:root {
  --ink: #f2f5f1;
  --muted: #9bb0b0;
  --canvas: #050d10;
  --surface: #0b171b;
  --line: rgba(220, 245, 240, 0.14);
  --cyan: #22d3c5;
  --cyan-soft: #b7f5ee;
  --heat: #ef9b47;
  --gutter: clamp(20px, 5vw, 72px);
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }

html { background: var(--canvas); scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: "Archivo", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
body.menu-open { overflow: hidden; }

a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
::selection { background: var(--cyan); color: #021012; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

/* ── Cabecera ─────────────────────────────────────────── */
.page-progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 200; }
.page-progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--cyan), var(--heat)); }

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 0 var(--gutter);
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(5, 13, 16, 0.72);
  backdrop-filter: blur(14px);
  border-color: var(--line);
}

.wordmark { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: 0.02em; }
.wordmark img { display: block; }
.wordmark b { font-weight: 800; color: var(--cyan); }

.desktop-nav { display: flex; gap: 34px; font-size: 0.9rem; color: var(--muted); }
.desktop-nav a { transition: color 0.2s; }
.desktop-nav a:hover { color: var(--ink); }

.header-cta {
  font-size: 0.85rem; font-weight: 600;
  padding: 10px 18px; border: 1px solid var(--line); border-radius: 999px;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.header-cta:hover { background: var(--cyan); color: #021012; border-color: var(--cyan); }

.menu-toggle { display: none; width: 44px; height: 44px; border: 0; background: none; position: relative; cursor: pointer; }
.menu-toggle span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--ink); transition: transform 0.25s; }
.menu-toggle span:first-child { top: 17px; }
.menu-toggle span:last-child { top: 25px; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; z-index: 90;
  display: flex; flex-direction: column; justify-content: center; gap: 22px;
  padding: 0 var(--gutter);
  background: rgba(5, 13, 16, 0.97);
  font-size: clamp(1.8rem, 8vw, 2.6rem); font-weight: 700;
}
.mobile-nav[hidden] { display: none; }

/* ── Escenario 3D con scroll ──────────────────────────── */
/* Recorrido corto: la animación completa se recorre con ~3 pantallas de scroll (320vh en PC, 200vh en celular) */
.scrolly { position: relative; height: 420vh; }
.scrolly-anchor { position: absolute; top: 0; }

.stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; }

.stage-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 55% at 70% 48%, rgba(34, 211, 197, 0.16), transparent 70%),
    radial-gradient(40% 40% at 85% 85%, rgba(239, 155, 71, 0.09), transparent 70%),
    linear-gradient(180deg, #071318 0%, #050d10 100%);
}
.stage-bg::after {
  content: ""; position: absolute; inset: 0; opacity: 0.5;
  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% 70% at 60% 50%, #000 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 70% at 60% 50%, #000 0%, transparent 80%);
}

#gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.stage-fallback { display: none; }
.no-webgl .stage-fallback {
  display: block; position: absolute; right: 4%; top: 50%; width: min(60vw, 760px);
  transform: translateY(-50%); opacity: 0.9; object-fit: contain;
}
.no-webgl #gl { display: none; }

.part-labels { position: absolute; inset: 0; pointer-events: none; }
.part-label {
  position: absolute; left: 0; top: 0; white-space: nowrap;
  font: 500 0.7rem/1 "IBM Plex Mono", monospace; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--cyan-soft);
  opacity: 0; transition: opacity 0.4s;
  will-change: transform;
}
.part-label::before {
  content: ""; position: absolute; left: 0; width: 1px; height: 26px; background: var(--cyan);
}
.part-label::after {
  content: ""; position: absolute; left: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
}
.part-label[data-side="up"]::before { bottom: 0; transform: translateY(-4px); }
.part-label[data-side="up"]::after { top: 0; transform: translateY(4px); }
.part-label[data-side="up"] { padding: 0 0 34px 10px; margin-top: -34px; }
.part-label[data-side="down"] { padding: 34px 0 0 10px; }
.part-label[data-side="down"]::before { top: 0; }
.part-label[data-side="down"]::after { top: 0; transform: translateY(-4px); }
.part-label[data-side="up"]::before { top: auto; bottom: 0; height: 28px; }

/* Capítulos */
.chapters { position: absolute; inset: 0; pointer-events: none; }
.chapter {
  position: absolute; left: var(--gutter); bottom: 13vh;
  width: min(30rem, 86vw);
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.chapter.is-active { opacity: 1; transform: none; }
.chapter.is-active .actions { pointer-events: auto; }

.chapter[data-chapter="0"] { bottom: auto; top: 50%; width: min(40rem, 90vw); transform: translateY(calc(-50% + 28px)); }
.chapter[data-chapter="0"].is-active { transform: translateY(-50%); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px; margin-bottom: 22px;
  font: 500 0.75rem/1 "IBM Plex Mono", monospace; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cyan);
}
.eyebrow span { width: 34px; height: 1px; background: var(--cyan); }

h1 {
  font-size: clamp(2.6rem, 6.4vw, 5.6rem); line-height: 0.96; letter-spacing: -0.035em; font-weight: 800;
}
h1 em { font-style: normal; color: var(--cyan); }

.lead { margin-top: 24px; max-width: 30rem; font-size: clamp(1rem, 1.3vw, 1.2rem); line-height: 1.55; color: #c3d2d1; }

.chapter-number {
  margin-bottom: 16px;
  font: 500 0.75rem/1 "IBM Plex Mono", monospace; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cyan);
}
.chapter h2 { font-size: clamp(2rem, 3.8vw, 3.4rem); line-height: 1; letter-spacing: -0.03em; font-weight: 800; }
.chapter > p:not(.chapter-number):not(.eyebrow):not(.lead) { margin-top: 18px; line-height: 1.6; color: #b8c9c8; }

.actions { margin-top: 32px; display: flex; flex-wrap: wrap; align-items: center; gap: 22px; }

.button {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 26px; border-radius: 999px; font-weight: 700; font-size: 0.95rem;
  background: var(--cyan); color: #021012;
  pointer-events: auto;
  transition: transform 0.25s, box-shadow 0.25s;
  box-shadow: 0 0 0 0 rgba(34, 211, 197, 0.5);
}
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 40px -8px rgba(34, 211, 197, 0.6); }
.text-link { pointer-events: auto; font-weight: 600; color: var(--cyan-soft); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.text-link:hover { border-color: var(--cyan-soft); }

/* HUD */
.hud {
  position: absolute; left: var(--gutter); right: var(--gutter); bottom: 4.5vh;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  font: 500 0.7rem/1 "IBM Plex Mono", monospace; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
}
.hud-meter { display: flex; align-items: center; gap: 14px; }
.hud-track { width: min(160px, 28vw); height: 2px; background: var(--line); position: relative; }
.hud-track span { position: absolute; inset: 0 auto 0 0; width: 0; background: var(--cyan); }
.hud-value { min-width: 3ch; color: var(--cyan); }
.hud-dots { display: flex; gap: 8px; }
.hud-dots span { width: 6px; height: 6px; border-radius: 50%; background: var(--line); transition: background 0.3s, transform 0.3s; }
.hud-dots span.is-active { background: var(--cyan); transform: scale(1.5); }

.scroll-cue {
  position: absolute; right: var(--gutter); bottom: 9vh;
  display: flex; align-items: center; gap: 12px;
  font: 500 0.7rem/1 "IBM Plex Mono", monospace; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
  transition: opacity 0.4s;
}
.scroll-cue.is-hidden { opacity: 0; }
.scroll-cue span { width: 1px; height: 46px; background: linear-gradient(var(--cyan), transparent); transform-origin: top; animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ── Marquee ──────────────────────────────────────────── */
.marquee { overflow: hidden; border-block: 1px solid var(--line); padding: 26px 0; background: var(--surface); }
.marquee-track { display: flex; width: max-content; gap: 56px; animation: marquee 32s linear infinite; }
.marquee-track span {
  font-size: clamp(1.6rem, 3.4vw, 3rem); font-weight: 800; letter-spacing: -0.02em; text-transform: uppercase;
  color: transparent; -webkit-text-stroke: 1px rgba(183, 245, 238, 0.45);
}
.marquee-track span:nth-child(even) { color: var(--cyan); -webkit-text-stroke: 0; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ── Secciones ────────────────────────────────────────── */
.section-index { margin-bottom: 22px; font: 500 0.75rem/1 "IBM Plex Mono", monospace; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cyan); }

.services, .process, .contact { padding: clamp(80px, 12vw, 160px) var(--gutter); }

.services-heading h2, .process-intro h2, .contact h2 {
  font-size: clamp(2.2rem, 5.6vw, 5rem); line-height: 1; letter-spacing: -0.035em; font-weight: 800; max-width: 16ch;
}

.service-list { margin-top: clamp(40px, 6vw, 80px); border-top: 1px solid var(--line); }
.service-row {
  display: grid; grid-template-columns: 70px 1.2fr 1fr; align-items: baseline; gap: 24px;
  padding: 34px 0; border-bottom: 1px solid var(--line);
  transition: padding 0.35s, background 0.35s, color 0.35s;
}
.service-row:hover { padding-left: 18px; background: linear-gradient(90deg, rgba(34, 211, 197, 0.09), transparent 70%); }
.service-number { font: 500 0.8rem "IBM Plex Mono", monospace; color: var(--cyan); }
.service-row h3 { font-size: clamp(1.3rem, 2.4vw, 2rem); letter-spacing: -0.02em; font-weight: 700; }
.service-row p { color: var(--muted); line-height: 1.55; }

.process { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 6vw, 96px); background: var(--surface); }
.process-intro { position: sticky; top: calc(var(--header-h) + 40px); align-self: start; }
.process-intro p:last-child { margin-top: 22px; color: var(--muted); line-height: 1.6; max-width: 28rem; }
.process-steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.process-steps li { display: flex; gap: 28px; padding: 38px 0; border-bottom: 1px solid var(--line); }
.process-steps li:first-child { border-top: 1px solid var(--line); }
.process-steps li > span { font: 800 clamp(2.4rem, 4vw, 3.6rem)/1 "Archivo", sans-serif; color: transparent; -webkit-text-stroke: 1px var(--cyan); min-width: 2.4ch; }
.process-steps h3 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
.process-steps p { margin-top: 8px; color: var(--muted); line-height: 1.55; }

.contact { text-align: left; background: radial-gradient(60% 80% at 80% 100%, rgba(34, 211, 197, 0.14), transparent 70%), var(--canvas); }
.contact-action {
  margin-top: 48px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 30px 34px; border: 1px solid var(--cyan); border-radius: 18px;
  font-size: clamp(1.1rem, 2.4vw, 1.9rem); font-weight: 700; letter-spacing: -0.02em;
  transition: background 0.3s, color 0.3s;
}
.contact-action:hover { background: var(--cyan); color: #021012; }
.contact footer {
  margin-top: clamp(70px, 10vw, 140px); padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px;
  font: 400 0.75rem "IBM Plex Mono", monospace; letter-spacing: 0.08em; color: var(--muted); text-transform: uppercase;
}
.contact footer a:hover { color: var(--cyan); }

/* Revelado */
[data-reveal] { opacity: 0; transform: translateY(34px); transition: opacity 0.7s ease, transform 0.7s ease, padding 0.35s, background 0.35s; }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 900px) {
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle { display: block; }

  .scrolly { height: 300vh; }

  .stage-bg {
    background:
      radial-gradient(70% 40% at 50% 70%, rgba(34, 211, 197, 0.18), transparent 70%),
      linear-gradient(180deg, #071318 0%, #050d10 100%);
  }

  /* El modelo ocupa la parte baja; el texto va arriba. */
  .chapter, .chapter[data-chapter="0"] {
    top: calc(var(--header-h) + 14px); bottom: auto; width: auto; right: var(--gutter);
    transform: translateY(20px);
  }
  .chapter.is-active, .chapter[data-chapter="0"].is-active { transform: none; }
  .chapter h2 { font-size: clamp(1.7rem, 7vw, 2.4rem); }
  .chapter > p:not(.chapter-number):not(.eyebrow):not(.lead) { font-size: 0.92rem; margin-top: 12px; }
  .lead { font-size: 0.98rem; margin-top: 16px; }
  .eyebrow { margin-bottom: 14px; }
  .actions { margin-top: 20px; gap: 16px; }
  .button { padding: 14px 20px; }
  .hud { bottom: 3vh; }
  .scroll-cue { display: none; }

  .service-row { grid-template-columns: 44px 1fr; }
  .service-row p { grid-column: 2; }
  .process { grid-template-columns: 1fr; }
  .process-intro { position: static; }
  .contact-action { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee-track, .scroll-cue span { animation: none; }
  [data-reveal], .chapter { transition: none; }
}

/* ── Formulario de contacto ───────────────────────────── */
.mobile-nav-logo { width: 200px; height: auto; margin-bottom: 18px; }
.footer-logo { height: 34px; width: auto; display: block; }

.contact-grid { margin-top: clamp(36px, 5vw, 64px); display: grid; grid-template-columns: 0.8fr 1.4fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.contact-lead { font-size: 1.15rem; line-height: 1.6; color: #c3d2d1; max-width: 26rem; }
.contact-direct { display: inline-flex; gap: 8px; margin-top: 26px; font-weight: 600; color: var(--cyan-soft); border-bottom: 1px solid var(--cyan); padding-bottom: 3px; }
.contact-direct:hover { color: var(--cyan); }

.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 20px; padding: clamp(22px, 3vw, 38px); border: 1px solid var(--line); border-radius: 22px; background: rgba(11, 23, 27, 0.7); backdrop-filter: blur(6px); }
.field { display: flex; flex-direction: column; gap: 8px; }
.field-wide { grid-column: 1 / -1; }
.field label { font: 500 0.72rem/1 "IBM Plex Mono", monospace; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.field .optional { text-transform: none; letter-spacing: 0; opacity: 0.7; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; color: var(--ink); background: rgba(5, 13, 16, 0.8);
  border: 1px solid var(--line); border-radius: 12px; font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; min-height: 110px; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--cyan) 50%), linear-gradient(135deg, var(--cyan) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px; background-repeat: no-repeat; }
.field select:invalid { color: #6f8686; }
.field select option { color: #f2f5f1; background: #0b171b; }
.field input::placeholder, .field textarea::placeholder { color: #5f7676; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(34, 211, 197, 0.18); }
.field [aria-invalid="true"] { border-color: #ff7a59; }
.field-error { color: #ff9d85; font-size: 0.8rem; }
.field-error:empty { display: none; }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.form-actions .button { border: 0; cursor: pointer; font-family: inherit; }
.form-note { font-size: 0.82rem; color: var(--muted); }

@media (max-width: 900px) {
  .contact-grid, .contact-form { grid-template-columns: 1fr; }
}

/* ── Chat flotante de WhatsApp ────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.chat { position: fixed; right: clamp(14px, 3vw, 28px); bottom: clamp(14px, 3vw, 28px); z-index: 150; display: flex; flex-direction: column; align-items: flex-end; gap: 14px; }

.chat-fab {
  position: relative; display: flex; align-items: center; gap: 0; height: 60px; min-width: 60px; padding: 0 16px;
  border: 0; border-radius: 999px; cursor: pointer; color: #fff; background: #25d366; font: 700 0.95rem "Archivo", sans-serif;
  box-shadow: 0 10px 30px -6px rgba(37, 211, 102, 0.55); transition: transform 0.25s, gap 0.3s;
}
.chat-fab:hover { transform: translateY(-3px); }
.chat-fab::after { content: ""; position: absolute; inset: 0; border-radius: inherit; border: 2px solid #25d366; animation: chat-pulse 2.4s ease-out infinite; pointer-events: none; }
.chat.is-open .chat-fab::after { animation: none; opacity: 0; }
@keyframes chat-pulse { 0% { transform: scale(1); opacity: 0.7; } 100% { transform: scale(1.5); opacity: 0; } }
.chat-fab-label { max-width: 0; overflow: hidden; white-space: nowrap; opacity: 0; transition: max-width 0.4s, opacity 0.3s; }
.chat.is-teased:not(.is-open) .chat-fab, .chat-fab:hover { gap: 10px; }
.chat.is-teased:not(.is-open) .chat-fab-label, .chat-fab:hover .chat-fab-label { max-width: 140px; opacity: 1; }

.chat-panel {
  width: min(360px, calc(100vw - 28px)); overflow: hidden; border: 1px solid var(--line); border-radius: 22px;
  background: #0b171b; box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.8); transform-origin: bottom right; animation: chat-in 0.3s ease;
}
.chat-panel[hidden] { display: none; }
@keyframes chat-in { from { opacity: 0; transform: translateY(14px) scale(0.96); } }

.chat-head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; background: linear-gradient(135deg, #0f3a3a, #0b171b); border-bottom: 1px solid var(--line); }
.chat-head div { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.chat-head strong { font-size: 0.95rem; }
.chat-head span { display: flex; align-items: center; gap: 6px; font-size: 0.75rem; color: var(--muted); }
.chat-head i { width: 8px; height: 8px; border-radius: 50%; background: #25d366; }
.chat-close { width: 36px; height: 36px; border: 0; border-radius: 50%; background: rgba(255, 255, 255, 0.06); color: var(--ink); font-size: 1.4rem; line-height: 1; cursor: pointer; }
.chat-close:hover { background: rgba(255, 255, 255, 0.14); }

.chat-body { padding: 20px 18px 8px; display: flex; flex-direction: column; gap: 14px; }
.chat-bubble { align-self: flex-start; max-width: 85%; padding: 12px 15px; border-radius: 4px 16px 16px 16px; background: rgba(255, 255, 255, 0.08); font-size: 0.93rem; line-height: 1.45; }
.chat-quick { display: flex; flex-wrap: wrap; gap: 8px; }
.chat-quick button { padding: 9px 14px; border: 1px solid rgba(34, 211, 197, 0.45); border-radius: 999px; background: transparent; color: var(--cyan-soft); font: 600 0.85rem "Archivo", sans-serif; cursor: pointer; transition: background 0.2s, color 0.2s; }
.chat-quick button:hover { background: var(--cyan); color: #021012; }

.chat-form { display: flex; gap: 8px; padding: 12px 14px 16px; }
.chat-form input { flex: 1; min-width: 0; padding: 13px 16px; color: var(--ink); background: rgba(5, 13, 16, 0.9); border: 1px solid var(--line); border-radius: 999px; font-size: 0.95rem; }
.chat-form input:focus { outline: none; border-color: var(--cyan); }
.chat-form button { width: 46px; height: 46px; flex: none; border: 0; border-radius: 50%; background: #25d366; color: #fff; cursor: pointer; display: grid; place-items: center; }
.chat-form button:hover { filter: brightness(1.1); }

@media (prefers-reduced-motion: reduce) { .chat-fab::after, .chat-panel { animation: none; } }

/* Pestañas y mensaje rápido */
.chat-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 14px 14px 0; padding: 5px; border-radius: 14px; background: rgba(255, 255, 255, 0.05); }
.chat-tabs button { padding: 10px 6px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); font: 700 0.82rem "Archivo", sans-serif; cursor: pointer; transition: background 0.2s, color 0.2s; }
.chat-tabs button.is-active { background: #f2f5f1; color: #0b171b; }
.chat-pane[hidden] { display: none; }

.quick-form { display: flex; flex-direction: column; gap: 10px; padding: 16px 14px 14px; }
.quick-intro { font-size: 0.88rem; line-height: 1.45; color: #c3d2d1; margin-bottom: 2px; }
.quick-form input:not(.hp), .quick-form textarea { width: 100%; padding: 13px 15px; color: var(--ink); background: rgba(5, 13, 16, 0.9); border: 1px solid var(--line); border-radius: 12px; font: inherit; font-size: 0.92rem; }
.quick-form textarea { resize: none; min-height: 84px; }
.quick-form input::placeholder, .quick-form textarea::placeholder { color: #5f7676; }
.quick-form input:focus, .quick-form textarea:focus { outline: none; border-color: var(--cyan); }
.quick-form [aria-invalid="true"] { border-color: #ff7a59; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.quick-status { min-height: 0; font-size: 0.82rem; color: var(--muted); }
.quick-status:empty { display: none; }
.quick-status.is-error { color: #ff9d85; }
.quick-submit { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 14px; border: 0; border-radius: 12px; background: var(--cyan); color: #021012; font: 700 0.95rem "Archivo", sans-serif; cursor: pointer; transition: filter 0.2s; }
.quick-submit:hover:not(:disabled) { filter: brightness(1.08); }
.quick-submit:disabled { opacity: 0.6; cursor: progress; }
.quick-note { text-align: center; font-size: 0.74rem; color: var(--muted); }

.quick-done { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 36px 24px 32px; text-align: center; }
.quick-done[hidden] { display: none; }
.quick-done-icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: rgba(34, 211, 197, 0.15); color: var(--cyan); font-size: 1.6rem; }
.quick-done h3 { font-size: 1.2rem; }
.quick-done p { font-size: 0.9rem; color: var(--muted); line-height: 1.5; }
.quick-again { margin-top: 8px; padding: 10px 18px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink); font: 600 0.85rem "Archivo", sans-serif; cursor: pointer; }
.quick-again:hover { border-color: var(--cyan); }
.quick-form[hidden] { display: none; }

/* Celular: degradé bajo el texto para que se lea sobre el modelo y sin teaser del chat tapando la animación */
@media (max-width: 900px) {
  .chapters::before {
    content: ""; position: absolute; inset: 0 0 auto 0; height: 46%;
    background: linear-gradient(180deg, rgba(5, 13, 16, 0.92) 0%, rgba(5, 13, 16, 0.75) 55%, transparent 100%);
    pointer-events: none;
  }
  .chat-fab-label { display: none; }
  .chat-fab { min-width: 56px; height: 56px; padding: 0 14px; }
  .chat.is-teased:not(.is-open) .chat-fab { gap: 0; }
}

/* Etiquetas laterales (celular: el compresor va vertical y los nombres salen a izquierda y derecha) */
.part-label[data-side="left"], .part-label[data-side="right"] { padding: 0; margin: -0.5em 0 0; }
.part-label[data-side="left"] { padding-right: 36px; text-align: right; }
.part-label[data-side="right"] { padding-left: 36px; }
.part-label[data-side="left"]::before, .part-label[data-side="right"]::before { top: 50%; bottom: auto; width: 30px; height: 1px; transform: none; }
.part-label[data-side="right"]::before { left: 0; right: auto; }
.part-label[data-side="left"]::before { right: 0; left: auto; }
.part-label[data-side="left"]::after, .part-label[data-side="right"]::after { top: 50%; bottom: auto; transform: translateY(-50%); }
.part-label[data-side="right"]::after { left: -3px; right: auto; }
.part-label[data-side="left"]::after { right: -3px; left: auto; }
@media (max-width: 900px) {
  .part-label { font-size: 0.6rem; letter-spacing: 0.06em; text-shadow: 0 0 8px #050d10, 0 0 3px #050d10; }
}
@media (max-width: 900px) {
  .part-label[data-side="left"], .part-label[data-side="right"] { white-space: normal; width: 126px; line-height: 1.25; }
}