/* ═══════════════════════════════════════════════════════
   NAVBAR (Minimalist Light Theme)
   ═══════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1060;
  transition: all var(--transition-base);
  background: transparent;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: var(--surface-glass);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05); /* Very subtle line */
}

.navbar.menu-open {
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border-bottom-color: transparent !important;
}

/* ── Navbar Layout ── */
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  z-index: 1001;
}

.nav-logo img {
  height: 24px;
  width: auto;
  display: block;
}

.navbar.scrolled .nav-logo img {
  filter: brightness(0);
}

/* ── Central Navigation Links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-white);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.nav-links a:hover {
  opacity: 0.8;
}

.navbar.scrolled .nav-links a {
  color: var(--color-gray-800);
}

/* ── Right Actions ── */
.nav-actions {
  display: flex;
  align-items: center;
}

.btn-login {
  font-size: 14px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  border: 1px solid var(--color-primary);
  color: var(--color-white);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-login:hover {
  filter: brightness(1.1);
  color: var(--color-white);
}

.navbar.scrolled .btn-login {
  color: var(--color-white);
}

/* ── Mobile Menu Toggle ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  z-index: 1051;
  padding: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), background var(--transition-fast), opacity var(--transition-base);
  transform-origin: center;
}

.navbar.scrolled .nav-toggle span {
  background: #000 !important;
}

.navbar.menu-open .nav-toggle span {
  background: #000 !important; /* Dark cross on white background */
}

.navbar.menu-open .nav-logo {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

/* ── Mobile Menu Overlay (Apple Style) ── */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: #fbfbfd;
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  /* Base state (closing): wait 0.1s before fading overlay out */
  transition: opacity 0.4s ease-in-out 0.1s;
  display: flex;
  flex-direction: column;
  padding-top: calc(var(--nav-height) + 20px);
}

.mobile-menu-overlay.open {
  opacity: 1;
  pointer-events: all;
  /* Open state: overlay fades in immediately */
  transition: opacity 0.4s ease-in-out 0s;
}

.mobile-menu-container {
  padding: 0 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-menu-container a {
  font-family: var(--font-body);
  font-size: 26px;
  font-weight: 600;
  color: #1d1d1f;
  text-decoration: none;
  /* Base state (closing) */
  opacity: 0;
  transform: translateY(12px);
  /* Uses same duration as opening but ease-in, with reverse delays */
  transition: opacity 0.4s ease-in, transform 0.4s ease-in, color 0.2s;
}

/* Base delays (closing): Bottom item starts first, top item last */
.mobile-menu-container a:nth-child(1) { transition-delay: 0.20s; }
.mobile-menu-container a:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu-container a:nth-child(3) { transition-delay: 0.10s; }
.mobile-menu-container a:nth-child(4) { transition-delay: 0.05s; }
.mobile-menu-container a:nth-child(5) { transition-delay: 0s; }

/* Open state */
.mobile-menu-overlay.open .mobile-menu-container a {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s cubic-bezier(0.2, 0, 0, 1), transform 0.6s cubic-bezier(0.2, 0, 0, 1), color 0.2s;
}

/* Open delays: Top item starts first, bottom item last */
.mobile-menu-overlay.open .mobile-menu-container a:nth-child(1) { transition-delay: 0.05s; }
.mobile-menu-overlay.open .mobile-menu-container a:nth-child(2) { transition-delay: 0.1s; }
.mobile-menu-overlay.open .mobile-menu-container a:nth-child(3) { transition-delay: 0.15s; }
.mobile-menu-overlay.open .mobile-menu-container a:nth-child(4) { transition-delay: 0.2s; }
.mobile-menu-overlay.open .mobile-menu-container a:nth-child(5) { transition-delay: 0.25s; }

.mobile-menu-container a:hover {
  color: var(--color-primary);
}

.btn-login-mobile {
  color: var(--color-primary) !important;
}

/* ── Responsive adjustments ── */
@media (max-width: 1024px) {
  .nav-links {
    gap: var(--space-4);
  }
  .nav-links a {
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
}