/* ===== Hilo · Sistema visual ===== */
:root {
  --noche: #0D111C;
  --tinta: #1F2640;
  --lino: #F2ECE2;
  --arena: #D2A770;
  --senal: #5B6CFF;

  --surface: #151A2A;
  --line: rgba(242, 236, 226, 0.08);
  --text-muted: rgba(242, 236, 226, 0.68);
  --senal-light: #8C98FF;
  --senal-deep: #3A47D6;

  --sans: "Geist", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, monospace;
  --serif: "Instrument Serif", Georgia, serif;

  --radius: 20px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--noche);
  color: var(--lino);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  padding-top: 68px; /* altura del menú fijo */
}
section[id] { scroll-margin-top: 68px; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--mono); }

/* Matiz: Instrument Serif solo en cursiva y para una o dos palabras */
em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--senal-light);
}

.dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--senal);
}

.grid-bg {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
}

/* ===== Botones ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 22px;
  border-radius: 999px;
  font-weight: 500; font-size: 15px;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--sm { height: 40px; padding: 0 18px; font-size: 14px; }
.btn--primary { background: var(--senal); color: #fff; }
.btn--primary:hover { background: #6B7BFF; }
.btn--glow { box-shadow: 0 10px 40px -8px rgba(91, 108, 255, .7); }
.btn--ghost { border: 1px solid var(--line); background: rgba(13, 17, 28, .4); }
.btn--ghost:hover { border-color: rgba(242, 236, 226, .2); }
.btn--dark { background: var(--noche); color: #fff; position: relative; z-index: 1; }

/* ===== Logo ===== */
.logo { display: inline-flex; align-items: center; gap: 8px; }
.logo__mark { width: 34px; height: 17px; color: var(--senal); }
.logo__word { font-size: 22px; font-weight: 500; letter-spacing: -0.04em; }

/* ===== Portada ===== */
.cover {
  position: relative; overflow: hidden;
  min-height: calc(100vh - 68px); min-height: calc(100svh - 68px);
  display: flex; flex-direction: column;
  padding: 40px 0;
}
.cover__glow {
  position: absolute; left: 50%; top: 50%;
  width: min(1100px, 140vw); height: 640px;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center, rgba(60, 75, 210, .5), rgba(13, 17, 28, 0) 62%);
  pointer-events: none;
}
.cover__center {
  position: relative; flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 48px 16px; text-align: center;
}
.cover__logo {
  display: flex; align-items: flex-end; gap: clamp(12px, 3vw, 40px);
  font-size: clamp(96px, 16vw, 190px);
  font-weight: 600; line-height: .8;
  letter-spacing: -0.06em;
}
.cover__mark { width: clamp(96px, 15vw, 196px); height: clamp(48px, 7.5vw, 98px); color: var(--senal); margin-bottom: .02em; }
.cover__claim {
  margin-top: clamp(28px, 5vw, 56px);
  font-size: clamp(24px, 3.4vw, 40px);
  letter-spacing: -0.03em;
  color: rgba(242, 236, 226, .9);
}
.cover__lead { margin-top: 24px; max-width: 540px; font-size: 18px; color: var(--text-muted); }
.cover__ctas { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* ===== Nav ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(13, 17, 28, .75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.nav__links { display: flex; gap: 28px; margin-left: auto; font-size: 14px; color: var(--text-muted); }
.nav__links a:hover { color: var(--lino); }

/* ===== Hero ===== */
.hero { position: relative; overflow: hidden; padding: 72px 0 112px; text-align: center; }
.hero__glow {
  position: absolute; left: 50%; top: 40px;
  width: 900px; height: 560px; transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(70, 85, 220, .45), rgba(13, 17, 28, 0) 65%);
  pointer-events: none;
}
.hero__inner { position: relative; display: flex; flex-direction: column; align-items: center; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(91, 108, 255, .55);
  border-radius: 999px;
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--senal-light);
  background: rgba(13, 17, 28, .5);
}

/* ===== Chat (Telegram) ===== */
.chat {
  width: 100%; max-width: 640px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .6);
}
.chat__head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.chat__head strong { display: block; font-size: 15px; font-weight: 600; }
.chat__status { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--text-muted); }
.avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--lino); color: var(--noche);
  display: grid; place-items: center;
}
.avatar svg { width: 24px; height: 12px; }
.chat__body { display: flex; flex-direction: column; gap: 12px; padding: 20px 18px; }

.bubble { max-width: 82%; padding: 10px 14px; border-radius: 16px; font-size: 14px; line-height: 1.45; }
.bubble--in { align-self: flex-start; background: var(--lino); color: var(--noche); border-bottom-left-radius: 6px; }
.bubble--out { align-self: flex-end; background: var(--senal); color: #fff; border-bottom-right-radius: 6px; }
.bubble--voice { display: flex; align-items: center; gap: 12px; padding: 12px 16px; font-size: 12px; }

.play { width: 0; height: 0; border-left: 8px solid #fff; border-top: 5px solid transparent; border-bottom: 5px solid transparent; }
.wave { display: flex; align-items: center; gap: 3px; height: 22px; }
.wave i { display: block; width: 2.5px; border-radius: 2px; background: rgba(255, 255, 255, .55); animation: wave 1.4s ease-in-out infinite; }
.wave i:nth-child(-n+6) { background: #fff; }
.wave i:nth-child(1)  { height: 6px;  animation-delay: 0s; }
.wave i:nth-child(2)  { height: 12px; animation-delay: .1s; }
.wave i:nth-child(3)  { height: 20px; animation-delay: .2s; }
.wave i:nth-child(4)  { height: 10px; animation-delay: .3s; }
.wave i:nth-child(5)  { height: 16px; animation-delay: .4s; }
.wave i:nth-child(6)  { height: 7px;  animation-delay: .5s; }
.wave i:nth-child(7)  { height: 18px; animation-delay: .6s; }
.wave i:nth-child(8)  { height: 11px; animation-delay: .7s; }
.wave i:nth-child(9)  { height: 6px;  animation-delay: .8s; }
.wave i:nth-child(10) { height: 14px; animation-delay: .9s; }
.wave i:nth-child(11) { height: 9px;  animation-delay: 1s; }
.wave i:nth-child(12) { height: 17px; animation-delay: 1.1s; }
.wave i:nth-child(13) { height: 8px;  animation-delay: 1.2s; }
.wave i:nth-child(14) { height: 12px; animation-delay: 1.3s; }
.wave i:nth-child(15) { height: 6px;  animation-delay: 1.1s; }
.wave i:nth-child(16) { height: 4px;  animation-delay: .9s; }
@keyframes wave { 0%, 100% { transform: scaleY(1); } 50% { transform: scaleY(.55); } }
@media (prefers-reduced-motion: reduce) { .wave i { animation: none; } html { scroll-behavior: auto; } }

/* ===== Separador: el hilo ===== */
.thread-divider {
  display: flex; align-items: flex-end;
  width: 100%;
  padding-right: 24px;
  color: var(--senal);
}
.thread-divider__line { flex: 1; height: 2px; margin-bottom: 3px; background: currentColor; border-radius: 2px; }
.thread-divider__line--long { flex: 2.4; }
.thread-divider__loop { flex: none; width: 160px; height: 40px; }
.thread-divider__dot { flex: none; width: 10px; height: 10px; margin: 0 0 -1px 4px; border-radius: 50%; background: var(--arena); }

/* ===== Secciones ===== */
.section { padding: 104px 0; }
.eyebrow { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--senal-light); }
.eyebrow--muted { color: var(--text-muted); }
.h2 {
  margin-top: 12px;
  font-size: clamp(34px, 4.6vw, 48px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.04em;
}
.h2--narrow { max-width: 560px; margin-top: 0; }

.steps { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px 32px;
}
.step__num { font-size: 12px; color: var(--senal-light); }
.card h3 { margin-top: 16px; font-size: 20px; font-weight: 500; letter-spacing: -0.02em; }
.card p { margin-top: 12px; font-size: 14px; color: var(--text-muted); }

/* Funciones · fondo Lino */
.section--light { background: var(--lino); color: var(--noche); }
.section--light em { color: var(--senal-deep); }
.section--light .eyebrow { color: var(--senal-deep); }
.features { margin-top: 56px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature { border-top: 1.5px solid var(--senal); padding-top: 20px; }
.feature h3 { margin-top: 10px; font-size: 18px; font-weight: 500; letter-spacing: -0.02em; }
.feature p:last-child { margin-top: 10px; font-size: 14px; color: rgba(13, 17, 28, .7); }

/* CTA */
.cta-wrap { padding: 0 24px 72px; }
.cta {
  position: relative; overflow: hidden;
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  background: var(--senal); color: #fff;
  border-radius: 24px;
  padding: 48px 56px;
}
.cta__title { font-size: clamp(32px, 4vw, 44px); font-weight: 500; letter-spacing: -0.04em; line-height: 1.1; }
.cta em { color: #fff; }
.cta p { margin-top: 6px; font-size: 15px; color: rgba(255, 255, 255, .85); }
.cta .cta__eyebrow { margin: 0 0 10px; font-size: 11px; color: rgba(255, 255, 255, .75); }
.cta__actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 12px; }
.btn--light { background: var(--lino); color: var(--noche); }
.cta__thread {
  position: absolute; right: 60px; bottom: -4px;
  width: 200px; height: 100px;
  color: rgba(255, 255, 255, .3);
  pointer-events: none;
}

/* Footer */
.footer {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding-top: 8px; padding-bottom: 48px;
  font-size: 12px; color: var(--text-muted);
}

/* ===== Animaciones ===== */
/* Mensajes del chat: llegan desde abajo, como en Telegram */
[data-chat-animate] .chat__body { justify-content: flex-end; }
.is-pending { display: none !important; }
.is-arriving { animation: arrive .45s cubic-bezier(.2, .8, .2, 1) both; }
.bubble--out.is-arriving { transform-origin: bottom right; }
.bubble--in.is-arriving { transform-origin: bottom left; }
@keyframes arrive {
  from { opacity: 0; transform: translateY(10px) scale(.94); }
  to   { opacity: 1; transform: none; }
}
.typing { display: flex; gap: 4px; padding: 14px 16px; animation: arrive .3s ease both; }
.typing span {
  width: 6px; height: 6px; border-radius: 50%;
  background: rgba(13, 17, 28, .45);
  animation: typing 1s ease-in-out infinite;
}
.typing span:nth-child(2) { animation-delay: .15s; }
.typing span:nth-child(3) { animation-delay: .3s; }
@keyframes typing {
  0%, 60%, 100% { transform: translateY(0); opacity: .5; }
  30% { transform: translateY(-4px); opacity: 1; }
}

@media (prefers-reduced-motion: no-preference) {
  /* El logo de la portada se dibuja al cargar */
  .js .cover__mark {
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    animation: draw 1.6s cubic-bezier(.65, 0, .35, 1) .2s forwards;
  }
  @keyframes draw { to { stroke-dashoffset: 0; } }

  /* Separador: el hilo se tira de izquierda a derecha */
  .js .thread-divider__line { transform: scaleX(0); transform-origin: left; }
  .js .thread-divider__line:first-child { transition: transform .6s cubic-bezier(.4, 0, .6, 1); }
  .js .thread-divider__line--long { transition: transform 1.1s cubic-bezier(.2, .6, .3, 1) 1.3s; }
  .js .thread-divider__loop path {
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    transition: stroke-dashoffset .75s linear .55s;
  }
  .js .thread-divider__dot { transform: scale(0); transition: transform .5s cubic-bezier(.3, 1.6, .5, 1) 2.3s; }
  .js .thread-divider.is-drawn .thread-divider__line,
  .js .thread-divider.is-drawn .thread-divider__dot { transform: none; }
  .js .thread-divider.is-drawn .thread-divider__loop path { stroke-dashoffset: 0; }
}

/* ===== Escena 3D (se mueve con el scroll) ===== */
html:not(.js) .cinema { display: none; }
.cinema { position: relative; height: 420vh; overflow: clip; }
.cinema__sticky {
  position: sticky; top: 68px;
  height: calc(100vh - 68px); height: calc(100svh - 68px);
  overflow: visible;
}
.cinema__glow {
  position: absolute; left: 62%; top: 50%;
  width: 900px; height: 700px; transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center, rgba(70, 85, 220, .42), rgba(13, 17, 28, 0) 62%);
  pointer-events: none;
}
.cinema__layout {
  position: relative; height: 100%;
  display: grid; grid-template-columns: 340px 1fr; gap: 24px; align-items: center;
}
.cinema__copy { position: relative; z-index: 2; }
.cinema__steps { list-style: none; margin: 36px 0 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.cinema__steps li {
  display: flex; gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line); border-radius: 16px;
  background: rgba(21, 26, 42, .7);
  color: var(--text-muted);
  transition: background .35s ease, color .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.cinema__steps li > span { font-size: 12px; color: var(--senal-light); padding-top: 2px; transition: color .35s ease; }
.cinema__steps strong { display: block; font-size: 17px; font-weight: 500; color: var(--lino); letter-spacing: -0.02em; }
.cinema__steps p { margin-top: 2px; font-size: 14px; }
.cinema__steps li.is-active {
  background: var(--senal); border-color: var(--senal); color: rgba(255, 255, 255, .85);
  box-shadow: 0 16px 50px -12px rgba(91, 108, 255, .7);
}
.cinema__steps li.is-active > span { color: #fff; }

.cinema__stage { position: relative; height: 100%; perspective: 1300px; }
.cinema__world {
  position: absolute; left: 50%; top: 50%;
  width: 1000px; height: 700px; margin: -350px 0 0 -500px;
  transform-style: preserve-3d;
  transition: transform .25s ease-out;
}
.cinema__threads { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.cinema__threads path {
  fill: none; stroke: var(--senal); stroke-width: 2; stroke-linecap: round;
  stroke-dasharray: 1; stroke-dashoffset: 1;
}

.c3d {
  position: absolute; left: 50%; top: 50%;
  transform-style: preserve-3d;
  will-change: transform, opacity;
  visibility: hidden;
}
.c3d.bubble {
  max-width: none; width: max-content;
  box-shadow: 0 30px 60px -18px rgba(0, 0, 0, .7);
}
.c3d.bubble--voice { box-shadow: 0 30px 60px -18px rgba(0, 0, 0, .7), 0 0 40px rgba(91, 108, 255, .45); }
.c3d[data-k="msg"] { max-width: 240px; width: auto; }
.c3d[data-k="answer"] { width: 320px; font-size: 15px; padding: 14px 16px; }
.c3d[data-k="question"] { font-size: 15px; }

/* Móvil 3D */
.phone {
  width: 250px; height: 520px;
  padding: 9px;
  border-radius: 42px;
  background: linear-gradient(145deg, #2A3150, #12162A 60%);
  box-shadow:
    0 0 0 1px rgba(242, 236, 226, .12),
    0 50px 100px -30px rgba(0, 0, 0, .8),
    0 0 90px rgba(91, 108, 255, .35);
}
.phone::before { /* grosor */
  content: ""; position: absolute; inset: 0;
  border-radius: inherit;
  background: #0A0D17;
  transform: translateZ(-14px);
}
.phone__screen {
  position: relative; height: 100%;
  border-radius: 33px; overflow: hidden;
  background: var(--surface);
}
.phone__screen::after { /* reflejo */
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, .09) 0%, rgba(255, 255, 255, 0) 38%);
  pointer-events: none;
}
.phone__head { display: flex; align-items: center; gap: 10px; padding: 26px 16px 14px; border-bottom: 1px solid var(--line); }
.phone__head .avatar { width: 34px; height: 34px; }
.phone__head .avatar svg { width: 20px; height: 10px; }
.phone__head strong { display: block; font-size: 14px; }
.phone__head .mono { display: flex; align-items: center; gap: 5px; font-size: 10px; color: var(--text-muted); }
.phone__input {
  position: absolute; left: 12px; right: 12px; bottom: 14px;
  display: flex; align-items: center; justify-content: space-between;
  height: 42px; padding: 0 6px 0 16px;
  border-radius: 999px; background: var(--tinta);
  font-size: 13px; color: var(--text-muted);
}
.phone__input i { width: 30px; height: 30px; border-radius: 50%; background: var(--senal); }

/* Archivos */
.file {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px 10px 10px;
  border-radius: 16px;
  background: var(--lino); color: var(--noche);
  white-space: nowrap;
  box-shadow: 0 30px 60px -18px rgba(0, 0, 0, .75);
}
.file__icon {
  display: grid; place-items: center;
  width: 40px; height: 40px; border-radius: 10px;
  font: 500 10px var(--mono); color: #fff;
  background: var(--senal);
}
.file__icon--arena { background: var(--arena); }
.file__icon--tinta { background: var(--tinta); font-size: 16px; }
.file__icon--lino { background: var(--noche); }
.file__name { display: block; font-size: 13px; }
.file__meta { display: block; font-size: 12px; color: rgba(13, 17, 28, .6); }

/* Fichas */
.mini-ficha {
  width: 236px; padding: 14px 16px;
  border-radius: 16px;
  background: linear-gradient(160deg, #262E5C, var(--tinta));
  border: 1px solid rgba(91, 108, 255, .55);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .7), 0 0 40px rgba(91, 108, 255, .25);
}
.mini-ficha__top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.mini-ficha strong { font-size: 15px; font-weight: 500; letter-spacing: -0.01em; }
.mini-ficha .tag { color: var(--senal-light); background: rgba(91, 108, 255, .18); }
.mini-ficha p { margin-top: 6px; font-size: 13px; color: var(--text-muted); }
.mini-ficha p.mono { font-size: 11px; color: var(--senal-light); }

/* Sin animación: escena estática en su estado final */
.cinema--static { height: auto; }
.cinema--static .cinema__sticky { position: relative; top: 0; height: 760px; }

@media (max-width: 900px) {
  .cinema { height: 360vh; }
  .cinema__layout { grid-template-columns: 1fr; grid-template-rows: auto 1fr; gap: 8px; padding-top: 24px; }
  .cinema__copy .h2 { font-size: 28px; }
  .cinema__steps { margin-top: 16px; }
  .cinema__steps li:not(.is-active) { display: none; }
  .cinema__glow { left: 50%; top: 60%; }
  .cinema--static .cinema__steps li { display: flex; }
}

/* ===== Utilidades de sección ===== */
.section--flush-top { padding-top: 0; }
.h2--wide { max-width: 760px; }
.lead { margin-top: 20px; max-width: 640px; font-size: 18px; color: var(--text-muted); }
.footnote { margin-top: 20px; font-size: 13px; color: var(--text-muted); }
.mt-20 { margin-top: 20px; }
.mt-48 { margin-top: 48px; }
.mt-64 { margin-top: 64px; }
.mt-96 { margin-top: 96px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.grid-3 .card h3, .grid-2 .card h3 { margin-top: 0; }

/* Variantes sobre fondo Lino */
.section--light .lead,
.section--light .footnote { color: rgba(13, 17, 28, .7); }
.section--light .card {
  background: #FBF8F3;
  border-color: rgba(13, 17, 28, .08);
}
.section--light .card p { color: rgba(13, 17, 28, .68); }

/* Listas con punto */
.dots { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.dots li { position: relative; padding-left: 20px; font-size: 15px; }
.dots li::before {
  content: ""; position: absolute; left: 0; top: .6em;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--senal);
}
.dots--muted li { color: var(--text-muted); }
.dots--muted li::before { background: rgba(242, 236, 226, .3); }

/* Problema / solución */
.callout {
  margin-top: 28px;
  padding-left: 20px;
  border-left: 3px solid var(--senal);
  font-size: 18px; font-weight: 500; letter-spacing: -0.01em;
}
.compare { display: flex; flex-direction: column; gap: 16px; }
.compare__col {
  padding: 24px;
  border: 1px dashed rgba(242, 236, 226, .14);
  border-radius: var(--radius);
}
.compare__col--after {
  border: 1px solid rgba(91, 108, 255, .55);
  background: linear-gradient(160deg, rgba(91, 108, 255, .18), rgba(31, 38, 64, .4));
}

/* Ejemplos de Telegram */
.chat--mini { max-width: none; box-shadow: none; }
.transcript {
  align-self: flex-end; max-width: 82%;
  margin-top: -4px;
  font-size: 13px; line-height: 1.45; text-align: right;
  color: var(--text-muted);
}

/* Formatos */
.formats__row {
  display: grid; grid-template-columns: 260px 1fr; gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.formats__row h3 { font-size: 16px; font-weight: 500; letter-spacing: -0.01em; }
.formats__row p { font-size: 15px; color: var(--text-muted); }
.formats__row--head {
  padding: 0 0 12px;
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-muted);
}

/* Puntos con título */
.point + .point { margin-top: 20px; }
.point h3 { font-size: 18px; font-weight: 500; letter-spacing: -0.02em; }
.point p { margin-top: 8px; font-size: 15px; }
.section--light .point p { color: rgba(13, 17, 28, .7); }

/* Ficha de ejemplo */
.ficha {
  background: #FFFDF9;
  border: 1px solid rgba(13, 17, 28, .08);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 24px 60px -30px rgba(13, 17, 28, .35);
}
.ficha__title { display: flex; align-items: center; gap: 12px; margin-top: 12px; }
.ficha__title h3 { font-size: 24px; font-weight: 500; letter-spacing: -0.03em; }
.tag {
  padding: 3px 10px; border-radius: 999px;
  font-size: 11px; color: var(--senal-deep);
  background: rgba(91, 108, 255, .12);
}
.ficha__meta { margin-top: 6px; font-size: 12px; color: rgba(13, 17, 28, .55); }
.ficha__label { margin-top: 22px; font-size: 13px; font-weight: 500; color: rgba(13, 17, 28, .6); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip {
  padding: 5px 12px; border-radius: 999px;
  font-size: 13px;
  background: var(--lino);
  border: 1px solid rgba(13, 17, 28, .08);
}
.history { list-style: none; margin: 8px 0 0; padding: 0; }
.history li {
  display: grid; grid-template-columns: 56px 1fr; gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(13, 17, 28, .08);
  font-size: 14px;
}
.history li:last-child { border-bottom: 0; padding-bottom: 0; }
.history span { color: var(--senal-deep); font-size: 13px; padding-top: 1px; }

/* Preguntas como burbujas */
.asks { list-style: none; margin: 16px 0; padding: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.asks li {
  padding: 8px 14px;
  border-radius: 14px; border-bottom-right-radius: 4px;
  background: var(--senal); color: #fff;
  font-size: 14px; line-height: 1.4;
}
.card--accent { border-color: rgba(91, 108, 255, .55); }

/* Privacidad y seguridad */
.secure {
  background: var(--noche); color: var(--lino);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 24px 60px -30px rgba(13, 17, 28, .5);
}
.section--light .secure .eyebrow { color: var(--senal-light); }
.secure .dots li { font-size: 14px; color: var(--text-muted); }
.secure .dots strong { color: var(--lino); font-weight: 500; }

/* Preguntas frecuentes */
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
.faq details { border-bottom: 1px solid rgba(13, 17, 28, .12); }
.faq summary {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 0;
  font-size: 17px; font-weight: 500; letter-spacing: -0.01em;
  cursor: pointer; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none;
  font-family: var(--mono); font-size: 18px; color: var(--senal-deep);
  transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 32px 20px 0; font-size: 15px; color: rgba(13, 17, 28, .7); }

.section--light + .cta-wrap { padding-top: 72px; }
.footer a { text-decoration: underline; text-underline-offset: 3px; }
.footer a:hover { color: var(--lino); }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .features { grid-template-columns: 1fr 1fr; gap: 40px 24px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .faq { grid-template-columns: 1fr; }
  .formats__row { grid-template-columns: 200px 1fr; }
}
@media (max-width: 680px) {
  .container { padding: 0 16px; }
  .nav__links { display: none; }
  .cover { padding: 24px 0; }
  .cover__lead { font-size: 16px; }
  .hero { padding: 56px 0 80px; }
  .section { padding: 80px 0; }
  .thread-divider { padding-right: 16px; }
  .thread-divider__loop { width: 120px; height: 30px; }
  .thread-divider__line { margin-bottom: 2px; }
  .features, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .cta__actions { flex-direction: column; width: 100%; }
  .lead { font-size: 16px; }
  .mt-96 { margin-top: 72px; }
  .formats__row { grid-template-columns: 1fr; gap: 6px; }
  .formats__row--head { display: none; }
  .ficha, .secure { padding: 24px 20px; }
  .cta-wrap { padding: 0 16px 56px; }
  .cta { padding: 36px 24px 56px; }
  .cta__thread { right: 16px; width: 140px; height: 70px; }
  .bubble { max-width: 90%; }
}