/* ==========================================================================
   LineDesk — Sistema de diseño
   Sin dependencias externas: cero requests de terceros = LCP y CLS óptimos,
   que son factores de posicionamiento directos (Core Web Vitals).
   ========================================================================== */

/* --- Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
body { -webkit-font-smoothing: antialiased; }
img, picture, svg, video { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
p, h1, h2, h3, h4, h5, h6 { overflow-wrap: break-word; }

/* --- Tokens --------------------------------------------------------------- */
:root {
  /* Marca: tomados del icono de la aplicación */
  --brand: #ce0e2d;
  --brand-bright: #f01e42;
  --brand-soft: rgba(206, 14, 45, 0.12);
  --brand-line: rgba(206, 14, 45, 0.35);
  --steel: #939598;

  /* Superficies */
  --bg: #08090d;
  --bg-alt: #0d0f15;
  --surface: #121520;
  --surface-2: #171b28;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  /* Texto */
  --text: #f2f4f8;
  --text-muted: #a4abbb;
  --text-dim: #737b8d;

  /* Semántica */
  --ok: #22c55e;
  --warn: #f59e0b;

  /* Tipografía: stack del sistema, se renderiza sin descargar nada */
  --font: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system,
          "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Consolas, monospace;

  /* Ritmo */
  --wrap: 1180px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.5);
  --shadow-brand: 0 16px 44px rgba(206, 14, 45, 0.32);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- Base ----------------------------------------------------------------- */
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 17px;
  overflow-x: hidden;
}

/* Halo de marca detrás del contenido */
body::before {
  content: "";
  position: fixed;
  inset: -30% -10% auto -10%;
  height: 780px;
  background:
    radial-gradient(58% 62% at 18% 0%, rgba(206, 14, 45, 0.20), transparent 68%),
    radial-gradient(48% 55% at 82% 8%, rgba(147, 149, 152, 0.13), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

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

a { color: inherit; text-decoration: none; }

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

:focus-visible {
  outline: 2px solid var(--brand-bright);
  outline-offset: 3px;
  border-radius: 6px;
}

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.wrap-narrow { width: min(100% - 2.5rem, 800px); margin-inline: auto; }

/* Accesibilidad: salto al contenido */
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--brand); color: #fff; padding: 0.75rem 1.25rem; border-radius: 0 0 10px 0;
}
.skip:focus { left: 0; }

/* --- Tipografía ----------------------------------------------------------- */
h1, h2, h3, h4 { line-height: 1.14; font-weight: 700; letter-spacing: -0.025em; }
h1 { font-size: clamp(2.4rem, 6.2vw, 4.15rem); letter-spacing: -0.038em; }
h2 { font-size: clamp(1.85rem, 4vw, 2.85rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.775rem; font-weight: 650; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--brand-bright);
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--brand-line);
  background: var(--brand-soft);
  border-radius: 999px;
  margin-bottom: 1.4rem;
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand-bright); box-shadow: 0 0 10px var(--brand-bright);
}

.lead { font-size: clamp(1.05rem, 1.9vw, 1.28rem); color: var(--text-muted); max-width: 62ch; }

.grad {
  background: linear-gradient(104deg, #fff 8%, var(--brand-bright) 52%, var(--steel) 96%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* --- Botones -------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.65rem;
  padding: 0.95rem 1.7rem;
  border-radius: 11px;
  font-weight: 640; font-size: 1rem; letter-spacing: -0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease),
              background 0.22s var(--ease), border-color 0.22s var(--ease);
  white-space: nowrap;
}
.btn svg { flex: none; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(135deg, var(--brand-bright), var(--brand));
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { box-shadow: 0 20px 54px rgba(240, 30, 66, 0.45); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.045);
  border-color: var(--line-strong);
  color: var(--text);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.09); border-color: rgba(255, 255, 255, 0.28); }

.btn-lg { padding: 1.15rem 2.3rem; font-size: 1.08rem; border-radius: 13px; }
.btn-sm { padding: 0.6rem 1.15rem; font-size: 0.9rem; border-radius: 9px; }

/* --- Cabecera ------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s;
}
.site-header.scrolled {
  background: rgba(8, 9, 13, 0.82);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom-color: var(--line);
}
.nav { display: flex; align-items: center; gap: 2.2rem; height: 74px; }

.logo { display: flex; align-items: center; gap: 0.65rem; font-weight: 720; font-size: 1.2rem; letter-spacing: -0.03em; flex: none; }
.logo svg { width: 32px; height: 32px; }
.logo b { font-weight: 720; }
.logo .up { color: var(--brand-bright); }

.nav-links { display: flex; align-items: center; gap: 0.35rem; margin-left: auto; }
.nav-links a {
  padding: 0.55rem 0.85rem; border-radius: 9px;
  font-size: 0.945rem; color: var(--text-muted); font-weight: 520;
  transition: color 0.18s, background 0.18s;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); background: rgba(255, 255, 255, 0.06); }

/* Menú desplegable */
.has-menu { position: relative; }
.has-menu > button {
  display: flex; align-items: center; gap: 0.35rem;
  background: none; border: 0; cursor: pointer;
  padding: 0.55rem 0.85rem; border-radius: 9px;
  font-size: 0.945rem; color: var(--text-muted); font-weight: 520;
  transition: color 0.18s, background 0.18s;
}
.has-menu > button:hover, .has-menu[data-open="true"] > button { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.has-menu > button svg { transition: transform 0.25s var(--ease); }
.has-menu[data-open="true"] > button svg { transform: rotate(180deg); }

.menu {
  position: absolute; top: calc(100% + 10px); left: 50%; translate: -50% 0;
  min-width: 268px; padding: 0.5rem;
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--radius); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s;
}
.has-menu[data-open="true"] .menu { opacity: 1; visibility: visible; transform: translateY(0); }
.menu a { display: block; padding: 0.7rem 0.85rem; border-radius: 9px; font-size: 0.925rem; color: var(--text-muted); }
.menu a:hover { background: rgba(255, 255, 255, 0.06); color: var(--text); }
.menu a span { display: block; font-size: 0.8rem; color: var(--text-dim); margin-top: 0.1rem; }

/* Selector de idioma */
.lang { display: flex; gap: 0.2rem; padding: 0.22rem; background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line); border-radius: 9px; }
.lang a { padding: 0.32rem 0.6rem; border-radius: 7px; font-size: 0.8rem; font-weight: 620; color: var(--text-dim); }
.lang a[aria-current="true"] { background: var(--brand); color: #fff; }

/* Menú móvil */
.burger { display: none; background: none; border: 1px solid var(--line-strong); border-radius: 9px; padding: 0.5rem; cursor: pointer; }
.burger span { display: block; width: 19px; height: 2px; background: var(--text); border-radius: 2px; transition: transform 0.25s var(--ease), opacity 0.2s; }
.burger span + span { margin-top: 4px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 940px) {
  .burger { display: block; margin-left: auto; }
  .nav-links {
    position: fixed; inset: 74px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0.15rem;
    padding: 1.1rem 1.25rem 1.6rem;
    background: rgba(8, 9, 13, 0.98);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    max-height: calc(100dvh - 74px); overflow-y: auto;
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav-links a, .has-menu > button { width: 100%; padding: 0.85rem 0.9rem; font-size: 1rem; }
  .has-menu > button { justify-content: space-between; }
  .menu {
    position: static; translate: none; opacity: 1; visibility: visible; transform: none;
    min-width: 0; background: none; border: 0; box-shadow: none; padding: 0 0 0 0.9rem;
    display: none;
  }
  .has-menu[data-open="true"] .menu { display: block; }
  .nav-links .btn { margin-top: 0.6rem; justify-content: center; }
  .lang { align-self: flex-start; margin-top: 0.5rem; }
}

/* --- Secciones ------------------------------------------------------------ */
section { padding: clamp(4.5rem, 9vw, 7.5rem) 0; }
.section-head { max-width: 720px; margin-bottom: 3.4rem; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { margin-top: 1.1rem; }
.tint { background: linear-gradient(180deg, transparent, var(--bg-alt) 12%, var(--bg-alt) 88%, transparent); }

/* --- Hero ----------------------------------------------------------------- */
.hero { padding-top: clamp(3.5rem, 7vw, 6rem); padding-bottom: clamp(3.5rem, 7vw, 5.5rem); text-align: center; }
.hero h1 { margin-bottom: 1.5rem; }
.hero .lead { margin-inline: auto; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; justify-content: center; margin-top: 2.4rem; }
.hero-note { margin-top: 1.15rem; font-size: 0.885rem; color: var(--text-dim); }
.hero-note strong { color: var(--text-muted); font-weight: 600; }

/* Franja de confianza */
.trust { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.7rem 1.9rem; margin-top: 2.6rem; }
.trust li { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; color: var(--text-muted); list-style: none; }
.trust svg { color: var(--ok); flex: none; }

/* Maqueta de la app */
.shot {
  margin-top: clamp(3rem, 6vw, 4.5rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  box-shadow: var(--shadow), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  overflow: hidden;
}
.shot-bar { display: flex; align-items: center; gap: 0.75rem; padding: 0.7rem 1rem; border-bottom: 1px solid var(--line); background: rgba(0, 0, 0, 0.28); }
.dots { display: flex; gap: 0.4rem; flex: none; }
.dots i { width: 11px; height: 11px; border-radius: 50%; background: #2c3140; display: block; }
.dots i:first-child { background: #ff5f57; }
.dots i:nth-child(2) { background: #febc2e; }
.dots i:nth-child(3) { background: #28c840; }
.shot-tabs { display: flex; gap: 0.35rem; overflow: hidden; }
.shot-tabs span {
  font-size: 0.78rem; padding: 0.32rem 0.8rem; border-radius: 7px;
  color: var(--text-dim); background: rgba(255, 255, 255, 0.04); white-space: nowrap;
}
.shot-tabs span.on { background: var(--brand); color: #fff; }
.shot-body { aspect-ratio: 16 / 9.6; display: grid; place-items: center; background:
  radial-gradient(80% 90% at 50% 0%, rgba(206, 14, 45, 0.09), transparent 70%), #0a0c12; padding: 1.5rem; }
.shot-inner { text-align: center; color: var(--text-dim); }
.shot-inner svg { margin: 0 auto 1rem; color: var(--brand); opacity: 0.85; }
.shot-inner b { display: block; color: var(--text-muted); font-size: 1.02rem; font-weight: 600; margin-bottom: 0.3rem; }
.shot-inner small { font-size: 0.85rem; }

/* --- Rejilla de tarjetas -------------------------------------------------- */
.grid { display: grid; gap: 1.25rem; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.g4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.card {
  padding: 1.9rem;
  background: linear-gradient(165deg, var(--surface), rgba(18, 21, 32, 0.55));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); border-color: var(--brand-line); }
.card h3 { margin-bottom: 0.6rem; }
.card p { color: var(--text-muted); font-size: 0.965rem; }
.card .ico {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 1.25rem;
  display: grid; place-items: center;
  background: var(--brand-soft); border: 1px solid var(--brand-line); color: var(--brand-bright);
}
.card-link { display: inline-flex; align-items: center; gap: 0.4rem; margin-top: 1.1rem; color: var(--brand-bright); font-weight: 600; font-size: 0.93rem; }
.card-link svg { transition: transform 0.22s var(--ease); }
.card:hover .card-link svg { transform: translateX(4px); }

/* Tarjeta destacada */
.card-feature { grid-column: span 2; display: grid; grid-template-columns: 1.05fr 1fr; gap: 2rem; align-items: center; padding: 2.4rem; }
@media (max-width: 800px) { .card-feature { grid-column: span 1; grid-template-columns: 1fr; } }

/* --- Métricas ------------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1.25rem; }
.stat { text-align: center; padding: 1.9rem 1.2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.stat b { display: block; font-size: clamp(2.1rem, 4.5vw, 2.9rem); font-weight: 730; letter-spacing: -0.04em; line-height: 1;
  background: linear-gradient(135deg, #fff, var(--brand-bright)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { display: block; margin-top: 0.6rem; font-size: 0.885rem; color: var(--text-dim); }

/* --- Tabla comparativa ---------------------------------------------------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 660px; font-size: 0.955rem; }
thead th {
  text-align: left; padding: 1.15rem 1.35rem; font-size: 0.79rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-dim); font-weight: 660; border-bottom: 1px solid var(--line-strong); background: rgba(0, 0, 0, 0.25);
  white-space: nowrap;
}
thead th.us { color: var(--brand-bright); }
tbody td { padding: 1.05rem 1.35rem; border-bottom: 1px solid var(--line); color: var(--text-muted); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: rgba(255, 255, 255, 0.022); }
tbody td:first-child { color: var(--text); font-weight: 570; }
tbody td.us { color: var(--text); background: rgba(206, 14, 45, 0.055); box-shadow: inset 1px 0 0 var(--brand-line), inset -1px 0 0 var(--brand-line); }
.yes { color: var(--ok); font-weight: 640; }
.no { color: #ef4444; font-weight: 640; }
.partial { color: var(--warn); font-weight: 640; }

/* --- Acordeón (FAQ) ------------------------------------------------------- */
.faq { display: grid; gap: 0.75rem; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; transition: border-color 0.25s; }
.faq details[open] { border-color: var(--brand-line); }
.faq summary {
  cursor: pointer; list-style: none; padding: 1.3rem 1.6rem;
  font-weight: 620; font-size: 1.03rem; display: flex; justify-content: space-between; gap: 1.2rem; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: none; width: 11px; height: 11px;
  border-right: 2px solid var(--text-dim); border-bottom: 2px solid var(--text-dim);
  transform: rotate(45deg) translate(-2px, -2px); transition: transform 0.25s var(--ease), border-color 0.25s;
}
.faq details[open] summary::after { transform: rotate(225deg) translate(-2px, -2px); border-color: var(--brand-bright); }
.faq .answer { padding: 0 1.6rem 1.5rem; color: var(--text-muted); font-size: 0.975rem; }
.faq .answer p + p { margin-top: 0.85rem; }

/* --- Pasos ---------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.6rem; counter-reset: s; }
.step { counter-increment: s; padding-top: 3.6rem; position: relative; }
.step::before {
  content: counter(s, decimal-leading-zero);
  position: absolute; top: 0; left: 0;
  font-size: 1.05rem; font-weight: 720; color: var(--brand-bright);
  width: 46px; height: 46px; display: grid; place-items: center;
  border: 1px solid var(--brand-line); border-radius: 12px; background: var(--brand-soft);
}
.step h3 { margin-bottom: 0.5rem; }
.step p { color: var(--text-muted); font-size: 0.965rem; }

/* --- Llamado final -------------------------------------------------------- */
.cta {
  text-align: center; padding: clamp(3.2rem, 7vw, 5rem) 2rem;
  border: 1px solid var(--brand-line); border-radius: var(--radius-lg);
  background:
    radial-gradient(70% 130% at 50% 0%, rgba(206, 14, 45, 0.22), transparent 70%),
    linear-gradient(180deg, var(--surface-2), var(--surface));
  box-shadow: var(--shadow);
}
.cta h2 { margin-bottom: 1.1rem; }
.cta .lead { margin-inline: auto; }
.cta .hero-actions { margin-top: 2.1rem; }

/* --- Artículos / contenido largo ------------------------------------------ */
.article-head { padding: clamp(3rem, 7vw, 5rem) 0 2.5rem; }
.article-head h1 { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 1.2rem; }
.meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1.3rem; font-size: 0.875rem; color: var(--text-dim); margin-top: 1.4rem; }
.meta time { color: var(--text-dim); }

.prose { font-size: 1.055rem; color: var(--text-muted); }
.prose > * + * { margin-top: 1.35rem; }
.prose h2 { color: var(--text); margin-top: 3.2rem; margin-bottom: 0.2rem; font-size: clamp(1.55rem, 3vw, 2.05rem); }
.prose h3 { color: var(--text); margin-top: 2.3rem; margin-bottom: 0.2rem; }
.prose strong { color: var(--text); font-weight: 640; }
.prose a { color: var(--brand-bright); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose a:hover { color: #fff; }
.prose ul, .prose ol { padding-left: 1.4rem; display: grid; gap: 0.6rem; }
.prose li::marker { color: var(--brand); }
.prose code { font-family: var(--mono); font-size: 0.885em; background: var(--surface-2); border: 1px solid var(--line); padding: 0.14em 0.42em; border-radius: 6px; color: var(--text); }
.prose blockquote {
  border-left: 3px solid var(--brand); padding: 0.4rem 0 0.4rem 1.4rem;
  color: var(--text); font-size: 1.1rem;
}
.prose figure { margin: 2rem 0; }
.prose .callout {
  border: 1px solid var(--brand-line); background: var(--brand-soft);
  border-radius: var(--radius); padding: 1.4rem 1.6rem; color: var(--text-muted);
}
.prose .callout strong { color: var(--text); }

/* Índice de contenidos */
.toc { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); padding: 1.4rem 1.6rem; }
.toc b { display: block; font-size: 0.79rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 0.8rem; }
.toc ol { margin: 0; padding-left: 1.1rem; display: grid; gap: 0.45rem; font-size: 0.94rem; }
.toc a { color: var(--text-muted); }
.toc a:hover { color: var(--brand-bright); }

/* Migas de pan */
.crumbs { display: flex; flex-wrap: wrap; gap: 0.45rem; font-size: 0.85rem; color: var(--text-dim); padding-top: 1.6rem; }
.crumbs a { color: var(--text-dim); }
.crumbs a:hover { color: var(--brand-bright); }
.crumbs span[aria-current] { color: var(--text-muted); }

/* Listado del blog */
.post-list { display: grid; gap: 1.1rem; }
.post {
  display: block; padding: 1.7rem 1.9rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); transition: transform 0.28s var(--ease), border-color 0.28s;
}
.post:hover { transform: translateY(-3px); border-color: var(--brand-line); }
.post .tag { font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brand-bright); font-weight: 650; }
.post h3 { margin: 0.55rem 0 0.5rem; }
.post p { color: var(--text-muted); font-size: 0.95rem; }

/* --- Página de descarga --------------------------------------------------- */
.dl-card {
  border: 1px solid var(--brand-line); border-radius: var(--radius-lg); padding: clamp(2rem, 5vw, 3.2rem);
  background: radial-gradient(80% 130% at 50% 0%, rgba(206, 14, 45, 0.16), transparent 70%), var(--surface);
  text-align: center; box-shadow: var(--shadow);
}
.dl-os { display: inline-flex; align-items: center; gap: 0.7rem; padding: 0.55rem 1.1rem; border: 1px solid var(--line-strong);
  border-radius: 999px; font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1.6rem; }
.dl-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 2rem; margin-top: 1.8rem; font-size: 0.885rem; color: var(--text-dim); }
.dl-meta b { color: var(--text-muted); font-weight: 620; }
/* Dos sistemas operativos, dos tarjetas a la par. Se muestran siempre las dos: quien entra
   desde el celular o desde la PC equivocada igual tiene que poder ver y copiar el link del
   otro sistema. El JS solo marca cuál corresponde al visitante, no esconde la otra. */
.dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; align-items: stretch; }
@media (max-width: 820px) { .dl-grid { grid-template-columns: 1fr; } }
.dl-grid .dl-card {
  padding: clamp(1.7rem, 3.5vw, 2.5rem);
  display: flex; flex-direction: column;
  /* Sin el degradado carmín del héroe: dos tarjetas iguales encendidas compiten entre sí. */
  background: var(--surface);
}
.dl-grid .dl-card .hero-actions { margin-top: auto; padding-top: 1.6rem; }
.dl-grid .dl-os { margin-bottom: 1.1rem; }
.dl-grid h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }
.dl-grid .dl-meta { gap: 0.4rem 1.4rem; margin-top: 1.2rem; font-size: 0.83rem; }

/* La tarjeta del sistema detectado: se resalta con el carmín de marca. */
.dl-card.is-suggested { border-color: var(--brand); box-shadow: var(--shadow-brand); }
.dl-tag {
  display: none; align-self: center; margin-bottom: 0.9rem;
  padding: 0.3rem 0.8rem; border-radius: 999px;
  background: var(--brand-soft); border: 1px solid var(--brand-line);
  color: var(--brand-bright); font-size: 0.76rem; font-weight: 650;
  letter-spacing: 0.06em; text-transform: uppercase;
}
.dl-card.is-suggested .dl-tag { display: block; }

.checklist { display: grid; gap: 0.85rem; margin-top: 0.5rem; }
.checklist li { display: flex; gap: 0.75rem; align-items: flex-start; list-style: none; color: var(--text-muted); font-size: 0.975rem; }
.checklist svg { flex: none; color: var(--ok); margin-top: 0.28rem; }

/* --- Pie ------------------------------------------------------------------ */
.site-footer { border-top: 1px solid var(--line); padding: 4rem 0 2.5rem; margin-top: 2rem; background: var(--bg-alt); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 2.5rem; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 { font-size: 0.79rem; letter-spacing: 0.11em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 1.1rem; font-weight: 650; }
.footer-grid ul { list-style: none; padding: 0; display: grid; gap: 0.65rem; }
.footer-grid a { color: var(--text-muted); font-size: 0.93rem; }
.footer-grid a:hover { color: var(--brand-bright); }
.footer-about p { color: var(--text-dim); font-size: 0.92rem; margin-top: 1rem; max-width: 36ch; }
/* Mail de contacto. Va pegado al párrafo de arriba (margen chico) para que se
   lea como parte del bloque de la empresa y no como un ítem suelto más. */
.footer-contact { margin-top: 0.55rem !important; }
.footer-contact a { color: var(--text-muted); overflow-wrap: anywhere; }
.footer-contact a:hover { color: var(--brand-bright); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
  margin-top: 3.2rem; padding-top: 1.8rem; border-top: 1px solid var(--line);
  font-size: 0.86rem; color: var(--text-dim);
}

/* Contador de visitas y descargas. Deliberadamente discreto: solo los dos
   números, sin rótulos a la vista ni línea separadora que llame la atención.
   Los rótulos siguen en el HTML como .visually-hidden, así un lector de
   pantalla igual dice "1 visitas"; con el mouse se descubren por el title.
   Arranca oculto y el JS lo muestra recién cuando la API respondió: un
   contador en cero o en blanco se lee como un sitio abandonado, que es
   exactamente lo contrario de lo que tiene que transmitir. */
.footer-stats {
  display: none; gap: 0.7rem; flex-wrap: wrap; justify-content: center;
  margin-top: 1.6rem;
}
.footer-stats.is-ready { display: flex; }
.footer-stat { display: flex; align-items: center; }
/* Sin rótulos, dos números sueltos se leen como uno solo: "1 0" parece "10". */
.footer-stat + .footer-stat::before {
  content: "·"; margin-right: 0.7rem; color: var(--text-dim); opacity: 0.45;
}
.footer-stat b {
  font-size: 0.78rem; font-weight: 500; color: var(--text-dim);
  font-variant-numeric: tabular-nums; opacity: 0.6;
  transition: opacity 0.2s var(--ease);
}
/* Si alguien se detiene ahí, que al menos se lean bien. */
.footer-stats:hover .footer-stat b { opacity: 1; }

/* --- Animación de entrada ------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* --- Utilidades ----------------------------------------------------------- */
.center { text-align: center; }
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }