/* =========================================================
   TransformativeFin Hub — Global stylesheet
   Clean, minimal-colour system. One accent, one heading colour.
   ========================================================= */

:root{
  /* --- Colour: deliberately restrained --- */
  --color-primary:#0F00DE;      /* CTAs, links, active states — the ONE accent */
  --color-secondary:#20208D;    /* hover/pressed state of primary only */
  --color-ink:#12131A;          /* ALL headings, h1–h6 — single colour, no exceptions */
  --color-body:#3D404C;         /* body copy */
  --color-muted:#767A88;        /* captions, meta, footnotes */
  --color-line:#E6E8F1;         /* hairlines, borders */
  --color-bg:#FFFFFF;
  --color-bg-alt:#F6F7FB;       /* section alternation, no gradients */

  --font-base:'Poppins',-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;

  --container-width:1160px;
  --radius:8px;
  --space-1:0.5rem;
  --space-2:1rem;
  --space-3:1.5rem;
  --space-4:2.5rem;
  --space-5:4rem;
  --space-6:6rem;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:1rem;
  line-height:1.65;
  color:var(--color-body);
  background:var(--color-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;height:auto;}
svg{display:block;}

a{color:var(--color-primary);text-decoration:none;}
a:hover{color:var(--color-secondary);text-decoration:underline;}

/* --- Headings: one colour, everywhere, no per-section overrides --- */
h1,h2,h3,h4,h5,h6{
  color:var(--color-ink);
  font-family:var(--font-base);
  font-weight:600;
  line-height:1.2;
  margin:0 0 0.6em;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2.1rem,1.6rem + 2.2vw,3.15rem);font-weight:700;}
h2{font-size:clamp(1.65rem,1.4rem + 1.1vw,2.25rem);}
h3{font-size:clamp(1.3rem,1.15rem + 0.6vw,1.6rem);}
h4{font-size:1.15rem;}

p{margin:0 0 1.1em;max-width:66ch;}
p.lede{font-size:1.15rem;color:var(--color-body);}

ul,ol{margin:0 0 1.1em;padding-left:1.25em;color:var(--color-body);}
li{margin-bottom:0.35em;}

.container{
  width:100%;
  max-width:var(--container-width);
  margin-inline:auto;
  padding-inline:clamp(1.25rem,4vw,2rem);
}

.visually-hidden{
  position:absolute;width:1px;height:1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;
}

:focus-visible{outline:3px solid var(--color-secondary);outline-offset:2px;}

section{padding-block:clamp(3rem,5vw,5.5rem);}
.section-alt{background:var(--color-bg-alt);}

.eyebrow{
  font-size:0.85rem;
  font-weight:600;
  color:var(--color-primary);
  margin-bottom:0.5em;
}

.breadcrumbs{font-size:0.85rem;color:var(--color-muted);margin-bottom:var(--space-3);}
.breadcrumbs a{color:var(--color-muted);}
.breadcrumbs a:hover{color:var(--color-primary);}
.breadcrumbs [aria-current]{color:var(--color-ink);font-weight:600;}

/* --- Buttons --- */
.btn{
  display:inline-flex;align-items:center;gap:0.5em;
  padding:0.85em 1.6em;border-radius:var(--radius);
  font-weight:600;font-size:0.95rem;border:1.5px solid transparent;
  cursor:pointer;text-decoration:none;transition:background 0.15s ease,border-color 0.15s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--color-primary);color:#fff;}
.btn-primary:hover{background:var(--color-secondary);}
.btn-ghost{background:transparent;border-color:var(--color-line);color:var(--color-ink);}
.btn-ghost:hover{border-color:var(--color-primary);color:var(--color-primary);}

/* --- Header / nav --- */
.site-header{
  border-bottom:1px solid var(--color-line);
  position:sticky;top:0;background:rgba(255,255,255,0.96);
  backdrop-filter:saturate(140%) blur(6px);
  z-index:50;
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  padding-block:0.9rem;gap:var(--space-3);
}
.brand{display:inline-flex;align-items:center;text-decoration:none;line-height:0;}
.brand:hover{text-decoration:none;}
.brand img{height:34px;width:auto;display:block;}
.brand .brand-fallback{
  font-weight:700;font-size:1.05rem;line-height:1.2;
  color:var(--color-ink);font-family:var(--font-base);
  letter-spacing:0.01em;
}
.site-footer .brand{background:#fff;padding:0.55rem 1rem;border-radius:8px;margin-bottom:0.25rem;}
.site-footer .brand img{height:28px;}

nav.primary-nav{display:flex;align-items:center;gap:var(--space-4);}
nav.primary-nav ul{display:flex;gap:var(--space-3);margin:0;padding:0;list-style:none;}
nav.primary-nav a{color:var(--color-body);font-size:0.92rem;font-weight:500;}
nav.primary-nav a:hover{color:var(--color-primary);text-decoration:none;}
nav.primary-nav li{position:relative;}

.has-submenu > a::after{content:"";display:inline-block;width:0.4em;height:0.4em;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-left:0.4em;translate:0 -2px;}
.submenu{
  display:none;position:absolute;top:100%;left:0;min-width:280px;
  background:#fff;border:1px solid var(--color-line);border-radius:var(--radius);
  padding:0.5rem;margin-top:0.6rem;box-shadow:0 12px 32px -12px rgba(15,0,222,0.18);
}
.has-submenu:hover .submenu,.has-submenu:focus-within .submenu{display:block;}
.submenu a{display:block;padding:0.55em 0.75em;border-radius:6px;color:var(--color-body);}
.submenu a:hover{background:var(--color-bg-alt);color:var(--color-primary);text-decoration:none;}

.nav-toggle{display:none;}

@media (max-width:900px){
  nav.primary-nav ul{display:none;}
  .nav-toggle{display:inline-flex;background:none;border:1px solid var(--color-line);border-radius:6px;padding:0.5em 0.7em;}
}

/* --- Footer --- */
.site-footer{
  background:#050505; /* near-true black, deliberately darker than ink */
  padding-block:var(--space-5);
}
.site-footer p{color:#9A9DA8;}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:var(--space-4);}
.footer-grid h4{font-size:0.82rem;color:#fff;margin-bottom:0.9em;letter-spacing:0.02em;text-transform:uppercase;font-weight:600;}
.footer-grid ul{list-style:none;padding:0;margin:0;}
.footer-grid li{margin-bottom:0.6em;}
.footer-grid a{color:#B7B9C4;font-size:0.9rem;}
.footer-grid a:hover{color:#fff;}
.footer-bottom{
  margin-top:var(--space-4);padding-top:var(--space-3);
  border-top:1px solid rgba(255,255,255,0.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;
  font-size:0.82rem;color:#75778A;
}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;}}

/* --- Cards --- */
.card-grid{display:grid;gap:var(--space-3);}
.card{
  border:1px solid var(--color-line);border-radius:var(--radius);
  padding:var(--space-3);background:#fff;
}
.card h3{margin-bottom:0.4em;}
.card .tag{font-size:0.78rem;font-weight:600;color:var(--color-primary);margin-bottom:0.5em;display:block;}
.card p{font-size:0.92rem;margin-bottom:0.75em;}
.card a.card-link{font-size:0.88rem;font-weight:600;}