/* 
 * Minimal Theme for BSSG
 * A simple brutalist design
 * Enhanced with accessibility and compatibility improvements
 */

/* 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;
        transform: none !important;
    }
    
    .featured-image:hover img,
    .site-title a:hover,
    .pagination a:hover {
        transform: none !important;
    }
}

:root {
    /* Minimal palette */
    --bg-color: #000000;
    --text-color: #888888;
    --link-color: #478061;
    --link-visited: #478061;
    --header-color: #dddddd;
    --border-color: #dddddd;
    --accent-color: #478061;
    --tag-bg: #111111;
    --tag-text: #dddddd;
    --code-bg: #f8f8f8;
    --date-color: #767676;
    --transition: 0.2s ease;
    --radius: 4px;
    
    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    
    /* Sizing */
    --content-width: 680px;
}

/* Base elements */
html {
    font-size: 16px;
}

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

.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 2.5rem 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--header-color);
}

h1 {
    font-size: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

p {
    margin-top: 0;
    margin-bottom: 1.5rem;
}

/* Links */
a {
    color: var(--link-color);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition);
}

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

a:hover {
    text-decoration: none;
}

a:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
    text-decoration: none;
}

/* Header */
header {
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

/* Site title with enhanced accessibility */
.site-title {
    font-weight: 700;
    color: var(--header-color);
    margin: 0;
    font-size: 2rem;
}

/* Progressive enhancement for gradient text */
@supports (background-clip: text) or (-webkit-background-clip: text) {
    .site-title {
        background: linear-gradient(120deg, var(--header-color) 0%, var(--link-color) 100%);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
    }
}

.site-title a {
    text-decoration: none;
    color: var(--header-color);
    transition: all var(--transition);
}

/* Progressive enhancement for gradient text on links */
@supports (background-clip: text) or (-webkit-background-clip: text) {
    .site-title a {
        background: linear-gradient(120deg, var(--header-color) 0%, var(--link-color) 100%);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
    }
    
    .site-title a:hover {
        background: linear-gradient(120deg, var(--link-color) 0%, var(--link-visited) 100%);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
        transform: translateY(-1px);
    }
    
    .site-title a:focus {
        background: linear-gradient(120deg, var(--link-color) 0%, var(--link-visited) 100%);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
        transform: translateY(-1px);
    }
}

/* Fallback for browsers without gradient text support */
.site-title a:hover {
    color: var(--link-color);
}

.site-title a:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
    text-decoration: none;
    color: var(--link-color);
}

header h1 {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0.5rem;
    color: var(--header-color);
}

/* Progressive enhancement for header h1 gradient */
@supports (background-clip: text) or (-webkit-background-clip: text) {
    header h1 {
        background: linear-gradient(120deg, var(--header-color) 0%, var(--link-color) 100%);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
    }
}

header p {
    margin-bottom: 1rem;
    color: var(--date-color);
    font-size: 1.1rem;
}

/* Navigation */
nav {
    margin: 1.5rem 0 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

nav a {
    margin-right: 0.5rem;
    font-weight: 500;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: 0;
    left: 0;
    background-color: var(--link-color);
    transition: width var(--transition);
}

nav a:hover::after {
    width: 100%;
}

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

nav a:focus::after {
    width: 100%;
}

/* Article */
article {
    margin-bottom: 3.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

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

article .meta {
    color: var(--date-color);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Post Meta Information */
.page-meta {
    color: var(--date-color);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: block;
}

.reading-time {
    display: inline;
}

.reading-time::before {
    content: "⏱️";
    margin-right: 0.3rem;
    font-size: 0.9rem;
}

/* Text browser fallback for reading time icon */
@supports not (content: "⏱️") {
    .reading-time::before {
        content: "Time: ";
        margin-right: 0.3rem;
        font-size: 0.9rem;
    }
}

/* Featured Images */
.featured-image {
    margin: 1.5rem 0;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
}

.featured-image img {
    width: 100%;
    transition: transform var(--transition);
    display: block;
    border-radius: var(--radius);
}

.featured-image:hover img {
    transform: scale(1.01);
}

.featured-image .image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    padding: 0.75rem;
    font-size: 0.85rem;
}

.index-image {
    margin: 1.25rem 0;
    border-radius: var(--radius);
    overflow: hidden;
}

.index-image img {
    width: 100%;
    display: block;
    border-radius: var(--radius);
}

.tag-image {
    margin: 1.25rem 0;
    border-radius: var(--radius);
    overflow: hidden;
}

.tag-image img {
    width: 100%;
    display: block;
    border-radius: var(--radius);
}

.archive-image {
    margin: 1.25rem 0;
    border-radius: var(--radius);
    overflow: hidden;
}

.archive-image img {
    width: 100%;
    display: block;
    border-radius: var(--radius);
}

/* Code */
code {
    font-family: var(--font-mono);
    background-color: var(--code-bg);
    padding: 0.2rem 0.4rem;
    font-size: 0.9rem;
    border-radius: var(--radius);
}

pre {
    background-color: var(--code-bg);
    padding: 1.25rem;
    overflow-x: auto;
    border: 1px solid var(--border-color);
    margin: 1.75rem 0;
    border-radius: var(--radius);
}

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

/* Tags */
.tags {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tags a {
    display: inline-block;
    background-color: var(--tag-bg);
    padding: 0.3rem 0.6rem;
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--tag-text);
    border-radius: var(--radius);
    transition: background-color var(--transition);
}

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

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

.tags-list {
    margin: 1.25rem 0;
}

.tag-count {
    color: var(--date-color);
    font-size: 0.85rem;
    margin-left: 0.5rem;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.75rem auto;
    border-radius: var(--radius);
}

/* Footer */
footer {
    margin-top: 3.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
    color: var(--date-color);
    font-size: 0.9rem;
    text-align: center;
}

footer a {
    outline: 2px solid transparent;
    outline-offset: 2px;
    transition: outline-color var(--transition);
}

footer a:focus {
    outline-color: var(--link-color);
}

/* Date headers for indexes */
.date-header {
    color: var(--date-color);
    font-size: 1.25rem;
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    font-weight: normal;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

/* Posts list */
.posts-list article {
    padding-bottom: 1.75rem;
    margin-bottom: 1.75rem;
}

.posts-list h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.posts-list h3 a {
    outline: 2px solid transparent;
    outline-offset: 2px;
    transition: outline-color var(--transition);
}

.posts-list h3 a:focus {
    outline-color: var(--link-color);
}

.summary {
    margin-top: 0.75rem;
}

/* Quote styling */
blockquote {
    border-left: 3px solid var(--border-color);
    margin-left: 0;
    padding: 0.5rem 0 0.5rem 1.25rem;
    color: #444;
    font-style: italic;
}

/* Lists */
ul, ol {
    margin-top: 0;
    margin-bottom: 1.75rem;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.75rem;
}

/* Responsive */
@media (max-width: 650px) {
    .container {
        padding: 1.5rem 1.25rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.75rem;
    }
    
    article .meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 2.5rem 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
}

.pagination a {
    display: inline-block;
    padding: 0.5rem 0.75rem;
    background-color: var(--tag-bg);
    color: var(--text-color);
    text-decoration: none;
    border-radius: var(--radius);
    transition: background-color var(--transition), transform var(--transition);
}

.pagination a:hover {
    background-color: var(--border-color);
    transform: translateY(-1px);
}

.pagination a:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
    background-color: var(--border-color);
    transform: translateY(-1px);
}

.pagination .page-info {
    color: var(--date-color);
    font-size: 0.95rem;
}