/* ===================================================================
   AxiomX Consulting & Learning — Design System
   Authoritative · Sharp · Directional. Sharp corners, defined edges,
   confident whitespace. Navy + cobalt. Serif headings, tracked sans UI.
   =================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --bg:            #FFFFFF;
  --bg-faint:      #F9F9FB;
  --navy:          #1A1F5E;   /* headings, nav, footer */
  --cobalt:        #2563EB;   /* CTAs, hovers, accents */
  --cobalt-bright: #3B82F6;
  --ink:           #1C1C1E;   /* body text */
  --border:        #E2E4EA;   /* 1px rules only */
  --navy-on-dark:  #C7D0EE;   /* muted light text on navy */
  --navy-tile:     #232a73;   /* slightly lifted navy for inner panels */

  --maxw: 1200px;
  --pad: clamp(1.25rem, 4vw, 2.75rem);

  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --track-ui: 0.12em;        /* wide-tracked all-caps UI labels */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;             /* >=16px for mobile/SEO */
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;          /* guard against incidental horizontal scroll */
}
h1, h2, h3, h4 { overflow-wrap: break-word; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cobalt); text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--serif); color: var(--navy); letter-spacing: -0.01em; line-height: 1.15; font-weight: 700; margin: 0 0 .5em; }
p { margin: 0 0 1rem; }

/* ---------- Layout helpers ---------- */
.container { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }
.section { padding-block: clamp(3.25rem, 7vw, 6rem); }
.section--tight { padding-block: clamp(2.5rem, 5vw, 4rem); }
.rule { height: 1px; background: var(--border); border: 0; margin: 0; }

/* Short cobalt accent rule above headings — echoes the X strokes */
.accent-rule { width: 60px; height: 2px; background: var(--cobalt); border: 0; margin: 0 0 1.25rem; }

/* All-caps tracked category label */
.eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: var(--track-ui);
  font-weight: 600;
  font-size: .78rem;
  color: var(--cobalt);
  margin: 0 0 .65rem;
}
.eyebrow--navy { color: var(--navy); }

.lede { font-size: 1.15rem; color: #3a3a40; max-width: 60ch; }

/* Skip link for accessibility */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--navy); color: #fff; padding: .6rem 1rem;
  letter-spacing: var(--track-ui); text-transform: uppercase; font-size: .8rem;
}
.skip-link:focus { left: 0; }

/* ===================================================================
   TOP CONTACT BAR  (navy, pinned, always visible)
   =================================================================== */
.topbar {
  position: sticky; top: 0; z-index: 60;
  background: var(--navy); color: #fff;
}
.topbar .container {
  display: flex; gap: 1.5rem; align-items: center; justify-content: flex-end;
  min-height: 38px;
}
.topbar a {
  color: #fff; font-size: .76rem; letter-spacing: var(--track-ui);
  text-transform: uppercase; font-weight: 500;
  display: inline-flex; align-items: center; gap: .4rem;
}
.topbar a:hover { color: var(--cobalt-bright); }
.topbar svg { width: 14px; height: 14px; stroke: currentColor; }

/* ===================================================================
   STICKY HEADER  (white, 1px bottom border, logo left / nav right)
   =================================================================== */
.site-header {
  position: sticky; top: 38px; z-index: 55;
  background: #fff; border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 76px; gap: 1rem;
}
.brand { display: inline-flex; align-items: center; }
.brand img { height: 46px; width: auto; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2.25rem); }
.nav a {
  position: relative;
  color: var(--navy); font-weight: 500; font-size: .82rem;
  letter-spacing: var(--track-ui); text-transform: uppercase;
  padding: .35rem 0;
}
/* thin cobalt underline drawing in from left on hover/active */
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--cobalt); transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--cobalt); }

/* Mobile nav toggle */
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border);
  width: 44px; height: 44px; cursor: pointer; padding: 0; color: var(--navy);
}
.nav-toggle svg { width: 22px; height: 22px; margin: auto; stroke: currentColor; }

/* ===================================================================
   BUTTONS  (sharp corners, cobalt fill slides in from left on hover)
   =================================================================== */
.btn {
  --btn-fg: #fff;
  position: relative; display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--sans); font-weight: 600; font-size: .82rem;
  letter-spacing: var(--track-ui); text-transform: uppercase;
  padding: .95rem 1.9rem; border: 1px solid var(--cobalt); border-radius: 0;
  cursor: pointer; overflow: hidden; isolation: isolate;
  color: var(--btn-fg); background: var(--cobalt);
  transition: color .3s var(--ease);
  min-height: 48px;
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--navy); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.btn:hover::before, .btn:focus-visible::before { transform: scaleX(1); }
.btn svg { width: 16px; height: 16px; stroke: currentColor; }

/* Ghost variant: 1px cobalt border, fill slides in on hover */
.btn--ghost { background: transparent; color: var(--cobalt); }
.btn--ghost::before { background: var(--cobalt); }
.btn--ghost:hover, .btn--ghost:focus-visible { color: #fff; }

/* On navy backgrounds */
.btn--on-navy { border-color: #fff; background: transparent; color: #fff; }
.btn--on-navy::before { background: var(--cobalt); }
.btn--on-navy:hover { color: #fff; border-color: var(--cobalt); }

/* ===================================================================
   HERO
   =================================================================== */
.hero { background: var(--bg-faint); border-bottom: 1px solid var(--border); position: relative; overflow: hidden; }
.hero .container { padding-block: clamp(3.5rem, 9vw, 7rem); position: relative; z-index: 2; }
.hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4.1rem); line-height: 1.04; max-width: 16ch;
}
.hero h1 .accent { color: var(--cobalt); }
.hero .lede { margin-top: 1.25rem; font-size: clamp(1.05rem, 2vw, 1.3rem); }
.hero .btn { margin-top: 2rem; }

/* faint directional X motif in hero corner */
.hero__motif {
  position: absolute; left: 58%; top: 50%; transform: translate(-50%, -50%);
  width: min(52vw, 860px); opacity: .06; z-index: 1; pointer-events: none;
}

/* ===================================================================
   VALUE PILLARS  (navy strip, white text, cobalt icons)
   =================================================================== */
.pillars { background: var(--navy); color: #fff; }
.pillars .grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
}
.pillar {
  padding: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 3vw, 2.5rem);
  border-left: 1px solid rgba(255,255,255,.12);
}
.pillar:first-child { border-left: 0; }
.pillar__icon { width: 34px; height: 34px; stroke: var(--cobalt-bright); margin-bottom: 1rem; }
.pillar h3 { color: #fff; font-size: 1.5rem; margin-bottom: .2rem; }
.pillar p { color: var(--navy-on-dark); margin: 0; font-size: .98rem; }
.pillar .sub { color: var(--cobalt-bright); font-family: var(--serif); font-style: italic; font-size: 1.05rem; }

/* ===================================================================
   AUDIENCE CTA TILES
   =================================================================== */
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--border); }
.tile {
  padding: clamp(1.75rem, 3.5vw, 2.75rem);
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: flex-start;
  transition: background .3s var(--ease);
}
.tile:first-child { border-left: 0; }
.tile:hover { background: var(--bg-faint); }
.tile__icon { width: 38px; height: 38px; stroke: var(--cobalt); margin-bottom: 1rem; }
.tile h3 { font-size: 1.75rem; margin-bottom: .35rem; }
.tile p { color: #44454c; }
.tile .btn { margin-top: 1.25rem; }

/* ===================================================================
   SERVICE LIST ITEMS  (flat, no shadow, 1px rule separators)
   =================================================================== */
.svc-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--border); }
.svc-item {
  display: grid; grid-template-columns: 42px 1fr; gap: 1.25rem;
  padding: 1.4rem 0; border-bottom: 1px solid var(--border);
  align-items: start;
}
.svc-item__icon { width: 30px; height: 30px; stroke: var(--cobalt); stroke-width: 1.5; margin-top: .15rem; }
.svc-item h4 { font-family: var(--sans); font-weight: 700; color: var(--navy); font-size: 1.08rem; margin: 0 0 .15rem; letter-spacing: 0; }
.svc-item p { margin: 0; color: #4a4b52; font-size: .97rem; }

/* VCE outlined badge */
.badge {
  display: inline-block; border: 1px solid var(--cobalt); color: var(--cobalt);
  padding: .4rem .9rem; font-size: .76rem; letter-spacing: var(--track-ui);
  text-transform: uppercase; font-weight: 600; border-radius: 0; margin-bottom: 1.5rem;
}

/* Category heading: semantic h2 rendered as a wide-tracked all-caps label
   (echoes the "CONSULTING & LEARNING" subtext) instead of a serif duplicate */
.cat-heading {
  font-family: var(--sans); color: var(--cobalt);
  text-transform: uppercase; letter-spacing: var(--track-ui); font-weight: 600;
  font-size: clamp(1rem, 2vw, 1.2rem); margin: 0 0 1rem;
}
.cat-heading--navy { color: var(--navy); }

/* Italic serif pull-quote */
.pullquote {
  font-family: var(--serif); font-style: italic; color: var(--cobalt);
  font-size: clamp(1.4rem, 3vw, 2rem); line-height: 1.3; margin: 2rem 0 0; max-width: 24ch;
}
.pullquote--lg { font-size: clamp(1.8rem, 4vw, 2.8rem); }

/* ===================================================================
   TRACK SELECTOR  (two panels, single vertical divider)
   =================================================================== */
.tracks { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--border); }
.track {
  padding: clamp(1.75rem, 4vw, 3rem);
  border-left: 1px solid var(--border);
}
.track:first-child { border-left: 0; }
.track__icon { width: 46px; height: 46px; stroke: var(--cobalt); stroke-width: 1.4; margin-bottom: 1.1rem; }
.track h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
.track p { color: #44454c; }
.track .pullquote { font-size: 1.25rem; margin-top: 1rem; }

/* ===================================================================
   INDUSTRY TAGS  (sharp-cornered, 1px navy border, no fill)
   =================================================================== */
.tags { display: flex; flex-wrap: wrap; gap: .65rem; padding: 0; margin: 1rem 0 0; list-style: none; }
.tag {
  border: 1px solid var(--navy); color: var(--navy); border-radius: 0;
  padding: .5rem .9rem; font-size: .74rem; letter-spacing: var(--track-ui);
  text-transform: uppercase; font-weight: 500;
}

/* ===================================================================
   ABOUT  (two-column: text left, pull-quote right)
   =================================================================== */
.two-col { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.about-quote {
  border-left: 2px solid var(--cobalt); padding-left: 1.75rem;
}
.meta-line { display: inline-flex; align-items: center; gap: .5rem; color: var(--navy); font-weight: 600; letter-spacing: var(--track-ui); text-transform: uppercase; font-size: .8rem; }
.meta-line svg { width: 16px; height: 16px; stroke: var(--cobalt); }

/* ===================================================================
   CONTACT FORM
   =================================================================== */
.form { display: grid; gap: 1.25rem; max-width: 560px; }
.field { display: grid; gap: .45rem; }
.field label {
  font-size: .78rem; letter-spacing: var(--track-ui); text-transform: uppercase;
  font-weight: 600; color: var(--navy);
}
.field input, .field textarea {
  font-family: var(--sans); font-size: 1rem; color: var(--ink);
  border: 1px solid var(--border); border-radius: 0; padding: .85rem 1rem;
  background: #fff; transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
  min-height: 48px; width: 100%;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--cobalt);
  box-shadow: 0 0 0 3px rgba(37,99,235,.18);
}
.form-note { font-size: .85rem; color: #6a6b72; }
.form-status { font-size: .92rem; min-height: 1.2em; }
.form-status[data-state="ok"] { color: #157347; }
.form-status[data-state="err"] { color: #b42318; }

.contact-details { list-style: none; padding: 0; margin: 0; display: grid; gap: .85rem; }
.contact-details li { display: flex; align-items: center; gap: .75rem; color: var(--ink); }
.contact-details svg { width: 18px; height: 18px; stroke: var(--cobalt); flex: none; }
.contact-details a { color: var(--ink); }
.contact-details a:hover { color: var(--cobalt); }

/* ===================================================================
   FOOTER  (navy, white text)
   =================================================================== */
.site-footer { background: var(--navy); color: #fff; }
.site-footer .container { padding-block: clamp(2.75rem, 5vw, 4rem); }
.footer-top { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between; align-items: center; }
.footer-logo img { height: 52px; width: auto; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer-nav a {
  color: #fff; font-size: .8rem; letter-spacing: var(--track-ui);
  text-transform: uppercase; font-weight: 500;
}
.footer-nav a:hover { color: var(--cobalt-bright); }
.footer-quote {
  text-align: center; font-family: var(--serif); font-style: italic;
  color: var(--navy-on-dark); font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  margin: 2.25rem 0; padding-top: 2.25rem; border-top: 1px solid rgba(255,255,255,.12);
}
.footer-bottom { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; color: var(--navy-on-dark); font-size: .8rem; }
.footer-bottom .tracked { letter-spacing: var(--track-ui); text-transform: uppercase; }

/* ===================================================================
   SCROLL REVEAL  (fade up on viewport entry)
   =================================================================== */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .4s ease-out, transform .4s ease-out; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 860px) {
  .nav {
    position: fixed; inset: 0 0 auto; top: calc(38px + 76px);
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    padding: .5rem var(--pad) 1.25rem;
    transform: translateY(-130%); transition: transform .35s var(--ease);
    box-shadow: 0 14px 24px -18px rgba(26,31,94,.5);
  }
  .nav.is-open { transform: translateY(0); }
  .nav a { padding: .9rem 0; border-bottom: 1px solid var(--border); font-size: .9rem; }
  .nav a::after { display: none; }
  .nav-toggle { display: inline-flex; }

  .pillars .grid { grid-template-columns: 1fr; }
  .pillar { border-left: 0; border-top: 1px solid rgba(255,255,255,.12); }
  .pillar:first-child { border-top: 0; }

  .tiles, .tracks { grid-template-columns: 1fr; }
  .tile, .track { border-left: 0; border-top: 1px solid var(--border); }
  .tile:first-child, .track:first-child { border-top: 0; }

  .two-col { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  /* Keep the contact bar on one pinned line; shrink to fit small viewports. */
  .topbar .container { justify-content: space-between; gap: .5rem; min-height: 36px; }
  .topbar a { font-size: clamp(.6rem, 3vw, .72rem); letter-spacing: .04em; gap: .3rem; }
  .topbar svg { width: 12px; height: 12px; flex: none; }
  .site-header { top: 36px; }
  .nav { top: calc(36px + 76px); }
  .hero h1 { font-size: clamp(2rem, 8.5vw, 2.6rem); }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Print ---------- */
@media print {
  .topbar, .nav-toggle, .hero__motif, .btn { display: none; }
}