/* ============================================================
   KEYSTONE INTELLIGENCE GROUP · SHARED STYLESHEET
   Version: 1.1
   Changes vs 1.0:
   - Lightened --k-mid token to meet WCAG AA contrast on body text
   - Added :focus-visible rules site-wide for keyboard accessibility
   - Added aria-current="page" rule for active nav state
   - Replaced .k-callout left-stripe with full-border + gold tint
   - Added mobile nav open state with hamburger animation
   - Reduced top-stripe accent on non-featured cards
   ============================================================ */

/* ─── GOOGLE FONTS ─── */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,600&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;700&display=swap');

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

/* ─── DESIGN TOKENS ─── */
:root {
  /* Backgrounds */
  --k-bg:        #0C0C12;   /* page background, near black */
  --k-bg-2:      #111118;   /* secondary sections */
  --k-bg-3:      #161622;   /* tertiary / cards */
  --k-card:      rgba(255,255,255,0.03);
  --k-card-h:    rgba(255,255,255,0.055);

  /* Brand colours */
  --k-gold:      #C49A3C;   /* primary accent, amber gold */
  --k-gold-l:    #D4AF5A;   /* hover / light gold */
  --k-gold-dim:  rgba(196,154,60,0.12);
  --k-border:    rgba(196,154,60,0.13);
  --k-border-h:  rgba(196,154,60,0.32);

  /* Text. Note: --k-mid lightened from #706B62 (3.55:1) to #8E887D (~5.0:1) for WCAG AA on dark */
  --k-white:     #FFFFFF;
  --k-grey:      #C0BBB3;   /* body text */
  --k-mid:       #8E887D;   /* secondary text, now AA-compliant on --k-bg */
  --k-dark-txt:  #0C0C12;   /* text on gold bg */

  /* Typography */
  --font-head:   'Cormorant Garamond', Georgia, serif;
  --font-body:   'Inter', -apple-system, sans-serif;
  --font-mono:   'JetBrains Mono', monospace;

  /* Radii */
  --r-sm:  6px;
  --r-md:  10px;
  --r-lg:  16px;

  /* Widths */
  --w-content: 740px;
  --w-max:     1180px;
}

/* ─── BASE ─── */
body {
  font-family: var(--font-body);
  background: var(--k-bg);
  color: var(--k-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ─── FOCUS STATES (site-wide keyboard accessibility) ─── */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--k-gold);
  outline-offset: 3px;
  border-radius: 2px;
}
/* Form inputs get their own focus styling defined per-page; suppress the default ring there */
input:focus-visible,
select:focus-visible,
textarea:focus-visible { outline-offset: 0; }

/* ─── SKIP LINK (a11y) ─── */
.k-skip-link {
  position: absolute;
  top: -40px;
  left: 1rem;
  background: var(--k-gold);
  color: var(--k-dark-txt);
  padding: 0.5rem 1rem;
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: 0.875rem;
  z-index: 999;
  transition: top 0.2s;
}
.k-skip-link:focus { top: 1rem; }

/* ─── NAVIGATION ─── */
.k-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2.5rem;
  background: rgba(12,12,18,0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--k-border);
}

.k-nav__logo {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--k-white);
  text-decoration: none;
}
.k-nav__logo em {
  font-style: normal;
  color: var(--k-gold);
}

.k-nav__links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}
.k-nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--k-grey);
  transition: color 0.2s;
}
.k-nav__links a:hover { color: var(--k-white); }

/* Active page indicator (replaces inline color styles) */
.k-nav__links a[aria-current="page"] {
  color: var(--k-white);
}
.k-nav__links a[aria-current="page"]:not(.btn-nav) {
  position: relative;
}
.k-nav__links a[aria-current="page"]:not(.btn-nav)::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--k-gold);
  opacity: 0.6;
}

/* ─── BUTTONS ─── */
.btn-primary {
  display: inline-block;
  background: var(--k-gold);
  color: var(--k-dark-txt);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.75rem 1.75rem;
  border-radius: var(--r-md);
  border: none;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  text-align: center;
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background: var(--k-gold-l);
  box-shadow: 0 4px 20px rgba(196,154,60,0.28);
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--k-gold);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.7rem 1.7rem;
  border-radius: var(--r-md);
  border: 1.5px solid var(--k-gold);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  text-align: center;
}
.btn-outline:hover {
  background: var(--k-gold-dim);
  color: var(--k-gold-l);
}

.btn-nav {
  display: inline-block;
  background: var(--k-gold);
  color: var(--k-dark-txt);
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  border-radius: var(--r-sm);
  transition: background 0.2s;
}
.btn-nav:hover { background: var(--k-gold-l); }

/* When .btn-nav is the current page (contact page), invert to outline style */
.k-nav__links a.btn-nav[aria-current="page"] {
  background: var(--k-gold-dim);
  color: var(--k-gold);
  border: 1px solid rgba(196,154,60,0.3);
  padding: calc(0.5rem - 1px) calc(1.25rem - 1px);
}
.k-nav__links a.btn-nav[aria-current="page"]::after { display: none; }

/* ─── SECTION WRAPPER ─── */
.k-section {
  padding: 6rem 2.5rem;
}
.k-section--dark  { background: var(--k-bg); }
.k-section--alt   { background: var(--k-bg-2); }
.k-section--card  { background: var(--k-bg-3); }

.k-inner {
  max-width: var(--w-max);
  margin: 0 auto;
}
.k-inner--narrow {
  max-width: 800px;
  margin: 0 auto;
}

/* ─── SECTION LABEL ─── */
.k-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--k-gold);
  margin-bottom: 1.25rem;
}

/* ─── HEADINGS ─── */
.k-h1 {
  font-family: var(--font-head);
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--k-white);
  letter-spacing: -0.01em;
}
.k-h2 {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--k-white);
}
.k-h3 {
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 2vw, 1.65rem);
  font-weight: 600;
  line-height: 1.3;
  color: var(--k-white);
}
.k-lead {
  font-size: 1.1rem;
  line-height: 1.75;
  color: var(--k-grey);
  max-width: 640px;
}

/* ─── GOLD RULE ─── */
.k-rule {
  display: block;
  width: 48px;
  height: 2px;
  background: var(--k-gold);
  margin: 1.5rem 0;
  border: none;
  opacity: 0.8;
}

/* ─── GOLD DIVIDER ─── */
.k-divider {
  border: none;
  border-top: 1px solid var(--k-border);
  margin: 0;
}

/* ─── CARDS ─── */
.k-card {
  background: var(--k-card);
  border: 1px solid var(--k-border);
  border-radius: var(--r-lg);
  padding: 2rem;
  transition: border-color 0.25s, background 0.25s;
}
.k-card:hover {
  background: var(--k-card-h);
  border-color: var(--k-border-h);
}

/* ─── STAT BOX ─── */
.k-stat {
  text-align: center;
}
.k-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--k-gold);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.4rem;
}
.k-stat__label {
  font-size: 0.82rem;
  color: var(--k-mid);
  line-height: 1.5;
}

/* ─── CALLOUT / PULLQUOTE ───
   Replaces former left-stripe border with full-border + tinted background.
   Same visual emphasis, no side-stripe ban violation. */
.k-callout {
  background: linear-gradient(135deg, rgba(196,154,60,0.08), rgba(196,154,60,0.03));
  border: 1px solid var(--k-border-h);
  border-radius: var(--r-md);
  padding: 1.75rem 2rem;
  margin: 2.5rem 0;
  position: relative;
}
.k-callout::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--k-gold);
  margin-bottom: 1rem;
  opacity: 0.8;
}
.k-callout p {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--k-grey);
  line-height: 1.7;
  margin: 0;
}

/* ─── FOOTER ─── */
.k-footer {
  background: var(--k-bg);
  border-top: 1px solid var(--k-border);
  padding: 4rem 2.5rem 2rem;
}
.k-footer__inner {
  max-width: var(--w-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 3rem;
}
.k-footer__brand p {
  font-size: 0.875rem;
  color: var(--k-mid);
  line-height: 1.7;
  margin-top: 0.75rem;
  max-width: 260px;
}
.k-footer__col h5 {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--k-gold);
  margin-bottom: 1rem;
}
.k-footer__col a {
  display: block;
  font-size: 0.875rem;
  color: var(--k-mid);
  margin-bottom: 0.6rem;
  transition: color 0.2s;
}
.k-footer__col a:hover { color: var(--k-white); }
.k-footer__bottom {
  max-width: var(--w-max);
  margin: 2.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--k-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.k-footer__bottom p {
  font-size: 0.78rem;
  color: var(--k-mid);
}
.k-footer__bottom a {
  font-size: 0.78rem;
  color: var(--k-mid);
  transition: color 0.2s;
}
.k-footer__bottom a:hover { color: var(--k-gold); }

/* ─── BLOG ARTICLE LAYOUT ─── */
.k-article-hero {
  padding: 9rem 2.5rem 4.5rem;
  background: linear-gradient(155deg, #161622 0%, var(--k-bg) 65%);
  border-bottom: 1px solid var(--k-border);
}
.k-article-hero__inner {
  max-width: var(--w-content);
  margin: 0 auto;
}
.k-article-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--k-white);
  margin-bottom: 1.5rem;
}
.k-article-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.83rem;
  color: var(--k-mid);
}

.k-article-wrap {
  padding: 4.5rem 2.5rem;
  display: grid;
  grid-template-columns: 1fr 288px;
  gap: 4.5rem;
  max-width: 1080px;
  margin: 0 auto;
  align-items: start;
}
.k-article-body { min-width: 0; }
.k-article-body h2 {
  font-family: var(--font-head);
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--k-white);
  margin: 3rem 0 1rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--k-border);
}
.k-article-body h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--k-gold);
  margin: 2rem 0 0.75rem;
}
.k-article-body p {
  font-size: 1rem;
  line-height: 1.82;
  color: var(--k-grey);
  margin-bottom: 1.25rem;
}
.k-article-body strong { color: var(--k-white); font-weight: 600; }
.k-article-body ul,
.k-article-body ol {
  color: var(--k-grey);
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}
.k-article-body li { margin-bottom: 0.6rem; line-height: 1.75; }
.k-article-body a { color: var(--k-gold); border-bottom: 1px solid rgba(196,154,60,0.3); transition: border-color 0.2s; }
.k-article-body a:hover { border-bottom-color: var(--k-gold); }

/* Sidebar */
.k-sidebar { position: sticky; top: 5.5rem; }
.k-sidebar__card {
  background: var(--k-card);
  border: 1px solid var(--k-border);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}
.k-sidebar__card h4 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--k-white);
  margin-bottom: 1rem;
}
.k-toc { list-style: none; }
.k-toc li { margin-bottom: 0.5rem; }
.k-toc a {
  display: block;
  font-size: 0.86rem;
  color: var(--k-mid);
  padding: 0.25rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: color 0.2s;
}
.k-toc a:hover { color: var(--k-gold); }
.k-sidebar__cta {
  background: linear-gradient(135deg, #161622, #1a1a2a);
  border: 1px solid rgba(196,154,60,0.28);
  border-radius: var(--r-lg);
  padding: 1.75rem;
  text-align: center;
}
.k-sidebar__cta p {
  font-size: 0.875rem;
  color: var(--k-grey);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.k-sidebar__cta .btn-primary,
.k-sidebar__cta .btn-outline { width: 100%; margin-top: 0.75rem; }

/* Blog related section */
.k-related {
  padding: 4.5rem 2.5rem;
  background: var(--k-bg-2);
  border-top: 1px solid var(--k-border);
}
.k-related__inner { max-width: var(--w-max); margin: 0 auto; }
.k-related h3 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--k-white);
  margin-bottom: 2rem;
}
.k-related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.k-related__card {
  display: block;
  background: var(--k-card);
  border: 1px solid var(--k-border);
  border-radius: var(--r-lg);
  padding: 1.5rem;
  transition: border-color 0.25s, transform 0.25s;
}
.k-related__card:hover {
  border-color: var(--k-border-h);
  transform: translateY(-2px);
}
.k-related__card .tag {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--k-gold);
  margin-bottom: 0.75rem;
}
.k-related__card h4 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--k-white);
  line-height: 1.4;
}

/* ─── MOBILE HAMBURGER (nav) ─── */
/* Tap target sized to WCAG 2.5.5 / iOS HIG minimum: 44×44 CSS pixels.
   The visual bars stay tight (22px wide, 14px tall stack) but the click
   area is generously padded so thumbs reliably hit it. */
.k-nav__mobile-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  margin: -8px;
}
.k-nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--k-white);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
  transform-origin: center;
}

/* Hamburger → X animation when nav is open */
.k-nav--open .k-nav__mobile-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.k-nav--open .k-nav__mobile-toggle span:nth-child(2) {
  opacity: 0;
}
.k-nav--open .k-nav__mobile-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .k-footer__inner { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
}
@media (max-width: 900px) {
  .k-article-wrap { grid-template-columns: 1fr; gap: 3rem; }
  .k-sidebar { position: static; }
}
@media (max-width: 768px) {
  .k-nav { padding: 1rem 1.5rem; }

  /* Mobile menu: drops from under the nav, full-width */
  .k-nav__links {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(12,12,18,0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 1.5rem;
    border-bottom: 1px solid var(--k-border);
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }
  .k-nav--open .k-nav__links {
    display: flex;
  }
  .k-nav__links li {
    border-bottom: 1px solid var(--k-border);
  }
  .k-nav__links li:last-child {
    border-bottom: none;
    padding-top: 1rem;
  }
  .k-nav__links a {
    display: block;
    font-size: 1.05rem;
    padding: 1rem 0.25rem;
    color: var(--k-white);
  }
  .k-nav__links a[aria-current="page"]::after {
    display: none;
  }
  .k-nav__links a.btn-nav {
    text-align: center;
    padding: 0.85rem 1.25rem;
    font-size: 0.95rem;
  }
  .k-nav__mobile-toggle {
    display: flex;
  }

  .k-section { padding: 4rem 1.5rem; }
  .k-footer { padding: 3rem 1.5rem 1.5rem; }
  .k-footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .k-footer__bottom { flex-direction: column; align-items: flex-start; }
  .k-article-hero { padding: 7rem 1.5rem 3rem; }
  .k-article-wrap { padding: 3rem 1.5rem; }
  .k-related { padding: 3rem 1.5rem; }
}
@media (max-width: 480px) {
  .k-h1 { font-size: 2.2rem; }
  .k-h2 { font-size: 1.75rem; }
}

/* ─── REDUCED MOTION ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   SESSION ADDITIONS — CEO profile, footer contact, contact phones
   ============================================================ */

/* ─── NAMED CEO PROFILE (about page) ─── */
.ceo-profile {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 4rem;
  align-items: start;
  padding: 5rem 0;
  border-bottom: 1px solid var(--k-border);
}
.ceo-profile__photo {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--k-border);
  background: var(--k-card);
}
.ceo-profile__photo img { width: 100%; height: auto; display: block; }
.ceo-profile__photo::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  box-shadow: inset 0 -80px 60px -40px rgba(12,12,18,0.5);
  pointer-events: none;
}
.ceo-profile__body { padding-top: 0.5rem; }
.ceo-profile__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--k-gold);
  margin-bottom: 0.75rem;
}
.ceo-profile__name {
  font-family: var(--font-head);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--k-white);
  line-height: 1.1;
}
.ceo-profile__role {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--k-mid);
  margin-top: 0.5rem;
  margin-bottom: 1.75rem;
}
.ceo-profile__body p {
  font-size: 0.95rem;
  color: var(--k-grey);
  line-height: 1.8;
  margin-bottom: 1rem;
}
.ceo-profile__body p:last-child { margin-bottom: 0; }

/* ─── FOOTER CONTACT BLOCK (all pages) ─── */
.k-footer__contact {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.k-footer__contact a {
  font-size: 0.82rem;
  color: var(--k-mid);
  transition: color 0.2s;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}
.k-footer__contact a:hover { color: var(--k-gold); }
.k-footer__contact .cc {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--k-mid);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--k-border);
  border-radius: var(--r-sm);
  padding: 0.1rem 0.35rem;
}

/* ─── CONTACT PAGE — DIRECT PHONE ROWS ─── */
.contact-direct__phones {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}
.contact-direct__phones a {
  font-size: 0.9rem;
  color: var(--k-grey);
  font-weight: 500;
  border-bottom: none;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  transition: color 0.2s;
}
.contact-direct__phones a:hover { color: var(--k-white); }
.contact-direct__cc {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--k-mid);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--k-border);
  border-radius: var(--r-sm);
  padding: 0.15rem 0.4rem;
}

/* ─── CEO profile + footer contact: mobile ─── */
@media (max-width: 768px) {
  .ceo-profile { grid-template-columns: 1fr; gap: 2rem; }
  .ceo-profile__photo { max-width: 320px; }
  .ceo-profile__name { font-size: 2rem; }
}