/* =========================================================
   MN Studio — Header / mega-menu navigation
   Modelled on the concepttocloud.com nav, in black / white / red.
   ========================================================= */

:root {
  --nav-bg: #ffffff;
  --nav-panel: #ffffff;
  --nav-ink: #0a0a0a;
  --nav-muted: #6b6b6b;
  --nav-label: #6b6b6b;
  --nav-line: #e7e7e7;
  --nav-red: #d62828;
  --nav-red-dark: #a91d1d;
  --nav-red-tint: #fdf1f1;
  --nav-red-line: #f3c9c9;
  --nav-btn-bg: #0a0a0a;
  --nav-btn-ink: #ffffff;
  --nav-shadow: 0 24px 48px -16px rgba(0, 0, 0, .18);
  --font-mono: var(--font-sans); /* labels use Inter too */
  --announce-h: 36px;
  --nav-h: 64px;
}



/* ---------- Shell ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  font-family: var(--font-nav, var(--font-sans));
}
/* Descriptions and the announcement bar read as body copy: keep them in Inter */
.announce, .mega-desc, .mega-tagline, .mega-feature p:not(.mega-feature-title) { font-family: var(--font-sans); }

.announce {
  height: var(--announce-h);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111111;
  color: #e8e8e8;
  font-size: 14px;
  letter-spacing: .005em;
  padding: 0 16px;
  text-align: center;
  border-bottom: 1px solid #262626;
}
.announce-link { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.announce-link:hover strong { text-decoration: underline; text-underline-offset: 3px; }
.announce strong { font-weight: 600; color: #fff; }
.announce-tag {
  display: inline-block;
  margin-right: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--nav-red);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  vertical-align: 1px;
}

.nav-bar {
  position: relative;
  background: var(--nav-bg);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background-color .3s ease;
}
.site-header.scrolled .nav-bar { border-bottom-color: var(--nav-line); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  gap: 24px;
}

/* ---------- Logo ---------- */
.nav-logo {
  display: flex;
  align-items: center;
  color: var(--nav-ink);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  flex-shrink: 0;
}

/* ---------- Top-level links ---------- */
.main-nav { margin-left: auto; }
.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: none;
  border: 0;
  font: inherit;
  font-size: 15px;
  white-space: nowrap;
  color: var(--nav-ink);
  cursor: pointer;
  border-radius: 8px;
  transition: color .2s ease;
}
.nav-link:hover,
.nav-item.open > .nav-link { color: var(--nav-red); }
.nav-link .chev { transition: transform .25s ease; }
.nav-item.open > .nav-link .chev { transform: rotate(180deg); }
.nav-link:focus-visible,
.nav-btn:focus-visible,
.mega a:focus-visible {
  outline: 2px solid var(--nav-red);
  outline-offset: 2px;
}

/* ---------- Actions ---------- */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}


.nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.nav-btn-primary,
.nav-btn-secondary { border-radius: 999px; }
.nav-btn-primary { background: var(--nav-btn-bg); color: var(--nav-btn-ink); }
.nav-btn-primary:hover { background: var(--nav-red); color: #fff; }
.nav-btn-secondary {
  background: transparent;
  color: var(--nav-ink);
  border-color: var(--nav-ink);
}
.nav-btn-secondary:hover { border-color: var(--nav-red); color: var(--nav-red); }
.nav-btn-outline {
  padding: 8px 11px;
  font-size: 13px;
  color: var(--nav-red);
  border-color: var(--nav-red);
  background: var(--nav-panel);
}
.nav-btn-outline:hover { background: var(--nav-red-tint); }
.nav-btn-accent {
  padding: 8px 11px;
  font-size: 13px;
  background: var(--nav-red);
  color: #fff;
}
.nav-btn-accent:hover { background: var(--nav-red-dark); }
.nav-cta-mobile { display: none; }

/* ---------- Mega menu (desktop) ---------- */
.mega {
  position: absolute;
  top: 100%;
  left: 50%;
  width: min(var(--wrap), calc(100vw - 32px));
  transform: translate(-50%, 6px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .2s ease, transform .25s var(--ease), visibility 0s linear .25s;
}
.nav-item.open > .mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
  transition: opacity .2s ease, transform .25s var(--ease), visibility 0s;
}
.mega-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.05fr;
  gap: 32px;
  padding: 32px;
  background: var(--nav-panel);
  border: 1px solid var(--nav-line);
  border-top: 0;
  border-radius: 0 0 14px 14px;
  box-shadow: var(--nav-shadow);
}

.mega-inner-3 { grid-template-columns: repeat(3, 1fr); }
.mega-col { display: flex; flex-direction: column; }
.mega-label {
  margin: 0 0 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--nav-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--nav-label);
}
.mega-col ul { display: flex; flex-direction: column; gap: 18px; }
.mega-col li a { display: block; }
.mega-col-wide { grid-column: span 2; }
.mega-col-wide ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: repeat(4, auto);
  grid-auto-flow: column;
  column-gap: 32px;
  row-gap: 18px;
}
.mega-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--nav-ink);
  letter-spacing: -0.005em;
  transition: color .2s ease;
}
.mega-desc {
  display: block;
  margin-top: 3px;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--nav-muted);
}
.mega-col li a:hover .mega-title { color: var(--nav-red); }
/* Publication wordmarks (text stand-ins until official logo files are added) */
.press-mark {
  display: block;
  margin-top: 6px;
  color: #3d3d3d;
  line-height: 1.2;
}
.mega-col li a:hover .press-mark { color: var(--nav-ink); }
.press-wsj {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.press-forbes {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.press-bloomberg {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.03em;
}
.press-bloomberg small {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--nav-muted);
  margin-left: 4px;
}
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.mega-title .ext { font-size: .85em; margin-left: 2px; }

.mega-more {
  margin-top: 18px;
  font-size: 14.5px;
  color: var(--nav-red);
}
.mega-more:hover { text-decoration: underline; text-underline-offset: 3px; }

.mega-tagline {
  margin: auto 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--nav-line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--nav-red);
}
.mega-col:has(.mega-tagline) ul { margin-bottom: 24px; }

.mega-feature {
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: var(--nav-red-tint);
  border: 1px solid var(--nav-red-line);
  border-radius: 12px;
}
.mega-feature p { font-size: 14px; line-height: 1.55; color: var(--nav-muted); margin: 0 0 10px; }
.mega-feature .mega-feature-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--nav-red);
  margin-bottom: 12px;
}
.mega-feature .mega-feature-title {
  font-size: 21px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--nav-ink);
}
.mega-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border-radius: 8px;
  background: var(--nav-red-line);
  color: var(--nav-red-dark);
}
.mega-feature-link {
  margin-top: auto;
  padding-top: 16px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--nav-red);
}
.mega-feature-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.mega-feature-actions { display: flex; gap: 8px; margin-top: auto; padding-top: 8px; }

/* ---------- Hamburger ---------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--nav-line);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 0 auto;
  background: var(--nav-ink);
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .nav-list { gap: 0; }
  .nav-link { padding: 8px 10px; }
  .nav-btn { padding: 10px 14px; font-size: 14.5px; }
}

@media (max-width: 1100px) {
  .mega-inner { grid-template-columns: repeat(3, 1fr); }
  .mega-feature { grid-column: 1 / -1; }
}

@media (max-width: 1080px) {
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }

  .main-nav {
    position: fixed;
    top: calc(var(--announce-h) + var(--nav-h));
    left: 0; right: 0; bottom: 0;
    margin: 0;
    padding: 8px 16px 32px;
    background: var(--nav-bg);
    border-top: 1px solid var(--nav-line);
    overflow-y: auto;
    overscroll-behavior: contain;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform .35s var(--ease), visibility 0s linear .35s;
  }
  .main-nav.open {
    transform: none;
    visibility: visible;
    transition: transform .35s var(--ease), visibility 0s;
  }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-item { border-bottom: 1px solid var(--nav-line); }
  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 18px 4px;
    font-size: 17px;
    border-radius: 0;
  }

  .mega,
  .nav-item.open > .mega {
    position: static;
    width: auto;
    transform: none;
    transition: none;
  }
  .mega { display: none; }
  .nav-item.open > .mega { display: block; }
  .mega-col-wide { grid-column: auto; }
  .mega-col-wide ul { display: flex; }
  .mega-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 4px 4px 24px;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .nav-cta-mobile { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
  .nav-cta-mobile .nav-btn { width: 100%; padding: 14px 18px; }
}

@media (max-width: 720px) {
  :root { --announce-h: 50px; }
  .announce { font-size: 12.5px; line-height: 1.35; }
  .announce-link { white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  .mega, .main-nav, .nav-link .chev { transition: none !important; }
}

/* Framework nav item: small triangle mark beside the label */
.nav-link-fw { gap: 7px; }
.nav-fw-icon { flex-shrink: 0; transition: transform .25s ease; }
.nav-link-fw:hover .nav-fw-icon { transform: rotate(-12deg); }
.nav-link-fw[aria-current="page"] { color: var(--nav-red); }
@media (max-width: 1080px) {
  .nav-link.nav-link-fw { justify-content: flex-start; gap: 10px; }
}
.nav-tag {
  display: inline-block; margin-left: 6px; padding: 2px 8px; vertical-align: 2px;
  font-family: var(--font-sans); font-size: 10.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; line-height: 1.5;
  color: var(--nav-red); background: rgba(214, 40, 40, .08); border: 1px solid rgba(214, 40, 40, .25); border-radius: 999px;
}
/* Menu entries that aren't live yet: shown, but not clickable */
.mega-soon { display: block; cursor: default; }
.mega-feature-soon { cursor: default; }
.mega-feature-soon:hover { text-decoration: none; }
.mega-feature-soon .nav-tag { margin-left: 0; }