/* ═══════════════════════════════════════
   BNS Data — Refined Editorial Theme
   Inspired by: McKinsey, BCG, Oliver Wyman
   Palette: Cream white · Deep navy · Gold
═══════════════════════════════════════ */
/* fonts loaded via HTML link tags */

:root {
  --cream:       #FAF9F6;
  --cream-mid:   #F2F0EB;
  --cream-dark:  #E8E5DC;
  --navy:        #0B2241;
  --navy-mid:    #1A3A5C;
  --navy-light:  #2C547A;
  --gold:        #B8944A;
  --gold-light:  #D4AE6A;
  --black:       #111111;
  --text:        #1C1C1C;
  --text-mid:    #4A4A4A;
  --text-muted:  #737373;
  --text-light:  #A0A0A0;
  --border:      #DDD9CF;
  --border-light:#EDEAE3;
  --white:       #FFFFFF;
  --radius:      4px;
  --radius-md:   8px;
  --max-width:   1160px;
  --section-pad: 110px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: 'DM Sans', -apple-system, 'Helvetica Neue', Arial, sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAVIGATION ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 52px; height: 72px;
  background: rgba(250,249,246,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: height 0.3s;
}
nav.scrolled { height: 62px; }

.nav-logo {
  font-family: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  font-weight: 700; font-size: 20px; letter-spacing: -0.01em;
  color: var(--navy); text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.nav-logo-rule {
  width: 1px; height: 18px; background: var(--gold);
}
.nav-logo-sub {
  font-family: 'DM Sans', -apple-system, 'Helvetica Neue', Arial, sans-serif;
  font-size: 11px; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted);
}

.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a {
  color: var(--text-mid); text-decoration: none; font-size: 13.5px;
  font-weight: 500; padding: 6px 14px; border-radius: var(--radius);
  letter-spacing: 0.01em; transition: color 0.2s; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: 2px; left: 14px; right: 14px;
  height: 1px; background: var(--navy); transform: scaleX(0);
  transform-origin: left; transition: transform 0.25s ease;
}
.nav-links a:hover { color: var(--navy); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: var(--navy); }
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.nav-cta {
  background: var(--navy); color: var(--white) !important;
  padding: 8px 20px; border-radius: var(--radius); margin-left: 8px;
  letter-spacing: 0.02em; font-size: 13px;
}
.nav-links a.nav-cta::after { display: none; }
.nav-links a.nav-cta:hover { background: var(--navy-mid); }

/* ── TYPOGRAPHY ── */
h1, h2, h3 { font-family: 'Playfair Display', 'Georgia', 'Times New Roman', serif; color: var(--black); letter-spacing: -0.02em; line-height: 1.1; }
h1 { font-size: clamp(42px, 5.5vw, 72px); font-weight: 700; line-height: 1.05; }
h2 { font-size: clamp(32px, 4vw, 52px); font-weight: 700; line-height: 1.1; }
h3 { font-size: 22px; font-weight: 600; line-height: 1.3; }
h4 { font-family: 'DM Sans', -apple-system, 'Helvetica Neue', Arial, sans-serif; font-size: 13px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); }

em.hi { font-style: italic; color: var(--navy); }
em.gold { font-style: italic; color: var(--gold); }
em.plain { font-style: italic; color: inherit; }

.lead {
  font-size: 18px; color: var(--text-mid); line-height: 1.8;
  font-weight: 300; max-width: 580px;
}

/* ── SECTION LABEL ── */
.label {
  display: flex; align-items: center; gap: 14px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 22px;
}
.label::before { content: ''; width: 32px; height: 1px; background: var(--gold); flex-shrink: 0; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 28px; border-radius: var(--radius); font-size: 13.5px;
  font-weight: 500; text-decoration: none; border: none; cursor: pointer;
  font-family: 'DM Sans', -apple-system, 'Helvetica Neue', Arial, sans-serif; letter-spacing: 0.02em;
  transition: all 0.22s; line-height: 1;
}
.btn-primary {
  background: var(--navy); color: var(--white);
}
.btn-primary:hover { background: var(--navy-mid); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(11,34,65,0.18); }
.btn-outline {
  background: transparent; border: 1px solid var(--navy);
  color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: var(--white); }
.btn-ghost {
  background: transparent; color: var(--text-mid);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--navy); color: var(--navy); }
.btn-sm { padding: 10px 22px; font-size: 13px; }
.btn svg { transition: transform 0.2s; }
.btn:hover svg { transform: translateX(3px); }

/* ── RULE DIVIDER ── */
.rule { height: 1px; background: var(--border); }
.rule-gold { height: 1px; background: var(--gold); width: 48px; }

/* ── SECTIONS ── */
.section { padding: var(--section-pad) 52px; }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-alt { background: var(--cream-mid); }
.section-navy { background: var(--navy); }
.section-navy h1, .section-navy h2, .section-navy h3 { color: var(--white); }
.section-navy .lead, .section-navy p { color: rgba(255,255,255,0.72); }
.section-navy .label { color: var(--gold-light); }
.section-navy .label::before { background: var(--gold-light); }

/* ── PAGE HERO ── */
.page-hero {
  padding: 156px 52px 90px;
  background: var(--cream);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.page-hero::after {
  content: '';
  position: absolute; left: 52px; bottom: 0;
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--border), transparent);
}
.page-hero-inner { max-width: var(--max-width); margin: 0 auto; }
.page-hero h1 { max-width: 700px; margin-bottom: 22px; }
.page-hero .lead { margin-bottom: 40px; }

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.card:hover {
  border-color: var(--navy);
  box-shadow: 0 4px 32px rgba(11,34,65,0.06);
}
.card-flat {
  background: var(--white);
  border-left: 3px solid var(--gold);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ── TAGS ── */
.tag {
  display: inline-block;
  background: var(--cream-mid); border: 1px solid var(--border);
  border-radius: 2px; padding: 3px 10px;
  font-size: 11px; color: var(--text-muted); font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.tag-navy {
  background: rgba(11,34,65,0.07); border-color: rgba(11,34,65,0.14);
  color: var(--navy);
}

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.75s ease, transform 0.75s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* ── CTA BAND ── */
.cta-band {
  background: var(--navy);
  padding: 96px 52px;
  position: relative; overflow: hidden;
}
.cta-band::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, transparent 60%);
}
.cta-band-inner { max-width: 700px; }
.cta-band h2 { color: var(--white); margin-bottom: 16px; }
.cta-band p { color: rgba(255,255,255,0.65); font-size: 18px; font-weight: 300; margin-bottom: 40px; line-height: 1.75; }
.cta-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-white { background: var(--white); color: var(--navy); }
.btn-white:hover { background: var(--cream); }
.btn-outline-white { background: transparent; border: 1px solid rgba(255,255,255,0.3); color: var(--white); }
.btn-outline-white:hover { border-color: var(--white); background: rgba(255,255,255,0.07); }

/* ── FOOTER ── */
footer {
  background: var(--black);
  color: rgba(255,255,255,0.55);
  padding: 72px 52px 40px;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; }
.footer-top {
  display: grid; grid-template-columns: 2.2fr 1fr 1fr 1fr;
  gap: 56px; padding-bottom: 52px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 32px;
}
.footer-logo {
  font-family: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  font-weight: 700; font-size: 18px; color: var(--white);
  text-decoration: none; display: block; margin-bottom: 14px;
}
.footer-desc { font-size: 13.5px; line-height: 1.75; max-width: 270px; color: rgba(255,255,255,0.45); }
.footer-col-title {
  font-size: 10px; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: rgba(255,255,255,0.35);
  margin-bottom: 18px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.footer-links a { color: rgba(255,255,255,0.5); font-size: 13.5px; text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12px; color: rgba(255,255,255,0.3);
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: rgba(255,255,255,0.3); text-decoration: none; }
.footer-bottom-links a:hover { color: rgba(255,255,255,0.6); }

/* ── RESPONSIVE ── */
@media(max-width:1024px) {
  nav { padding: 0 28px; }
  .section { padding: 80px 28px; }
  .page-hero { padding: 130px 28px 72px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .cta-band { padding: 72px 28px; }
  :root { --section-pad: 80px; }
}
@media(max-width:768px) {
  .nav-links { display: none; }
  h1 { font-size: 38px; }
  h2 { font-size: 30px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 14px; text-align: center; }
  .cta-band { padding: 60px 24px; }
}