/* =========================================================================
   NUBI — website
   Paleta tomada directo del logo real (no inventada): noche + cian.
   Tipografía: Bricolage Grotesque (display), IBM Plex Sans (cuerpo),
   IBM Plex Mono (números/etiquetas — refuerza el eje "IA / velocidad").
   ========================================================================= */

:root {
  --night: #0A1330;
  --night-deep: #050914;
  --night-soft: #16224A;
  --cyan: #4FE3D6;
  --cyan-bright: #9BF6EC;
  --sky: #5FA8DE;
  --paper: #FFFFFF;
  --ink-soft: #A9BBDD;
  --line: rgba(159, 186, 230, 0.16);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--night);
  color: var(--paper);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: 'Bricolage Grotesque', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0;
  color: var(--paper);
}

p { margin: 0; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
ul { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; cursor: pointer; }

.mono { font-family: 'IBM Plex Mono', monospace; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 32px; }

/* ---------- estrellas de fondo (fijas, sutiles) ---------- */
.starfield { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: .6; }
.starfield svg { width: 100%; height: 100%; }
.star { animation: twinkle 4.5s ease-in-out infinite; }
@keyframes twinkle { 0%, 100% { opacity: .2; } 50% { opacity: .85; } }

/* Estrellas fugaces: cruzan la pantalla en diagonal, aparecen y se
   desvanecen en puntos distintos (lado y momento aleatorios por estrella). */
.shooting-stars { position: absolute; inset: 0; overflow: hidden; }
.shooting-star {
  position: absolute;
  top: var(--sy, 20%);
  left: -6%;
  width: 110px;
  height: 2px;
  background: linear-gradient(90deg, transparent, #fff 65%, var(--cyan-bright));
  border-radius: 999px;
  opacity: 0;
  filter: drop-shadow(0 0 4px rgba(255,255,255,.7));
  transform: rotate(var(--sr, 16deg));
  animation-name: shootAcross;
  animation-timing-function: ease-in;
  animation-iteration-count: infinite;
}
.shooting-star.reverse {
  left: auto;
  right: -6%;
  background: linear-gradient(270deg, transparent, #fff 65%, var(--cyan-bright));
  animation-name: shootAcrossReverse;
}
@keyframes shootAcross {
  0% { transform: translate(0, 0) rotate(var(--sr, 16deg)); opacity: 0; }
  4% { opacity: 1; }
  14% { opacity: 1; }
  26% { opacity: 0; }
  100% { transform: translate(128vw, var(--sdy, 34vh)) rotate(var(--sr, 16deg)); opacity: 0; }
}
@keyframes shootAcrossReverse {
  0% { transform: translate(0, 0) rotate(calc(var(--sr, 16deg) + 180deg)); opacity: 0; }
  4% { opacity: 1; }
  14% { opacity: 1; }
  26% { opacity: 0; }
  100% { transform: translate(-128vw, var(--sdy, 34vh)) rotate(calc(var(--sr, 16deg) + 180deg)); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .shooting-star { display: none; }
}

/* ---------- grano (textura) ---------- */
/* Ruido sutil sobre todo el sitio vía SVG feTurbulence — evita que el fondo
   oscuro se vea "plano" a pantalla completa. Puramente decorativo (z-index
   por encima de todo, pointer-events:none) y muy barato en rendimiento. */
.grain {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
  opacity: .05;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 180px 180px;
}

main, nav, footer { position: relative; z-index: 1; }

/* ---------- vidrio (glassmorphism) ---------- */
/* El logo real es un objeto de vidrio 3D con brillo — este es el mismo
   lenguaje aplicado a los componentes de UI: fondo translúcido + blur +
   borde con degradado cian→cielo en vez de una línea plana. */
.glass {
  background: linear-gradient(160deg, rgba(255,255,255,.055), rgba(255,255,255,.012));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.glass-border {
  position: relative;
  isolation: isolate;
}
.glass-border::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--cyan) 65%, transparent), color-mix(in srgb, var(--sky) 30%, transparent) 45%, transparent 75%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 1;
}

/* ---------- estado en vivo (punto verde-cian) ---------- */
.dot-live {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--cyan) 55%, transparent);
  animation: livePulse 2s ease-out infinite;
}
@keyframes livePulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--cyan) 55%, transparent); }
  70% { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ---------- nav ---------- */
nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--night) 78%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 32px;
  max-width: 1180px;
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-weight: 800;
  font-size: 19px;
  text-decoration: none;
  color: var(--paper);
}
.nav-links { display: flex; gap: 30px; font-size: 14.5px; color: var(--ink-soft); }
.nav-links a { text-decoration: none; transition: color .15s; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--paper); }
@media (max-width: 760px) { .nav-links { display: none; } }

/* ---------- botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: 12px;
  font-size: 15.5px;
  font-weight: 600;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s, border-color .2s, background .2s;
}
.btn-small { padding: 9px 16px; font-size: 13.5px; border-radius: 100px; }
.btn-primary {
  background: linear-gradient(100deg, var(--cyan) 0%, var(--sky) 100%);
  color: var(--night-deep);
  box-shadow: 0 16px 30px -14px color-mix(in srgb, var(--cyan) 65%, transparent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 20px 36px -12px color-mix(in srgb, var(--cyan) 72%, transparent); }
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--line);
  color: var(--paper);
}
.btn-outline:hover { border-color: color-mix(in srgb, var(--cyan) 50%, var(--line)); background: color-mix(in srgb, var(--cyan) 8%, transparent); }

/* ---------- hero ---------- */
.hero { padding: 72px 32px 96px; }
.hero-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
  background: color-mix(in srgb, var(--cyan) 12%, transparent);
  padding: 6px 13px;
  border-radius: 100px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(44px, 6.4vw, 92px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 26px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--cyan) 0%, var(--sky) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { font-size: 18px; line-height: 1.6; color: var(--ink-soft); max-width: 46ch; margin-bottom: 34px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }

.hero-stats { display: flex; align-items: center; gap: 22px; padding-top: 26px; border-top: 1px solid var(--line); }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-value { font-size: 22px; font-weight: 600; color: var(--paper); }
.stat-label { font-size: 12.5px; color: var(--ink-soft); max-width: 20ch; line-height: 1.3; }
.stat-divider { width: 1px; height: 34px; background: var(--line); }

/* ---------- panel de chat (hero) ---------- */
.hero-panel { position: relative; perspective: 1000px; }
.chatcard { transition: transform .3s ease-out; transform-style: preserve-3d; }
.panel-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--cyan) 28%, transparent), transparent 65%);
  filter: blur(10px);
  z-index: -1;
  animation: breathe 5s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { opacity: .7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}
.chatcard {
  background: color-mix(in srgb, var(--night-deep) 78%, transparent);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,.6), 0 1px 0 rgba(255,255,255,.06) inset;
  max-width: 420px;
  margin: 0 auto;
}
.chatcard-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  background: color-mix(in srgb, var(--night-soft) 55%, transparent);
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 2;
}
.chatcard-head img { border-radius: 50%; }
.chatcard-name { font-size: 15px; font-weight: 600; }
.chatcard-status { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--cyan); }
.chatcard-body {
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background:
    radial-gradient(circle at 15% 15%, rgba(79,227,214,.08) 0, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(95,168,222,.10) 0, transparent 50%);
  min-height: 320px;
  max-height: 420px;
  overflow-y: auto;
  position: relative;
  z-index: 2;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

/* ---------- input del chat (demo real) ---------- */
.chat-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--night-soft) 45%, transparent);
  position: relative;
  z-index: 2;
}
.chat-input {
  flex: 1;
  background: color-mix(in srgb, var(--paper) 6%, transparent);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 10px 16px;
  font: inherit;
  font-size: 13.5px;
  color: var(--paper);
}
.chat-input::placeholder { color: var(--ink-soft); }
.chat-input:disabled { opacity: .55; }
.chat-input:focus { outline: none; border-color: color-mix(in srgb, var(--cyan) 55%, var(--line)); }
.chat-send {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  flex-shrink: 0;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--cyan), var(--sky));
  color: var(--night-deep);
  transition: transform .15s;
}
.chat-send:hover { transform: scale(1.06); }
.chat-send svg { width: 17px; height: 17px; }
.chat-send:disabled { opacity: .5; cursor: default; transform: none; }
.bubble {
  max-width: 84%;
  padding: 11px 14px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.45;
  position: relative;
}
.bubble.in { background: #1C2B57; color: #EAF1FF; align-self: flex-start; border-bottom-left-radius: 4px; }
.bubble.out { background: color-mix(in srgb, var(--cyan) 18%, var(--night-soft)); color: #EAFFFC; align-self: flex-end; border-bottom-right-radius: 4px; }
.latency-tag {
  display: inline-block;
  margin-top: 9px;
  font-size: 11px;
  letter-spacing: .02em;
  color: var(--cyan);
  border: 1px solid color-mix(in srgb, var(--cyan) 40%, transparent);
  padding: 3px 9px;
  border-radius: 100px;
}

/* Doble check estilo WhatsApp: un solo trazo (enviado) -> dos trazos
   grises (entregado) -> dos trazos en color (leído). Controlado por
   [data-state] desde script.js. */
.ticks { display: inline-flex; position: relative; width: 20px; height: 11px; margin-left: 8px; vertical-align: middle; }
.tick { position: absolute; top: 0; width: 15px; height: 11px; fill: none; stroke: var(--ink-soft); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; transition: stroke .3s ease, opacity .2s ease; }
.tick-1 { left: 0; opacity: 0; }
.tick-2 { left: 5px; opacity: 1; }
.ticks[data-state="delivered"] .tick-1,
.ticks[data-state="read"] .tick-1 { opacity: 1; }
.ticks[data-state="read"] .tick-1,
.ticks[data-state="read"] .tick-2 { stroke: var(--cyan-bright); }

/* ---------- secuencia de mensajes tipo WhatsApp ---------- */
.msg {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .35s ease, transform .35s ease;
}
.msg.show { opacity: 1; transform: translateY(0); }

.option-row { display: flex; flex-wrap: wrap; gap: 8px; align-self: flex-end; max-width: 84%; justify-content: flex-end; }
.option {
  background: transparent;
  border: 1.5px solid var(--cyan);
  color: var(--cyan);
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 100px;
}

.bubble.typing { display: inline-flex; align-items: center; gap: 4px; padding: 12px 15px; align-self: flex-start; background: #1C2B57; border-bottom-left-radius: 4px; }
.bubble.typing span { width: 6px; height: 6px; border-radius: 50%; background: rgba(234,241,255,.55); animation: typingDot 1.1s ease-in-out infinite; }
.bubble.typing span:nth-child(2) { animation-delay: .15s; }
.bubble.typing span:nth-child(3) { animation-delay: .3s; }
@keyframes typingDot { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-3px); opacity: 1; } }

/* ---------- banner separador ---------- */
.banner-strip { padding: 0 32px; }
.banner-strip .wrap { padding: 0; max-width: 1180px; }
.banner-strip img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 30px 70px -30px rgba(0,0,0,.6), 0 0 0 1px var(--line);
}

/* ---------- secciones genéricas ---------- */
.section { padding: 92px 32px; }
.section-panel { background: var(--night-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.kicker {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}
.section-head { max-width: 620px; margin-bottom: 52px; }
.section-head h2 { font-size: clamp(28px, 3.2vw, 40px); }
.section-head p { margin-top: 15px; font-size: 16.5px; line-height: 1.6; color: var(--ink-soft); }

/* ---------- cómo funciona ---------- */
/* Grilla rota a propósito: el paso 1 es más ancho y protagónico, 2 y 3 caen
   en escalera (offset vertical creciente) en vez de 3 columnas idénticas
   alineadas — la simetría perfecta es lo que hace que una sección se sienta
   "de plantilla". */
.steps {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.95fr;
  gap: 28px;
  align-items: start;
}
.step {
  position: relative;
  padding: 30px 26px;
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(160deg, rgba(255,255,255,.05), rgba(255,255,255,.01));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform .25s ease, box-shadow .25s ease;
}
#como-funciona .step:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px -28px rgba(0,0,0,.5);
}
.step:hover .step-icon {
  transform: scale(1.08) translateY(-2px);
  background: color-mix(in srgb, var(--cyan) 22%, transparent);
  box-shadow: 0 0 24px -4px color-mix(in srgb, var(--cyan) 60%, transparent);
}
.step-lead { padding: 38px 32px; }
.step:nth-child(2) { margin-top: 52px; }
.step:nth-child(3) { margin-top: 100px; }
.step-num-ghost {
  position: absolute;
  top: -6px;
  right: 10px;
  font-size: 76px;
  font-weight: 600;
  color: var(--paper);
  opacity: .05;
  line-height: 1;
  pointer-events: none;
  z-index: 0;
}
.step-icon {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--cyan) 10%, transparent);
  color: var(--cyan);
  margin-bottom: 18px;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.step-lead .step-icon { width: 60px; height: 60px; }
.step-icon svg { width: 24px; height: 24px; }
.step h3 { position: relative; z-index: 1; font-size: 20px; margin-bottom: 10px; }
.step-lead h3 { font-size: 24px; }
.step p { position: relative; z-index: 1; font-size: 14.5px; line-height: 1.55; color: var(--ink-soft); }
@media (max-width: 820px) {
  .steps { grid-template-columns: 1fr; gap: 24px; }
  .step:nth-child(2), .step:nth-child(3) { margin-top: 0; }
}

/* ---------- roles ---------- */
.roles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.role-card {
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  padding: 32px;
  background: linear-gradient(160deg, rgba(255,255,255,.055), rgba(255,255,255,.012));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform .25s ease, box-shadow .25s ease;
}
#roles .role-card:hover { transform: translateY(-5px); box-shadow: 0 26px 54px -28px rgba(0,0,0,.55), 0 0 0 1px color-mix(in srgb, var(--cyan) 25%, transparent); }
.role-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--cyan) 14%, transparent);
  color: var(--cyan);
  margin-bottom: 20px;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.role-card:hover .role-icon {
  transform: scale(1.08) translateY(-2px);
  background: color-mix(in srgb, var(--cyan) 24%, transparent);
  box-shadow: 0 0 24px -4px color-mix(in srgb, var(--cyan) 65%, transparent);
}
.role-icon svg { width: 24px; height: 24px; }
.role-card h3 { font-size: 20px; margin-bottom: 14px; }
.role-card li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 9px;
}
.role-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--cyan);
}
.role-cta {
  display: block;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  transition: color .15s;
}
.role-cta:hover, .role-cta:focus-visible { color: var(--cyan-bright); }
@media (max-width: 820px) { .roles { grid-template-columns: 1fr; } }

/* ---------- por qué IA ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.why-num { font-size: 26px; color: var(--cyan); margin-bottom: 14px; display: block; }
.why-item h3 { font-size: 16.5px; margin-bottom: 8px; }
.why-item p { font-size: 14px; line-height: 1.55; color: var(--ink-soft); }
@media (max-width: 980px) { .why-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .why-grid { grid-template-columns: 1fr; } }

/* ---------- CTA final ---------- */
.final-cta { text-align: center; }
.final-cta .wrap { max-width: 620px; }
.final-cta h2 { font-size: clamp(30px, 3.8vw, 44px); margin: 6px 0 32px; }
.final-cta-mascot {
  width: 100px;
  height: 100px;
  margin: 0 auto 18px;
  border-radius: 50%;
  box-shadow: 0 0 40px -6px color-mix(in srgb, var(--cyan) 55%, transparent);
  animation: mascotFloat 3.6s ease-in-out infinite;
}
@keyframes mascotFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@media (prefers-reduced-motion: reduce) {
  .final-cta-mascot { animation: none; }
}

/* ---------- footer ---------- */
footer { padding: 36px 32px; border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; }
.footer-note { font-size: 13px; color: var(--ink-soft); }

/* ---------- scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* Stagger de tarjetas dentro de una sección revelada: cada hijo entra un
   poco después del anterior en vez de aparecer todos a la vez. */
.roles .role-card,
.why-grid .why-item,
.steps .step {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible .role-card,
.reveal.is-visible .why-item,
.reveal.is-visible .step {
  opacity: 1;
  transform: translateY(0);
}
.roles .role-card:nth-child(1), .why-grid .why-item:nth-child(1), .steps .step:nth-child(1) { transition-delay: .05s; }
.roles .role-card:nth-child(2), .why-grid .why-item:nth-child(2), .steps .step:nth-child(2) { transition-delay: .15s; }
.roles .role-card:nth-child(3), .why-grid .why-item:nth-child(3), .steps .step:nth-child(3) { transition-delay: .25s; }
.why-grid .why-item:nth-child(4) { transition-delay: .35s; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-panel { margin-top: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .star, .dot-live, .bubble.typing span, .steps-track .pulse { animation: none !important; opacity: 1; }
  .reveal,
  .roles .role-card,
  .why-grid .why-item,
  .steps .step { opacity: 1; transform: none; transition: none; }
}