/*!
 * up-bit.xyz Guide Theme v1.0
 * Independent informational guide — clean light + cobalt blue
 * Built as a static WordPress-style theme
 */

/* ---------- Tokens ---------- */
:root{
  --cobalt:#1B5BFF;
  --cobalt-dark:#0B3FCC;
  --cobalt-deep:#082E96;
  --teal:#10B8A0;
  --ink:#0F172A;
  --slate:#334155;
  --muted:#64748B;
  --line:#E5EAF2;
  --line-soft:#EEF2F8;
  --bg:#FFFFFF;
  --bg-soft:#F6F8FC;
  --bg-blue:#EEF3FF;
  --warn-bg:#FFF7ED;
  --warn-line:#FDBA74;
  --warn-ink:#9A3412;
  --ok-bg:#ECFDF5;
  --ok-line:#6EE7B7;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.05);
  --shadow:0 8px 30px rgba(15,23,42,.08);
  --shadow-lg:0 20px 50px rgba(11,63,204,.16);
  --maxw:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR","Noto Sans JP","Noto Sans SC",Arial,sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--cobalt);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;color:var(--ink);font-weight:800;letter-spacing:-.02em}
h1{font-size:clamp(2rem,4.5vw,3.1rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:2.4em 0 .7em}
h3{font-size:clamp(1.15rem,2vw,1.4rem);margin:1.8em 0 .5em}
p{margin:0 0 1.1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:860px}

/* ---------- Skip link / a11y ---------- */
.skip-link{position:absolute;left:-999px;top:0;background:var(--cobalt);color:#fff;padding:10px 16px;z-index:1000;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* ---------- Top disclaimer bar ---------- */
.topbar{background:#0B1220;color:#cbd5e1;font-size:12.5px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:34px;padding-top:6px;padding-bottom:6px}
.topbar .disc{display:inline-flex;align-items:center;gap:7px;position:relative;cursor:help}
.topbar .disc .dot{width:7px;height:7px;border-radius:50%;background:#f59e0b;flex:none;box-shadow:0 0 0 3px rgba(245,158,11,.18)}
.topbar .disc .tip{position:absolute;left:0;top:130%;width:min(420px,86vw);background:#fff;color:var(--slate);border:1px solid var(--line);border-radius:10px;padding:12px 14px;box-shadow:var(--shadow);font-size:13px;line-height:1.55;opacity:0;visibility:hidden;transform:translateY(-4px);transition:.16s;z-index:60}
.topbar .disc:hover .tip,.topbar .disc:focus-within .tip{opacity:1;visibility:visible;transform:translateY(0)}
.topbar .tlinks{display:flex;gap:14px}
.topbar a{color:#94a3b8}
.topbar a:hover{color:#fff;text-decoration:none}

/* ---------- Header ---------- */
.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(--line)}
.site-header .container{display:flex;align-items:center;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;flex:none}
.brand img{height:38px;width:auto}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.main-nav a{color:var(--slate);font-weight:600;font-size:15px;padding:9px 13px;border-radius:9px;white-space:nowrap}
.main-nav a:hover{background:var(--bg-blue);color:var(--cobalt-dark);text-decoration:none}
.main-nav a.current{color:var(--cobalt);background:var(--bg-blue)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px}

/* Language switcher */
.lang{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;background:var(--bg-soft);border:1px solid var(--line);color:var(--slate);font-weight:600;font-size:14px;padding:8px 11px;border-radius:9px;cursor:pointer}
.lang-btn:hover{border-color:var(--cobalt)}
.lang-menu{position:absolute;right:0;top:115%;background:#fff;border:1px solid var(--line);border-radius:11px;box-shadow:var(--shadow);padding:6px;min-width:172px;display:none;z-index:60}
.lang-menu.open{display:block}
.lang-menu a{display:flex;align-items:center;gap:9px;padding:8px 11px;border-radius:8px;color:var(--slate);font-size:14px;font-weight:600}
.lang-menu a:hover{background:var(--bg-blue);text-decoration:none}
.lang-menu a.active{color:var(--cobalt);background:var(--bg-blue)}
.lang-menu .flag{font-size:16px}

/* CTA button */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:700;font-size:15px;padding:11px 20px;border-radius:11px;border:1px solid transparent;cursor:pointer;transition:transform .12s,box-shadow .2s,background .2s;text-align:center}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:linear-gradient(135deg,#2E6BFF,#0B3FCC);color:#fff;box-shadow:0 8px 22px rgba(27,91,255,.28)}
.btn-primary:hover{box-shadow:0 12px 28px rgba(27,91,255,.36);color:#fff}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--cobalt);color:var(--cobalt)}
.btn-lg{font-size:17px;padding:15px 30px;border-radius:13px}
.btn-block{width:100%}
.btn .arr{transition:transform .15s}
.btn:hover .arr{transform:translateX(3px)}

/* Hamburger */
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;width:42px;height:40px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:.2s}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;background:radial-gradient(1200px 500px at 80% -10%,#E6EEFF 0,rgba(230,238,255,0) 60%),linear-gradient(180deg,#F7FAFF,#fff)}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(27,91,255,.07) 1px,transparent 0);background-size:26px 26px;pointer-events:none;mask-image:linear-gradient(180deg,#000,transparent)}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding-top:64px;padding-bottom:64px}
.hero .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);color:var(--cobalt-dark);font-weight:700;font-size:13px;padding:6px 13px;border-radius:999px;box-shadow:var(--shadow-sm);margin-bottom:18px}
.hero .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}
.hero h1{margin:0 0 16px}
.hero .lede{font-size:1.18rem;color:var(--slate);max-width:560px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;align-items:center}
.hero-note{font-size:12.5px;color:var(--muted);margin-top:16px;display:flex;align-items:center;gap:7px}
.hero-note .i{display:inline-flex;width:16px;height:16px;border-radius:50%;background:var(--bg-blue);color:var(--cobalt);font-size:11px;font-weight:800;align-items:center;justify-content:center;cursor:help;position:relative}
.hero-note .i .tip{position:absolute;left:0;bottom:150%;width:min(360px,80vw);background:#0B1220;color:#e2e8f0;border-radius:9px;padding:10px 12px;font-size:12px;line-height:1.5;opacity:0;visibility:hidden;transition:.16s;font-weight:500;z-index:30}
.hero-note .i:hover .tip{opacity:1;visibility:visible}
.hero-visual{position:relative}
.hero-visual img{border-radius:18px;box-shadow:var(--shadow-lg);border:1px solid rgba(27,91,255,.1)}
.hero-badges{position:absolute;left:-14px;bottom:-18px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:12px 16px;display:flex;gap:20px}
.hero-badges b{display:block;font-size:1.3rem;color:var(--cobalt);line-height:1.1}
.hero-badges span{font-size:12px;color:var(--muted)}

/* ---------- Stat strip ---------- */
.stats{background:var(--ink);color:#fff}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:30px 20px}
.stats .s b{display:block;font-size:1.9rem;color:#fff;letter-spacing:-.02em}
.stats .s span{color:#94a3b8;font-size:13.5px}
.stats .s b em{color:var(--teal);font-style:normal}

/* ---------- Sections ---------- */
section{padding:0}
.section{padding:58px 0}
.section.alt{background:var(--bg-soft)}
.section-head{text-align:center;max-width:720px;margin:0 auto 38px}
.section-head .eyebrow{color:var(--cobalt);font-weight:800;font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;display:block}
.section-head p{color:var(--muted)}

/* Feature grid */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cdd9f5}
.card .ic{width:46px;height:46px;border-radius:12px;background:var(--bg-blue);color:var(--cobalt);display:flex;align-items:center;justify-content:center;margin-bottom:14px;font-size:22px}
.card h3{margin:0 0 8px;font-size:1.15rem}
.card p{color:var(--muted);font-size:15px;margin:0}
.card.link-card a{font-weight:700;font-size:14px;display:inline-flex;gap:6px;margin-top:12px}

/* ---------- Article / content body ---------- */
.page-wrap{padding:46px 0 60px}
.layout{display:grid;grid-template-columns:1fr 300px;gap:44px;align-items:start}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:18px}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--cobalt)}
.breadcrumbs .sep{margin:0 7px;opacity:.6}
.page-title{margin:0 0 14px}
.page-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;color:var(--muted);font-size:13.5px;margin-bottom:26px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.page-meta .tag{background:var(--bg-blue);color:var(--cobalt-dark);font-weight:700;padding:4px 10px;border-radius:999px;font-size:12px}
.lead{font-size:1.18rem;color:var(--slate);margin-bottom:1.4em}

.page-cta{display:flex;align-items:center;flex-wrap:wrap;gap:14px 18px;margin:0 0 30px;padding:18px 20px;background:var(--bg-blue);border:1px solid #dbe5ff;border-radius:14px}
.page-cta .hero-note{margin:0}
@media(max-width:760px){.page-cta{padding:16px}.page-cta .btn{width:100%}}

.article :is(h2,h3){scroll-margin-top:90px}
.article h2{position:relative;padding-top:.2em}
.article ul,.article ol{margin:0 0 1.2em;padding-left:1.3em}
.article li{margin:.4em 0}
.article strong{color:var(--ink)}
.article code{background:var(--bg-blue);color:var(--cobalt-deep);padding:.12em .45em;border-radius:6px;font-size:.9em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-weight:600}
.article figure{margin:1.6em 0}
.article figure img{border-radius:12px;border:1px solid var(--line)}
.article figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}

/* Tables */
.table-wrap{overflow-x:auto;margin:1.5em 0;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:420px}
caption{caption-side:top;text-align:left;font-weight:700;color:var(--ink);padding:14px 16px 0}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line-soft)}
thead th{background:var(--bg-soft);color:var(--slate);font-weight:700;font-size:13.5px;text-transform:uppercase;letter-spacing:.03em}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--bg-soft)}

/* Blockquote / callouts */
blockquote{margin:1.6em 0;padding:16px 20px;border-radius:12px;background:var(--bg-blue);border-left:4px solid var(--cobalt);color:var(--slate)}
blockquote p:last-child{margin:0}
blockquote.warning{background:var(--warn-bg);border-left-color:#f59e0b}
blockquote.warning strong{color:var(--warn-ink)}
blockquote.danger{background:#FEF2F2;border-left-color:#ef4444}
blockquote.danger strong{color:#991B1B}
blockquote.tip{background:var(--ok-bg);border-left-color:#10b981}
blockquote .qlabel{display:block;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;margin-bottom:5px;opacity:.85}

.callout{background:#fff;border:1px solid var(--line);border-left:4px solid var(--cobalt);border-radius:12px;padding:20px 22px;margin:1.6em 0;box-shadow:var(--shadow-sm)}
.callout h3{margin:0 0 8px;font-size:1.1rem}
.callout p:last-child{margin:0}

/* Inline CTA banner */
.cta-banner{background:linear-gradient(120deg,#0B3FCC,#1B5BFF 55%,#3B82F6);color:#fff;border-radius:18px;padding:30px 32px;margin:2em 0;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-banner::before{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%)}
.cta-banner .t{position:relative;z-index:2}
.cta-banner h3{color:#fff;margin:0 0 6px;font-size:1.35rem}
.cta-banner p{color:#dbe6ff;margin:0;font-size:15px;max-width:560px}
.cta-banner .btn{position:relative;z-index:2;background:#fff;color:var(--cobalt-dark);white-space:nowrap}
.cta-banner .btn:hover{background:#f0f5ff;color:var(--cobalt-deep)}
.cta-banner .disc-mini{display:block;font-size:11px;color:#bcd0ff;margin-top:10px;position:relative;z-index:2}

/* FAQ */
.faq{margin:1.6em 0}
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:18px 52px 18px 20px;font-size:1.02rem;font-weight:700;color:var(--ink);cursor:pointer;position:relative;font-family:inherit;line-height:1.45}
.faq-q::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--cobalt);font-weight:400;transition:transform .2s}
.faq-item.open .faq-q::after{transform:translateY(-50%) rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 20px}
.faq-item.open .faq-a{max-height:600px;padding-bottom:18px}
.faq-a p{margin:0 0 .8em;color:var(--slate);font-size:15.5px}

/* TOC sidebar */
.sidebar{position:sticky;top:90px}
.toc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:var(--shadow-sm)}
.toc h4{margin:0 0 12px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.toc ul{list-style:none;margin:0;padding:0}
.toc li{margin:0}
.toc a{display:block;padding:6px 0 6px 12px;border-left:2px solid var(--line);color:var(--slate);font-size:14px;font-weight:500}
.toc a:hover{border-left-color:var(--cobalt);color:var(--cobalt);text-decoration:none}
.side-cta{background:linear-gradient(160deg,#0B3FCC,#1B5BFF);color:#fff;border-radius:14px;padding:22px;margin-top:18px;text-align:center}
.side-cta h4{color:#fff;margin:0 0 8px;font-size:1.1rem;text-transform:none;letter-spacing:0}
.side-cta p{color:#dbe6ff;font-size:13.5px;margin:0 0 14px}
.side-cta .btn{background:#fff;color:var(--cobalt-dark)}

/* Pros / cons */
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:1.6em 0}
.pc{border-radius:14px;padding:22px;border:1px solid var(--line)}
.pc.pros{background:var(--ok-bg);border-color:var(--ok-line)}
.pc.cons{background:var(--warn-bg);border-color:var(--warn-line)}
.pc h3{margin:0 0 12px;font-size:1.1rem}
.pc ul{list-style:none;margin:0;padding:0}
.pc li{padding-left:28px;position:relative;margin:.5em 0;font-size:15px}
.pc.pros li::before{content:"✓";position:absolute;left:0;color:#059669;font-weight:800}
.pc.cons li::before{content:"!";position:absolute;left:2px;color:#d97706;font-weight:800}

/* Steps */
.steps{counter-reset:step;margin:1.6em 0;padding:0;list-style:none}
.steps>li{position:relative;padding:0 0 22px 56px;margin:0}
.steps>li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#2E6BFF,#0B3FCC);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px}
.steps>li::after{content:"";position:absolute;left:18px;top:42px;bottom:4px;width:2px;background:var(--line)}
.steps>li:last-child::after{display:none}
.steps>li h3{margin:4px 0 6px;font-size:1.12rem}
.steps>li p{margin:0;color:var(--slate);font-size:15.5px}

/* Related cards */
.related{margin-top:46px;padding-top:34px;border-top:1px solid var(--line)}
.related h2{margin-top:0}

/* ---------- Footer ---------- */
.site-footer{background:#0B1220;color:#94a3b8;padding:54px 0 30px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
.site-footer .fbrand img{height:34px;margin-bottom:14px;filter:brightness(0) invert(1)}
.site-footer .fbrand p{font-size:13.5px;max-width:320px;color:#94a3b8}
.site-footer h5{color:#e2e8f0;font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin:0 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:.5em 0}
.site-footer a{color:#94a3b8}
.site-footer a:hover{color:#fff;text-decoration:none}
.footer-disc{border-top:1px solid #1e293b;padding-top:22px;font-size:12.5px;line-height:1.6;color:#64748b}
.footer-disc strong{color:#cbd5e1}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:18px;font-size:12.5px;color:#64748b}

/* ---------- Utilities ---------- */
.text-center{text-align:center}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .hero .container{grid-template-columns:1fr;gap:36px;padding-top:44px;padding-bottom:44px}
  .hero-visual{order:-1;max-width:520px}
  .layout{grid-template-columns:1fr}
  .sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
  .toc{display:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  body{font-size:16px}
  .main-nav,.header-right .btn-cta-text{display:none}
  .nav-toggle{display:flex}
  .header-right{margin-left:auto}
  .main-nav{position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:12px 16px 18px;gap:2px;box-shadow:var(--shadow);transform:translateY(-130%);transition:transform .25s;z-index:45}
  body.nav-open .main-nav{transform:translateY(0)}
  .main-nav a{padding:13px 14px;font-size:16px;border-radius:10px}
  .main-nav .btn{margin-top:8px}
  .stats .container{grid-template-columns:1fr 1fr;gap:22px 18px}
  .grid-3,.grid-2,.grid-4,.proscons{grid-template-columns:1fr}
  .sidebar{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px}
  .cta-banner{padding:24px;flex-direction:column;align-items:flex-start}
  .cta-banner .btn{width:100%}
  .hero-badges{position:static;margin-top:16px;display:inline-flex}
}
@media(max-width:440px){
  .footer-grid{grid-template-columns:1fr}
  .topbar .tlinks{display:none}
}

/* reduce motion */
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}}