/* ============================================================
   Estandar SG-SST — landing
   Capa 1: tokens · Capa 2: base · Capa 3: componentes
   Los primitivos vienen de la paleta de la app (app_palette.dart).
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* Marca */
  --navy-900: #0E223B;
  --navy-800: #0F1E34;
  --navy-700: #12355B;
  --navy-500: #1D4E89;
  --navy-200: #D6E3F5;
  --navy-100: #9FB5D4;
  --navy-050: #EAF2FF;

  /* Acento: turquesa solo sobre oscuro; teal-ink sobre claro */
  --teal:       #5CE1E6;
  --teal-hover: #7FEAEE;
  /* Variante oscura del turquesa de marca: el #5CE1E6 no alcanza AA sobre
     blanco (1.6:1). Este si (6.0:1). Se usa como acento sobre superficie clara. */
  --teal-ink:   #0B6E72;

  /* Superficies y texto */
  --white: #FFFFFF;
  --paper: #F3F6FB;
  --ink:   #0F172A;
  --ink-2: #475569;
  --ink-3: #5C6F8A;
  --rule:  #DCE5F1;

  /* Señal */
  --risk: #DC3545;
  --ok:   #0D8D55;

  /* Tipografía */
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --body: "IBM Plex Sans", system-ui, -apple-system, Segoe UI, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --serif: "IBM Plex Serif", Georgia, serif;

  /* Ritmo */
  --wrap: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);

  /* Forma y movimiento */
  --radius: 14px;
  --radius-control: 10px;
  --head-h: 4.5rem;
  --dur: 180ms;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  color-scheme: light;
  /* El header es sticky: sin esto, el ancla y el elemento enfocado quedan debajo. */
  scroll-padding-top: calc(var(--head-h) + 1rem);
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(1rem, 0.97rem + 0.16vw, 1.0625rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; }

/* Anillo de dos bandas: la interior contrasta sobre oscuro, la exterior sobre
   claro. Una sola regla que no hay que ramificar por seccion. */
:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
  box-shadow: 0 0 0 6px var(--teal-ink);
}

#contenido:focus { outline: none; box-shadow: none; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--navy-900);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
}
.skip:focus { left: 0; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Tipografía compartida ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 1.25rem;
}
.eyebrow--ink { color: var(--teal-ink); }

.h2 {
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 112%;
  font-size: clamp(1.85rem, 1.1rem + 2.6vw, 3rem);
  line-height: 1.06;
  letter-spacing: -0.022em;
  margin: 0 0 1.15rem;
  max-width: 20ch;
  text-wrap: balance;
}
.h2--light { color: var(--white); }

.lede {
  font-size: clamp(1.05rem, 1rem + 0.35vw, 1.2rem);
  line-height: 1.6;
  text-wrap: pretty;
  color: var(--ink-2);
  max-width: 62ch;
  margin: 0 0 2.5rem;
}
.lede--light { color: var(--navy-100); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  padding: 0.85rem 1.35rem;
  min-height: 44px;
  border-radius: var(--radius-control);
  border: 1.5px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--dur) ease, background-color var(--dur) ease,
              border-color var(--dur) ease, color var(--dur) ease;
}
.btn, .node, .ccard, .head__nav a, .foot__links a, .brand, .field__select {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--lg { padding: 1.05rem 1.75rem; font-size: 1rem; }

.btn--wa {
  background: var(--teal);
  color: var(--navy-900);
}
.btn--wa:hover { background: var(--teal-hover); }

.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.42);
}
.btn--ghost:hover { border-color: var(--teal); color: var(--teal); }

.ico { width: 20px; height: 20px; fill: currentColor; flex: none; }

/* ---------- Header ---------- */
.head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(14, 34, 59, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.head__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 1.5rem;
  min-height: 72px;
}
@media (min-width: 900px) { .head__row { flex-wrap: nowrap; } }

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--white);
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 112%;
  letter-spacing: -0.01em;
  font-size: 1.05rem;
}
.brand__mark { border-radius: 8px; }
.brand__suffix { color: var(--navy-100); font-weight: 500; }

.head__nav {
  display: flex;
  order: 3;
  width: 100%;
  gap: 1.5rem;
  font-size: 0.9rem;
  overflow-x: auto;
  scrollbar-width: none;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.head__nav::-webkit-scrollbar { display: none; }
.head__nav a { white-space: nowrap; }
.head__nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--navy-100);
  text-decoration: none;
  border-bottom: 1.5px solid transparent;
}
.head__nav a:hover { color: var(--white); border-bottom-color: var(--teal); }

.head__cta { margin-left: auto; padding: 0.65rem 1.1rem; }

@media (min-width: 900px) {
  .head__nav {
    order: 0;
    width: auto;
    margin-left: auto;
    gap: 1.75rem;
    overflow-x: visible;
    border-top: 0;
  }
  .head__cta { margin-left: 0; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1100px 520px at 78% -8%, var(--navy-500) 0%, transparent 62%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: var(--white);
  padding-block: clamp(3.5rem, 8vw, 6.5rem) clamp(4rem, 9vw, 7rem);
}

.hero__watermark {
  position: absolute;
  right: -14%;
  top: 50%;
  width: min(760px, 78vw);
  transform: translateY(-50%);
  opacity: 0.06;
  pointer-events: none;
  filter: saturate(0);
}

.hero__grid {
  position: relative;
  display: grid;
  gap: clamp(3rem, 6vw, 4.5rem);
  align-items: center;
}
@media (min-width: 1000px) {
  .hero__grid { grid-template-columns: 1.12fr 0.88fr; }
}

.hero__title {
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 118%;
  font-size: clamp(2.35rem, 1.5rem + 3.1vw, 3.85rem);
  line-height: 1.03;
  letter-spacing: -0.03em;
  margin: 0 0 1.5rem;
  max-width: 15ch;
  text-wrap: balance;
}
.hero__title em {
  font-style: normal;
  color: var(--teal);
}

.hero__lead {
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem);
  line-height: 1.6;
  color: var(--navy-100);
  max-width: 52ch;
  margin: 0 0 2.25rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.hero__note {
  font-size: 0.875rem;
  color: rgba(159, 181, 212, 0.85);
  margin: 0;
  max-width: 46ch;
}

/* ---------- Trazo de evidencia (hero) ---------- */
.trace {
  margin: 0;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(159, 181, 212, 0.22);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.1rem);
  backdrop-filter: blur(4px);
}

.trace__cap {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.5rem;
}

.trace__list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.trace__item {
  position: relative;
  padding-left: 2rem;
  padding-bottom: 1.5rem;
}

/* La entrada escalonada solo existe si hay movimiento permitido. El estado
   base es visible: una pestana en segundo plano nunca avanza la animacion. */
@media (prefers-reduced-motion: no-preference) {
  .trace__item {
    opacity: 0;
    animation: trace-in 520ms var(--ease) forwards;
    animation-delay: calc(220ms + var(--i) * 130ms);
  }
}
.trace__item:last-child { padding-bottom: 0; }

/* Punto */
.trace__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.42em;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--navy-900);
  border: 2px solid var(--teal);
}
/* Conector */
.trace__item::after {
  content: "";
  position: absolute;
  left: 5px;
  top: calc(0.42em + 13px);
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--teal), rgba(92, 225, 230, 0.15));
}
.trace__item:last-child::after { display: none; }

.trace__key {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--teal);
  margin-bottom: 0.2rem;
}
.trace__val {
  display: block;
  font-size: 0.95rem;
  color: var(--white);
  line-height: 1.45;
}

.trace__foot {
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(159, 181, 212, 0.18);
  font-size: 0.85rem;
  color: var(--navy-100);
}

@keyframes trace-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- Secciones ---------- */
.section { padding-block: var(--section-y); }
.section--paper { background: var(--paper); }
.section--dark {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-700) 100%);
  color: var(--white);
}

/* ---------- Lo que está en juego ---------- */
.stakes {
  list-style: none;
  margin: 0 0 3rem;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 820px) {
  .stakes { grid-template-columns: repeat(3, 1fr); }
}

.stake {
  background: var(--white);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--risk);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
}

.stake__tag {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.stake__tag--risk { color: var(--risk); }

.stake__text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-2);
  line-height: 1.6;
}

/* Cita normativa: serif = la norma */
.norma {
  margin: 0;
  padding: 1.5rem 0 1.5rem 1.75rem;
  border-left: 3px solid var(--navy-700);
  max-width: 60ch;
}
.norma p {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  line-height: 1.5;
  color: var(--navy-700);
  margin: 0 0 0.75rem;
}
.norma cite {
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- La cadena (elemento firma) ---------- */
.chain__hint {
  font-size: 0.9rem;
  color: var(--navy-100);
  margin: 0 0 2rem;
}
.chain__hint-kbd {
  display: block;
  font-size: 0.82rem;
  color: var(--navy-100);
  margin-top: 0.25rem;
}

.chain {
  display: grid;
  gap: 1.5rem 1.1rem;
  margin-bottom: 1.25rem;
}
@media (min-width: 760px) {
  .chain { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1080px) {
  .chain { grid-template-columns: repeat(6, 1fr); }
}

.chain__col {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  position: relative;
}

.chain__phase {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(92, 225, 230, 0.28);
}

.node {
  font-family: var(--body);
  font-size: 0.83rem;
  line-height: 1.35;
  font-weight: 500;
  text-align: left;
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(159, 181, 212, 0.55);
  border-radius: var(--radius-control);
  padding: 0.7rem 0.8rem;
  min-height: 44px;
  cursor: pointer;
  transition: background-color var(--dur) ease, border-color var(--dur) ease,
              color var(--dur) ease, transform var(--dur) ease;
}
.node:hover { border-color: var(--teal); }
.node:active { transform: translateY(0); }

/* Estados de la cadena.
   El desenfasis es por color, no por `opacity`: atenuar el boton entero dejaba
   las etiquetas en 2.3:1, y para quien navega con teclado ese es el estado
   permanente mientras recorre la cadena. */
.chain.is-exploring .node {
  color: var(--navy-100);
  background: rgba(255, 255, 255, 0.02);
  border-color: rgba(159, 181, 212, 0.18);
}
.chain.is-exploring .node.is-required {
  color: var(--white);
  border-color: var(--teal);
  background: rgba(92, 225, 230, 0.12);
}
.chain.is-exploring .node.is-active {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--navy-900);
  font-weight: 600;
  transform: translateY(-2px);
}

.chain__readout {
  min-height: 3.25rem;
  margin: 0 0 3.5rem;
  padding: 0.9rem 1.1rem;
  border-left: 2px solid var(--teal);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 0 8px 8px 0;
  font-size: 0.9rem;
  color: var(--navy-100);
}
.chain__readout strong { color: var(--white); font-weight: 600; }
.chain__readout em {
  font-style: normal;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.82rem;
}

/* Reglas de bloqueo */
.rules {
  border-top: 1px solid rgba(159, 181, 212, 0.2);
  padding-top: 2.75rem;
}
.rules__title {
  font-family: var(--display);
  font-weight: 600;
  font-stretch: 108%;
  font-size: 1.3rem;
  letter-spacing: -0.012em;
  margin: 0 0 1.5rem;
  color: var(--white);
}
.rules__list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  gap: 0.7rem 2rem;
  font-size: 0.92rem;
  color: var(--navy-100);
}
@media (min-width: 780px) {
  .rules__list { grid-template-columns: 1fr 1fr; }
}
.rules__list li {
  position: relative;
  padding-left: 1.6rem;
}
.rules__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 2px;
  background: var(--teal);
}
.rules__foot {
  margin: 0;
  font-size: 0.88rem;
  color: var(--navy-100);
  max-width: 62ch;
}

/* ---------- Calculadora de estándares ---------- */
.std__grid {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}
@media (min-width: 940px) {
  .std__grid { grid-template-columns: 1.05fr 0.95fr; }
}

.std__note {
  font-size: 0.88rem;
  color: var(--ink-3);
  margin: 0;
  max-width: 52ch;
}

.std__card {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.field { margin-bottom: 1.25rem; }

.field__label {
  display: block;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.45rem;
}

.field__select {
  width: 100%;
  font-family: var(--body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--white);
  border: 1.5px solid var(--ink-3);
  border-radius: var(--radius-control);
  padding: 0.8rem 0.95rem;
  min-height: 48px;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23475569'%3E%3Cpath d='M5.5 7.5 10 12l4.5-4.5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 20px;
  padding-right: 2.6rem;
}
.field__select:hover { border-color: var(--navy-700); }
.field__select:disabled {
  color: var(--ink-3);
  background-color: var(--paper);
  border-color: var(--rule);
  cursor: not-allowed;
}

.std__out {
  display: block;
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--rule);
}

.std__count {
  display: block;
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 118%;
  font-size: clamp(3rem, 2rem + 4vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.035em;
  color: var(--navy-700);
}
.std__count.is-word { font-size: clamp(1.8rem, 1.2rem + 2.4vw, 2.8rem); }

.std__unit {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  margin-top: 0.4rem;
}

.std__why {
  display: block;
  font-size: 0.9rem;
  color: var(--ink-2);
  margin-top: 0.6rem;
  max-width: 42ch;
}

/* ---------- Módulos ---------- */
.mods {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .mods { grid-template-columns: 1fr 1fr; gap: 3rem 3.5rem; }
}

.mods__group { margin: 0; }

.mods__phase {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal-ink);
  margin: 0 0 1.25rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--rule);
}

.mods__list { margin: 0; }

.mod { padding-block: 0.9rem; }
.mod + .mod { border-top: 1px solid var(--rule); }

.mod dt {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--navy-700);
  margin-bottom: 0.2rem;
}
.mod dd {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-2);
  line-height: 1.55;
}

/* ---------- Indicadores ---------- */
.kpis {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}
@media (min-width: 720px) { .kpis { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1040px) { .kpis { grid-template-columns: repeat(3, 1fr); } }

.kpi {
  background: var(--white);
  padding: 1.35rem 1.4rem;
}
.kpi__key {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--teal-ink);
  margin-bottom: 0.4rem;
  word-break: break-word;
}
.kpi__name {
  display: block;
  font-weight: 600;
  color: var(--navy-700);
  font-size: 0.98rem;
}

.kpis__extra {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-2);
  max-width: 64ch;
}

/* ---------- Plataforma ---------- */
.plat__grid {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}
@media (min-width: 960px) {
  .plat__grid { grid-template-columns: 1.25fr 0.75fr; }
}

.plat__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.plat__list li {
  position: relative;
  padding-left: 1.75rem;
  font-size: 0.96rem;
  color: var(--ink-2);
  line-height: 1.55;
}
.plat__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 10px;
  border: 2px solid var(--teal-ink);
  border-radius: 3px;
}
.plat__list strong { color: var(--navy-700); font-weight: 600; }

.road {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.75rem 1.6rem;
}
.road__title {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 0.85rem;
}
.road__intro {
  margin: 0 0 1rem;
  font-size: 0.92rem;
  color: var(--ink-2);
}
.road__list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  font-size: 0.92rem;
  color: var(--navy-700);
  font-weight: 500;
}
.road__list li {
  padding-block: 0.55rem;
  border-bottom: 1px dashed var(--rule);
}
.road__list li:last-child { border-bottom: 0; }
.road__foot {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-3);
}

/* ---------- Contacto ---------- */
/* Gana por especificidad, no por orden de fuente. */
.section--dark.section--contact {
  background: linear-gradient(180deg, var(--navy-700) 0%, var(--navy-900) 100%);
}

.contact__grid {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}
@media (min-width: 940px) {
  .contact__grid { grid-template-columns: 1fr 1fr; }
}

.contact__cards {
  display: grid;
  gap: 1rem;
}

.ccard {
  display: block;
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(159, 181, 212, 0.26);
  border-radius: var(--radius);
  padding: 1.6rem 1.6rem 1.5rem;
  text-decoration: none;
  color: var(--white);
  transition: border-color var(--dur) ease, background-color var(--dur) ease,
              transform var(--dur) ease;
}
.ccard:hover {
  border-color: var(--teal);
  background: rgba(92, 225, 230, 0.08);
  transform: translateY(-2px);
}
.ccard:active { transform: translateY(0); }

.ccard__ico {
  width: 26px;
  height: 26px;
  fill: var(--teal);
  margin-bottom: 0.9rem;
}

.ccard__label {
  display: block;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy-100);
  margin-bottom: 0.35rem;
}

.ccard__value {
  display: block;
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 110%;
  font-size: clamp(1.35rem, 1rem + 1.4vw, 1.85rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  word-break: break-word;
}

.ccard__hint {
  display: block;
  font-size: 0.85rem;
  color: var(--navy-100);
  margin-top: 0.5rem;
}

.ccard--wa { border-color: rgba(92, 225, 230, 0.45); }

/* ---------- Footer ---------- */
.foot {
  background: var(--navy-900);
  color: var(--navy-100);
  padding-block: 2.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.foot__row {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}
@media (min-width: 880px) {
  .foot__row { grid-template-columns: auto 1fr auto; gap: 2.5rem; }
}

.foot__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--white);
  font-family: var(--display);
  font-weight: 600;
  font-stretch: 108%;
  font-size: 0.98rem;
}
.foot__brand img { border-radius: 6px; }

.foot__legal {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.5;
  max-width: 58ch;
}

.foot__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.85rem;
}
.foot__links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.foot__links a:hover { border-bottom-color: var(--teal); }

/* ---------- Movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .btn:hover, .ccard:hover, .chain.is-exploring .node.is-active { transform: none; }
}