/* ============================================================
   LZR — case-study.css
   Página standalone. Tokens inline, sin depender de main.css.
   Sistema de color propio de LZR + tokens semánticos de BORR
   para el header, footer y CTA.
============================================================ */

/* ── Reset mínimo ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Tokens BORR (reutilizados en header/footer/CTA) ── */
:root {
  --borr-ink:       #1a1a1a;
  --borr-ink-80:    rgba(26, 26, 26, 0.80);
  --borr-ink-10:    rgba(26, 26, 26, 0.10);
  --borr-white:     #ffffff;
  --borr-white-55:  rgba(255, 255, 255, 0.55);
  --borr-white-65:  rgba(255, 255, 255, 0.65);
  --borr-white-70:  rgba(255, 255, 255, 0.70);
  --borr-bg:        #f0ede6;
  --borr-bg-alt:    #e8e4db;
  --borr-accent:    #ffc5d3;

  --font-sans:    'DM Sans', sans-serif;
  --font-display: 'Bricolage Grotesque', sans-serif;
  --font-serif:   'Instrument Serif', serif;
  --font-bsd:     'Big Shoulders Display', sans-serif;
  --font-sg:      'Space Grotesk', sans-serif;
  --font-pirata:  'Pirata One', cursive;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);

  --fs-xs:      0.6875rem;
  --fs-sm:      0.75rem;
  --fs-caption: 0.875rem;
  --fs-base:    1rem;

  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-btn: 100px;

  /* LZR palette */
  --lzr-black:  #0a0a0a;
  --lzr-grey:   #1a1a1a;
  --lzr-line:   #2c2c2c;
  --lzr-yellow: #f2c94c;
}

/* ── Base ── */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--borr-bg);
  color: var(--borr-ink);
  overflow-x: hidden;
}

a { text-decoration: none; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--borr-ink);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 12px 24px;
  background: var(--borr-ink);
  color: var(--borr-white);
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: top 0.2s;
}

.skip-link:focus { top: 16px; }

/* ── Reveal animations ── */
.rv {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(2px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease), filter 0.7s var(--ease);
}

.rv.visible   { opacity: 1; transform: none; filter: blur(0); }

@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; filter: none; }
}

.delay-1 { transition-delay: 0.10s; }
.delay-2 { transition-delay: 0.22s; }
.delay-3 { transition-delay: 0.36s; }
.delay-4 { transition-delay: 0.52s; }

/* ============================================================
   HEADER SUBPÁGINA
============================================================ */
.cs-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px clamp(16px, 5vw, 56px);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 0.5px solid rgba(255, 255, 255, 0.08);
}

.cs-header-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  color: var(--borr-white);
  line-height: 0;
  transition: opacity 0.2s;
}

.cs-header-logo:hover { opacity: 0.7; }

.cs-header-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 4px;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--borr-white-65);
  transition: color 0.2s;
}

.cs-header-back:hover { color: var(--borr-white); }

.cs-header-chips {
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (max-width: 640px) {
  .cs-header-chips { display: none; }
}

/* En pantallas muy chicas, dejamos solo el botón Volver y el logo */
@media (max-width: 380px) {
  .cs-header { padding: 8px 14px; }
  .cs-header-back { font-size: 10px; letter-spacing: 0.12em; }
}

/* ============================================================
   HERO
============================================================ */
.cs-hero {
  background: var(--lzr-black);
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px clamp(24px, 8vw, 80px) 80px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

/* Mascota de fondo */
.cs-hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.cs-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}

@media (max-width: 720px) {
  .cs-hero-bg img { object-position: 60% 35%; }
}

.cs-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 80% at 50% 40%, rgba(10,10,10,0.35) 0%, rgba(10,10,10,0.82) 100%),
    linear-gradient(to bottom, rgba(10,10,10,0.5) 0%, transparent 30%, transparent 65%, rgba(10,10,10,0.7) 100%);
  pointer-events: none;
}

.cs-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.cs-hero-logo {
  width: clamp(180px, 30vw, 300px);
}

.cs-hero-logo img {
  width: 100%;
  height: auto;
  filter: invert(1);
}

.cs-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-btn);
  color: var(--borr-white-65);
}

.cs-tag--light {
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--borr-white-65);
}

.cs-tag--concepto {
  border-color: rgba(242, 201, 76, 0.5);
  color: var(--lzr-yellow);
  background: transparent;
}

.cs-hero-title {
  font-family: var(--font-bsd);
  font-weight: 900;
  font-size: clamp(32px, 5.5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--borr-white);
}

.cs-hero-sub {
  font-family: var(--font-sg);
  font-size: clamp(15px, 1.4vw, 17px);
  font-weight: 400;
  line-height: 1.65;
  color: var(--borr-white-70);
  max-width: 560px;
  letter-spacing: 0;
  text-transform: none;
}

.cs-hero-scroll {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--borr-white-55);
  margin-top: 8px;
  animation: cs-bounce 2.4s ease-in-out infinite;
}

@keyframes cs-bounce {
  0%, 100% { transform: translateY(0); opacity: 0.55; }
  50% { transform: translateY(7px); opacity: 0.9; }
}

@media (prefers-reduced-motion: reduce) {
  .cs-hero-scroll { animation: none; }
  .cs-voz-text { transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   SECCIONES
============================================================ */
.cs-section {
  padding: clamp(64px, 10vh, 120px) clamp(24px, 8vw, 120px);
  position: relative;
}

.cs-section--light { background: var(--borr-bg); }
.cs-section--alt   { background: var(--borr-bg-alt); }

.cs-section--dark {
  background: var(--lzr-grey);
  color: var(--borr-white);
}

.cs-container {
  max-width: 840px;
  margin: 0 auto;
}

.cs-section-header {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 48px;
}

.cs-section-num {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.3em;
  color: rgba(26, 26, 26, 0.7);
  flex-shrink: 0;
  margin-top: 2px;
}

.cs-section-num--light {
  color: rgba(255, 255, 255, 0.78);
}

.cs-section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--borr-ink);
}

.cs-section-title--light { color: var(--borr-white); }

/* ── Prose ── */
.cs-prose p {
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.75;
  color: var(--borr-ink-80);
  margin-bottom: 20px;
}

.cs-prose p:last-child { margin-bottom: 0; }

.cs-prose--light p {
  color: var(--borr-white-70);
}

/* ── Pull quote ── */
.cs-pullquote {
  margin-top: 56px;
  padding: 0;
  border: none;
}

.cs-pullquote p {
  font-family: var(--font-pirata);
  font-size: clamp(40px, 6.5vw, 88px);
  font-weight: 400;
  font-style: normal;
  line-height: 1.05;
  color: var(--borr-white);
  letter-spacing: 0.01em;
}

.cs-pullquote--ink p {
  color: var(--lzr-black);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Decisions ── */
.cs-decisions {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cs-decision {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 24px;
  padding: 36px 0;
  border-bottom: 0.5px solid var(--borr-ink-10);
}

.cs-decision:first-child { border-top: 0.5px solid var(--borr-ink-10); }

.cs-decision-num {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(26, 26, 26, 0.65);
  padding-top: 4px;
}

.cs-decision-title {
  font-family: var(--font-display);
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--borr-ink);
  margin-bottom: 12px;
}

.cs-decision-text {
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--borr-ink-80);
}

code {
  font-family: 'Menlo', 'Monaco', monospace;
  font-size: 0.875em;
  background: var(--borr-ink-10);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ── Sistema visual ── */
.cs-system-list {
  display: flex;
  flex-direction: column;
  gap: clamp(56px, 8vw, 96px);
}

.cs-system-block {
  display: flex;
  flex-direction: column;
}

.cs-system-label {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(26, 26, 26, 0.7);
  margin-bottom: 16px;
}

.cs-swatch-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.cs-swatch {
  padding: 16px;
  min-height: 96px;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 6px;
}

@media (max-width: 480px) {
  .cs-swatch-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .cs-swatch {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    padding: 14px 18px;
  }
}

.cs-swatch--black {
  background: #0a0a0a;
  border: 1px solid rgba(255,255,255,0.08);
}

.cs-swatch--white {
  background: #ffffff;
  border: 1px solid var(--borr-ink-10);
}

.cs-swatch--yellow {
  background: #f2c94c;
  border: 1px solid rgba(0,0,0,0.1);
}

.cs-swatch-name {
  font-size: var(--fs-sm);
  font-weight: 500;
}

.cs-swatch-hex {
  font-family: 'Menlo', 'Monaco', monospace;
  font-size: var(--fs-sm);
  opacity: 0.6;
}

.cs-swatch--black .cs-swatch-name,
.cs-swatch--black .cs-swatch-hex  { color: rgba(255,255,255,0.8); }

.cs-swatch--white .cs-swatch-name,
.cs-swatch--white .cs-swatch-hex  { color: rgba(26,26,26,0.8); }

.cs-swatch--yellow .cs-swatch-name,
.cs-swatch--yellow .cs-swatch-hex { color: rgba(26,26,26,0.85); }

.cs-type-sample {
  padding: 20px 0;
  border-bottom: 0.5px solid var(--borr-ink-10);
  margin-bottom: 12px;
}

.cs-type--bsd span {
  font-family: var(--font-bsd);
  font-weight: 900;
  font-size: clamp(48px, 8vw, 80px);
  color: var(--borr-ink);
  letter-spacing: -0.01em;
  line-height: 1;
}

.cs-type--sg span {
  font-family: var(--font-sg);
  font-weight: 500;
  font-size: clamp(16px, 2.5vw, 22px);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--borr-ink);
  line-height: 1;
}

.cs-system-note {
  font-size: var(--fs-sm);
  font-weight: 400;
  line-height: 1.7;
  color: rgba(26, 26, 26, 0.78);
}

/* ── CTA section ── */
.cs-cta-section {
  text-align: center;
}

.cs-cta-logo {
  display: block;
  color: var(--borr-white);
  opacity: 1;
  margin-bottom: 8px;
  line-height: 0;
  overflow: hidden;
}

/* Skip blur during reveal to avoid white fringing on dark bg */
.cs-cta-logo.rv,
.cs-cta-logo.rv.visible { filter: none; }

.cs-cta-logo svg {
  display: block;
  width: 64px;
  height: auto;
}

.cs-cta-inner {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.cs-cta-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--borr-white);
}

.cs-cta-sub {
  font-size: var(--fs-base);
  font-weight: 400;
  color: var(--borr-white-70);
  line-height: 1.6;
}

.cs-cta-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  margin-top: 12px;
  padding: 14px 32px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-btn);
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--borr-white);
  transition: opacity 0.7s var(--ease), border-color 0.3s var(--ease), transform 0.4s var(--ease);
}

.cs-cta-btn:hover { border-color: var(--borr-bg); }

.cs-cta-btn-fill {
  position: absolute;
  width: 300%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--borr-bg);
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  pointer-events: none;
  z-index: 0;
}

.cs-cta-btn:hover .cs-cta-btn-fill {
  transform: translate(-50%, -50%) scale(1);
}

.cs-cta-btn-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color 0.25s 0.12s;
}

.cs-cta-btn:hover .cs-cta-btn-inner { color: var(--borr-ink); }

/* ============================================================
   FOOTER
============================================================ */
.cs-footer {
  background: var(--lzr-black);
  border-top: 0.5px solid rgba(255, 255, 255, 0.06);
  padding: 28px clamp(24px, 5vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.cs-footer-brand {
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--borr-white-65);
  transition: opacity 0.2s;
}

.cs-footer-brand:hover { opacity: 0.7; }

.cs-footer-mid {
  font-size: var(--fs-xs);
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--borr-white-55);
}

.cs-footer-ig {
  font-size: var(--fs-xs);
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--borr-white-65);
  transition: color 0.2s;
}

.cs-footer-ig:hover { color: var(--borr-accent); }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 720px) {
  .cs-hero {
    padding: 96px 20px 56px;
  }

  .cs-logo-stack {
    grid-template-columns: 1fr;
  }

  .cs-decision {
    grid-template-columns: 32px 1fr;
    gap: 16px;
    padding: 28px 0;
  }

  .cs-section-header {
    gap: 14px;
    margin-bottom: 32px;
  }

  .cs-pullquote {
    margin-top: 40px;
  }

  .cs-cta-section {
    text-align: left;
  }

  .cs-cta-inner {
    align-items: flex-start;
  }

  .cs-cta-logo svg { width: 56px; }

  .cs-footer {
    flex-direction: column;
    text-align: center;
    align-items: center;
    padding: 24px 16px;
  }
}

/* ── Fotos ── */
.cs-img-full {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  line-height: 0;
  position: relative;
}

.cs-img-full::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at center, transparent 25%, rgba(10,10,10,0.6) 100%),
    linear-gradient(to bottom, rgba(10,10,10,0.25) 0%, transparent 25%, transparent 75%, rgba(10,10,10,0.4) 100%);
  pointer-events: none;
  z-index: 2;
}

.cs-img-full img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.cs-img-split {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  line-height: 0;
}

.cs-img-split-item {
  overflow: hidden;
}

.cs-img-split-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

@media (max-width: 640px) {
  .cs-img-full {
    aspect-ratio: 4 / 3;
  }

  .cs-img-split {
    grid-template-columns: 1fr;
    aspect-ratio: auto;
  }

  .cs-img-split-item {
    aspect-ratio: 4 / 3;
  }
}

/* ── Sistema — logos ── */
.cs-logo-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 4px;
}

.cs-logo-plate {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: clamp(32px, 5vw, 56px) clamp(24px, 4vw, 40px);
  border-radius: var(--radius-md);
  margin: 0;
}

.cs-logo-plate--light {
  background: var(--borr-bg-alt);
}

.cs-logo-plate--dark {
  background: var(--lzr-black);
}

.cs-logo-plate img,
.cs-logo-plate svg {
  width: 100%;
  max-width: 240px;
  height: auto;
  display: block;
}

.cs-logo-multiply {
  mix-blend-mode: multiply;
}

.cs-logo-invert {
  filter: invert(1);
}

.cs-logo-plate figcaption {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(26, 26, 26, 0.65);
}

.cs-logo-plate--dark figcaption {
  color: var(--borr-white-55);
  opacity: 1;
}

/* ── Sistema — fuentes ── */
.cs-type-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 4px;
}

.cs-type-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cs-type--pirata span {
  font-family: var(--font-pirata);
}

/* ── Sistema — logo (legado, sin uso, eliminado del DOM) ── */

/* ── Split 2 columnas ── */
.cs-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 80svh;
}

.cs-split--dark {
  background: var(--lzr-black);
}

.cs-split-img {
  overflow: hidden;
  line-height: 0;
}

.cs-split-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.cs-split-content {
  padding: clamp(48px, 6vw, 96px) clamp(32px, 5vw, 72px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 40px;
}

.cs-decision-num--light  { color: var(--borr-white-55); }
.cs-decision-title--light { color: var(--borr-white); }
.cs-decision-text--light  { color: var(--borr-white-70); }


/* ── Voz tipográfica — morphing ── */
.cs-voz {
  background: var(--lzr-black);
  padding: clamp(80px, 12vw, 160px) clamp(24px, 8vw, 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.cs-voz-morphing {
  display: grid;
  place-items: center;
  text-align: center;
}

.cs-voz-text {
  grid-area: 1 / 1;
  font-family: var(--font-pirata);
  font-size: clamp(36px, 7vw, 96px);
  line-height: 1.15;
  color: var(--borr-white);
  letter-spacing: 0.01em;
  text-align: center;
  transition: opacity 0.8s ease;
}

.cs-voz-text[data-active="true"]  { opacity: 1; }
.cs-voz-text[data-active="false"] { opacity: 0; }

/* ── Objetos ── */
.cs-objects {
  background: var(--lzr-black);
  padding: clamp(48px, 6vw, 80px) clamp(24px, 6vw, 80px);
}

.cs-objects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(16px, 2vw, 32px);
  max-width: 960px;
  margin: 0 auto;
}

.cs-objects-item {
  border-radius: 8px;
  overflow: hidden;
  background: var(--lzr-grey);
  line-height: 0;
}

.cs-objects-item img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ── Cierre ── */
.cs-cierre {
  background: var(--lzr-black);
  min-height: 60svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(80px, 10vw, 140px) clamp(24px, 8vw, 120px);
  text-align: center;
}

.cs-cierre-frase {
  font-family: var(--font-pirata);
  font-size: clamp(44px, 8vw, 112px);
  line-height: 1.05;
  color: var(--borr-white);
  letter-spacing: 0.01em;
}

/* ── Ficha del proyecto ── */
.cs-ficha {
  background: var(--lzr-black);
  border-bottom: 0.5px solid rgba(255, 255, 255, 0.08);
  padding: 28px clamp(24px, 8vw, 120px);
}

.cs-ficha-inner {
  max-width: 840px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.cs-ficha-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cs-ficha-label {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.cs-ficha-value {
  font-family: var(--font-sg);
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--borr-white-70);
  line-height: 1.5;
}

.cs-ficha-item--full {
  grid-column: 1 / -1;
}

.cs-ficha-value--dim {
  color: rgba(255, 255, 255, 0.45);
  font-style: italic;
}

@media (max-width: 640px) {
  .cs-ficha-inner {
    grid-template-columns: 1fr 1fr;
    gap: 20px 16px;
  }
}

/* ── Sistema — regla de uso ── */
.cs-system-rule {
  margin-top: 16px;
  font-size: var(--fs-sm);
  font-weight: 400;
  line-height: 1.7;
  color: rgba(26, 26, 26, 0.6);
  font-style: italic;
}

/* ── Aprendizajes ── */
.cs-aprend-list {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.cs-aprend-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 24px;
  padding: 36px 0;
  border-bottom: 0.5px solid var(--borr-ink-10);
}

.cs-aprend-item:first-child {
  border-top: 0.5px solid var(--borr-ink-10);
}

.cs-aprend-num {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(26, 26, 26, 0.45);
  padding-top: 4px;
}

.cs-aprend-text {
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.75;
  color: var(--borr-ink-80);
  margin: 0;
}

/* ── Entregables ── */
.cs-entregables-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
}

.cs-entregables-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cs-entregables-label {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(26, 26, 26, 0.7);
}

.cs-entregables-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cs-entregables-list li {
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--borr-ink-80);
  padding-left: 16px;
  position: relative;
}

.cs-entregables-list li::before {
  content: '·';
  position: absolute;
  left: 0;
  color: rgba(26, 26, 26, 0.4);
  font-size: 1.2em;
  line-height: 1.5;
}

@media (max-width: 600px) {
  .cs-entregables-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .cs-aprend-item {
    grid-template-columns: 32px 1fr;
    gap: 16px;
    padding: 28px 0;
  }
}

/* ── Responsive nuevos bloques ── */
@media (max-width: 768px) {
  .cs-split {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .cs-split-img {
    aspect-ratio: 4 / 3;
  }

  .cs-objects-grid {
    grid-template-columns: 1fr;
  }

}