/*
  Continental Media — "Aliados y Tecnología" block styles.
  Namespaced under .cm-aliados. Depends on assets/css/tokens.css.
  See aliados-tecnologia.html for the full direction-contract comment.

  The one section on the page that pins its own fixed LIGHT background —
  every logo asset is monochrome black with no color/light variant, so
  this section cannot inherit the site's near-black --cm-color-bg. The
  two local tokens below exist only inside .cm-aliados; nothing else on
  the page should read them.

  Contrast (verified, WCAG AA, against --cm-aliados-bg #f4f5f7):
    - eyebrow / row-label text, black at 70% opacity  -> 7.28:1
    - chip text/logos at full black                   -> 18.05:1
    - --cm-blue-700 hover accent (border/icon)         -> 7.05:1
  All comfortably clear of the 4.5:1 floor for normal text.
*/

.cm-aliados {
  --cm-aliados-bg: #f4f5f7;
  --cm-aliados-fg: #0a0b0d;
  background: var(--cm-aliados-bg);
  color: var(--cm-aliados-fg);
  padding-block: clamp(3rem, 7vh, 4.5rem);
}

.cm-aliados__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding-inline: var(--cm-gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(1.75rem, 4vw, 2.5rem);
}

/* ---------- Eyebrow (the section's only heading — deliberately no
   display-scale title, this is a trust seal, not a narrative block) ---------- */

.cm-aliados__eyebrow {
  margin: 0;
  font-family: var(--cm-font-body);
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(10, 11, 13, 0.7);
  text-align: center;
}

/* ---------- Rows ---------- */

.cm-aliados__row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
  width: 100%;
}

.cm-aliados__row-label {
  display: block;
  font-family: var(--cm-font-body);
  /* Sentence case, not uppercase: two of these three labels are full
     5-6 word phrases (not a 1-2 word eyebrow tag), and all-caps at that
     length hurts scanability — letters lose their word-shape cues.
     Weight/tracking compensate so it still reads as a small label. */
  font-weight: 600;
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
  color: rgba(10, 11, 13, 0.7);
  text-align: center;
}

.cm-aliados__chip-list,
.cm-aliados__logo-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  column-gap: clamp(2rem, 5vw, 3.75rem);
  row-gap: 1.25rem;
}

/* ---------- Row 1 — clickable chips (Plataformas propietarias) ---------- */
/* Deliberately no box: no border, no background, no border-radius. The
   wordmark inside (.cm-aliados__logo, shared with rows 2-3 below) is
   styled exactly like an informational logo — same height, same
   resting-opacity behavior — so it carries zero "this is a button"
   signal on its own. The only thing that marks a chip as clickable at
   rest is the small external-link arrow next to the name; the only
   thing that marks it as *hovered* is the underline + arrow nudge
   below, both gated to hover-capable pointers. */

.cm-aliados__chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 1px solid transparent;
  padding-bottom: 0.15em;
  text-decoration: none;
  transition: border-color var(--cm-duration-fast) var(--cm-ease-out);
}

.cm-aliados__chip-arrow {
  flex: none;
  width: 14px;
  height: 14px;
  fill: none;
  stroke: rgba(10, 11, 13, 0.55);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  /* Always fully opaque, on every device — on touch there is no hover
     to reveal it later, so it has to read as "clickable" permanently
     on its own. */
  opacity: 1;
  transition:
    transform var(--cm-duration-fast) var(--cm-ease-out),
    stroke var(--cm-duration-fast) var(--cm-ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .cm-aliados__chip:hover {
    border-color: var(--cm-blue-700);
  }

  .cm-aliados__chip:hover .cm-aliados__chip-arrow {
    stroke: var(--cm-blue-700);
    transform: translate(2px, -2px);
  }
}

.cm-aliados__chip:focus-visible {
  outline: 2px solid var(--cm-blue-700);
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .cm-aliados__chip:hover .cm-aliados__chip-arrow {
    transform: none;
  }
}

/* ---------- Logos — shared by all three rows ---------- */
/* Same class on row 1's chip wordmarks and rows 2-3's informational
   marks: identical height, identical resting/hover opacity treatment.
   Rows 2-3 trigger their own :hover directly on the <img>; a chip's
   logo brightens together with its arrow and underline when the
   parent <a> is hovered, since logo+arrow is one clickable block. */

.cm-aliados__logo {
  display: block;
  height: clamp(22px, 2.6vw, 28px);
  width: auto;
  opacity: 1;
  transition:
    opacity var(--cm-duration-fast) var(--cm-ease-out),
    transform var(--cm-duration-fast) var(--cm-ease-out);
}

/* Reduced resting opacity is a desktop/hover-capable nicety only — a
   touch visitor gets every logo at full opacity from the start, since
   there is no hover state to reveal it later. */
@media (hover: hover) and (pointer: fine) {
  .cm-aliados__logo {
    opacity: 0.75;
  }

  .cm-aliados__logo:hover,
  .cm-aliados__chip:hover .cm-aliados__logo {
    opacity: 1;
    transform: scale(1.06);
  }
}

@media (prefers-reduced-motion: reduce) {
  .cm-aliados__logo:hover,
  .cm-aliados__chip:hover .cm-aliados__logo {
    transform: none;
  }
}

/* The only source logo that ships in brand color instead of monochrome
   black — forced solid black to match its 9 neighbors. brightness(0)
   multiplies every RGB channel to 0 while preserving the PNG's alpha,
   so the wordmark stays crisp, just recolored. */
.cm-aliados__logo--google {
  filter: brightness(0);
}

/* ---------- Scroll-entrance cascade ---------- */
/* Row order: intro -> chips -> platforms -> stack, ~110ms apart; within
   a row, each item steps a further ~70ms. All --cm-duration-* already
   collapse to 1ms under prefers-reduced-motion (tokens.css), so every
   delay below is effectively instant there too. */

.cm-aliados__eyebrow,
.cm-aliados__row-label,
.cm-aliados__chip-list > li,
.cm-aliados__logo-list > li {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity var(--cm-duration-base) var(--cm-ease-out),
    transform var(--cm-duration-base) var(--cm-ease-out);
}

.cm-aliados.is-visible .cm-aliados__eyebrow,
.cm-aliados.is-visible .cm-aliados__row-label,
.cm-aliados.is-visible .cm-aliados__chip-list > li,
.cm-aliados.is-visible .cm-aliados__logo-list > li {
  opacity: 1;
  transform: translateY(0);
}

.cm-aliados__eyebrow {
  transition-delay: 0ms;
}

.cm-aliados__row--chips .cm-aliados__row-label {
  transition-delay: 100ms;
}

.cm-aliados__row--platforms .cm-aliados__row-label {
  transition-delay: 210ms;
}

.cm-aliados__row--stack .cm-aliados__row-label {
  transition-delay: 320ms;
}

.cm-aliados__row--chips .cm-aliados__chip-list > li:nth-child(1) {
  transition-delay: 150ms;
}

.cm-aliados__row--chips .cm-aliados__chip-list > li:nth-child(2) {
  transition-delay: 220ms;
}

.cm-aliados__row--chips .cm-aliados__chip-list > li:nth-child(3) {
  transition-delay: 290ms;
}

.cm-aliados__row--chips .cm-aliados__chip-list > li:nth-child(4) {
  transition-delay: 360ms;
}

.cm-aliados__row--platforms .cm-aliados__logo-list > li:nth-child(1) {
  transition-delay: 260ms;
}

.cm-aliados__row--platforms .cm-aliados__logo-list > li:nth-child(2) {
  transition-delay: 330ms;
}

.cm-aliados__row--platforms .cm-aliados__logo-list > li:nth-child(3) {
  transition-delay: 400ms;
}

.cm-aliados__row--platforms .cm-aliados__logo-list > li:nth-child(4) {
  transition-delay: 470ms;
}

.cm-aliados__row--stack .cm-aliados__logo-list > li:nth-child(1) {
  transition-delay: 370ms;
}

.cm-aliados__row--stack .cm-aliados__logo-list > li:nth-child(2) {
  transition-delay: 440ms;
}

.cm-aliados__row--stack .cm-aliados__logo-list > li:nth-child(3) {
  transition-delay: 510ms;
}

.cm-aliados__row--stack .cm-aliados__logo-list > li:nth-child(4) {
  transition-delay: 580ms;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .cm-aliados__row--platforms .cm-aliados__logo-list,
  .cm-aliados__row--stack .cm-aliados__logo-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    justify-items: center;
    column-gap: 1.75rem;
    row-gap: 1.75rem;
  }
}