/* ========================
   NAVBAR — Floating Pill (Light Mode)
   ======================== */

/*
  Floating pill, centered.
  Light mode: white frosted glass, dark text, green active/hover states.
  Contracts on scroll-down, expands on scroll-up.
*/

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  display: flex;
  justify-content: center;
  padding: 1.25rem 1.5rem;
  pointer-events: none;
  transition: padding 500ms var(--ease-out-expo);
}

.navbar.scrolled {
  padding: 0.75rem 1.5rem;
}

/* ── The pill itself ── */
.navbar__pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  pointer-events: all;
  position: relative;

  width: calc(100% - 1rem);
  max-width: clamp(780px, 88vw, 1260px);
  padding: 0.65rem 0.65rem 0.65rem 1.5rem;

  background: rgba(255, 255, 255, 0.38);
  backdrop-filter: blur(40px) saturate(200%);
  -webkit-backdrop-filter: blur(40px) saturate(200%);

  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;

  box-shadow:
    0 4px 32px rgba(0, 0, 0, 0.08),
    0 1px 0 rgba(255, 255, 255, 0.75) inset,
    0 -1px 0 rgba(0, 0, 0, 0.03) inset;

  transition:
    max-width       550ms var(--ease-out-expo),
    padding         500ms var(--ease-out-expo),
    background      400ms ease,
    border-color    400ms ease,
    box-shadow      400ms ease;
}

/* Top-edge shimmer — white → green → white */
.navbar__pill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 12%;
  right: 12%;
  height: 1px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 0, 0, 0.08) 25%,
    rgba(0, 168, 107, 0.45) 50%,
    rgba(0, 0, 0, 0.08) 75%,
    transparent 100%
  );
  opacity: 0.7;
  pointer-events: none;
  transition: opacity 400ms ease, left 550ms var(--ease-out-expo), right 550ms var(--ease-out-expo);
}

/* Contracted state */
.navbar.scrolled .navbar__pill {
  max-width: 820px;
  padding: 0.5rem 0.5rem 0.5rem 1.25rem;
  background: rgba(255, 255, 255, 0.55);
  border-color: rgba(255, 255, 255, 0.60);
  box-shadow:
    0 8px 36px rgba(0, 0, 0, 0.10),
    0 1px 0 rgba(255, 255, 255, 0.80) inset;
}

.navbar.scrolled .navbar__pill::after {
  left: 18%;
  right: 18%;
  opacity: 1;
}

/* ── Over-dark section: invert to light text + dark glass ── */
.navbar.over-dark .navbar__pill {
  background: rgba(15, 15, 14, 0.28);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow:
    0 4px 32px rgba(0, 0, 0, 0.28),
    0 1px 0 rgba(255, 255, 255, 0.10) inset,
    0 -1px 0 rgba(0, 0, 0, 0.12) inset;
}

.navbar.over-dark .navbar__nav a {
  color: rgba(255, 255, 255, 0.70);
}

.navbar.over-dark .navbar__nav a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.10);
}

.navbar.over-dark .navbar__nav a.active {
  color: var(--color-accent);
  background: rgba(0, 168, 107, 0.18);
}

.navbar.over-dark .navbar__hamburger {
  border-color: rgba(255, 255, 255, 0.20);
  background: rgba(255, 255, 255, 0.08);
}

.navbar.over-dark .navbar__hamburger span {
  background: #ffffff;
}

/* Logo swap is handled in JS (src attribute) */

/* ── Logo ── */
.navbar__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.navbar__logo-img {
  height: 36px;
  width: auto;
  display: block;
  transition: height 500ms var(--ease-out-expo), opacity 200ms ease;
}

.navbar__logo:hover .navbar__logo-img {
  opacity: 0.75;
}

.navbar.scrolled .navbar__logo-img {
  height: 28px;
}

/* ── Desktop nav ── */
.navbar__nav {
  display: none;
  flex: 1;
  justify-content: center;
}

@media (min-width: 768px) {
  .navbar__nav {
    display: flex;
    align-items: center;
    gap: 0.125rem;
  }
}

.navbar__nav a {
  padding: 0.4rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: 999px;
  white-space: nowrap;
  transition: color 200ms ease, background 200ms ease;
}

.navbar__nav a:hover {
  color: var(--color-text);
  background: rgba(0, 0, 0, 0.05);
}

.navbar__nav a.active {
  color: var(--color-accent-dark);
  background: rgba(0, 168, 107, 0.10);
}

/* ── CTA ── */
.navbar__cta {
  display: none;
  flex-shrink: 0;
  margin-left: auto;
}

@media (min-width: 768px) {
  .navbar__cta {
    display: block;
  }
}

.navbar__cta-btn {
  padding: 0.6rem 1.25rem !important;
  font-size: 0.8125rem !important;
  border-radius: 999px !important;
  gap: 0.4rem !important;
  letter-spacing: 0.005em;
  transition:
    background     200ms ease,
    transform      200ms ease,
    box-shadow     200ms ease !important;
}

.navbar__cta-btn:hover {
  transform: scale(1.04) !important;
  box-shadow: 0 0 20px rgba(0, 168, 107, 0.30) !important;
}

/* ── Hamburger ── */
.navbar__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0.5rem;
  flex-shrink: 0;
  margin-left: auto;
  cursor: pointer;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.04);
  transition: border-color 200ms ease, background 200ms ease;
}

@media (min-width: 768px) {
  .navbar__hamburger {
    display: none;
  }
}

.navbar__hamburger:hover {
  border-color: var(--color-accent-dark);
  background: rgba(0, 168, 107, 0.08);
}

.navbar__hamburger span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 2px;
  margin: 0 auto;
  transition:
    transform 300ms var(--ease-out-expo),
    opacity   300ms ease,
    background 200ms ease;
}

.navbar__hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
  background: var(--color-accent-dark);
}

.navbar__hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
  background: var(--color-accent-dark);
}

/* ── Mobile fullscreen menu (Athos Dark) ── */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 11, 14, 0.95);
  z-index: calc(var(--z-navbar) + 10);
  flex-direction: column;
  padding: 0;
  overflow: hidden;
}

.navbar__mobile-menu.open {
  display: flex;
}

/* Background blur layer */
.navbar__mobile-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% -20%, rgba(0, 168, 107, 0.15), transparent 70%);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  z-index: -1;
}

/* Internal header (matching original bar logo position) */
.navbar__mobile-header {
  height: 80px;
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar__mobile-links {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1rem;
  padding: 3rem 2rem;
}

.navbar__mobile-link-wrap {
  overflow: hidden;
}

.navbar__mobile-menu a {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 2.75rem;
  font-weight: 800;
  color: #FAFAF8;
  letter-spacing: -0.04em;
  line-height: 1.1;
  text-decoration: none;
  opacity: 0;
  transform: translateY(100%);
  transition: color 250ms ease;
}

.navbar__mobile-menu.open a {
  opacity: 1;
  transform: translateY(0);
  /* GSAP will handle the staggered animation, but this is a fallback */
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1), transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.navbar__mobile-menu a:hover,
.navbar__mobile-menu a.active {
  color: var(--color-accent);
}

/* Menu footer/CTA */
.navbar__mobile-footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(255, 255, 255, 0.02);
  opacity: 0;
  transform: translateY(20px);
  transition: all 600ms cubic-bezier(0.16, 1, 0.3, 1) 300ms;
}

.navbar__mobile-menu.open .navbar__mobile-footer {
  opacity: 1;
  transform: translateY(0);
}

.navbar__mobile-footer .btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  height: 60px;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border-radius: 100px;
  background: var(--color-accent);
  color: #ffffff;
  text-decoration: none;
  box-shadow: 0 8px 28px rgba(0, 168, 107, 0.35);
  transition: background 200ms ease, transform 200ms ease, box-shadow 200ms ease;
}

.navbar__mobile-footer .btn-primary:hover {
  background: #007844;
  transform: translateY(-1px);
  box-shadow: 0 12px 36px rgba(0, 168, 107, 0.45);
}

/* Adjust original hamburger for Z-index when open */
.navbar__hamburger.open {
  z-index: calc(var(--z-navbar) + 20);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.1);
}

@media (max-width: 480px) {
  .navbar__mobile-menu a {
    font-size: 2.25rem;
  }
}