/**
 * @file
 * Shared CSS variables for OJS Integration module.
 * 
 * This file contains CSS custom properties (variables) that define the
 * consistent color scheme and design tokens used across all OJS templates.
 * This approach follows DRY principles and ensures design consistency.
 */

:root {
  /* Primary Colors - Main brand colors */
  --ojs-primary: #024956;
  --ojs-primary-hover: #013a44;
  --ojs-primary-light: #d9ebeb;
  
  /* Secondary Colors - Accent colors */
  --ojs-secondary: #249597;
  --ojs-secondary-hover: #1a6b6d;
  --ojs-secondary-light: #e6f7f7;
  
  /* Background Colors */
  --ojs-bg-primary: #ffffff;
  --ojs-bg-secondary: #f8f9fa;
  --ojs-bg-tertiary: #f1f5f5;
  --ojs-bg-quaternary: #f9fafb;
  --ojs-bg-light: #f3f4f6;
  
  /* Border Colors */
  --ojs-border-primary: #e5e7eb;
  --ojs-border-secondary: #d1d5db;
  --ojs-border-light: #f3f4f6;
  
  /* Text Colors */
  --ojs-text-primary: #111827;
  --ojs-text-secondary: #374151;
  --ojs-text-tertiary: #6b7280;
  --ojs-text-muted: #9ca3af;
  
  /* Status Colors */
  --ojs-success: #10b981;
  --ojs-warning: #f59e0b;
  --ojs-error: #ef4444;
  --ojs-info: #3b82f6;
  
  /* Special Colors */
  --ojs-orcid: #a6ce39;
  --ojs-orcid-dark: #8fb32a;
  
  /* Shadow Colors */
  --ojs-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --ojs-shadow-md: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --ojs-shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --ojs-shadow-xl: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Focus Colors */
  --ojs-focus-ring: 2px solid var(--ojs-primary);
  --ojs-focus-offset: 2px;
  
  /* Border Radius */
  --ojs-radius-sm: 0.25rem;
  --ojs-radius-md: 0.375rem;
  --ojs-radius-lg: 0.5rem;
  --ojs-radius-xl: 0.75rem;
  --ojs-radius-full: 1rem;
  
  /* Spacing */
  --ojs-spacing-xs: 0.25rem;
  --ojs-spacing-sm: 0.5rem;
  --ojs-spacing-md: 1rem;
  --ojs-spacing-lg: 1.5rem;
  --ojs-spacing-xl: 2rem;
  --ojs-spacing-2xl: 3rem;
  
  /* Transitions */
  --ojs-transition-fast: 0.15s ease-in-out;
  --ojs-transition-normal: 0.2s ease-in-out;
  --ojs-transition-slow: 0.3s ease-in-out;
  
  /* Typography */
  --ojs-font-size-xs: 0.75rem;
  --ojs-font-size-sm: 0.875rem;
  --ojs-font-size-base: 1rem;
  --ojs-font-size-lg: 1.125rem;
  --ojs-font-size-xl: 1.25rem;
  --ojs-font-size-2xl: 1.5rem;
  --ojs-font-size-3xl: 2rem;
  
  --ojs-font-weight-normal: 400;
  --ojs-font-weight-medium: 500;
  --ojs-font-weight-semibold: 600;
  --ojs-font-weight-bold: 700;
  
  --ojs-line-height-tight: 1.2;
  --ojs-line-height-normal: 1.4;
  --ojs-line-height-relaxed: 1.6;
  --ojs-line-height-loose: 1.7;
}

/* Utility classes for common patterns */
.ojs-card {
  background: var(--ojs-bg-primary);
  border: 1px solid var(--ojs-border-primary);
  border-radius: var(--ojs-radius-lg);
  box-shadow: var(--ojs-shadow-md);
  transition: all var(--ojs-transition-normal);
}

.ojs-card:hover {
  box-shadow: var(--ojs-shadow-lg);
  transform: translateY(-1px);
}

.ojs-button-primary {
  background-color: var(--ojs-primary);
  color: var(--ojs-bg-primary);
  border: 1px solid var(--ojs-primary);
  border-radius: var(--ojs-radius-md);
  padding: var(--ojs-spacing-sm) var(--ojs-spacing-lg);
  font-weight: var(--ojs-font-weight-semibold);
  text-decoration: none;
  transition: all var(--ojs-transition-normal);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ojs-button-primary:hover {
  background-color: var(--ojs-primary-hover);
  border-color: var(--ojs-primary-hover);
  color: var(--ojs-bg-primary);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--ojs-shadow-lg);
}

.ojs-button-secondary {
  background-color: var(--ojs-secondary);
  color: var(--ojs-bg-primary);
  border: 1px solid var(--ojs-secondary);
  border-radius: var(--ojs-radius-md);
  padding: var(--ojs-spacing-sm) var(--ojs-spacing-lg);
  font-weight: var(--ojs-font-weight-semibold);
  text-decoration: none;
  transition: all var(--ojs-transition-normal);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ojs-button-secondary:hover {
  background-color: var(--ojs-secondary-hover);
  border-color: var(--ojs-secondary-hover);
  color: var(--ojs-bg-primary);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--ojs-shadow-lg);
}

.ojs-button-outline {
  background-color: transparent;
  color: var(--ojs-primary);
  border: 2px solid var(--ojs-primary);
  border-radius: var(--ojs-radius-md);
  padding: var(--ojs-spacing-sm) var(--ojs-spacing-lg);
  font-weight: var(--ojs-font-weight-semibold);
  text-decoration: none;
  transition: all var(--ojs-transition-normal);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ojs-button-outline:hover {
  background-color: var(--ojs-primary-light);
  border-color: var(--ojs-primary);
  color: var(--ojs-primary);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(36, 149, 151, 0.3);
}

/* Botão específico para artigos/volumes */
.article-link-btn {
  display: inline-block;
  background: var(--ojs-bg-tertiary);
  color: var(--ojs-secondary);
  text-decoration: none;
  padding: var(--ojs-spacing-sm) var(--ojs-spacing-lg);
  border-radius: var(--ojs-radius-md);
  font-weight: var(--ojs-font-weight-semibold);
  font-size: var(--ojs-font-size-sm);
  text-align: center;
  transition: all var(--ojs-transition-normal);
  border: 2px solid var(--ojs-secondary);
  width: 100%;
  box-sizing: border-box;
}

.article-link-btn:hover {
  background: var(--ojs-secondary-light);
  border-color: var(--ojs-secondary);
  color: var(--ojs-secondary);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(36, 149, 151, 0.3);
}

.article-link-btn:focus {
  outline: var(--ojs-focus-ring);
  outline-offset: var(--ojs-focus-offset);
  background: var(--ojs-secondary-light);
  border-color: var(--ojs-secondary);
}

.ojs-link {
  color: var(--ojs-primary);
  text-decoration: none;
  transition: color var(--ojs-transition-normal);
}

.ojs-link:hover {
  color: var(--ojs-primary-hover);
  text-decoration: underline;
}

.ojs-link-secondary {
  color: var(--ojs-secondary);
  text-decoration: none;
  transition: color var(--ojs-transition-normal);
}

.ojs-link-secondary:hover {
  color: var(--ojs-secondary-hover);
  text-decoration: underline;
}

.ojs-badge {
  background: var(--ojs-bg-light);
  color: var(--ojs-text-secondary);
  padding: var(--ojs-spacing-xs) var(--ojs-spacing-sm);
  border-radius: var(--ojs-radius-full);
  font-size: var(--ojs-font-size-sm);
  font-weight: var(--ojs-font-weight-medium);
}

.ojs-tag {
  background: var(--ojs-secondary-light);
  color: var(--ojs-secondary);
  padding: var(--ojs-spacing-xs) var(--ojs-spacing-sm);
  border-radius: var(--ojs-radius-full);
  font-size: var(--ojs-font-size-sm);
  font-weight: var(--ojs-font-weight-medium);
  transition: all var(--ojs-transition-normal);
}

.ojs-tag:hover {
  background: var(--ojs-secondary);
  color: var(--ojs-bg-primary);
  transform: translateY(-1px);
}

/* Focus styles for accessibility */
.ojs-focusable:focus {
  outline: var(--ojs-focus-ring);
  outline-offset: var(--ojs-focus-offset);
  border-radius: var(--ojs-radius-sm);
}

/* Animation utilities */
.ojs-fade-in-up {
  animation: ojsFadeInUp var(--ojs-transition-slow) ease-out;
}

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

/* Stagger animation delays */
.ojs-stagger-1 { animation-delay: 0.1s; }
.ojs-stagger-2 { animation-delay: 0.2s; }
.ojs-stagger-3 { animation-delay: 0.3s; }
.ojs-stagger-4 { animation-delay: 0.4s; }
.ojs-stagger-5 { animation-delay: 0.5s; }
.ojs-stagger-6 { animation-delay: 0.6s; }
.ojs-stagger-7 { animation-delay: 0.7s; }
.ojs-stagger-8 { animation-delay: 0.8s; }