/*
Theme Name: katpadi
Theme URI: https://blog.katpadi.ph
Author: Kat Padilla
Author URI: https://katpadi.ph
Description: A minimalist, geeky, retro-clean WordPress theme for katpadi.ph blog. Built for speed with zero framework dependencies.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: katpadi
Tags: blog, minimalist, dark-mode, code-highlighting, retro
*/

/* =========================================
   CSS Custom Properties (Design Tokens)
   ========================================= */
:root {
  /* Light mode (default) */
  --color-bg:          #F5F0E8;
  --color-bg-alt:      #EDE8DF;
  --color-surface:     #FDFAF4;
  --color-border:      #D4CCBA;
  --color-text:        #1A1A1A;
  --color-text-muted:  #6B6456;
  --color-text-light:  #9B8F80;
  --color-accent:      #2D6A4F;
  --color-accent-alt:  #1B4332;
  --color-accent-glow: #52B788;
  --color-code-bg:     #EDE8DF;
  --color-code-text:   #2D6A4F;
  --color-link:        #2D6A4F;
  --color-link-hover:  #1B4332;
  --color-tag-bg:      #D8F3DC;
  --color-tag-text:    #1B4332;
  --color-mark:        #B7E4C7;

  /* Typography */
  --font-mono:   'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Courier New', monospace;
  --font-serif:  'Lora', 'Georgia', serif;
  --font-sans:   'IBM Plex Sans', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;

  /* Layout */
  --max-width:  860px;
  --max-width-wide: 1060px;

  /* Misc */
  --radius:     2px;
  --radius-sm:  1px;
  --transition: 0.2s ease;
  --border-width: 1px;
}

/* Dark mode */
[data-theme="dark"] {
  --color-bg:          #0F0F0F;
  --color-bg-alt:      #161616;
  --color-surface:     #1A1A1A;
  --color-border:      #2A2A2A;
  --color-text:        #E8E0D0;
  --color-text-muted:  #9B8F80;
  --color-text-light:  #6B6456;
  --color-accent:      #52B788;
  --color-accent-alt:  #74C69D;
  --color-accent-glow: #52B788;
  --color-code-bg:     #1A1A1A;
  --color-code-text:   #74C69D;
  --color-link:        #52B788;
  --color-link-hover:  #74C69D;
  --color-tag-bg:      #1B4332;
  --color-tag-text:    #74C69D;
  --color-mark:        #1B4332;
}

/* =========================================
   Reset & Base
   ========================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  transition: background-color var(--transition), color var(--transition);
  min-height: 100vh;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

::selection {
  background: var(--color-mark);
  color: var(--color-text);
}

/* =========================================
   Layout
   ========================================= */
.site-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.site-wrapper--wide {
  max-width: var(--max-width-wide);
}

/* =========================================
   Header
   ========================================= */
.site-header {
  background-color: var(--color-bg-alt);
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-2xl);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-branding {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}

.site-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

.site-title a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.site-title__prefix {
  color: var(--color-accent);
  font-weight: 400;
}

.site-title__cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--color-accent);
  margin-left: 1px;
  vertical-align: text-bottom;
  animation: blink 1.2s step-end infinite;
}

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

.site-tagline {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.site-nav__links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  align-items: center;
}

.site-nav__links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition);
}

.site-nav__links a:hover,
.site-nav__links .current-menu-item a {
  color: var(--color-accent);
  text-decoration: none;
}

/* Dark Mode Toggle */
.theme-toggle {
  background: none;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  padding: var(--space-xs) var(--space-sm);
  transition: all var(--transition);
  letter-spacing: 0.05em;
  line-height: 1;
}

.theme-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* =========================================
   Posts List (Home / Archive)
   ========================================= */
.posts-list {
  list-style: none;
}

.post-item {
  padding: var(--space-lg) 0;
  border-bottom: var(--border-width) solid var(--color-border);
}

.post-item:first-child {
  border-top: var(--border-width) solid var(--color-border);
}

.post-item__meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  letter-spacing: 0.03em;
}

.post-item__meta-sep {
  color: var(--color-border);
}

.post-item__title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

.post-item__title a {
  color: var(--color-text);
  text-decoration: none;
}

.post-item__title a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.post-item__excerpt {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.post-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-sm);
}

.tag-pill {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  padding: 2px var(--space-sm);
  border-radius: var(--radius);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: all var(--transition);
}

.tag-pill:hover {
  background: var(--color-accent);
  color: var(--color-bg);
  text-decoration: none;
}

/* Category badge */
.cat-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
}

.cat-badge:hover {
  color: var(--color-accent-alt);
  text-decoration: none;
}

/* =========================================
   Pagination
   ========================================= */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-2xl) 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.pagination a,
.pagination span {
  padding: var(--space-xs) var(--space-md);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all var(--transition);
  min-width: 2.2rem;
  text-align: center;
}

.pagination a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

.pagination .current {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

.pagination .dots {
  border-color: transparent;
}

/* Sidebar category items — no border, lowercase */
.sidebar .widget_categories li.cat-item {
  padding: var(--space-xs) 0;
  border-bottom: none;
  text-transform: lowercase;
  font-variant: normal;
}

/* =========================================
   Single Post
   ========================================= */
.entry-header {
  margin-bottom: var(--space-2xl);
}

.entry-categories {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.entry-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

.entry-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-light);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

.entry-meta__sep {
  color: var(--color-border);
}

/* =========================================
   Post Content (Typography)
   ========================================= */
.entry-content {
  font-family: var(--font-sans);
  font-size: 1.0rem;
  line-height: 1.8;
  color: var(--color-text);
}

.entry-content h1,
.entry-content h2,
.entry-content h3,
.entry-content h4,
.entry-content h5,
.entry-content h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.3;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.entry-content h2 { font-size: 1.5rem; }
.entry-content h3 { font-size: 1.25rem; }
.entry-content h4 { font-size: 1.1rem; }
.entry-content h5,
.entry-content h6 { font-size: 1rem; }

/* Retro heading accent */
.entry-content h2::before {
  content: '## ';
  font-family: var(--font-mono);
  font-size: 0.7em;
  color: var(--color-accent);
  font-weight: 400;
}

.entry-content h3::before {
  content: '### ';
  font-family: var(--font-mono);
  font-size: 0.7em;
  color: var(--color-accent);
  font-weight: 400;
}

.entry-content p {
  margin-bottom: var(--space-lg);
}

.entry-content a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.entry-content a:hover {
  color: var(--color-link-hover);
}

.entry-content strong, .entry-content b {
  font-weight: 700;
  color: var(--color-text);
}

.entry-content em, .entry-content i {
  font-style: italic;
}

.entry-content mark {
  background: var(--color-mark);
  color: var(--color-text);
  padding: 0 2px;
}

/* Lists */
.entry-content ul,
.entry-content ol {
  padding-left: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.entry-content li {
  margin-bottom: var(--space-xs);
}

.entry-content ul li::marker {
  color: var(--color-accent);
  content: '▸ ';
}

/* Blockquote */
.entry-content blockquote {
  border-left: 3px solid var(--color-accent);
  margin: var(--space-xl) 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-alt);
  font-style: italic;
  color: var(--color-text-muted);
}

.entry-content blockquote p:last-child {
  margin-bottom: 0;
}

/* Horizontal rule */
.entry-content hr {
  border: none;
  border-top: var(--border-width) solid var(--color-border);
  margin: var(--space-2xl) 0;
}

/* Images */
.entry-content figure {
  margin: var(--space-xl) 0;
}

.entry-content figcaption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-light);
  text-align: center;
  margin-top: var(--space-sm);
}

/* Tables */
.entry-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--space-xl);
  font-size: 0.9rem;
  overflow-x: auto;
  display: block;
}

.entry-content th,
.entry-content td {
  padding: var(--space-sm) var(--space-md);
  border: var(--border-width) solid var(--color-border);
  text-align: left;
}

.entry-content th {
  background: var(--color-bg-alt);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.entry-content tr:nth-child(even) td {
  background: var(--color-bg-alt);
}

/* =========================================
   Code & Syntax Highlighting
   ========================================= */

/* Inline code */
.entry-content code,
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-code-bg);
  color: var(--color-code-text);
  padding: 2px 6px;
  border-radius: var(--radius);
  border: var(--border-width) solid var(--color-border);
}

/* Code blocks */
.entry-content pre,
pre {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  overflow-x: auto;
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.83rem;
  line-height: 1.6;
}

.entry-content pre code,
pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
  border-radius: 0;
}

/* Code block header (language label) */
pre[class*="language-"]::before,
.wp-block-code[class*="language-"]::before {
  content: attr(data-language);
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: var(--border-width) solid var(--color-border);
}

/* Prism.js overrides — light */
:root code[class*="language-"],
:root pre[class*="language-"] {
  color: var(--color-text);
  background: var(--color-surface);
  text-shadow: none;
}

.token.comment, .token.prolog, .token.doctype, .token.cdata {
  color: var(--color-text-light);
  font-style: italic;
}
.token.punctuation       { color: var(--color-text-muted); }
.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted           { color: #C0392B; }
.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted          { color: var(--color-accent); }
.token.operator,
.token.entity,
.token.url               { color: #E67E22; }
.token.atrule,
.token.attr-value,
.token.keyword           { color: #2980B9; }
.token.function,
.token.class-name        { color: #8E44AD; }
.token.regex,
.token.important,
.token.variable          { color: #E67E22; }

/* Dark mode token overrides */
[data-theme="dark"] .token.comment,
[data-theme="dark"] .token.prolog,
[data-theme="dark"] .token.doctype,
[data-theme="dark"] .token.cdata     { color: #6B6456; }
[data-theme="dark"] .token.punctuation { color: #9B8F80; }
[data-theme="dark"] .token.property,
[data-theme="dark"] .token.tag,
[data-theme="dark"] .token.number,
[data-theme="dark"] .token.deleted   { color: #E07070; }
[data-theme="dark"] .token.string,
[data-theme="dark"] .token.inserted,
[data-theme="dark"] .token.selector  { color: #74C69D; }
[data-theme="dark"] .token.keyword   { color: #93C5FD; }
[data-theme="dark"] .token.function,
[data-theme="dark"] .token.class-name { color: #C4B5FD; }
[data-theme="dark"] .token.operator  { color: #FCD34D; }

/* =========================================
   Diagrams (Mermaid.js)
   ========================================= */
.mermaid {
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
  overflow-x: auto;
  text-align: center;
}

/* =========================================
   Archive / Year Page
   ========================================= */
.archive-header {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: var(--border-width) solid var(--color-border);
}

.archive-title {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
}

.archive-title__prefix {
  color: var(--color-accent);
  font-weight: 400;
}

.archive-title__count {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

.archive-year-group {
  margin-bottom: var(--space-2xl);
}

.archive-year-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: var(--border-width) solid var(--color-border);
}

/* =========================================
   Sidebar / Widget areas
   ========================================= */
.site-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
}

@media (min-width: 900px) {
  .site-layout--with-sidebar {
    grid-template-columns: 1fr 260px;
    max-width: var(--max-width-wide);
    margin: 0 auto;
  }
}

.sidebar {
  border-left: var(--border-width) solid var(--color-border);
  padding-left: var(--space-2xl);
}

.widget {
  margin-bottom: var(--space-2xl);
}

.widget-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: var(--border-width) solid var(--color-border);
}

.widget ul {
  list-style: none;
  font-size: 0.88rem;
}

.widget li {
  padding: var(--space-xs) 0;
  border-bottom: var(--border-width) solid var(--color-border);
}

.widget li:last-child {
  border-bottom: none;
}

.widget li a {
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.88rem;
}

.widget li a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

/* Archive widget special style */
.widget_archive li,
.widget_categories li {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.widget-count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-light);
}

/* =========================================
   "Old Posts" category banner
   ========================================= */
.old-posts-notice {
  background: var(--color-bg-alt);
  border: var(--border-width) solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-xl);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.old-posts-notice strong {
  color: var(--color-accent);
}

/* =========================================
   Post Navigation (prev/next)
   ========================================= */
.post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: var(--border-width) solid var(--color-border);
}

.post-navigation__prev,
.post-navigation__next {
  font-size: 0.88rem;
}

.post-navigation__next {
  text-align: right;
}

.post-navigation__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: var(--space-xs);
  display: block;
}

.post-navigation a {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-weight: 700;
  text-decoration: none;
  line-height: 1.3;
}

.post-navigation a:hover {
  color: var(--color-accent);
}

/* =========================================
   Comments
   ========================================= */
.comments-section {
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: var(--border-width) solid var(--color-border);
}

.comments-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.comment-list {
  list-style: none;
}

.comment {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: var(--border-width) solid var(--color-border);
}

.comment:last-child {
  border-bottom: none;
}

.comment__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.comment__author {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text);
}

.comment__date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-light);
}

.comment__body {
  font-size: 0.92rem;
  line-height: 1.7;
}

.comment-respond {
  margin-top: var(--space-2xl);
}

.comment-reply-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.comment-form input,
.comment-form textarea {
  width: 100%;
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  padding: var(--space-sm) var(--space-md);
  transition: border-color var(--transition);
  margin-bottom: var(--space-md);
}

.comment-form input:focus,
.comment-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.comment-form textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn,
.comment-form input[type="submit"] {
  background: var(--color-accent);
  color: var(--color-bg);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: var(--space-sm) var(--space-xl);
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: background var(--transition);
}

.submit-btn:hover,
.comment-form input[type="submit"]:hover {
  background: var(--color-accent-alt);
}

/* =========================================
   Footer
   ========================================= */
.site-footer {
  background-color: var(--color-bg-alt);
  margin-top: var(--space-3xl);
  padding: var(--space-xl) 0 var(--space-2xl);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-footer__copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-light);
}

.site-footer__copy a {
  color: var(--color-text-muted);
}

.site-footer__copy a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.site-footer__links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.site-footer__links a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-light);
  text-decoration: none;
  transition: color var(--transition);
}

.site-footer__links a:hover {
  color: var(--color-accent);
}

/* =========================================
   Search form
   ========================================= */
.search-form {
  display: flex;
  gap: var(--space-sm);
}

.search-field {
  flex: 1;
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: var(--space-xs) var(--space-sm);
  transition: border-color var(--transition);
}

.search-field:focus {
  outline: none;
  border-color: var(--color-accent);
}

.search-submit {
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius);
  color: var(--color-bg);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: var(--space-xs) var(--space-md);
  transition: background var(--transition);
}

.search-submit:hover {
  background: var(--color-accent-alt);
}

/* =========================================
   Utility / misc
   ========================================= */
.screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

.reading-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-light);
}

/* Retro scanline effect (subtle) */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.01) 2px,
    rgba(0,0,0,0.01) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 640px) {
  :root {
    --space-lg: 1rem;
    --space-xl: 1.5rem;
  }

  .site-header__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .post-navigation {
    grid-template-columns: 1fr;
  }

  .post-navigation__next {
    text-align: left;
  }

  .entry-title {
    font-size: 1.5rem;
  }
}

/* =========================================
   Print
   ========================================= */
@media print {
  .site-header,
  .site-footer,
  .sidebar,
  .post-navigation,
  .comments-section,
  .theme-toggle {
    display: none;
  }

  .entry-content {
    font-size: 12pt;
    line-height: 1.6;
    color: #000;
  }
}