/* =========================================================
   InternetBisnis.id Articles — Professional Reader UI v4.0
   ========================================================= */
:root{
  --ink:#0b1220;
  --ink-2:#1e293b;
  --muted:#64748b;
  --muted-2:#94a3b8;
  --line:rgba(15,23,42,.10);
  --line-strong:rgba(15,23,42,.18);
  --surface:#ffffff;
  --surface-soft:#f8fafc;
  --brand:#155ee8;
  --brand-2:#0f4fc2;
  --accent:#19a7ce;
  --radius-xl:28px;
  --radius-lg:20px;
  --shadow-sm:0 10px 30px rgba(15,23,42,.07);
  --shadow-md:0 22px 70px rgba(15,23,42,.12);
  --content:74ch;
  --page:1120px;
  --font:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, "Noto Sans", sans-serif;
  --mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  line-height:1.75;
  background:
    radial-gradient(800px 360px at 8% -8%,rgba(21,94,232,.13),transparent 62%),
    radial-gradient(760px 330px at 92% 4%,rgba(25,167,206,.11),transparent 62%),
    linear-gradient(180deg,#fff 0%,#f8fbff 48%,#eef4fb 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--brand);text-decoration-thickness:.08em;text-underline-offset:.18em}
a:hover{color:var(--brand-2)}
button,input,select{font:inherit}
::selection{background:rgba(21,94,232,.16)}
.page{width:100%;padding:24px 16px 66px}.container{max-width:var(--page);margin:0 auto}
.sitebar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px;padding:12px 14px;border:1px solid rgba(15,23,42,.08);background:rgba(255,255,255,.78);backdrop-filter:blur(18px);border-radius:999px;box-shadow:var(--shadow-sm)}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;min-width:0}.brand:hover{text-decoration:none}.logo{width:42px;height:42px;border-radius:16px;background:linear-gradient(145deg,var(--brand),var(--accent));box-shadow:0 14px 28px rgba(21,94,232,.24);position:relative;flex:0 0 42px}.logo:after{content:"IB";position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-weight:950;letter-spacing:-.05em}.brand .name{font-weight:950;letter-spacing:-.02em;line-height:1.1}.brand .sub{font-size:.8rem;color:var(--muted);margin-top:1px;line-height:1.2}.actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 15px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);font-weight:900;text-decoration:none;cursor:pointer;white-space:nowrap;transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease}.btn:hover{background:#f8fafc;border-color:var(--line-strong);transform:translateY(-1px);text-decoration:none}.btn-primary{border-color:transparent;background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 14px 30px rgba(21,94,232,.22)}.btn-primary:hover{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2))}
.meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:.9rem}.meta .dot{width:5px;height:5px;border-radius:999px;background:var(--line-strong);display:inline-block}

.article-shell{position:relative;overflow:hidden;border:1px solid rgba(15,23,42,.08);border-radius:var(--radius-xl);background:rgba(255,255,255,.88);box-shadow:var(--shadow-md);padding:clamp(20px,4vw,42px)}.article-shell:before{content:"";position:absolute;inset:0;height:7px;background:linear-gradient(90deg,var(--brand),var(--accent));pointer-events:none}.article-shell header{position:relative}.article-title{max-width:900px;margin:0 0 12px;font-size:clamp(2rem,4.5vw,4.45rem);line-height:1.02;letter-spacing:-.06em;color:var(--ink)}.lede{max-width:var(--content);margin:14px 0 18px;color:var(--ink-2);font-size:clamp(1.04rem,1.5vw,1.22rem);line-height:1.72}.prose{max-width:var(--content);font-size:1.02rem}.prose p{margin:16px 0;color:var(--ink-2)}.prose h2{margin:36px 0 12px;font-size:clamp(1.38rem,2.2vw,1.85rem);line-height:1.2;letter-spacing:-.035em;color:var(--ink)}.prose h3{margin:26px 0 9px;font-size:1.12rem;line-height:1.35;color:var(--ink)}.prose ul,.prose ol{padding-left:22px;margin:12px 0 18px}.prose li{margin:8px 0;color:var(--ink-2)}.prose li::marker{color:var(--brand);font-weight:900}.prose b,.prose strong{color:var(--ink)}.prose a{font-weight:800}.prose blockquote{margin:22px 0;padding:16px 18px;border-left:5px solid var(--brand);background:rgba(21,94,232,.06);border-radius:16px;color:var(--ink-2)}
.callout{max-width:var(--content);margin:20px 0;border:1px solid rgba(21,94,232,.18);background:linear-gradient(135deg,rgba(21,94,232,.08),rgba(25,167,206,.06));border-radius:22px;padding:18px;box-shadow:0 12px 28px rgba(21,94,232,.06)}.callout b{color:var(--ink);font-size:1.02rem}.callout .muted{color:var(--muted);margin-top:6px;line-height:1.62}.callout .actions{margin-top:14px}.toc{max-width:var(--content);margin:22px 0 0;padding:16px;border:1px solid rgba(15,23,42,.08);border-radius:22px;background:#fff;box-shadow:var(--shadow-sm)}.toc h3{margin:0 0 10px;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}.toc nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.toc a{display:flex;align-items:center;padding:9px 11px;border-radius:14px;color:var(--ink-2);font-weight:850;text-decoration:none;background:#f8fafc;border:1px solid rgba(15,23,42,.06)}.toc a:hover{color:var(--brand);background:#fff;border-color:rgba(21,94,232,.18)}.hr{border:0;border-top:1px solid var(--line);margin:24px 0}.article-footer{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:32px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}.badge{font-family:var(--mono);font-size:.76rem;padding:7px 10px;border-radius:999px;border:1px solid var(--line);background:#f8fafc;color:var(--muted)}

.index-hero{position:relative;overflow:hidden;border:1px solid rgba(15,23,42,.08);border-radius:var(--radius-xl);background:rgba(255,255,255,.88);box-shadow:var(--shadow-md);padding:clamp(20px,4vw,38px);margin-bottom:16px}.index-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(520px 220px at 0% 0%,rgba(21,94,232,.10),transparent 70%);pointer-events:none}.index-hero>*{position:relative}.index-hero h1{max-width:790px;margin:0 0 10px;font-size:clamp(2rem,4vw,4.15rem);line-height:1.02;letter-spacing:-.06em}.searchrow{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:10px;margin-top:18px}.search,.select{width:100%;border:1px solid rgba(15,23,42,.14);background:#fff;border-radius:16px;padding:13px 14px;color:var(--ink);outline:none}.search:focus,.select:focus{border-color:rgba(21,94,232,.45);box-shadow:0 0 0 4px rgba(21,94,232,.15)}.list{border:1px solid rgba(15,23,42,.08);border-radius:var(--radius-xl);background:rgba(255,255,255,.84);box-shadow:var(--shadow-sm);padding:18px}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.month-title{grid-column:1/-1;margin:20px 0 0;padding:0 0 6px;border-bottom:1px solid var(--line);color:var(--ink);font-size:1.28rem;letter-spacing:-.035em}.card{position:relative;border:1px solid rgba(15,23,42,.08);border-radius:22px;background:#fff;padding:18px;box-shadow:0 10px 26px rgba(15,23,42,.05);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:rgba(21,94,232,.18)}.card .title{display:block;color:var(--ink);font-size:1.05rem;font-weight:950;line-height:1.34;text-decoration:none;letter-spacing:-.02em}.card .title:hover{color:var(--brand)}.card .desc{margin:8px 0 0;color:var(--muted);line-height:1.62}.card .meta{margin-top:10px;font-size:.82rem}.note{margin-top:16px;border:1px solid rgba(21,94,232,.18);background:linear-gradient(135deg,rgba(21,94,232,.07),rgba(25,167,206,.05));border-radius:22px;padding:18px;color:var(--muted);line-height:1.6}
@media (max-width:820px){.sitebar{border-radius:24px;align-items:flex-start}.actions{width:100%}.actions .btn{flex:1}.toc nav,.cards,.searchrow{grid-template-columns:1fr}.article-shell,.index-hero,.list{border-radius:24px}.page{padding:14px 10px 48px}.article-title{font-size:clamp(2rem,11vw,3.2rem)}}