/* ===== VARIABLES ===== */

/* Light (predeterminado) */
:root {
  --color-bg: #f4f0e6;
  --color-surface: #ebe6d8;
  --color-border: #c8c0aa;
  --color-accent: #1a6e40;
  --color-accent2: #c4420a;
  --color-text: #2c2820;
  --color-text-muted: #7a7060;
  --color-heading: #1a1510;

  --font-pixel: 'Press Start 2P', monospace;
  --font-label: 'Silkscreen', monospace;
  --font-mono: 'Share Tech Mono', monospace;

  --max-width: 900px;
  --gap: 2rem;

  color-scheme: light;
}

/* Dark */
[data-theme="dark"] {
  --color-bg: #0a0a0f;
  --color-surface: #12121a;
  --color-border: #2a2a3a;
  --color-accent: #00ff88;
  --color-accent2: #ff6b35;
  --color-text: #d4d4e8;
  --color-text-muted: #6b6b8a;
  --color-heading: #ffffff;

  color-scheme: dark;
}

/* ===== RESET ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

/* ===== BASE ===== */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Scanline effect solo en dark */
[data-theme="dark"] body::before {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-label);
  font-size: 0.65rem;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  line-height: 1;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== HEADER ===== */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1.2rem 0;
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--color-bg) 95%, transparent);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-logo {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.05em;
  line-height: 1.4;
}

.site-logo:hover {
  color: #fff;
}

.logo-bracket {
  color: var(--color-accent2);
}

.logo-blink {
  animation: blink 1s step-end infinite;
}

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

.site-nav {
  display: flex;
  gap: 1.5rem;
}

.site-nav a {
  font-family: var(--font-label);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.1em;
  transition: color 0.2s;
}

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

/* ===== MAIN ===== */
.site-main {
  flex: 1;
  padding: 3rem 0;
}

/* ===== FOOTER ===== */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.footer-credits {
  font-family: var(--font-label);
  font-size: 0.7rem;
  color: var(--color-accent);
  margin-top: 0.5rem;
  animation: blink 2s step-end infinite;
}

/* ===== HOMEPAGE ===== */
.hero {
  text-align: center;
  padding: 3rem 0 4rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 3rem;
}

.hero-title {
  font-family: var(--font-pixel);
  font-size: clamp(1rem, 4vw, 1.8rem);
  color: var(--color-heading);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.hero-title span {
  color: var(--color-accent);
}

.hero-subtitle {
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 500px;
  margin: 0 auto 2rem;
}

/* ===== POSTS GRID ===== */
.section-title {
  font-family: var(--font-label);
  font-size: 0.85rem;
  color: var(--color-accent2);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.post-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
  position: relative;
}

.post-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 0;
  background: var(--color-accent);
  transition: height 0.2s;
}

.post-card:hover::before {
  height: 100%;
}

.post-card-category {
  font-family: var(--font-label);
  font-size: 0.65rem;
  color: var(--color-accent2);
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.post-card-title {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--color-heading);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.post-card-title a {
  color: inherit;
  text-decoration: none;
}

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

.post-card-excerpt {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== POST PAGE ===== */
.post {
  max-width: 720px;
  margin: 0 auto;
}

.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.post-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.post-category {
  font-family: var(--font-label);
  font-size: 0.65rem;
  color: var(--color-accent2);
  background: rgba(255, 107, 53, 0.1);
  padding: 0.3rem 0.6rem;
  border: 1px solid rgba(255, 107, 53, 0.3);
}

.post-date {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.post-author {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.post-author::before {
  content: '— ';
}

.post-title {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 4vw, 2rem);
  color: var(--color-heading);
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

.post-description {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.post-content h2,
.post-content h3 {
  font-family: var(--font-pixel);
  color: var(--color-heading);
  margin: 2rem 0 1rem;
  line-height: 1.5;
}

.post-content h2 { font-family: var(--font-label); font-size: 1rem; }
.post-content h3 { font-family: var(--font-label); font-size: 0.85rem; color: var(--color-accent); }

.post-content p {
  margin-bottom: 1.25rem;
}

.post-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.post-content ul,
.post-content ol {
  margin: 1rem 0 1.25rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.4rem;
}

.post-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding: 0.75rem 1.25rem;
  background: var(--color-surface);
  margin: 1.5rem 0;
  color: var(--color-text-muted);
}

.post-content code {
  font-family: var(--font-mono);
  background: var(--color-surface);
  padding: 0.15em 0.4em;
  font-size: 0.9em;
  color: var(--color-accent);
}

.post-content pre {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.post-content pre code {
  background: none;
  padding: 0;
}

.post-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1.5rem auto;
  border: 1px solid var(--color-border);
}

.post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

/* ===== BOTONES ===== */
.btn-retro {
  display: inline-block;
  font-family: var(--font-label);
  font-size: 0.75rem;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 0.6rem 1rem;
  text-decoration: none;
  letter-spacing: 0.1em;
  transition: background 0.2s, color 0.2s;
}

.btn-retro:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* ===== POSTS LIST PAGE ===== */
.posts-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.posts-list-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: border-color 0.2s;
}

.posts-list-item:hover {
  border-color: var(--color-accent);
}

.posts-list-item h2 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--color-heading);
  margin-bottom: 0.3rem;
}

.posts-list-item h2 a {
  color: inherit;
  text-decoration: none;
}

.posts-list-item h2 a:hover {
  color: var(--color-accent);
}

.posts-list-item p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.posts-list-date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

/* ===== SOBRE PAGE ===== */
.about-content {
  max-width: 640px;
}

.about-content h1 {
  font-family: var(--font-label);
  font-size: 1.1rem;
  color: var(--color-accent);
  margin-bottom: 2rem;
  letter-spacing: 0.1em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .site-nav {
    gap: 1rem;
  }

  .site-nav a {
    font-size: 0.65rem;
  }

  .posts-list-item {
    grid-template-columns: 1fr;
  }
}