/**
 * UNIFIED BUTTON SYSTEM
 * Single source of truth for all button styles across the website
 * Consistent animations, hover effects, and visual hierarchy
 */

/* ========================================
   BASE BUTTON STYLES
   Core styling shared by all buttons
   ======================================== */
.btn {
  /* Display & Layout */
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  position: relative;
  overflow: hidden;
  
  /* Sizing & Spacing */
  padding: 12px 24px;
  min-width: 120px;
  white-space: nowrap;
  box-sizing: border-box !important;
  
  /* Typography */
  font-family: var(--font-family-primary) !important;
  font-weight: 600 !important;
  font-size: clamp(0.875rem, 0.85rem + 0.125vw, 0.95rem) !important;
  text-decoration: none !important;
  letter-spacing: 0.01em;
  line-height: 1.2;
  
  /* Visual Styling */
  border-radius: 999px !important;
  cursor: pointer !important;
  
  /* Transitions & Animations */
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform: translateY(0) scale(1);
  background-size: 200% 200%;
  background-position: 0% 50%;
}

/* ========================================
   BUTTON SIZE VARIANTS
   ======================================== */
.btn--small,
.btn-sm {
  padding: 8px 16px !important;
  font-size: clamp(0.8rem, 0.775rem + 0.125vw, 0.875rem) !important;
  min-width: 80px !important;
}

.btn--medium,
.btn-md {
  padding: 12px 24px !important;
  font-size: clamp(0.875rem, 0.85rem + 0.125vw, 0.95rem) !important;
  min-width: 120px !important;
}

.btn--large,
.btn-lg {
  padding: 16px 32px !important;
  font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem) !important;
  min-width: 200px !important;
}

/* ========================================
   PRIMARY BUTTON
   Main call-to-action style
   ======================================== */
.btn--primary,
.btn-primary {
  /* Gradient Background */
  background: linear-gradient(135deg, var(--color-primary, #00A2E8), var(--color-primary-dark, #0082BB)) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
  
  /* Shadow & Depth */
  box-shadow: 
    0 4px 16px rgba(0, 162, 232, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.1) !important;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn--primary:hover,
.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light, #33B5ED), var(--color-primary, #00A2E8)) !important;
  color: #FFFFFF !important;
  transform: translateY(-3px) scale(1.02);
  background-position: 100% 50%;
  
  box-shadow: 
    0 8px 24px rgba(0, 162, 232, 0.5),
    0 4px 8px rgba(0, 0, 0, 0.2),
    inset 0 0 20px rgba(255, 255, 255, 0.2) !important;
}

.btn--primary:active,
.btn-primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 
    0 2px 8px rgba(0, 162, 232, 0.3),
    0 1px 2px rgba(0, 0, 0, 0.1) !important;
}

/* ========================================
   SECONDARY BUTTON
   Alternative action style
   ======================================== */
.btn--secondary,
.btn-secondary {
  background: rgba(255, 255, 255, 0.9) !important;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary) !important;
  backdrop-filter: blur(10px);
  
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1) !important;
}

.btn--secondary:hover,
.btn-secondary:hover {
  background: linear-gradient(135deg, var(--color-primary), #0082BB) !important;
  color: #FFFFFF !important;
  border-color: var(--color-primary) !important;
  transform: translateY(-3px) scale(1.02);
  
  box-shadow: 
    0 6px 20px rgba(0, 162, 232, 0.4),
    inset 0 0 15px rgba(255, 255, 255, 0.15) !important;
}

.btn--secondary:active,
.btn-secondary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 162, 232, 0.2) !important;
}

/* ========================================
   OUTLINE BUTTON
   For "Learn More" and detail actions
   ======================================== */
.btn--outline,
.btn-outline {
  background: rgba(255, 255, 255, 0.95) !important;
  color: var(--color-primary, #00A2E8) !important;
  border: 2px solid var(--color-primary, #00A2E8) !important;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05) !important;
}

.btn--outline:hover,
.btn-outline:hover {
  background: linear-gradient(135deg, var(--color-primary, #00A2E8), var(--color-primary-dark, #0082BB)) !important;
  color: #FFFFFF !important;
  border-color: #0082BB !important;
  transform: translateY(-3px) scale(1.02);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  
  box-shadow: 
    0 6px 20px rgba(0, 162, 232, 0.5),
    0 0 0 3px rgba(0, 162, 232, 0.1),
    inset 0 0 15px rgba(255, 255, 255, 0.2) !important;
}

.btn--outline:active,
.btn-outline:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 162, 232, 0.3) !important;
}

/* ========================================
   GHOST BUTTON
   Minimal transparent style
   ======================================== */
.btn--ghost,
.btn-ghost {
  background: transparent !important;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary) !important;
  box-shadow: none !important;
}

.btn--ghost:hover,
.btn-ghost:hover {
  background: var(--color-primary) !important;
  color: #FFFFFF !important;
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 4px 16px rgba(0, 162, 232, 0.3) !important;
}

.btn--ghost:active,
.btn-ghost:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(0, 162, 232, 0.2) !important;
}

/* ========================================
   PRODUCT-SPECIFIC BUTTON COLORS
   ======================================== */
.btn--sip {
  background: linear-gradient(135deg, #00E676, #00C853) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
  box-shadow: 0 4px 16px rgba(0, 230, 118, 0.3) !important;
}

.btn--sip:hover {
  background: linear-gradient(135deg, #69F0AE, #00E676) !important;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 230, 118, 0.4) !important;
}

.btn--sms {
  background: linear-gradient(135deg, #FF5722, #F4511E) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
  box-shadow: 0 4px 16px rgba(255, 87, 34, 0.3) !important;
}

.btn--sms:hover {
  background: linear-gradient(135deg, #FF7043, #FF5722) !important;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 6px 20px rgba(255, 87, 34, 0.4) !important;
}

.btn--ccs {
  background: linear-gradient(135deg, var(--color-accent, #FFB000), var(--color-accent-dark, #FF9800)) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
  box-shadow: 0 4px 16px rgba(255, 176, 0, 0.3) !important;
}

.btn--ccs:hover {
  background: linear-gradient(135deg, var(--color-accent-light, #FFC947), var(--color-accent, #FFB000)) !important;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 6px 20px rgba(255, 176, 0, 0.4) !important;
}

.btn--data {
  background: linear-gradient(135deg, #9C4DCC, #7B1FA2) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
  box-shadow: 0 4px 16px rgba(156, 77, 204, 0.3) !important;
}

.btn--data:hover {
  background: linear-gradient(135deg, #B47CDB, #9C4DCC) !important;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 6px 20px rgba(156, 77, 204, 0.4) !important;
}

/* ========================================
   ANIMATED EFFECTS
   Shared animations for all buttons
   ======================================== */

/* Ripple Effect on Click */
.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.6) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1), 
              height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.6s ease;
  opacity: 0;
  pointer-events: none;
}

.btn:active::before {
  width: 200%;
  height: 200%;
  opacity: 1;
}

/* Glow Animation */
.btn::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, 
    transparent, 
    rgba(0, 162, 232, 0.3), 
    transparent);
  border-radius: inherit;
  opacity: 0;
  z-index: -1;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.btn:hover::after {
  opacity: 1;
  animation: glowRotate 2s linear infinite;
}

@keyframes glowRotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Pulse Animation for CTAs */
.btn--pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 
      0 4px 16px rgba(0, 162, 232, 0.3),
      0 2px 4px rgba(0, 0, 0, 0.1);
  }
  50% {
    box-shadow: 
      0 4px 20px rgba(0, 162, 232, 0.5),
      0 2px 8px rgba(0, 0, 0, 0.15),
      0 0 0 8px rgba(0, 162, 232, 0.1);
  }
}

/* Float Animation */
.btn--float {
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

/* ========================================
   BUTTON STATES
   ======================================== */

/* Focus States for Accessibility */
.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 162, 232, 0.3) !important;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Disabled State */
.btn:disabled,
.btn.disabled,
.btn[disabled] {
  opacity: 0.5 !important;
  cursor: not-allowed !important;
  transform: none !important;
  box-shadow: none !important;
  pointer-events: none !important;
}

/* Loading State */
.btn--loading,
.btn.loading {
  color: transparent !important;
  pointer-events: none !important;
  position: relative;
}

.btn--loading::after,
.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  border-top-color: transparent;
  animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
  to { transform: rotate(360deg); }
}

/* ========================================
   BUTTON GROUPS
   ======================================== */
.btn-group {
  display: inline-flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  margin: 1rem 0;
}

.btn-group .btn {
  margin: 0;
}

/* Compact button group */
.btn-group--compact {
  gap: 0.5rem;
}

/* Vertical button group */
.btn-group--vertical {
  flex-direction: column;
  width: 100%;
}

.btn-group--vertical .btn {
  width: 100%;
}

/* ========================================
   ICON BUTTONS
   ======================================== */
.btn--icon {
  padding: 12px !important;
  min-width: auto !important;
  width: 44px;
  height: 44px;
  border-radius: 50% !important;
}

.btn--icon.btn--small {
  width: 36px;
  height: 36px;
  padding: 8px !important;
}

.btn--icon.btn--large {
  width: 52px;
  height: 52px;
  padding: 14px !important;
}

/* Button with icon and text */
.btn--with-icon {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.5rem;
}

.btn--with-icon svg,
.btn--with-icon i {
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 640px) {
  /* Full width buttons on mobile */
  .btn--mobile-full,
  .btn-mobile-full {
    width: 100% !important;
    justify-content: center !important;
  }
  
  .btn-group {
    flex-direction: column;
    width: 100%;
  }
  
  .btn-group .btn {
    width: 100%;
  }
  
  /* Slightly smaller padding on mobile */
  .btn {
    padding: 10px 20px;
  }
  
  .btn--large {
    padding: 14px 28px !important;
  }
}

/* ========================================
   DARK MODE ADJUSTMENTS
   ======================================== */
@media (prefers-color-scheme: dark) {
  .btn--primary {
    background: linear-gradient(135deg, #5AB4F1, #2F69B3) !important;
    border: 2px solid rgba(90, 180, 241, 0.3) !important;
    box-shadow: 
      0 4px 16px rgba(90, 180, 241, 0.3),
      0 2px 4px rgba(0, 0, 0, 0.3) !important;
  }
  
  .btn--primary:hover {
    background: linear-gradient(135deg, #7AC5F5, #5AB4F1) !important;
    border-color: rgba(122, 197, 245, 0.5) !important;
    box-shadow: 
      0 6px 24px rgba(90, 180, 241, 0.4),
      0 3px 6px rgba(0, 0, 0, 0.4) !important;
  }
  
  .btn--secondary {
    background: rgba(30, 30, 30, 0.8) !important;
    color: #5AB4F1 !important;
    border: 2px solid #5AB4F1 !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3) !important;
  }
  
  .btn--secondary:hover {
    background: #5AB4F1 !important;
    color: #121212 !important;
    border-color: #7AC5F5 !important;
    box-shadow: 0 4px 16px rgba(90, 180, 241, 0.4) !important;
  }
  
  .btn--outline {
    background: rgba(30, 30, 30, 0.95) !important;
    color: #5AB4F1 !important;
    border: 2px solid #5AB4F1 !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3) !important;
  }
  
  .btn--outline:hover {
    background: linear-gradient(135deg, #5AB4F1, #2F69B3) !important;
    color: #FFFFFF !important;
    border-color: #2F69B3 !important;
    box-shadow: 0 4px 16px rgba(90, 180, 241, 0.4) !important;
  }
  
  .btn--ghost {
    color: #5AB4F1 !important;
    border-color: #5AB4F1 !important;
  }
  
  .btn--ghost:hover {
    background: #5AB4F1 !important;
    color: #121212 !important;
    border-color: #7AC5F5 !important;
    box-shadow: 0 4px 16px rgba(90, 180, 241, 0.4) !important;
  }
}

/* ========================================
   HIGH CONTRAST MODE
   ======================================== */
@media (prefers-contrast: high) {
  .btn {
    border-width: 3px !important;
  }
  
  .btn--primary {
    background: var(--color-primary) !important;
    border: 3px solid #FFFFFF !important;
  }
  
  .btn--secondary {
    background: transparent !important;
    border: 3px solid var(--color-primary) !important;
  }
  
  .btn:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
  }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
  .btn {
    border: 1px solid #000 !important;
    color: #000 !important;
    background: none !important;
    box-shadow: none !important;
    text-decoration: underline !important;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Full width button */
.btn--block {
  width: 100% !important;
  display: flex !important;
}

/* Rounded square button */
.btn--square {
  border-radius: var(--radius-lg) !important;
}

/* Sharp corners */
.btn--sharp {
  border-radius: 0 !important;
}

/* Text-only button (no background) */
.btn--text {
  background: transparent !important;
  border: none !important;
  color: var(--color-primary) !important;
  padding: 4px 8px !important;
  min-width: auto !important;
}

.btn--text:hover {
  background: rgba(0, 162, 232, 0.1) !important;
  color: var(--color-primary-hover) !important;
}

/* Success, Warning, Error variants */
.btn--success {
  background: linear-gradient(135deg, #4CAF50, #45A049) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
}

.btn--success:hover {
  background: linear-gradient(135deg, #66BB6A, #4CAF50) !important;
  box-shadow: 0 4px 16px rgba(76, 175, 80, 0.3) !important;
}

.btn--warning {
  background: linear-gradient(135deg, #FF9800, #F57C00) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
}

.btn--warning:hover {
  background: linear-gradient(135deg, #FFB74D, #FF9800) !important;
  box-shadow: 0 4px 16px rgba(255, 152, 0, 0.3) !important;
}

.btn--error,
.btn--danger {
  background: linear-gradient(135deg, #F44336, #D32F2F) !important;
  color: #FFFFFF !important;
  border: 2px solid transparent !important;
}

.btn--error:hover,
.btn--danger:hover {
  background: linear-gradient(135deg, #EF5350, #F44336) !important;
  box-shadow: 0 4px 16px rgba(244, 67, 54, 0.3) !important;
}