/* 
 * ZX Spectrum Theme for BSSG
 * Bold colors with black background inspired by the iconic home computer
 * 
 * IMPROVEMENTS APPLIED:
 * - Added comprehensive reduced motion support
 * - Enhanced accessibility with focus outlines
 * - Removed external font loading for better performance and text browser compatibility
 * - Enhanced font fallbacks with comprehensive system font stacks
 * - Added text browser fallbacks for decorative elements
 * - Optimized performance while maintaining authentic ZX Spectrum aesthetics
 */

/* REDUCED MOTION SUPPORT - Disable animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
        transform: none !important;
    }
    
    /* Disable ZX Spectrum-specific animations */
    .site-title a {
        animation: none !important;
    }
    
    /* Disable pixel overlay effect for reduced motion */
    body::before {
        display: none !important;
    }
}

:root {
    /* ZX Spectrum color palette */
    --black: #000000;
    --blue: #0000d8;
    --red: #d80000;
    --magenta: #d800d8;
    --green: #00d800;
    --cyan: #00d8d8;
    --yellow: #d8d800;
    --white: #d8d8d8;
    --bright-blue: #0000ff;
    --bright-red: #ff0000;
    --bright-magenta: #ff00ff;
    --bright-green: #00ff00;
    --bright-cyan: #00ffff;
    --bright-yellow: #ffff00;
    --bright-white: #ffffff;
    
    /* Theme color assignments */
    --bg-color: var(--black);
    --text-color: var(--white);
    --header-color: var(--bright-cyan);
    --link-color: var(--bright-yellow);
    --link-visited: var(--yellow);
    --border-color: var(--cyan);
    --highlight-color: var(--blue);
    --accent-color: var(--bright-cyan);
    --accent-secondary: var(--bright-magenta);
    --quote-bg: var(--black);
    
    /* Typography - Enhanced font fallbacks for ZX Spectrum look */
    --font-main: 'Courier New', 'Monaco', 'Menlo', 'Consolas', 'Liberation Mono', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace;
    --font-headings: 'Courier New', 'Monaco', 'Menlo', 'Consolas', 'Liberation Mono', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace;
    --font-mono: 'Courier New', 'Monaco', 'Menlo', 'Consolas', 'Liberation Mono', 'DejaVu Sans Mono', 'Bitstream Vera Sans Mono', monospace;
    
    /* Sizing and spacing system */
    --content-width: 820px;
    --spacing-xs: 0.375rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.25rem;
    --spacing-lg: 1.75rem;
    --spacing-xl: 2.5rem;
    --spacing-xxl: 3.5rem;
    
    /* Typography sizing */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 1.75rem;
    
    /* Line heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.4;
    --line-height-loose: 1.6;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
    
    /* Border width */
    --border-thin: 1px;
    --border-normal: 2px;
    --border-thick: 4px;
}



body, input, button, select, textarea {
    font-family: var(--font-main);
}

/* Base elements */
body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: var(--spacing-md);
    line-height: var(--line-height-normal);
    text-shadow: 0 0 2px var(--text-color);
}

/* Pixel effect overlay */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
    background-size: 100% 4px;
    z-index: 2;
    pointer-events: none;
}

/* Container styling */
.container {
    max-width: var(--content-width);
    margin: 0 auto;
    border: var(--border-normal) solid var(--border-color);
    padding: var(--spacing-sm);
    position: relative;
    box-shadow: 0 0 var(--spacing-md) rgba(0, 215, 215, 0.3);
}

/* ZX Spectrum header with border */
header {
    border-bottom: var(--border-normal) solid var(--bright-cyan);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    color: var(--bright-white);
}

header h1 {
    font-size: var(--font-size-xl);
    margin: 0 0 var(--spacing-xs) 0;
    color: var(--bright-cyan);
}

/* Site title with ZX Spectrum flashing effect */
.site-title {
    font-size: var(--font-size-xl);
    margin: 0;
    padding: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.site-title a {
    color: var(--bright-cyan);
    text-decoration: none;
    display: inline-block;
    transition: color var(--transition-normal), text-shadow var(--transition-normal);
    text-shadow: 0 0 3px var(--bright-cyan);
    animation: border-color-change 4s infinite alternate;
}

.site-title a:hover {
    color: var(--bright-white);
    background-color: transparent;
    text-shadow: 0 0 8px var(--bright-white), 0 0 15px var(--bright-cyan);
}

/* ACCESSIBILITY: Focus states for site title */
.site-title a:focus {
    outline: 2px solid var(--bright-white);
    outline-offset: 2px;
    color: var(--bright-white);
    text-shadow: 0 0 8px var(--bright-white), 0 0 15px var(--bright-cyan);
}

/* Navigation with ZX Spectrum colors */
nav {
    margin: var(--spacing-md) 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

nav a {
    color: var(--black);
    background-color: var(--bright-yellow);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    border: var(--border-thin) solid var(--bright-white);
    transition: all var(--transition-fast);
    box-sizing: border-box;
}

nav a:hover, nav a:focus {
    background-color: var(--bright-cyan);
    transform: translateY(-2px);
    box-shadow: 0 2px 0 var(--bright-white);
}

/* Selected menu item */
nav a.active {
    background-color: var(--bright-magenta);
    color: var(--bright-white);
    position: relative;
}

nav a.active::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 2px;
    background-color: var(--bright-white);
}

/* Content area */
main {
    min-height: 300px;
    padding: var(--spacing-xs) 0;
}

/* Typography with ZX Spectrum style */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--header-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    line-height: var(--line-height-tight);
}

h1 {
    font-size: var(--font-size-xl);
    color: var(--bright-cyan);
    margin-top: var(--spacing-lg);
}

h2 {
    font-size: var(--font-size-lg);
    color: var(--bright-yellow);
    position: relative;
    padding-left: var(--spacing-sm);
}

h2::before {
    content: ">";
    position: absolute;
    left: 0;
    color: var(--bright-yellow);
}

h3 {
    font-size: var(--font-size-md);
    color: var(--bright-green);
}

p {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-normal);
}

/* Links */
a {
    color: var(--link-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

a:visited {
    color: var(--link-visited);
}

a:hover {
    color: var(--bright-white);
    background-color: var(--blue);
    text-shadow: 0 0 4px var(--bright-white);
}

/* ACCESSIBILITY: Focus states for general links */
a:focus {
    outline: 2px solid var(--bright-yellow);
    outline-offset: 2px;
    color: var(--bright-white);
    background-color: var(--blue);
    text-shadow: 0 0 4px var(--bright-white);
}

/* Articles with ZX Spectrum border */
article {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    border: var(--border-normal) solid var(--bright-blue);
    position: relative;
    transition: border-color var(--transition-normal);
}

article:hover {
    border-color: var(--bright-cyan);
}

article:last-child {
    margin-bottom: 0;
}

article .meta {
    font-size: var(--font-size-sm);
    color: var(--bright-green);
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    border-bottom: 1px dashed var(--bright-blue);
    padding-bottom: var(--spacing-sm);
}

.reading-time {
    color: var(--bright-green);
    display: inline-flex;
    align-items: center;
}

.reading-time::before {
    content: "T:";
    margin-right: var(--spacing-xs);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tags a {
    color: var(--black);
    background-color: var(--cyan);
    padding: 2px 5px;
    font-size: var(--font-size-xs);
    text-decoration: none;
    border: 1px solid var(--bright-cyan);
    transition: all var(--transition-fast);
}

.tags a:hover {
    background-color: var(--bright-cyan);
    transform: translateY(-2px);
}

/* ACCESSIBILITY: Focus states for tags */
.tags a:focus {
    outline: 2px solid var(--bright-yellow);
    outline-offset: 2px;
    background-color: var(--bright-cyan);
    transform: translateY(-2px);
}

code {
    font-family: var(--font-mono);
    background-color: var(--blue);
    color: var(--bright-white);
    padding: 2px 4px;
}

pre {
    background-color: var(--blue);
    color: var(--bright-white);
    padding: var(--spacing-sm);
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    border-left: var(--border-normal) solid var(--bright-blue);
}

pre code {
    background-color: transparent;
    padding: 0;
}

img {
    max-width: 100%;
    height: auto;
    border: var(--border-normal) solid var(--bright-magenta);
    image-rendering: pixelated;
    display: block;
    margin: var(--spacing-md) auto;
}

/* Footer with ZX Spectrum border */
footer {
    border-top: var(--border-normal) solid var(--bright-yellow);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--bright-white);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Pagination in ZX Spectrum style */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: var(--spacing-lg) 0;
    gap: var(--spacing-sm);
}

.pagination a {
    color: var(--black);
    background-color: var(--bright-yellow);
    padding: var(--spacing-xs) var(--spacing-sm);
    text-decoration: none;
    border: var(--border-thin) solid var(--bright-white);
    transition: all var(--transition-fast);
}

.pagination a:hover {
    background-color: var(--bright-cyan);
    transform: translateY(-2px);
}

/* ACCESSIBILITY: Focus states for pagination */
.pagination a:focus {
    outline: 2px solid var(--bright-yellow);
    outline-offset: 2px;
    background-color: var(--bright-cyan);
    transform: translateY(-2px);
}

.pagination .page-info {
    color: var(--bright-white);
    background-color: var(--blue);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: var(--border-thin) solid var(--bright-blue);
}

/* Loading animation with ZX Spectrum border effect */
@keyframes border-color-change {
    0% { border-color: var(--bright-blue); }
    20% { border-color: var(--bright-red); }
    40% { border-color: var(--bright-magenta); }
    60% { border-color: var(--bright-green); }
    80% { border-color: var(--bright-cyan); }
    100% { border-color: var(--bright-blue); }
}

.zx-loading {
    border: var(--border-normal) solid var(--bright-blue);
    animation: border-color-change 2s infinite;
    padding: var(--spacing-sm);
    text-align: center;
    margin: var(--spacing-md) 0;
}

/* Media query for responsive design */
@media (max-width: 768px) {
    .container {
        margin: var(--spacing-sm);
        width: auto;
        padding: var(--spacing-xs);
    }
    
    nav {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        box-sizing: border-box;
    }
    
    nav a {
        margin: var(--spacing-xs) 0;
        width: 100%;
        text-align: center;
        box-sizing: border-box;
        max-width: 100%;
    }
    
    footer {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .pagination {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    body {
        padding: var(--spacing-xs);
    }
    
    .container {
        margin: var(--spacing-xs);
        padding: var(--spacing-xs);
    }
    
    nav a {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-xs);
    }
}

/* Featured Images with ZX Spectrum styling */
.featured-image {
    margin: var(--spacing-lg) 0;
    border: var(--border-normal) solid var(--bright-cyan);
    padding: var(--spacing-xs);
    background-color: var(--black);
    position: relative;
    image-rendering: pixelated;
    box-shadow: 0 0 var(--spacing-md) rgba(0, 255, 255, 0.2);
}

.featured-image::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 3px);
    background-size: 100% 6px;
    background-repeat: repeat;
    pointer-events: none;
    z-index: 1;
}

.featured-image img {
    width: 100%;
    height: auto;
    display: block;
    image-rendering: pixelated;
    border: var(--border-thin) solid var(--bright-blue);
    margin: 0;
}

.featured-image .image-caption {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs);
    color: var(--bright-white);
    text-align: center;
    background-color: var(--blue);
    border: var(--border-thin) solid var(--bright-blue);
    font-size: var(--font-size-sm);
}

.index-image {
    margin-bottom: var(--spacing-md);
    border: var(--border-normal) solid var(--bright-yellow);
    padding: var(--spacing-xs);
    background-color: var(--black);
    image-rendering: pixelated;
    transition: transform var(--transition-normal);
}

.index-image:hover {
    transform: scale(1.02);
}

.index-image img {
    width: 100%;
    height: auto;
    display: block;
    image-rendering: pixelated;
    border: var(--border-thin) solid var(--yellow);
    margin: 0;
}

.tag-image {
    margin-bottom: var(--spacing-md);
    border: var(--border-normal) solid var(--bright-green);
    padding: var(--spacing-xs);
    background-color: var(--black);
    image-rendering: pixelated;
    transition: transform var(--transition-normal);
}

.tag-image:hover {
    transform: scale(1.02);
}

.tag-image img {
    width: 100%;
    height: auto;
    display: block;
    image-rendering: pixelated;
    border: var(--border-thin) solid var(--green);
    margin: 0;
}

.archive-image {
    margin-bottom: var(--spacing-md);
    border: var(--border-normal) solid var(--bright-magenta);
    padding: var(--spacing-xs);
    background-color: var(--black);
    image-rendering: pixelated;
    transition: transform var(--transition-normal);
}

.archive-image:hover {
    transform: scale(1.02);
}

.archive-image img {
    width: 100%;
    height: auto;
    display: block;
    image-rendering: pixelated;
    border: var(--border-thin) solid var(--magenta);
    margin: 0;
}

/* Selection styling */
::selection {
    background-color: var(--bright-blue);
    color: var(--bright-white);
    text-shadow: none;
}

/* Date header with ZX Spectrum styling */
.date-header {
    font-family: var(--font-headings);
    font-weight: normal;
    color: var(--black);
    background-color: var(--bright-green);
    margin: var(--spacing-lg) 0 var(--spacing-md) 0;
    font-size: var(--font-size-base);
    display: inline-block;
    position: relative;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: var(--border-normal) solid var(--bright-white);
    text-transform: uppercase;
    box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.3);
}

/* Blockquote styling */
blockquote {
    border-left: var(--border-normal) solid var(--bright-cyan);
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-md) 0;
    background-color: rgba(0, 0, 210, 0.2);
    color: var(--bright-white);
}

/* List styling */
ul, ol {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

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