/* PusatBankSoal.id — Design System (Binance-inspired dark) */
:root{
  --primary:#fcd535; --primary-active:#f0b90b; --primary-dis:#3a3a1f;
  --ink:#181a20; --body:#eaecef; --muted:#707a8a; --muted-strong:#929aa5;
  --hair-dark:#2b3139; --hair-light:#eaecef; --border-strong:#cdd1d6;
  --canvas:#0b0e11; --card:#1e2329; --elevated:#2b3139;
  --canvas-light:#fff; --soft-light:#fafafa;
  --on-primary:#181a20; --on-dark:#fff;
  --up:#0ecb81; --down:#f6465d; --turq:#2dbdb6; --info:#3b82f6;
  --r-sm:4px; --r-md:6px; --r-lg:8px; --r-xl:12px; --r-pill:9999px;
  --s-xs:8px; --s-sm:12px; --s-md:16px; --s-lg:24px; --s-xl:32px; --s-xxl:48px; --s-sec:80px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --num:'IBM Plex Mono','JetBrains Mono',ui-monospace,monospace;
  --maxw:1280px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--canvas);color:var(--body);
  font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.num{font-family:var(--num);font-variant-numeric:tabular-nums}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--s-lg)}
.accent{color:var(--primary)}
.up{color:var(--up)} .down{color:var(--down)}
.muted{color:var(--muted)}
.center{text-align:center}

/* Typography */
h1,h2,h3,h4{font-weight:700;line-height:1.15;letter-spacing:-.5px;color:var(--on-dark)}
.hero-h1{font-size:clamp(34px,6vw,64px);letter-spacing:-1px;line-height:1.08}
h2{font-size:clamp(26px,4vw,40px)} h3{font-size:22px;font-weight:600;letter-spacing:-.3px}
h4{font-size:16px;font-weight:600;letter-spacing:0}
.lead{font-size:clamp(15px,1.6vw,18px);color:var(--muted-strong);line-height:1.6}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--primary)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14px;font-weight:600;border:none;cursor:pointer;border-radius:var(--r-md);
  padding:12px 24px;transition:.15s;font-family:var(--font);line-height:1;white-space:nowrap}
.btn-primary{background:var(--primary);color:var(--on-primary)}
.btn-primary:hover{background:var(--primary-active)}
.btn-pill{border-radius:var(--r-pill);padding:14px 32px}
.btn-secondary{background:var(--card);color:var(--on-dark)}
.btn-secondary:hover{background:var(--elevated)}
.btn-ghost{background:transparent;color:var(--body);border:1px solid var(--hair-dark)}
.btn-ghost:hover{border-color:var(--muted)}
.btn-up{background:var(--up);color:#fff;border-radius:var(--r-sm);padding:8px 20px}
.btn-down{background:var(--down);color:#fff;border-radius:var(--r-sm);padding:8px 20px}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-lg{padding:15px 34px;font-size:15px}
.btn:disabled{background:var(--primary-dis);color:var(--muted);cursor:not-allowed}

/* Nav */
.nav{position:sticky;top:0;z-index:50;height:64px;background:rgba(11,14,17,.9);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--hair-dark)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 var(--s-lg);height:64px;
  display:flex;align-items:center;gap:var(--s-lg)}
.brand{font-weight:800;font-size:19px;letter-spacing:-.5px;color:var(--on-dark);display:flex;align-items:center;gap:8px}
.brand b{color:var(--primary)}
.brand .logo{width:28px;height:28px;background:var(--primary);border-radius:var(--r-md);
  display:grid;place-items:center;color:var(--on-primary);font-weight:900;font-size:15px}
.nav-links{display:flex;gap:22px;margin-left:8px}
.nav-links a{font-size:14px;font-weight:500;color:var(--body);transition:.15s}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;background:none;border:none;color:var(--on-dark);font-size:22px;cursor:pointer}
@media(max-width:900px){
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:var(--card);
    padding:var(--s-md) var(--s-lg);gap:6px;border-bottom:1px solid var(--hair-dark);display:none}
  .nav-links.open{display:flex} .nav-links a{padding:10px 0}
  .nav-toggle{display:block} .nav-right .hide-sm{display:none}
}

/* Layout helpers */
.section{padding:var(--s-sec) 0}
.section-sm{padding:56px 0}
.grid{display:grid;gap:var(--s-lg)}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g2,.g3,.g4{grid-template-columns:1fr}}
.flex{display:flex} .items-center{align-items:center} .between{justify-content:space-between}
.gap{gap:var(--s-md)} .gap-lg{gap:var(--s-lg)} .wrap-flex{flex-wrap:wrap}
.mt{margin-top:var(--s-md)} .mt-lg{margin-top:var(--s-lg)} .mt-xl{margin-top:var(--s-xl)}
.mb{margin-bottom:var(--s-md)} .mb-lg{margin-bottom:var(--s-lg)} .mb-xl{margin-bottom:var(--s-xl)}

/* Cards */
.card{background:var(--card);border-radius:var(--r-xl);padding:var(--s-lg);border:1px solid var(--hair-dark)}
.card-flat{background:var(--card);border-radius:var(--r-lg);padding:var(--s-lg)}
.card:hover.hover-lift{transform:translateY(-3px);transition:.2s;border-color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--r-pill);background:var(--elevated);color:var(--muted-strong)}
.badge-y{background:rgba(252,213,53,.12);color:var(--primary)}
.badge-up{background:rgba(14,203,129,.12);color:var(--up)}
.badge-down{background:rgba(246,70,93,.12);color:var(--down)}
.pill-tab{display:inline-flex;gap:6px;background:var(--card);padding:4px;border-radius:var(--r-pill)}
.pill-tab button{background:none;border:none;color:var(--muted);font-weight:600;font-size:13px;
  padding:8px 16px;border-radius:var(--r-pill);cursor:pointer;font-family:var(--font)}
.pill-tab button.active{background:var(--primary);color:var(--on-primary)}

/* Stat */
.stat-num{font-family:var(--num);font-weight:700;font-size:clamp(28px,4vw,40px);color:var(--primary);letter-spacing:-.3px;line-height:1.1}
.stat-label{color:var(--muted);font-size:13px;margin-top:4px}

/* Table */
.tbl{width:100%;border-collapse:collapse}
.tbl th{text-align:left;color:var(--muted);font-size:12px;font-weight:600;text-transform:uppercase;
  letter-spacing:.5px;padding:12px 14px;border-bottom:1px solid var(--hair-dark)}
.tbl td{padding:14px;border-bottom:1px solid var(--hair-dark);font-size:14px}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:hover td{background:var(--elevated)}
.tbl .num{font-family:var(--num)}
.scroll-x{overflow-x:auto}

/* Progress / bars */
.bar{height:8px;background:var(--elevated);border-radius:var(--r-pill);overflow:hidden}
.bar>span{display:block;height:100%;background:var(--primary);border-radius:var(--r-pill)}
.bar.up>span{background:var(--up)} .bar.down>span{background:var(--down)}

/* FAQ */
.faq details{border-bottom:1px solid var(--hair-dark);padding:20px 0}
.faq summary{cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--on-dark);
  display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--primary);font-size:22px;font-weight:400}
.faq details[open] summary::after{content:'−'}
.faq p{color:var(--muted-strong);margin-top:12px;max-width:70ch}

/* Avatar / icon chips */
.ico{width:44px;height:44px;border-radius:var(--r-lg);display:grid;place-items:center;
  background:rgba(252,213,53,.12);color:var(--primary);font-size:20px;flex:none}
.avatar{width:34px;height:34px;border-radius:50%;background:var(--elevated);display:grid;
  place-items:center;font-weight:700;color:var(--on-dark);font-size:13px;flex:none}
.rank{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:13px;
  background:var(--elevated);color:var(--muted-strong)}
.rank.g1{background:var(--primary);color:var(--on-primary)}
.rank.g2{background:#c0c6ce;color:var(--ink)} .rank.g3{background:#cd9c5c;color:var(--ink)}

/* Footer */
.footer{background:var(--soft-light);color:var(--ink);padding:64px 0 32px}
.footer h5{font-size:13px;font-weight:700;margin-bottom:14px;color:var(--ink)}
.footer a{display:block;color:#5b6672;font-size:13px;padding:5px 0}
.footer a:hover{color:var(--ink)}
.footer .cols{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:var(--s-lg)}
@media(max-width:900px){.footer .cols{grid-template-columns:repeat(2,1fr)}}
.footer .bottom{border-top:1px solid var(--hair-light);margin-top:40px;padding-top:24px;
  color:#5b6672;font-size:12px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* Hero glow accent (subtle, single) */
.hero{position:relative;overflow:hidden;padding:72px 0 64px}
.hero .kpi-row{display:flex;gap:36px;flex-wrap:wrap;margin-top:36px}
.chip-list{display:flex;gap:8px;flex-wrap:wrap}
.chip{font-size:13px;font-weight:500;padding:7px 14px;border-radius:var(--r-pill);
  background:var(--card);border:1px solid var(--hair-dark);color:var(--body)}
.chip:hover{border-color:var(--primary);color:var(--primary)}

/* Utility */
.divider{height:1px;background:var(--hair-dark);border:none;margin:var(--s-sec) 0}
.hide{display:none}
.text-up{color:var(--up)} .text-down{color:var(--down)}

/* Admin panel responsive (prevents fixed-width sidebar from causing
   horizontal page overflow on narrow viewports) */
@media(max-width:780px){
  .admin-shell{flex-direction:column}
  .admin-sidebar{width:100%!important;height:auto!important;position:relative!important;
    top:auto!important;border-right:none;border-bottom:1px solid var(--hair-dark)}
  .admin-main{padding:16px!important}
}