/**
 * Al-Maqayis Journal - Springer Nature Inspired Style
 * Custom CSS for OJS 3.x
 * Based on Springer Nature Link Design System
 * Author: Custom Design for UIN Antasari
 * Note: Header and Masthead styles have been removed as requested.
 */

/* ============================================
   1. ROOT VARIABLES & COLOR SYSTEM
   ============================================ */
:root {
    /* Primary Colors - Springer Nature Palette */
    --color-primary: #003366;
    --color-primary-light: #0055a5;
    --color-primary-dark: #002244;
    
    /* Secondary Colors */
    --color-secondary: #c75301;
    --color-secondary-light: #ff6a00;
    
    /* Neutral Colors */
    --color-text: #222222;
    --color-text-light: #666666;
    --color-text-lighter: #999999;
    --color-bg: #ffffff;
    --color-bg-light: #f5f5f5;
    --color-bg-lighter: #fafafa;
    --color-border: #e0e0e0;
    --color-border-light: #eeeeee;
    
    /* Status Colors */
    --color-success: #00a69d;
    --color-warning: #ff9800;
    --color-error: #d32f2f;
    --color-info: #2196f3;
    
    /* Open Access Color */
    --color-oa: #00a69d;
    
    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-heading: "Merriweather", Georgia, serif;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-md: 1.125rem;     /* 18px */
    --font-size-lg: 1.25rem;      /* 20px */
    --font-size-xl: 1.5rem;       /* 24px */
    --font-size-2xl: 2rem;        /* 32px */
    --font-size-3xl: 2.5rem;      /* 40px */
    
    /* Spacing */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */
    
    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 8px 16px rgba(0, 0, 0, 0.2);
    
    /* Layout */
    --container-max-width: 1200px;
    --sidebar-width: 300px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */
* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    margin: 0;
    padding: 0;
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    line-height: 1.3;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    color: var(--color-text);
}

h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: var(--font-size-2xl);
}

h3 {
    font-size: var(--font-size-xl);
}

h4 {
    font-size: var(--font-size-lg);
}

h5 {
    font-size: var(--font-size-md);
}

h6 {
    font-size: var(--font-size-base);
}

p {
    margin-top: 0;
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
    text-decoration: underline;
}

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

/* ============================================
   (Header Sections Removed)
   ============================================ */
.pkp_page_index .pkp_structure_content {
    padding-top: 0;
}

/* ============================================
   6. BUTTONS
   ============================================ */
.btn,
.pkp_button,
button[type="submit"],
input[type="submit"],
.cmp_button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

/* Primary Button */
.btn-primary,
.pkp_button--is_primary {
    background-color: var(--color-secondary);
    color: white;
    border-color: var(--color-secondary);
}

.btn-primary:hover {
    background-color: var(--color-secondary-light);
    border-color: var(--color-secondary-light);
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Secondary Button */
.btn-secondary,
.pkp_button--is_link {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
}

/* White Button (for dark backgrounds) */
.btn-white {
    background-color: white;
    color: var(--color-primary);
    border-color: white;
}

.btn-white:hover {
    background-color: var(--color-bg-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   7. ARTICLE CARDS / LISTING
   ============================================ */
.obj_article_summary {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
}

.obj_article_summary:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* Article Title */
.obj_article_summary .title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.obj_article_summary .title a {
    color: var(--color-text);
    text-decoration: none;
}

.obj_article_summary .title a:hover {
    color: var(--color-primary);
}

/* Article Meta */
.obj_article_summary .meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.obj_article_summary .meta .type {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

/* Open Access Badge */
.obj_article_summary .open-access {
    background-color: var(--color-oa);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
}

/* Authors */
.obj_article_summary .authors {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.obj_article_summary .authors a {
    color: var(--color-text-light);
}

/* Abstract */
.obj_article_summary .abstract {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

/* Article Image/Thumbnail */
.obj_article_summary .cover {
    float: right;
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    max-width: 200px;
}

.obj_article_summary .cover img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* ============================================
   8. SIDEBAR
   ============================================ */
.pkp_structure_sidebar {
    background-color: var(--color-bg);
}

.pkp_block {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.pkp_block h2,
.pkp_block .title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
    color: var(--color-text);
}

.pkp_block ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pkp_block li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.pkp_block li:last-child {
    border-bottom: none;
}

/* ============================================
   9. ISSUE LISTING
   ============================================ */
.obj_issue_toc {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.obj_issue_toc .heading {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
}

.obj_issue_toc .cover {
    flex: 0 0 auto;
}

.obj_issue_toc .cover img {
    max-width: 150px;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.obj_issue_toc .heading .title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

/* Section Headers */
.obj_issue_toc .section {
    margin-bottom: var(--spacing-2xl);
}

.obj_issue_toc .section .title {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

/* ============================================
   10. FORMS
   ============================================ */
.pkp_form {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.pkp_form label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.pkp_form input[type="text"],
.pkp_form input[type="email"],
.pkp_form input[type="password"],
.pkp_form input[type="url"],
.pkp_form input[type="search"],
.pkp_form textarea,
.pkp_form select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text);
    background-color: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
}

.pkp_form input:focus,
.pkp_form textarea:focus,
.pkp_form select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 51, 102, 0.1);
}

.pkp_form .description {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

/* ============================================
   11. TABLES
   ============================================ */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-lg);
}

thead {
    background-color: var(--color-bg-light);
}

th {
    padding: var(--spacing-md);
    text-align: left;
    font-weight: 600;
    color: var(--color-text);
    border-bottom: 2px solid var(--color-border);
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
}

tbody tr:hover {
    background-color: var(--color-bg-lighter);
}

/* ============================================
   12. BADGES & LABELS
   ============================================ */
.badge,
.label {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    border-radius: var(--radius-sm);
}

.badge-oa,
.badge-open-access {
    background-color: var(--color-oa);
    color: white;
}

.badge-published {
    background-color: var(--color-success);
    color: white;
}

.badge-review {
    background-color: var(--color-warning);
    color: white;
}

/* ============================================
   13. PAGINATION
   ============================================ */
.cmp_pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-2xl) 0;
}

.cmp_pagination a,
.cmp_pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.cmp_pagination a:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.cmp_pagination .current {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ============================================
   14. BREADCRUMBS
   ============================================ */
.pkp_structure_breadcrumb {
    background-color: var(--color-bg-light);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
}

.pkp_structure_breadcrumb ol {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.pkp_structure_breadcrumb li {
    display: flex;
    align-items: center;
}

.pkp_structure_breadcrumb li:not(:last-child)::after {
    content: "›";
    margin-left: var(--spacing-sm);
    color: var(--color-text-light);
}

.pkp_structure_breadcrumb a {
    color: var(--color-text-light);
    text-decoration: none;
}

.pkp_structure_breadcrumb a:hover {
    color: var(--color-primary);
}

/* ============================================
   15. FOOTER
   ============================================ */
.pkp_structure_footer {
    background-color: var(--color-primary-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.pkp_structure_footer_wrapper {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.pkp_structure_footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.pkp_structure_footer a:hover {
    color: white;
}

/* Footer Grid */
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
    color: white;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

/* Copyright */
.footer-copyright {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

/* ============================================
   16. ALERTS & NOTIFICATIONS
   ============================================ */
.pkp_notification,
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
}

.pkp_notification.success,
.alert-success {
    background-color: #e8f5e9;
    border-color: var(--color-success);
    color: #2e7d32;
}

.pkp_notification.warning,
.alert-warning {
    background-color: #fff3e0;
    border-color: var(--color-warning);
    color: #e65100;
}

.pkp_notification.error,
.alert-error {
    background-color: #ffebee;
    border-color: var(--color-error);
    color: #c62828;
}

.pkp_notification.info,
.alert-info {
    background-color: #e3f2fd;
    border-color: var(--color-info);
    color: #1565c0;
}

/* ============================================
   17. ARTICLE PAGE SPECIFIC
   ============================================ */
.obj_article_details {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
}

/* Article Header */
.article-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--color-border);
}

.article-header h1 {
    font-size: var(--font-size-3xl);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

/* Article Meta Information */
.article-meta {
    display: grid;
    gap: var(--spacing-lg);
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.article-meta-item {
    display: flex;
    gap: var(--spacing-sm);
}

.article-meta-item .label {
    font-weight: 600;
    color: var(--color-text-light);
}

/* Article Galleys/Downloads */
.article-galleys {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.galley-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-secondary);
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.galley-link:hover {
    background-color: var(--color-secondary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Citations */
.article-citation {
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
    font-family: monospace;
    font-size: var(--font-size-sm);
    margin: var(--spacing-xl) 0;
}

/* ============================================
   18. RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --container-max-width: 100%;
        --sidebar-width: 250px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.25rem;
    }
    
    .obj_article_summary .cover {
        float: none;
        margin: 0 0 var(--spacing-md) 0;
        max-width: 100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .pkp_structure_footer_wrapper {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .obj_article_summary {
        padding: var(--spacing-md);
    }
    
    .btn,
    .pkp_button {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   19. PRINT STYLES
   ============================================ */
@media print {
    .pkp_structure_sidebar,
    .pkp_structure_footer,
    .btn,
    button {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: black;
    }
    
    a {
        text-decoration: underline;
        color: black;
    }
    
    .obj_article_details {
        border: none;
        box-shadow: none;
    }
}

/* ============================================
   20. UTILITIES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

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

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

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --color-border: #000;
        --color-text-light: #000;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   22. CUSTOM HOMEPAGE SECTIONS
   ============================================ */
.homepage-section {
    margin-bottom: var(--spacing-3xl);
}

.homepage-section-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--color-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.stat-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}