/* ==========================================================================
   AUSTRAL VERTEX — hoja de estilos
   Identidad: negro espacial / plata / violeta eléctrico · Manrope + Inter
   Orden: 1 tokens · 2 base · 3 utilidades · 4 componentes · 5 secciones
   ========================================================================== */

/* ----------------------------------------------------------- 1. TOKENS -- */
:root{
  /* Paleta oficial */
  --negro:#0A0A0A;
  --plata:#D0D5DD;
  --violeta:#6F3CFF;

  /* Apoyo (definidos por la marca para legibilidad) */
  --violeta-claro:#A58BFF;   /* violeta en texto chico sobre negro */
  --violeta-hover:#4B22C9;
  --tinte:#F1ECFF;
  --grafito:#16161C;         /* tarjetas sobre negro */
  --niebla:#F4F5F7;          /* secciones claras */
  --txt-2-osc:#A3A9B5;       /* secundario sobre negro */
  --txt-2-cla:#5B6170;       /* secundario sobre claro */
  --plata-osc:#9AA0AA;

  /* Superficies y líneas */
  --bg:var(--negro);
  --bg-alt:#0D0D12;
  --linea:rgba(208,213,221,.12);
  --linea-fuerte:rgba(208,213,221,.22);

  /* Tipografía */
  --display:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  --texto:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;

  /* Medidas */
  --r:10px;                  /* radio de esquinas de la marca */
  --r-sm:8px;
  --gutter:20px;
  --max:1180px;
  --sec-y:clamp(68px,10vw,124px);

  /* Movimiento */
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ------------------------------------------------------------- 2. BASE -- */
*,*::before,*::after{box-sizing:border-box}

/* El atributo hidden gana siempre (si no, display:grid/flex lo pisa) */
[hidden]{display:none!important}

html{
  background:var(--bg);
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:84px;
}

body{
  margin:0;
  background:var(--bg);
  color:#fff;
  font-family:var(--texto);
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

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

h1,h2,h3{
  font-family:var(--display);
  font-weight:700;
  line-height:1.08;
  letter-spacing:-.035em;
  margin:0;
  text-wrap:balance;
}
h1{font-size:clamp(31px,6.2vw,62px)}
h2{font-size:clamp(25px,4.2vw,44px);font-weight:600}
h3{font-size:clamp(17px,2.2vw,20px);font-weight:600;letter-spacing:-.02em;line-height:1.25}
p{margin:0}

a{color:inherit}

/* Foco visible en todo elemento interactivo */
:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--violeta-claro);
  outline-offset:3px;
  border-radius:4px;
}

.skip{
  position:absolute;left:-9999px;top:8px;z-index:200;
  background:var(--violeta);color:#fff;padding:10px 16px;border-radius:var(--r-sm);
  font:600 13px/1 var(--texto);
}
.skip:focus{left:12px}

/* -------------------------------------------------------- 3. UTILIDADES -- */
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.wrap--narrow{max-width:760px}

.eyebrow{
  font:600 11px/1.4 var(--texto);
  letter-spacing:.24em;text-transform:uppercase;
  color:var(--txt-2-osc);margin-bottom:18px;
}

/* Etiqueta de sección: 01 ETIQUETA */
.kicker{
  display:flex;align-items:center;gap:12px;
  font:600 11px/1 var(--texto);
  letter-spacing:.22em;text-transform:uppercase;
  color:var(--txt-2-osc);margin-bottom:20px;
}
.kicker b{font-family:var(--display);font-size:13px;color:var(--violeta-claro);letter-spacing:0}

/* Regla corta violeta bajo el título — firma gráfica de la marca */
.rule{width:46px;height:3px;background:var(--violeta);border-radius:2px;margin:22px 0 0}

.sec__lead{
  margin-top:22px;max-width:62ch;
  color:var(--txt-2-osc);font-size:clamp(15px,1.6vw,17px);
}

.lead{
  margin-top:22px;max-width:60ch;
  color:var(--plata);font-size:clamp(16px,1.9vw,19px);
}

/* Aparición progresiva */
.reveal{opacity:0;transform:translateY(16px);animation:up .75s var(--ease) forwards}
.d1{animation-delay:.08s}.d2{animation-delay:.16s}.d3{animation-delay:.24s}.d4{animation-delay:.34s}
@keyframes up{to{opacity:1;transform:none}}

.in-view{animation:up .7s var(--ease) forwards}

/* ------------------------------------------------------- 4. COMPONENTES -- */

/* --- Botones --- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;
  background:var(--violeta);color:#fff;
  border:0;border-radius:var(--r);
  font:600 14px/1 var(--texto);text-decoration:none;cursor:pointer;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn:hover{background:var(--violeta-hover);transform:translateY(-1px);box-shadow:0 12px 32px rgba(111,60,255,.28)}
.btn--ghost{
  background:transparent;color:#fff;
  border:1px solid var(--linea-fuerte);
}
.btn--ghost:hover{background:rgba(208,213,221,.06);border-color:var(--plata);box-shadow:none}
.btn--sm{min-height:40px;padding:0 16px;font-size:13px}
.btn--lg{min-height:56px;padding:0 30px;font-size:15px}

.link{
  display:inline-flex;align-items:center;gap:7px;
  margin-top:auto;padding-top:18px;
  color:var(--violeta-claro);font:600 13px/1 var(--texto);text-decoration:none;
}
.link::after{
  content:"";width:6px;height:6px;
  border-right:1.75px solid currentColor;border-bottom:1.75px solid currentColor;
  transform:rotate(-45deg);transition:transform .2s var(--ease);
}
.link:hover{text-decoration:underline;text-underline-offset:4px}
.link:hover::after{transform:rotate(-45deg) translate(3px,3px)}

.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* --- Íconos de línea (trazo 1.75, sin relleno) --- */
.ico{
  width:26px;height:26px;margin-bottom:16px;
  fill:none;stroke:var(--violeta-claro);stroke-width:1.75;
  stroke-linecap:round;stroke-linejoin:round;
}

/* --- Navbar --- */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(10,10,10,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s,background .3s;
}
.nav.is-stuck{border-bottom-color:var(--linea);background:rgba(10,10,10,.94)}
.nav__in{display:flex;align-items:center;gap:16px;min-height:64px}
.nav__brand{margin-right:auto;display:flex;align-items:center}
.nav__brand img{width:150px;height:auto}
.nav__links{display:none;gap:26px}
.nav__links a{
  color:var(--txt-2-osc);font:500 13.5px/1 var(--texto);text-decoration:none;
  transition:color .2s;
}
.nav__links a:hover{color:#fff}
.nav .btn--sm{display:none}

.nav__toggle{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;padding:0 10px;
  background:transparent;border:1px solid var(--linea);border-radius:var(--r-sm);cursor:pointer;
}
.nav__toggle span{display:block;height:1.5px;background:var(--plata);transition:transform .25s var(--ease),opacity .2s}
.nav__toggle[aria-expanded="true"] span:first-child{transform:translateY(3.25px) rotate(45deg)}
.nav__toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.25px) rotate(-45deg)}

.nav__mobile{border-top:1px solid var(--linea);padding:10px var(--gutter) 18px;display:grid;gap:2px}
.nav__mobile a{
  padding:12px 4px;color:var(--plata);text-decoration:none;
  font:500 15px/1 var(--texto);border-bottom:1px solid var(--linea);
}
.nav__mobile a:last-child{border-bottom:0}

/* --- Tarjetas --- */
.card{
  display:flex;flex-direction:column;
  padding:26px 22px;
  background:var(--grafito);
  border:1px solid var(--linea);border-radius:var(--r);
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.card:hover{border-color:rgba(111,60,255,.45);transform:translateY(-3px)}
.card__problem{margin-top:12px;color:var(--plata);font-size:15px;font-style:italic}
.card__list{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:9px}
.card__list li{
  position:relative;padding-left:18px;
  color:var(--txt-2-osc);font-size:14px;line-height:1.5;
}
.card__list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;background:var(--violeta);
}
.card__result{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--linea);
  color:#fff;font-size:14.5px;font-weight:500;
}
.card--soft{background:transparent;border-style:dashed}

.grid{display:grid;gap:14px;margin-top:40px}

/* --- Flujo del hero --- */
.flow{position:relative;margin-top:56px;padding:26px 18px;border:1px solid var(--linea);border-radius:var(--r);background:linear-gradient(180deg,rgba(111,60,255,.05),transparent 70%)}
.flow__track{
  position:relative;display:grid;gap:14px;
  margin:0;padding:0;list-style:none;counter-reset:f;
}
.flow__node{
  position:relative;padding:14px 16px;
  background:rgba(22,22,28,.7);border:1px solid var(--linea);border-radius:var(--r-sm);
  text-align:left;
}
.flow__node:not(:last-child)::after{
  content:"";position:absolute;z-index:2;
  left:50%;bottom:-8px;transform:translateX(-50%) rotate(45deg);
  width:9px;height:9px;
  border-right:1.75px solid var(--violeta-claro);border-bottom:1.75px solid var(--violeta-claro);
  background:var(--bg);
}
.flow__tag{
  display:block;margin-bottom:6px;
  font:600 9.5px/1 var(--texto);letter-spacing:.2em;text-transform:uppercase;
  color:var(--violeta-claro);
}
.flow__txt{display:block;color:var(--plata);font-size:13.5px;line-height:1.45}
.flow__pulse{display:none}

/* Barrido secuencial: el recorrido se ve, sin adornos sueltos */
@keyframes sweep{
  0%,100%{border-color:var(--linea);background:rgba(22,22,28,.7)}
  8%,18%{border-color:rgba(111,60,255,.75);background:rgba(111,60,255,.13)}
}
.flow__node{animation:sweep 6s var(--ease) infinite}
.flow__node:nth-child(1){animation-delay:0s}
.flow__node:nth-child(2){animation-delay:.42s}
.flow__node:nth-child(3){animation-delay:.84s}
.flow__node:nth-child(4){animation-delay:1.26s}
.flow__node:nth-child(5){animation-delay:1.68s}

/* --- Señales del problema --- */
.signals{margin:34px 0 0;padding:0;list-style:none;display:grid;gap:1px;background:var(--linea);border:1px solid var(--linea);border-radius:var(--r);overflow:hidden}
.signals li{
  position:relative;background:var(--bg);padding:16px 18px 16px 44px;
  color:var(--plata);font-size:15px;
}
.signals li::before{
  content:"";position:absolute;left:18px;top:22px;
  width:10px;height:10px;border:1.75px solid var(--violeta);border-radius:50%;
}

/* --- Comparación antes / después --- */
.compare{margin-top:44px;border:1px solid var(--linea);border-radius:var(--r);overflow:hidden}
.compare__head{display:grid;grid-template-columns:1fr 1fr;background:var(--grafito)}
.compare__tab{
  padding:15px 10px;background:transparent;border:0;border-bottom:2px solid transparent;
  color:var(--txt-2-osc);font:600 13px/1.3 var(--texto);cursor:pointer;transition:color .2s,border-color .2s;
}
.compare__tab.is-on{color:#fff;border-bottom-color:var(--violeta)}
.compare__pane{padding:26px 20px}
.chips{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:0;padding:0;list-style:none}
.chips li{
  display:inline-flex;align-items:center;
  padding:9px 13px;border:1px solid var(--linea-fuerte);border-radius:var(--r-sm);
  background:var(--grafito);color:var(--plata);
  font:500 13px/1 var(--texto);white-space:nowrap;
  opacity:0;animation:up .45s var(--ease) forwards;
}
.chips li::after{
  content:"";margin-left:12px;width:7px;height:7px;
  border-right:1.75px solid var(--violeta-claro);border-bottom:1.75px solid var(--violeta-claro);
  transform:rotate(-45deg);
}
.chips li:last-child::after{content:none}
.chips--slow li:nth-child(1){animation-delay:.05s}
.chips--slow li:nth-child(2){animation-delay:.35s}
.chips--slow li:nth-child(3){animation-delay:.65s}
.chips--slow li:nth-child(4){animation-delay:.95s}
.chips--slow li:nth-child(5){animation-delay:1.25s}
.chips--slow li:nth-child(6){animation-delay:1.55s}
.chips--fast li{border-color:rgba(111,60,255,.4)}
.chips--fast li:nth-child(1){animation-delay:.04s}
.chips--fast li:nth-child(2){animation-delay:.12s}
.chips--fast li:nth-child(3){animation-delay:.2s}
.chips--fast li:nth-child(4){animation-delay:.28s}
.chips--fast li:nth-child(5){animation-delay:.36s}
.compare__note{margin-top:18px;color:var(--txt-2-osc);font-size:14px}

/* --- Demo: conversación real + sistema --- */
.demo{margin-top:38px;border:1px solid var(--linea);border-radius:var(--r);background:var(--bg-alt);overflow:hidden}
.demo__pick{display:flex;flex-wrap:wrap;gap:8px;padding:16px;border-bottom:1px solid var(--linea)}
.pick{
  padding:10px 15px;background:transparent;border:1px solid var(--linea-fuerte);border-radius:var(--r-sm);
  color:var(--txt-2-osc);font:500 13px/1 var(--texto);cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.pick:hover{color:#fff;border-color:var(--plata)}
.pick.is-on{background:var(--violeta);border-color:var(--violeta);color:#fff;font-weight:600}

.demo__body{display:grid}
.demo__col{padding:20px 16px;border-bottom:1px solid var(--linea)}
.demo__label{
  display:flex;align-items:center;gap:9px;margin-bottom:14px;
  font:600 10px/1 var(--texto);letter-spacing:.2em;text-transform:uppercase;color:var(--txt-2-osc);
}
.dot{width:7px;height:7px;border-radius:50%;background:#25D366;box-shadow:0 0 10px rgba(37,211,102,.55)}
.dot--v{background:var(--violeta);box-shadow:0 0 10px rgba(111,60,255,.6)}

/* Hilo de WhatsApp, en su modo oscuro real */
.wa{border:1px solid rgba(255,255,255,.09);border-radius:var(--r);overflow:hidden;background:#0B141A}
.wa__bar{display:flex;align-items:center;gap:11px;padding:11px 13px;background:#202C33}
.wa__avatar{
  flex:0 0 auto;display:grid;place-items:center;
  width:34px;height:34px;border-radius:50%;background:#0A0A0A;overflow:hidden;
}
.wa__avatar img{width:22px;height:auto}
.wa__id{display:grid;gap:2px;margin-right:auto;line-height:1.1}
.wa__id b{color:#E9EDEF;font:600 13.5px/1.2 var(--texto)}
.wa__id i{color:#8696A0;font:400 11px/1 var(--texto);font-style:normal}
.wa__glifo{width:21px;height:21px;fill:none;stroke:#25D366;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.wa__thread{
  display:grid;gap:9px;align-content:start;
  min-height:250px;padding:16px 13px;
  background:
    radial-gradient(circle at 18% 22%,rgba(255,255,255,.022) 0 2px,transparent 2px),
    radial-gradient(circle at 72% 62%,rgba(255,255,255,.022) 0 2px,transparent 2px),
    #0B141A;
  background-size:74px 74px,96px 96px,auto;
}

.bub{
  position:relative;max-width:86%;
  padding:7px 10px 5px;border-radius:9px;
  font-size:13.5px;line-height:1.45;
  opacity:0;animation:up .4s var(--ease) forwards;
  box-shadow:0 1px 2px rgba(0,0,0,.35);
}
.bub--in{background:#202C33;color:#E9EDEF;justify-self:start;border-top-left-radius:2px}
.bub--out{background:#005C4B;color:#E9EDEF;justify-self:end;border-top-right-radius:2px}
.bub__who{
  display:block;margin-bottom:2px;
  font:600 10px/1.2 var(--texto);letter-spacing:.12em;text-transform:uppercase;
}
.bub--in .bub__who{color:#53BDEB}
.bub--out .bub__who{color:#8FD3C4}
.bub__txt{display:block}
.bub__pie{
  display:flex;align-items:center;justify-content:flex-end;gap:4px;
  margin-top:2px;color:rgba(233,237,239,.65);font-size:10.5px;
}
.bub__tick{width:15px;height:10px;fill:none;stroke:#53BDEB;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* Columna del sistema */
.sys{position:relative;display:grid;gap:10px;align-content:start;min-height:250px;padding-left:4px}
.sys::before{
  content:"";position:absolute;left:21px;top:14px;bottom:14px;width:1px;
  background:linear-gradient(180deg,transparent,rgba(111,60,255,.55),transparent);
}
.sysrow{
  position:relative;display:flex;align-items:flex-start;gap:12px;
  padding:11px 13px 11px 0;
  opacity:0;animation:up .4s var(--ease) forwards;
}
.sysrow__ico{
  flex:0 0 auto;z-index:1;display:grid;place-items:center;
  width:34px;height:34px;border-radius:9px;
  background:var(--grafito);border:1px solid rgba(111,60,255,.4);
}
.sysrow__ico svg{
  width:17px;height:17px;fill:none;stroke:var(--violeta-claro);
  stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;
}
.sysrow__txt{display:grid;gap:3px;padding-top:2px}
.sysrow__k{font:600 9.5px/1.2 var(--texto);letter-spacing:.16em;text-transform:uppercase;color:var(--txt-2-osc)}
.sysrow__v{color:#fff;font-size:13.5px;line-height:1.4}

.demo__foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px}
.badge{
  display:inline-flex;align-items:center;
  padding:6px 12px;border:1px solid var(--linea-fuerte);border-radius:var(--r-sm);
  color:var(--txt-2-osc);font:600 10.5px/1 var(--texto);letter-spacing:.14em;text-transform:uppercase;
}
.demo__after{margin-top:26px;color:var(--plata);font-size:15px;max-width:66ch}

.cta-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:40px;padding:24px;
  border:1px solid var(--linea);border-radius:var(--r);
  background:linear-gradient(120deg,rgba(111,60,255,.1),transparent 65%);
}
.cta-strip p{font-family:var(--display);font-weight:600;font-size:clamp(17px,2.4vw,22px);letter-spacing:-.02em}

/* --- Pasos del método (sección clara) --- */
.steps{margin:40px 0 0;padding:0;list-style:none;display:grid;gap:1px;background:rgba(10,10,10,.1);border:1px solid rgba(10,10,10,.1);border-radius:var(--r);overflow:hidden}
.steps li{background:var(--niebla);padding:24px 22px}
.steps__n{
  display:block;margin-bottom:10px;
  font-family:var(--display);font-weight:700;font-size:20px;color:var(--violeta);letter-spacing:-.02em;
}
.steps h3{margin-bottom:8px}
.steps p{color:var(--txt-2-cla);font-size:14.5px}

.diag{margin-top:44px;padding:28px 24px;background:#fff;border:1px solid rgba(10,10,10,.1);border-radius:var(--r)}
.diag h3{font-size:clamp(19px,2.6vw,25px);font-weight:700}
.diag p{margin-top:14px;color:var(--txt-2-cla);font-size:15px;max-width:60ch}
.diag__grid{display:grid;gap:10px;margin:22px 0 26px;padding:0;list-style:none}
.diag__grid li{
  position:relative;padding-left:20px;color:#0A0A0A;font-size:14.5px;font-weight:500;
}
.diag__grid li::before{
  content:"";position:absolute;left:0;top:8px;width:8px;height:8px;
  border-radius:2px;background:var(--violeta);
}

/* --- Comparativa "por qué no" --- */
.vs{display:grid;gap:14px;margin-top:40px}
.vs__col{padding:26px 22px;border:1px solid var(--linea);border-radius:var(--r);background:var(--grafito)}
.vs__sub{margin-top:6px;color:var(--txt-2-osc);font-size:12.5px;font-weight:500}
.vs__col p:last-child{margin-top:16px;color:var(--plata);font-size:14.5px}
.vs__col--hi{background:linear-gradient(160deg,rgba(111,60,255,.16),var(--grafito) 60%);border-color:rgba(111,60,255,.45)}
.honest{
  margin-top:32px;padding:22px 24px;
  border-left:3px solid var(--violeta);border-radius:0 var(--r) var(--r) 0;
  background:rgba(22,22,28,.6);
  color:var(--plata);font-size:clamp(15px,1.8vw,17px);
}
.honest em{color:#fff;font-style:italic}

/* --- Escalera --- */
.ladder{margin:40px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.ladder li{
  position:relative;padding:22px 22px 22px 66px;
  background:var(--grafito);border:1px solid var(--linea);border-radius:var(--r);
}
.ladder__n{
  position:absolute;left:22px;top:22px;
  font-family:var(--display);font-weight:700;font-size:15px;color:var(--violeta-claro);
}
.ladder p{margin-top:8px;color:var(--txt-2-osc);font-size:14.5px}

/* --- Imágenes ilustrativas --- */
.demo__intro{display:grid;gap:30px;align-items:center}
.demo__intro .sec__lead:first-child{margin-top:0}

.ilustra{margin:0;justify-self:center;max-width:340px}
.ilustra img{
  width:100%;height:auto;border-radius:var(--r);
  border:1px solid var(--linea);
}
.ilustra figcaption{
  margin-top:10px;text-align:center;
  color:var(--txt-2-osc);font-size:11.5px;letter-spacing:.04em;
}

/* Banda a todo el ancho */
.banda{position:relative;margin:0;overflow:hidden;border-block:1px solid var(--linea)}
.banda img{width:100%;height:auto;display:block}
.banda figcaption{
  position:absolute;inset:auto 0 0 0;
  padding:60px var(--gutter) 20px;
  background:linear-gradient(180deg,transparent,rgba(5,5,8,.92) 62%);
  display:grid;gap:5px;
}
.banda figcaption strong{
  max-width:var(--max);margin-inline:auto;width:100%;
  font-family:var(--display);font-weight:600;font-size:clamp(15px,2.2vw,22px);
  letter-spacing:-.02em;color:#fff;
}
.banda figcaption span{
  max-width:var(--max);margin-inline:auto;width:100%;
  color:var(--txt-2-osc);font-size:clamp(10.5px,1.2vw,13px);
}

/* --- Trabajos: caso destacado --- */
.caso{display:grid;gap:30px;margin-top:44px}
.work__kind{color:var(--violeta-claro);font:600 11px/1 var(--texto);letter-spacing:.14em;text-transform:uppercase}

.caso__shots{position:relative;padding-bottom:46px}
.caso__desktop{
  display:block;overflow:hidden;
  border:1px solid var(--linea-fuerte);border-radius:var(--r);
  box-shadow:0 26px 70px rgba(0,0,0,.55);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.caso__desktop:hover{transform:translateY(-4px);border-color:rgba(111,60,255,.5)}
.caso__desktop img{width:100%;height:auto}
.caso__mobile{
  position:absolute;left:10px;bottom:0;width:100px;height:auto;
  border:1px solid var(--linea-fuerte);border-radius:var(--r-sm);
  box-shadow:0 18px 44px rgba(0,0,0,.7);
  background:var(--negro);
}

.caso__txt{display:flex;flex-direction:column;align-items:flex-start}
.caso__txt h3{margin-top:8px;font-size:clamp(21px,2.8vw,27px);font-weight:700}
.caso__lead{margin-top:14px;color:var(--plata);font-size:15.5px}
.caso__list{margin:20px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.caso__list li{
  position:relative;padding-left:18px;
  color:var(--txt-2-osc);font-size:14.5px;line-height:1.5;
}
.caso__list b{color:#fff;font-weight:600}
.caso__list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;background:var(--violeta);
}
.caso__nota{
  margin-top:22px;padding-left:14px;border-left:2px solid var(--violeta);
  color:#fff;font-size:14.5px;font-weight:500;
}
.caso__acciones{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:4px}
.caso__acciones .link{margin-top:0;padding-top:18px}
.caso__ref{
  padding-top:18px;color:var(--txt-2-osc);font-size:12.5px;
}
.caso__ref::before{content:"·";margin-right:18px;color:var(--plata-osc)}

/* Enlace dentro de un párrafo */
.link--inline{display:inline-flex;margin-top:0;padding-top:0;margin-left:6px;vertical-align:baseline}

/* --- FAQ --- */
.faq{margin-top:40px;border-top:1px solid var(--linea)}
.faq details{border-bottom:1px solid var(--linea)}
.faq summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:19px 2px;cursor:pointer;list-style:none;
  font-family:var(--display);font-weight:600;font-size:16px;letter-spacing:-.015em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";flex:0 0 auto;width:11px;height:11px;margin-top:6px;
  border-right:1.75px solid var(--violeta-claro);border-bottom:1.75px solid var(--violeta-claro);
  transform:rotate(45deg);transition:transform .25s var(--ease);
}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq details p{padding:0 2px 22px;color:var(--txt-2-osc);font-size:15px;max-width:62ch}

/* --- WhatsApp flotante --- */
.wa-float{
  position:fixed;right:16px;bottom:16px;z-index:90;
  display:flex;align-items:center;justify-content:center;
  width:54px;height:54px;border-radius:50%;
  background:var(--violeta);box-shadow:0 10px 30px rgba(0,0,0,.45);
  transition:transform .2s var(--ease),background .2s;
}
.wa-float:hover{transform:scale(1.06);background:var(--violeta-hover)}
.wa-float svg{width:25px;height:25px;fill:none;stroke:#fff;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}

/* -------------------------------------------------------- 5. SECCIONES -- */
.hero{padding:clamp(44px,8vw,86px) 0 clamp(52px,8vw,92px);position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-20% 40% auto -20%;height:70vh;
  background:radial-gradient(ellipse at 30% 30%,rgba(111,60,255,.13),transparent 62%);
  pointer-events:none;
}
.hero__in{position:relative}
h1 em{color:var(--violeta-claro);font-style:normal}

.sec{padding:var(--sec-y) 0;border-top:1px solid var(--linea)}
.sec--alt{background:var(--bg-alt)}
.sec--light{background:var(--niebla);color:var(--negro);border-top:0}
.sec--light h2{color:var(--negro)}
.sec--light .kicker{color:var(--txt-2-cla)}
.sec--light .kicker b{color:var(--violeta)}
.sec--light .sec__lead{color:var(--txt-2-cla)}

.final{padding:var(--sec-y) 0;text-align:center;border-top:1px solid var(--linea);background:radial-gradient(ellipse at 50% 0%,rgba(111,60,255,.14),transparent 58%)}
.final__logo{margin:0 auto 34px;width:min(260px,62vw);height:auto}
.final h2{margin-bottom:18px}
.final p{color:var(--txt-2-osc);max-width:52ch;margin-inline:auto;font-size:16px}
.final .btn{margin-top:32px}
.final__pie{
  margin-top:30px;color:var(--txt-2-osc);
  font:500 11px/1 var(--texto);letter-spacing:.22em;text-transform:uppercase;
}

.foot{border-top:1px solid var(--linea);padding:34px 0 96px}
.foot__in{display:grid;gap:14px;justify-items:center;text-align:center}
.foot img{width:172px;height:auto;opacity:.9}
.foot__pillars{color:var(--txt-2-osc);font:600 10px/1 var(--texto);letter-spacing:.24em;text-transform:uppercase}
.foot__legal{color:#8E949F;font-size:12px;letter-spacing:.06em}

/* -------------------------------------------------------- 6. BREAKPOINTS */
@media (min-width:600px){
  :root{--gutter:28px}
  .grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .works{grid-template-columns:repeat(2,1fr)}
  .signals{grid-template-columns:1fr 1fr;gap:1px}
  .diag__grid{grid-template-columns:1fr 1fr}
  .foot__in{grid-template-columns:auto 1fr auto;justify-items:start;align-items:center;text-align:left}
  .foot__legal{justify-self:end}
}

@media (min-width:760px){
  .nav__in{min-height:72px}
  .nav__brand img{width:178px}
  .nav .btn--sm{display:inline-flex}
  .demo__body{grid-template-columns:1fr 1fr}
  .demo__intro{grid-template-columns:1.35fr .65fr;gap:40px;margin-top:8px}
  .ilustra{max-width:300px;justify-self:end}
  .demo__col{border-bottom:0;padding:24px 22px}
  .demo__col:first-child{border-right:1px solid var(--linea)}
  .vs{grid-template-columns:repeat(3,1fr)}
  .caso{grid-template-columns:1.25fr .85fr;gap:38px;align-items:center}
  .caso__mobile{width:118px;left:-14px}
  .ladder{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .wa-float{display:none}
  html{scroll-padding-top:92px}
}

@media (min-width:1000px){
  :root{--gutter:32px}
  .nav__links{display:flex}
  .nav__toggle{display:none}
  .nav__mobile{display:none!important}
  .grid{grid-template-columns:repeat(3,1fr)}
  .ladder{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(5,1fr)}
  .steps li{padding:26px 20px}
  .diag{padding:38px 36px}
  .diag__grid{grid-template-columns:repeat(4,1fr)}
  .signals{grid-template-columns:repeat(4,1fr)}
  .flow{padding:32px}
  .flow__track{grid-template-columns:repeat(5,1fr);gap:0}
  .flow__node{border-radius:0;border-left-width:0}
  .flow__node:first-child{border-left-width:1px;border-radius:var(--r-sm) 0 0 var(--r-sm)}
  .flow__node:last-child{border-radius:0 var(--r-sm) var(--r-sm) 0}
  .flow__node:not(:last-child)::after{
    left:auto;right:-6px;bottom:auto;top:50%;
    transform:translateY(-50%) rotate(-45deg);
    background:var(--bg-alt);
  }
  .card{padding:30px 26px}
  .caso{gap:52px}
  .caso__mobile{width:140px;left:-26px}
  .compare__pane{padding:34px 30px}
  .demo__intro{gap:56px}
  .ilustra{max-width:330px}
  .final__logo{width:330px}
}

/* ------------------------------------------------- 7. MOVIMIENTO REDUCIDO */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
  }
  .reveal,.chips li,.bub,.sysrow{opacity:1;transform:none}
}

/* ------------------------------------------------------------ 8. PRINT -- */
@media print{
  .nav,.wa-float,.demo__pick,.demo__foot{display:none}
  body{background:#fff;color:#000}
  .sec,.hero,.final{border:0;background:#fff}
}