/* ─── FFC Help Centre — Main Stylesheet ─── */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --white:     #ffffff;
  --gray-50:   #f5f5f7;
  --gray-100:  #e8e8ed;
  --gray-200:  #d2d2d7;
  --gray-400:  #86868b;
  --gray-600:  #515154;
  --gray-800:  #1d1d1f;
  --navy:      #0a2540;
  --blue:      #0066cc;
  --blue-pale: #e8f0fb;
  --gold:      #b5813e;
  --green:     #1a8a42;
  --green-pale:#e6f4ec;
  --radius:    14px;
  --radius-sm: 10px;
  --max-body:  980px;
  --max-article: 720px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, 'Helvetica Neue', sans-serif;
  background: var(--white);
  color: var(--gray-800);
  -webkit-font-smoothing: antialiased;
  font-size: 17px;
  line-height: 1.6;
}

/* ── NAV ── */
.nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--gray-100);
  height: 52px;
  display: flex; align-items: center;
  padding: 0 44px; gap: 0;
}

.nav-logo {
  display: flex; align-items: center; gap: 8px;
  text-decoration: none; color: var(--gray-800);
  font-size: 15px; font-weight: 500; letter-spacing: -0.02em;
  flex-shrink: 0; margin-right: auto;
}

.nav-logo-icon {
  width: 26px; height: 26px; border-radius: 6px;
  background: var(--navy);
  display: flex; align-items: center; justify-content: center;
}
.nav-logo-icon svg { width: 14px; height: 14px; color: white; }

.nav-links {
  display: flex; gap: 32px; list-style: none;
  position: absolute; left: 50%; transform: translateX(-50%);
}
.nav-links a {
  font-size: 13px; color: var(--gray-600);
  text-decoration: none; letter-spacing: -0.01em;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--gray-800); }

.nav-cta {
  font-size: 13px; font-weight: 400;
  background: var(--gray-800); color: white;
  padding: 7px 16px; border-radius: 980px;
  text-decoration: none; letter-spacing: -0.01em;
  transition: background 0.15s; flex-shrink: 0;
}
.nav-cta:hover { background: #2d2d2f; }

/* ── BUTTONS ── */
.btn {
  font-family: -apple-system, 'Helvetica Neue', sans-serif;
  font-size: 14px; font-weight: 400;
  padding: 10px 20px; border-radius: 980px;
  border: none; cursor: pointer;
  text-decoration: none; display: inline-flex; align-items: center; gap: 6px;
  letter-spacing: -0.01em; white-space: nowrap;
  transition: all 0.15s;
}
.btn svg { width: 14px; height: 14px; }
.btn-solid { background: var(--gray-800); color: white; }
.btn-solid:hover { background: #2d2d2f; }
.btn-ghost { background: var(--white); color: var(--gray-800); border: 1px solid var(--gray-200); }
.btn-ghost:hover { border-color: var(--gray-400); }

/* ── CALLOUTS ── */
.callout {
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 24px 0;
  display: flex; gap: 12px;
}
.callout-info  { background: var(--blue-pale);  border: 1px solid rgba(0,102,204,0.1); }
.callout-tip   { background: var(--green-pale); border: 1px solid rgba(26,138,66,0.12); }
.callout-warn  { background: #fff8ec;           border: 1px solid rgba(181,129,62,0.15); }

.callout-icon { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; display: flex; }
.callout-icon svg { width: 16px; height: 16px; }
.callout-info .callout-icon  { color: var(--blue); }
.callout-tip  .callout-icon  { color: var(--green); }
.callout-warn .callout-icon  { color: var(--gold); }

.callout-title {
  font-size: 14px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 3px;
}
.callout-info  .callout-title { color: var(--blue); }
.callout-tip   .callout-title { color: var(--green); }
.callout-warn  .callout-title { color: var(--gold); }
.callout p { font-size: 14px; color: var(--gray-600); line-height: 1.55; }

/* ── FOOTER ── */
.site-footer {
  border-top: 1px solid var(--gray-100);
  padding: 24px 44px;
  display: flex; justify-content: space-between; align-items: center;
  background: var(--white);
}
.footer-left { font-size: 12px; color: var(--gray-400); letter-spacing: -0.005em; }
.footer-right { display: flex; gap: 20px; }
.footer-right a { font-size: 12px; color: var(--gray-400); text-decoration: none; transition: color 0.15s; }
.footer-right a:hover { color: var(--gray-600); }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.anim-1 { animation: fadeUp 0.45s cubic-bezier(.22,1,.36,1) both; }
.anim-2 { animation: fadeUp 0.45s 0.06s cubic-bezier(.22,1,.36,1) both; }
.anim-3 { animation: fadeUp 0.45s 0.12s cubic-bezier(.22,1,.36,1) both; }

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  .nav { padding: 0 20px; }
  .nav-links { display: none; }
  .site-footer { padding: 20px; flex-direction: column; gap: 10px; text-align: center; }
}