/* ============================================================
   bADles shared nav — desktop / tablet / mobile drawer
   Applied across: index, test, plans, report, apply
   NOT applied on: iterate (URL-only page, excluded from nav)

   ── Color tokens ────────────────────────────────────────────
   --bdl-nav-blue   = bADle Test accent
   --bdl-nav-purple = bADle Plans accent
   --accent (page)  = bADle Report accent (red, from page globals)

   ── Class color map ─────────────────────────────────────────
   Native (home + drawer — always the product's own color):
     .bdl-nav__cross-link--test    blue
     .bdl-nav__cross-link--plans   purple
     .bdl-nav__cross-link--report  red
     .bdl-drawer__channel--test    blue
     .bdl-drawer__channel--plans   purple
     .bdl-drawer__channel--report  red

   Current-page accent (product pages — all cross links adopt
   the accent of the page the user is currently on):
     .bdl-nav__cross-link--current-test    blue
     .bdl-nav__cross-link--current-plans   purple
     .bdl-nav__cross-link--current-report  red

   Page label + CTA on product pages follow the same convention:
     .bdl-nav__page-label--{test|plans|report}
     .bdl-nav__cta--{blue|purple|accent}
   ============================================================ */

:root {
  --bdl-nav-blue: oklch(68% 0.16 250);
  --bdl-nav-blue-dim: oklch(58% 0.16 250);
  --bdl-nav-purple: oklch(68% 0.18 300);
  --bdl-nav-purple-dim: oklch(58% 0.18 300);
  --bdl-nav-bg: oklch(9% 0.01 250 / .92);
  --bdl-nav-bg-solid: oklch(9% 0.01 250 / .98);
}

/* ============================================================
   Desktop nav bar
   ============================================================ */

.bdl-nav {
  position: sticky;
  top: 0;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem clamp(1.25rem, 4vw, 4rem);
  background: var(--bdl-nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-sub);
}

.bdl-nav__left,
.bdl-nav__right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-width: 0;
}

.bdl-nav__logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.02em;
  color: var(--text);
  text-decoration: none;
  white-space: nowrap;
}
.bdl-nav__logo em {
  color: var(--accent);
  font-style: normal;
}

.bdl-nav__back {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .85rem;
  color: var(--faint);
  text-decoration: none;
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: -.01em;
  transition: color 150ms;
  white-space: nowrap;
}
.bdl-nav__back:hover {
  color: var(--muted);
}

.bdl-nav__divider {
  width: 1px;
  height: 1.25rem;
  background: var(--border);
  flex-shrink: 0;
}

.bdl-nav__cross {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.bdl-nav__cross-link {
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 150ms;
}
.bdl-nav__cross-link:hover {
  opacity: .75;
}
.bdl-nav__cross-link--test { color: var(--bdl-nav-blue); }
.bdl-nav__cross-link--plans { color: var(--bdl-nav-purple); }
.bdl-nav__cross-link--report { color: var(--accent); }

/* On product pages, every cross-product link adopts the current page's accent */
.bdl-nav__cross-link--current-test { color: var(--bdl-nav-blue); }
.bdl-nav__cross-link--current-plans { color: var(--bdl-nav-purple); }
.bdl-nav__cross-link--current-report { color: var(--accent); }

.bdl-nav__sections {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.bdl-nav__link {
  font-size: .85rem;
  color: var(--muted);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: color 150ms;
}
.bdl-nav__link:hover {
  color: var(--text);
}

.bdl-nav__page-label {
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.bdl-nav__page-label--test { color: var(--bdl-nav-blue); }
.bdl-nav__page-label--plans { color: var(--bdl-nav-purple); }
.bdl-nav__page-label--report { color: var(--accent); }

.bdl-nav__cta {
  padding: 9px 22px;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-family: var(--sans);
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  min-height: 40px;
  transition: background 120ms var(--ease), transform 120ms var(--ease);
}
.bdl-nav__cta:hover {
  transform: translateY(-1px);
}
.bdl-nav__cta--accent { background: var(--accent); }
.bdl-nav__cta--accent:hover { background: var(--accent-dim); }
.bdl-nav__cta--blue { background: var(--bdl-nav-blue); }
.bdl-nav__cta--blue:hover { background: var(--bdl-nav-blue-dim); }
.bdl-nav__cta--purple { background: var(--bdl-nav-purple); }
.bdl-nav__cta--purple:hover { background: var(--bdl-nav-purple-dim); }

/* ============================================================
   Hamburger (desktop hidden, tablet/mobile visible)
   ============================================================ */

.bdl-nav__burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.bdl-nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
  transform-origin: center;
  transition: transform 220ms var(--ease), opacity 150ms;
}
.bdl-nav__burger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.bdl-nav__burger.is-open span:nth-child(2) {
  opacity: 0;
}
.bdl-nav__burger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   Mobile drawer
   ============================================================ */

.bdl-drawer {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bdl-nav-bg-solid);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  padding: clamp(3.5rem, 10vw, 5rem) clamp(1.5rem, 6vw, 3rem) max(1.5rem, env(safe-area-inset-bottom));
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease), visibility 0s linear 220ms;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.bdl-drawer.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}

.bdl-drawer__close {
  position: absolute;
  top: .5rem;
  right: .75rem;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bdl-drawer__logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -.02em;
  color: var(--text);
  text-decoration: none;
  align-self: flex-start;
  margin-bottom: 2rem;
}
.bdl-drawer__logo em {
  color: var(--accent);
  font-style: normal;
}

.bdl-drawer__group-label {
  font-family: var(--mono);
  font-size: .62rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--faint);
  font-weight: 700;
  margin-bottom: .5rem;
  padding-left: .25rem;
}

.bdl-drawer__channels,
.bdl-drawer__sections {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 1.75rem;
}

.bdl-drawer__channel {
  font-size: 1.2rem;
  font-weight: 700;
  text-decoration: none;
  padding: 12px 8px;
  border-radius: 8px;
  min-height: 48px;
  display: flex;
  align-items: center;
  position: relative;
}
.bdl-drawer__channel--test { color: var(--bdl-nav-blue); }
.bdl-drawer__channel--plans { color: var(--bdl-nav-purple); }
.bdl-drawer__channel--report { color: var(--accent); }

.bdl-drawer__channel.is-current::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 6px;
  height: 2px;
  background: currentColor;
  opacity: .45;
  border-radius: 1px;
}

.bdl-drawer__section {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  padding: 10px 8px;
  border-radius: 8px;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.bdl-drawer__section:active,
.bdl-drawer__section:hover {
  color: var(--text);
}

.bdl-drawer__cta {
  margin-top: auto;
  padding: 16px 24px;
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bdl-drawer__cta--accent { background: var(--accent); }
.bdl-drawer__cta--blue { background: var(--bdl-nav-blue); }
.bdl-drawer__cta--purple { background: var(--bdl-nav-purple); }

body.bdl-drawer-open {
  overflow: hidden;
}

/* ============================================================
   Responsive
   ============================================================ */

/* Tablet + mobile: collapse straight to hamburger drawer at ≤900px */
@media (max-width: 900px) {
  .bdl-nav {
    padding: .75rem 1rem;
  }
  .bdl-nav__sections,
  .bdl-nav__cross,
  .bdl-nav__divider,
  .bdl-nav__page-label,
  .bdl-nav__cta {
    display: none;
  }
  .bdl-nav__burger {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bdl-nav__cta,
  .bdl-nav__burger span,
  .bdl-drawer {
    transition: none;
  }
}

/* ============================================================
   Tool module color tokens
   ============================================================ */

:root {
  --bdl-nav-green:        oklch(72% 0.19 142);
  --bdl-nav-green-dim:    oklch(62% 0.19 142);
  --bdl-nav-teal:         oklch(72% 0.17 192);
  --bdl-nav-teal-dim:     oklch(62% 0.17 192);
  --bdl-nav-amber:        oklch(78% 0.16 75);
  --bdl-nav-amber-dim:    oklch(65% 0.16 75);
  --bdl-nav-violet:       oklch(68% 0.18 285);
  --bdl-nav-violet-dim:   oklch(58% 0.18 285);
  --bdl-nav-lime:         oklch(82% 0.22 128);
  --bdl-nav-lime-dim:     oklch(70% 0.22 128);
}

/* Cross-link tool colors — all use site accent */
.bdl-nav__cross-link--lines,
.bdl-nav__cross-link--platforms,
.bdl-nav__cross-link--weapons,
.bdl-nav__cross-link--intelligence,
.bdl-nav__cross-link--launch       { color: var(--accent,oklch(68% 0.22 22)); }

/* Page label tool colors — all use site accent */
.bdl-nav__page-label--lines,
.bdl-nav__page-label--platforms,
.bdl-nav__page-label--weapons,
.bdl-nav__page-label--intelligence,
.bdl-nav__page-label--launch       { color: var(--accent,oklch(68% 0.22 22)); }

/* Drawer channel tool colors — all use site accent */
.bdl-drawer__channel--lines,
.bdl-drawer__channel--platforms,
.bdl-drawer__channel--weapons,
.bdl-drawer__channel--intelligence,
.bdl-drawer__channel--launch       { color: var(--accent,oklch(68% 0.22 22)); }