/* Modern Navbar - Fully Responsive & Exclusive Design */
/* =================================================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

/* CSS Custom Properties for Advanced Navbar */
:root {
  /* 🌞 Light Mode Color Palette */
  --navbar-bg: #F5F5F7;
  --navbar-bg-scrolled: #FFFFFF;
  --navbar-border: rgba(85, 26, 139, 0.15);
  --navbar-border-scrolled: rgba(85, 26, 139, 0.2);
  --navbar-text: #1A1A1A;
  --navbar-text-hover: #551A8B;
  --navbar-text-muted: #4A4A4A;
  --navbar-primary: #551A8B;
  --navbar-primary-hover: #6C2BA3;
  --navbar-secondary: #FFB400;
  --navbar-accent: #FFB400;
  --navbar-light: #FFFFFF;
  --navbar-card-bg: #FAFAFA;
  --navbar-shadow: 0 4px 20px rgba(85, 26, 139, 0.12);
  --navbar-shadow-lg: 0 8px 32px rgba(85, 26, 139, 0.18);
  --navbar-shadow-xl: 0 16px 48px rgba(85, 26, 139, 0.25);

  /* Typography */
  --navbar-font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --navbar-height: 70px;
  --navbar-padding: 1rem 1.5rem;
  --navbar-gap: 2rem;
  
  /* Advanced Transitions */
  --navbar-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --navbar-fast-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --navbar-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Border Radius */
  --navbar-radius: 0.75rem;
  --navbar-radius-full: 9999px;
  
  /* Z-Index */
  --navbar-z-index: 1000;
  --navbar-mobile-z: 1050;
}

/* Reset for navbar elements */
.modern-navbar *,
.modern-navbar *::before,
.modern-navbar *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Main Navbar Container */
.modern-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--navbar-z-index);
  background: var(--navbar-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--navbar-border);
  transition: var(--navbar-transition);
  font-family: var(--navbar-font);
  box-shadow: var(--navbar-shadow);
}

/* Scrolled state */
.modern-navbar.scrolled {
  background: var(--navbar-bg-scrolled);
  box-shadow: var(--navbar-shadow-lg);
  border-bottom: 1px solid var(--navbar-border-scrolled);
}

/* 🌙 Dark Mode Color Overrides */
.dark {
  --navbar-bg: #1A1A1A;
  --navbar-bg-scrolled: #0F0F0F;
  --navbar-border: rgba(169, 112, 255, 0.25);
  --navbar-border-scrolled: rgba(169, 112, 255, 0.3);
  --navbar-text: #FFFFFF;
  --navbar-text-hover: #A970FF;
  --navbar-text-muted: #CCCCCC;
  --navbar-primary: #A970FF;
  --navbar-primary-hover: #C89CFF;
  --navbar-secondary: #FFB400;
  --navbar-accent: #C89CFF;
  --navbar-light: #2A2A2A;
  --navbar-card-bg: #2A2A2A;
  --navbar-shadow: 0 4px 20px rgba(169, 112, 255, 0.25);
  --navbar-shadow-lg: 0 8px 32px rgba(169, 112, 255, 0.35);
  --navbar-shadow-xl: 0 16px 48px rgba(169, 112, 255, 0.45);
}

/* Dark mode navbar */
.modern-navbar.dark {
  background: var(--navbar-bg);
  border-bottom: 1px solid var(--navbar-border);
}

.modern-navbar.dark.scrolled {
  background: var(--navbar-bg-scrolled);
  border-bottom: 1px solid var(--navbar-border-scrolled);
}

/* Navbar Inner Container */
.navbar-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--navbar-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
}

/* Brand/Logo Section */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  transition: var(--navbar-fast-transition);
  z-index: calc(var(--navbar-z-index) + 2);
}

.navbar-brand:hover {
  transform: translateY(-1px);
}

.navbar-logo {
  width: 45px;
  height: 45px;
  border-radius: var(--navbar-radius);
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(85, 26, 139, 0.25);
  transition: var(--navbar-transition);
}

.navbar-logo:hover {
  box-shadow: 0 8px 20px rgba(85, 26, 139, 0.4);
  transform: scale(1.05);
}

.dark .navbar-logo {
  box-shadow: 0 4px 12px rgba(169, 112, 255, 0.3);
}

.dark .navbar-logo:hover {
  box-shadow: 0 8px 20px rgba(169, 112, 255, 0.5);
}

.navbar-brand-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--navbar-primary), var(--navbar-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.025em;
  transition: var(--navbar-transition);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.dark .navbar-brand-text {
  background: linear-gradient(135deg, var(--navbar-primary), var(--navbar-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 2px 8px rgba(169, 112, 255, 0.3);
}

/* Desktop Navigation Menu */
.navbar-menu {
  display: none;
  align-items: center;
  gap: var(--navbar-gap);
  list-style: none;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--navbar-text);
  text-decoration: none;
  border-radius: var(--navbar-radius);
  transition: var(--navbar-transition);
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid transparent;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--navbar-text-hover);
  background: linear-gradient(135deg, rgba(85, 26, 139, 0.1), rgba(255, 180, 0, 0.1));
  border-color: rgba(85, 26, 139, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(85, 26, 139, 0.15);
}

.dark .navbar-link {
  background: rgba(169, 112, 255, 0.05);
}

.dark .navbar-link:hover,
.dark .navbar-link.active {
  color: var(--navbar-text-hover);
  background: linear-gradient(135deg, rgba(169, 112, 255, 0.15), rgba(255, 180, 0, 0.1));
  border-color: rgba(169, 112, 255, 0.3);
  box-shadow: 0 4px 12px rgba(169, 112, 255, 0.25);
}

/* Active Link Indicator */
.navbar-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--gradient-secondary);
  border-radius: 2px;
  box-shadow: 0 2px 8px rgba(255, 180, 0, 0.4);
}

.dark .navbar-link.active::after {
  background: var(--gradient-secondary);
  box-shadow: 0 2px 8px rgba(169, 112, 255, 0.5);
}

/* Navigation Icons */
.navbar-link svg {
  width: 18px;
  height: 18px;
  opacity: 0.8;
  transition: var(--navbar-fast-transition);
}

.navbar-link:hover svg,
.navbar-link.active svg {
  opacity: 1;
  transform: scale(1.1);
}

/* CTA Button */
.navbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
  text-decoration: none;
  background: linear-gradient(135deg, var(--navbar-primary), var(--navbar-secondary));
  border: none;
  border-radius: var(--navbar-radius);
  transition: var(--navbar-transition);
  box-shadow: 0 4px 12px rgba(85, 26, 139, 0.25);
  position: relative;
  overflow: hidden;
}

.navbar-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.navbar-cta:hover::before {
  left: 100%;
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(85, 26, 139, 0.35);
  background: linear-gradient(135deg, var(--navbar-primary-hover), var(--navbar-secondary));
}

.dark .navbar-cta {
  box-shadow: 0 4px 12px rgba(169, 112, 255, 0.3);
}

.dark .navbar-cta:hover {
  box-shadow: 0 8px 20px rgba(169, 112, 255, 0.45);
  background: linear-gradient(135deg, var(--navbar-primary-hover), var(--navbar-secondary));
}

/* Mobile Toggle Button */
.navbar-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--navbar-transition);
  border-radius: var(--navbar-radius);
}

.navbar-toggle:hover {
  background: rgba(85, 26, 139, 0.1);
}

.dark .navbar-toggle:hover {
  background: rgba(169, 112, 255, 0.15);
}

.navbar-toggle-line {
  width: 24px;
  height: 2px;
  background: var(--navbar-text);
  border-radius: 1px;
  transition: var(--navbar-transition);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.dark .navbar-toggle-line {
  background: var(--navbar-text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Mobile Menu */
.navbar-mobile {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(400px, 85vw);
  height: 100vh;
  background: #FFFFFF;
  border-left: 1px solid var(--navbar-border);
  box-shadow: var(--navbar-shadow-xl);
  transition: right var(--navbar-transition);
  z-index: var(--navbar-mobile-z);
  overflow-y: auto;
}

.navbar-mobile.active {
  right: 0;
}

.dark .navbar-mobile {
  background: #000000;
  border-left: 1px solid var(--navbar-border);
}

/* Mobile Overlay */
.navbar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--navbar-transition);
  z-index: calc(var(--navbar-mobile-z) - 1);
}

.navbar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Mobile Header */
.navbar-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid var(--navbar-border);
}

.navbar-mobile-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navbar-text);
  background: linear-gradient(135deg, var(--navbar-primary), var(--navbar-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-mobile-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--navbar-card-bg);
  border: 1px solid var(--navbar-border);
  border-radius: var(--navbar-radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--navbar-transition);
  box-shadow: var(--navbar-shadow);
}

.navbar-mobile-close:hover {
  background: var(--navbar-primary);
  border-color: var(--navbar-primary);
  transform: scale(1.05);
  box-shadow: var(--navbar-shadow-lg);
}

.navbar-mobile-close svg {
  width: 18px;
  height: 18px;
  color: var(--navbar-text);
  transition: var(--navbar-transition);
}

.navbar-mobile-close:hover svg {
  color: white;
  transform: rotate(90deg);
}

/* Mobile Menu Items */
.navbar-mobile-menu {
  list-style: none;
  margin-bottom: 2rem;
}

.navbar-mobile-item {
  margin-bottom: 0.5rem;
}

.navbar-mobile-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--navbar-text);
  text-decoration: none;
  border-radius: var(--navbar-radius);
  transition: var(--navbar-transition);
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid transparent;
}

.navbar-mobile-link:hover,
.navbar-mobile-link.active {
  background: linear-gradient(135deg, rgba(85, 26, 139, 0.1), rgba(255, 180, 0, 0.1));
  color: var(--navbar-text-hover);
  transform: translateX(8px);
  border-color: rgba(85, 26, 139, 0.2);
  box-shadow: 0 4px 12px rgba(85, 26, 139, 0.15);
}

.dark .navbar-mobile-link {
  background: rgba(169, 112, 255, 0.05);
}

.dark .navbar-mobile-link:hover,
.dark .navbar-mobile-link.active {
  background: linear-gradient(135deg, rgba(169, 112, 255, 0.15), rgba(255, 180, 0, 0.1));
  color: var(--navbar-text-hover);
  border-color: rgba(169, 112, 255, 0.3);
  box-shadow: 0 4px 12px rgba(169, 112, 255, 0.25);
}

/* Mobile Menu Icons */
.navbar-mobile-link svg {
  width: 20px;
  height: 20px;
  opacity: 0.8;
  transition: var(--navbar-fast-transition);
}

.navbar-mobile-link:hover svg,
.navbar-mobile-link.active svg {
  opacity: 1;
  transform: scale(1.1);
}

/* Mobile CTA */
.navbar-mobile-cta {
  background: linear-gradient(135deg, var(--navbar-primary), var(--navbar-secondary));
  color: white;
  padding: 1rem 1.5rem;
  text-decoration: none;
  border-radius: var(--navbar-radius);
  font-weight: 600;
  text-align: center;
  transition: var(--navbar-transition);
  box-shadow: var(--navbar-shadow);
  margin: 1rem;
  display: block;
}

.navbar-mobile-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--navbar-shadow-lg);
  background: linear-gradient(135deg, var(--navbar-primary-hover), var(--navbar-secondary));
}

/* Theme Toggle Button */
.theme-toggle {
  width: 44px;
  height: 44px;
  border: none;
  background: linear-gradient(135deg, var(--navbar-card-bg), rgba(255, 255, 255, 0.1));
  border: 1px solid var(--navbar-border);
  border-radius: var(--navbar-radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--navbar-transition);
  box-shadow: var(--navbar-shadow);
  position: relative;
  overflow: hidden;
}

.theme-toggle::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--navbar-primary), var(--navbar-secondary));
  opacity: 0;
  transition: opacity var(--navbar-transition);
  border-radius: var(--navbar-radius-full);
}

.theme-toggle:hover::before {
  opacity: 1;
}

.theme-toggle:hover {
  transform: scale(1.05);
  box-shadow: var(--navbar-shadow-lg);
  border-color: var(--navbar-primary);
}

.dark .theme-toggle {
  background: linear-gradient(135deg, var(--navbar-card-bg), rgba(169, 112, 255, 0.1));
  border-color: var(--navbar-border);
}

.dark .theme-toggle:hover {
  border-color: var(--navbar-primary);
}

.theme-toggle svg {
  width: 22px;
  height: 22px;
  color: var(--navbar-text);
  transition: var(--navbar-transition);
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.theme-toggle:hover svg {
  color: white;
  transform: scale(1.2) rotate(180deg);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.dark .theme-toggle svg {
  color: var(--navbar-text);
}

.dark .theme-toggle:hover svg {
  color: white;
  transform: scale(1.2) rotate(180deg);
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

/* Theme Toggle Animation */
.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle .theme-icon-light,
.theme-toggle .theme-icon-dark {
  transition: var(--navbar-bounce);
}

.theme-toggle .theme-icon-dark {
  transform: rotate(180deg) scale(0.8);
  opacity: 0;
}

.dark .theme-toggle .theme-icon-light {
  transform: rotate(-180deg) scale(0.8);
  opacity: 0;
}

.dark .theme-toggle .theme-icon-dark {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}

/* Responsive Design */
/* ================= */

/* Very small screens (below 450px) - Hide login button */
@media (max-width: 450px) {
  .modern-navbar .navbar-cta,
  .navbar-cta,
  .navbar-container > div:last-child > .navbar-cta,
  .navbar-container > div:last-child > a[href*="login"],
  .navbar-container a[href="login.php"],
  .navbar-container a.navbar-cta {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    width: 0 !important;
    height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    overflow: hidden !important;
    position: absolute !important;
    left: -9999px !important;
    pointer-events: none !important;
    background: red !important; /* Test color to verify the rule is working */
  }
}

/* Small screens (640px and up) */
@media (min-width: 40rem) {
  .navbar-container {
    padding: var(--navbar-padding);
  }
  
  .navbar-mobile {
    width: min(350px, 80vw);
  }
}

/* Medium screens (768px and up) */
@media (min-width: 1160px) {
  .navbar-menu {
    display: flex;
  }
  
  .navbar-toggle {
    display: none;
  }
  
  .navbar-mobile,
  .navbar-overlay {
    display: none;
  }
  
  .navbar-gap {
    --navbar-gap: 1.5rem;
  }
}

/* Large screens (1024px and up) */
@media (min-width: 64rem) {
  .navbar-container {
    padding: 1rem 2rem;
  }
  
  .navbar-gap {
    --navbar-gap: 2.5rem;
  }
  
  .navbar-brand-text {
    font-size: 1.75rem;
  }
}

/* Extra large screens (1280px and up) */
@media (min-width: 80rem) {
  .navbar-container {
    padding: 1rem 3rem;
  }
}

/* Animation Classes */
/* ================= */

.fade-in-up {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-down {
  animation: fadeInDown 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.slide-in-right {
  animation: slideInRight 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.bounce-in {
  animation: bounceIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.pulse-glow {
  animation: pulseGlow 2s ease-in-out infinite alternate;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulseGlow {
  from {
    box-shadow: 0 0 20px rgba(85, 26, 139, 0.3);
  }
  to {
    box-shadow: 0 0 30px rgba(85, 26, 139, 0.6);
  }
}

.dark .pulse-glow {
  animation: pulseGlowDark 2s ease-in-out infinite alternate;
}

@keyframes pulseGlowDark {
  from {
    box-shadow: 0 0 20px rgba(169, 112, 255, 0.3);
  }
  to {
    box-shadow: 0 0 30px rgba(169, 112, 255, 0.6);
  }
}

/* Accessibility */
/* ============= */

.navbar-link:focus,
.navbar-cta:focus,
.navbar-toggle:focus,
.theme-toggle:focus {
  outline: 2px solid var(--navbar-primary);
  outline-offset: 2px;
}

.dark .navbar-link:focus,
.dark .navbar-cta:focus,
.dark .navbar-toggle:focus,
.dark .theme-toggle:focus {
  outline-color: var(--navbar-accent);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .navbar-link,
  .navbar-mobile-link {
    border: 1px solid currentColor;
  }
}

/* Print styles */
@media print {
  .modern-navbar {
    display: none;
  }
}