/*
Theme Name: Paper Site Theme
Theme URI: https://example.com/
Author: Your Name
Author URI: https://example.com/
Description: A clean, professional, and readable theme designed for academic papers, analysis, and in-depth articles.
Version: 1.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: blog, one-column, two-columns, right-sidebar, custom-logo, responsive-layout, accessibility-ready
Text Domain: papersitetheme
*/

/*--------------------------------------------------------------
>>> TABLE OF CONTENTS:
----------------------------------------------------------------
1.0 - Global Design Principles & Core Styles
    1.1 - Variables (Colors & Fonts)
    1.2 - General Body & Content Styles
    1.3 - Headings
    1.4 - Links & Paragraphs
2.0 - Header & Navigation
    2.1 - Site Header
    2.2 - Site Title/Logo
    2.3 - Primary Navigation
3.0 - Homepage / Blog Post List (index.php)
    3.1 - Post Previews
    3.2 - Pagination
4.0 - Single Post View (single.php)
    4.1 - Layout (with Sidebar)
    4.2 - Content Styling
    4.3 - Comments Section
5.0 - Static Page View (page.php)
    5.1 - Page Content
    5.2 - Forms
6.0 - Search Functionality
    6.1 - Search Form
    6.2 - Search Results
7.0 - Widgets & Sidebar
8.0 - Footer
9.0 - Responsiveness / Media Queries
--------------------------------------------------------------*/

/*--------------------------------------------------------------
1.0 - Global Design Principles & Core Styles
--------------------------------------------------------------*/
:root {
    /* 1.1 - Variables */
    --primary-accent: #0A4C84;
    --secondary-accent: #F5F5F5;
    --text-body: #333333;
    --text-meta: #666666;
    --text-headings: #000000;
    --background-main: #FFFFFF;
    --background-light: #F9F9F9;

    --font-body: 'Merriweather', 'Lora', 'Georgia', serif;
    --font-headings: 'Open Sans', 'Roboto', 'Lato', sans-serif;
}

/* 1.2 - General Body & Content Styles */
body {
    font-family: var(--font-body);
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-body);
    background-color: var(--background-main);
    margin: 0;
    padding: 0;
}

.site-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.content-area {
    flex: 1;
    min-width: 0; /* Prevents flexbox overflow */
}

/* 1.3 - Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--text-headings);
    margin: 1.5rem 0 1rem 0;
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.4rem; }
h5 { font-size: 1.2rem; }
h6 { font-size: 1.1rem; }

/* 1.4 - Links & Paragraphs */
a {
    color: var(--primary-accent);
    text-decoration: none;
}

a:hover,
a:focus {
    text-decoration: underline;
}

p {
    margin-bottom: 1.5em;
}

/*--------------------------------------------------------------
2.0 - Header & Navigation
--------------------------------------------------------------*/
/* 2.1 - Site Header */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background-color: var(--background-main);
    border-bottom: 1px solid var(--secondary-accent);
}

/* 2.2 - Site Title/Logo */
.site-title a {
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-accent);
    text-decoration: none;
}

.custom-logo-link img {
    max-height: 60px;
    width: auto;
}

/* 2.3 - Primary Navigation */
.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.main-navigation li {
    margin-left: 1.5rem;
}

.main-navigation a {
    font-family: var(--font-headings);
    font-size: 1rem;
    color: var(--text-body);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.5rem 0;
    text-decoration: none;
    position: relative;
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a {
    color: var(--primary-accent);
}

/* Sub-menu styling */
.main-navigation ul ul {
    display: none;
    position: absolute;
    background-color: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    padding: 0.5rem 0;
    z-index: 1000;
}

.main-navigation ul li:hover > ul {
    display: block;
}

.main-navigation ul ul li {
    margin: 0;
}

.main-navigation ul ul a {
    display: block;
    padding: 0.5rem 1rem;
    width: 180px;
}

/*--------------------------------------------------------------
3.0 - Homepage / Blog Post List (index.php)
--------------------------------------------------------------*/
/* 3.1 - Post Previews */
.post {
    padding-bottom: 2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--secondary-accent);
}

.entry-title {
    margin-top: 0;
}

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

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

.entry-meta {
    font-size: 0.9rem;
    color: var(--text-meta);
    margin-bottom: 1rem;
    font-family: var(--font-headings);
}

.entry-meta a {
    color: var(--text-meta);
}
.entry-meta a:hover {
    color: var(--primary-accent);
}

.entry-content,
.entry-summary {
    margin-top: 1.5rem;
}

.read-more-link {
    display: inline-block;
    font-family: var(--font-headings);
    background-color: var(--primary-accent);
    color: #fff;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 3px;
    margin-top: 1rem;
}

.read-more-link:hover {
    background-color: #08406f;
    color: #fff;
    text-decoration: none;
}

/* 3.2 - Pagination */
.posts-navigation, .pagination {
    margin-top: 2rem;
    font-family: var(--font-headings);
}
.nav-links {
    display: flex;
    justify-content: space-between;
}

/*--------------------------------------------------------------
4.0 - Single Post View (single.php)
--------------------------------------------------------------*/
/* 4.1 - Layout (with Sidebar) */
#primary {
    display: flex;
    gap: 3rem;
}

.content-area {
    width: 70%;
}

#secondary.widget-area {
    width: 30%;
}


/* 4.2 - Content Styling */
.single .entry-title {
    text-align: left;
}

.single .entry-meta {
    text-align: left;
    border-bottom: 1px solid var(--secondary-accent);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

/* Paper Info Box */
.paper-info-box {
    background-color: var(--secondary-accent);
    border: 1px solid #ddd;
    border-left: 5px solid var(--primary-accent);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 3px;
}
.paper-info-box .paper-info-title {
    margin-top: 0;
    font-size: 1.4rem;
    color: var(--primary-accent);
}
.paper-info-box p {
    margin-bottom: 0.5em;
    font-size: 1rem;
}
.paper-info-box p:last-child {
    margin-bottom: 0;
}

.entry-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.5rem 0;
}

blockquote {
    margin: 1.5em 2em;
    padding: 1em 1.5em;
    border-left: 5px solid var(--primary-accent);
    background-color: var(--secondary-accent);
    font-style: italic;
}

.entry-content ul, .entry-content ol {
    padding-left: 1.5em;
}

pre, code, kbd, samp {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.95em;
}
pre {
    background: var(--secondary-accent);
    padding: 1.5rem;
    overflow: auto;
    margin-bottom: 1.5rem;
    border: 1px solid #ddd;
}

/* Social Sharing Links */
.social-sharing {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--secondary-accent);
}
.social-sharing h4 {
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
}
.social-sharing a {
    display: inline-block;
    margin-right: 1rem;
    background-color: var(--primary-accent);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 3px;
    text-decoration: none;
    font-family: var(--font-headings);
    font-size: 0.9rem;
}
.social-sharing a:hover {
    background-color: #08406f;
    color: #fff;
}

/* 4.3 - Comments Section */
.comments-area {
    margin-top: 3rem;
    border-top: 1px solid var(--secondary-accent);
    padding-top: 2rem;
}
.comment-list {
    list-style: none;
    padding: 0;
}
.comment-body {
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 3px;
}
.comment-form input, .comment-form textarea {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
}
.comment-form .submit {
    width: auto;
    background: var(--primary-accent);
    color: #fff;
    border: 0;
    cursor: pointer;
}
.comment-form .submit:hover {
    background-color: #08406f;
}


/*--------------------------------------------------------------
5.0 - Static Page View (page.php)
--------------------------------------------------------------*/
/* 5.1 - Page Content - Uses general content styling */
.page .entry-header {
    border-bottom: 1px solid var(--secondary-accent);
    margin-bottom: 2rem;
}


/* 5.2 - Forms */
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
input[type="search"],
textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    font-family: var(--font-body);
    font-size: 1rem;
    border-radius: 3px;
}

button, input[type="button"], input[type="reset"], input[type="submit"] {
    background-color: var(--primary-accent);
    color: white;
    border: 0;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-headings);
    font-size: 1rem;
    cursor: pointer;
    border-radius: 3px;
    text-decoration: none;
}

button:hover, input[type="button"]:hover, input[type="reset"]:hover, input[type="submit"]:hover {
    background-color: #08406f;
    color: white;
}


/*--------------------------------------------------------------
6.0 - Search Functionality
--------------------------------------------------------------*/
/* 6.1 - Search Form */
.search-form {
    display: flex;
}
.search-form label {
    flex-grow: 1;
}
.search-field {
    width: 100%;
}
.search-submit {
    border-radius: 0 3px 3px 0;
}

/* 6.2 - Search Results */
.search-results .page-title {
    margin-bottom: 2rem;
}


/*--------------------------------------------------------------
7.0 - Widgets & Sidebar
--------------------------------------------------------------*/
.widget-area .widget {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--secondary-accent);
    border-radius: 3px;
}
.widget-area .widget-title {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    border-bottom: 2px solid var(--primary-accent);
    padding-bottom: 0.5rem;
}
.widget-area .widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.widget-area .widget ul li {
    margin-bottom: 0.5rem;
}


/*--------------------------------------------------------------
8.0 - Footer
--------------------------------------------------------------*/
.site-footer {
    margin-top: 2rem;
    padding: 2rem;
    background-color: var(--text-body);
    color: #fff;
    text-align: center;
    font-size: 0.9rem;
}
.site-footer a {
    color: #fff;
    text-decoration: underline;
}


/*--------------------------------------------------------------
9.0 - Responsiveness / Media Queries
--------------------------------------------------------------*/
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    h3 { font-size: 1.5rem; }

    .site-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .site-title {
        margin-bottom: 1rem;
    }

    .main-navigation ul {
        flex-direction: column;
        align-items: center;
    }

    .main-navigation li {
        margin: 0.5rem 0;
    }
    
    #primary {
        flex-direction: column;
    }

    .content-area,
    #secondary.widget-area {
        width: 100%;
    }
    
    .site-content {
        padding: 1rem;
    }
}

.menu-toggle {
    display: none;
}

@media (max-width: 600px) {
    .main-navigation ul {
        display: none;
    }
    .main-navigation.toggled-on > ul {
        display: flex; /* This will be a column from the above media query */
    }
    .menu-toggle {
        display: block;
        background: none;
        border: 1px solid var(--text-body);
        color: var(--text-body);
        padding: 0.5rem 1rem;
        cursor: pointer;
        align-self: flex-end; /* Position it on the right in the flex column */
        margin-top: -3.5rem; /* Adjust based on header layout */
    }
}