/* ===========================================================
   Cash Flow Learning Center — "Ledger & River" design system
   Palette: ink teal bg, brass + emerald accents, rust for deficits
   Type: Fraunces (display) / Inter (body) / IBM Plex Mono (numbers)
=========================================================== */

:root{
  --ink:        #0B1F1D;
  --ink-2:      #10322E;
  --surface:    #123330;
  --surface-2:  #17403B;
  --line:       #24504A;
  --paper:      #F2F1E7;
  --paper-dim:  #C9D6D0;
  --muted:      #8FAAA3;
  --brass:      #C9A227;
  --brass-hi:   #E4C158;
  --emerald:    #3FA373;
  --emerald-hi: #5FC392;
  --rust:       #C1502E;
  --rust-hi:    #E06B45;
  --radius:     10px;
  --max:        1120px;
  --shadow:     0 10px 30px rgba(0,0,0,0.35);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Fraunces',Georgia,serif;
  font-weight:600;
  line-height:1.15;
  color:var(--paper);
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2rem,4.5vw,3.4rem); font-weight:700;}
h2{font-size:clamp(1.5rem,3vw,2.1rem);}
h3{font-size:1.3rem;}
p{margin:0 0 1.1em; color:var(--paper-dim);}
a{color:var(--brass-hi);}
a:hover{color:var(--brass);}
.mono{font-family:'IBM Plex Mono',ui-monospace,monospace;}
img{max-width:100%;display:block;}
.container{max-width:var(--max); margin:0 auto; padding:0 20px;}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:.72rem;
  color:var(--emerald-hi);
}

/* ---------- for-sale banner ---------- */
.sale-banner{
  background:var(--brass);
  color:#1a1400;
  text-align:center;
  font-weight:700;
  font-size:.85rem;
  padding:8px 14px;
}
.sale-banner a{color:#1a1400; text-decoration:underline;}

/* ---------- header / nav ---------- */
header.site-header{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,var(--ink),var(--ink-2));
  position:sticky; top:0; z-index:50;
}
.nav-wrap{display:flex; align-items:center; justify-content:space-between; padding:16px 20px;}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none;}
.brand-mark{width:34px;height:34px;flex:none;}
.brand-name{font-family:'Fraunces',serif; font-weight:700; color:var(--paper); font-size:1.15rem;}
.brand-name span{color:var(--brass-hi);}
nav.main-nav{display:flex; gap:26px; align-items:center;}
nav.main-nav a{
  color:var(--paper-dim); text-decoration:none; font-size:.95rem; font-weight:500;
}
nav.main-nav a:hover, nav.main-nav a.active{color:var(--brass-hi);}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--paper);border-radius:8px;padding:8px 10px;}
@media (max-width:820px){
  nav.main-nav{
    position:absolute; top:100%; left:0; right:0; background:var(--ink-2);
    flex-direction:column; align-items:flex-start; padding:14px 20px 20px;
    border-bottom:1px solid var(--line); display:none;
  }
  nav.main-nav.open{display:flex;}
  .nav-toggle{display:block;}
}

/* ---------- social row ---------- */
.social-row{display:flex; gap:12px; align-items:center; flex-wrap:wrap;}
.social-row a{
  display:inline-flex; align-items:center; justify-content:center;
  width:34px; height:34px; border-radius:50%;
  background:var(--surface); border:1px solid var(--line);
  color:var(--paper); transition:transform .15s ease, background .15s ease;
}
.social-row a:hover{background:var(--brass); color:#1a1400; transform:translateY(-2px);}
.social-row svg{width:16px;height:16px; fill:currentColor;}

.share-strip{
  display:flex; flex-wrap:wrap; gap:14px; align-items:center;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--radius);
  padding:14px 18px; margin:18px 0 30px;
}
.share-strip .label{font-size:.85rem; color:var(--muted); margin-right:4px;}
.bookmark-link{
  font-weight:700; color:var(--brass-hi); text-decoration:none; border-bottom:1px dashed var(--brass);
}

/* ---------- hero ---------- */
.hero{
  padding:56px 0 20px;
  background:
    radial-gradient(900px 400px at 80% -10%, rgba(63,163,115,.16), transparent 60%),
    radial-gradient(700px 380px at 10% 0%, rgba(201,162,39,.12), transparent 55%);
}
.hero-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:center;}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr;}}
.hero h1{margin-bottom:.4em;}
.hero .lede{font-size:1.15rem; color:var(--paper-dim); max-width:56ch;}
.stat-line{
  font-family:'IBM Plex Mono',monospace; font-size:.92rem; color:var(--emerald-hi);
  background:rgba(63,163,115,.08); border:1px solid var(--line); border-radius:8px;
  padding:12px 14px; margin:18px 0;
}

/* ---------- river chart card ---------- */
.river-card{
  background:var(--surface); border:1px solid var(--line); border-radius:16px;
  box-shadow:var(--shadow); padding:20px;
}
.river-card .score-row{display:flex; align-items:baseline; gap:14px; margin-bottom:6px;}
.score-num{font-family:'Fraunces',serif; font-size:3.2rem; font-weight:700; color:var(--brass-hi);}
.score-label{color:var(--muted); font-size:.9rem;}
#riverCanvas{width:100%; height:180px; display:block;}

/* ---------- tool section ---------- */
.tool-section{padding:34px 0 60px;}
.tool-panel{
  background:var(--surface); border:1px solid var(--line); border-radius:16px;
  padding:26px; box-shadow:var(--shadow);
}
.tool-grid{display:grid; grid-template-columns:1fr 1fr; gap:26px;}
@media (max-width:900px){.tool-grid{grid-template-columns:1fr;}}
.field-group{margin-bottom:18px;}
.field-group label{display:block; font-size:.85rem; color:var(--paper-dim); margin-bottom:6px;}
.field-row{display:flex; gap:10px; flex-wrap:wrap;}
input[type=text],input[type=number],select{
  background:var(--ink); border:1px solid var(--line); color:var(--paper);
  border-radius:8px; padding:10px 12px; font-family:'IBM Plex Mono',monospace; font-size:.92rem;
}
input[type=number]{width:120px;}
input[type=text]{flex:1; min-width:140px;}
select{min-width:110px;}
.item-row{
  display:flex; gap:8px; align-items:center; margin-bottom:8px; flex-wrap:wrap;
  background:var(--ink-2); border:1px solid var(--line); border-radius:8px; padding:8px 10px;
}
.item-row button.remove{
  background:none; border:none; color:var(--rust-hi); font-size:1.1rem; cursor:pointer; margin-left:auto;
}
.btn{
  display:inline-block; background:var(--brass); color:#1a1400; border:none;
  padding:11px 18px; border-radius:8px; font-weight:700; cursor:pointer; font-size:.92rem;
  text-decoration:none;
}
.btn:hover{background:var(--brass-hi);}
.btn.secondary{background:transparent; border:1px solid var(--emerald); color:var(--emerald-hi);}
.btn.secondary:hover{background:rgba(63,163,115,.12);}
.btn.small{padding:7px 12px; font-size:.82rem;}

.result-cards{display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin:20px 0;}
@media (max-width:760px){.result-cards{grid-template-columns:1fr;}}
.result-card{background:var(--ink-2); border:1px solid var(--line); border-radius:12px; padding:16px;}
.result-card .num{font-family:'Fraunces',serif; font-size:1.9rem; color:var(--emerald-hi); font-weight:700;}
.result-card .num.warn{color:var(--rust-hi);}
.result-card .cap{font-size:.82rem; color:var(--muted); margin-top:4px;}

.gap-list{list-style:none; margin:0; padding:0;}
.gap-list li{
  display:flex; justify-content:space-between; gap:12px; padding:9px 0;
  border-bottom:1px solid var(--line); font-family:'IBM Plex Mono',monospace; font-size:.88rem;
}
.gap-list li:last-child{border-bottom:none;}
.gap-list .amt{color:var(--rust-hi);}

.slider-row{display:flex; align-items:center; gap:14px;}
input[type=range]{flex:1; accent-color:var(--brass);}

/* ---------- how-it-works / sections ---------- */
.section{padding:50px 0;}
.section.alt{background:var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.steps{display:grid; grid-template-columns:repeat(4,1fr); gap:20px; margin-top:24px;}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (max-width:560px){.steps{grid-template-columns:1fr;}}
.step{background:var(--ink-2); border:1px solid var(--line); border-radius:12px; padding:18px;}
.step .eyebrow{display:block; margin-bottom:8px;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line); padding:16px 0;}
.faq-item h3{font-size:1.05rem; margin-bottom:6px; color:var(--brass-hi);}
.faq-item p{margin:0;}

/* ---------- card grids (articles/news) ---------- */
.card-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:26px;}
@media (max-width:900px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.card-grid{grid-template-columns:1fr;}}
.card{
  background:var(--surface); border:1px solid var(--line); border-radius:12px; padding:20px;
  display:flex; flex-direction:column; height:100%;
}
.card .cat{font-family:'IBM Plex Mono',monospace; font-size:.72rem; color:var(--emerald-hi); text-transform:uppercase; letter-spacing:.08em;}
.card h3{margin:8px 0 8px; font-size:1.15rem;}
.card p{flex:1; font-size:.92rem;}
.card .date{font-size:.78rem; color:var(--muted); margin-bottom:6px;}
.card a.readmore{font-weight:700; font-size:.88rem;}

/* ---------- article page ---------- */
.article-header{padding:44px 0 10px;}
.article-header .cat{color:var(--emerald-hi); font-family:'IBM Plex Mono',monospace; font-size:.78rem; text-transform:uppercase; letter-spacing:.08em;}
.article-header h1{margin-top:10px;}
.article-meta{color:var(--muted); font-size:.88rem; margin-bottom:8px;}
.article-body{max-width:74ch; margin:0 auto;}
.article-body h2{margin-top:1.4em;}
.article-body ul, .article-body ol{color:var(--paper-dim); padding-left:1.3em;}
.article-body li{margin-bottom:.4em;}
.callout{
  background:var(--surface); border-left:4px solid var(--brass); border-radius:6px;
  padding:14px 16px; margin:22px 0; font-size:.95rem;
}
.data-table{width:100%; border-collapse:collapse; margin:22px 0; font-size:.9rem;}
.data-table th,.data-table td{border:1px solid var(--line); padding:8px 10px; text-align:left;}
.data-table th{background:var(--surface); color:var(--brass-hi); font-family:'IBM Plex Mono',monospace; font-size:.78rem; text-transform:uppercase;}

/* ---------- facts ticker ---------- */
.facts-wrap{background:var(--ink-2); border-top:1px solid var(--line); padding:50px 0 60px;}
.facts-box{
  background:var(--surface); border:1px solid var(--line); border-radius:14px; padding:26px;
}
.fact-display{min-height:90px; display:flex; align-items:center;}
.fact-num{
  font-family:'Fraunces',serif; color:var(--brass-hi); font-size:1.6rem; margin-right:14px; flex:none;
}
.fact-text{font-size:1.05rem; color:var(--paper);}
.facts-controls{display:flex; justify-content:space-between; align-items:center; margin-top:14px;}
.facts-dots{font-size:.8rem; color:var(--muted); font-family:'IBM Plex Mono',monospace;}

/* ---------- newsletter ---------- */
.newsletter-box{
  background:linear-gradient(135deg,var(--surface),var(--surface-2));
  border:1px solid var(--line); border-radius:16px; padding:30px; text-align:center;
}
.newsletter-box h2{margin-bottom:.3em;}
.newsletter-form{display:flex; gap:10px; justify-content:center; margin-top:18px; flex-wrap:wrap;}
.newsletter-form input[type=email]{
  background:var(--ink); border:1px solid var(--line); color:var(--paper);
  border-radius:8px; padding:12px 14px; min-width:260px; font-family:'Inter',sans-serif;
}

/* ---------- footer ---------- */
footer.site-footer{
  background:var(--ink-2); border-top:1px solid var(--line); padding:44px 0 30px; margin-top:40px;
}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:30px;}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}
.footer-grid h4{font-family:'Inter',sans-serif; font-size:.82rem; text-transform:uppercase; letter-spacing:.08em; color:var(--muted); margin-bottom:12px;}
.footer-grid ul{list-style:none; margin:0; padding:0;}
.footer-grid li{margin-bottom:8px;}
.footer-grid a{color:var(--paper-dim); text-decoration:none; font-size:.92rem;}
.footer-grid a:hover{color:var(--brass-hi);}
.footer-bottom{
  border-top:1px solid var(--line); margin-top:30px; padding-top:20px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  color:var(--muted); font-size:.82rem;
}
.disclaimer-strip{color:var(--muted); font-size:.78rem; max-width:900px; margin-top:6px;}

/* ---------- legal pages ---------- */
.legal-body{max-width:78ch; margin:0 auto;}
.legal-body h2{margin-top:1.4em;}

/* ---------- 404 ---------- */
.notfound{padding:100px 0; text-align:center;}
.notfound .score-num{font-size:5rem;}