/* ============================================================
   AI Income Blueprint — Design System
   Fonts: Clash Display (display) + DM Sans (body)
   Palette: warm editorial light + OLED-dark hero moments
============================================================ */

:root{
  --ink:#141215;
  --ink-soft:#4a4650;
  --paper:#faf8f4;
  --paper-raised:#ffffff;
  --line:rgba(20,18,21,0.08);
  --line-strong:rgba(20,18,21,0.14);
  --gold:#b8863f;
  --gold-soft:#e8d5b0;
  --indigo:#3d3a6b;
  --teal:#2f6f63;
  --near-black:#0b0a0d;
  --near-black-raised:#141218;
  --radius-lg:2rem;
  --radius-md:1.25rem;
  --radius-sm:0.75rem;
  --ease:cubic-bezier(0.32,0.72,0,1);
  --maxw:1280px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'DM Sans',system-ui,sans-serif;
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  min-height:100dvh;
}
h1,h2,h3,h4{
  font-family:'Clash Display',var(--font-fallback),sans-serif;
  font-weight:600;
  line-height:1.08;
  letter-spacing:-0.02em;
  margin:0 0 0.5em;
  color:var(--ink);
}
p{margin:0 0 1.3em;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul,ol{padding-left:1.25em;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.container-narrow{max-width:820px;margin:0 auto;padding:0 24px;}

/* ---------- Eyebrow / Pills ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:11px;letter-spacing:0.18em;text-transform:uppercase;
  font-weight:700;background:rgba(184,134,63,0.1);color:var(--gold);
  border:1px solid rgba(184,134,63,0.25);
}
.eyebrow.on-dark{background:rgba(255,255,255,0.08);color:var(--gold-soft);border-color:rgba(255,255,255,0.14);}

/* ---------- Nav ---------- */
.nav-wrap{position:sticky;top:0;z-index:60;padding:14px 16px;pointer-events:none;}
.nav{
  pointer-events:auto;
  max-width:1180px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 10px 10px 22px;
  background:rgba(250,248,244,0.72);
  backdrop-filter:blur(20px) saturate(160%);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  border:1px solid var(--line-strong);
  border-radius:999px;
  box-shadow:0 8px 30px rgba(20,18,21,0.06);
  transition:all 0.5s var(--ease);
}
.nav-logo{display:flex;align-items:center;gap:9px;font-family:'Clash Display',sans-serif;font-weight:600;font-size:16.5px;}
.nav-logo .dot{width:9px;height:9px;border-radius:50%;background:var(--gold);flex:none;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--ink-soft);transition:color 0.3s var(--ease);white-space:nowrap;}
.nav-links a:hover{color:var(--ink);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:#fff;
  padding:11px 8px 11px 20px;border-radius:999px;
  font-size:14px;font-weight:600;
  transition:transform 0.5s var(--ease);
}
.nav-cta:hover{transform:scale(1.02);}
.nav-cta .icon-circle{
  width:30px;height:30px;border-radius:50%;background:rgba(255,255,255,0.14);
  display:flex;align-items:center;justify-content:center;transition:transform 0.5s var(--ease);
}
.nav-cta:hover .icon-circle{transform:translate(2px,-2px) scale(1.06);}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;pointer-events:auto;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;transition:transform 0.4s var(--ease),opacity 0.3s var(--ease);}
.mobile-menu{
  position:fixed;inset:0;z-index:70;
  background:rgba(11,10,13,0.94);backdrop-filter:blur(30px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;
  opacity:0;pointer-events:none;transition:opacity 0.5s var(--ease);
}
.mobile-menu.open{opacity:1;pointer-events:auto;}
.mobile-menu a{
  font-family:'Clash Display',sans-serif;font-size:28px;color:#fff;
  opacity:0;transform:translateY(48px);transition:all 0.6s var(--ease);
}
.mobile-menu.open a{opacity:1;transform:translateY(0);}
.mobile-menu .close-btn{position:absolute;top:24px;right:24px;color:#fff;background:none;border:none;font-size:28px;cursor:pointer;}

@media (max-width:860px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .nav-cta{display:none;}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 10px 15px 26px;border-radius:999px;
  font-size:15px;font-weight:600;
  transition:transform 0.5s var(--ease),background 0.4s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{transform:scale(1.02);}
.btn-primary .icon-circle{background:rgba(255,255,255,0.16);}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong);padding:14px 22px;}
.btn-outline:hover{background:rgba(20,18,21,0.04);}
.icon-circle{width:32px;height:32px;border-radius:50%;background:rgba(20,18,21,0.06);display:flex;align-items:center;justify-content:center;transition:transform 0.5s var(--ease);flex:none;}
.btn:hover .icon-circle{transform:translate(2px,-2px) scale(1.06);}

/* ---------- Hero (dark) ---------- */
.hero{
  position:relative;background:var(--near-black);color:#fff;
  padding:150px 0 110px;overflow:hidden;
  border-radius:0 0 40px 40px;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(60% 50% at 18% 12%, rgba(184,134,63,0.22), transparent 60%),
    radial-gradient(50% 45% at 88% 82%, rgba(61,58,107,0.28), transparent 60%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:900px;}
.hero h1{font-size:clamp(2.6rem,5.4vw,4.6rem);color:#fff;max-width:14ch;}
.hero p.lead{font-size:19px;color:rgba(255,255,255,0.72);max-width:56ch;margin-bottom:2em;}
.hero-cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:56px;}
.hero .btn-outline{color:#fff;border-color:rgba(255,255,255,0.22);}
.hero .btn-outline:hover{background:rgba(255,255,255,0.06);}
.stat-row{display:flex;gap:40px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,0.12);padding-top:28px;}
.stat-row .stat b{display:block;font-family:'Clash Display',sans-serif;font-size:26px;color:var(--gold-soft);}
.stat-row .stat span{font-size:13px;color:rgba(255,255,255,0.55);}

/* Article/hub page hero — smaller, light */
.page-hero{padding:56px 0 34px;border-bottom:1px solid var(--line);}
.page-hero .kicker{color:var(--gold);font-weight:700;font-size:13px;letter-spacing:0.1em;text-transform:uppercase;margin-bottom:14px;display:block;}
.page-hero h1{font-size:clamp(2rem,4vw,3.1rem);max-width:20ch;}
.page-hero .sub{font-size:17px;color:var(--ink-soft);max-width:62ch;}
.meta-row{display:flex;gap:18px;flex-wrap:wrap;align-items:center;margin-top:22px;font-size:13.5px;color:var(--ink-soft);}
.meta-row .sep{width:3px;height:3px;border-radius:50%;background:var(--line-strong);}

/* ---------- Sections ---------- */
section{padding:88px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:52px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.9rem,3.4vw,2.8rem);max-width:16ch;}
.section-head p{color:var(--ink-soft);max-width:44ch;margin:0;}

/* ---------- Double-bezel card ---------- */
.card-shell{
  background:rgba(20,18,21,0.035);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:8px;
  transition:transform 0.6s var(--ease),box-shadow 0.6s var(--ease);
}
.card-shell:hover{transform:translateY(-4px);box-shadow:0 20px 44px rgba(20,18,21,0.09);}
.card-core{
  background:var(--paper-raised);border-radius:calc(var(--radius-lg) - 8px);
  padding:30px;height:100%;display:flex;flex-direction:column;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.6);
}
.card-core .icon-wrap{
  width:52px;height:52px;border-radius:16px;
  background:linear-gradient(145deg,var(--gold-soft),rgba(184,134,63,0.18));
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.card-core h3{font-size:21px;margin-bottom:10px;}
.card-core p{color:var(--ink-soft);font-size:15px;margin-bottom:0;flex:1;}
.card-core .tag{font-size:12px;font-weight:700;color:var(--gold);text-transform:uppercase;letter-spacing:0.08em;margin-bottom:12px;display:block;}

/* ---------- Category grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;grid-auto-flow:dense;}
.cat-grid .card-shell{grid-column:span 4;}
.cat-grid .card-shell.wide{grid-column:span 8;}
@media (max-width:980px){.cat-grid .card-shell,.cat-grid .card-shell.wide{grid-column:span 12;}}

/* ---------- Article listing grid ---------- */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
@media (max-width:980px){.article-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.article-grid{grid-template-columns:1fr;}}
.article-card{display:block;}
.article-card .thumb{
  height:150px;border-radius:16px;margin-bottom:18px;position:relative;overflow:hidden;
  display:flex;align-items:flex-end;padding:14px;
  background-size:cover;background-position:center;
}
.article-card .thumb span{position:relative;z-index:2;color:#fff;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;background:rgba(0,0,0,0.32);padding:5px 10px;border-radius:999px;backdrop-filter:blur(6px);}
.article-card h3{font-size:18.5px;margin-bottom:8px;}
.article-card p{font-size:14.5px;color:var(--ink-soft);margin-bottom:10px;}
.article-card .read-time{font-size:12.5px;color:var(--ink-soft);font-weight:600;}

/* Hero background image (homepage) */
.hero{background-size:cover;background-position:center;}
.hero::after{
  content:'';position:absolute;inset:0;background:linear-gradient(180deg, rgba(11,10,13,0.55) 0%, rgba(11,10,13,0.88) 78%);
  pointer-events:none;
}

/* Hub page banner image */
.hub-banner{
  height:280px;border-radius:32px;margin:0 0 12px;position:relative;overflow:hidden;
  background-size:cover;background-position:center;
}
.hub-banner::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg, rgba(11,10,13,0.65) 0%, rgba(11,10,13,0.15) 55%, transparent 80%);}
@media(max-width:640px){.hub-banner{height:180px;border-radius:22px;}}

/* thumb color variants */
.thumb-gold{background:linear-gradient(140deg,#c9a15a,#8a6a35);}
.thumb-indigo{background:linear-gradient(140deg,#4c4890,#2a2750);}
.thumb-teal{background:linear-gradient(140deg,#3f8f7f,#1e4a41);}
.thumb-ink{background:linear-gradient(140deg,#2c2a30,#0b0a0d);}
.thumb-rose{background:linear-gradient(140deg,#a4576b,#5c2632);}
.thumb-slate{background:linear-gradient(140deg,#5a6472,#282e37);}

/* ---------- Prose (article body) ---------- */
.prose{max-width:740px;}
.prose h2{font-size:clamp(1.5rem,2.6vw,2.05rem);margin-top:2em;}
.prose h3{font-size:1.32rem;margin-top:1.7em;}
.prose p{color:#2a2730;font-size:17px;}
.prose ul,.prose ol{color:#2a2730;font-size:17px;margin-bottom:1.4em;}
.prose li{margin-bottom:0.5em;}
.prose strong{color:var(--ink);}
.prose blockquote{
  margin:2em 0;padding:22px 26px;border-left:3px solid var(--gold);
  background:rgba(184,134,63,0.06);border-radius:0 14px 14px 0;font-style:italic;color:var(--ink-soft);
}
.prose .callout{
  background:var(--paper-raised);border:1px solid var(--line);border-radius:18px;padding:24px 26px;margin:2.2em 0;
}
.prose .callout .tag{color:var(--gold);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:0.08em;display:block;margin-bottom:8px;}
.prose table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;}
.prose th{font-family:'Clash Display',sans-serif;font-weight:600;color:var(--ink);}
.toc{background:var(--paper-raised);border:1px solid var(--line);border-radius:18px;padding:22px 26px;margin-bottom:2.4em;}
.toc .tag{color:var(--gold);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:0.08em;display:block;margin-bottom:12px;}
.toc ol{margin:0;padding-left:1.15em;}
.toc a{color:var(--ink-soft);font-size:15px;}
.toc a:hover{color:var(--gold);}
.toc li{margin-bottom:8px;}

/* Author / E-E-A-T strip */
.author-strip{display:flex;align-items:center;gap:14px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:2.4em 0;}
.author-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(140deg,var(--gold),#8a6a35);flex:none;}
.author-strip .name{font-weight:700;font-size:14.5px;}
.author-strip .role{font-size:13px;color:var(--ink-soft);}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line);padding:22px 0;}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-family:'Clash Display',sans-serif;font-size:18px;gap:20px;}
.faq-q .plus{width:26px;height:26px;border-radius:50%;background:rgba(20,18,21,0.06);flex:none;display:flex;align-items:center;justify-content:center;transition:transform 0.4s var(--ease);}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.5s var(--ease);color:var(--ink-soft);font-size:15.5px;}
.faq-item.open .faq-a{max-height:400px;}
.faq-a-inner{padding:14px 0 4px;}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--near-black);color:#fff;border-radius:40px;padding:70px 60px;
  position:relative;overflow:hidden;text-align:center;
}
.cta-band::before{content:'';position:absolute;inset:0;background:radial-gradient(55% 60% at 50% 0%,rgba(184,134,63,0.24),transparent 65%);}
.cta-band h2{position:relative;z-index:2;color:#fff;max-width:18ch;margin:0 auto 18px;}
.cta-band p{position:relative;z-index:2;color:rgba(255,255,255,0.68);max-width:48ch;margin:0 auto 30px;}
.cta-band .btn-row{position:relative;z-index:2;display:flex;justify-content:center;gap:14px;flex-wrap:wrap;}
@media(max-width:640px){.cta-band{padding:54px 26px;border-radius:28px;}}

/* ---------- Footer ---------- */
footer{background:var(--near-black);color:rgba(255,255,255,0.7);padding:80px 0 30px;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,0.1);}
.footer-grid h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:0.1em;margin-bottom:18px;}
.footer-grid a{display:block;font-size:14.5px;color:rgba(255,255,255,0.6);margin-bottom:11px;transition:color 0.3s var(--ease);}
.footer-grid a:hover{color:var(--gold-soft);}
.footer-logo{font-family:'Clash Display',sans-serif;color:#fff;font-size:20px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.footer-logo .dot{width:9px;height:9px;border-radius:50%;background:var(--gold);}
.footer-grid p{font-size:14px;color:rgba(255,255,255,0.5);max-width:34ch;}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;padding-top:26px;font-size:13px;color:rgba(255,255,255,0.42);}
.footer-bottom a{color:rgba(255,255,255,0.55);}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr;}}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(36px);filter:blur(4px);transition:opacity 0.9s var(--ease),transform 0.9s var(--ease),filter 0.9s var(--ease);}
.reveal.in{opacity:1;transform:translateY(0);filter:blur(0);}

/* ---------- Sidebar (article layout) ---------- */
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:60px;align-items:start;}
@media(max-width:980px){.article-layout{grid-template-columns:1fr;}.article-layout .sidebar{display:none;}}
.sidebar{position:sticky;top:104px;}
.sidebar .card-shell{margin-bottom:20px;}
.sidebar h4{font-size:14px;text-transform:uppercase;letter-spacing:0.08em;color:var(--gold);margin-bottom:14px;}
.sidebar .mini-link{display:block;font-size:14.5px;padding:10px 0;border-bottom:1px solid var(--line);color:var(--ink-soft);}
.sidebar .mini-link:hover{color:var(--gold);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{font-size:13px;color:var(--ink-soft);margin-bottom:20px;}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--gold);}
.breadcrumb .sep{margin:0 8px;opacity:0.5;}

/* ---------- Form ---------- */
.form-field{margin-bottom:18px;}
.form-field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;}
.form-field input,.form-field textarea{
  width:100%;padding:14px 16px;border-radius:12px;border:1.5px solid var(--line-strong);
  font-family:'DM Sans',sans-serif;font-size:15px;background:var(--paper-raised);transition:border-color 0.3s var(--ease);
}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--gold);}
.form-note{font-size:12.5px;color:var(--ink-soft);margin-top:14px;}
#formStatus{margin-top:14px;font-size:14px;font-weight:600;}

/* ---------- Misc ---------- */
.divider-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
.divider-list .num{font-family:'Clash Display',sans-serif;color:var(--gold);font-size:15px;flex:none;width:28px;}
.pill-nav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px;}
.pill-nav a{padding:9px 18px;border-radius:999px;border:1px solid var(--line-strong);font-size:13.5px;font-weight:600;color:var(--ink-soft);transition:all 0.3s var(--ease);}
.pill-nav a:hover,.pill-nav a.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.trust-badges{display:flex;gap:28px;flex-wrap:wrap;margin-top:30px;}
.trust-badges .item{display:flex;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,0.55);}