/* ================================
   PROFESSIONAL PREMIUM NAVBAR
   Modern Design System
   ================================ */

:root {
  --nav-bg: rgba(255, 255, 255, 0.92);
  --nav-bg-scrolled: rgba(255, 255, 255, 0.98);
  --nav-text: #1a1a1a;
  --nav-text-light: #555;
  --nav-hover: #e63946;
  --nav-primary: #1d3557;
  --nav-accent: #e63946;
  --nav-gradient-1: #e63946;
  --nav-gradient-2: #c42532;
  --nav-gradient-3: #1d3557;
  --nav-pill: rgba(230, 57, 70, 0.08);
  --nav-pill-hover: rgba(230, 57, 70, 0.15);
  --dropdown-bg: rgba(255, 255, 255, 0.99);
  --dropdown-shadow: 0 20px 60px -12px rgba(0, 0, 0, 0.25);
  --radius: 12px;
  --radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --focus-ring: 0 0 0 3px rgba(230, 57, 70, 0.25);
  --nav-height: 95px;
  --nav-height-scrolled: 72px;
}

#site-navbar, #site-navbar * {
  box-sizing: border-box;
}

/* ===== BASE NAVBAR - Enhanced ===== */
#site-navbar.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1200;
  width: 100%;
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  transition: var(--transition);
  font-family: 'Urbanist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  will-change: transform, background, box-shadow;
}

/* Subtle background pattern */
#site-navbar.navbar::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(230, 57, 70, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(29, 53, 87, 0.03) 0%, transparent 50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

#site-navbar.scrolled::before {
  opacity: 1;
}

#site-navbar.scrolled {
  background: var(--nav-bg-scrolled);
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.08), 
    0 4px 12px rgba(0, 0, 0, 0.04),
    0 0 0 1px rgba(230, 57, 70, 0.06);
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

/* Subtle pulse effect on scrolled navbar */
#site-navbar.scrolled::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, 
    rgba(230, 57, 70, 0.02) 0%,
    transparent 50%);
  pointer-events: none;
  opacity: 0;
  animation: subtlePulse 4s ease-in-out infinite;
}

@keyframes subtlePulse {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}

/* Enhanced top border accent */
#site-navbar.navbar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent 0%,
    var(--nav-gradient-1) 20%,
    var(--nav-gradient-2) 50%,
    var(--nav-gradient-1) 80%,
    transparent 100%);
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 0.4s ease;
  animation: gradientFlow 4s ease infinite;
  box-shadow: 0 2px 8px rgba(230, 57, 70, 0.35);
}

#site-navbar.scrolled::after {
  opacity: 0.8;
}

@keyframes gradientFlow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ===== CONTAINER ===== */
#site-navbar .container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  height: var(--nav-height);
  transition: height 0.3s ease;
}

#site-navbar.scrolled .container {
  height: var(--nav-height-scrolled);
}

/* ===== LOGO SECTION - Enhanced ===== */
#site-navbar .logo {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  height: 100%;
  max-height: 100%;
}

/* Subtle hover effect on logo */
#site-navbar .logo::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 8px;
  background: linear-gradient(135deg, 
    rgba(230, 57, 70, 0.06),
    rgba(29, 53, 87, 0.05));
  opacity: 0;
  filter: blur(8px);
  transition: opacity 0.3s ease;
  z-index: -1;
}

#site-navbar .logo:hover::before {
  opacity: 1;
}

#site-navbar .logo a {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
  transition: var(--transition);
  padding: 0;
  position: relative;
  overflow: visible;
  background: transparent;
  border: none;
  max-height: 100%;
  height: 100%;
}

#site-navbar.scrolled .logo a {
  padding: 0;
}

#site-navbar .logo a:hover {
  transform: none;
  background: transparent;
  border: none;
  box-shadow: none;
  opacity: 0.85;
}

#site-navbar .logo a img {
  height: 70px;
  max-height: calc(var(--nav-height) - 20px);
  width: auto;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.08));
  transition: var(--transition);
  position: relative;
  z-index: 1;
}

#site-navbar.scrolled .logo a img {
  height: 58px;
  max-height: calc(var(--nav-height-scrolled) - 16px);
}

#site-navbar .logo a:hover img {
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
  transform: scale(1.01);
}

/* Logo Text - Enhanced */
.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  background: linear-gradient(135deg, var(--nav-text) 0%, var(--nav-primary) 50%, var(--nav-text) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  transition: var(--transition);
  display: none;
  position: relative;
  animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@media (min-width: 1200px) {
  .logo-text {
    display: block;
  }
}

#site-navbar .logo a:hover .logo-text {
  background: linear-gradient(135deg, var(--nav-gradient-1) 0%, var(--nav-gradient-2) 50%, var(--nav-gradient-1) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 2s ease infinite;
}

/* ===== NAVIGATION ===== */
#site-navbar nav {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: flex-end;
}

#site-navbar .nav-list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

#site-navbar .nav-list li {
  margin: 0;
}

/* ===== NAV LINKS - Premium Enhanced Styling ===== */
#site-navbar .nav-list a,
#site-navbar .dropdown-toggle {
  all: unset;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.4;
  color: var(--nav-text);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  position: relative;
  transition: var(--transition);
  white-space: nowrap;
  overflow: visible;
  will-change: transform, color;
}

/* Number indicator for nav items (optional) */
#site-navbar .nav-list a::marker {
  content: '';
}

/* Premium hover background with gradient */
#site-navbar .nav-list a::before,
#site-navbar .dropdown-toggle::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, 
    rgba(230, 57, 70, 0.1) 0%,
    rgba(29, 53, 87, 0.06) 50%,
    rgba(230, 57, 70, 0.1) 100%);
  background-size: 200% 100%;
  opacity: 0;
  transform: scale(0.95);
  transition: var(--transition);
  z-index: -1;
}

#site-navbar .nav-list a:hover::before,
#site-navbar .nav-list a:focus-visible::before,
#site-navbar .dropdown-toggle:hover::before {
  opacity: 1;
  transform: scale(1);
  background: linear-gradient(135deg, 
    rgba(230, 57, 70, 0.16) 0%,
    rgba(29, 53, 87, 0.1) 50%,
    rgba(230, 57, 70, 0.16) 100%);
  background-size: 200% 100%;
  animation: gradientShift 3s ease infinite;
  box-shadow: 
    0 0 20px rgba(230, 57, 70, 0.12),
    inset 0 0 20px rgba(255, 255, 255, 0.5);
}

/* Animated underline with glow */
#site-navbar .nav-list a::after {
  content: '';
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 0.5rem;
  height: 2.5px;
  background: linear-gradient(90deg, 
    var(--nav-gradient-1) 0%,
    var(--nav-gradient-2) 50%,
    var(--nav-gradient-1) 100%);
  background-size: 200% 100%;
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  box-shadow: 0 0 8px rgba(230, 57, 70, 0.4);
}

#site-navbar .nav-list a:hover::after {
  transform: scaleX(1);
  opacity: 1;
  animation: gradientShift 2s ease infinite;
}

#site-navbar .nav-list a:hover,
#site-navbar .dropdown-toggle:hover {
  color: var(--nav-hover);
  transform: translateY(-2px);
  text-shadow: 0 0 20px rgba(230, 57, 70, 0.15);
}

/* Active state with enhanced styling */
#site-navbar .nav-list a.active {
  color: var(--nav-hover);
  font-weight: 700;
}

#site-navbar .nav-list a.active::before {
  opacity: 1;
  transform: scale(1);
  background: linear-gradient(135deg, 
    rgba(230, 57, 70, 0.16) 0%,
    rgba(29, 53, 87, 0.1) 100%);
}

#site-navbar .nav-list a.active::after {
  transform: scaleX(1);
  opacity: 1;
}

/* ===== DROPDOWN ===== */
#site-navbar .dropdown {
  position: relative;
}

#site-navbar .arrow {
  font-size: 0.625rem;
  transition: transform 0.2s ease;
  margin-left: 0.25rem;
  color: var(--nav-text-light);
}

#site-navbar .dropdown-toggle[aria-expanded="true"] .arrow {
  transform: rotate(180deg);
  color: var(--nav-hover);
}

#site-navbar .dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  background: var(--dropdown-bg);
  backdrop-filter: blur(24px) saturate(180%);
  border-radius: var(--radius-lg);
  box-shadow: 
    var(--dropdown-shadow),
    0 0 0 1px rgba(255, 255, 255, 0.8) inset,
    0 0 40px rgba(230, 57, 70, 0.08);
  min-width: 240px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0.75rem;
  gap: 0.375rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px) scale(0.96);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

#site-navbar .dropdown-menu::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, 
    transparent,
    var(--nav-gradient-1),
    var(--nav-gradient-2),
    var(--nav-gradient-1),
    transparent);
  background-size: 200% 100%;
  opacity: 0.8;
  animation: gradientFlow 3s ease infinite;
  box-shadow: 0 2px 8px rgba(230, 57, 70, 0.35);
}

#site-navbar .dropdown-menu.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

#site-navbar .dropdown-menu li {
  list-style: none;
}

#site-navbar .dropdown-menu li a {
  all: unset;
  display: flex;
  align-items: center;
  padding: 0.875rem 1.125rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  color: var(--nav-text);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
  position: relative;
  overflow: hidden;
  gap: 0.75rem;
}

/* Icon indicator */
#site-navbar .dropdown-menu li a::marker {
  content: '→';
  color: var(--nav-hover);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateX(-10px);
}

#site-navbar .dropdown-menu li a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--nav-gradient-1), var(--nav-gradient-2));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}

#site-navbar .dropdown-menu li a:hover {
  background: linear-gradient(135deg, 
    rgba(230, 57, 70, 0.12) 0%,
    rgba(29, 53, 87, 0.08) 100%);
  color: var(--nav-hover);
  transform: translateX(6px);
  padding-left: 1.5rem;
  box-shadow: 
    0 2px 8px rgba(230, 57, 70, 0.1),
    inset 0 0 20px rgba(255, 255, 255, 0.6);
}

#site-navbar .dropdown-menu li a:hover::before {
  transform: scaleY(1);
}

#site-navbar .dropdown-menu li a:hover::marker {
  opacity: 1;
  transform: translateX(0);
}

/* ===== HAMBURGER MENU ===== */
#site-navbar .menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid transparent;
  padding: 0.625rem;
  margin: 0;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  border-radius: var(--radius);
  transition: var(--transition-fast);
  flex-shrink: 0;
}

#site-navbar .menu-toggle:hover {
  background: var(--nav-pill);
  border-color: rgba(230, 57, 70, 0.25);
}

#site-navbar .menu-toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

#site-navbar .menu-toggle .bar {
  width: 24px;
  height: 2.5px;
  background: var(--nav-text);
  border-radius: 2px;
  transition: var(--transition-fast);
}

#site-navbar .menu-toggle:hover .bar {
  background: var(--nav-hover);
}

#site-navbar .menu-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
  background: var(--nav-hover);
}

#site-navbar .menu-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
  transform: scale(0);
}

#site-navbar .menu-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
  background: var(--nav-hover);
}

/* ===== MOBILE STYLES ===== */
@media (max-width: 980px) {
  #site-navbar .menu-toggle {
    display: flex;
  }

  #site-navbar nav {
    position: relative;
  }

  #site-navbar .logo a {
    padding: 0;
  }

  #site-navbar.scrolled .logo a {
    padding: 0;
  }

  #site-navbar .logo a img {
    height: 60px;
    max-height: calc(var(--nav-height) - 24px);
  }

  #site-navbar.scrolled .logo a img {
    height: 52px;
    max-height: calc(var(--nav-height-scrolled) - 20px);
  }

  #site-navbar .container {
    gap: 1.5rem;
    padding: 0 1.5rem;
  }

  #site-navbar .nav-list {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 6rem 1.5rem 2rem;
    gap: 0.5rem;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1100;
    border-right: 2px solid;
    border-image: linear-gradient(180deg, 
      var(--nav-gradient-1),
      var(--nav-gradient-2),
      var(--nav-gradient-1)) 1;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
  }
  
  #site-navbar .nav-list::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, 
      var(--nav-gradient-1),
      var(--nav-gradient-2),
      var(--nav-gradient-1));
    background-size: 200% 100%;
    animation: gradientFlow 3s ease infinite;
  }

  #site-navbar .nav-list.active {
    transform: translateX(0);
  }

  #site-navbar .nav-list li {
    width: 100%;
    opacity: 0;
    animation: fadeInSlide 0.4s ease forwards;
  }

  #site-navbar .nav-list.active li:nth-child(1) { animation-delay: 0.05s; }
  #site-navbar .nav-list.active li:nth-child(2) { animation-delay: 0.1s; }
  #site-navbar .nav-list.active li:nth-child(3) { animation-delay: 0.15s; }
  #site-navbar .nav-list.active li:nth-child(4) { animation-delay: 0.2s; }
  #site-navbar .nav-list.active li:nth-child(5) { animation-delay: 0.25s; }
  #site-navbar .nav-list.active li:nth-child(6) { animation-delay: 0.3s; }
  #site-navbar .nav-list.active li:nth-child(7) { animation-delay: 0.35s; }

  #site-navbar .nav-list a,
  #site-navbar .dropdown-toggle {
    font-size: 1.0625rem;
    padding: 1rem 1.25rem;
    width: 100%;
    justify-content: flex-start;
    border-radius: var(--radius);
  }

  #site-navbar .dropdown-menu {
    position: static;
    min-width: 100%;
    background: transparent;
    box-shadow: none;
    border: none;
    border-radius: var(--radius);
    padding: 0.5rem 0 0 1rem;
    margin-top: 0.25rem;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    display: none;
  }

  #site-navbar .dropdown-menu::before {
    display: none;
  }

  #site-navbar .dropdown-menu.open {
    display: flex;
  }

  #site-navbar .dropdown-menu li a {
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===== FOCUS STATES - Enhanced ===== */
#site-navbar .nav-list a:focus-visible,
#site-navbar .dropdown-toggle:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius);
}

/* Premium ripple effect on click */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.6;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

#site-navbar .nav-list a:active,
#site-navbar .dropdown-toggle:active {
  transform: translateY(0);
}

/* Notification badge style (for future use) */
.nav-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: linear-gradient(135deg, var(--nav-gradient-1), var(--nav-gradient-2));
  color: white;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 0.125rem 0.375rem;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(230, 57, 70, 0.4);
  animation: pulseBadge 2s ease-in-out infinite;
}

@keyframes pulseBadge {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 2px 8px rgba(230, 57, 70, 0.4);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.6);
  }
}

/* ===== AUTH PAGES ===== */
body[class*="auth-page"] #site-navbar,
.page-register #site-navbar,
.page-login #site-navbar {
  background: var(--nav-bg-scrolled);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

body[class*="auth-page"] #site-navbar .container,
.page-register #site-navbar .container,
.page-login #site-navbar .container {
  height: var(--nav-height-scrolled);
}

body[class*="auth-page"] #site-navbar .logo a img,
.page-register #site-navbar .logo a img,
.page-login #site-navbar .logo a img {
  height: 58px;
}

/* ===== BODY PADDING ===== */
body {
  padding-top: var(--nav-height);
}

@media (max-width: 980px) {
  body {
    padding-top: calc(var(--nav-height) - 23px);
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* ===== EXTRA SMALL ===== */
@media (max-width: 480px) {
  #site-navbar .logo a {
    padding: 0.45rem 0.65rem;
    gap: 0.75rem;
  }

  #site-navbar.scrolled .logo a {
    padding: 0.3rem 0.55rem;
  }

  #site-navbar .logo a img {
    height: 54px;
    max-height: calc(var(--nav-height) - 26px);
  }

  #site-navbar.scrolled .logo a img {
    height: 48px;
    max-height: calc(var(--nav-height-scrolled) - 22px);
  }

  #site-navbar .container {
    padding: 0 1rem;
    gap: 1rem;
  }
}

/* ===== RESPONSIVE LOGO TEXT ===== */
@media (max-width: 1400px) {
  .logo-text {
    font-size: 1.2rem;
  }
}

@media (max-width: 1200px) {
  .logo-text {
    display: none;
  }
  
  #site-navbar .logo a {
    gap: 0;
  }
}