/*
 * Modern Flat Design for Doxygen
 * A clean, modern stylesheet for cgrapht documentation
 */

/* ========================================================================
   Modern Color Palette
   ======================================================================== */
:root {
    --primary-color: #2563eb;        /* Modern blue */
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --accent-color: #10b981;         /* Modern green */
    --background: #ffffff;
    --background-alt: #f8fafc;
    --surface: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --code-background: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

/* ========================================================================
   Base Styles - Clean Typography
   ======================================================================== */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background-alt);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* ========================================================================
   Header - Modern Flat Navigation
   ======================================================================== */
#top {
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

#titlearea {
    background: transparent;
    border: none;
    padding: 1.5rem 0;
}

#projectlogo img {
    height: 48px;
    width: auto;
    margin-right: 1rem;
    vertical-align: middle;
}

#projectname {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

#projectbrief {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

#projectnumber {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Navigation Tabs */
.tabs, .tabs2, .tabs3 {
    background: transparent;
    border: none;
    box-shadow: none;
}

.tablist {
    margin: 0;
    padding: 0;
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.tablist li {
    display: inline-block;
    margin: 0;
}

.tablist a {
    display: block;
    padding: 0.75rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;   /* overlap tablist's bottom border so active tab covers it */
    transition: all 0.2s ease;
    background: transparent;
}

.tablist a:hover {
    color: var(--primary-color);
    background: var(--background-alt);
    border-bottom-color: var(--primary-light);
}

.tablist li.current a {
    color: var(--primary-color);
    background: transparent;
    border-bottom-color: var(--primary-color);
}

/* ========================================================================
   Sidebar - Clean Tree View
   ======================================================================== */
#side-nav {
    background: var(--surface);
    /* No padding here — JS measures outerWidth() of this element to set the sidebar width.
       Extra padding inflates outerWidth() and causes the sidebar to grow on each refresh. */
}

.ui-resizable-e {
    background: var(--border-color);
    width: 1px;
}

#nav-tree {
    background: transparent;
    padding: 0.5rem;
}

#nav-tree .item {
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: all 0.15s ease;
}

#nav-tree .item a {
    color: var(--text-secondary);
    text-decoration: none;
}

#nav-tree .item:hover {
    background: var(--background-alt);
    color: var(--primary-color);
}

#nav-tree .item:hover a {
    color: var(--primary-color);
}

#nav-tree .selected,
#nav-tree .selected a {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* ========================================================================
   Content Area - Modern Cards
   ======================================================================== */
#doc-content {
    background: var(--background-alt);
    padding: 2rem;
}

.contents {
    background: var(--surface);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-sm);
    max-width: 1200px;
}

/* Headers */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.25rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h2 {
    font-size: 1.875rem;
}

h3 {
    font-size: 1.5rem;
}

/* Page title bar — Doxygen defaults this to a dark background via --header-background-color;
   override the variable AND use div.header to beat Doxygen's specificity */
div.header {
    background: var(--background-alt) !important;
    border-bottom: none;
    padding: 1.5rem 2rem;
}

div.headertitle {
    padding: 0;
}

.title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    border: none;
    padding: 0;
    margin: 0;
}

/* ========================================================================
   Code Blocks - Modern Syntax Highlighting
   ======================================================================== */
pre.fragment, div.fragment {
    background: var(--code-background);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.25rem;
    margin: 1rem 0;
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

code {
    background: var(--code-background);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
    font-size: 0.875em;
    color: var(--text-primary);
}

.line {
    color: var(--text-primary);
    line-height: 1.5;
}

/* Syntax highlighting */
.keyword { color: #d73a49; font-weight: 600; }
.keywordtype { color: #005cc5; font-weight: 600; }
.keywordflow { color: #d73a49; font-weight: 600; }
.comment { color: #6a737d; font-style: italic; }
.preprocessor { color: #005cc5; }
.stringliteral { color: #032f62; }

/* ========================================================================
   Tables - Clean Design
   ======================================================================== */
table.memberdecls, table.fieldtable {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    border-collapse: separate;   /* required for border-radius to work on table */
    border-spacing: 0;
    box-shadow: var(--shadow-sm);
    width: 100%;
}

/* Round the four corner cells so the table border-radius shows */
table.memberdecls tr:first-child td:first-child,
table.fieldtable tr:first-child td:first-child { border-top-left-radius: 0.5rem; }
table.memberdecls tr:first-child td:last-child,
table.fieldtable tr:first-child td:last-child  { border-top-right-radius: 0.5rem; }
table.memberdecls tr:last-child td:first-child,
table.fieldtable tr:last-child td:first-child  { border-bottom-left-radius: 0.5rem; }
table.memberdecls tr:last-child td:last-child,
table.fieldtable tr:last-child td:last-child   { border-bottom-right-radius: 0.5rem; }

.memberdecls td, .fieldtable td {
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
}

.memberdecls tr:last-child td,
.fieldtable tr:last-child td {
    border-bottom: none;
}

.memberdecls tr:hover,
.fieldtable tr:hover {
    background: var(--background-alt);
}

.memItemLeft, .memItemRight, .memTemplItemLeft, .memTemplItemRight {
    background: transparent;
}

/* Kill the gradient Doxygen puts on member-separator rows */
td.memSeparator {
    background: var(--border-color);
    height: 1px;
    padding: 0;
}

/* ========================================================================
   Member Documentation - Card Style
   ======================================================================== */
.memitem {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

/* Flatten the tab label above each member block */
.memtitle {
    background: var(--background-alt);
    box-shadow: none;
    border-color: var(--border-color);
}

.memtitle::after {
    background: var(--background-alt);  /* must match memproto so the tab blends in */
}

.memproto {
    background: var(--background-alt);
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem;
    font-weight: 500;
}

.memdoc {
    background: var(--surface);
    border: none;
    padding: 1.5rem;
}

.memname {
    color: var(--primary-color);
    font-weight: 600;
}

.paramname {
    color: var(--accent-color);
    font-weight: 500;
}

/* ========================================================================
   Buttons & Links - Modern Style
   ======================================================================== */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

a.el {
    font-weight: 500;
}

/* ========================================================================
   Search Box - Modern Input
   ======================================================================== */
#MSearchBox {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.5rem;
}

#MSearchField {
    background: var(--background-alt);
    border: none;
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-size: 0.875rem;
}

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

/* ========================================================================
   Badges & Labels - Flat Design
   ======================================================================== */
.mlabel {
    background: var(--primary-color);
    color: white;
    border-radius: 0.25rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: none;
    border: none;
}

.mlabels-right {
    display: flex;
    gap: 0.5rem;
}

/* ========================================================================
   Directory/File Lists - Clean Cards
   ======================================================================== */
.directory {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    overflow: hidden;
}

.directory tr {
    border-bottom: 1px solid var(--border-color);
}

.directory tr:last-child {
    border-bottom: none;
}

.directory tr:hover {
    background: var(--background-alt);
}

.directory .icon {
    color: var(--primary-color);
}

/* ========================================================================
   Section Headers - Flat (replaces Doxygen's box-shadow line trick)
   ======================================================================== */
h2.groupheader,
td h2.groupheader {
    box-shadow: none;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.4rem;
    color: var(--text-primary);
    font-weight: 600;
}

/* ========================================================================
   Footer - Minimal
   ======================================================================== */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: 1.5rem;
    text-align: center;
}

/* ========================================================================
   Responsive Design
   ======================================================================== */
@media (max-width: 768px) {
    #doc-content {
        padding: 1rem;
    }
    
    .contents {
        padding: 1rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
}

/* ========================================================================
   Dark Mode Support (Optional)
   ======================================================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #3b82f6;
        --primary-dark: #2563eb;
        --primary-light: #60a5fa;
        --accent-color: #10b981;
        --background: #0f172a;
        --background-alt: #1e293b;
        --surface: #263248;   /* distinct from background-alt so cards are visible */
        --text-primary: #f1f5f9;
        --text-secondary: #94a3b8;
        --border-color: #334155;
        --code-background: #0f172a;
    }
    
    .keyword { color: #ff7b72; }
    .keywordtype { color: #79c0ff; }
    .keywordflow { color: #ff7b72; }
    .comment { color: #8b949e; }
    .preprocessor { color: #79c0ff; }
    .stringliteral { color: #a5d6ff; }
}

/* ========================================================================
   Utility Classes
   ======================================================================== */
.center {
    text-align: center;
}

.textblock {
    margin: 1rem 0;
    line-height: 1.7;
}

hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}

/* ========================================================================
   Graph/Diagram Improvements
   ======================================================================== */
.dotgraph {
    text-align: center;
    margin: 2rem 0;
}

.dyncontent {
    margin: 1rem 0;
}