/**
 * Ultra Modern Floating Chat Icon
 * Version: 1.0.0
 * Isolated and non-intrusive design with continuous animations
 */

/* ============================================
   CSS RESET & ISOLATION
   ============================================ */
.ulo-chat,
.ulo-chat *,
.ulo-chat *::before,
.ulo-chat *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  vertical-align: baseline;
  animation: none;
  transition: none;
}

/* ============================================
   CSS CUSTOM PROPERTIES (THEMING)
   ============================================ */
:root {
  --ulo-chat-primary: #6366f1;
  --ulo-chat-primary-dark: #4f46e5;
  --ulo-chat-primary-light: #818cf8;
  --ulo-chat-success: #10b981;
  --ulo-chat-error: #ef4444;
  --ulo-chat-warning: #f59e0b;
  --ulo-chat-white: #ffffff;
  --ulo-chat-shadow: 0 10px 40px rgba(99, 102, 241, 0.4);
  --ulo-chat-shadow-hover: 0 15px 50px rgba(99, 102, 241, 0.5);
  --ulo-chat-shadow-active: 0 5px 25px rgba(99, 102, 241, 0.3);
  
  --ulo-chat-size: 64px;
  --ulo-chat-icon-size: 28px;
  --ulo-chat-border-radius: 50%;
  --ulo-chat-position-bottom: 30px;
  --ulo-chat-position-left: 30px;
  --ulo-chat-z-index: 999999;
  
  --ulo-chat-timing: cubic-bezier(0.4, 0, 0.2, 1);
  --ulo-chat-duration: 0.3s;
  --ulo-chat-duration-bounce: 2s;
  --ulo-chat-duration-pulse: 2.5s;
}

/* ============================================
   CHAT CONTAINER
   ============================================ */
.ulo-chat {
  position: fixed;
  bottom: var(--ulo-chat-position-bottom);
  left: var(--ulo-chat-position-left);
  z-index: var(--ulo-chat-z-index);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   MAIN CHAT BUTTON
   ============================================ */
.ulo-chat-button {
  width: var(--ulo-chat-size);
  height: var(--ulo-chat-size);
  background: linear-gradient(135deg, var(--ulo-chat-primary) 0%, var(--ulo-chat-primary-dark) 100%);
  border: none;
  border-radius: var(--ulo-chat-border-radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--ulo-chat-shadow);
  transition: all var(--ulo-chat-duration) var(--ulo-chat-timing);
  outline: none;
  overflow: hidden;
  text-decoration: none;
  
  /* Continuous floating animation */
  animation: ulo-float var(--ulo-chat-duration-bounce) ease-in-out infinite;
}

.ulo-chat-button:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: var(--ulo-chat-shadow-hover);
  animation-duration: var(--ulo-chat-duration);
}

.ulo-chat-button:active {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--ulo-chat-shadow-active);
  animation-duration: var(--ulo-chat-duration);
}

/* ============================================
   ICON STYLING
   ============================================ */
.ulo-chat-icon {
  width: var(--ulo-chat-icon-size);
  height: var(--ulo-chat-icon-size);
  color: var(--ulo-chat-white);
  transition: all var(--ulo-chat-duration) var(--ulo-chat-timing);
}

/* Icon animation on hover */
.ulo-chat-button:hover .ulo-chat-icon {
  transform: rotate(10deg) scale(1.1);
}

/* ============================================
   RIPPLE EFFECT
   ============================================ */
.ulo-chat-button::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width var(--ulo-chat-duration) var(--ulo-chat-timing),
              height var(--ulo-chat-duration) var(--ulo-chat-timing);
}

.ulo-chat-button:active::before {
  width: 100%;
  height: 100%;
}

/* ============================================
   NOTIFICATION BADGE
   ============================================ */
.ulo-chat-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--ulo-chat-error);
  color: var(--ulo-chat-white);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 12px;
  min-width: 20px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.4);
  border: 2px solid var(--ulo-chat-white);
  
  /* Pulse animation for notification */
  animation: ulo-pulse-badge var(--ulo-chat-duration-pulse) ease-in-out infinite;
}

.ulo-chat-badge.hidden {
  display: none;
}

/* ============================================
   PULSE RING EFFECT
   ============================================ */
.ulo-chat-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  border: 2px solid var(--ulo-chat-primary-light);
  border-radius: var(--ulo-chat-border-radius);
  transform: translate(-50%, -50%);
  opacity: 0;
  pointer-events: none;
}

.ulo-chat-button:hover .ulo-chat-pulse {
  animation: ulo-pulse-ring 1.5s ease-out infinite;
}

/* ============================================
   TOOLTIP
   ============================================ */
.ulo-chat-tooltip {
  position: absolute;
  left: 80px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.85);
  color: var(--ulo-chat-white);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s var(--ulo-chat-timing);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000000;
}

.ulo-chat-tooltip::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-right-color: rgba(0, 0, 0, 0.85);
}

.ulo-chat:hover .ulo-chat-tooltip {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   LIGHT RAYS EFFECT
   ============================================ */
.ulo-chat-light-rays {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  pointer-events: none;
  opacity: 0;
}

.ulo-chat-button:hover .ulo-chat-light-rays {
  opacity: 1;
}

.ulo-chat-light-rays::before,
.ulo-chat-light-rays::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 2px;
  background: linear-gradient(135deg, transparent, var(--ulo-chat-primary-light), transparent);
  border-radius: 1px;
  transform-origin: center;
}

.ulo-chat-light-rays::before {
  animation: ulo-ray-rotate 3s linear infinite;
}

.ulo-chat-light-rays::after {
  animation: ulo-ray-rotate 3s linear infinite;
  animation-delay: 1.5s;
}

/* ============================================
   ANIMATIONS
   ============================================ */

/* Floating animation */
@keyframes ulo-float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-8px);
  }
}

/* Pulse animation for badge */
@keyframes ulo-pulse-badge {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.9;
  }
}

/* Pulse ring effect */
@keyframes ulo-pulse-ring {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.4);
    opacity: 0;
  }
}

/* Rotate light ray */
@keyframes ulo-ray-rotate {
  0% {
    transform: translate(-50%, -50%) rotate(0deg) scale(1);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg) scale(1);
  }
}

/* Breathing effect for icon */
@keyframes ulo-breathing {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* ============================================
   DIFFERENT ANIMATION STYLES
   ============================================ */

/* Style 1: Bounce (default) */
.ulo-chat-style-bounce .ulo-chat-button {
  animation: ulo-float var(--ulo-chat-duration-bounce) ease-in-out infinite;
}

/* Style 2: Pulse */
.ulo-chat-style-pulse .ulo-chat-button {
  animation: ulo-pulse-only var(--ulo-chat-duration-pulse) ease-in-out infinite;
}

/* Style 3: Rotate */
.ulo-chat-style-rotate .ulo-chat-button {
  animation: ulo-rotate-slow 4s linear infinite;
}

/* Style 4: Breathe */
.ulo-chat-style-breathe .ulo-chat-button {
  animation: ulo-breathing 3s ease-in-out infinite;
}

/* Style 5: Wave */
.ulo-chat-style-wave .ulo-chat-button {
  animation: ulo-wave 3s ease-in-out infinite;
}

@keyframes ulo-pulse-only {
  0%, 100% {
    transform: scale(1);
    box-shadow: var(--ulo-chat-shadow);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.3);
  }
}

@keyframes ulo-rotate-slow {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes ulo-wave {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  25% {
    transform: translateY(-4px) rotate(1deg);
  }
  75% {
    transform: translateY(-4px) rotate(-1deg);
  }
}

/* ============================================
   POSITION VARIANTS
   ============================================ */

/* Bottom Right */
.ulo-chat-position-bottom-right {
  left: auto;
  right: var(--ulo-chat-position-left);
}

/* Bottom Center */
.ulo-chat-position-bottom-center {
  left: 50%;
  transform: translateX(-50%);
}

/* Top Right */
.ulo-chat-position-top-right {
  top: var(--ulo-chat-position-bottom);
  bottom: auto;
  left: auto;
  right: var(--ulo-chat-position-left);
}

/* Top Left */
.ulo-chat-position-top-left {
  top: var(--ulo-chat-position-bottom);
  bottom: auto;
}

/* Side Right (middle) */
.ulo-chat-position-side-right {
  top: 50%;
  left: auto;
  right: var(--ulo-chat-position-left);
  transform: translateY(-50%);
}

/* Middle Right */
.ulo-chat-position-middle-right {
  top: 50%;
  left: auto;
  right: var(--ulo-chat-position-left);
  bottom: auto;
  transform: translateY(-50%);
}

/* Middle Left */
.ulo-chat-position-middle-left {
  top: 50%;
  left: var(--ulo-chat-position-left);
  bottom: auto;
  transform: translateY(-50%);
}

/* Middle Center */
.ulo-chat-position-middle-center {
  top: 50%;
  left: 50%;
  bottom: auto;
  transform: translate(-50%, -50%);
}

/* ============================================
   SIZE VARIANTS
   ============================================ */
.ulo-chat-size-small {
  --ulo-chat-size: 48px;
  --ulo-chat-icon-size: 22px;
  --ulo-chat-position-bottom: 25px;
  --ulo-chat-position-left: 25px;
}

.ulo-chat-size-large {
  --ulo-chat-size: 80px;
  --ulo-chat-icon-size: 36px;
  --ulo-chat-position-bottom: 35px;
  --ulo-chat-position-left: 35px;
}

/* ============================================
   THEME VARIANTS
   ============================================ */

/* Success theme */
.ulo-chat-theme-success {
  --ulo-chat-primary: var(--ulo-chat-success);
  --ulo-chat-primary-dark: #059669;
  --ulo-chat-primary-light: #34d399;
}

/* Error theme */
.ulo-chat-theme-error {
  --ulo-chat-primary: var(--ulo-chat-error);
  --ulo-chat-primary-dark: #dc2626;
  --ulo-chat-primary-light: #f87171;
}

/* Warning theme */
.ulo-chat-theme-warning {
  --ulo-chat-primary: var(--ulo-chat-warning);
  --ulo-chat-primary-dark: #d97706;
  --ulo-chat-primary-light: #fbbf24;
}

/* Dark theme */
.ulo-chat-theme-dark {
  --ulo-chat-primary: #1e293b;
  --ulo-chat-primary-dark: #0f172a;
  --ulo-chat-primary-light: #475569;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
  :root {
    --ulo-chat-size: 56px;
    --ulo-chat-icon-size: 24px;
    --ulo-chat-position-bottom: 20px;
    --ulo-chat-position-left: 20px;
  }

  .ulo-chat-tooltip {
    display: none;
  }
  
  .ulo-chat {
    --ulo-chat-position-left: 20px;
  }
}

@media (max-width: 480px) {
  :root {
    --ulo-chat-size: 52px;
    --ulo-chat-icon-size: 22px;
    --ulo-chat-position-bottom: 15px;
    --ulo-chat-position-left: 15px;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  .ulo-chat-button,
  .ulo-chat-button *,
  .ulo-chat-pulse,
  .ulo-chat-light-rays::before,
  .ulo-chat-light-rays::after,
  .ulo-chat-badge {
    animation: none !important;
  }
  
  .ulo-chat-button {
    transition: none !important;
  }
}

@media (prefers-color-scheme: dark) {
  .ulo-chat-tooltip {
    background: rgba(30, 41, 59, 0.95);
    color: #f1f5f9;
  }
  
  .ulo-chat-tooltip::before {
    border-right-color: rgba(30, 41, 59, 0.95);
  }
}

/* Focus styles for keyboard navigation */
.ulo-chat-button:focus-visible {
  outline: 2px solid var(--ulo-chat-primary-light);
  outline-offset: 2px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.ulo-chat-hidden {
  display: none !important;
}

.ulo-chat-disabled {
  pointer-events: none !important;
  opacity: 0.6 !important;
}

.ulo-chat-no-animation .ulo-chat-button,
.ulo-chat-no-animation .ulo-chat-badge {
  animation: none !important;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .ulo-chat-button {
    border: 2px solid var(--ulo-chat-white);
  }
  
  .ulo-chat-badge {
    border-color: var(--ulo-chat-white);
  }
}