/* 
 * Terminal Theme for BSSG
 * Old-school terminal/command-line inspired styling
 */

:root {
    /* Terminal color scheme */
    --bg-color: #0d0d0d;
    --text-color: #33ff33;  /* Classic green terminal text */
    --dim-color: #00cc00;   /* Dimmer green for secondary elements */
    --highlight-color: #ffffff; /* White highlight */
    --header-color: #33ff33;
    --link-color: #3399ff;
    --link-visited: #cc99ff;
    --border-color: #33ff33;
    --command-prompt: #33ff33;
    --command-text: #ffffff;
    --error-color: #ff3333;
    --warning-color: #ffcc00;
    --success-color: #33ff33;
    
    /* Title gradient colors */
    --title-gradient-start: #33ff33;  /* Bright terminal green */
    --title-gradient-end: #00cc00;  /* Darker terminal green */
    
    /* Typography - System monospace fonts for terminal aesthetic */
    --font-main: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Monaco, 'Courier New', monospace;
    --font-headings: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Monaco, 'Courier New', monospace;
    --font-mono: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, Monaco, 'Courier New', monospace;
    
    /* Sizing */
    --content-width: 800px;
    --cursor-blink: 1s;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 2.5rem;
    
    /* Line heights */
    --line-height-normal: 1.5;
    --line-height-tight: 1.2;
    
    /* Font sizes */
    --text-sm: 0.9rem;
    --text-md: 1rem;
    --text-lg: 1.1rem;
    --text-xl: 1.3rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.8rem;
    
    /* Transitions */
    --transition-normal: 0.3s ease;
}

/* Removed external font loading for better performance and text browser compatibility */

/* Reduced motion support */
@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;
    }
    
    /* Disable all transforms and animations */
    .site-title a:hover,
    .featured-image:hover img,
    .index-image:hover img,
    .tag-image:hover img,
    .archive-image:hover img,
    .pagination a:hover {
        transform: none !important;
    }
    
    @keyframes flicker {
        from, to { opacity: 1; }
    }
    
    @keyframes blink {
        from, to { opacity: 1; }
    }
    
    main::after {
        animation: none !important;
    }
}

/* Base elements */
html {
    font-size: 16px;
    background-color: var(--bg-color);
    scrollbar-color: var(--text-color) var(--bg-color);
}

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);
    cursor: text;
    text-shadow: 0 0 5px rgba(51, 255, 51, 0.3);
}

body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%);
    background-size: 100% 4px;
    z-index: 1000;
    opacity: 0.15;
}

body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0) 0%, rgba(0,0,0,0.5) 90%);
    z-index: 1001;
}

.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: var(--spacing-md);
    position: relative;
    z-index: 10;
    overflow-wrap: break-word;
}

/* Terminal header style */
header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px dashed var(--border-color);
}

/* Site title with terminal-style gradient */
.site-title {
    margin: 0 0 var(--spacing-xs) 0;
    font-weight: normal;
    font-size: var(--text-3xl);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
}

.site-title::before {
    content: "## ";
    color: var(--header-color);
}

.site-title::after {
    content: " ##";
    color: var(--header-color);
}

.site-title a {
    color: var(--header-color);
    text-decoration: none;
    border: none;
    padding: 0;
    position: relative;
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.site-title a:hover {
    color: var(--highlight-color);
    border: none;
}

.site-title a:focus {
    outline-color: var(--link-color);
}

/* Progressive enhancement for gradient text */
@supports (background-clip: text) or (-webkit-background-clip: text) {
    .site-title a {
        background: linear-gradient(to right, 
            var(--title-gradient-start) 0%, 
            var(--highlight-color) 50%, 
            var(--title-gradient-end) 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        text-shadow: 0 0 8px rgba(51, 255, 51, 0.6);
    }
    
    .site-title a:hover {
        background: linear-gradient(to right, 
            var(--highlight-color) 0%, 
            var(--title-gradient-start) 50%, 
            var(--highlight-color) 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        animation: flicker 0.5s infinite alternate;
    }
}

header h1 {
    color: var(--header-color);
    font-weight: normal;
    font-size: var(--text-3xl);
    margin: 0 0 var(--spacing-xs) 0;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

header h1::before {
    content: "## ";
}

header h1::after {
    content: " ##";
}

header p {
    color: var(--dim-color);
    margin: 0;
    font-size: var(--text-md);
}

/* Navigation with terminal command style */
nav {
    margin: var(--spacing-md) 0;
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs);
    background-color: rgba(0, 20, 0, 0.3);
}

nav::before {
    content: "$ help";
    display: block;
    color: var(--command-prompt);
    margin-bottom: 0.5rem;
}

nav a {
    color: var(--command-text);
    text-decoration: none;
    margin-right: var(--spacing-lg);
    position: relative;
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-xs);
}

nav a::before {
    content: "./";
    color: var(--dim-color);
}

nav a:hover {
    background-color: var(--dim-color);
    color: var(--bg-color);
}

nav a:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
    background-color: var(--dim-color);
    color: var(--bg-color);
}

/* Content area */
main {
    position: relative;
}

/* Blinking terminal cursor effect */
main::after {
    content: "█";
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    color: var(--text-color);
    animation: blink var(--cursor-blink) step-end infinite;
    opacity: 0.7;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    color: var(--header-color);
    font-weight: normal;
    margin: var(--spacing-xl) 0 var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

h1 {
    font-size: var(--text-3xl);
}

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

h2::before {
    content: "# ";
}

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

h3::before {
    content: "## ";
}

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

h4::before {
    content: "### ";
}

p {
    margin: 0 0 var(--spacing-md);
    line-height: var(--line-height-normal);
}

/* Terminal-style links */
a {
    color: var(--link-color);
    text-decoration: none;
    border-bottom: 1px dashed var(--link-color);
    padding-bottom: 1px;
    transition: all var(--transition-normal);
}

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

a:hover, a:focus {
    color: var(--highlight-color);
    border-bottom-style: solid;
    background-color: rgba(51, 255, 51, 0.1);
}

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

/* Article styling */
article {
    margin-bottom: var(--spacing-xxl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px dashed var(--border-color);
    position: relative;
}

article::before {
    content: "$ cat post.md";
    display: block;
    color: var(--command-prompt);
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
}

article:last-child {
    border-bottom: none;
}

article .meta {
    color: var(--dim-color);
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px dotted var(--dim-color);
    padding-bottom: var(--spacing-xs);
}

.reading-time {
    font-style: italic;
}

.reading-time::before {
    content: "[";
}

.reading-time::after {
    content: "]";
}

/* Text browser fallbacks for reading time brackets */
@supports not (content: "[") {
    .reading-time::before {
        content: "";
    }
    .reading-time::after {
        content: "";
    }
}

/* Tags */
.tags {
    margin-top: var(--spacing-lg);
}

.tags::before {
    content: "$ tags: ";
    color: var(--dim-color);
}

.tags a {
    display: inline-block;
    margin-right: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-xs);
    background-color: rgba(51, 255, 51, 0.1);
    color: var(--text-color);
    font-size: var(--text-sm);
    border: none;
}

.tags a:hover {
    background-color: var(--dim-color);
    color: var(--bg-color);
}

.tags a:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
    background-color: var(--dim-color);
    color: var(--bg-color);
}

.tags-list {
    margin: var(--spacing-md) 0;
}

.tag-count {
    color: var(--dim-color);
    font-size: var(--text-sm);
}

.tag-count::before {
    content: "(";
}

.tag-count::after {
    content: ")";
}

/* Text browser fallbacks for tag count parentheses */
@supports not (content: "(") {
    .tag-count::before {
        content: "";
    }
    .tag-count::after {
        content: "";
    }
}

/* Code blocks */
code {
    font-family: var(--font-mono);
    background-color: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-xs) var(--spacing-xs);
    border: 1px solid var(--dim-color);
    font-size: var(--text-md);
}

pre {
    background-color: rgba(0, 0, 0, 0.3);
    padding: var(--spacing-md);
    overflow-x: auto;
    border: 1px solid var(--dim-color);
    margin: var(--spacing-lg) 0;
    position: relative;
}

pre::before {
    content: "$ cat code.txt";
    display: block;
    color: var(--dim-color);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
    border-bottom: 1px dotted var(--dim-color);
    padding-bottom: var(--spacing-xs);
}

pre code {
    background-color: transparent;
    border: none;
    padding: 0;
    display: block;
}

/* Images with terminal-style frames */
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: var(--spacing-lg) auto;
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs);
    background-color: rgba(0, 20, 0, 0.3);
}

/* Terminal-style featured image */
.featured-image {
    max-width: 100%;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-md);
    background-color: rgba(0, 20, 0, 0.3);
    border: 1px solid var(--border-color);
    position: relative;
}

.featured-image::before {
    content: "$ display image.jpg";
    display: block;
    color: var(--command-prompt);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
    position: relative;
}

.featured-image::after {
    content: "Press any key to continue...";
    display: block;
    color: var(--dim-color);
    margin-top: var(--spacing-xs);
    font-family: var(--font-mono);
    position: relative;
    text-align: center;
    animation: blink 1s step-end infinite;
}

.featured-image img {
    border: 1px dashed var(--border-color);
    margin: 0 auto;
    filter: brightness(0.8) contrast(1.2) grayscale(0.3);
    transition: filter var(--transition-normal);
}

.featured-image:hover img {
    filter: brightness(0.9) contrast(1.3) grayscale(0);
}

.index-image {
    max-width: 100%;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-md);
    background-color: rgba(0, 20, 0, 0.3);
    border: 1px solid var(--border-color);
    position: relative;
}

.index-image::before {
    content: "$ ls -la images/";
    display: block;
    color: var(--command-prompt);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
    position: relative;
}

.index-image img {
    border: 1px dashed var(--border-color);
    margin: 0 auto;
    filter: brightness(0.8) contrast(1.2) grayscale(0.3);
    transition: filter var(--transition-normal);
}

.index-image:hover img {
    filter: brightness(0.9) contrast(1.3) grayscale(0);
}

.tag-image {
    max-width: 100%;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-md);
    background-color: rgba(0, 20, 0, 0.3);
    border: 1px solid var(--border-color);
    position: relative;
}

.tag-image::before {
    content: "$ find . -name \"*.tag\" -print";
    display: block;
    color: var(--command-prompt);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
    position: relative;
}

.tag-image img {
    border: 1px dashed var(--border-color);
    margin: 0 auto;
    filter: brightness(0.8) contrast(1.2) grayscale(0.3);
    transition: filter var(--transition-normal);
}

.tag-image:hover img {
    filter: brightness(0.9) contrast(1.3) grayscale(0);
}

.archive-image {
    max-width: 100%;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-md);
    background-color: rgba(0, 20, 0, 0.3);
    border: 1px solid var(--border-color);
    position: relative;
}

.archive-image::before {
    content: "$ tar -tvf archive.tar";
    display: block;
    color: var(--command-prompt);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-mono);
    position: relative;
}

.archive-image img {
    border: 1px dashed var(--border-color);
    margin: 0 auto;
    filter: brightness(0.8) contrast(1.2) grayscale(0.3);
    transition: filter var(--transition-normal);
}

.archive-image:hover img {
    filter: brightness(0.9) contrast(1.3) grayscale(0);
}

/* Footer */
footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px dashed var(--border-color);
    color: var(--dim-color);
    font-size: var(--text-sm);
    text-align: center;
}

footer::before {
    content: "$ exit";
    display: block;
    color: var(--command-prompt);
    margin-bottom: var(--spacing-md);
    text-align: left;
}

/* Terminal-style date header */
.date-header {
    color: var(--dim-color);
    font-size: var(--text-md);
    margin: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px dotted var(--dim-color);
    padding-top: var(--spacing-xs);
}

.date-header::before {
    content: "--- ";
}

.date-header::after {
    content: " ---";
}

/* Posts list terminal style */
.posts-list article {
    border: 1px solid var(--dim-color);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    background-color: rgba(0, 20, 0, 0.2);
}

.posts-list article::before {
    content: "$ ls -la post_" attr(data-date);
    color: var(--command-prompt);
}

.posts-list h3 {
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    text-transform: none;
}

.posts-list h3::before {
    content: "";
}

.summary {
    margin-top: var(--spacing-xs);
    border-top: 1px dotted var(--dim-color);
    padding-top: var(--spacing-xs);
}

/* Terminal-style blockquote */
blockquote {
    border-left: 4px solid var(--dim-color);
    padding: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-md);
    margin: var(--spacing-lg) 0;
    background-color: rgba(0, 0, 0, 0.3);
    color: var(--highlight-color);
    font-style: italic;
}

blockquote::before {
    content: "\"";
    font-size: 1.5rem;
    color: var(--dim-color);
}

blockquote::after {
    content: "\"";
    font-size: 1.5rem;
    color: var(--dim-color);
}

/* Tables */
table {
    border-collapse: collapse;
    width: 100%;
    margin: var(--spacing-lg) 0;
    font-family: var(--font-mono);
}

th, td {
    border: 1px solid var(--dim-color);
    padding: var(--spacing-xs);
    text-align: left;
}

th {
    background-color: rgba(0, 20, 0, 0.3);
    color: var(--header-color);
    font-weight: normal;
}

/* Terminal-style error messages */
.terminal-error {
    color: var(--error-color);
    border: 1px solid var(--error-color);
    padding: var(--spacing-xs);
    margin: var(--spacing-md) 0;
    background-color: rgba(255, 0, 0, 0.1);
    font-family: var(--font-mono);
}

.terminal-error::before {
    content: "ERROR: ";
    font-weight: bold;
}

.terminal-warning {
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
    padding: var(--spacing-xs);
    margin: var(--spacing-md) 0;
    background-color: rgba(255, 204, 0, 0.1);
    font-family: var(--font-mono);
}

.terminal-warning::before {
    content: "WARNING: ";
    font-weight: bold;
}

.terminal-success {
    color: var(--success-color);
    border: 1px solid var(--success-color);
    padding: var(--spacing-xs);
    margin: var(--spacing-md) 0;
    background-color: rgba(51, 255, 51, 0.1);
    font-family: var(--font-mono);
}

.terminal-success::before {
    content: "SUCCESS: ";
    font-weight: bold;
}

/* Terminal-style horizontal rule */
hr {
    border: none;
    height: 1px;
    background-color: var(--dim-color);
    margin: var(--spacing-xl) 0;
    position: relative;
}

hr::before {
    content: "----------------------------";
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 0 1rem;
    background-color: var(--bg-color);
    color: var(--dim-color);
}

/* Text browser fallback for hr decoration */
@supports not (content: "----------------------------") {
    hr::before {
        content: "";
    }
}

/* Selection style */
::selection {
    background-color: var(--text-color);
    color: var(--bg-color);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--dim-color);
    border: 1px solid var(--text-color);
}

/* Retro ASCII art dividers */
.ascii-divider {
    font-family: var(--font-mono);
    text-align: center;
    white-space: pre;
    line-height: 1.2;
    margin: 2rem 0;
    color: var(--dim-color);
}

/* Old screen flicker effect */
@keyframes flicker {
    0%, 100% { opacity: 1; }
    92% { opacity: 1; }
    93% { opacity: 0.8; }
    94% { opacity: 1; }
    98% { opacity: 0.9; }
    99% { opacity: 1; }
}

body {
    animation: flicker 5s infinite;
}

/* Media queries for responsive design */
@media (max-width: 600px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: var(--spacing-xs);
    }
    
    nav a {
        margin-right: var(--spacing-md);
    }
    
    h1, h2, h3, h4, h5, h6 {
        margin: var(--spacing-md) 0 var(--spacing-sm);
    }
    
    .featured-image,
    .index-image,
    .tag-image,
    .archive-image {
        padding: var(--spacing-sm);
    }
    
    .featured-image::before,
    .index-image::before,
    .tag-image::before,
    .archive-image::before {
        font-size: var(--text-sm);
    }
    
    .pagination {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    pre {
        padding: var(--spacing-sm);
    }
    
    blockquote {
        padding: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-sm);
    }
}

/* Pagination - Terminal Style */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-md) var(--spacing-xs);
    border-top: 1px dashed var(--border-color);
    position: relative;
}

.pagination::before {
    content: "$ navigate";
    position: absolute;
    left: 0;
    top: -2rem;
    color: var(--dim-color);
}

.pagination a {
    color: var(--highlight-color);
    text-decoration: none;
    font-family: var(--font-mono);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--dim-color);
    background-color: rgba(0, 20, 0, 0.3);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 100px;
    text-align: center;
}

.pagination a.prev-page::before {
    content: "« ";
}

.pagination a.next-page::after {
    content: " »";
}

.pagination a:hover {
    background-color: var(--dim-color);
    color: var(--bg-color);
}

.pagination a:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
    background-color: var(--dim-color);
    color: var(--bg-color);
}

.pagination .page-info {
    color: var(--dim-color);
    font-size: var(--text-sm);
    text-align: center;
}