/* ==========================================================================
   AB&T - ab-t.org
   US Mid-Market Management Consulting
   --------------------------------------------------------------------------
   Palette: Charcoal + Oxblood + Bone
   - Enterprise-confident, mid-market, distinct from sibling sites
   ========================================================================== */

:root {
  --charcoal:      #15181C;
  --charcoal-deep: #0B0E11;
  --charcoal-soft: #2A2F36;
  --oxblood:       #7A2E2E;
  --oxblood-deep:  #5F2424;
  --oxblood-soft:  #B05050;
  --bone:          #F4EFE7;
  --bone-warm:     #EBE2D2;
  --ink:           #15181C;
  --ink-soft:      #5A6470;
  --rule:          #D7CFC0;
  --white:         #FFFFFF;

  --radius: 4px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 2px rgba(11,14,17,0.06), 0 2px 6px rgba(11,14,17,0.04);
  --shadow-md: 0 4px 14px rgba(11,14,17,0.08), 0 12px 26px rgba(11,14,17,0.06);
  --shadow-lg: 0 20px 44px rgba(11,14,17,0.14);

  --font-serif: 'Fraunces', 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --container: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--oxblood); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--oxblood-deep); }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--charcoal);
  font-weight: 600;
  line-height: 1.18;
  margin: 0 0 .6em;
  letter-spacing: -0.012em;
}
h1 { font-size: clamp(2.4rem, 4.8vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.85rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.28rem; }
h4 { font-size: 1.05rem; }
p  { margin: 0 0 1.05em; color: var(--ink-soft); }

.container {
  width: 100%;
  max-width: var(--container);
  padding: 0 24px;
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--oxblood);
  margin-bottom: 1.1rem;
}
.eyebrow.on-dark { color: var(--oxblood-soft); }

.section-title {
  text-align: center;
  margin-bottom: 3.2rem;
}
.section-title h2 { margin-bottom: .6rem; }
.section-title p {
  max-width: 740px;
  margin: 0 auto;
  font-size: 1.05rem;
  color: var(--ink-soft);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: all .25s ease;
  cursor: pointer;
  text-align: center;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--oxblood);
  color: var(--white);
  border-color: var(--oxblood);
}
.btn-primary:hover { background: var(--oxblood-deep); border-color: var(--oxblood-deep); color: var(--white); }
.btn-outline {
  background: transparent;
  color: var(--charcoal);
  border-color: var(--charcoal);
}
.btn-outline:hover { background: var(--charcoal); color: var(--white); }
.btn-outline.on-dark { color: var(--white); border-color: rgba(244,239,231,0.4); }
.btn-outline.on-dark:hover { background: var(--bone); color: var(--charcoal); border-color: var(--bone); }
.btn-large { padding: 16px 34px; font-size: 1rem; }

/* Topbar */
.topbar {
  background: var(--charcoal-deep);
  color: var(--bone);
  font-size: 0.86rem;
  border-bottom: 1px solid rgba(244,239,231,0.06);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  gap: 24px;
}
.topbar-tagline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.04em;
}
.topbar-tagline svg { width: 16px; height: 16px; color: var(--oxblood-soft); }
.topbar-meta {
  display: inline-flex;
  align-items: center;
  gap: 20px;
}
.topbar-meta span,
.topbar-meta a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--bone);
}
.topbar-meta a:hover { color: var(--oxblood-soft); }
.topbar-meta svg { width: 14px; height: 14px; }

/* Nav */
.nav {
  background: var(--white);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--charcoal);
}
.brand-mark {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--charcoal);
  color: var(--oxblood-soft);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  border-radius: var(--radius);
  letter-spacing: -0.02em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--charcoal);
  letter-spacing: -0.01em;
}
.brand-sub {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  color: var(--charcoal);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 2px;
  position: relative;
}
.nav-menu a.active,
.nav-menu a:hover { color: var(--oxblood); }
.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--oxblood);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.nav-phone {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--charcoal);
  font-weight: 500;
  font-size: 0.92rem;
}
.nav-phone svg { width: 16px; height: 16px; }
.nav-phone:hover { color: var(--oxblood); }
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--charcoal);
}
.hamburger svg { width: 22px; height: 22px; }

/* Mobile drawer */
.scrim {
  position: fixed;
  inset: 0;
  background: rgba(11,14,17,0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
  z-index: 90;
}
.scrim.open { opacity: 1; pointer-events: auto; }
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: min(320px, 86vw);
  background: var(--white);
  padding: 32px 28px;
  transform: translateX(110%);
  transition: transform .3s ease;
  z-index: 100;
  display: flex;
  flex-direction: column;
}
.drawer.open { transform: translateX(0); }
.drawer-close {
  align-self: flex-end;
  color: var(--charcoal);
  margin-bottom: 14px;
}
.drawer-close svg { width: 22px; height: 22px; }
.drawer ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.drawer ul a {
  display: block;
  padding: 12px 6px;
  color: var(--charcoal);
  font-weight: 500;
  font-size: 1rem;
  border-bottom: 1px solid var(--rule);
}
.drawer-cta { width: 100%; margin-bottom: 28px; }
.drawer-meta {
  margin-top: auto;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

/* Hero */
.hero {
  position: relative;
  background: linear-gradient(160deg, var(--charcoal) 0%, var(--charcoal-soft) 100%);
  color: var(--bone);
  padding: 110px 0 130px;
  overflow: hidden;
}
.hero-glyph {
  position: absolute;
  right: -40px;
  top: 50%;
  transform: translateY(-50%);
  width: 540px;
  height: 540px;
  opacity: 0.16;
  pointer-events: none;
}
.hero-glyph svg { width: 100%; height: 100%; }
.hero-inner { position: relative; z-index: 2; max-width: 820px; }
.hero h1 {
  color: var(--bone);
  margin-bottom: 1.2rem;
}
.hero h1 .accent { color: var(--oxblood-soft); }
.hero-lead {
  color: rgba(244,239,231,0.86);
  font-size: 1.16rem;
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 660px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 2.4rem;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 0.9rem;
  color: rgba(244,239,231,0.78);
}
.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.hero-meta svg { width: 16px; height: 16px; color: var(--oxblood-soft); }

/* Sections */
.section-light { background: var(--white); padding: 96px 0; }
.section-cream { background: var(--bone); padding: 96px 0; }
.section-cream-warm { background: var(--bone-warm); padding: 96px 0; }
.section-dark { background: var(--charcoal); color: var(--bone); padding: 96px 0; }
.section-dark h2,
.section-dark h3 { color: var(--bone); }
.section-dark p { color: rgba(244,239,231,0.8); }

/* Trust strip */
.trust { background: var(--bone); padding: 56px 0; }
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  text-align: center;
}
.trust-item .label {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--charcoal);
  font-weight: 600;
  margin-bottom: 4px;
}
.trust-item .desc {
  display: block;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all .25s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--oxblood-soft);
}
.service-num {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--oxblood);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.service-card h3 { margin-bottom: 12px; }
.service-card p { font-size: 0.96rem; margin-bottom: 16px; }
.service-card .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.service-card .chips li {
  font-size: 0.78rem;
  background: var(--bone);
  color: var(--charcoal-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

/* Reasons */
.reasons-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
}
.reason {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule);
}
.reason-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--charcoal);
  color: var(--oxblood-soft);
  border-radius: 50%;
  margin-bottom: 16px;
}
.reason-icon svg { width: 22px; height: 22px; }
.reason h3 { margin-bottom: 8px; font-size: 1.18rem; }
.reason p { font-size: 0.94rem; margin: 0; }

/* Engagement formats */
.formats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.format {
  background: var(--white);
  padding: 28px;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--oxblood);
  box-shadow: var(--shadow-sm);
}
.format .duration {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 0.86rem;
  color: var(--oxblood);
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.format h3 { margin-bottom: 10px; font-size: 1.2rem; }
.format p { margin: 0; font-size: 0.94rem; }

/* Process */
.process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
  position: relative;
}
.process-step {
  position: relative;
  padding: 28px 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--rule);
}
.process-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--oxblood);
  line-height: 1;
  margin-bottom: 14px;
}
.process-step h3 { margin-bottom: 8px; }
.process-step p { font-size: 0.93rem; margin: 0; }

/* Industries */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}
.industry {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}
.industry svg { width: 22px; height: 22px; color: var(--oxblood); flex-shrink: 0; }
.industry-name {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--charcoal);
}

/* FAQ */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.faq {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
}
.faq summary {
  padding: 22px 26px;
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--charcoal);
  cursor: pointer;
  list-style: none;
  position: relative;
  font-family: var(--font-serif);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 26px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.6rem;
  color: var(--oxblood);
  transition: transform .2s ease;
  font-weight: 400;
}
.faq[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-body {
  padding: 0 26px 22px;
  color: var(--ink-soft);
  font-size: 0.96rem;
}
.faq-body p { margin: 0; }

/* CTA banner */
.cta-banner {
  background: linear-gradient(160deg, var(--charcoal-deep) 0%, var(--charcoal) 100%);
  color: var(--bone);
  padding: 96px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner h2 {
  color: var(--bone);
  max-width: 760px;
  margin: 0 auto 1rem;
}
.cta-banner p {
  color: rgba(244,239,231,0.8);
  max-width: 640px;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
}
.cta-banner .hero-actions { justify-content: center; margin: 0; }

/* Form / contact */
.contact-wrap {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 1.2rem; }
.contact-info p { font-size: 1.02rem; margin-bottom: 1.4rem; }
.contact-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.contact-row:last-child { border-bottom: 0; }
.contact-row svg { width: 20px; height: 20px; color: var(--oxblood); flex-shrink: 0; margin-top: 2px; }
.contact-row strong {
  display: block;
  color: var(--charcoal);
  font-weight: 600;
  margin-bottom: 2px;
}
.contact-row span { color: var(--ink-soft); font-size: 0.95rem; }
.form-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--rule);
  box-shadow: var(--shadow-sm);
}
.form-card iframe {
  width: 100%;
  border: 0;
  min-height: 580px;
  display: block;
}
.form-placeholder {
  padding: 60px 28px;
  text-align: center;
  background: var(--bone);
  border-radius: var(--radius);
  color: var(--ink-soft);
  font-size: 0.94rem;
  border: 1px dashed var(--rule);
}

/* About hero / content */
.page-hero {
  background: linear-gradient(160deg, var(--charcoal) 0%, var(--charcoal-soft) 100%);
  color: var(--bone);
  padding: 100px 0 90px;
  text-align: center;
}
.page-hero h1 { color: var(--bone); margin-bottom: 1rem; }
.page-hero p {
  color: rgba(244,239,231,0.85);
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.1rem;
}
.prose {
  max-width: 780px;
  margin: 0 auto;
  font-size: 1.04rem;
}
.prose h2 { margin-top: 2.4rem; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--ink-soft); }
.prose ul { color: var(--ink-soft); padding-left: 22px; margin-bottom: 1.4rem; }
.prose ul li { margin-bottom: 0.5rem; }

/* Footer */
.footer {
  background: var(--charcoal-deep);
  color: rgba(244,239,231,0.75);
  padding: 70px 0 30px;
}
.footer h4 {
  color: var(--bone);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-family: var(--font-sans);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer .brand .brand-name,
.footer .brand .brand-sub { color: var(--bone); }
.footer .brand .brand-mark { background: var(--oxblood); color: var(--white); }
.footer p { color: rgba(244,239,231,0.7); font-size: 0.94rem; margin: 14px 0; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { margin-bottom: 8px; }
.footer ul a { color: rgba(244,239,231,0.75); font-size: 0.92rem; }
.footer ul a:hover { color: var(--oxblood-soft); }
.footer-meta {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(244,239,231,0.7);
}
.footer-meta-row svg { width: 16px; height: 16px; color: var(--oxblood-soft); }
.footer-bottom {
  border-top: 1px solid rgba(244,239,231,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.84rem;
  color: rgba(244,239,231,0.55);
}

/* Responsive */
@media (max-width: 920px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .contact-wrap { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 780px) {
  .topbar-tagline { display: none; }
  .nav-menu { display: none; }
  .nav-phone { display: none; }
  .hamburger { display: inline-flex; }
  .nav-cta .btn { display: none; }
  .hero { padding: 80px 0 90px; }
  .hero-glyph { opacity: 0.08; }
  .section-light, .section-cream, .section-cream-warm, .section-dark { padding: 72px 0; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-meta { gap: 14px; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1; }
}