/* ================================================================
   navbar-v3.css — Visual refresh navbar for FinCalculators
   ================================================================ */

.nav3-wrap,
.nav3-wrap * {
  box-sizing: border-box;
}

/* ── Wrap ── */
.nav3-wrap {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  margin: 0;
  z-index: 1000;
  backdrop-filter: blur(14px) saturate(1.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  background: rgba(245, 248, 255, 0.82);
  border-bottom: 1px solid rgba(216, 227, 251, 0.65);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

/* Subtle shadow after scrolling — toggled by JS */
.nav3-wrap.is-scrolled {
  box-shadow: 0 4px 24px -8px rgba(18, 50, 106, 0.12);
  background: rgba(245, 248, 255, 0.94);
}

/* ── Inner ── */
.nav3-inner {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0.55rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  position: relative;
}

/* ── Brand ── */
.nav3-brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  transition: opacity 0.15s ease;
}

.nav3-brand:hover {
  opacity: 0.8;
}

/* ── Hamburger toggle ── */
.nav3-toggle {
  margin-left: auto;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid #cad6f0;
  background: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4.5px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nav3-toggle:hover {
  background: #edf3ff;
  border-color: #a8bde6;
}

.nav3-bar {
  width: 18px;
  height: 2px;
  background: #1a335f;
  border-radius: 999px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

/* Animate hamburger → X */
.nav3-toggle.is-active .nav3-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav3-toggle.is-active .nav3-bar:nth-child(2) {
  opacity: 0;
}
.nav3-toggle.is-active .nav3-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── Menu ── */
.nav3-menu {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 auto;
  min-width: 0;
  gap: 0;
}

.nav3-menu-row {
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-end;
  align-items: center;
  margin-left: auto;
  gap: 0.16rem;
}

.nav3-menu-row--primary {
  padding: 0;
}

.nav3-menu > * {
  flex: 0 0 auto;
}

/* ── Nav links ── */
.nav3-link,
.nav3-group summary {
  text-decoration: none;
  list-style: none;
  color: #1b335e;
  font-weight: 600;
  font-size: 0.84rem;
  padding: 0.4rem 0.54rem;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.nav3-link:hover,
.nav3-group summary:hover {
  background: #eaf1ff;
  color: #0f4eba;
}

.nav3-group[open] summary {
  background: #dde9ff;
  color: #0f4eba;
}

.nav3-link--utility {
  color: #1b335e;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 0.4rem 0.54rem;
}

.nav3-link--utility:hover {
  color: #0f4eba;
}

/* ── Dropdown group ── */
.nav3-group {
  position: relative;
}

.nav3-group summary {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.nav3-group summary::-webkit-details-marker {
  display: none;
}

.nav3-group summary::marker {
  display: none;
  content: "";
}

/* ── Chevron arrow ── */
.nav3-arrow {
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.nav3-group[open] .nav3-arrow {
  transform: rotate(180deg);
}

/* ── Dropdown panel ── */
.nav3-panel {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: calc(100% + 0.55rem);
  min-width: 260px;
  display: grid;
  gap: 0.15rem;
  padding: 0.5rem;
  border-radius: 14px;
  border: 1px solid #d4e0f8;
  background: #fff;
  box-shadow:
    0 8px 30px -10px rgba(18, 50, 106, 0.18),
    0 2px 8px -2px rgba(18, 50, 106, 0.08);
  animation: nav3DropIn 0.18s ease;
}

@keyframes nav3DropIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

.nav3-panel a {
  color: #1d407f;
  text-decoration: none;
  padding: 0.52rem 0.6rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.9rem;
  line-height: 1.35;
  transition: background 0.12s ease, color 0.12s ease;
}

.nav3-panel a:hover {
  background: #edf4ff;
  color: #0a50bc;
}

/* ── Wide 2-column panel (Investment) ── */
.nav3-panel--wide {
  min-width: 480px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: start;
}

.nav3-panel-col {
  display: grid;
  gap: 0.15rem;
  padding: 0.25rem;
}

.nav3-panel-title {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #8fa3c8;
  padding: 0.4rem 0.6rem 0.25rem;
  cursor: default;
}


.nav3-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: #0f6fff;
  color: #fff !important;
  border-radius: 10px;
  padding: 0.48rem 0.8rem;
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: 0 2px 8px -2px rgba(15, 111, 255, 0.35);
  transition: background 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.nav3-cta:hover {
  background: #0a50bc !important;
  box-shadow: 0 4px 14px -4px rgba(15, 111, 255, 0.45);
  transform: translateY(-1px);
}

.nav3-cta svg {
  flex-shrink: 0;
}

/* ================================================================
   DESKTOP — hide panel when closed
   ================================================================ */
@media (min-width: 901px) {
  .nav3-group:not([open]) .nav3-panel {
    display: none;
  }
}

@media (max-width: 1120px) and (min-width: 901px) {
  .nav3-menu-row {
    gap: 0.1rem;
  }

  .nav3-link,
  .nav3-group summary,
  .nav3-link--utility {
    font-size: 0.8rem;
    padding: 0.38rem 0.48rem;
  }

  .nav3-cta {
    font-size: 0.8rem;
    padding: 0.44rem 0.7rem;
  }
}

/* ================================================================
   MOBILE
   ================================================================ */
@media (max-width: 900px) {
  .nav3-toggle {
    display: inline-flex;
  }

  .nav3-menu {
    position: absolute;
    left: 0.5rem;
    right: 0.5rem;
    top: calc(100% + 0.5rem);
    border-radius: 16px;
    border: 1px solid #d4e0f8;
    background: #fff;
    box-shadow:
      0 20px 40px -16px rgba(8, 33, 83, 0.2),
      0 4px 12px -4px rgba(8, 33, 83, 0.08);
    padding: 0.6rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.35rem;
    animation: nav3SlideDown 0.2s ease;
  }

  @keyframes nav3SlideDown {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .nav3-menu.is-open {
    display: flex;
  }

  .nav3-menu-row {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 0.15rem;
  }

  .nav3-menu-row--primary {
    border: none;
    background: transparent;
    border-radius: 0;
    padding: 0;
  }

  .nav3-link,
  .nav3-group summary {
    width: 100%;
    padding: 0.68rem 0.8rem;
    font-size: 0.93rem;
  }

  .nav3-link--utility {
    color: #1b335e;
    font-size: 0.93rem;
    padding: 0.68rem 0.8rem;
  }

  .nav3-group summary {
    display: flex;
    justify-content: space-between;
  }

  .nav3-group .nav3-panel {
    position: static;
    left: auto;
    transform: none;
    margin-top: 0.2rem;
    box-shadow: none;
    border-radius: 10px;
    background: #f6f9ff;
    border: 1px solid #e2ecff;
    min-width: 100%;
    animation: none;
  }

  .nav3-group:not([open]) .nav3-panel {
    display: none;
  }

  .nav3-cta {
    text-align: center;
    justify-content: center;
    margin-top: 0.15rem;
    padding: 0.65rem 0.8rem;
    font-size: 0.93rem;
  }

  .nav3-panel--wide {
    grid-template-columns: 1fr;
    min-width: 100%;
  }

  .nav3-panel-col {
    padding: 0;
  }
}