/* =========================================
   Modern Navbar System (Mobile + Floating Island)
   ========================================= */

/* --- 1. Base Variables & Reset --- */
:root {
  --nav-height: 75px;
  --island-width: 1200px;
  --island-radius: 12px; /* Consistent with other UI elements (e.g. 8px-15px) */
  --accent-color: #d4a853;
  
  /* Liquid Glass Theme */
  --glass-bg: rgba(0, 0, 0, 0.4); /* User requested more transparency */
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-highlight: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --transition-speed: 0.4s;
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- 2. Floating Island Navbar (Desktop) --- */
.top-nav {
  position: fixed;
  top: 0;
  height: var(--nav-height);
  z-index: 2010;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 40px;
  
  /* Positioning Fix */
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 100%;
  
  /* Reset direct backgrounds */
  background: transparent !important; 
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  border: none;
  box-shadow: none;
  border-radius: 0px; 
  
  /* Layout Transitions - Smoother & Slower */
  transition: 
    top 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    width 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    max-width 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    padding 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    border-radius 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
  will-change: top, width, border-radius, transform;
}

/* Background Layer (Default Glass State) */
.top-nav::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  
  /* Enhanced Glass for Default State */
  background: rgba(0, 0, 0, 0.2); /* Slight tint always */
  background-image: linear-gradient(to bottom, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.1);

  opacity: 1;
  transition: opacity 0.5s ease;
  z-index: -2;
  pointer-events: none;
}




/* Glass Layer (For scrolled state) */
.top-nav::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: 
    var(--glass-shadow),
    inset 0 1px 0 var(--glass-highlight);
  opacity: 0;
  transition: opacity var(--transition-speed) var(--ease-smooth);
  z-index: -2;
  pointer-events: none;
}

/* Scrolled State (Floating Island) */
.top-nav.scrolled {
  top: 20px;
  width: 94% !important;
  max-width: var(--island-width);
  height: var(--nav-height); /* Unified height */
  padding: 0 30px;
  
  /* Correction for inline style conflicts */
  left: 50% !important;
  right: auto !important;
  transform: translateX(-50%) !important; 
  
  border-radius: var(--island-radius);
}

.top-nav.scrolled::before { opacity: 0; }
.top-nav.scrolled::after { opacity: 1; }

/* Base positioning override to fight inline styles */
.top-nav {
    left: 50% !important;
    transform: translateX(-50%) !important;
    right: auto !important; /* Prevent stretching */
}

/* --- Added Button Integration --- */
.nav-btn {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 4px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  margin-left: 10px;
}
.nav-btn:hover {
  background: #fff;
  color: #000; 
  border-color: #fff;
}
.nav-btn-outline {
  border-color: var(--accent-color);
  color: var(--accent-color);
}
.nav-btn-outline:hover {
  background: var(--accent-color);
  color: #000;
  border-color: var(--accent-color);
}

/* Adjust Nav Items for Island Mode */
.nav-logo, .nav-menu, .nav-right {
  position: relative;
  z-index: 2;
}

.nav-logo {
  font-family: 'Oswald', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* --- 3. Hamburger Menu Animation (Morph to X) --- */
.mobile-menu-btn {
  display: none;
  position: relative;
  width: 30px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2002;
  padding: 0;
}

.mobile-menu-btn .bar {
  display: block;
  position: absolute;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  opacity: 1;
  left: 0;
  transform: rotate(0deg);
  transition: .25s ease-in-out;
  transform-origin: center;
}

.mobile-menu-btn .bar:nth-child(1) { top: 0px; }
.mobile-menu-btn .bar:nth-child(2) { top: 9px; }
.mobile-menu-btn .bar:nth-child(3) { top: 18px; }

/* Morph Animation */
.mobile-menu-btn.is-open .bar:nth-child(1) {
  top: 9px;
  transform: rotate(45deg);
  background: var(--accent-color);
}

.mobile-menu-btn.is-open .bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0); /* Clean disappearance */
}

.mobile-menu-btn.is-open .bar:nth-child(3) {
  top: 9px;
  transform: rotate(-45deg);
  background: var(--accent-color);
}

/* --- Desktop Nav Items & Layout --- */
.nav-menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1 1 auto;
  min-width: 0;
  flex-wrap: nowrap;
}

.nav-item {
  position: relative;
  padding: 9px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.4px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-item:hover {
  color: #fff;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width 0.3s ease;
}

.nav-item:hover::after {
  width: 60%;
}

.nav-logo img {
  width: 32px; 
  height: 32px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.user-welcome {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
}
.user-welcome strong {
  color: var(--accent-color);
}


/* --- 4. Mobile Navigation Drawer (Slide Left to Right) --- */
@media (max-width: 1024px) {
  .top-nav {
    width: 100% !important;
    max-width: 100% !important;
    top: 0 !important;
    left: 0 !important;
    transform: none !important;
    border-radius: 0 !important;
    padding: 0 20px !important;
    background: transparent !important;
    will-change: auto !important;
    overflow: visible !important;
    z-index: 2000 !important; /* Above overlay (1500) */
  }
  
  .top-nav::before {
    display: none !important;
  }

  .top-nav.scrolled::after {
    background: rgba(10, 10, 10, 0.6) !important; 
    backdrop-filter: none !important; /* Remove blur from mobile navbar */
    -webkit-backdrop-filter: none !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    opacity: 1 !important;
  }
  
  .top-nav.scrolled {
    height: var(--nav-height); 
    border-radius: 0 !important;
    width: 100% !important;
    top: 0 !important;
    border: none !important;
    left: 0 !important;
    right: 0 !important;
    transform: none !important; 
  }

  /* ===== MOBILE MENU DRAWER ===== */
  .nav-menu {
    display: block !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 280px !important;
    max-width: 85vw !important;
    height: 100vh !important;
    height: 100dvh !important; /* Dynamic viewport height for mobile */
    background: #0a0a0a !important;
    padding: 100px 25px 40px 25px !important;
    margin: 0 !important;
    
    transform: translateX(-100%) !important;
    transition: transform 0.3s ease !important;
    
    z-index: 9999 !important; /* Above overlay (1500) */
    box-shadow: none !important;
    border-right: 1px solid rgba(255,255,255,0.1) !important;
    
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    
    overflow-y: auto !important;
    overflow-x: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    overscroll-behavior: contain !important;
  }

  .nav-menu.is-open {
    transform: translateX(0) !important;
    box-shadow: 5px 0 30px rgba(0,0,0,0.5) !important;
  }
  
  /* ===== MENU ITEMS ===== */
  .nav-menu .nav-item,
  .nav-item {
    display: block !important;
    width: 100% !important;
    padding: 16px 10px !important;
    margin: 0 !important;
    
    font-size: 15px !important;
    font-weight: 500 !important;
    line-height: 1.5 !important;
    
    color: #fff !important;
    background: transparent !important;
    border: none !important;
    border-bottom: 1px solid rgba(255,255,255,0.08) !important;
    
    text-decoration: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    
    position: relative !important;
    z-index: auto !important;
    
    -webkit-tap-highlight-color: rgba(212, 168, 83, 0.2) !important;
    touch-action: manipulation !important;
  }
  
  .nav-item::after {
    display: none !important;
  }

  .nav-item:hover,
  .nav-item:active {
    color: var(--accent-color) !important;
    background: rgba(255,255,255,0.03) !important;
    padding-left: 8px !important;
  }
  
  /* Icons */
  .nav-item i,
  .nav-item .fa,
  .nav-item .fas,
  .nav-item .far,
  .nav-item .fab {
    display: inline-block !important;
    opacity: 1 !important;
    visibility: visible !important;
    color: var(--accent-color) !important;
    margin-right: 12px !important;
    width: 20px !important;
    text-align: center !important;
  }
  
  /* Extra items container from JS */
  .mobile-extra-items {
    display: block !important;
    width: 100% !important;
    margin-top: 25px !important;
    padding-top: 15px !important;
    border-top: 1px solid rgba(255,255,255,0.12) !important;
    opacity: 1 !important;
    visibility: visible !important;
  }
  
  .mobile-extra-items > * {
    display: block !important;
    color: #fff !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  /* Overlay - MUST be BELOW the menu drawer */
  .nav-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0,0,0,0.6) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    z-index: 1500 !important; /* Below menu (9999) but above navbar (1000) */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease !important;
  }

  .nav-overlay.is-active {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
  }

  /* Hamburger Button */
  .mobile-menu-btn {
    display: flex !important;
    z-index: 10000 !important; /* Above menu (9999) */
    position: relative !important;
  }

  .nav-right {
    display: none !important;
  }
  
  /* Prevent body scroll when menu is open */
  body.menu-open {
    overflow: hidden !important;
    position: fixed !important;
    width: 100% !important;
    height: 100vh !important;
    left: 0 !important;
    top: 0 !important;
  }
  
  /* Ensure menu items are clickable */
  .nav-menu.is-open .nav-item {
    pointer-events: auto !important;
    cursor: pointer !important;
  }
}