/* =========================================================
   Branru — style.css
   Identidad visual: tecnológica, sobria, alto contraste.
   Mobile-first. Respeta prefers-reduced-motion.
   ========================================================= */

:root {
  --color-ink:        #0b1220;
  --color-ink-soft:    #33415c;
  --color-bg:          #ffffff;
  --color-bg-alt:      #f4f6fa;
  --color-border:      #dde3ee;
  --color-primary:     #1454f2;
  --color-primary-dark:#0d3ec2;
  --color-accent:      #05c7b8;
  --color-focus:       #ff8a00;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 10px;
  --container-w: 1140px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 var(--space-2); font-weight: 700; }
h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 var(--space-2); color: var(--color-ink-soft); }

a { color: var(--color-primary); text-decoration-thickness: 2px; }
a:hover { color: var(--color-primary-dark); }

/* Foco siempre visible: nunca se elimina el outline sin alternativa */
:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

/* Skip link accesible */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: #fff;
  padding: var(--space-2);
  z-index: 100;
}
.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  z-index: 50;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-2);
  flex-wrap: wrap;
}

.brand { display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; }
.brand__mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff; font-weight: 800;
}
.brand__name { font-weight: 800; font-size: 1.25rem; color: var(--color-ink); }

.nav-toggle {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: none; border: 1px solid var(--color-border); border-radius: 8px;
  padding: 0.5rem 0.75rem; cursor: pointer; font: inherit;
}
.nav-toggle__icon {
  width: 20px; height: 2px; background: var(--color-ink); position: relative; display: inline-block;
}
.nav-toggle__icon::before, .nav-toggle__icon::after {
  content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--color-ink);
}
.nav-toggle__icon::before { top: -6px; }
.nav-toggle__icon::after { top: 6px; }

.primary-nav ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap;
}
.primary-nav a { text-decoration: none; color: var(--color-ink); font-weight: 600; }
.primary-nav a[aria-current="page"] { color: var(--color-primary); }
.primary-nav__cta { margin-left: var(--space-1); }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    flex-basis: 100%;
    display: none;
  }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: flex-start; gap: var(--space-2); padding-top: var(--space-2); }
}
@media (min-width: 861px) {
  .nav-toggle { display: none; }
}

/* ---------- Botones ---------- */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.75rem 1.5rem; border-radius: 8px; font-weight: 700;
  text-decoration: none; border: 2px solid transparent; cursor: pointer; font-size: 1rem;
}
.button--primary { background: var(--color-primary); color: #fff; }
.button--primary:hover { background: var(--color-primary-dark); color: #fff; }
.button--ghost { border-color: var(--color-ink); color: var(--color-ink); background: transparent; }
.button--ghost:hover { background: var(--color-ink); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-5);
  background:
    radial-gradient(1200px 400px at 90% -10%, rgba(20,84,242,0.12), transparent),
    radial-gradient(900px 400px at -10% 110%, rgba(5,199,184,0.12), transparent),
    var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}
.hero__inner { max-width: 760px; }
.hero__actions { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-3); }

/* ---------- Secciones genéricas ---------- */
section { padding-block: var(--space-5); }
.section-heading { max-width: 680px; margin-inline: auto; text-align: center; margin-bottom: var(--space-4); }
.section--alt { background: var(--color-bg-alt); }

/* ---------- Tarjetas de servicios ---------- */
.card-grid {
  display: grid; gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  border: 1px solid var(--color-border); border-radius: var(--radius);
  padding: var(--space-3); background: #fff; display: flex; flex-direction: column; gap: var(--space-1);
}
.card__icon {
  width: 2.75rem; height: 2.75rem; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-bg-alt); color: var(--color-primary); font-weight: 800;
}
.card a.card__link { margin-top: auto; font-weight: 700; text-decoration: none; }

/* ---------- Proceso (lista ordenada accesible) ---------- */
.process-list {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  counter-reset: step;
}
.process-list li { counter-increment: step; border: 1px solid var(--color-border); border-radius: var(--radius); padding: var(--space-3); }
.process-list li::before {
  content: counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--color-primary); color: #fff; font-weight: 800; margin-bottom: var(--space-1);
}

/* ---------- Proyectos ---------- */
.project-card {
  border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; background: #fff;
}
.project-card__media {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-ink), var(--color-primary-dark));
  display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 1.5rem;
}
.project-card__body { padding: var(--space-3); }
.project-card__category { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-accent); font-weight: 700; }

/* ---------- CTA ---------- */
.cta {
  background: linear-gradient(135deg, var(--color-ink), var(--color-primary-dark));
  color: #fff; border-radius: var(--radius); padding: var(--space-5) var(--space-3); text-align: center;
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255,255,255,0.85); }
.cta .button--primary { background: #fff; color: var(--color-ink); }
.cta .button--primary:hover { background: var(--color-bg-alt); }

/* ---------- Formularios ---------- */
.form-field { margin-bottom: var(--space-3); display: flex; flex-direction: column; gap: 0.35rem; }
.form-field label { font-weight: 700; }
.form-field input,
.form-field textarea,
.form-field select {
  font: inherit; padding: 0.65rem 0.75rem; border: 1px solid var(--color-border); border-radius: 8px;
}
.form-field--checkbox { flex-direction: row; align-items: flex-start; gap: 0.6rem; }
.form-hint { font-size: 0.85rem; color: var(--color-ink-soft); }
.form-error { color: #b3261e; font-weight: 700; }
.honeypot { position: absolute; left: -9999px; }
.alert { border-radius: 8px; padding: var(--space-2) var(--space-3); margin-bottom: var(--space-3); }
.alert--success { background: #e6f6ee; border: 1px solid #34a853; }
.alert--error { background: #fdecea; border: 1px solid #b3261e; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink); color: rgba(255,255,255,0.85); margin-top: var(--space-5); }
.site-footer h2 { color: #fff; font-size: 1rem; text-transform: uppercase; letter-spacing: 0.05em; }
.site-footer a { color: rgba(255,255,255,0.8); }
.site-footer a:hover { color: #fff; }
.site-footer__grid {
  display: grid; gap: var(--space-4);
  grid-template-columns: 2fr 1fr 1fr 1fr;
  padding-block: var(--space-5);
}
.site-footer__nav ul, .site-footer__contact ul, .site-footer__legal ul, .site-footer__social {
  list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem;
}
.site-footer__social { flex-direction: row; gap: var(--space-2); margin-top: var(--space-2); }
.site-footer__bottom { border-top: 1px solid rgba(255,255,255,0.15); padding-block: var(--space-2); font-size: 0.85rem; }
.brand--footer .brand__name { color: #fff; }

@media (max-width: 760px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .site-footer__grid { grid-template-columns: 1fr; }
}

/* ---------- Aviso de cookies ---------- */
.cookie-consent {
  position: fixed;
  left: var(--space-2);
  right: var(--space-2);
  bottom: var(--space-2);
  max-width: 640px;
  margin-inline: auto;
  z-index: 60;
  background: var(--color-ink);
  color: #fff;
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}

.cookie-consent p {
  color: rgba(255,255,255,0.9);
  margin: 0;
  flex: 1 1 260px;
}

.cookie-consent a {
  color: #fff;
  text-decoration-thickness: 2px;
}

.cookie-consent__actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  .cookie-consent__actions {
    width: 100%;
  }

  .cookie-consent__actions .button {
    flex: 1 1 auto;
  }
}

/* Garantizar que hidden oculte el aviso de consentimiento */
.cookie-consent[hidden] {
    display: none !important;
}


/* Branru blog: presentación del contenido Markdown renderizado */
.post-content { line-height: 1.75; overflow-wrap: anywhere; }
.post-content > :first-child { margin-top: 0; }
.post-content h2 { margin: var(--space-4) 0 var(--space-2); }
.post-content h3 { margin: var(--space-3) 0 var(--space-1); }
.post-content h4, .post-content h5, .post-content h6 { margin: var(--space-3) 0 var(--space-1); }
.post-content ul, .post-content ol { margin: 0 0 var(--space-2); padding-left: 1.5rem; color: var(--color-ink-soft); }
.post-content li { margin-bottom: 0.4rem; }
.post-content li > ul, .post-content li > ol { margin-top: 0.4rem; margin-bottom: 0; }
.post-content blockquote { margin: var(--space-3) 0; padding: var(--space-1) var(--space-3); border-left: 4px solid var(--color-primary); background: var(--color-bg-alt); border-radius: 0 var(--radius) var(--radius) 0; }
.post-content blockquote > :last-child { margin-bottom: 0; }
.post-content hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-4) 0; }
.post-content code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: 4px; padding: 0.1em 0.35em; }
.post-content pre { margin: 0 0 var(--space-3); padding: var(--space-2) var(--space-3); overflow-x: auto; background: var(--color-ink); color: #fff; border-radius: var(--radius); line-height: 1.5; }
.post-content pre code { background: none; border: 0; padding: 0; color: inherit; font-size: 0.9rem; }
.post-content img { max-width: 100%; height: auto; border-radius: var(--radius); }