/* ==========================================================================
   Burricornio Dev — design tokens & component layer
   Single source of truth: ../DESIGN.md
   Sistema: oklch + Inter cuerpo + Source Serif 4 display + JetBrains Mono
   ========================================================================== */

/* --------------------------------------------------------------------------
   Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Color — light (default) */
  --bg: oklch(0.985 0.003 250);
  --bg-elevated: oklch(0.965 0.005 250);
  --bg-sunken: oklch(0.935 0.007 250);
  --ink: oklch(0.205 0.012 255);
  --ink-soft: oklch(0.405 0.012 255);
  --ink-mute: oklch(0.585 0.010 255);
  --rule: oklch(0.895 0.008 250);
  --rule-strong: oklch(0.825 0.010 250);
  --primary: oklch(0.485 0.165 252);
  --primary-ink: oklch(0.985 0.003 250);
  --accent: oklch(0.620 0.158 53);
  --accent-ink: oklch(0.130 0.020 53);
  --success: oklch(0.620 0.140 150);
  --danger: oklch(0.520 0.190 27);
  --code-bg: oklch(0.165 0.012 260);
  --code-fg: oklch(0.910 0.020 90);

  /* Type */
  --font-display: "Source Serif 4", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --text-xs: clamp(0.78rem, 0.74rem + 0.2vw, 0.85rem);
  --text-sm: clamp(0.875rem, 0.83rem + 0.2vw, 0.95rem);
  --text-base: 1rem;
  --text-md: clamp(1.125rem, 1.04rem + 0.4vw, 1.25rem);
  --text-lg: clamp(1.25rem, 1.13rem + 0.6vw, 1.45rem);
  --text-xl: clamp(1.5rem, 1.31rem + 0.95vw, 1.9rem);
  --text-2xl: clamp(1.875rem, 1.55rem + 1.6vw, 2.6rem);
  --text-3xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.4rem);

  /* Space (4/8 grid) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Radius / shadow */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --shadow-1: 0 1px 2px 0 oklch(0.20 0.02 250 / 0.06);
  --shadow-2: 0 6px 18px -4px oklch(0.20 0.02 250 / 0.12),
              0 2px 6px -2px oklch(0.20 0.02 250 / 0.08);
  --shadow-3: 0 20px 40px -16px oklch(0.18 0.02 250 / 0.25);

  /* Layout */
  --container: 88rem;
  --container-narrow: 50rem;
  --sidebar-width: 22rem;

  /* Motion */
  --ease-out-soft: cubic-bezier(.2,.8,.2,1);
  --duration-fast: 160ms;
  --duration-med: 240ms;
  --duration-slow: 360ms;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: oklch(0.165 0.012 260);
    --bg-elevated: oklch(0.205 0.014 260);
    --bg-sunken: oklch(0.115 0.012 260);
    --ink: oklch(0.945 0.010 95);
    --ink-soft: oklch(0.785 0.020 95);
    --ink-mute: oklch(0.595 0.025 100);
    --rule: oklch(0.265 0.018 260);
    --rule-strong: oklch(0.345 0.020 260);
    --primary: oklch(0.715 0.155 252);
    --primary-ink: oklch(0.115 0.012 260);
    --accent: oklch(0.740 0.155 53);
    --accent-ink: oklch(0.130 0.020 53);
    --code-bg: oklch(0.115 0.012 260);
    --code-fg: oklch(0.910 0.020 90);
    --shadow-1: 0 1px 2px 0 oklch(0 0 0 / 0.4);
    --shadow-2: 0 6px 18px -4px oklch(0 0 0 / 0.55), 0 2px 6px -2px oklch(0 0 0 / 0.35);
    --shadow-3: 0 20px 40px -16px oklch(0 0 0 / 0.65);
  }
}

/* --------------------------------------------------------------------------
   Reset & base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.6;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.005em;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.022em;
  margin: 0 0 var(--space-4);
  text-wrap: balance;
}
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p, li { text-wrap: pretty; }
p { margin: 0 0 var(--space-5); }

a {
  color: var(--primary);
  text-decoration-color: color-mix(in oklch, var(--primary) 35%, transparent);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) var(--ease-out-soft),
              text-decoration-color var(--duration-fast) var(--ease-out-soft);
}
a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

::selection {
  background: color-mix(in oklch, var(--accent) 70%, transparent);
  color: var(--accent-ink);
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: var(--space-10) 0;
}

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.92em;
  font-feature-settings: "calt" 0, "liga" 0;
}
:not(pre) > code {
  background: var(--bg-elevated);
  border: 1px solid var(--rule);
  padding: 0.1em 0.4em;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
}
kbd {
  background: var(--bg-sunken);
  border: 1px solid var(--rule-strong);
  border-bottom-width: 2px;
  padding: 0.1em 0.45em;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-style: italic;
  color: var(--ink-soft);
  position: relative;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
blockquote::before {
  content: "“";
  position: absolute;
  left: -0.2em;
  top: -0.3em;
  font-family: var(--font-display);
  font-size: 4em;
  line-height: 1;
  color: var(--accent);
  opacity: 0.4;
}
blockquote p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  background: color-mix(in oklch, var(--bg-sunken) 94%, transparent);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: blur(14px);
}
.site-nav__inner {
  max-width: var(--container);
  min-height: 64px;
  margin-inline: auto;
  padding: 0 var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.site-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 800;
  letter-spacing: -0.025em;
  text-decoration: none;
  white-space: nowrap;
}
.site-nav__brand:hover { color: var(--primary); }
.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}
.site-nav__links > a {
  position: relative;
  min-height: 44px;
  padding: 0 var(--space-3);
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
}
.site-nav__links > a:hover { color: var(--primary); }
.site-nav__links > a::after {
  content: "";
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-med) var(--ease-out-soft);
}
.site-nav__links > a:hover::after { transform: scaleX(1); }
.site-nav__search { padding-inline: var(--space-3) !important; }
.site-nav__toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.site-nav__toggle > span[aria-hidden="true"] {
  width: 19px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--ink);
  transition: transform var(--duration-med) var(--ease-out-soft), opacity var(--duration-fast);
}
.site-nav__toggle[aria-expanded="true"] > span:nth-of-type(2) { transform: translateY(6px) rotate(45deg); }
.site-nav__toggle[aria-expanded="true"] > span:nth-of-type(3) { opacity: 0; }
.site-nav__toggle[aria-expanded="true"] > span:nth-of-type(4) { transform: translateY(-6px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
main, .container { max-width: var(--container); margin-inline: auto; }

.intro-header {
  position: relative;
  isolation: isolate;
  background-color: var(--bg-sunken);
  background-size: cover;
  background-position: center 45%;
  padding: clamp(4rem, 9vw, 7rem) 0 clamp(3rem, 7vw, 5rem);
  border-bottom: 1px solid var(--rule);
}
.intro-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, oklch(0.11 0.03 255 / 0.55), oklch(0.11 0.03 255 / 0.18) 45%, oklch(0.11 0.03 255 / 0.5)),
    linear-gradient(0deg, oklch(0.08 0.02 255 / 0.42), transparent 55%);
}
.intro-header .site-heading,
.intro-header .post-heading {
  text-align: center;
  margin: 0 auto;
  max-width: var(--container-narrow);
  padding: 0 var(--space-5);
}
.intro-header h1 {
  font-size: clamp(2.4rem, 5vw + 1rem, 4.2rem);
  margin-bottom: var(--space-4);
  color: oklch(0.98 0.01 95);
  text-shadow: 0 2px 18px oklch(0.08 0.02 255 / 0.65);
}
.intro-header .subheading {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: oklch(0.9 0.025 95);
  text-shadow: 0 1px 10px oklch(0.08 0.02 255 / 0.75);
}
.intro-header .header-meta {
  margin: var(--space-4) 0 0;
  color: oklch(0.86 0.02 95);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Two-column: posts + sidebar */
.posts-shell,
.page-shell {
  display: grid;
  grid-template-columns: minmax(0, var(--container-narrow)) var(--sidebar-width);
  justify-content: center;
  gap: var(--space-10);
  padding: var(--space-12) var(--space-5);
  max-width: var(--container);
  margin-inline: auto;
}
@media (max-width: 1240px) {
  .posts-shell,
  .page-shell {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

/* --------------------------------------------------------------------------
   Post list & cards
   -------------------------------------------------------------------------- */
.post-list { display: flex; flex-direction: column; gap: var(--space-6); }

.post-preview {
  position: relative;
  padding: var(--space-6) var(--space-6) var(--space-5);
  background: var(--bg-elevated);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-1);
  transition: transform var(--duration-med) var(--ease-out-soft),
              box-shadow var(--duration-med) var(--ease-out-soft),
              border-color var(--duration-med) var(--ease-out-soft);
}
.post-preview:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
  border-color: var(--rule-strong);
}
.post-preview::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--space-6);
  bottom: var(--space-5);
  width: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--duration-med) var(--ease-out-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.post-preview:hover::before { opacity: 1; }

.post-preview .post-link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.post-preview .post-link:hover { color: inherit; }

.post-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.022em;
  margin: 0 0 var(--space-2);
  color: var(--ink);
  text-wrap: balance;
}
.post-subtitle {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-md);
  color: var(--ink-soft);
  margin: 0 0 var(--space-4);
}
.post-content-preview {
  color: var(--ink-soft);
  font-size: var(--text-base);
  line-height: 1.65;
  margin: 0 0 var(--space-5);
}

.post-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding-top: var(--space-4);
  border-top: 1px dashed var(--rule);
}
.post-meta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  color: var(--ink-mute);
  font-size: var(--text-sm);
}
.post-meta > span {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.post-meta .tag {
  display: inline-flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  padding: 0.15em 0.7em;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 500;
  text-decoration: none;
  transition: background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast);
}
.post-meta .tag:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.6em 1.2em;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--duration-fast), color var(--duration-fast),
              border-color var(--duration-fast), transform var(--duration-fast);
}
.btn-primary,
.btn.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  box-shadow: var(--shadow-1);
}
.btn-primary:hover,
.btn.btn-primary:hover {
  background: color-mix(in oklch, var(--accent) 85%, var(--ink) 15%);
  transform: translateY(-1px);
  color: var(--accent-ink);
}
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: color-mix(in oklch, var(--primary) 35%, transparent);
}
.btn-ghost:hover {
  color: var(--primary-ink);
  background: var(--primary);
  border-color: var(--primary);
}

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: var(--space-12) 0 0;
}
.pagination li a,
.pagination li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--rule);
  background: var(--bg-elevated);
  color: var(--ink-soft);
  font-weight: 500;
  text-decoration: none;
  transition: background var(--duration-fast), color var(--duration-fast);
}
.pagination li a:hover {
  background: var(--primary);
  color: var(--primary-ink);
  border-color: var(--primary);
}
.pagination li.active span {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

/* --------------------------------------------------------------------------
   Sidebar
   -------------------------------------------------------------------------- */
.sidebar-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  font-family: var(--font-body);
  position: sticky;
  top: 80px;
  align-self: start;
}
.sidebar-card {
  background: var(--bg-elevated);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  position: relative;
  overflow: hidden;
}
.sidebar-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--primary) 0%, var(--primary) 60%, var(--accent) 100%);
}
.sidebar-card h5 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
}

.profile-card {
  text-align: center;
  padding-top: var(--space-6);
}
.profile-avatar-wrap {
  position: relative;
  width: 132px;
  height: 132px;
  margin: 0 auto var(--space-4);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  padding: 3px;
  animation: profile-float 6s ease-in-out infinite;
}
.profile-avatar-wrap img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 30%;
  border: 4px solid var(--bg-elevated);
}
@keyframes profile-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}
.profile-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}
.profile-role {
  font-size: var(--text-sm);
  color: var(--ink-soft);
  margin: var(--space-1) 0 var(--space-4);
}
.profile-bio {
  font-size: var(--text-sm);
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0 0 var(--space-4);
  text-align: left;
}
.profile-typed {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--accent);
  min-height: 3em;
  margin-bottom: var(--space-4);
  text-align: center;
}
.profile-typed::after {
  content: "_";
  animation: caret 1s steps(1) infinite;
  margin-left: 0.1em;
  opacity: 0.7;
}
@keyframes caret { 50% { opacity: 0; } }

.social-icons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}
.social-icons li { display: contents; }
.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  text-decoration: none;
  transition: transform var(--duration-fast), background var(--duration-fast),
              color var(--duration-fast), border-color var(--duration-fast);
}
.social-icons a:hover {
  transform: translateY(-2px);
  background: var(--primary);
  color: var(--primary-ink);
  border-color: var(--primary);
}
.social-icons a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Sidebar lists (links, tags) */
.sidebar-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.sidebar-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.45rem 0.6rem;
  margin-inline: -0.6rem;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--duration-fast), background var(--duration-fast);
}
.sidebar-list a:hover {
  color: var(--primary);
  background: var(--bg);
}
.sidebar-list a::after {
  content: "↗";
  color: var(--ink-mute);
  font-family: var(--font-mono);
  font-size: 0.9em;
  transition: color var(--duration-fast), transform var(--duration-fast);
}
.sidebar-list a:hover::after {
  color: var(--accent);
  transform: translate(2px, -2px);
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: 0;
}
.tags-cloud a {
  display: inline-flex;
  padding: 0.25em 0.7em;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  color: var(--ink-soft);
  font-size: var(--text-xs);
  font-weight: 500;
  text-decoration: none;
  transition: background var(--duration-fast), color var(--duration-fast), border-color var(--duration-fast);
}
.tags-cloud a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-ink);
}

/* --------------------------------------------------------------------------
   Page content (single posts, pages, about)
   -------------------------------------------------------------------------- */
.article-content {
  max-width: var(--container-narrow);
  width: 100%;
  font-size: var(--text-md);
  line-height: 1.75;
  color: var(--ink);
}
.article-content p,
.article-content li { color: var(--ink); }
.article-content h2 {
  margin-top: var(--space-12);
}
.article-content h2::before {
  content: "";
  display: inline-block;
  width: 1.5em;
  height: 0.08em;
  vertical-align: middle;
  background: var(--accent);
  margin-right: 0.5em;
}
.article-content h3 { margin-top: var(--space-8); }
.article-content img {
  border-radius: var(--radius-md);
  border: 1px solid var(--rule);
  margin: var(--space-5) auto;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-sm);
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.article-content th,
.article-content td {
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}
.article-content thead th {
  background: var(--bg-sunken);
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--ink);
  text-transform: none;
  letter-spacing: 0;
}
.article-content tbody tr:last-child td { border-bottom: 0; }
.article-content pre {
  background: var(--code-bg);
  color: var(--code-fg);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  overflow-x: auto;
  font-size: var(--text-sm);
  line-height: 1.65;
  margin: var(--space-5) 0;
  border: 1px solid color-mix(in oklch, var(--rule) 60%, transparent);
}
.article-content pre code { background: transparent; border: 0; padding: 0; color: inherit; }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--bg-sunken);
  border-top: 1px solid var(--rule);
  padding: var(--space-12) var(--space-5) var(--space-10);
  margin-top: var(--space-24);
}
.site-footer .inner {
  max-width: var(--container);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-10);
}
@media (max-width: 768px) {
  .site-footer .inner { grid-template-columns: 1fr; gap: var(--space-6); }
}
.site-footer h6 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
}
.site-footer p,
.site-footer ul,
.site-footer a {
  color: var(--ink-soft);
  font-size: var(--text-sm);
  line-height: 1.55;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer .links li { margin-bottom: var(--space-2); }
.site-footer a:hover { color: var(--accent); }
.site-footer .signoff {
  max-width: var(--container);
  margin: var(--space-10) auto 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  border-top: 1px solid var(--rule);
  padding-top: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink-mute);
}

/* --------------------------------------------------------------------------
   Books — escaparate /libros
   -------------------------------------------------------------------------- */
.libros-intro {
  font-family: var(--font-display);
  font-size: var(--text-md);
  color: var(--ink-soft);
  max-width: var(--container-narrow);
}
.libros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}
@media (max-width: 640px) {
  .libros-grid { grid-template-columns: 1fr; }
}
.libro-card {
  background: var(--bg-elevated);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--duration-med) var(--ease-out-soft),
              box-shadow var(--duration-med) var(--ease-out-soft),
              border-color var(--duration-med) var(--ease-out-soft);
}
.libro-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-3);
  border-color: var(--rule-strong);
}
.libro-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}
.libro-card-portada {
  position: relative;
  padding: var(--space-6);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: oklch(0.985 0.003 250);
  background:
    linear-gradient(90deg, oklch(0.08 0.02 250 / 0.92), oklch(0.08 0.02 250 / 0.54)),
    url("/libros/bevy-2d-ecs/assets/bevy-ecs-shelf.webp") center 48% / cover;
  overflow: hidden;
}
.libro-card-portada::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='1' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.95 0 0 0 0 0.91 0 0 0 0 0.83 0 0 0 0.06 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.5;
  mix-blend-mode: overlay;
  pointer-events: none;
}
.libro-card-portada > * { position: relative; z-index: 1; }
.libro-card-categoria {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: oklch(0.92 0.06 60);
  margin: 0;
}
.libro-card-titulo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.022em;
  line-height: 1.1;
  margin: var(--space-3) 0 var(--space-2);
  color: oklch(0.985 0.003 60);
  text-wrap: balance;
}
.libro-card-portada .libro-card-sub {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-md);
  color: oklch(0.9 0.025 70);
  margin: 0 0 var(--space-3);
}
.article-content .libro-card-titulo::before { content: none; }
.libro-card-version {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: oklch(0.78 0.04 60);
  align-self: flex-end;
}
.libro-card-info {
  padding: var(--space-5) var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.libro-card-info p {
  color: var(--ink-soft);
  font-size: var(--text-sm);
  line-height: 1.55;
  margin: 0;
}
.libro-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--ink-mute);
}
.libro-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.15em 0.55em;
  border-radius: var(--radius-sm);
  background: var(--bg);
  border: 1px solid var(--rule);
  font-weight: 500;
}
.libro-meta-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.15em 0.5em;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: var(--bg);
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink-soft);
}
.libro-card-cta {
  margin-top: auto;
  padding-top: var(--space-4);
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--primary);
  border-top: 1px dashed var(--rule);
}
.libro-card-link:hover .libro-card-cta {
  color: var(--accent);
}
.libro-card-link:hover .libro-card-cta::after {
  content: "→";
  animation: arrow-glide 600ms var(--ease-out-soft);
}
.libro-card-cta::after {
  content: "→";
  color: var(--accent);
  font-family: var(--font-mono);
}
@keyframes arrow-glide {
  0% { transform: translateX(0); }
  100% { transform: translateX(4px); }
}

/* --------------------------------------------------------------------------
   Stagger reveal (used by layout/partials/posts.html)
   -------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(12px); }
.reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity 360ms var(--ease-out-soft),
              transform 360ms var(--ease-out-soft);
  transition-delay: var(--reveal-delay, 0ms);
}

/* --------------------------------------------------------------------------
   Responsive — tablet & mobile
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .post-preview { padding: var(--space-5); }
  article.post { font-size: var(--text-base); }
  .sidebar-container { position: static; }
}
@media (max-width: 768px) {
  .site-nav__inner { min-height: 58px; padding-inline: var(--space-4); }
  .site-nav__toggle { display: inline-flex; }
  .site-nav__links {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding: var(--space-3) var(--space-4) var(--space-5);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    background: var(--bg-sunken);
    border-bottom: 1px solid var(--rule);
    box-shadow: var(--shadow-2);
  }
  .site-nav__links.is-open { display: flex; }
  .site-nav__links > a {
    min-height: 46px;
    padding: 0 var(--space-3);
    border-radius: var(--radius-md);
  }
  .site-nav__links > a:hover { background: var(--bg-elevated); }
  .site-nav__links > a::after { display: none; }
  .intro-header { padding: var(--space-10) 0 var(--space-8); }
  .intro-header { background-position: 32% center; }
  .intro-header h1 { font-size: clamp(2rem, 8vw, 2.6rem); }
  .post-title { font-size: var(--text-lg); }
  .post-subtitle { font-size: var(--text-base); }
  .navbar-nav > li > a { padding: 0.8rem 0.7rem; }
}
@media (max-width: 600px) {
  .posts-shell,
  .page-shell { padding: var(--space-8) var(--space-4); gap: var(--space-6); }
  .post-preview { padding: var(--space-4); border-radius: var(--radius-md); }
  .post-footer { flex-direction: column; align-items: flex-start; }
  .post-meta { font-size: var(--text-xs); }
}

@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;
  }
  .reveal { opacity: 1; transform: none; }
  .profile-avatar-wrap { animation: none; }
  .libro-card { transform: none !important; }
}