@import url('https://fonts.googleapis.com/css2?family=Cascadia+Code:wght@300;400;500;600;700&display=swap');

/* ==========================================================================
   RESET Y VARIABLES
   ========================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #ffaa00;
    --accent-dim: #ff8800;
    --warning: #ffaa00;
    --border: #333333;
    --code-bg: #1e1e1e;
    --glow: rgba(255, 170, 0, 0.4);
}

/* ==========================================================================
   LAYOUT BASE
   ========================================================================== */

body {
    font-family: 'Cascadia Code', 'Courier New', monospace;
    line-height: 1.7;
    color: var(--text-primary);
    background: radial-gradient(ellipse at center, #0a0a0a 0%, #000000 100%);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-bottom: 3px solid var(--accent);
    padding: 2rem 0;
    margin-bottom: 3rem;
    box-shadow: 
        0 0 20px rgba(255, 170, 0, 0.2),
        inset 0 0 20px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 10;
}

nav {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav h1 a {
    color: var(--accent);
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 700;
    font-family: 'Cascadia Code', monospace;
    text-shadow: 0 0 10px var(--glow);
}

nav h1 a:hover {
    text-shadow: 0 0 20px var(--glow);
}

.back-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--glow);
}

main {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
    min-height: calc(100vh - 200px);
}

/* ==========================================================================
   POSTS
   ========================================================================== */

.posts {
    display: grid;
    gap: 3rem;
}

.post-preview {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.post-preview-thumbnail {
    flex-shrink: 0;
}

.preview-thumbnail {
    width: 150px;
    height: 100px;
    border-radius: 6px;
    object-fit: cover;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.post-preview:hover .preview-thumbnail {
    border-color: var(--accent);
    box-shadow: 0 4px 15px var(--glow);
}

.post-preview-content {
    flex: 1;
}

.post-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-dim));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.post-preview:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.post-preview:hover::before {
    opacity: 1;
}

.post-preview h2 a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.post-preview h2 a:hover {
    color: var(--accent);
    text-shadow: 0 0 10px var(--glow);
}

.post-preview time {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: 'Cascadia Code', monospace;
    display: block;
    margin: 1rem 0;
}

.post-preview p {
    margin: 1.5rem 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tags {
    display: flex;
    gap: 0.7rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.tag {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: 'Cascadia Code', monospace;
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 10px var(--glow);
}

.post {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 3rem;
    margin-top: 2rem;
}

.post-header {
    border-bottom: 2px solid var(--accent);
    padding-bottom: 2rem;
    margin-bottom: 3rem;
    position: relative;
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.post-header-content {
    flex: 1;
}

.post-thumbnail {
    width: 200px;
    height: 150px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid var(--border);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.post-thumbnail:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 20px var(--glow);
}

.post-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100px;
    height: 2px;
    background: var(--accent);
    box-shadow: 0 0 10px var(--glow);
}

.post-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.post-header time {
    color: var(--text-secondary);
    font-family: 'Cascadia Code', monospace;
    font-size: 0.9rem;
}

/* ==========================================================================
   CONTENT
   ========================================================================== */

.post-content {
    line-height: 1.8;
    font-size: 1.1rem;
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
    margin: 3rem 0 1.5rem 0;
    color: var(--accent);
    font-weight: 600;
}

.post-content h1 { font-size: 2rem; }
.post-content h2 { font-size: 1.6rem; }
.post-content h3 { font-size: 1.3rem; }

.post-content p {
    margin: 1.5rem 0;
    color: var(--text-secondary);
}

.post-content ul,
.post-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
    color: var(--text-secondary);
}

.post-content li {
    margin: 0.5rem 0;
}

.post-content blockquote {
    border-left: 4px solid var(--accent);
    background: var(--bg-tertiary);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-secondary);
    border-radius: 0 4px 4px 0;
}

.post-content code {
    background: var(--code-bg);
    color: var(--accent);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-family: 'Cascadia Code', monospace;
    font-size: 0.9em;
    border: 1px solid var(--border);
}

.post-content pre {
    background: var(--code-bg);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 2rem 0;
    position: relative;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
}

.post-content pre::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent);
    opacity: 0.5;
}

.post-content pre code {
    background: none;
    border: none;
    padding: 0;
    color: var(--text-primary);
    text-shadow: 0 0 1px var(--glow);
    font-size: 0.95em;
    line-height: 1.5;
}

/* Syntax highlighting colors */
.post-content pre code .keyword {
    color: #ff6b6b;
    font-weight: 600;
}

.post-content pre code .string {
    color: #4ecdc4;
}

.post-content pre code .comment {
    color: var(--text-secondary);
    font-style: italic;
}

.post-content pre code .number {
    color: #ffa500;
}

.post-content pre code .function {
    color: #ffeb3b;
}

.post-content pre code .type {
    color: #ff9800;
}

.post-content pre code .variable {
    color: #8bc34a;
}

/* ==========================================================================
   SYNTAX HIGHLIGHTING OVERRIDES (HIGHLIGHT.JS)
   ========================================================================== */

/* Override highlight.js theme to match retro terminal aesthetic */
.hljs {
    background: var(--code-bg) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
    border-radius: 8px !important;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5) !important;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-title,
.hljs-section,
.hljs-doctag,
.hljs-name,
.hljs-strong {
    color: #ff6b6b !important;
    font-weight: 600 !important;
}

.hljs-string,
.hljs-title,
.hljs-section,
.hljs-built_in,
.hljs-literal,
.hljs-type,
.hljs-addition,
.hljs-tag,
.hljs-quote,
.hljs-name,
.hljs-selector-id,
.hljs-selector-class {
    color: #4ecdc4 !important;
}

.hljs-comment,
.hljs-quote,
.hljs-deletion,
.hljs-meta {
    color: var(--text-secondary) !important;
    font-style: italic !important;
}

.hljs-number,
.hljs-regexp,
.hljs-symbol,
.hljs-variable,
.hljs-template-variable,
.hljs-link,
.hljs-selector-attr,
.hljs-selector-pseudo {
    color: var(--accent) !important;
}

.hljs-function,
.hljs-class,
.hljs-title.class_,
.hljs-title.function_ {
    color: #ffeb3b !important;
    font-weight: 500 !important;
}

.hljs-attr,
.hljs-attribute {
    color: #ff9800 !important;
}

.hljs-variable,
.hljs-template-variable,
.hljs-params {
    color: #8bc34a !important;
}

.hljs-emphasis {
    font-style: italic !important;
}

.hljs-strong {
    font-weight: bold !important;
}

/* Retro code block enhancement */
.hljs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent);
    opacity: 0.5;
}

/* Terminal-like line numbers (optional) */
.hljs-ln-numbers {
    color: var(--text-secondary) !important;
    border-right: 1px solid var(--border) !important;
    padding-right: 8px !important;
    margin-right: 8px !important;
}

/* ==========================================================================
   FOOTER Y RESPONSIVE
   ========================================================================== */

footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 4rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .post-header h1 {
        font-size: 2rem;
    }
    
    .post-header {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .post-thumbnail {
        width: 100%;
        height: 200px;
        max-width: 300px;
        align-self: center;
    }
    
    .post-preview {
        flex-direction: column;
        gap: 1rem;
    }
    
    .preview-thumbnail {
        width: 100%;
        height: 150px;
        max-width: 250px;
        align-self: center;
    }
    
    .post {
        padding: 1.5rem;
    }
    
    main {
        padding: 0 1rem;
    }
    
    nav h1 a {
        font-size: 1.5rem;
    }
}

/* ==========================================================================
   SCROLLBAR Y ANIMACIONES
   ========================================================================== */

::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-dim);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.post-preview, .post {
    animation: fadeIn 0.6s ease-out;
}

/* ==========================================================================
   CRT EFFECTS & RETRO STYLING
   ========================================================================== */

/* CRT Screen effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), 
        linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.3;
}

/* Scan line effect */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--glow), transparent);
    box-shadow: 0 0 10px var(--glow);
    animation: scanline 8s linear infinite;
    z-index: 999;
    opacity: 0.7;
}

@keyframes scanline {
    0% { 
        top: -2px; 
        opacity: 1;
    }
    100% { 
        top: 100vh; 
        opacity: 0;
    }
}

/* Screen flicker */
@keyframes flicker {
    0%, 100% { opacity: 1; }
    99% { opacity: 1; }
    99.5% { opacity: 0.98; }
}

html {
    animation: flicker 0.15s infinite linear;
}

/* Text glow utility */
.glow {
    text-shadow: 
        0 0 5px currentColor,
        0 0 10px currentColor,
        0 0 15px currentColor;
}

/* Utility classes */
.mt-2 {
    margin-top: 2rem;
}