template-columns:1fr;gap:32px}
  .layout{grid-template-columns:1fr;gap:0}
  .sidebar{margin-top:34px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  body{font-size:16px}
  .main-navigation{position:fixed;inset:66px 0 auto 0;background:var(--ink-2);border-bottom:1px solid rgba(255,255,255,.1);margin:0;max-height:0;overflow:hidden;transition:max-height .28s ease}
  .main-navigation.open{max-height:80vh;overflow:auto}
  .main-navigation ul{flex-direction:column;padding:8px 14px 16px;gap:2px}
  .main-navigation a{padding:12px 10px;font-size:16px;border-radius:8px}
  .menu-toggle{display:block}
  .header-cta{display:none}
  .site-header .wrap{gap:10px}
  .topbar .ticker{display:none}
  .topbar .wrap{justify-content:flex-end}
  .grid.cols-2,.grid.cols-3,.grid.cols-4,.pc-grid,.stat-strip{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:26px 12px}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:42px 0}
  .rev-summary{flex-direction:column;align-items:flex-start;text-align:left}
}
@media(min-width:761px){.menu-toggle{display:none}}