/* ============================================================
   Founderplus — Artikel (tone ungu & hijau, ala IG @founderplus)
   ============================================================ */
:root {
  --purple-700: #5B21B6;
  --purple-600: #6D28D9;
  --purple-500: #7C3AED;
  --purple-400: #8B5CF6;
  --purple-100: #F3EEFF;
  --purple-50: #F9F7FF;
  --green-700: #047857;
  --green-600: #059669;
  --green-500: #10B981;
  --green-400: #34D399;
  --green-100: #E7FBF3;
  --ink: #1A1630;
  --body: #4B4668;
  --muted: #7A7494;
  --line: #EAE6F7;
  --white: #FFFFFF;
  --radius: 16px;
  --shadow: 0 14px 40px -14px rgba(109, 40, 217, 0.30);
  --grad: linear-gradient(120deg, var(--purple-600), var(--purple-500) 55%, var(--green-600));
  --grad-soft: linear-gradient(135deg, var(--purple-50), var(--green-100));
  --maxw: 1140px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--body);
  background: var(--white);
  line-height: 1.75;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
h1, h2, h3 { color: var(--ink); line-height: 1.25; }

.container { max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }

/* ---------- Progress bar ---------- */
.progress {
  position: fixed; top: 0; left: 0; height: 4px; width: 0%;
  background: var(--grad); z-index: 90;
}

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 80;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-in { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--ink); }
.brand-logo {
  display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 12px;
  background: var(--grad); color: #fff; font-size: 0.95rem; font-weight: 800;
  box-shadow: 0 6px 16px -6px rgba(124, 58, 237, 0.6);
}
.brand-text em { font-style: normal; color: var(--purple-500); }
.nav { display: flex; align-items: center; gap: 26px; font-size: 0.92rem; font-weight: 600; color: var(--body); }
.nav a { transition: color 0.2s; }
.nav a:hover { color: var(--purple-500); }
.nav-cta {
  background: var(--grad); color: #fff !important;
  padding: 10px 18px; border-radius: 999px; font-size: 0.85rem;
  box-shadow: 0 8px 20px -8px rgba(124, 58, 237, 0.65);
}
.nav-cta:hover { filter: brightness(1.08); }
.burger { display: none; background: none; border: 1px solid var(--line); border-radius: 10px; font-size: 1.2rem; padding: 6px 12px; cursor: pointer; color: var(--ink); }

/* ---------- Breadcrumb ---------- */
.breadcrumb { padding-block: 22px 6px; font-size: 0.82rem; color: var(--muted); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.breadcrumb a { color: var(--purple-500); font-weight: 600; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { color: var(--line); }
.breadcrumb .cur { font-weight: 600; color: var(--ink); }

/* ---------- Article hero ---------- */
.article { padding-block: 16px 70px; }
.badge {
  display: inline-block; background: var(--purple-100); color: var(--purple-600);
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 6px 14px; border-radius: 999px; margin-bottom: 18px;
}
.article-hero h1 {
  font-size: clamp(1.7rem, 4.4vw, 2.8rem);
  font-weight: 800; letter-spacing: -0.01em; max-width: 18ch;
}
.meta { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin: 22px 0 26px; }
.meta-author { display: flex; align-items: center; gap: 12px; }
.avatar {
  display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad); color: #fff; font-weight: 800; font-size: 0.9rem; flex: none;
}
.avatar.lg { width: 64px; height: 64px; font-size: 1.2rem; }
.meta-author strong { color: var(--ink); font-size: 0.95rem; }
.meta-author small { color: var(--muted); font-size: 0.8rem; }
.meta-info { font-size: 0.83rem; color: var(--muted); display: flex; gap: 8px; align-items: center; }
.meta-info .dot { color: var(--purple-400); }

.hero-img { border-radius: var(--radius); overflow: hidden; margin-bottom: 30px; box-shadow: var(--shadow); }
.hero-img img { width: 100%; aspect-ratio: 16 / 7; object-fit: cover; }

.deck {
  font-size: 1.12rem; color: var(--ink); font-weight: 500;
  border-left: 4px solid var(--green-500); padding-left: 18px;
  max-width: 70ch;
}

/* ---------- Layout ---------- */
.article-layout { display: grid; grid-template-columns: 260px 1fr; gap: 46px; margin-top: 40px; }
.article-body { min-width: 0; }
.article-body > p { margin-bottom: 18px; font-size: 1.03rem; }
.article-body h2 {
  font-size: 1.55rem; margin: 44px 0 14px; font-weight: 800;
  padding-top: 8px;
}
.article-body h3 { font-size: 1.18rem; margin: 30px 0 10px; font-weight: 700; }
.article-body h2::before {
  content: ""; display: block; width: 44px; height: 5px; border-radius: 3px;
  background: var(--grad); margin-bottom: 12px;
}

/* ---------- Lanes ---------- */
.lanes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0; }
.lane {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; background: var(--grad-soft);
  transition: transform 0.2s, box-shadow 0.2s;
}
.lane:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.lane-no {
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--purple-500);
}
.lane h3 { font-size: 1rem; margin: 6px 0 8px; }
.lane p { font-size: 0.86rem; }

/* ---------- Blockquote / lists ---------- */
blockquote {
  background: var(--purple-50); border: 1px solid var(--line);
  border-left: 4px solid var(--purple-500);
  padding: 20px 24px; border-radius: 0 var(--radius) var(--radius) 0;
  margin: 26px 0; font-style: italic;
}
blockquote p { margin: 0; }

ul.check { list-style: none; margin: 0 0 18px; }
ul.check li { padding-left: 28px; position: relative; margin-bottom: 10px; }
ul.check li::before {
  content: "✔"; position: absolute; left: 0; top: 1px;
  color: var(--green-600); font-weight: 800; font-size: 0.9rem;
}
ol.numbered { margin: 0 0 20px; padding-left: 22px; }
ol.numbered li { margin-bottom: 12px; }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; margin: 22px 0; border-radius: var(--radius); border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 520px; }
thead th { background: var(--purple-600); color: #fff; text-align: left; padding: 13px 16px; font-size: 0.85rem; }
tbody td { padding: 13px 16px; border-top: 1px solid var(--line); }
tbody tr:nth-child(even) { background: var(--purple-50); }
tbody tr:hover td { background: var(--green-100); }

/* ---------- FAQ ---------- */
.faq { margin: 18px 0 26px; }
.faq details {
  border: 1px solid var(--line); border-radius: 12px; margin-bottom: 10px;
  background: #fff; overflow: hidden;
}
.faq summary {
  cursor: pointer; padding: 15px 18px; font-weight: 700; color: var(--ink);
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq summary::after { content: "+"; color: var(--purple-500); font-size: 1.3rem; font-weight: 800; }
.faq details[open] summary::after { content: "–"; }
.faq details[open] { border-color: var(--purple-400); }
.faq details p { padding: 0 18px 16px; font-size: 0.95rem; }

.closing { font-size: 1.05rem; font-weight: 500; color: var(--ink); }

/* ---------- CTA ---------- */
.cta {
  margin: 34px 0 10px; padding: 26px;
  background: linear-gradient(120deg, var(--purple-600), var(--green-600));
  border-radius: var(--radius); color: #fff;
  display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center;
  box-shadow: 0 20px 50px -18px rgba(5, 150, 105, 0.5);
}
.cta-icon { width: 52px; height: 52px; border-radius: 50%; background: rgba(255,255,255,0.18); display: grid; place-items: center; font-size: 1.5rem; }
.cta h3 { color: #fff; font-size: 1.1rem; margin-bottom: 4px; }
.cta p { color: rgba(255,255,255,0.9); font-size: 0.92rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 700; font-size: 0.9rem;
  cursor: pointer; border: 0; transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-wa { background: #fff; color: var(--purple-600); box-shadow: 0 10px 24px -10px rgba(0,0,0,0.35); }
.btn-grad { background: var(--grad); color: #fff; box-shadow: 0 10px 24px -10px rgba(124, 58, 237, 0.7); }
.btn-ghost {
  background: var(--purple-100); color: var(--purple-600);
  padding: 10px 18px; font-size: 0.85rem;
}
.btn-ghost:hover { background: var(--purple-600); color: #fff; }

/* ---------- TOC ---------- */
.toc { position: sticky; top: 96px; align-self: start; }
.toc-title { font-size: 0.75rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.toc ol { list-style: none; }
.toc li { margin-bottom: 4px; }
.toc a {
  display: block; padding: 8px 12px; border-radius: 10px;
  font-size: 0.85rem; color: var(--body); border-left: 3px solid transparent;
}
.toc a:hover { background: var(--purple-50); color: var(--purple-600); }
.toc a.active { background: var(--grad-soft); color: var(--purple-600); border-left-color: var(--purple-500); font-weight: 700; }

/* ---------- Author bio ---------- */
.author-bio { background: var(--grad-soft); border-block: 1px solid var(--line); }
.author-in {
  display: flex; align-items: center; gap: 22px; padding-block: 40px; flex-wrap: wrap;
}
.author-in h2 { font-size: 1.2rem; margin-bottom: 6px; }
.author-in p { font-size: 0.94rem; max-width: 62ch; }
.author-in a { color: var(--purple-600); font-weight: 700; }
.author-in a:hover { text-decoration: underline; }
.tag-ig {
  margin-left: auto; background: var(--green-100); color: var(--green-700);
  border: 1px solid var(--green-400); font-weight: 800; font-size: 0.85rem;
  padding: 8px 16px; border-radius: 999px;
}

/* ---------- Related ---------- */
.related { padding-block: 60px; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 26px; flex-wrap: wrap; }
.section-head h2 { font-size: 1.5rem; font-weight: 800; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  display: block; transition: transform 0.22s, box-shadow 0.22s; background: #fff;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.card-thumb { aspect-ratio: 16 / 9; display: grid; place-items: center; font-size: 2rem; }
.g1 { background: linear-gradient(135deg, var(--purple-100), var(--purple-400)); }
.g2 { background: linear-gradient(135deg, var(--green-100), var(--green-400)); }
.g3 { background: linear-gradient(135deg, var(--purple-50), var(--green-100)); }
.card-body { padding: 18px 20px 20px; }
.card-cat { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; color: var(--green-600); }
.card h3 { font-size: 1.02rem; margin: 8px 0 10px; }
.card-meta { font-size: 0.8rem; color: var(--muted); }

/* ---------- Newsletter ---------- */
.newsletter { background: var(--ink); color: #fff; padding-block: 44px; }
.news-in { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.newsletter h2 { color: #fff; font-size: 1.3rem; margin-bottom: 6px; }
.newsletter p { color: rgba(255,255,255,0.7); font-size: 0.92rem; }
.news-form { display: flex; gap: 10px; flex-wrap: wrap; }
.news-form input {
  padding: 13px 18px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.08); color: #fff; min-width: 260px; font-size: 0.92rem;
}
.news-form input::placeholder { color: rgba(255,255,255,0.45); }
.news-form input:focus { outline: 2px solid var(--green-400); }
.news-ok { color: var(--green-400) !important; font-weight: 700; }

/* ---------- Footer ---------- */
.footer { background: #120D26; color: rgba(255,255,255,0.75); padding-block: 52px 28px; }
.footer-in { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; }
.footer .brand-text { color: #fff; }
.footer .brand-text em { color: var(--green-400); }
.footer-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 0.88rem; max-width: 34ch; }
.footer-col h4 { color: #fff; font-size: 0.85rem; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.08em; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.9rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--green-400); }
.footer-legal {
  margin-top: 40px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,0.12);
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-size: 0.78rem; color: rgba(255,255,255,0.45);
}
.mono-note { font-family: ui-monospace, "Cascadia Code", monospace; }

/* ---------- Back to top ---------- */
.totop {
  position: fixed; right: 20px; bottom: 20px; z-index: 70;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad); color: #fff; border: 0; font-size: 1.1rem; cursor: pointer;
  box-shadow: 0 12px 28px -10px rgba(124, 58, 237, 0.7);
  opacity: 0; pointer-events: none; transition: opacity 0.3s, transform 0.3s;
}
.totop.show { opacity: 1; pointer-events: auto; }
.totop:hover { transform: translateY(-3px); }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .article-layout { grid-template-columns: 1fr; }
  .toc { position: static; margin-bottom: 8px; }
  .toc ol { display: flex; flex-wrap: wrap; gap: 6px; }
  .toc li { margin: 0; }
  .toc a { border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 0.8rem; }
  .toc a.active { border-color: var(--purple-500); }
  .lanes { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .cta { grid-template-columns: 1fr; text-align: center; }
  .cta-icon { margin-inline: auto; }
  .footer-in { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .nav {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; gap: 4px;
    background: #fff; border-bottom: 1px solid var(--line); padding: 14px 24px 20px;
    box-shadow: 0 30px 40px -20px rgba(26, 22, 48, 0.25);
    transform: translateY(-130%); transition: transform 0.3s ease; align-items: stretch;
    text-align: center;
  }
  .nav.open { transform: none; }
  .nav a { padding: 10px 0; }
  .burger { display: block; }
  .hero-img img { aspect-ratio: 16 / 10; }
  .news-in { flex-direction: column; align-items: stretch; }
  .news-form { width: 100%; }
  .news-form input { flex: 1; min-width: 0; }
  .footer-in { grid-template-columns: 1fr; }
  .tag-ig { margin-left: 0; }
  .article-body h2 { font-size: 1.35rem; }
}