/*
Theme Name: wenlog500 (System Directory Edition)
Theme URI: http://wenlog.com/
Author: wenlog
Description: A hyper-functional, directory-style layout with unified system headers/footers for a contemporary graphic designer.
Version: 7.1
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg-color: #ffffff;
  --text-color: #111111;
  --text-muted: #888888;
  --border-color: #e0e0e0;
  --border-strong: #111111;
  --hover-bg: #f9f9f9;
  --code-bg: #f4f4f4;
}

.dark-mode {
  --bg-color: #111111;
  --text-color: #eeeeee;
  --text-muted: #888888;
  --border-color: #333333;
  --border-strong: #eeeeee;
  --hover-bg: #1a1a1a;
  --code-bg: #222222;
}

* { box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.2s ease, color 0.2s ease;
    
    /* 像素級對齊修正 */
    margin: 0;
    padding: 40px 20px;
    overflow-y: scroll;
}

.container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
}

/* ==========================================================================
   Unified System Header
   ========================================================================== */

.sys-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: 2px solid var(--border-strong);
    padding-bottom: 24px;
    margin-bottom: 40px;
}

.sys-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.sys-title span { color: var(--text-muted); font-weight: 400; }

.sys-nav-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.sys-nav .nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 16px;
}

.sys-nav .nav-menu a {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-color);
    text-decoration: none;
    border: none;
    transition: opacity 0.2s ease;
}

.sys-nav .nav-menu a:hover { text-decoration: underline; opacity: 0.7; }

/* Theme Toggle */
.theme-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    display: flex;
    align-items: center;
    padding: 0;
}

.theme-toggle svg { width: 18px; height: 18px; }
.sun-icon { display: none; }
.moon-icon { display: block; }
.dark-mode .sun-icon { display: block; }
.dark-mode .moon-icon { display: none; }

/* ==========================================================================
   Directory List (Index Page / Blogroll)
   ========================================================================== */

.log-directory {
    border-top: 1px solid var(--border-color);
}

.log-header-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    padding: 12px 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-bottom: 1px solid var(--border-color);
}

.log-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    transition: background-color 0.2s ease;
}

.log-row:hover {
    background-color: var(--hover-bg);
    cursor: crosshair;
}

.col-author {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.author-tag {
    background-color: var(--text-color);
    color: var(--bg-color);
    padding: 2px 6px;
    border-radius: 2px;
    display: inline-block;
}

.col-title h2, 
.col-title h3 {
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    font-weight: 500;
    margin: 0;
    letter-spacing: -0.01em;
}

.col-title a {
    color: var(--text-color);
    text-decoration: none;
    border: none;
    display: block;
}

.log-row:hover .col-title a {
    text-decoration: underline;
}

/* ==========================================================================
   Single Post & Pages (Detailed View)
   ========================================================================== */

.log-entry {
    max-width: 680px;
}

.log-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
    margin-bottom: 40px;
}

.meta-bar {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.log-title {
    font-family: 'Inter', sans-serif;
    font-size: 32px;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.log-content p {
    font-size: 15px;
    line-height: 1.7;
    margin: 0 0 24px 0;
}

.log-content h2, 
.log-content h3, 
.log-content h4 {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--text-color);
}

.log-content a {
    color: var(--text-color);
    text-decoration: none;
    border-bottom: 1px solid var(--text-muted);
    transition: border-bottom-color 0.2s ease;
}

.log-content a:hover {
    border-bottom-color: var(--text-color);
}

.log-content img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    padding: 4px; 
    margin: 24px 0;
    display: block;
}

/* ==========================================================================
   Blockquotes and Code
   ========================================================================== */

blockquote {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    margin: 32px 0;
    padding: 16px 20px;
    color: var(--text-color);
    background: var(--hover-bg);
    border-left: 2px solid var(--text-color);
}

blockquote p {
    margin: 0 !important;
}

pre, code {
    font-family: 'JetBrains Mono', Consolas, monospace !important;
    background-color: var(--code-bg) !important;
    color: var(--text-color) !important;
    font-size: 13px !important;
    border-radius: 0 !important;
}

pre {
    padding: 16px !important;
    margin: 24px 0 !important;
    border: 1px solid var(--border-color) !important;
    overflow-x: auto !important;
}

code {
    padding: 2px 4px !important;
}

/* ==========================================================================
   Pagination
   ========================================================================== */

.pagination {
    display: flex;
    justify-content: flex-start;
    gap: 24px;
    margin-top: 60px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 700;
}

.pagination .page-numbers {
    color: var(--text-muted);
    text-decoration: none;
    border: none;
    transition: color 0.2s ease;
    padding: 0;
}

.pagination .page-numbers.current,
.pagination .page-numbers:hover {
    color: var(--text-color);
    text-decoration: underline;
    background: transparent;
}

/* ==========================================================================
   Unified System Footer
   ========================================================================== */

.sys-footer {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    display: flex;
    justify-content: space-between;
    border-top: 2px solid var(--border-strong);
    padding-top: 16px;
    margin-top: 80px;
}

/* ==========================================================================
   Mobile Responsive
   ========================================================================== */

@media (max-width: 650px) {
    body { padding: 30px 16px; }
    .sys-header { flex-direction: column; align-items: flex-start; gap: 16px; }
    .sys-nav-actions { width: 100%; display: flex; justify-content: space-between; align-items: center; flex-direction: row-reverse; }
    .sys-nav .nav-menu { gap: 12px; }
    
    .log-header-row { display: none; }
    .log-row { grid-template-columns: 1fr; padding: 16px 0; gap: 8px; }
    .col-author { font-size: 10px; }
    
    .sys-footer { flex-direction: column; gap: 8px; align-items: flex-start; }
}

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.log-row { animation: fadeIn 0.4s ease-out backwards; }
.log-row:nth-child(2) { animation-delay: 0.05s; }
.log-row:nth-child(3) { animation-delay: 0.1s; }
.log-row:nth-child(4) { animation-delay: 0.15s; }
.log-row:nth-child(5) { animation-delay: 0.2s; }