/* =========================================================================
   WHITEMOON-LOGISTICA-DEMO — sistema visual
   Dark premium WhiteMoon. Sora autoalojada. Mobile-first.
   Breakpoints: 900px (tablet) y 600px (móvil).
   ========================================================================= */

/* -------------------------------------------------------------------------
   Sora, variable, subset latin + latin-ext, servida desde assets/fonts.
   Un solo fichero cubre los pesos 300-700 (es una fuente variable), así que
   no hay una petición por peso. font-display:swap para no bloquear el
   primer pintado.
   ------------------------------------------------------------------------- */
@font-face {
  font-family: "Sora";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("../fonts/sora-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6,
    U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122,
    U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Sora";
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url("../fonts/sora-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7,
    U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F,
    U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F,
    U+A720-A7FF;
}

:root {
  --bg: #08080d;
  --p: #7c4dff;
  --p2: #9d70ff;
  --g: #00d4aa;
  --text: #f0f0f5;
  --muted: #8888a0;

  /* Superficies derivadas del fondo, no colores nuevos. */
  --surface: #0e0e16;
  --surface-2: #14141f;
  --line: #22222f;
  --line-soft: #1a1a26;

  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1180px;
  --gutter: 24px;

  --shadow: 0 18px 50px rgba(0, 0, 0, .55);
  --ring: 0 0 0 3px rgba(157, 112, 255, .45);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Sora", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 { line-height: 1.18; margin: 0 0 .5em; font-weight: 600; letter-spacing: -.02em; }
h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 4.2vw, 2.5rem); }
h3 { font-size: 1.18rem; }
p  { margin: 0 0 1rem; }
a  { color: var(--p2); }

/* Foco visible SIEMPRE, en todo lo enfocable. Es el requisito de
   accesibilidad que más fácil se rompe al maquetar en oscuro. */
:focus-visible {
  outline: 3px solid var(--p2);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--p); color: #fff; padding: 12px 18px;
  border-radius: 0 0 var(--radius-sm) 0; font-weight: 600;
}
.skip:focus { left: 0; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

section { padding: clamp(56px, 9vw, 104px) 0; position: relative; }
/* La cabecera es sticky: sin este margen, saltar a una sección por el menú
   deja su primera línea escondida detrás de la barra. */
section[id] { scroll-margin-top: 80px; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--g); margin: 0 0 14px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--g); display: block; }

.lead { color: var(--muted); font-size: 1.06rem; max-width: 62ch; }

/* ---------------------------------------------------------------- botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 26px; border-radius: 999px; border: 1px solid transparent;
  font: inherit; font-weight: 600; font-size: .98rem; text-decoration: none;
  cursor: pointer; transition: transform .18s ease, background .18s ease, border-color .18s ease;
  min-height: 48px;
}
.btn:hover { transform: translateY(-2px); }
.btn-1 { background: var(--p); color: #fff; }
.btn-1:hover { background: var(--p2); }
.btn-2 { background: transparent; color: var(--text); border-color: var(--line); }
.btn-2:hover { border-color: var(--p2); }
.btn-3 { background: var(--g); color: #05231d; }
.btn-3:hover { background: #2ae3c0; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* --------------------------------------------------------------------- nav */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(8, 8, 13, .82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-in { display: flex; align-items: center; gap: 18px; height: 68px; }
.brand {
  display: flex; align-items: center; gap: 10px; font-weight: 700;
  letter-spacing: -.02em; color: var(--text); text-decoration: none; font-size: 1.05rem;
}
.brand .dot { width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg, var(--p), var(--g)); flex: none; }
.brand small {
  display: block; font-size: .68rem; font-weight: 500; color: var(--muted);
  letter-spacing: .1em; text-transform: uppercase; line-height: 1;
}
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: .93rem; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav .btn { padding: 10px 20px; min-height: 42px; }

/* -------------------------------------------------------------------- hero */
.hero { padding: 0; min-height: 88vh; display: flex; align-items: center; position: relative; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(8,8,13,.55) 0%, rgba(8,8,13,.80) 55%, var(--bg) 100%),
    linear-gradient(100deg, rgba(8,8,13,.94) 0%, rgba(8,8,13,.62) 48%, rgba(124,77,255,.16) 100%);
}
.hero-in { position: relative; z-index: 1; padding: clamp(96px, 14vw, 150px) 0 clamp(64px, 9vw, 96px); }
.hero h1 { max-width: 17ch; }
.hero h1 .hl {
  background: linear-gradient(100deg, var(--p2), var(--g));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { font-size: clamp(1.02rem, 2.2vw, 1.18rem); max-width: 56ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 34px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0; list-style: none; }
.chips li {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); background: rgba(14,14,22,.7);
  border-radius: 999px; padding: 8px 16px; font-size: .86rem; color: var(--muted);
}
.chips li b { color: var(--text); font-weight: 600; }

/* --------------------------------------------------------------- servicios */
.grid-serv {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  margin-top: 42px;
}
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  transition: border-color .2s ease, transform .2s ease;
}
.card:hover { border-color: #33334a; transform: translateY(-3px); }
.card figure { margin: 0; aspect-ratio: 4 / 3; overflow: hidden; background: var(--surface-2); }
.card figure img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 22px 22px 26px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .95rem; margin: 0; }
.card .tag {
  display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--g); margin-bottom: 10px;
}

/* ------------------------------------------------------------ calculadoras */
.calc { background: linear-gradient(180deg, var(--bg), #0b0b13 40%, var(--bg)); }
.calc-head { text-align: center; max-width: 760px; margin: 0 auto 36px; }
.calc-head .lead { margin-left: auto; margin-right: auto; }

/* Pestañas. En móvil el tablist rueda en horizontal en vez de partirse en
   tres líneas: tres pestañas apiladas ocupan media pantalla y esconden el
   formulario, que es lo que la gente ha venido a usar. */
.tabs {
  display: flex; gap: 8px; margin: 0 0 24px; padding: 6px;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 999px; overflow-x: auto; scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 1 1 auto; white-space: nowrap; min-height: 48px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; border: 1px solid transparent;
  background: transparent; color: var(--muted);
  font: inherit; font-size: .95rem; font-weight: 600; cursor: pointer;
  transition: background .18s ease, color .18s ease;
}
.tab:hover { color: var(--text); }
.tab .n {
  display: inline-grid; place-items: center; width: 22px; height: 22px; flex: none;
  border-radius: 50%; background: var(--surface-2); color: var(--p2);
  font-size: .72rem; font-weight: 700;
}
.tab[aria-selected="true"] { background: var(--p); color: #fff; }
.tab[aria-selected="true"] .n { background: rgba(255,255,255,.18); color: #fff; }

.calc-grid { display: grid; gap: 24px; grid-template-columns: 1.15fr .85fr; align-items: start; }

.panel {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
}
.panel-h { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.panel-h h3 { margin: 0; }
.panel-h .step { font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.panel-sub { color: var(--muted); font-size: .9rem; margin: 0 0 20px; }

fieldset { border: 0; padding: 0; margin: 0 0 24px; }
fieldset:last-of-type { margin-bottom: 0; }
legend {
  padding: 0; margin: 0 0 14px; font-size: .78rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--p2);
}

.row { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.row-3 { grid-template-columns: repeat(3, 1fr); }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }
.field label { font-size: .88rem; font-weight: 500; color: var(--text); }
/* La pista va también fuera de un .field (p. ej. la nota del peso
   volumétrico bajo el grupo de medidas), así que la clase es autónoma. */
.hint { font-size: .78rem; color: var(--muted); margin: 0; }

input[type="text"], input[type="number"], input[type="tel"], select, textarea {
  width: 100%; padding: 12px 14px; min-height: 48px;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font: inherit; font-size: .96rem;
}
input::placeholder { color: #5c5c74; }
input:focus, select:focus, textarea:focus { border-color: var(--p2); outline: none; box-shadow: var(--ring); }
input[aria-invalid="true"] { border-color: #ff6b6b; }

.checks { display: grid; gap: 10px; }
.check {
  display: flex; align-items: flex-start; gap: 12px; cursor: pointer;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 14px; background: var(--surface-2);
  transition: border-color .18s ease;
}
.check:hover { border-color: #33334a; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--p); flex: none; }
.check span { font-size: .92rem; }
.check small { display: block; color: var(--muted); font-size: .8rem; }

.calc-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

.error-box {
  border: 1px solid #ff6b6b; border-radius: var(--radius-sm);
  background: rgba(255, 107, 107, .08); color: #ffc9c9;
  padding: 14px 18px; margin: 20px 0 0; font-size: .9rem;
}
.error-box ul { margin: 8px 0 0; padding-left: 20px; }
.error-box strong { color: #fff; }

/* Resultado */
.result { position: sticky; top: 92px; }
.result-empty { color: var(--muted); font-size: .95rem; }
.total-box {
  border: 1px solid rgba(0, 212, 170, .35);
  background: linear-gradient(160deg, rgba(0,212,170,.10), rgba(124,77,255,.08));
  border-radius: var(--radius); padding: 20px; margin-bottom: 18px;
}
.total-box .k { font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin: 0; }
.total-box .v {
  font-size: clamp(1.7rem, 5vw, 2.5rem); font-weight: 700;
  letter-spacing: -.03em; line-height: 1.1; margin: 4px 0 0;
}
.total-box .v small { font-size: .95rem; font-weight: 500; color: var(--muted); letter-spacing: 0; }

.desglose { width: 100%; border-collapse: collapse; font-size: .92rem; }
.desglose caption {
  text-align: left; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--p2); font-weight: 600; padding-bottom: 10px;
}
.desglose th, .desglose td { padding: 9px 0; border-bottom: 1px solid var(--line-soft); text-align: left; vertical-align: top; }
.desglose th { font-weight: 400; color: var(--muted); padding-right: 12px; }
.desglose td { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.desglose tr.sum th, .desglose tr.sum td { font-weight: 600; color: var(--text); border-bottom-color: var(--line); }
.desglose tr.grand th, .desglose tr.grand td { font-weight: 700; font-size: 1.05rem; border-bottom: 0; padding-top: 14px; }
.desglose tr.grand td { color: var(--g); }

.aviso {
  border-left: 3px solid var(--p); background: var(--surface-2);
  padding: 12px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: .86rem; color: var(--muted); margin: 18px 0 0;
}
.aviso b { color: var(--text); font-weight: 600; }
.aviso-g { border-left-color: var(--g); }

/* Lista de conceptos de la calculadora marítima: nombre en claro, detalle
   en apagado, sin importe — la ausencia de cifra es el mensaje. */
.conceptos-h { margin: 24px 0 4px; font-size: 1rem; font-weight: 600; }
.conceptos-nota { color: var(--muted); font-size: .85rem; margin: 0 0 12px; }
.conceptos { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.conceptos li {
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--surface-2); padding: 12px 14px;
}
.conceptos li b { display: block; font-size: .92rem; font-weight: 600; color: var(--text); }
.conceptos li span { display: block; font-size: .82rem; color: var(--muted); margin-top: 2px; }

/* Formulario de captación dentro del resultado */
.lead-box { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--line); }
.lead-box h4 { margin: 0 0 6px; font-size: 1.05rem; font-weight: 600; }
.lead-box .lead { font-size: .9rem; margin-bottom: 16px; }
.form-msg { margin-top: 14px; font-size: .9rem; }
.form-msg.ok { color: var(--g); }
.form-msg.err { color: #ff8a8a; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .82rem; color: var(--muted); margin: 4px 0 16px; cursor: pointer; }
.consent input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--p); flex: none; }

/* Tabla de tarifa demo */
.tarifa { margin-top: 30px; }
.tarifa summary {
  cursor: pointer; font-weight: 600; font-size: .95rem; padding: 14px 18px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  list-style: none;
}
.tarifa summary::-webkit-details-marker { display: none; }
.tarifa summary::after { content: " +"; color: var(--p2); }
.tarifa[open] summary::after { content: " −"; }
.tarifa-body {
  border: 1px solid var(--line); border-top: 0;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm); padding: 20px; background: var(--surface);
}
.tarifa-body h4 { margin: 22px 0 10px; font-size: .95rem; }
.tarifa-body h4:first-child { margin-top: 0; }
.tabla-scroll { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: .9rem; min-width: 420px; }
table.data th, table.data td { padding: 10px 12px; border-bottom: 1px solid var(--line-soft); text-align: left; }
table.data thead th { color: var(--p2); font-weight: 600; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
table.data td { color: var(--muted); font-variant-numeric: tabular-nums; }
table.data td:first-child { color: var(--text); }

/* ====================================================== agente IA (Hugo)

   El chat reutiliza el sistema de la demo: mismo .panel, mismo .desglose
   para el "de dónde sale cada cifra", mismos colores. Lo único nuevo es la
   conversación y la ficha de métricas. */
.chat-grid { display: grid; gap: 24px; grid-template-columns: 1.15fr .85fr; align-items: start; margin-top: 38px; }

.chat { padding: 0; overflow: hidden; }

.chat-h {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 22px; border-bottom: 1px solid var(--line); background: var(--surface-2);
}
.chat-av {
  width: 42px; height: 42px; border-radius: 50%; flex: none;
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: .95rem;
  background: linear-gradient(135deg, var(--p), var(--g));
}
.chat-h b { display: block; font-size: .98rem; font-weight: 600; }
.chat-h small { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: .8rem; }
.chat-h small::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--g); flex: none; }

/* Altura fija y scroll propio: si el log creciera sin límite, cada respuesta
   empujaría la página entera y el campo de escribir se iría de pantalla. */
.chat-log {
  height: 460px; overflow-y: auto; overscroll-behavior: contain;
  padding: 20px 22px; display: flex; flex-direction: column; gap: 16px;
}

.msg { max-width: 94%; }
.msg-quien {
  display: block; margin-bottom: 5px; font-size: .7rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--muted);
}
.msg-cuerpo { border-radius: var(--radius-sm); padding: 12px 15px; font-size: .94rem; }
.msg-cuerpo p { margin: 0 0 .6em; }
.msg-cuerpo p:last-child { margin-bottom: 0; }
.msg-hugo .msg-cuerpo { background: var(--surface-2); border: 1px solid var(--line); }
.msg-tu { margin-left: auto; }
.msg-tu .msg-quien { text-align: right; }
.msg-tu .msg-cuerpo { background: rgba(124, 77, 255, .16); border: 1px solid rgba(157, 112, 255, .38); }

.puntos { display: flex; gap: 5px; align-items: center; }
.puntos span {
  width: 7px; height: 7px; border-radius: 50%; background: var(--p2);
  animation: hugo-punto 1.1s ease-in-out infinite;
}
.puntos span:nth-child(2) { animation-delay: .15s; }
.puntos span:nth-child(3) { animation-delay: .3s; }
@keyframes hugo-punto { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }

.ok-lead { color: var(--g); margin: 0; }
.err-lead { color: #ff8a8a; margin: 0; }

.chat-ejemplos { display: flex; flex-wrap: wrap; gap: 8px; padding: 14px 22px 0; }
.chat-ejemplos button {
  border: 1px solid var(--line); background: var(--surface-2); color: var(--muted);
  border-radius: 999px; padding: 7px 14px; min-height: 36px;
  font: inherit; font-size: .8rem; cursor: pointer;
  transition: border-color .18s ease, color .18s ease;
}
.chat-ejemplos button:hover { border-color: var(--p2); color: var(--text); }

.chat-form { display: flex; gap: 10px; padding: 16px 22px 8px; }
.chat-form input { flex: 1 1 auto; }
.chat-form .btn { flex: none; padding: 12px 24px; }
.chat-nota { margin: 0; padding: 0 22px 18px; font-size: .76rem; color: var(--muted); }

/* Ficha de métricas. Las cifras vienen calculadas del servidor; aquí solo
   se colocan. */
.metricas-h {
  margin: 0 0 12px; font-size: .76rem; font-weight: 600;
  letter-spacing: .12em; text-transform: uppercase; color: var(--p2);
}
.metricas-grid {
  list-style: none; margin: 0 0 18px; padding: 0;
  display: grid; gap: 10px; grid-template-columns: 1fr 1fr;
}
.metricas-grid li {
  border: 1px solid rgba(0, 212, 170, .25);
  background: linear-gradient(160deg, rgba(0,212,170,.09), rgba(124,77,255,.07));
  border-radius: var(--radius-sm); padding: 12px 14px;
}
.metricas-grid span {
  display: block; font-size: .72rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}
.metricas-grid b {
  display: block; margin-top: 3px; font-size: 1.16rem; font-weight: 700;
  letter-spacing: -.02em; font-variant-numeric: tabular-nums;
}
.metricas-grid b.destaca { color: var(--g); }
.metricas-grid small {
  font-size: .64rem; font-weight: 500; color: var(--muted);
  letter-spacing: .08em; text-transform: uppercase;
}

/* El desglose del chat lleva frases, no importes: sin nowrap y algo más
   pequeño, o se sale de la burbuja. */
.metricas .desglose th, .metricas .desglose td { font-size: .82rem; }
.metricas .desglose td { white-space: normal; }
.metricas .aviso { font-size: .8rem; }

/* Columna lateral: qué hace el agente y con qué fórmulas. */
.formulas { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 16px; }
.formulas li { border-left: 2px solid var(--line); padding-left: 14px; }
.formulas b { display: block; font-size: .92rem; font-weight: 600; }
.formulas code {
  display: block; margin-top: 4px; font-size: .8rem; color: var(--g);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  word-break: break-word;
}
.formulas span { display: block; margin-top: 4px; font-size: .82rem; color: var(--muted); }

/* ---------------------------------------------------------- cómo funciona */
.split { display: grid; gap: 40px; grid-template-columns: 1fr 1fr; align-items: center; }
.split img { border-radius: var(--radius); border: 1px solid var(--line); }
.pasos { list-style: none; margin: 30px 0 0; padding: 0; display: grid; gap: 22px; counter-reset: paso; }
.pasos li { display: grid; grid-template-columns: 44px 1fr; gap: 16px; align-items: start; }
.pasos li::before {
  counter-increment: paso; content: counter(paso, decimal-leading-zero);
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--line); background: var(--surface);
  color: var(--p2); font-weight: 700; font-size: .9rem;
}
.pasos h3 { margin: 0 0 4px; font-size: 1.02rem; }
.pasos p { margin: 0; color: var(--muted); font-size: .93rem; }

/* ------------------------------------------------------------ rutas/zonas */
.zonas-grid { display: grid; gap: 34px; grid-template-columns: 1.05fr .95fr; align-items: start; }
.zonas-grid img { border-radius: var(--radius); border: 1px solid var(--line); }

/* -------------------------------------------------------------------- faq */
.faq-list { margin-top: 34px; display: grid; gap: 12px; max-width: 860px; }
.faq-list details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.faq-list summary {
  cursor: pointer; padding: 18px 20px; font-weight: 600; font-size: 1rem;
  list-style: none; display: flex; justify-content: space-between; gap: 14px; align-items: center;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--p2); font-size: 1.3rem; line-height: 1; flex: none; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list .a { padding: 0 20px 20px; color: var(--muted); font-size: .95rem; }
.faq-list .a p:last-child { margin-bottom: 0; }

/* --------------------------------------------------------------- contacto */
.contacto { background: var(--surface); border-top: 1px solid var(--line); }
.contacto-grid { display: grid; gap: 34px; grid-template-columns: 1.1fr .9fr; align-items: start; }
.canales { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 14px; }
.canales a { display: flex; gap: 14px; align-items: center; text-decoration: none; color: var(--text); }
.canales .ic {
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  display: grid; place-items: center; background: var(--surface-2); border: 1px solid var(--line);
  color: var(--p2); font-weight: 700; font-size: .8rem;
}
.canales small { display: block; color: var(--muted); font-size: .82rem; }

/* ----------------------------------------------------------------- footer */
footer { border-top: 1px solid var(--line-soft); padding: 34px 0; font-size: .86rem; color: var(--muted); }
.foot-in { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------- reveal */
.rv { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.rv.in { opacity: 1; transform: none; }

/* ------------------------------------------------------------ responsive */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .calc-grid, .chat-grid, .split, .zonas-grid, .contacto-grid { grid-template-columns: 1fr; }
  .result { position: static; }
  .split .split-img { order: -1; }
  :root { --gutter: 20px; }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero { min-height: auto; }
  .row, .row-3 { grid-template-columns: 1fr; }
  .panel { padding: 20px 18px; }
  .hero-cta .btn { width: 100%; }
  .brand small { display: none; }
  .desglose { font-size: .88rem; }
  .chat-log { height: 68vh; max-height: 460px; padding: 16px; }
  .chat-h, .chat-ejemplos, .chat-form, .chat-nota { padding-left: 16px; padding-right: 16px; }
  .msg { max-width: 100%; }
  .metricas-grid { grid-template-columns: 1fr; }
  .chat-form { flex-wrap: wrap; }
  .chat-form .btn { width: 100%; }
  .tabs { border-radius: var(--radius); }
  .tab { flex: 0 0 auto; }
}

/* Respeta la preferencia del sistema: sin movimiento, sin scroll suave. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .rv { opacity: 1; transform: none; }
  .btn:hover, .card:hover { transform: none; }
}