/* ================================================================
   PÂTISSERIE PLAIN (patisserie-plain) — nav.css
   Floating Storybook Navigation Bar (Fluid Edge-to-Edge)
   ================================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: background var(--ease), box-shadow var(--ease), backdrop-filter var(--ease), border-color var(--ease);
}

.site-header.scrolled {
  background: rgba(253, 251, 247, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 24px rgba(61, 30, 22, 0.08);
  border-bottom: 1px solid var(--border-gold);
}

/* Fluid Container: Extends tabs and logo to the extreme left & right corners */
.site-header .container,
.site-header .nav-wrap {
  max-width: 100% !important;
  width: 100%;
  padding-inline: clamp(1.25rem, 3.5vw, 3.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  margin: 0;
}

/* Brand Emblem & Logotype */
.brand-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-ink);
  text-decoration: none;
  flex-shrink: 0;
  user-select: none;
}

.brand-emblem {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #FFFDF9 0%, #F3EBDD 100%);
  border: 1.5px solid var(--gold-accent);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 12px var(--gold-glow);
  color: var(--gold-accent);
  transition: transform var(--ease-spring), box-shadow var(--ease);
  flex-shrink: 0;
  padding: 5px;
}

.brand-emblem .cake-slice-svg {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform var(--ease-spring);
}

.brand-link:hover .brand-emblem {
  transform: rotate(-8deg) scale(1.08);
  box-shadow: 0 6px 18px rgba(194, 142, 0, 0.35);
}

.brand-link:hover .brand-emblem .cake-slice-svg {
  transform: scale(1.05);
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-ink);
}

.brand-tag {
  font-size: 0.68rem;
  font-style: italic;
  color: var(--text-subtle);
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 1px;
}

/* Main Navigation Area (Right corner) */
.main-nav {
  display: flex;
  align-items: center;
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-family: var(--font-serif);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  padding-block: 0.35rem;
  transition: color var(--ease);
  text-decoration: none;
  display: inline-block;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold-accent);
  transition: width var(--ease);
  border-radius: var(--radius-full);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-ink);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.65rem 1.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* Mobile Nav Toggle Button */
.mobile-nav-toggle {
  display: none;
  background: rgba(253, 251, 247, 0.85);
  border: 1.5px solid var(--border-gold);
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 0;
  color: var(--text-ink);
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(61, 30, 22, 0.08);
  transition: all var(--ease);
  position: relative;
  z-index: 1005;
}

.mobile-nav-toggle:hover,
.mobile-nav-toggle:focus-visible {
  background: var(--bg-cream-alt);
  border-color: var(--gold-accent);
  box-shadow: 0 4px 14px var(--gold-glow);
  outline: none;
}

/* Animated Hamburger Icon */
.hamburger-box {
  width: 20px;
  height: 15px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-ink);
  border-radius: 2px;
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1), opacity 200ms ease;
  transform-origin: center;
}

/* Open State for Animated Hamburger */
.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Dropdown Backdrop */
.mobile-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--nav-height);
  background: rgba(28, 25, 23, 0.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
  z-index: 998;
}

.mobile-backdrop.open {
  display: block;
  opacity: 1;
  pointer-events: all;
}

/* Mobile Dropdown Navigation */
@media (max-width: 860px) {
  .mobile-nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: calc(var(--nav-height) + 10px);
    left: 1rem;
    right: 1rem;
    background: rgba(253, 251, 247, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-gold);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(61, 30, 22, 0.18), 0 0 25px var(--gold-glow);
    flex-direction: column;
    padding: 1.5rem;
    gap: 0.85rem;
    transform: translateY(-20px) scale(0.96);
    opacity: 0;
    pointer-events: none;
    transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1), opacity 300ms ease;
    z-index: 999;
  }

  .nav-links.open {
    transform: translateY(0) scale(1);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links .nav-link {
    display: block;
    font-size: 1.15rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    transition: all var(--ease);
    border-bottom: 1px solid rgba(143, 126, 112, 0.12);
  }

  .nav-links .nav-link:hover,
  .nav-links .nav-link.active {
    background: var(--bg-parchment);
    color: var(--gold-accent);
  }

  .nav-links .nav-link::after {
    display: none;
  }

  .nav-links .nav-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.9rem;
    font-size: 1.05rem;
  }
}