/* =========================================================================
   Claude desde Cero — Sistema de diseño
   Estilo: minimalista en estructura, neo-brutalista en color y forma.
   ========================================================================= */

:root {
  /* Paleta neo-brutalista */
  --bg:        #faf4e6;  /* crema cálido */
  --ink:       #16130d;  /* casi negro */
  --paper:     #ffffff;

  --yellow:    #ffd23f;
  --pink:      #ff5c8a;
  --cyan:      #36d6c3;
  --violet:    #8b6cff;
  --orange:    #ff7a3c;
  --lime:      #b8f24a;

  /* Sistema brutalista: borde grueso + sombra dura sin blur */
  --border-w:  3px;
  --radius:    14px;
  --shadow:    6px 6px 0 0 var(--ink);
  --shadow-sm: 4px 4px 0 0 var(--ink);
  --shadow-lg: 10px 10px 0 0 var(--ink);

  --font-sans: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, monospace;

  --maxw: 1080px;
}

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

* { margin: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  /* trama sutil de puntos para textura brutalista discreta */
  background-image: radial-gradient(var(--ink) 0.6px, transparent 0.6px);
  background-size: 28px 28px;
  background-attachment: fixed;
  background-position: -2px -2px;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

/* --------------------------------------------------------------- Layout */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: 72px; }

.stack > * + * { margin-top: 1rem; }

/* ------------------------------------------------------------ Tipografía */
h1, h2, h3, h4 {
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.6rem, 7vw, 5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.6rem); }

p  { max-width: 62ch; }

.lead { font-size: clamp(1.1rem, 2vw, 1.35rem); }

.mono { font-family: var(--font-mono); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--ink);
  color: var(--bg);
  padding: 6px 12px;
  border-radius: 999px;
}

mark {
  background: var(--yellow);
  padding: 0 0.18em;
  box-decoration-break: clone;
}

/* ------------------------------------------------------------- Navbar */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: var(--border-w) solid var(--ink);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.05rem;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--orange);
  border: var(--border-w) solid var(--ink);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  font-weight: 700;
  font-family: var(--font-mono);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  padding: 0;
}

.nav__links a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 12px;
  border-radius: 8px;
  border: var(--border-w) solid transparent;
}

.nav__links a:hover {
  border-color: var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------- Botones */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  padding: 14px 22px;
  background: var(--paper);
  color: var(--ink);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}

.btn:hover  { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); }
.btn:active { transform: translate(3px, 3px);  box-shadow: 2px 2px 0 0 var(--ink); }

.btn--primary { background: var(--yellow); }
.btn--pink    { background: var(--pink); }
.btn--cyan    { background: var(--cyan); }
.btn--violet  { background: var(--violet); color: var(--paper); }

/* ----------------------------------------------------------------- Hero */
.hero { padding-block: 84px 64px; }

.hero h1 { margin-bottom: 22px; }

.hero .lead { margin-bottom: 32px; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
}

.chip {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 14px;
  background: var(--paper);
  border: var(--border-w) solid var(--ink);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

/* ----------------------------------------------------------- Tarjetas */
.grid {
  display: grid;
  gap: 24px;
}

.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--paper);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}

a.card { text-decoration: none; }

a.card:hover { transform: translate(-3px, -3px); box-shadow: var(--shadow-lg); }

.card__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border: var(--border-w) solid var(--ink);
  border-radius: 12px;
  font-size: 1.5rem;
}

.card h3 { margin-top: 4px; }

.card p { font-size: 0.98rem; color: #2c281f; }

.card__meta {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.tag {
  padding: 4px 10px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  font-weight: 600;
}

/* colores rotativos para iconos/acentos */
.c-yellow { background: var(--yellow); }
.c-pink   { background: var(--pink); }
.c-cyan   { background: var(--cyan); }
.c-violet { background: var(--violet); color: var(--paper); }
.c-orange { background: var(--orange); }
.c-lime   { background: var(--lime); }

/* --------------------------------------------------------- Panel / pasos */
.panel {
  background: var(--paper);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px;
}

.steps {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: step;
}

.steps li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  align-items: start;
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background: var(--cyan);
  border: var(--border-w) solid var(--ink);
  border-radius: 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

/* ----------------------------------------------------------- CTA banda */
.band {
  background: var(--violet);
  border-block: var(--border-w) solid var(--ink);
  color: var(--paper);
}

.band .panel {
  background: var(--ink);
  color: var(--bg);
  text-align: center;
  border-color: var(--bg);
}

/* ------------------------------------------------------------- Footer */
.footer {
  border-top: var(--border-w) solid var(--ink);
  background: var(--ink);
  color: var(--bg);
  padding-block: 40px;
}

.footer a { color: var(--yellow); }

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}

/* ---------------------------------------------------- Página de contenido */
.article {
  background: var(--paper);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(28px, 5vw, 56px);
  margin-block: 48px;
}

.article > * + * { margin-top: 1.1rem; }

.article h2 { margin-top: 2rem; }
.article h3 { margin-top: 1.6rem; }

.article ul, .article ol { padding-left: 1.4rem; }
.article li + li { margin-top: 0.4rem; }

.article pre {
  background: var(--ink);
  color: #f3eee1;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  border: var(--border-w) solid var(--ink);
}

.article code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--yellow);
  padding: 0.1em 0.35em;
  border-radius: 6px;
}

.article pre code { background: none; padding: 0; color: inherit; }

/* Tablas dentro del artículo */
.table-wrap {
  overflow-x: auto;
  margin-top: 1.1rem;
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.article table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.92rem;
}

.article th,
.article td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 2px solid var(--ink);
  border-right: 2px solid var(--ink);
  vertical-align: top;
}

.article th:last-child,
.article td:last-child { border-right: 0; }

.article tbody tr:last-child td { border-bottom: 0; }

.article thead {
  background: var(--ink);
  color: var(--bg);
}

.article thead th {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.article tbody tr:nth-child(even) { background: #fbf7ec; }

.article td code { font-size: 0.82em; }

.article blockquote {
  border-left: 6px solid var(--pink);
  background: #fff6f9;
  padding: 14px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
}

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-top: 32px;
}

.breadcrumb a { text-decoration: none; font-weight: 600; }
.breadcrumb a:hover { text-decoration: underline; }

.callout {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--lime);
  border: var(--border-w) solid var(--ink);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
}

.callout strong { display: block; }

/* --------------------------------------------------------------- Utils */
.center      { text-align: center; }
.mt-0        { margin-top: 0 !important; }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head .eyebrow { margin-bottom: 16px; }

/* --------------------------------------------------------- Responsive */
@media (max-width: 860px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 620px) {
  body { font-size: 17px; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .nav__links.is-open {
    display: flex;
    position: absolute;
    inset: 100% 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg);
    border-bottom: var(--border-w) solid var(--ink);
    padding: 16px 24px;
    gap: 6px;
  }
  .section { padding-block: 56px; }
}

/* botón menú (solo móvil) */
.nav__toggle {
  display: none;
  font-family: var(--font-mono);
  font-weight: 700;
  background: var(--yellow);
  border: var(--border-w) solid var(--ink);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

@media (max-width: 620px) {
  .nav__toggle { display: inline-block; }
  .nav__inner { position: relative; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto; }
}