/* ===================================
   BUTTON COMPONENTS SYSTEM
   ===================================
   Standardized button styling using brand colors
   Primary: #c10000 (brand red)
   Accent: #ae44ff (purple accent)
   ================================= */

:root {
  /* Button-specific color variables */
  --btn-primary-bg: #c10000;
  --btn-primary-bg-hover: #e60000;
  --btn-primary-text: #ffffff;
  
  --btn-secondary-bg: transparent;
  --btn-secondary-border: #ae44ff;
  --btn-secondary-text: #ae44ff;
  --btn-secondary-hover-bg: #ae44ff;
  --btn-secondary-hover-text: #ffffff;
  
  --btn-outline-border: rgba(255, 255, 255, 0.3);
  --btn-outline-text: var(--text-primary);
  --btn-outline-hover-bg: rgba(255, 255, 255, 0.1);
  
  /* Button spacing and sizing */
  --btn-padding-sm: 0.5rem 1rem;
  --btn-padding-md: 0.75rem 1.5rem;
  --btn-padding-lg: 1rem 2rem;
  --btn-border-radius: 2rem;
  --btn-font-weight: 600;
  --btn-letter-spacing: 0.05em;
}

/* ===================================
   BASE BUTTON STYLES
   ================================= */

.btn-base,
.btn-primary,
.btn-secondary,
.btn-outline,
.cta-button,
.join-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: inherit;
  font-weight: var(--btn-font-weight);
  letter-spacing: var(--btn-letter-spacing);
  text-decoration: none;
  text-align: center;
  border: none;
  border-radius: var(--btn-border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn-base:focus,
.btn-primary:focus,
.btn-secondary:focus,
.btn-outline:focus,
.cta-button:focus,
.join-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(193, 0, 0, 0.3);
}

.btn-base:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-outline:focus-visible,
.cta-button:focus-visible,
.join-btn:focus-visible {
  outline: 2px solid #ae44ff;
  outline-offset: 2px;
}

.btn-base:disabled,
.btn-primary:disabled,
.btn-secondary:disabled,
.btn-outline:disabled,
.cta-button:disabled,
.join-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ===================================
   PRIMARY BUTTON (Main CTAs)
   ================================= */

.btn-primary,
.cta-button,
.join-btn {
  padding: var(--btn-padding-md);
  background: linear-gradient(120deg, var(--btn-primary-bg), #a00000);
  color: var(--btn-primary-text);
  border: 2px solid transparent;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.btn-primary:hover,
.cta-button:hover,
.join-btn:hover {
  transform: translateY(-2px);
  background: linear-gradient(120deg, var(--btn-primary-bg-hover), #c10000);
  box-shadow: 0 8px 24px rgba(193, 0, 0, 0.4);
}

.btn-primary:active,
.cta-button:active,
.join-btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(193, 0, 0, 0.3);
}

/* ===================================
   SECONDARY BUTTON (Less prominent actions)
   ================================= */

.btn-secondary {
  padding: var(--btn-padding-md);
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
  border: 2px solid var(--btn-secondary-border);
  font-size: 0.9rem;
}

.btn-secondary:hover {
  background: var(--btn-secondary-hover-bg);
  color: var(--btn-secondary-hover-text);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(174, 68, 255, 0.3);
}

.btn-secondary:active {
  transform: translateY(0);
  box-shadow: 0 3px 10px rgba(174, 68, 255, 0.2);
}

/* ===================================
   OUTLINE BUTTON (Subtle actions)
   ================================= */

.btn-outline {
  padding: var(--btn-padding-md);
  background: transparent;
  color: var(--btn-outline-text);
  border: 2px solid var(--btn-outline-border);
  font-size: 0.9rem;
}

.btn-outline:hover {
  background: var(--btn-outline-hover-bg);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 255, 255, 0.1);
}

.btn-outline:active {
  transform: translateY(0);
}

/* ===================================
   BUTTON SIZES
   ================================= */

.btn-sm {
  padding: var(--btn-padding-sm);
  font-size: 0.8rem;
}

.btn-lg {
  padding: var(--btn-padding-lg);
  font-size: 1rem;
}

/* ===================================
   BUTTON GROUPS
   ================================= */

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.btn-group.btn-group-center {
  justify-content: center;
}

.btn-group.btn-group-start {
  justify-content: flex-start;
}

.btn-group.btn-group-end {
  justify-content: flex-end;
}

/* ===================================
   LOADING STATE
   ================================= */

.btn-loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn-loading .btn-text {
  opacity: 0;
}

.btn-loading .btn-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-spinner .fa-spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ===================================
   ICON BUTTONS
   ================================= */

.btn-icon {
  padding: 0.75rem;
  border-radius: 50%;
  width: 48px;
  height: 48px;
}

.btn-icon i {
  font-size: 1.2rem;
}

/* ===================================
   RESPONSIVE DESIGN
   ================================= */

@media (max-width: 768px) {
  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn-group .btn-base {
    width: 100%;
    justify-content: center;
  }
  
  .btn-sm {
    padding: 0.625rem 1.25rem;
  }
  
  .btn-base {
    padding: 0.875rem 1.75rem;
  }
  
  .btn-lg {
    padding: 1.125rem 2.25rem;
  }
}

@media (max-width: 480px) {
  .btn-base {
    font-size: 0.85rem;
    padding: 0.75rem 1.5rem;
  }
  
  .btn-lg {
    font-size: 0.9rem;
    padding: 1rem 2rem;
  }
}

/* ===================================
   ACCESSIBILITY IMPROVEMENTS
   ================================= */

@media (prefers-reduced-motion: reduce) {
  .btn-base,
  .btn-base:hover,
  .btn-base:active {
    transition: none;
    transform: none !important;
    animation: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn-primary {
    border: 2px solid var(--btn-primary-text);
  }
  
  .btn-secondary {
    border-width: 3px;
  }
  
  .btn-outline {
    border-width: 3px;
  }
}

/* ===================================
   LEGACY COMPATIBILITY
   ================================= */

/* Enhanced primary-link and secondary-link for backward compatibility */
.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.4px;
  transition: color 0.2s ease, transform 0.2s ease;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
}

.primary-link {
  color: var(--btn-primary-bg);
  background: transparent;
  border: 2px solid transparent;
}

.primary-link:hover {
  color: var(--btn-primary-bg-hover);
  transform: translateY(-2px);
  background: rgba(193, 0, 0, 0.1);
}

.secondary-link {
  color: var(--btn-secondary-text);
  background: transparent;
  border: 2px solid transparent;
}

.secondary-link:hover {
  color: var(--btn-secondary-hover-bg);
  transform: translateY(-2px);
  background: rgba(174, 68, 255, 0.1);
}