/* Open KX — sistema de diseño sobrio (claro por defecto, oscuro opcional).
   Se carga después de style.css: define los tokens, quita degradados, brillos y
   sombras de color, y unifica botones, tarjetas y navegación. */

:root, :root[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f7f7f8;
  --surface-2: #efeff2;
  --line: rgba(15, 15, 20, 0.1);
  --text: #0f0f14;
  --text-2: #4a4b55;
  --muted: #787a86;
  --brand: #4f3fd0;
  --brand-light: #4f3fd0;
  --nav-bg: rgba(255, 255, 255, 0.82);
  --btn-solid-bg: #0f0f14;
  --btn-solid-fg: #ffffff;
  --card-shadow: 0 1px 2px rgba(15, 15, 20, 0.04);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e0f12;
  --surface: #16181d;
  --surface-2: #1e2128;
  --line: rgba(255, 255, 255, 0.1);
  --text: #f3f3f5;
  --text-2: #b3b5bf;
  --muted: #868994;
  --brand: #8b7df0;
  --brand-light: #a79cf4;
  --nav-bg: rgba(14, 15, 18, 0.82);
  --btn-solid-bg: #f3f3f5;
  --btn-solid-fg: #0e0f12;
  --card-shadow: none;
}

/* Las maquetas de producto (móvil, portátil, escenas animadas) representan la app
   en oscuro: conservan su paleta en ambos temas. */
.phone, .dm-lid, .dm-vid, .hw, .xp, .shop, .demo-side, .ck {
  --bg: #0e0f12; --surface: #16181d; --surface-2: #1e2128;
  --line: rgba(255, 255, 255, 0.1); --text: #f3f3f5; --text-2: #b3b5bf; --muted: #868994;
  --brand: #8b7df0; --brand-light: #a79cf4;
  color: #f3f3f5;
}

body { background: var(--bg); color: var(--text); }
::selection { background: var(--brand); color: #fff; }

/* ---------- Tipografía: más aire, menos peso ---------- */
h1, h2, h3 { font-weight: 600; }
h1 { letter-spacing: -0.05em; }
.violet, .hero .line.two { color: var(--brand-light); }

/* ---------- Botones ---------- */
.btn { box-shadow: none; transition: background 0.18s, border-color 0.18s, transform 0.18s var(--ease); }
.btn-solid { background: var(--btn-solid-bg); color: var(--btn-solid-fg); }
.btn-solid:hover { background: var(--btn-solid-bg); opacity: 0.86; }
.btn-brand { background: var(--btn-solid-bg); color: var(--btn-solid-fg); box-shadow: none; }
.btn-brand:hover { background: var(--btn-solid-bg); opacity: 0.86; }
.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--muted); background: var(--surface); }

/* ---------- Navegación ---------- */
.nav { background: var(--nav-bg); backdrop-filter: saturate(1.4) blur(16px); }
.nav-login { color: var(--text-2); }
.nav-login:hover { color: var(--text); }
.lang { border-color: var(--line); }
.lang a { color: var(--muted); }
.theme-toggle { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--text-2); cursor: pointer; transition: background 0.18s, color 0.18s; }
.theme-toggle:hover { background: var(--surface); color: var(--text); }
.theme-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
/* El icono muestra el tema al que se cambia: luna en claro, sol en oscuro */
.theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: block; }

/* ---------- Fondos planos: sin degradados ni luces ---------- */
.hero::before, .final::before { display: none; }
.tinted, .eco-section, .scope, .dm-section { background: var(--bg); }
.tinted { background: var(--surface); }
.rule { border-top-color: var(--line); }

/* ---------- Tarjetas ---------- */
.quiz, .perk, .eco, .demo-box { box-shadow: var(--card-shadow); }
.perk, .perk:nth-child(1) { background: var(--surface); border-color: var(--line); }
.stat b, .path .go { color: var(--text); }

/* Ecosistema: tarjetas planas, de color neutro y con un único acento */
.eco, .card-org, .card-merch, .card-people {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--line); box-shadow: none;
}
.eco::after { display: none; }
.eco h3 { color: var(--text); font-weight: 600; }
.eco p { color: var(--text-2); }
.eco:hover { transform: translateY(-2px); box-shadow: none; border-color: var(--muted); }
.eco-chips li { background: transparent; border: 1px solid var(--line); color: var(--text-2); backdrop-filter: none; }
.eco-cta, .card-merch .eco-cta, .card-people .eco-cta { background: var(--btn-solid-bg); color: var(--btn-solid-fg); }
.eco-art { z-index: 0; color: var(--text); opacity: 1; }
.eco-art * { fill: var(--surface-2) !important; stroke: none !important; opacity: 1 !important; }
.eco-art *:nth-last-child(-n+3) { fill: var(--brand) !important; }
.eco:hover .eco-art { transform: none; }

/* ---------- Maquetas: sin brillos ni sombras de color ---------- */
.phone, .phone-stage .phone { box-shadow: 0 0 0 1px var(--line); }
.ps-wheel .wheel-svg, .ps-wcard, .ps-play, .res-btn, .reel, .sticker, .dm-kpi, .cmp .you, .cmp2 .them { box-shadow: none !important; filter: none; }
.phone-screen::before { display: none; }
.hw, .xp, .xp-merch, .shop, .dm-vid { background: #14161b; box-shadow: none; border: 1px solid var(--line); }
.hw::before, .xp::before, .shop::before { display: none; }
.dm-lid { background: #1b1e25; box-shadow: none; }
.dm-base { background: #2a2d36; box-shadow: none; }
.dm-kpi { background: #1b1e25; border-color: var(--line); }
.dm-bar u, .dm-step .bar u, .dm-prog u, .meter u, .ev u, .xp-bar u, .hw-bar u, .ph-prog u { background: var(--brand); }
.demo-side { background: #14161b; }
dialog.demo::backdrop { background: rgba(10, 10, 14, 0.55); backdrop-filter: blur(4px); }
.demo-form input:focus, .demo-form textarea:focus { box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 22%, transparent); }

/* ---------- Pasos y secciones de contenido ---------- */
.dm-step, .step, .path, .stat { border-color: var(--line); }
.quiz-opt { background: var(--bg); }

/* ---------- Pie ---------- */
footer, .foot { background: var(--bg); border-top: 1px solid var(--line); }

/* ---------- Movimiento reducido ---------- */
@media (prefers-reduced-motion: reduce) { * { transition-duration: 0.01ms !important; } }

/* Logotipo (blanco): en el tema claro se muestra en negro */
:root:not([data-theme="dark"]) .nav-brand img, :root:not([data-theme="dark"]) footer img { filter: brightness(0); }

/* Escala tipográfica más contenida */
h1:not(.punch-h1) { font-size: clamp(2.5rem, 6vw, 4.75rem); line-height: 1.02; }
h2 { font-size: clamp(1.9rem, 3.8vw, 3.1rem); line-height: 1.08; letter-spacing: -0.04em; }
.h2-md, .how-head h2 { font-size: clamp(1.9rem, 3.8vw, 3.1rem); }
.lead { font-size: clamp(1.05rem, 1.4vw, 1.25rem); }
.eco h3 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.tags li, .tags-lg li { background: transparent; border: 1px solid var(--line); color: var(--text-2); }
.tags-lg li { color: var(--text); }

/* Pasos del demo (columna izquierda) */
.dm-step:hover { background: var(--surface); }
.dm-step.is-active { background: var(--surface); border-color: var(--line); }
.dm-step.is-active b { color: var(--text); }
.dm-step.is-active .bar { background: var(--surface-2); }
.dm-step .bar u { background: var(--brand); }

.mv-callout { background: var(--surface); border-left-color: var(--brand); color: var(--text); }
.mv-callout b { color: var(--brand); }
.back-home:hover { color: var(--text); }

.punch-h1 .punch { color: var(--text); }
.punch-h1 .punch span:last-child { color: var(--brand); }
.free b { color: var(--text); }
.free::before { border-color: var(--ok); }

/* Barra superior en móvil */
.nav-brand { flex: none; }
@media (max-width: 520px) {
  .nav .wrap { gap: 8px; }
  .nav-cta { min-width: 0; gap: 6px; align-items: center; }
  .theme-toggle { width: 32px; height: 32px; }
  .cta-mob { padding: 0 14px; font-size: 0.82rem; white-space: nowrap; }
}
@media (max-width: 520px) {
  .nav img { height: 17px; }
  .nav-plus { font-size: 0.95rem; }
  .cta-mob { padding: 0 12px; font-size: 0.78rem; height: 36px; }
  .theme-toggle { width: 30px; height: 30px; }
}

/* Hero de Empresas: puntos clave y sección LMS */
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 28px; list-style: none; margin: 0; padding: 0; color: var(--text-2); font-size: 0.98rem; }
.hero-points li { display: inline-flex; align-items: center; gap: 8px; }
.hero-points svg { width: 18px; height: 18px; fill: none; stroke: var(--brand); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.lms h2 { max-width: 22ch; }
.tags-one { flex-wrap: nowrap; gap: 6px; }
.tags-one li, .tags-lg.tags-one li { font-size: clamp(0.78rem, 1.5vw, 1.05rem); padding: 8px clamp(10px, 1.4vw, 18px); white-space: nowrap; }
.statement h2 { max-width: 24ch; }

/* KX Play en Empresas: ciclo de experiencia */
.kxp { text-align: center; }
.kxp-head { display: grid; gap: 18px; justify-items: center; }
.kxp-head h2 { max-width: 20ch; }
.kxp-head .lead { max-width: 40ch; }
.kxp-kicker { margin: 0; padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--brand); font-weight: 600; font-size: 0.9rem; letter-spacing: 0.02em; }
.kxp-loop { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: k; position: relative; }
.kxp-loop li { counter-increment: k; position: relative; display: grid; gap: 10px; justify-items: center; align-content: start; padding: 28px 16px 24px; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); text-align: center; }
.kxp-loop li::before { content: "0" counter(k); position: absolute; top: 12px; left: 16px; font-size: 0.78rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.kxp-loop li + li::after { content: ""; position: absolute; left: -13px; top: 50%; width: 14px; height: 1px; background: var(--line); }
.kxp-ic { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: var(--bg); border: 1px solid var(--line); }
.kxp-ic svg { width: 26px; height: 26px; fill: none; stroke: var(--brand); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.kxp-loop b { font-size: 1.05rem; font-weight: 600; letter-spacing: -0.02em; color: var(--text); }
.kxp-loop p { font-size: 0.9rem; line-height: 1.4; color: var(--text-2); max-width: 20ch; }
.kxp-result { margin: 0 auto; max-width: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 22px; font-size: clamp(1.5rem, 3.4vw, 2.6rem); font-weight: 600; letter-spacing: -0.04em; line-height: 1.15; color: var(--text); }
.kxp-result .acc { color: var(--brand); }
@media (max-width: 900px) {
  .kxp-loop { grid-template-columns: 1fr; }
  .kxp-loop li { grid-template-columns: 52px 1fr; justify-items: start; text-align: left; column-gap: 16px; padding: 18px 18px 18px 52px; align-items: center; }
  .kxp-loop li::before { top: 50%; left: 16px; translate: 0 -50%; }
  .kxp-loop li + li::after { display: none; }
  .kxp-ic { grid-row: span 2; }
  .kxp-loop p { max-width: none; }
}

/* Comparativa Open KX vs LMS tradicionales */
.cmpx-head { display: grid; gap: 16px; }
.cmpx-head h2 { max-width: 20ch; }
.cmpx-wrap { border: 1px solid var(--line); border-radius: 20px; overflow: hidden; }
.cmpx-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 1rem; }
.cmpx-table th, .cmpx-table td { padding: 18px 24px; text-align: left; vertical-align: middle; border-bottom: 1px solid var(--line); line-height: 1.4; }
.cmpx-table tbody tr:last-child > * { border-bottom: 0; }
.cmpx-table thead th { font-size: 0.82rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); background: var(--surface); }
.cmpx-table tbody th { width: 17%; font-weight: 600; color: var(--text); letter-spacing: -0.01em; }
.cmpx-table td { width: 34%; }
.cmpx-no { color: var(--muted); }
.cmpx-table .cmpx-yes { background: color-mix(in srgb, var(--brand) 7%, var(--bg)); color: var(--text); font-weight: 500; border-left: 1px solid color-mix(in srgb, var(--brand) 35%, var(--line)); }
.cmpx-table thead .cmpx-yes { color: var(--brand); background: color-mix(in srgb, var(--brand) 11%, var(--bg)); }
.cmpx-yes > span { display: inline-flex; align-items: flex-start; gap: 10px; }
.cmpx-yes .ck-ic { flex: none; width: 18px; height: 18px; margin-top: 2px; fill: none; stroke: var(--brand); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.cmpx-table thead .cmpx-yes > span { display: inline; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.cmpx-note { margin: 0; font-size: 0.85rem; color: var(--muted); max-width: none; }
.cmpx-cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; padding: 28px clamp(20px, 3vw, 36px); border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.cmpx-cta p { margin: 0; font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 600; letter-spacing: -0.03em; color: var(--text); max-width: 30ch; }
@media (max-width: 760px) {
  .cmpx-table thead { display: none; }
  .cmpx-table, .cmpx-table tbody, .cmpx-table tr, .cmpx-table th, .cmpx-table td { display: block; width: auto !important; }
  .cmpx-table tbody tr { border-bottom: 1px solid var(--line); padding: 16px 0 6px; }
  .cmpx-table tbody tr:last-child { border-bottom: 0; }
  .cmpx-table tbody th { padding: 0 18px 8px; border: 0; font-size: 1.05rem; }
  .cmpx-table td { border: 0; padding: 8px 18px; }
  .cmpx-table td::before { content: attr(data-l); display: block; font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; font-weight: 600; }
  .cmpx-table .cmpx-yes { border-left: 0; margin-top: 4px; }
  .cmpx-table .cmpx-yes::before { color: var(--brand); }
  .cmpx-cta { flex-direction: column; align-items: flex-start; }
}

/* Tarjetas del ecosistema: fondo sólido y sobrio (sin degradados) */
.eco.card-people, .eco.card-org { background: var(--brand); border-color: var(--brand); color: #fff; }
.eco.card-merch { background: #15161b; border-color: #15161b; color: #fff; }
:root[data-theme="dark"] .eco.card-merch { background: var(--surface-2); border-color: var(--line); }
:root[data-theme="dark"] .eco.card-people, :root[data-theme="dark"] .eco.card-org { background: #4a3cc4; border-color: #4a3cc4; }
.eco.card-people h3, .eco.card-merch h3, .eco.card-org h3 { color: #fff; }
.eco.card-people p, .eco.card-merch p, .eco.card-org p { color: rgba(255, 255, 255, 0.82); }
.eco.card-people .eco-chips li, .eco.card-merch .eco-chips li, .eco.card-org .eco-chips li { border-color: rgba(255, 255, 255, 0.28); color: rgba(255, 255, 255, 0.85); }
.eco.card-people .eco-cta, .eco.card-merch .eco-cta, .eco.card-org .eco-cta { background: #fff; color: #0f0f14; }
.eco.card-people .eco-art *, .eco.card-merch .eco-art *, .eco.card-org .eco-art * { fill: rgba(255, 255, 255, 0.14) !important; }
.eco.card-people .eco-art *:nth-last-child(-n+3), .eco.card-merch .eco-art *:nth-last-child(-n+3), .eco.card-org .eco-art *:nth-last-child(-n+3) { fill: rgba(255, 255, 255, 0.9) !important; }
.eco.card-people:hover, .eco.card-merch:hover, .eco.card-org:hover { border-color: transparent; transform: translateY(-2px); }

/* Comercios (hero): el cupón de canje usa las mismas clases que la escena de Personas; se restauran sus medidas */
.shop .tk-top { font-size: 2.7cqw; padding-top: 0; align-items: baseline; }
.shop .tk-prize { gap: 0.4cqw; }
.shop .tk-prize span { font-size: 8cqw; }
.shop .tk-prize strong { font-size: 4.4cqw; letter-spacing: -0.03em; }
.shop .tk-prize small { font-size: 2.6cqw; }
.shop .ticket { right: 6cqw; }
.shop .st-visit { top: 26cqw; right: 8cqw; z-index: 6; }

/* Personas: más aire entre "Paga." y la frase de apoyo */
.hero-home .hero-sub { margin-top: clamp(22px, 3.6vw, 52px); }

/* Tabla comparativa en oscuro: columna Open KX con más contraste */
:root[data-theme="dark"] .cmpx-table .cmpx-yes { background: color-mix(in srgb, var(--brand) 22%, var(--bg)); color: #fff; font-weight: 600; border-left-color: var(--brand); }
:root[data-theme="dark"] .cmpx-table thead .cmpx-yes { background: var(--brand); color: #fff; }
:root[data-theme="dark"] .cmpx-yes .ck-ic { stroke: #fff; }
:root[data-theme="dark"] .cmpx-no { color: var(--muted); }
:root[data-theme="dark"] .cmpx-wrap { border-color: var(--line); }

/* Formulario de demo: campos con los colores del tema */
.demo-form input:not([type=radio]):not([type=checkbox]), .demo-form textarea { background: var(--bg); color: var(--text); border-color: var(--line); }
.demo-form input::placeholder, .demo-form textarea::placeholder { color: var(--muted); }
.demo-form input:focus, .demo-form textarea:focus { border-color: var(--brand); }
.size span { background: var(--bg); border-color: var(--line); color: var(--text-2); }
.size input:checked + span { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 12%, var(--bg)); color: var(--text); }
.demo-msg { color: #c62828; }
:root[data-theme="dark"] .demo-msg { color: #ff8a80; }
.demo-ok .ok-mark { color: #fff; }

/* Formulario de demo: desafíos */
.chals { display: grid; gap: 8px; min-width: 0; }
.chals legend { font-size: 1rem; font-weight: 600; color: var(--text); padding: 0; margin: 0; }
.chals-hint { margin: 0; max-width: none; font-size: 0.85rem; color: var(--muted); }
.chals-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 4px; }
.chal { position: relative; display: block !important; cursor: pointer; }
.chal input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.chal span { display: flex; align-items: center; height: 100%; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); color: var(--text-2); font-size: 0.84rem; line-height: 1.3; transition: border-color 0.18s, background 0.18s; }
.chal:hover span { border-color: var(--muted); }
.chal input:checked + span { border-color: var(--brand); background: color-mix(in srgb, var(--brand) 12%, var(--bg)); color: var(--text); font-weight: 500; }
.chal input:focus-visible + span { outline: 2px solid var(--brand); outline-offset: 2px; }
.chal.is-off { cursor: not-allowed; }
.chal.is-off span { opacity: 0.45; }
.chal-other-text { margin-top: 4px; }
@media (max-width: 640px) { .chals-grid { grid-template-columns: 1fr; } }
@media (min-width: 821px) {
  /* El formulario crece: la fila se limita a la altura del cuadro y el formulario hace scroll por dentro */
  .demo-box { grid-template-rows: minmax(0, 1fr); }
  .demo-form { min-height: 0; }
}