/**
 * Global Stylesheet
 *
 * This file contains foundational styles for the entire site.
 * It includes base typography, layout components, and utility classes.
 *
 * Dependencies:
 * - Relies on CSS custom properties defined in style.css
 * - Should be loaded before other component-specific stylesheets.
 *
 * @package IIAR_Publishing
 */

/* --------------------------------------------------------------------
  1. Base & Typography
-------------------------------------------------------------------- */

html {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  font-family: var(--font-family-primary);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #fff;
  margin: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-secondary);
  font-weight: 700;
  line-height: 1.2;
  color: var(--heading-color);
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

/* Text Elements */
p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--link-color);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover, a:focus {
  color: var(--link-hover-color);
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

ul, ol {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-xs);
}

blockquote {
  margin: var(--spacing-lg) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--primary-color);
  background-color: var(--secondary-color);
  font-style: italic;
  color: #555;
}

code {
  font-family: var(--font-family-mono);
  background-color: #e8e8e8;
  padding: 0.2em 0.4em;
  border-radius: var(--border-radius-sm);
  font-size: 0.9em;
}

hr {
  border: 0;
  height: 1px;
  background-color: var(--border-color);
  margin: var(--spacing-xxl) 0;
}

/* --------------------------------------------------------------------
  2. Site Structure
-------------------------------------------------------------------- */

/* Main Layout Container */
.site {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex-grow: 1; /* Pushes footer to the bottom */
  width: 100%;
}

/* Content Area */
.content-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* --------------------------------------------------------------------
  3. Common Components
-------------------------------------------------------------------- */

/* Buttons */
.iiar-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
  font-family: var(--font-family-primary);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.iiar-button--primary {
  background-color: var(--primary-color);
  color: #fff;
}

.iiar-button--primary:hover {
  background-color: var(--link-hover-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.iiar-button--secondary {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.iiar-button--secondary:hover {
  background-color: var(--primary-color);
  color: #fff;
}

.iiar-button--outline {
  background-color: transparent;
  color: var(--text-color);
  border-color: var(--border-color);
}

.iiar-button--outline:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Forms */
.iiar-form-group {
  margin-bottom: var(--spacing-md);
}

.iiar-form-label {
  display: block;
  font-family: var(--font-family-secondary);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--heading-color);
}

.iiar-form-input,
.iiar-form-select,
.iiar-form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-family: var(--font-family-primary);
  background-color: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.iiar-form-input:focus,
.iiar-form-select:focus,
.iiar-form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.2);
}

/* Breadcrumbs */
.iiar-breadcrumbs {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: var(--spacing-lg);
}

.iiar-breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  margin: 0;
}

.iiar-breadcrumbs__item:not(:last-child)::after {
  content: '/';
  margin: 0 var(--spacing-sm);
  color: var(--border-color);
}

.iiar-breadcrumbs__item a {
  color: var(--link-color);
}

.iiar-breadcrumbs__item a:hover {
  color: var(--link-hover-color);
}

/* Pagination */
.iiar-pagination {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-xxl);
}

.iiar-pagination__item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-color);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
}

.iiar-pagination__item:hover,
.iiar-pagination__item.is-active {
  background-color: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}

/* --------------------------------------------------------------------
  4. Utility Classes
-------------------------------------------------------------------- */

/* Spacing */
.iiar-py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.iiar-py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.iiar-py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.iiar-py-xl { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.iiar-mt-0 { margin-top: 0; }
.iiar-mb-0 { margin-bottom: 0; }

/* Text Alignment */
.iiar-text-left { text-align: left; }
.iiar-text-center { text-align: center; }
.iiar-text-right { text-align: right; }

/* Screen Reader Text */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------
  5. Responsive Design
-------------------------------------------------------------------- */

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }

  .content-area {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  .iiar-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
  }
}

/* --------------------------------------------------------------------
  6. Print Styles
-------------------------------------------------------------------- */

@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a, a:visited {
    text-decoration: underline;
  }

  a[href]:after {
    content: " (" attr(href) ")";
  }

  .site-header,
  .site-footer,
  .iiar-button,
  .iiar-breadcrumbs,
  .iiar-pagination {
    display: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }
}
.iiar-form-input.error { border-color: var(--error-color); }
.field-error { color: var(--error-color); font-size: 0.8rem; margin-top: 5px; display: block; }
.notice { padding: var(--spacing-md); border-radius: var(--border-radius-md); margin-bottom: var(--spacing-md); }
.notice-success { background-color: var(--success-color); color: #fff; }
.notice-error { background-color: var(--error-color); color: #fff; }
.iiar-upload-progress { width: 100%; height: 20px; background-color: #f0f0f0; border-radius: var(--border-radius-sm); margin-top: var(--spacing-sm); }
.iiar-upload-progress__fill { height: 100%; background-color: var(--primary-color); border-radius: var(--border-radius-sm); transition: width 0.3s ease; text-align: center; line-height: 20px; color: #fff; font-size: 0.8rem; }
.iiar-coauthor-field { display: flex; gap: var(--spacing-sm); margin-bottom: var(--spacing-sm); }