/* =============================================================================
   GLASSUI - Modern Glass-morphism Component Library
   Version: 1.0.0
   License: MIT
   ============================================================================= */

/* =============================================================================
   DESIGN TOKENS - CSS Custom Properties
   ============================================================================= */

:root {
  /* === BUTTON COLORS === */
  --glassui-red: #e74c3c;
  --glassui-red-hover: #c0392b;
  --glassui-blue: #007bff;
  --glassui-blue-hover: #0056b3;
  --glassui-white: rgba(255, 255, 255, 0.95);
  --glassui-white-hover: rgba(255, 255, 255, 0.85);
  --glassui-green: #22c55e;
  --glassui-green-hover: #16a34a;
  
  /* === GLASS MORPHISM === */
  --glassui-bg: rgba(255, 255, 255, 0.95);
  --glassui-bg-light: rgba(255, 255, 255, 0.85);
  --glassui-bg-strong: rgba(255, 255, 255, 0.98);
  --glassui-border: rgba(255, 255, 255, 0.2);
  --glassui-blur: blur(15px);
  
  /* === SHADOWS === */
  --glassui-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --glassui-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --glassui-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  
  /* === TEXT COLORS === */
  --glassui-text-primary: #2c3e50;
  --glassui-text-secondary: #7f8c8d;
  --glassui-text-light: #6c757d;
  
  /* === SPACING === */
  --glassui-space-xs: 4px;
  --glassui-space-sm: 8px;
  --glassui-space-md: 12px;
  --glassui-space-lg: 16px;
  --glassui-space-xl: 20px;
  
  /* === TRANSITIONS === */
  --glassui-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --glassui-transition-fast: all 0.15s ease-out;
}

/* =============================================================================
   GLASSUI BUTTON COMPONENT
   ============================================================================= */

/* Base Button Class */
.glassui-btn {
  /* Layout */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--glassui-space-sm);
  
  /* Sizing */
  padding: var(--glassui-space-md) var(--glassui-space-lg);
  min-height: 38px;
  min-width: 120px;
  
  /* Typography */
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  
  /* Appearance */
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  
  /* Glass Effect */
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  
  /* Animation */
  transition: var(--glassui-transition);
  box-shadow: var(--glassui-shadow-md);
}

/* Button States */
.glassui-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--glassui-shadow-lg);
  filter: brightness(0.9);
}

.glassui-btn:active {
  transform: translateY(0);
  box-shadow: var(--glassui-shadow-sm);
  filter: brightness(0.8);
}

.glassui-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  filter: none;
}

.glassui-btn:disabled:hover {
  transform: none;
  box-shadow: var(--glassui-shadow-md);
  filter: none;
}

/* =============================================================================
   BUTTON COLOR VARIANTS
   ============================================================================= */

.glassui-btn--red {
  background: var(--glassui-red);
  color: white;
  border-color: var(--glassui-red);
}

.glassui-btn--blue {
  background: var(--glassui-blue);
  color: white;
  border-color: var(--glassui-blue);
}

.glassui-btn--white {
  background: var(--glassui-white);
  color: var(--glassui-text-primary);
  border-color: var(--glassui-border);
}

.glassui-btn--green {
  background: var(--glassui-green);
  color: white;
  border-color: var(--glassui-green);
}

/* =============================================================================
   BUTTON SIZE VARIANTS
   ============================================================================= */

.glassui-btn--small {
  padding: var(--glassui-space-sm) var(--glassui-space-md);
  min-height: 32px;
  min-width: 80px;
  font-size: 13px;
}

.glassui-btn--large {
  padding: var(--glassui-space-lg) var(--glassui-space-xl);
  min-height: 44px;
  min-width: 140px;
  font-size: 16px;
}


/* =============================================================================
   GLASSUI CONTAINER COMPONENT
   ============================================================================= */

.glassui-container {
  background: var(--glassui-bg);
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  border-radius: 12px;
  box-shadow: var(--glassui-shadow-lg);
  border: 1px solid var(--glassui-border);
  padding: var(--glassui-space-lg);
}

.glassui-container--large {
  padding: var(--glassui-space-xl);
  border-radius: 16px;
}

.glassui-container--small {
  padding: var(--glassui-space-md);
  border-radius: 8px;
}

/* =============================================================================
   GLASSUI NAVIGATION COMPONENTS
   ============================================================================= */

.glassui-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--glassui-bg);
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  border-bottom: 1px solid var(--glassui-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0 var(--glassui-space-lg);
  box-shadow: var(--glassui-shadow-md);
  gap: var(--glassui-space-md);
}

.glassui-nav-button {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 8px;
  background: rgba(0, 123, 255, 0.1);
  color: var(--glassui-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--glassui-transition);
  position: relative;
  overflow: hidden;
}

.glassui-nav-button:hover {
  background: rgba(5, 32, 142, 0.2);
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(5, 32, 142, 0.2);
}

.glassui-nav-title {
  flex: 1;
  text-align: center;
}

.glassui-nav-title h1 {
  color: #05208e;
  font-size: 1.2em;
  font-weight: 600;
  margin: 0;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Navigation dropdown visibility */
.nav-dropdown-hidden {
  display: none !important;
}

.nav-dropdown-visible {
  display: block !important;
}

/* Navigation dropdown positioning */
.glassui-nav .nav-dropdown {
  position: absolute;
  top: 60px;
  left: 20px;
  z-index: 1001;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  min-width: 280px;
  padding: 12px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
}

/* Navigation dropdown - visible state */
.nav-dropdown-visible {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
  display: block !important;
}

/* Navigation dropdown items */
.nav-dropdown-item {
  display: block;
  padding: 16px 20px;
  color: #333;
  text-decoration: none;
  font-size: 18px;
  font-weight: 500;
  transition: all 0.2s ease;
  border-radius: 12px;
  margin-bottom: 8px;
  cursor: pointer;
}

.nav-dropdown-item:last-child {
  margin-bottom: 0;
}

.nav-dropdown-item:hover {
  background: rgba(5, 32, 142, 0.08);
  color: #05208e;
  transform: translateX(4px);
}

.nav-dropdown-item.active {
  background: linear-gradient(135deg, rgba(5, 32, 142, 0.15) 0%, rgba(5, 32, 142, 0.08) 100%);
  color: #05208e;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(5, 32, 142, 0.1);
}

/* =============================================================================
   GLASSUI DROPDOWN COMPONENT
   ============================================================================= */

.glassui-dropdown {
  position: relative;
  display: inline-block;
}

.glassui-dropdown-button {
  padding: var(--glassui-space-md) var(--glassui-space-lg);
  border: 1px solid var(--glassui-border);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  min-width: 180px;
  width: 100%;
  background: var(--glassui-bg);
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  color: var(--glassui-text-primary);
  transition: var(--glassui-transition);
  box-shadow: var(--glassui-shadow-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--glassui-space-sm);
}

.glassui-dropdown-button:hover {
  border-color: rgba(52, 152, 219, 0.3);
  box-shadow: var(--glassui-shadow-lg);
  transform: translateY(-1px);
}

.glassui-dropdown-button:focus {
  border-color: rgba(52, 152, 219, 0.5);
  box-shadow: 0 8px 32px rgba(52, 152, 219, 0.25);
  transform: translateY(-1px);
  outline: none;
}

.glassui-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 280px;
  background: var(--glassui-bg);
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  border-radius: 12px;
  box-shadow: var(--glassui-shadow-lg);
  border: 1px solid var(--glassui-border);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--glassui-transition);
  margin-top: 4px;
  max-height: 300px;
  overflow-y: auto;
}

.glassui-dropdown--open .glassui-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.glassui-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--glassui-space-md);
  padding: 6px 12px;
  color: var(--glassui-text-primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--glassui-transition-fast);
  border-radius: 4px;
  margin: 1px 4px;
  cursor: pointer;
}

.glassui-dropdown-item:hover {
  background: rgba(52, 152, 219, 0.1);
  color: var(--glassui-blue);
  transform: translateX(2px);
}

.glassui-dropdown-item.selected,
.glassui-dropdown-item.active {
  background: rgba(52, 152, 219, 0.15);
  color: var(--glassui-blue);
  font-weight: 600;
}

.glassui-dropdown-item:first-child {
  margin-top: 8px;
}

.glassui-dropdown-item:last-child {
  margin-bottom: 8px;
}

/* =============================================================================
   GLASSUI INPUT COMPONENTS
   ============================================================================= */

.glassui-input {
  padding: var(--glassui-space-md) var(--glassui-space-lg);
  border: 1px solid var(--glassui-border);
  border-radius: 8px;
  background: var(--glassui-bg);
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  color: var(--glassui-text-primary);
  font-size: 14px;
  transition: var(--glassui-transition);
  box-shadow: var(--glassui-shadow-sm);
}

.glassui-input:focus {
  outline: none;
  border-color: var(--glassui-blue);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
  transform: translateY(-1px);
}

.glassui-input:hover {
  border-color: rgba(52, 152, 219, 0.3);
  box-shadow: var(--glassui-shadow-md);
}

.glassui-textarea {
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
}

/* =============================================================================
   GLASSUI MODAL COMPONENT
   ============================================================================= */

.glassui-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--glassui-space-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--glassui-transition);
}

.glassui-modal-overlay.show {
  opacity: 1;
  visibility: visible;
}

.glassui-modal {
  background: var(--glassui-bg);
  backdrop-filter: var(--glassui-blur);
  -webkit-backdrop-filter: var(--glassui-blur);
  border-radius: 16px;
  box-shadow: var(--glassui-shadow-lg);
  border: 1px solid var(--glassui-border);
  max-width: 90vw;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: var(--glassui-transition);
}

.glassui-modal-overlay.show .glassui-modal {
  transform: scale(1);
}