/* Página pública. Lienzo de diseño 2048×1455 escalado con una sola unidad (--u). */
.landing {
  --fondo-l: #0B1018;
  --texto-l: #FFFFFF;
  --gris-nav: #B4BDC9;
  --gris-texto: #C9D3DE;
  --gris-marca: #BAC4CF;
  --gris-fila: #8C99A9;
  --u: max(0.468px, min(calc(100vh / 1455), calc(100vw / 2048)));
  --vidrio-fondo: rgb(var(--tinta) / 0.025);
  --vidrio-linea: rgb(var(--tinta) / 0.16);
  margin: 0;
  min-height: 100vh;
  background-color: var(--fondo-l);
  background-image:
    radial-gradient(ellipse 60% 70% at 75% 45%, rgba(61, 134, 198, 0.16), transparent 70%),
    radial-gradient(ellipse 40% 40% at 85% 85%, rgba(242, 140, 60, 0.10), transparent 70%);
  overflow-x: hidden;
}
/* Cuadrícula tenue que se desvanece hacia los bordes */
.landing::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgb(var(--tinta) / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgb(var(--tinta) / 0.035) 1px, transparent 1px);
  background-size: calc(var(--u) * 96) calc(var(--u) * 96);
  background-position: center top;
  -webkit-mask-image: radial-gradient(ellipse 80% 75% at 50% 45%, #000 30%, transparent 85%);
  mask-image: radial-gradient(ellipse 80% 75% at 50% 45%, #000 30%, transparent 85%);
}

.vidrio {
  background: var(--vidrio-fondo);
  border: 1px solid var(--vidrio-linea);
  -webkit-backdrop-filter: blur(8px) brightness(1.15) saturate(0.8);
  backdrop-filter: blur(8px) brightness(1.15) saturate(0.8);
  box-shadow: inset 0 1px 0 rgb(var(--tinta) / 0.08), inset 0 0 24px rgb(var(--tinta) / 0.025);
}

/* ---------- Lienzo de escritorio ---------- */
.lienzo {
  position: relative;
  width: calc(var(--u) * 2048);
  height: calc(var(--u) * 1455);
  margin: 0 auto;
  min-height: 100vh;
}

.cabecera {
  position: absolute; left: calc(var(--u) * 150); right: calc(var(--u) * 150); top: 0;
  height: calc(var(--u) * 148);
  display: flex; align-items: center; justify-content: space-between;
  z-index: 5;
}
.marca-l { display: flex; align-items: center; gap: calc(var(--u) * 22); text-decoration: none; }
.baldosa {
  width: calc(var(--u) * 70); height: calc(var(--u) * 69);
  border-radius: calc(var(--u) * 18);
  background: linear-gradient(145deg, #2F6FA8, #8EC5F2);
  box-shadow: 0 0 calc(var(--u) * 40) rgba(95, 168, 232, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: calc(var(--u) * 5);
}
.baldosa i { width: calc(var(--u) * 13); height: calc(var(--u) * 13); border-radius: 50%; background: rgba(11, 16, 24, 0.55); }
.baldosa i:last-child { background: #fff; box-shadow: 0 0 calc(var(--u) * 10) #fff; }
.palabra { font-family: var(--display); font-size: calc(var(--u) * 38); font-weight: 500; color: var(--gris-marca); letter-spacing: -0.01em; }
.palabra span { color: #8EC5F2; }

.acciones-l { display: flex; align-items: center; gap: calc(var(--u) * 44); }
.enlace-entrar { color: var(--gris-nav); text-decoration: none; font-size: calc(var(--u) * 27); font-weight: 500; }
.enlace-entrar:hover { color: var(--texto-l); }
.pastilla-vidrio {
  display: inline-flex; align-items: center; justify-content: center;
  height: calc(var(--u) * 63); padding: 0 calc(var(--u) * 36);
  border-radius: 999px; color: var(--texto-l); text-decoration: none;
  font-size: calc(var(--u) * 26); font-weight: 600;
  background: var(--vidrio-fondo); border: 1px solid var(--vidrio-linea);
  -webkit-backdrop-filter: blur(8px) brightness(1.15); backdrop-filter: blur(8px) brightness(1.15);
  transition: border-color .2s, background .2s;
}
.pastilla-vidrio:hover { border-color: rgba(142, 197, 242, 0.7); background: rgba(142, 197, 242, 0.08); }
.boton-menu, .menu-movil { display: none; }

/* Columna izquierda */
.columna { position: absolute; left: calc(var(--u) * 150); top: calc(var(--u) * 318); width: calc(var(--u) * 860); z-index: 3; }
.titular {
  font-family: var(--display);
  font-size: calc(var(--u) * 104); line-height: calc(var(--u) * 122);
  font-weight: 420; letter-spacing: -0.025em; margin: 0;
  font-variation-settings: 'opsz' 96;
}
.linea { display: block; overflow: hidden; padding-bottom: calc(var(--u) * 6); margin-bottom: calc(var(--u) * -6); }
.linea > span {
  display: inline-block; white-space: nowrap;
  background: linear-gradient(90deg, #FFFFFF 0%, #FFFFFF 55%, #9FB0C4 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.sublinea { margin-top: calc(var(--u) * 44); font-size: calc(var(--u) * 29.5); line-height: 1.5; color: var(--gris-texto); max-width: calc(var(--u) * 760); }

.botones { display: flex; gap: calc(var(--u) * 20); margin-top: calc(var(--u) * 56); }
.boton-l {
  display: inline-flex; align-items: center; justify-content: center;
  height: calc(var(--u) * 85); padding: 0 calc(var(--u) * 52);
  border-radius: 999px; text-decoration: none;
  font-size: calc(var(--u) * 28); font-weight: 600;
  transition: transform .2s, box-shadow .2s, background .2s, border-color .2s;
}
.boton-primario-l {
  color: #0B1018;
  background: linear-gradient(135deg, #5FA8E8, #CFE6FA);
  box-shadow: 0 calc(var(--u) * 12) calc(var(--u) * 40) rgba(95, 168, 232, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}
.boton-primario-l:hover { box-shadow: 0 calc(var(--u) * 14) calc(var(--u) * 50) rgba(95, 168, 232, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.6); }
.boton-vidrio-l {
  color: var(--texto-l);
  background: rgba(13, 19, 28, 0.55); border: 1px solid var(--vidrio-linea);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.boton-vidrio-l:hover { border-color: rgba(246, 176, 122, 0.7); }

.cifras-l { display: flex; margin: calc(var(--u) * 82) 0 0; }
.cifras-l div { display: flex; flex-direction: column-reverse; padding: 0 calc(var(--u) * 44); border-left: 1px solid rgb(var(--tinta) / 0.14); }
.cifras-l div:first-child { padding-left: 0; border-left: 0; }
.cifras-l dd { margin: 0; font-family: var(--display); font-size: calc(var(--u) * 50); font-weight: 420; color: var(--texto-l); line-height: 1.1; }
.cifras-l dt { font-size: calc(var(--u) * 25); color: var(--gris-fila); margin-top: calc(var(--u) * 6); white-space: nowrap; }

/* Arte a la derecha */
.arte {
  position: absolute; width: calc(var(--u) * 1120); height: calc(var(--u) * 1120);
  left: calc(var(--u) * (1550 - 560)); top: calc(var(--u) * 170);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 52%, transparent 72%);
  mask-image: radial-gradient(circle at 50% 50%, #000 52%, transparent 72%);
  z-index: 1;
}
.losas { width: 100%; height: 100%; overflow: visible; }
.losa { animation: flotar 6s ease-in-out infinite; transform-box: view-box; }
.l2 { animation-delay: -1.5s; }
.l3 { animation-delay: -3s; }
.l4 { animation-delay: -4.5s; animation-duration: 8s; }
@keyframes flotar { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.bloques rect { animation: parpadeo 3.2s steps(1) infinite; }
.bloques rect:nth-child(3n) { animation-delay: -1.1s; }
.bloques rect:nth-child(4n+1) { animation-delay: -2.2s; }
.bloques rect:nth-child(5n+2) { animation-duration: 4.4s; }
@keyframes parpadeo { 0%, 100% { opacity: 0.9; } 33% { opacity: 0.35; } 66% { opacity: 0.65; } }
.ondas path { stroke-dasharray: 18 14; animation: fluir 2.4s linear infinite; }
.ondas path:nth-child(2) { animation-duration: 3.2s; }
.ondas path:nth-child(3) { animation-duration: 4s; }
@keyframes fluir { to { stroke-dashoffset: -64; } }
.puntos circle { transition: fill .6s, opacity .6s; }

.mini-semaforo {
  position: absolute; left: calc(var(--u) * 1640); top: calc(var(--u) * 205); z-index: 4;
  display: flex; align-items: center; gap: calc(var(--u) * 8);
  padding: calc(var(--u) * 10) calc(var(--u) * 18) calc(var(--u) * 10) calc(var(--u) * 12);
  border-radius: 999px;
}
.mini-semaforo span { width: calc(var(--u) * 16); height: calc(var(--u) * 16); border-radius: 50%; background: rgb(var(--tinta) / 0.12); }
.mini-semaforo span.on { background: #4CC38A; box-shadow: 0 0 calc(var(--u) * 14) #4CC38A; }
.mini-semaforo b { font-weight: 500; font-size: calc(var(--u) * 22); color: #D8F3E6; margin-left: calc(var(--u) * 6); }

/* Tarjetas de vidrio */
.tarjeta-l {
  position: absolute; min-width: calc(var(--u) * 451); min-height: calc(var(--u) * 201);
  border-radius: calc(var(--u) * 18);
  display: flex; gap: calc(var(--u) * 24); align-items: flex-start;
  padding: calc(var(--u) * 32) calc(var(--u) * 30);
  z-index: 4;
}
.t1 { left: calc(var(--u) * 1000); top: calc(var(--u) * 300); }
.t2 { left: calc(var(--u) * 1520); top: calc(var(--u) * 990); }
.icono-l {
  flex: none; width: calc(var(--u) * 63); height: calc(var(--u) * 63);
  border-radius: calc(var(--u) * 14);
  display: grid; place-items: center;
  color: #CFE6FA; background: rgba(95, 168, 232, 0.16); border: 1px solid rgba(142, 197, 242, 0.35);
}
.icono-l.naranja { color: #FBD6B5; background: rgba(246, 176, 122, 0.14); border-color: rgba(246, 176, 122, 0.4); }
.icono-l svg { width: 58%; height: 58%; }
.antetitulo { font-size: calc(var(--u) * 23); color: #CFE6FA; font-weight: 500; margin-bottom: calc(var(--u) * 8); }
.t2 .antetitulo { color: #FBD6B5; }
.titulo-t { font-size: calc(var(--u) * 27); line-height: 1.35; color: var(--texto-l); font-weight: 500; white-space: nowrap; }

/* ---------- Pantallas angostas o verticales: una sola columna ---------- */
@media (max-width: 900px), (max-aspect-ratio: 5/4) {
  .landing { --f: clamp(0.55px, calc(0.449px + 0.0284vw), 0.76px); --m: clamp(16px, 5vw, 40px); }
  .lienzo { width: auto; height: auto; padding: 0 var(--m) calc(var(--f) * 80); display: flex; flex-direction: column; }
  .cabecera, .columna, .arte, .tarjeta-l, .fila-usos { position: relative; left: auto; right: auto; top: auto; bottom: auto; }
  .cabecera { height: 76px; }
  .baldosa { width: 44px; height: 44px; border-radius: 12px; gap: 3px; box-shadow: 0 0 24px rgba(95, 168, 232, 0.4), inset 0 1px 0 rgba(255,255,255,.35); }
  .baldosa i { width: 8px; height: 8px; }
  .marca-l { gap: 12px; }
  .palabra { font-size: 20px; }
  .acciones-l { display: none; }
  .boton-menu {
    display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
    background: var(--vidrio-fondo); border: 1px solid var(--vidrio-linea); color: #fff; cursor: pointer; padding: 0;
  }
  .boton-menu svg { width: 22px; height: 22px; }
  .menu-movil {
    position: absolute; right: 0; top: 70px; z-index: 10;
    display: flex; flex-direction: column; min-width: 200px; padding: 8px; border-radius: 16px;
    background: rgba(18, 26, 37, 0.75);
  }
  .menu-movil[hidden] { display: none; }
  .menu-movil a { color: #fff; text-decoration: none; padding: 12px 14px; border-radius: 10px; font-weight: 500; }
  .menu-movil a:hover { background: rgb(var(--tinta) / 0.06); }

  .columna { width: auto; text-align: center; margin-top: calc(var(--f) * 70); }
  .titular { font-size: clamp(40px, 11vw, 76px); line-height: 1.12; }
  .linea > span { white-space: normal; background: linear-gradient(90deg, #9FB0C4, #FFFFFF 30%, #FFFFFF 70%, #9FB0C4); -webkit-background-clip: text; background-clip: text; }
  .sublinea { font-size: clamp(16px, 4.2vw, 20px); max-width: 34em; margin: 20px auto 0; }
  .botones { justify-content: center; margin-top: 28px; flex-wrap: wrap; }
  .boton-l { height: 52px; padding: 0 28px; font-size: 16px; }
  .cifras-l { justify-content: center; margin-top: 36px; }
  .cifras-l div { padding: 0 clamp(12px, 4vw, 28px); }
  .cifras-l dd { font-size: clamp(24px, 7vw, 34px); }
  .cifras-l dt { font-size: clamp(12px, 3.2vw, 14px); max-width: 9em; }

  .arte { width: min(100%, 560px); height: auto; aspect-ratio: 1; margin: 24px auto 0; }
  .mini-semaforo { display: none; }
  .titulo-t { white-space: normal; }
  .cifras-l dt { white-space: normal; }
  .mini-semaforo span { width: 10px; height: 10px; }
  .mini-semaforo b { font-size: 12px; }
  .tarjeta-l { width: min(88%, 380px); min-height: 0; padding: 18px; gap: 14px; border-radius: 16px; }
  .t1 { margin: -22% auto 0 0; }
  .t2 { margin: 14px 0 0 auto; }
  .icono-l { width: 44px; height: 44px; border-radius: 12px; }
  .antetitulo { font-size: 13px; margin-bottom: 4px; }
  .titulo-t { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .losa, .bloques rect, .ondas path { animation: none !important; }
}

/* ================= Modelo "Aurora de cuentas" (ver DISENO.md) ================= */
.landing {
  --texto-l: var(--texto);
  --gris-texto: var(--sub);
  --gris-nav: rgb(var(--texto-rgb) / 0.9);
  background-color: hsl(260 87% 3%);
  background-image:
    radial-gradient(ellipse 70% 55% at 8% -5%, rgba(99, 102, 241, 0.32), transparent 65%),
    radial-gradient(ellipse 50% 50% at 78% 40%, rgba(95, 168, 232, 0.14), transparent 70%),
    radial-gradient(ellipse 65% 45% at 100% 105%, rgba(242, 140, 60, 0.24), transparent 70%),
    linear-gradient(165deg, #0C0A2A 0%, #06020F 38%, #07030F 70%, #130A0C 100%);
  background-attachment: fixed;
  color: var(--texto-l);
}
.landing::before { opacity: 0.6; }
.cabecera::after {
  content: ''; position: absolute; left: calc(var(--u) * -150); right: calc(var(--u) * -150); bottom: 3px; height: 1px;
  background: linear-gradient(90deg, transparent, rgb(var(--texto-rgb) / 0.2), transparent);
}
.baldosa { background: linear-gradient(150deg, #6366F1, #A855F7 55%, #FCD34D); box-shadow: 0 0 calc(var(--u) * 40) rgba(168, 85, 247, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.4); }
.palabra { color: var(--texto-l); }
.palabra span { color: var(--gris-texto); opacity: 0.7; }
.pastilla-vidrio { border: 0; }

.columna .mancha { width: 120%; height: 110%; left: 45%; }
.titular { font-weight: 500; letter-spacing: -0.024em; line-height: 1.02; font-size: calc(var(--u) * 118); }
.titular .linea { padding-bottom: calc(var(--u) * 10); margin-bottom: calc(var(--u) * -4); }
.titular .linea > span { background: none; color: var(--texto-l); -webkit-background-clip: border-box; background-clip: border-box; }
.titular .linea:last-child > span { background: linear-gradient(to left, #6366F1, #A855F7, #FCD34D); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sublinea { color: var(--gris-texto); opacity: 0.8; margin-top: calc(var(--u) * 24); line-height: 1.75; }
.boton-primario-l {
  color: #0A0618;
  background: linear-gradient(135deg, #CFE6FA, #8EC5F2 55%, #A9A8F7);
  box-shadow: 0 calc(var(--u) * 14) calc(var(--u) * 44) rgba(99, 102, 241, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.7);
}
.boton-primario-l:hover { box-shadow: 0 calc(var(--u) * 16) calc(var(--u) * 54) rgba(99, 102, 241, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.7); }
.boton-vidrio-l { border: 0; background: rgb(var(--tinta) / 0.01); }
.boton-vidrio-l:hover { background: rgb(var(--tinta) / 0.06); }
.cifras-l dd { font-weight: 500; letter-spacing: -0.02em; }
.cifras-l dt { color: rgb(var(--texto-rgb) / 0.5); }
.tarjeta-l { border-radius: calc(var(--u) * 22); }
.icono-l { border: 0; background: rgba(99, 102, 241, 0.18); box-shadow: inset 0 1px 1px rgb(var(--tinta) / 0.15); }
.icono-l.naranja { background: rgba(252, 211, 77, 0.12); }
.mini-semaforo span.on { background: #4CC38A; }

/* Marquesina inferior (instructivo: texto fijo a la izquierda, logos que corren a la derecha) */
.fila-usos {
  position: absolute; left: 50%; bottom: calc(var(--u) * 56); transform: translateX(-50%);
  width: min(calc(var(--u) * 1700), 100% - 32px); max-width: 64rem;
  display: flex; align-items: center; gap: 48px; z-index: 3; margin: 0;
}
.fila-t { flex: none; font-size: 0.875rem; line-height: 1.4; color: rgb(var(--texto-rgb) / 0.5); margin: 0; }
.pista-l {
  flex: 1; min-width: 0; overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.cinta-l { display: flex; width: max-content; animation: marquesina-l 20s linear infinite; }
@keyframes marquesina-l { to { transform: translateX(-50%); } }
.uso { display: inline-flex; align-items: center; gap: 10px; margin-right: 64px; white-space: nowrap; font-size: 1rem; font-weight: 600; color: var(--texto-l); }
.uso .inicial { width: 24px; height: 24px; border-radius: 8px; display: inline-grid; place-items: center; font-size: 0.75rem; font-weight: 600; }

@media (max-width: 900px), (max-aspect-ratio: 5/4) {
  .titular { font-size: clamp(42px, 12vw, 80px); line-height: 1.02; }
  .titular .linea > span { white-space: normal; }
  .columna .mancha { width: 100%; left: 50%; }
  .fila-usos { position: relative; left: auto; bottom: auto; transform: none; width: auto; margin-top: 48px; gap: 20px; }
  .fila-t { font-size: 0.78rem; }
  .cabecera::after { left: calc(var(--m) * -1); right: calc(var(--m) * -1); }
}
@media (prefers-reduced-motion: reduce) {
  .cinta-l { animation: none; flex-wrap: wrap; width: auto; row-gap: 12px; }
  .cinta-l [aria-hidden='true'] { display: none; }
}