/* =====================================================================
   CHUDBI · Landing
   Paleta tomada del isotipo: navy #18365E · azul #21658F · teal #1D979E
   menta #36B5AC · oro #E6C064
   ===================================================================== */

:root {
  --navy: #18365E;
  --blue: #21658F;
  --teal: #1D979E;
  --mint: #36B5AC;
  --mint-l: #5FD4C8;
  --gold: #E6C064;
  --gold-l: #F1D592;
  --grad-cool: linear-gradient(135deg, var(--blue), var(--teal) 55%, var(--mint));

  --f-display: 'Sora', 'Inter', system-ui, sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', monospace;

  --gutter: clamp(16px, 4vw, 40px);
  --max: 1280px;
  --radius: 20px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* Grafito (claro): tema por defecto */
:root, [data-theme="light"] {
  color-scheme: light;
  --bg: #F5F7FB;
  --bg-2: #EDF1F7;
  --bg-3: #E4EAF2;
  --surface: #FFFFFF;
  --surface-2: #EEF2F7;
  --line: rgba(24, 54, 94, .10);
  --line-2: rgba(24, 54, 94, .18);
  --text: #0E1E36;
  --text-2: #2C3E57;
  --strong: #0E1E36;
  --muted: #4E5F78;
  --faint: #74859D;
  --accent-text: #11777D;
  --gold-ink: #8F6A17;
  --gold-text: #7E5B10;
  --guard-text: #B4433B;
  --grad: linear-gradient(100deg, #158A90 0%, #1D979E 30%, #21658F 64%, #B0832A 100%);

  --nav-bg: rgba(255, 255, 255, .78);
  --menu-bg: rgba(255, 255, 255, .97);
  --hover: rgba(24, 54, 94, .06);
  --ghost-bg: rgba(255, 255, 255, .7);
  --ghost-hover: #FFFFFF;
  --card-grad: linear-gradient(180deg, #FFFFFF, #FAFBFD);
  --card-grad-2: linear-gradient(170deg, #FFFFFF, #F6F8FC 60%);
  --panel: linear-gradient(170deg, #FFFFFF, #F8FAFD);
  --chat-bg: linear-gradient(180deg, #FFFFFF, #F7F9FC);
  --form-bg: linear-gradient(170deg, rgba(255, 255, 255, .96), rgba(247, 249, 252, .96));
  --input-bg: #F5F7FB;
  --input-bg-focus: #FFFFFF;
  --bubble-bg: #F0F3F8;
  --chrome-bg: linear-gradient(180deg, #F4F7FA, #E9EEF4);
  --source-bg: rgba(33, 101, 143, .10);
  --source-text: #1B4E73;

  --shadow-xl: 0 50px 120px -40px rgba(24, 54, 94, .38);
  --shadow-lg: 0 40px 100px -40px rgba(24, 54, 94, .35);
  --shadow-md: 0 24px 60px -30px rgba(24, 54, 94, .3);
  --float-shadow: drop-shadow(0 18px 28px rgba(24, 54, 94, .22));
  --glow-teal: rgba(29, 151, 158, .16);
  --aurora-1: rgba(33, 101, 143, .30);
  --aurora-2: rgba(29, 151, 158, .30);
  --aurora-3: rgba(230, 192, 100, .38);
  --aurora-op: .75;
  --spot: rgba(29, 151, 158, .10);
  --loader-bg: radial-gradient(60% 60% at 50% 45%, #FFFFFF 0%, #EDF1F7 75%);
  --loader-text: #18365E;
  --grain-op: .025;
  --footer-word: linear-gradient(180deg, rgba(24, 54, 94, .13), rgba(24, 54, 94, 0) 85%);
}

/* Medianoche (oscuro) */
[data-theme="dark"] {
  color-scheme: dark;
  --bg: #050B16;
  --bg-2: #08111F;
  --bg-3: #0C182B;
  --surface: rgba(255, 255, 255, .035);
  --surface-2: rgba(255, 255, 255, .06);
  --line: rgba(150, 185, 225, .12);
  --line-2: rgba(150, 185, 225, .22);
  --text: #EAF1F8;
  --text-2: #C7D4E4;
  --strong: #FFFFFF;
  --muted: #93A7C0;
  --faint: #5F7593;
  --accent-text: #5FD4C8;
  --gold-ink: #E6C064;
  --gold-text: #F1D592;
  --guard-text: #F3A49E;
  --grad: linear-gradient(100deg, #5FD4C8 0%, #36B5AC 38%, #E6C064 100%);

  --nav-bg: rgba(8, 17, 31, .72);
  --menu-bg: rgba(8, 17, 31, .94);
  --hover: rgba(255, 255, 255, .06);
  --ghost-bg: rgba(255, 255, 255, .04);
  --ghost-hover: rgba(255, 255, 255, .08);
  --card-grad: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .01));
  --card-grad-2: linear-gradient(170deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .012) 60%);
  --panel: linear-gradient(170deg, rgba(14, 27, 46, .95), rgba(8, 17, 31, .95));
  --chat-bg: linear-gradient(180deg, rgba(14, 27, 46, .92), rgba(8, 16, 30, .96));
  --form-bg: linear-gradient(170deg, rgba(16, 30, 52, .85), rgba(8, 16, 30, .9));
  --input-bg: rgba(255, 255, 255, .03);
  --input-bg-focus: rgba(255, 255, 255, .05);
  --bubble-bg: rgba(255, 255, 255, .05);
  --chrome-bg: linear-gradient(180deg, #111F35, #0C1729);
  --source-bg: rgba(33, 101, 143, .35);
  --source-text: #BFE1F5;

  --shadow-xl: 0 60px 140px -30px rgba(0, 0, 0, .9);
  --shadow-lg: 0 50px 120px -30px rgba(0, 0, 0, .9);
  --shadow-md: 0 30px 70px -30px rgba(0, 0, 0, .8);
  --float-shadow: drop-shadow(0 24px 40px rgba(0, 0, 0, .55));
  --glow-teal: rgba(29, 151, 158, .35);
  --aurora-1: rgba(33, 101, 143, .75);
  --aurora-2: rgba(29, 151, 158, .6);
  --aurora-3: rgba(230, 192, 100, .22);
  --aurora-op: .55;
  --spot: rgba(95, 212, 200, .10);
  --loader-bg: radial-gradient(60% 60% at 50% 45%, #0B1A30 0%, #050B16 70%);
  --loader-text: #FFFFFF;
  --grain-op: .05;
  --footer-word: linear-gradient(180deg, rgba(234, 241, 248, .16), rgba(234, 241, 248, 0) 85%);
}


*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: auto; -webkit-tap-highlight-color: transparent; overflow-x: clip; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
code { font-family: var(--f-mono); font-size: .88em; color: var(--accent-text); }
kbd {
  font-family: var(--f-mono); font-size: .7em; font-weight: 500; padding: .15em .5em; border-radius: 8px;
  border: 1px solid var(--line-2); background: var(--surface-2); vertical-align: .15em;
}
::selection { background: rgba(54, 181, 172, .35); color: #fff; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }

/* Grano fílmico sutil sobre todo */
body::after {
  content: ''; position: fixed; inset: -50%; z-index: 90; pointer-events: none; opacity: var(--grain-op);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 200; background: var(--gold); color: var(--navy); padding: 8px 14px; border-radius: 10px; font-weight: 600; }
.skip:focus { left: 8px; }

/* ---------- Tipografía ---------- */
.eyebrow {
  font-family: var(--f-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent-text); display: inline-flex; align-items: center; gap: 10px;
}
h2 {
  font-family: var(--f-display); font-weight: 600; letter-spacing: -.035em; line-height: 1.02;
  font-size: clamp(2.2rem, 5vw, 4.4rem); margin-top: 18px;
}
h3 { font-family: var(--f-display); font-weight: 600; letter-spacing: -.02em; line-height: 1.15; }
.muted { color: var(--faint); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); font-size: clamp(1.02rem, 1.3vw, 1.2rem); max-width: 640px; margin-top: 22px; }
.fine { color: var(--faint); font-size: 13px; line-height: 1.55; margin-top: 18px; }
.section-head { margin-bottom: clamp(40px, 6vw, 72px); }

/* ---------- Botones ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 52px; padding: 0 26px; border-radius: 999px; font-weight: 600; font-size: 15px; letter-spacing: -.005em;
  border: 1px solid transparent; cursor: pointer; overflow: hidden; isolation: isolate;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), background-color .3s, border-color .3s;
  will-change: transform;
}
.btn > span, .btn > .arrow { position: relative; z-index: 1; }
.btn .arrow { font-style: normal; transition: transform .4s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }
.btn-gold { background: var(--gold); color: #0B1A2E; box-shadow: 0 10px 40px -12px rgba(230, 192, 100, .55); }
.btn-gold::before {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, .55) 45%, transparent 70%);
  transform: translateX(-120%); transition: transform .9s var(--ease);
}
.btn-gold:hover::before { transform: translateX(120%); }
.btn-gold:hover { box-shadow: 0 16px 50px -12px rgba(230, 192, 100, .75); }
.btn-ghost { background: var(--ghost-bg); border-color: var(--line-2); color: var(--text); backdrop-filter: blur(8px); }
.btn-ghost:hover { background: var(--ghost-hover); border-color: rgba(54, 181, 172, .55); }
.btn-sm { height: 42px; padding: 0 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* =====================================================================
   Loader: el isotipo se arma por capas
   ===================================================================== */
.loader { display: none; }
.js .loader {
  position: fixed; inset: 0; z-index: 150; display: grid; place-content: center; justify-items: center; gap: 28px;
  background: var(--loader-bg);
  animation: loaderSafety .6s 4.5s forwards;
}
@keyframes loaderSafety { to { opacity: 0; visibility: hidden; } }
.loader-mark { position: relative; width: min(300px, 62vw); aspect-ratio: 640 / 388; }
.lm { position: absolute; inset: 0; width: 100%; height: 100%; }
.loader-word {
  font-family: var(--f-display); font-weight: 600; letter-spacing: .38em; font-size: clamp(13px, 2.4vw, 18px);
  color: var(--loader-text); display: flex; gap: .05em; padding-left: .38em;
}
.loader-word span { display: inline-block; }
.loader-word .tri { color: var(--mint); margin: 0 .55em; font-size: .8em; transform: translateY(.1em); }

/* =====================================================================
   Navegación
   ===================================================================== */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100; padding: 14px var(--gutter);
  transition: transform .6s var(--ease);
}
.nav.is-hidden { transform: translateY(-110%); }
.nav-inner {
  max-width: var(--max); margin: 0 auto; display: flex; align-items: center; gap: 28px;
  padding: 10px 10px 10px 20px; border-radius: 999px; border: 1px solid transparent;
  transition: background-color .5s, border-color .5s, backdrop-filter .5s;
}
.nav.is-solid .nav-inner {
  background: var(--nav-bg); border-color: var(--line); backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
}
.nav-logo img { height: 34px; width: auto; }
.nav-links { display: flex; gap: 4px; margin-left: auto; }
.nav-links a {
  font-size: 14px; color: var(--muted); padding: 8px 14px; border-radius: 999px; transition: color .25s, background-color .25s;
}
.nav-links a:hover, .nav-links a.is-current { color: var(--text); background: var(--hover); }
.nav-burger { display: none; }
.nav-mobile { display: none; }

@media (max-width: 900px) {
  .nav-links, .nav-inner > .btn { display: none; }
  .nav-inner { padding-left: 16px; }
  .nav-burger {
    display: grid; place-content: center; gap: 6px; margin-left: auto; width: 44px; height: 44px; border-radius: 50%;
    background: var(--hover); border: 1px solid var(--line); cursor: pointer;
  }
  .nav-burger span { display: block; width: 18px; height: 1.5px; background: var(--text); transition: transform .4s var(--ease); }
  .nav-burger[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
  .nav-burger[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }
  .nav-mobile:not([hidden]) {
    display: flex; flex-direction: column; gap: 4px; margin-top: 10px; padding: 14px; border-radius: 24px;
    background: var(--menu-bg); border: 1px solid var(--line); backdrop-filter: blur(18px);
  }
  .nav-mobile a:not(.btn) { padding: 12px 14px; border-radius: 14px; font-size: 17px; }
  .nav-mobile a:not(.btn):hover { background: var(--hover); }
  .nav-mobile .btn { margin-top: 8px; }
  .nav-logo img { height: 30px; }
}

/* =====================================================================
   Hero
   ===================================================================== */
.hero { position: relative; padding: clamp(118px, 15vh, 160px) 0 0; overflow: hidden; isolation: isolate; }
.hero-bg { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.aurora { position: absolute; border-radius: 50%; filter: blur(90px); opacity: var(--aurora-op); }
.a1 { width: 60vw; height: 60vw; left: -18vw; top: -22vw; background: radial-gradient(circle, var(--aurora-1), transparent 65%); animation: drift1 22s ease-in-out infinite alternate; }
.a2 { width: 50vw; height: 50vw; right: -14vw; top: 4vw; background: radial-gradient(circle, var(--aurora-2), transparent 65%); animation: drift2 26s ease-in-out infinite alternate; }
.a3 { width: 34vw; height: 34vw; left: 38vw; top: 30vw; background: radial-gradient(circle, var(--aurora-3), transparent 65%); animation: drift1 30s ease-in-out infinite alternate-reverse; }
@keyframes drift1 { to { transform: translate3d(8vw, 6vw, 0) scale(1.12); } }
@keyframes drift2 { to { transform: translate3d(-6vw, 8vw, 0) scale(.9); } }
.grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(70% 55% at 50% 30%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(70% 55% at 50% 30%, #000 0%, transparent 75%);
  opacity: .5;
}
.spot {
  position: absolute; inset: 0;
  background: radial-gradient(520px circle at var(--mx, 50%) var(--my, 30%), var(--spot), transparent 60%);
}
.hero-copy { text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero-eyebrow {
  padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--ghost-bg);
  color: var(--text-2); letter-spacing: .22em; font-size: 11.5px; font-weight: 500;
}
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(54, 181, 172, 0); } }
.hero-title {
  font-family: var(--f-display); font-weight: 600; letter-spacing: -.045em; line-height: .98;
  font-size: clamp(2.7rem, 7.4vw, 6.4rem); margin-top: 24px;
}
.hero-title .line { display: block; }
.hero-title .grad { padding-bottom: .08em; }
.w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .12em; margin-bottom: -.12em; }
.w > span { display: inline-block; }
.hero-sub { max-width: 720px; color: var(--muted); font-size: clamp(1.02rem, 1.3vw, 1.18rem); margin-top: 24px; }
.hero-sub strong { color: var(--text); font-weight: 600; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 32px; }
.hero-facts { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 28px; margin-top: 30px; color: var(--muted); font-size: 14px; }
.hero-facts li { display: flex; align-items: baseline; gap: 6px; }
.hero-facts li + li::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--faint); margin-right: 22px; align-self: center; }
.hero-facts b { color: var(--text); font-family: var(--f-display); font-weight: 600; }

.hero-stage { position: relative; max-width: 1240px; margin: clamp(44px, 6vw, 72px) auto 0; padding: 0 var(--gutter); perspective: 1800px; }
.hero-frame {
  position: relative; border-radius: 18px; overflow: hidden; transform-origin: 50% 0%;
  border: 1px solid var(--line-2); background: var(--bg-2);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .03), var(--shadow-xl), 0 0 120px -20px var(--glow-teal);
  transform: rotateX(16deg) scale(.94);
}
.chrome {
  display: flex; align-items: center; gap: 7px; height: 36px; padding: 0 14px;
  background: var(--chrome-bg); border-bottom: 1px solid var(--line);
}
.chrome i { width: 10px; height: 10px; border-radius: 50%; background: #2A3A52; }
.chrome i:nth-child(1) { background: #E5675F; } .chrome i:nth-child(2) { background: #E6C064; } .chrome i:nth-child(3) { background: #36B5AC; }
.chrome span { margin: 0 auto; font-family: var(--f-mono); font-size: 11px; color: var(--faint); padding-right: 44px; }
.hero-frame > img { width: 100%; height: auto; }
.frame-glare { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(115deg, rgba(255, 255, 255, .09) 0%, transparent 32%); }
.hero-stage::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 45%; pointer-events: none;
  background: linear-gradient(180deg, transparent, var(--bg) 92%);
}
.float { position: absolute; z-index: 2; width: clamp(64px, 9vw, 130px); height: auto; filter: var(--float-shadow); pointer-events: none; }
.f-bot { left: -1%; top: 6%; width: clamp(84px, 12vw, 170px); }
.f-chart { right: 0; top: -6%; }
.f-money { left: 6%; top: 52%; width: clamp(56px, 7vw, 104px); }
.f-doc { right: 4%; top: 46%; width: clamp(52px, 6.5vw, 96px); }
.f-lock { left: 24%; top: -9%; width: clamp(44px, 5vw, 76px); opacity: .9; }
.f-chain { right: 22%; top: 70%; width: clamp(50px, 6vw, 90px); opacity: .9; }
.scroll-cue { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 3; width: 26px; height: 42px; border-radius: 14px; border: 1.5px solid var(--line-2); }
.scroll-cue span { position: absolute; left: 50%; top: 8px; width: 3px; height: 8px; margin-left: -1.5px; border-radius: 2px; background: var(--gold); animation: cue 2s var(--ease) infinite; }
@keyframes cue { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }
@media (max-width: 700px) {
  .float.f-lock, .float.f-chain, .float.f-doc { display: none; }
  .hero-facts li + li::before { display: none; }
  .hero-facts { gap: 8px 18px; }
  .scroll-cue { display: none; }
}

/* =====================================================================
   Marquesina normativa
   ===================================================================== */
.ticker { padding: clamp(56px, 8vw, 96px) 0 clamp(40px, 6vw, 72px); border-block: 1px solid var(--line); overflow: hidden; background: linear-gradient(180deg, var(--bg), var(--bg-2)); }
.ticker-label { display: flex; justify-content: center; text-align: center; padding: 0 var(--gutter); margin-bottom: 30px; color: var(--muted); }
.marquee { display: flex; overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee + .marquee { margin-top: 14px; }
.marquee-track { display: flex; flex: none; gap: 14px; padding-right: 14px; }
.marquee-track span {
  flex: none; white-space: nowrap; font-family: var(--f-display); font-size: clamp(1rem, 1.7vw, 1.35rem); font-weight: 500;
  padding: 12px 22px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--text-2);
}
.marquee[data-marquee="-1"] .marquee-track span { color: var(--muted); }
.marquee-track span:nth-child(3n+1) { border-color: rgba(54, 181, 172, .28); }
.marquee-track span:nth-child(5n+3) { border-color: rgba(230, 192, 100, .28); }

/* =====================================================================
   Manifiesto
   ===================================================================== */
.manifesto { padding: clamp(110px, 16vw, 200px) 0; }
.manifesto .wrap { max-width: 1120px; }
.manifesto-text {
  font-family: var(--f-display); font-weight: 500; letter-spacing: -.025em; line-height: 1.22;
  font-size: clamp(1.6rem, 3.6vw, 3.1rem); margin-top: 26px;
}
.manifesto-text .mw { transition: color .2s; }

/* =====================================================================
   Recorrido (pin en escritorio, tarjetas en móvil)
   ===================================================================== */
.tour { padding-top: clamp(40px, 6vw, 80px); }
.tour-rail, .tour-visual { display: none; }
.tour-steps { display: grid; gap: 24px; padding-inline: var(--gutter); max-width: var(--max); margin: 0 auto; }
.tour-step {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 22px 22px;
  background: var(--card-grad);
}
.step-icon { width: 64px; height: 64px; object-fit: contain; margin-bottom: 18px; }
.step-n { font-family: var(--f-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-ink); }
.tour-step h3 { font-size: clamp(1.6rem, 3vw, 2.5rem); margin-top: 10px; letter-spacing: -.03em; }
.tour-step > p:not(.step-n) { color: var(--muted); margin-top: 14px; max-width: 520px; }
.chips { display: flex; flex-direction: column; gap: 8px; margin-top: 22px; }
.chips li { position: relative; padding-left: 22px; font-size: 15px; color: var(--text-2); }
.chips li::before { content: ''; position: absolute; left: 2px; top: .62em; width: 8px; height: 8px; border-radius: 2px; transform: rotate(45deg); background: var(--mint); }
.chips b { color: var(--gold-text); font-weight: 600; }
.step-shot { margin-top: 24px; border-radius: 14px; overflow: hidden; border: 1px solid var(--line-2); box-shadow: var(--shadow-md); }
.step-shot img { width: 100%; height: auto; }

.tour-stage.tour-pinned {
  height: 100vh; height: 100svh; display: grid; align-items: center; gap: clamp(28px, 3.5vw, 56px);
  grid-template-columns: 150px minmax(0, .74fr) minmax(0, 1.62fr);
  max-width: 1560px; margin: 0 auto; padding: 90px var(--gutter) 40px;
}
.tour-pinned .tour-rail { display: flex; flex-direction: column; gap: 2px; position: relative; padding-left: 16px; }
.tour-pinned .tour-rail::before { content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 1px; background: var(--line-2); }
.tour-rail button {
  all: unset; cursor: pointer; display: block; font-size: 13px; color: var(--faint); padding: 6px 0; transition: color .3s, transform .4s var(--ease);
}
.tour-rail button:hover { color: var(--muted); }
.tour-rail button:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.tour-rail li.is-active button { color: var(--text); transform: translateX(6px); }
.tour-rail-dot { position: absolute; left: -3px; top: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 14px var(--gold); transition: transform .6s var(--ease); }
.tour-pinned .tour-steps { display: block; position: relative; height: min(560px, 72vh); padding: 0; margin: 0; }
.tour-pinned .tour-step {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center;
  border: 0; background: none; padding: 0; visibility: hidden;
}
.tour-pinned .tour-step.is-active { visibility: visible; }
.tour-pinned .step-shot { display: none; }
.tour-pinned .tour-visual { display: block; position: relative; }
.tour-pinned .tour-visual::before {
  content: ''; position: absolute; inset: -18% -10%; z-index: -1; pointer-events: none;
  background: radial-gradient(50% 50% at 55% 50%, rgba(29, 151, 158, .22), transparent 70%), radial-gradient(30% 30% at 85% 85%, rgba(230, 192, 100, .10), transparent 70%);
}
.device {
  position: relative; border-radius: 16px; overflow: hidden; border: 1px solid var(--line-2); background: var(--bg-2);
  box-shadow: var(--shadow-lg), 0 0 100px -30px var(--glow-teal);
}
.device-url { transition: opacity .3s; }
.screens { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.screens img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.tour-count { display: none; }
.tour-progress { height: 2px; margin-top: 22px; background: var(--line); border-radius: 2px; overflow: hidden; }
.tour-progress span { display: block; height: 100%; background: var(--grad); transform-origin: left; transform: scaleX(0); }

/* =====================================================================
   Módulos (horizontal)
   ===================================================================== */
.mods { padding-top: clamp(120px, 14vw, 180px); }
.mods-track {
  display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px var(--gutter) 30px;
  scrollbar-width: none;
}
.mods-track::-webkit-scrollbar { display: none; }
.mod-card {
  flex: none; width: min(78vw, 330px); scroll-snap-align: start; border-radius: 24px; padding: 28px 26px;
  border: 1px solid var(--line); background: var(--card-grad-2);
  position: relative; overflow: hidden; min-height: 400px; display: flex; flex-direction: column;
}
.mod-card::after { content: ''; position: absolute; inset: auto -30% -40% auto; width: 70%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(29, 151, 158, .18), transparent 70%); }
.mod-card img { width: 92px; height: 92px; object-fit: contain; }
.mod-count { font-family: var(--f-mono); font-size: 12px; color: var(--gold-ink); letter-spacing: .08em; text-transform: uppercase; margin-top: 26px; }
.mod-card h3 { font-size: 1.65rem; margin-top: 8px; }
.mod-card ul { margin-top: auto; padding-top: 26px; display: grid; gap: 10px; }
.mod-card li { color: var(--muted); font-size: 15px; padding-top: 10px; border-top: 1px solid var(--line); }
.mod-card-ia { background: linear-gradient(160deg, rgba(230, 192, 100, .12), rgba(29, 151, 158, .08) 60%); border-color: rgba(230, 192, 100, .3); }
.h-pinned .mods-pin { height: 100vh; height: 100svh; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.h-pinned .mods-head { margin-bottom: 40px; }
.h-pinned .mods-track { overflow: visible; scroll-snap-type: none; padding-left: max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter))); padding-right: 12vw; width: max-content; }
.h-pinned .mod-card { width: 340px; }

/* =====================================================================
   CHUDBOT
   ===================================================================== */
.bot-section { position: relative; padding: clamp(130px, 16vw, 200px) 0 clamp(80px, 10vw, 130px); overflow: hidden; }
.bot-glow { position: absolute; left: 50%; top: 18%; width: 1100px; height: 900px; transform: translateX(-50%); pointer-events: none; background: radial-gradient(closest-side, rgba(29, 151, 158, .22), transparent); }
.bot-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(28px, 4vw, 56px); align-items: start; position: relative; }
.bot-grid > * { min-width: 0; }
.bot-demo { position: relative; padding-top: 86px; }
.robot { position: absolute; top: 0; right: 170px; width: 150px; z-index: 2; filter: var(--float-shadow); overflow: visible; }
.r-eyes, .r-mouth { transform-box: fill-box; transform-origin: center; }
.r-ping { transform-box: fill-box; transform-origin: center; opacity: 0; }
.chat {
  position: relative; border-radius: 24px; border: 1px solid var(--line-2); overflow: hidden;
  background: var(--chat-bg);
  box-shadow: var(--shadow-lg);
}
.chat-head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.chat-head img { width: 34px; height: 34px; object-fit: contain; }
.chat-head strong { display: block; font-family: var(--f-display); font-size: 15px; letter-spacing: .02em; }
.chat-head span { font-size: 12px; color: var(--faint); }
.chat-live { margin-left: auto; display: inline-flex; align-items: center; gap: 7px; font-family: var(--f-mono); font-size: 11px !important; color: var(--accent-text) !important; padding: 5px 10px; border-radius: 999px; border: 1px solid rgba(54, 181, 172, .3); }
.chat-live i { width: 6px; height: 6px; border-radius: 50%; background: var(--mint); animation: pulse 2s infinite; }
.chat-body { height: 440px; padding: 18px; display: flex; flex-direction: column; justify-content: flex-end; gap: 12px; overflow: hidden; }
.chat-input { display: flex; align-items: center; gap: 12px; margin: 0 14px 14px; padding: 12px 14px 12px 18px; border-radius: 14px; border: 1px solid var(--line); background: var(--input-bg); color: var(--faint); font-size: 14px; }
.chat-input span { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-input span.is-typing { color: var(--text); }
.chat-input b { width: 30px; height: 30px; display: grid; place-content: center; border-radius: 9px; background: var(--gold); color: var(--navy); font-size: 14px; }
.msg { max-width: 88%; padding: 12px 15px; border-radius: 16px; font-size: 14.5px; line-height: 1.55; }
.msg-user { align-self: flex-end; background: linear-gradient(135deg, #1F5F87, #1B4E73); border-bottom-right-radius: 5px; color: #EEF5FC; }
.msg-bot { align-self: flex-start; background: var(--bubble-bg); border: 1px solid var(--line); border-bottom-left-radius: 5px; color: var(--text-2); }
.msg-bot strong { color: var(--strong); }
.tool {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 9px; font-size: 13px; font-weight: 500;
  padding: 7px 12px; border-radius: 999px; border: 1px solid rgba(54, 181, 172, .35); background: rgba(54, 181, 172, .08); color: var(--accent-text);
}
.tool.is-write { border-color: rgba(230, 192, 100, .4); background: rgba(230, 192, 100, .1); color: var(--gold-text); }
.tool.is-guard { border-color: rgba(229, 103, 95, .45); background: rgba(229, 103, 95, .08); color: var(--guard-text); }
.tool .spin { width: 11px; height: 11px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; }
.tool .ok { display: none; }
.tool.is-done .spin { display: none; }
.tool.is-done .ok { display: inline; }
@keyframes spin { to { transform: rotate(360deg); } }
.confirm { align-self: flex-start; width: min(100%, 360px); border-radius: 16px; border: 1px solid rgba(230, 192, 100, .4); background: rgba(230, 192, 100, .06); padding: 14px 15px; font-size: 13.5px; }
.confirm p { color: var(--gold-text); font-weight: 600; margin-bottom: 8px; }
.confirm dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 0; }
.confirm dt { color: var(--faint); }
.confirm dd { margin: 0; color: var(--text); font-family: var(--f-mono); font-size: 12.5px; word-break: break-all; }
.confirm-btns { display: flex; gap: 8px; margin-top: 12px; }
.confirm-btns span { padding: 7px 14px; border-radius: 10px; font-weight: 600; font-size: 13px; border: 1px solid var(--line-2); color: var(--muted); }
.confirm-btns .yes { background: var(--gold); color: var(--navy); border-color: var(--gold); transition: transform .2s, box-shadow .2s; }
.confirm-btns .yes.is-press { transform: scale(.94); box-shadow: 0 0 0 6px rgba(230, 192, 100, .25); }
.source { display: inline-flex; gap: 6px; margin-top: 8px; font-family: var(--f-mono); font-size: 11.5px; padding: 4px 9px; border-radius: 8px; background: var(--source-bg); color: var(--source-text); }
.typing { align-self: flex-start; display: inline-flex; gap: 5px; padding: 14px 16px; border-radius: 16px; background: var(--bubble-bg); border: 1px solid var(--line); }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: typing 1.1s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; } .typing i:nth-child(3) { animation-delay: .3s; }
@keyframes typing { 0%, 60%, 100% { transform: translateY(0); opacity: .4; } 30% { transform: translateY(-4px); opacity: 1; } }

.bot-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding-top: 86px; }
.spec { border-radius: 20px; border: 1px solid var(--line); background: var(--surface); padding: 22px 22px 20px; }
.spec-wide { grid-column: 1 / -1; }
.spec-k { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); }
.spec-v { font-family: var(--f-display); font-weight: 600; letter-spacing: -.03em; font-size: clamp(1.7rem, 2.8vw, 2.4rem); margin-top: 8px; line-height: 1.1; }
.spec-v small { font-size: .5em; color: var(--muted); font-weight: 500; letter-spacing: 0; }
.spec-d { color: var(--muted); font-size: 14.5px; margin-top: 8px; }
.spec-files { display: flex; flex-wrap: wrap; gap: 8px; font-size: 14px; letter-spacing: 0; }
.spec-files span { font-family: var(--f-mono); font-weight: 500; padding: 6px 11px; border-radius: 9px; border: 1px solid var(--line-2); color: var(--text-2); }

.rag { margin-top: clamp(80px, 10vw, 130px); }
.rag-title { font-size: clamp(1.5rem, 2.6vw, 2.2rem); text-align: center; }
.rag-flow { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 44px; }
.rag-flow::before { content: ''; position: absolute; left: 10%; right: 10%; top: 22px; height: 2px; background: var(--line-2); }
.rag-flow::after { content: ''; position: absolute; left: 10%; right: 10%; top: 22px; height: 2px; background: var(--grad); transform-origin: left; transform: scaleX(var(--rag, 0)); }
.rag-flow li { position: relative; z-index: 1; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.rag-n { width: 46px; height: 46px; border-radius: 50%; display: grid; place-content: center; font-family: var(--f-mono); font-weight: 500; background: var(--bg-3); border: 1px solid var(--line-2); color: var(--muted); margin-bottom: 10px; transition: background-color .4s, color .4s, border-color .4s, box-shadow .4s; }
.rag-flow li.is-on .rag-n { background: var(--mint); color: var(--navy); border-color: var(--mint); box-shadow: 0 0 30px rgba(54, 181, 172, .5); }
.rag-flow strong { font-family: var(--f-display); font-weight: 600; }
.rag-flow small { color: var(--muted); font-size: 13.5px; max-width: 200px; }

/* =====================================================================
   Comparador de temas
   ===================================================================== */
.themes { padding: clamp(110px, 14vw, 180px) 0 clamp(60px, 8vw, 100px); }
.compare { position: relative; border-radius: 18px; overflow: hidden; border: 1px solid var(--line-2); box-shadow: var(--shadow-xl); --pos: 50%; user-select: none; touch-action: pan-y; }
.compare img { -webkit-user-drag: none; pointer-events: none; }  /* evita que el navegador arrastre la imagen y cancele el gesto */
.compare > img { width: 100%; height: auto; }
.compare-top { position: absolute; inset: 0; clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.compare-top img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.compare { cursor: ew-resize; }
.compare input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; margin: 0; z-index: 3; pointer-events: none; }
.compare-handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; margin-left: -1px; background: var(--gold); z-index: 2; pointer-events: none; box-shadow: 0 0 20px rgba(230, 192, 100, .6); }
.compare-handle span { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 52px; height: 52px; border-radius: 50%; display: grid; place-content: center; background: var(--gold); color: var(--navy); font-weight: 700; letter-spacing: 2px; box-shadow: 0 10px 30px rgba(0, 0, 0, .5); }
.compare input:focus-visible ~ .compare-handle span { outline: 3px solid var(--text); outline-offset: 3px; }
.compare.is-dragging .compare-handle span { transform: translate(-50%, -50%) scale(1.12); }
.compare-handle span { transition: transform .3s var(--ease); }
.compare-tag { position: absolute; bottom: 16px; z-index: 2; font-family: var(--f-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; backdrop-filter: blur(10px); pointer-events: none; }
.tag-l { left: 16px; background: rgba(5, 11, 22, .7); color: #fff; border: 1px solid var(--line-2); }
.tag-r { right: 16px; background: rgba(255, 255, 255, .8); color: var(--navy); }

/* =====================================================================
   Seguridad y control
   ===================================================================== */
.tech { padding: clamp(110px, 14vw, 180px) 0 clamp(60px, 8vw, 100px); }
.arch { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(2, auto); gap: clamp(28px, 4vw, 56px) clamp(40px, 8vw, 120px); }
.arch-lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.arch-lines .flow { fill: none; stroke: rgba(54, 181, 172, .55); stroke-width: 1.5; stroke-dasharray: 4 9; animation: flow 1.6s linear infinite; vector-effect: non-scaling-stroke; }
@keyframes flow { to { stroke-dashoffset: -26; } }
.node { position: relative; z-index: 1; border-radius: 22px; border: 1px solid var(--line-2); padding: 24px; background: var(--panel); box-shadow: var(--shadow-md); }
.node-k { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-ink); }
.node h3 { font-size: 1.35rem; margin-top: 8px; }
.node p:not(.node-k) { color: var(--muted); font-size: 14.5px; margin-top: 10px; }
.node b { color: var(--text); font-family: var(--f-display); }
.n-front { grid-column: 1; grid-row: 1; }
.n-ext { grid-column: 1; grid-row: 2; }
.n-api { grid-column: 2; grid-row: 1 / 3; align-self: center; border-color: rgba(54, 181, 172, .5); box-shadow: 0 0 80px -20px var(--glow-teal), var(--shadow-md); }
.n-db { grid-column: 3; grid-row: 1; }
.n-ai { grid-column: 3; grid-row: 2; border-color: rgba(230, 192, 100, .4); }

/* =====================================================================
   Números
   ===================================================================== */
.numbers { padding: clamp(110px, 14vw, 180px) 0 clamp(80px, 10vw, 130px); background: linear-gradient(180deg, var(--bg), var(--bg-2) 30%, var(--bg)); }
.num-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.num { padding: clamp(24px, 3vw, 40px) clamp(18px, 2vw, 30px); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.num-v { font-family: var(--f-display); font-weight: 600; letter-spacing: -.045em; line-height: 1; font-size: clamp(2.4rem, 5vw, 4.6rem); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; font-variant-numeric: tabular-nums; }
.num-k { color: var(--muted); margin-top: 12px; font-size: 15px; max-width: 260px; }
.num-note { margin-top: 22px; }
/* =====================================================================
   Hecho en México
   ===================================================================== */
.made { padding: clamp(80px, 10vw, 130px) 0; border-top: 1px solid var(--line); }
.made-inner { display: grid; grid-template-columns: minmax(0, 280px) minmax(0, 1fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.made-logo-wrap { width: 100%; max-width: 280px; }
.made-logo { width: 100%; max-width: 280px; height: auto; }
.made h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
.made-list { margin-top: 28px; display: grid; gap: 12px; }
.made-list li { color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.15rem); padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.made-list strong { color: var(--text); font-family: var(--f-display); font-weight: 500; }

/* =====================================================================
   Contacto
   ===================================================================== */
.cta { position: relative; padding: clamp(110px, 14vw, 180px) 0; overflow: hidden; }
.cta-glow { position: absolute; inset: 0; pointer-events: none; background: radial-gradient(50% 60% at 15% 40%, rgba(33, 101, 143, .35), transparent 70%), radial-gradient(40% 50% at 90% 70%, rgba(230, 192, 100, .12), transparent 70%); }
.cta-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 90px); align-items: center; }
.cta-points { margin-top: 30px; display: grid; gap: 12px; }
.cta-points li { position: relative; padding-left: 30px; color: var(--text-2); }
.cta-points li::before { content: '✓'; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; display: grid; place-content: center; font-size: 11px; font-weight: 700; color: var(--navy); background: var(--mint); margin-top: 3px; }
.form { border-radius: 28px; border: 1px solid var(--line-2); padding: clamp(22px, 3vw, 36px); background: var(--form-bg); backdrop-filter: blur(16px); box-shadow: var(--shadow-lg); display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label { font-size: 13.5px; color: var(--muted); font-weight: 500; }
.field input, .field textarea {
  width: 100%; padding: 13px 15px; border-radius: 13px; border: 1px solid var(--line-2); background: var(--input-bg);
  transition: border-color .25s, box-shadow .25s, background-color .25s; resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: var(--faint); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--mint); box-shadow: 0 0 0 4px rgba(54, 181, 172, .15); background: var(--input-bg-focus); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: #E5675F; }
.form-status { min-height: 1.4em; font-size: 14px; text-align: center; color: var(--muted); }
.form-status.success { color: var(--accent-text); }
.form-status.error { color: var(--guard-text); }

/* =====================================================================
   Pie
   ===================================================================== */
.footer { border-top: 1px solid var(--line); padding-top: 60px; overflow: hidden; }
.footer-top { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-logo { height: 40px; width: auto; }
.footer-top > div p { color: var(--muted); margin-top: 14px; font-size: 15px; max-width: 340px; }
.footer nav { display: flex; flex-wrap: wrap; gap: 8px 26px; align-content: flex-start; }
.footer nav a { color: var(--muted); font-size: 15px; transition: color .25s; }
.footer nav a:hover { color: var(--text); }
.footer-word {
  font-family: var(--f-display); font-weight: 700; letter-spacing: -.06em; line-height: .8; text-align: center;
  font-size: clamp(5rem, 24vw, 22rem); margin-top: 50px;
  background: var(--footer-word);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 22px 30px; border-top: 1px solid var(--line); color: var(--faint); font-size: 13.5px; }

/* =====================================================================
   Cambio de tema
   ===================================================================== */
.theme-toggle {
  position: relative; display: grid; place-content: center; width: 42px; height: 42px; border-radius: 50%;
  border: 1px solid var(--line-2); background: var(--ghost-bg); color: var(--text); cursor: pointer; flex: none;
  transition: background-color .3s, border-color .3s, transform .5s var(--ease);
}
.theme-toggle:hover { background: var(--ghost-hover); border-color: rgba(54, 181, 172, .55); }
.theme-toggle svg { grid-area: 1 / 1; width: 19px; height: 19px; transition: transform .6s var(--ease), opacity .4s; }
.theme-toggle .i-sun { opacity: 0; transform: rotate(90deg) scale(.5); }
[data-theme="dark"] .theme-toggle .i-sun { opacity: 1; transform: none; }
[data-theme="dark"] .theme-toggle .i-moon { opacity: 0; transform: rotate(-90deg) scale(.5); }
.nav-links + .theme-toggle { margin-left: 4px; }

/* Logotipos e imágenes por tema */
:root:not([data-theme="dark"]) .only-dark { display: none !important; }
[data-theme="dark"] .only-light { display: none !important; }

/* Transición circular entre temas (View Transitions) */
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
.theme-fade, .theme-fade * { transition: background-color .45s ease, color .45s ease, border-color .45s ease, box-shadow .45s ease !important; }

@media (max-width: 900px) {
  .theme-toggle { margin-left: auto; width: 44px; height: 44px; }
  .theme-toggle ~ .nav-burger { margin-left: 8px; }
}

/* =====================================================================
   Responsivo
   ===================================================================== */
@media (max-width: 1100px) {
  .bot-grid, .cta-grid { grid-template-columns: 1fr; }
  .bot-specs { padding-top: 0; }
  .num-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .arch { grid-template-columns: 1fr; grid-template-rows: none; }
  .arch-lines { display: none; }
  .n-front, .n-ext, .n-api, .n-db, .n-ai { grid-column: auto; grid-row: auto; }
  .n-api { order: -1; }
  .rag-flow { grid-template-columns: 1fr; gap: 22px; }
  .rag-flow::before, .rag-flow::after { left: 22px; right: auto; top: 8px; bottom: 8px; width: 2px; height: auto; }
  .rag-flow::after { transform-origin: top; transform: scaleY(var(--rag, 0)); }
  .rag-flow li { flex-direction: row; text-align: left; flex-wrap: wrap; column-gap: 14px; row-gap: 0; padding-left: 0; }
  .rag-flow li .rag-n { margin-bottom: 0; }
  .rag-flow li strong { flex: 1; }
  .rag-flow li small { flex-basis: 100%; padding-left: 60px; max-width: none; }
  .made-inner { grid-template-columns: 1fr; }
  .made-logo { max-width: 180px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .bot-specs { grid-template-columns: 1fr; }
  .num-grid { grid-template-columns: 1fr 1fr; }
  .num-v { font-size: 2.3rem; }
  .field-row { grid-template-columns: 1fr; }
  .chat-body { height: 400px; padding: 14px; }
  .msg { max-width: 94%; font-size: 14px; }
  .robot { width: 110px; right: 12px; }
  .chat-live { display: none !important; }
  .bot-demo { padding-top: 64px; }
  .compare-handle span { width: 42px; height: 42px; }
  .hero-ctas .btn { width: 100%; }
}

/* =====================================================================
   Celular: experiencias fijadas propias (las activa main.js)
   ===================================================================== */
@media (max-width: 1023px) {
  /* Hero: el Dashboard se recorre como con una cámara */
  .hero-pan .hero-frame { width: 172%; max-width: none; }
  .hero-pan .hero-stage { margin-top: 36px; }

  /* Recorrido fijado en vertical: pantalla arriba, texto abajo */
  .tour-stage.tour-pinned {
    display: flex; flex-direction: column; align-items: stretch; height: 100vh; height: 100svh; gap: 16px;
    max-width: 720px; margin: 0 auto; padding: 74px var(--gutter) 14px;
  }
  .tour-pinned .tour-rail { display: none; }
  .tour-pinned .tour-visual { display: block; order: -1; flex: none; }
  .tour-pinned .tour-visual::before { inset: -12% -4%; }
  .tour-pinned .tour-count {
    display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px;
    font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
  }
  .tour-count b { color: var(--gold-ink); font-weight: 500; font-size: 14px; }
  .tour-pinned .device { border-radius: 14px; }
  .tour-pinned .chrome { height: 26px; padding: 0 10px; gap: 5px; }
  .tour-pinned .chrome i { width: 8px; height: 8px; }
  .tour-pinned .chrome span { font-size: 9.5px; padding-right: 30px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .tour-pinned .screens { aspect-ratio: 16 / 10.5; }
  .tour-pinned.is-pan .screens img { inset: 0 auto auto 0; width: auto; height: 132%; max-width: none; object-fit: fill; will-change: transform; }
  .tour-pinned .tour-progress { margin-top: 12px; }
  .tour-pinned .tour-steps { flex: 1; min-height: 0; height: auto; }
  .tour-pinned .tour-step { justify-content: flex-start; }
  .tour-pinned .step-icon { position: absolute; top: 0; right: 0; width: 50px; height: 50px; margin: 0; }
  .tour-pinned .step-n { font-size: 11px; padding-right: 60px; }
  .tour-pinned .tour-step h3 { font-size: clamp(1.32rem, 5.6vw, 1.8rem); margin-top: 6px; padding-right: 58px; }
  .tour-pinned .tour-step > p:not(.step-n) { font-size: 14.5px; line-height: 1.5; margin-top: 8px; }
  .tour-pinned .chips { flex-direction: row; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
  .tour-pinned .chips li {
    font-size: 12.5px; line-height: 1.35; padding: 6px 11px 6px 23px; border-radius: 999px;
    border: 1px solid var(--line-2); background: var(--surface);
  }
  .tour-pinned .chips li::before { left: 10px; top: 50%; margin-top: -3px; width: 6px; height: 6px; }

  /* Módulos fijados con desplazamiento horizontal */
  .h-pinned .mods-pin { padding-top: 64px; }
  .h-pinned .mods-head { margin-bottom: 22px; }
  .h-pinned .mod-card { width: min(78vw, 330px); min-height: 360px; }
}
@media (max-width: 1023px) and (max-height: 760px) {
  .tour-pinned .screens { aspect-ratio: 16 / 9.4; }
  .tour-pinned .step-icon { width: 42px; height: 42px; }
  .h-pinned .mods-head .lead { display: none; }
  .h-pinned .mod-card { min-height: 330px; padding: 22px; }
  .h-pinned .mod-card img { width: 72px; height: 72px; }
}
@media (max-width: 860px) {
  /* Arquitectura en vertical: línea de datos que fluye entre capas */
  .arch::before {
    content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; margin-left: -1px; pointer-events: none;
    background: repeating-linear-gradient(180deg, rgba(54, 181, 172, .7) 0 6px, transparent 6px 14px); animation: flowY .9s linear infinite;
  }
  @keyframes flowY { to { background-position: 0 14px; } }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js .loader { display: none; }
  .hero-frame { transform: none; }
  .tour-pinned.is-pan .screens img { inset: 0; width: 100%; height: 100%; object-fit: cover; }
}

/* ---------- Preguntas frecuentes ---------- */
.faq { padding: clamp(70px, 10vw, 130px) 0; }
.faq-list { max-width: 820px; display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 56px 18px 22px; position: relative; font-family: var(--f-display); font-weight: 500; font-size: 1.05rem; color: var(--text); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--accent-text); transition: transform .25s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq summary:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 2px; border-radius: 16px; }
.faq details p { padding: 0 22px 20px; color: var(--muted); }
.faq details a { color: var(--accent-text); text-decoration: underline; }