/*
Theme Name: NovaFluxT
Theme URI: https://novafluxt.com/
Author: TEAM NOVAFLUX
Author URI: https://novafluxt.com/
Description: Lightweight custom theme for NovaFluxT — free online finance calculators. Vanilla CSS, no frameworks, no jQuery, deferred scripts. Mobile-first.
Version: 1.1.11
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: novaflux
*/

/* ── 1. TOKENS (design/site1-brand.md) ─────────────────────────────── */
:root{
  --ink:#0B1F3A;
  --ink-deep:#071426;
  --primary:#0FB57C;
  --primary-hover:#0C9A68;
  --primary-soft:#E3F7EF;
  --primary-text:#0C7A52;          /* small text on white — contrast-safe */
  --accent-sky:#38BDF8;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --text:#0F1E33;
  --muted:#5B6B82;
  --border:#E2E8F2;
  --input-border:#C7D3E4;
  --focus-ring:rgba(15,181,124,.35);
  --warning:#F59E0B;
  --danger:#E5484D;
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:24px;
  --font-display:'Sora',-apple-system,BlinkMacSystemFont,'Segoe UI',Inter,Roboto,sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,'Segoe UI',Inter,Roboto,'Helvetica Neue',Arial,sans-serif;
  --font-mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --shadow-card:0 1px 2px rgba(11,31,58,.06),0 8px 24px rgba(11,31,58,.08);
  --shadow-panel:0 2px 4px rgba(11,31,58,.06),0 16px 40px rgba(11,31,58,.10);
}

/* ── 2. BASE ───────────────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-body);background:var(--bg);color:var(--text);
  line-height:1.6;font-size:16px}
img,svg,canvas{max-width:100%}
a{color:var(--primary-text)}
a:hover{color:var(--primary-hover)}
:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.wrap{padding:0 32px}}

/* H1 32px mobile → 44px desktop (FIX-LIST §4: design system spec, not 42px) */
h1{font-family:var(--font-display);font-size:32px;line-height:1.15;
  letter-spacing:-.02em;margin:0 0 12px;color:var(--text)}
@media(min-width:768px){h1{font-size:44px}}
h2{font-family:var(--font-display);font-size:24px;line-height:1.25;margin:40px 0 12px}
@media(min-width:768px){h2{font-size:30px}}
h3{font-family:var(--font-display);font-size:18px;line-height:1.35;margin:0 0 6px}
@media(min-width:768px){h3{font-size:20px}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;
  padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* ── 3. HEADER ─────────────────────────────────────────────────────── */
/* Sticky on desktop/tablet. On mobile (≤767px) the header is STATIC so the
 * fixed footer_sticky ad bar is the only fixed element (ad-slot-map rule §3.6). */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border)}
@media(max-width:767px){header.site{position:static}}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);
  font-weight:700;font-size:19px;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.brand svg{flex:none}
.brand .wordmark{color:var(--ink)}
.brand .flux{color:var(--primary)}
.nav-links{display:none;gap:24px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--muted);text-decoration:none;font-size:15px;font-weight:500}
.nav-links a:hover{color:var(--text)}
@media(min-width:900px){.nav-links{display:flex}}

/* Mobile nav: hamburger + dropdown panel (≤899px). Pure CSS panel;
 * the toggle behavior is a few lines of vanilla JS in header.php. */
.nav-toggle{display:none}
@media(max-width:899px){
  header.site{position:relative}
  .nav-toggle{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;
    gap:5px;width:44px;height:44px;background:transparent;border:1px solid var(--border);
    border-radius:10px;cursor:pointer;flex:none}
  .nav-toggle .bar{display:block;width:20px;height:2px;background:var(--ink);
    border-radius:2px;transition:transform .18s,opacity .18s}
  .nav-toggle:hover{background:#EDF2F9}
  header.site.nav-open .nav-toggle .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
  header.site.nav-open .nav-toggle .bar:nth-child(2){opacity:0}
  header.site.nav-open .nav-toggle .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-links-wrap{display:none;position:absolute;top:100%;left:0;right:0;z-index:60;
    background:var(--surface);border-bottom:1px solid var(--border);
    box-shadow:0 16px 32px rgba(11,31,58,.12)}
  header.site.nav-open .nav-links-wrap{display:block}
  .nav-links{display:block;padding:8px 20px 16px}
  .nav-links li{border-bottom:1px solid var(--border)}
  .nav-links li:last-child{border-bottom:none}
  .nav-links a{display:flex;align-items:center;min-height:44px;padding:10px 0;
    font-size:16px;color:var(--text)}
}

/* ── 4. AD SLOTS (official taxonomy names — FIX-LIST §1) ───────────── */
/* Containers render ONLY when the novaflux_slot hook produces output
 * (see functions.php novaflux_slot()). Min-heights reserve space per the
 * CLS guard (ad-slot-map §3, safety rule 4). */
.nf-slot{margin:24px auto;text-align:center}
.nf-ad-label{display:block;font-size:12px;font-weight:600;color:var(--muted);
  letter-spacing:.06em;margin-bottom:6px}
.nf-slot-header_leaderboard{min-height:100px}            /* 320×100 mobile */
@media(min-width:768px){.nf-slot-header_leaderboard{min-height:90px}}   /* 728×90 */
@media(min-width:1024px){.nf-slot-header_leaderboard{min-height:250px}} /* 970×250 */
.nf-slot-in_tool_top{min-height:100px}
@media(min-width:768px){.nf-slot-in_tool_top{min-height:90px}}
.nf-slot-in_tool_bottom{min-height:100px}
@media(min-width:768px){.nf-slot-in_tool_bottom{min-height:90px}}
.nf-slot-sidebar_box{min-height:250px}                    /* 300×250 / 300×600 */
.nf-slot-between_faq{min-height:100px}
@media(min-width:768px){.nf-slot-between_faq{min-height:280px}}
.nf-slot-category_grid_mid{min-height:280px;height:100%}

/* ── 5. HERO (front page) ──────────────────────────────────────────── */
.hero{background:linear-gradient(135deg,var(--ink) 0%,var(--ink-deep) 100%);
  color:#fff;border-radius:var(--radius-xl);padding:40px 24px;margin:24px 0 8px;
  text-align:center;box-shadow:var(--shadow-panel)}
@media(min-width:768px){.hero{padding:64px 48px}}
.hero h1{color:#fff;max-width:20ch;margin-left:auto;margin-right:auto}
.hero .flux{color:#2BD98F}
.hero p.lede{color:#B9C6DA;font-size:18px;max-width:56ch;margin:0 auto 24px}
.hero-search{display:flex;flex-direction:column;gap:10px;max-width:560px;margin:0 auto}
@media(min-width:640px){.hero-search{flex-direction:row}}
.hero-search input{flex:1;min-width:0;min-height:52px;border:1px solid transparent;
  border-radius:var(--radius-md);padding:0 16px;font-size:16px;font-family:var(--font-body)}
.hero-search .btn{width:100%}
@media(min-width:640px){.hero-search .btn{width:auto}}
.trust-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.trust-chips span{font-size:12px;font-weight:700;background:rgba(255,255,255,.12);
  color:#EAF1FA;border-radius:999px;padding:6px 14px}

/* ── 6. BUTTONS / CARDS / GRIDS ────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;
  padding:0 28px;border-radius:var(--radius-md);font-family:var(--font-display);
  font-weight:600;font-size:16px;border:none;cursor:pointer;text-decoration:none;
  background:var(--primary);color:#fff;transition:background .15s,transform .15s}
.btn:hover{background:var(--primary-hover);transform:translateY(-1px);color:#fff}
.btn-secondary{background:transparent;border:1px solid var(--input-border);color:var(--ink)}
.btn-secondary:hover{background:#EDF2F9;color:var(--ink);transform:none}

.section{padding:40px 0 8px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;
  gap:16px;margin-bottom:20px}
.section-head h2{margin:0}
.section-head a{font-size:14px;font-weight:600;white-space:nowrap}

.card-grid{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.tool-card{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:24px;text-decoration:none;color:var(--text);
  display:block;box-shadow:var(--shadow-card);
  transition:transform .15s,box-shadow .15s,border-color .15s}
a.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-panel);
  border-color:var(--primary)}
.tool-card h3{color:var(--text)}
.tool-card p{font-size:14px;color:var(--muted);margin:0}
.tool-card .icon-chip{display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  margin-bottom:14px;font-size:22px}
.cat-card{background:var(--ink);color:#fff;border-radius:var(--radius-lg);
  padding:24px;text-decoration:none;display:block;
  transition:transform .15s}
a.cat-card:hover{transform:translateY(-4px)}
.cat-card h3{color:#fff}
.cat-card p{color:#B9C6DA;font-size:14px;margin:0}
.cat-card .count{display:inline-block;margin-top:12px;font-size:12px;font-weight:700;
  background:var(--primary-soft);color:var(--primary-text);border-radius:999px;
  padding:4px 12px}
.no-results{display:none;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:24px;text-align:center;color:var(--muted)}

/* Category filter chips (front-page "All calculators"). */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.chip{display:inline-flex;align-items:center;min-height:44px;padding:10px 18px;
  border-radius:999px;border:1px solid var(--border);background:var(--surface);
  color:var(--text);font-size:14px;font-weight:600;font-family:var(--font-body);
  cursor:pointer;transition:background .15s,border-color .15s,color .15s}
.chip:hover{border-color:var(--primary)}
.chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}

/* Replaces ad-hoc inline margins in index.php / 404.php. */
.gap-top{margin-top:24px}
.gap-top-sm{margin-top:16px}

/* trust block */
.trust-grid{display:grid;gap:16px;grid-template-columns:1fr;margin-top:20px}
@media(min-width:640px){.trust-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.trust-grid{grid-template-columns:repeat(4,1fr)}}
.trust-item{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:24px}
.trust-item h3{font-size:16px;margin-bottom:6px}
.trust-item p{font-size:14px;color:var(--muted);margin:0}

/* ── 7. TOOL PAGE ─────────────────────────────────────────────────── */
.crumbs{font-size:13px;color:var(--muted);padding:20px 0 0}
.crumbs a{color:var(--primary-text);text-decoration:none}
.title-block{padding:16px 0 8px;max-width:760px}
.title-block p.lede{color:var(--muted);font-size:18px;margin:0}
.title-block .trust-chips{justify-content:flex-start;margin-top:16px}
.title-block .trust-chips span{background:var(--primary-soft);color:var(--primary-text)}

.tool-panel{background:var(--surface);border:1px solid var(--border);
  border-radius:20px;padding:24px;margin:24px 0;box-shadow:var(--shadow-panel)}
@media(min-width:768px){.tool-panel{padding:36px}}
/* The toolkit's own .tk-* CSS lays out form/results inside #tool-mount. */

.layout-sidebar{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:1024px){
  .layout-sidebar{grid-template-columns:minmax(0,1fr) 300px;align-items:start}
  /* FIX-LIST §2: sticky right sidebar, top offset 80px, desktop only */
  .sidebar{position:sticky;top:80px}
}
.sidebar .widget{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:20px;margin-bottom:20px}
.sidebar .widget h2,.sidebar .widget h3{font-size:15px;margin:0 0 12px;
  text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.sidebar .widget ul{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.sidebar .widget ul a{font-size:14px;text-decoration:none;color:var(--text);
  display:flex;align-items:center;min-height:44px;padding:8px 0}
.sidebar .widget ul a:hover{color:var(--primary-text)}
.sidebar .widget-ad{padding:0;border:none;background:transparent;text-align:center}
/* On <1024px the sidebar stacks below the content in DOM order; the ad
 * widget then renders once after the article (ad-slot-map §3). */

.content{max-width:760px;padding:16px 0 40px}
.content p{margin:0 0 16px}
.content ol.steps{margin:0 0 16px 20px;padding:0;display:grid;gap:10px}
.formula{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-md);padding:20px;font-family:var(--font-mono);
  font-size:14px;overflow-x:auto;margin-bottom:16px}
details.faq{border:1px solid var(--border);border-radius:var(--radius-md);
  padding:16px 18px;margin-bottom:10px;background:var(--surface)}
details.faq summary{font-weight:600;cursor:pointer;font-size:15px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  min-height:44px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:'+';font-size:20px;color:var(--primary-text);
  flex:none}
details.faq[open] summary::after{content:'−'}
details.faq .faq-a{margin:10px 0 0;color:var(--muted);font-size:15px}

.related-grid{display:grid;gap:14px;grid-template-columns:1fr;margin-top:8px}
@media(min-width:640px){.related-grid{grid-template-columns:repeat(3,1fr)}}

.share-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.share-row a{display:inline-block;text-decoration:none;font-size:14px;font-weight:600;
  padding:10px 18px;min-height:44px;border-radius:999px;background:var(--surface);
  color:var(--text);border:1px solid var(--border)}
.share-row a:hover{border-color:var(--primary)}

/* category description area (~300 words of editorial copy) */
.cat-desc{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:24px;margin:0 0 8px;max-width:76ch}
.cat-desc p{margin:0 0 14px;color:var(--text)}
.cat-desc p:last-child{margin-bottom:0}

/* ── 8. FOOTER ─────────────────────────────────────────────────────── */
footer.site{background:var(--ink-deep);color:#93A3BC;padding:48px 0 28px;
  margin-top:48px;font-size:14px}
footer.site a{color:#B9C6DA;text-decoration:none}
footer.site a:hover{color:#fff}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr;margin-bottom:32px}
@media(min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.foot-brand{color:#EAF1FA;font-family:var(--font-display);font-weight:700;
  font-size:18px;margin-bottom:10px;display:flex;align-items:center;gap:10px}
footer.site h3{color:#EAF1FA;font-size:13px;text-transform:uppercase;
  letter-spacing:.08em;margin:0 0 14px}
footer.site ul{list-style:none;margin:0;padding:0;display:grid;gap:2px}
footer.site ul a{display:flex;align-items:center;min-height:44px;padding:8px 0}
.fine{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;
  flex-wrap:wrap;gap:12px;justify-content:space-between}

/* ── 9. FOOTER STICKY AD BAR (FIX-LIST §3 · ad-slot-map §1.7 + §3 rules) ── */
.nf-stickybar{position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:#fff;border-top:1px solid var(--border);
  box-shadow:0 -4px 20px rgba(11,31,58,.12);
  max-height:100px;overflow:hidden;text-align:center}
.nf-stickybar[hidden]{display:none!important}
.nf-stickybar.nf-bar-hidden{display:none!important}
.nf-sticky-inner{max-width:1100px;margin:0 auto;padding:6px 56px 6px 12px;
  min-height:50px;display:flex;align-items:center;justify-content:center}
.nf-sticky-close{position:absolute;top:4px;right:4px;width:44px;height:44px;
  border:1px solid var(--border);background:#fff;border-radius:8px;
  font-size:18px;line-height:1;color:var(--muted);cursor:pointer}
.nf-sticky-close:hover{background:#F3F4F6;color:var(--text)}
/* reserve room so the bar never covers page content */
body.has-stickybar{padding-bottom:104px}

/* ── 10. MISC ──────────────────────────────────────────────────────── */
.search-form{display:flex;gap:10px;max-width:480px}
.search-form input{flex:1;min-width:0;min-height:48px;border:1px solid var(--input-border);
  border-radius:10px;padding:0 14px;font-size:16px;font-family:var(--font-body)}
.post-list{display:grid;gap:16px}
.post-list article{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:24px}
.post-list h2{margin:0 0 8px;font-size:22px}
.post-list h2 a{color:var(--text);text-decoration:none}
.post-list h2 a:hover{color:var(--primary-text)}
.meta{font-size:13px;color:var(--muted)}

@media print{
  header.site,footer.site,.sidebar,.nf-stickybar,.nf-slot,
  .trust-chips,.share-row,.hero-search{display:none!important}
  body{background:#fff}
  .hero{background:#fff;color:#000}
  .hero h1{color:#000}
}

/* ── 1.1.6: guide post typography (single.php) ───────────────────────
 * Long-form guides use h2/h3, lists and data tables. Tables scroll
 * horizontally on narrow screens instead of breaking the layout. */
.content h2{margin:32px 0 12px}
.content h3{margin:24px 0 10px}
.content ul{margin:0 0 16px 20px;padding:0;display:grid;gap:8px}
.content ol{margin:0 0 16px 20px;padding:0;display:grid;gap:8px}
.content table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:15px;display:block;overflow-x:auto}
.content th,.content td{padding:10px 12px;border:1px solid var(--border,#e3e9f2);text-align:left;vertical-align:top;white-space:nowrap}
.content thead th{background:#eef4fb;color:var(--ink,#0B1F3A);font-weight:700}
.content tbody tr:nth-child(even){background:#f8fafc}
.content .meta{margin:0 0 4px}