/* ==========================================================================
   KSTmedia — hoja de estilos
   Paleta e tipografías según Manual Gráfico básico KST:
     Primario  #31AD68 (verde)
     Secundario #1D1D1B (negro carbón)
     Títulos:  IBM Plex Sans (Semibold / Regular)
     Cuerpo:   Ford Antenna ExtraLight (ver nota de licencia abajo)
   ========================================================================== */

/* --------------------------------------------------------------------
   Tipografía de cuerpo — NOTA IMPORTANTE
   "Ford Antenna" es una tipografía de uso restringido de Ford Motor
   Company y no está disponible en Google Fonts ni es open source.
   Si tenéis los archivos con licencia para uso web, copiadlos a
   assets/fonts/ (formato .woff2) y descomentad el bloque @font-face
   de abajo. Mientras tanto, el cuerpo de texto usa un fallback de
   palo muy ligero para respetar el espíritu del manual de marca.
   -------------------------------------------------------------------- */

/*
@font-face {
  font-family: 'Ford Antenna';
  src: url('assets/fonts/FordAntenna-ExtraLight.woff2') format('woff2');
  font-weight: 200;
  font-style: normal;
  font-display: swap;
}
*/

:root {
  --color-primary: #31AD68;
  --color-primary-dark: #278a53;
  --color-secondary: #1D1D1B;
  --color-bg: #FFFFFF;
  --color-bg-soft: #F6FAF8;
  --color-border: #E7E9E8;
  --color-text: #1D1D1B;
  --color-text-muted: #55605B;

  --font-heading: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Ford Antenna', 'Work Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container-width: 1180px;
  --radius: 14px;
  --transition: 200ms ease;
}

/* ---------- Reset básico ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-secondary);
  line-height: 1.2;
  margin: 0 0 .5em;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Accesibilidad: skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-secondary);
  color: #fff;
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--color-secondary);
  border-color: var(--color-secondary);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--color-secondary);
  color: #fff;
}
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}
.logo { height: 40px; width: auto; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-secondary);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
}
.site-nav a { padding: 6px 2px; border-bottom: 2px solid transparent; }
.site-nav a:hover { border-color: var(--color-primary); }
.nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 999px;
}
.nav-cta:hover { background: var(--color-primary-dark); border-color: transparent !important; }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }
  .site-nav.is-open { max-height: 320px; }
  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    gap: 18px;
  }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  padding: 72px 0 96px;
  background: radial-gradient(120% 140% at 100% 0%, rgba(49, 173, 104, 0.10) 0%, rgba(49, 173, 104, 0) 55%),
              var(--color-bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.1rem, 3.6vw, 3rem);
  max-width: 16ch;
}
.hero-subtitle {
  color: var(--color-text-muted);
  font-size: 1.08rem;
  max-width: 46ch;
  margin: 22px 0 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-video {
  background: var(--color-secondary);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: 0 24px 48px -20px rgba(29, 29, 27, 0.35);
}
.hero-video-player {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  background: #000;
}
.hero-video-caption {
  color: #fff;
  font-size: 0.85rem;
  opacity: 0.75;
  margin: 12px 4px 4px;
}

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

/* ==========================================================================
   SECCIONES GENERALES
   ========================================================================== */
section { padding: 88px 0; }
.section-intro {
  color: var(--color-text-muted);
  max-width: 60ch;
  font-size: 1.05rem;
  margin-bottom: 44px;
}

/* ---------- Servicios ---------- */
.services { background: var(--color-bg-soft); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -24px rgba(29, 29, 27, 0.25);
}
.service-icon {
  display: inline-flex;
  color: var(--color-primary);
  margin-bottom: 18px;
}
.service-card h3 { font-size: 1.15rem; }
.service-card p { color: var(--color-text-muted); margin: 0; }

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

/* ---------- KSTmedia / Sobre mí ---------- */
.about-copy { max-width: 72ch; }
.about-copy p { color: var(--color-text-muted); font-size: 1.05rem; }
.about-copy strong { color: var(--color-secondary); }

/* ---------- Cómo trabajamos ---------- */
.method { background: var(--color-secondary); }
.method h2 { color: #fff; }
.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.method-steps li {
  position: relative;
  padding-top: 44px;
}
.method-steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 0; left: 0;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}
.method-steps h3 { color: #fff; font-size: 1.05rem; }
.method-steps p { color: rgba(255,255,255,0.72); margin: 0; }

@media (max-width: 900px) {
  .method-steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .method-steps { grid-template-columns: 1fr; }
}

/* ---------- Blog ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.blog-card {
  border-top: 3px solid var(--color-primary);
  padding-top: 18px;
}
.blog-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin: 0 0 10px;
}
.blog-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.blog-card h3 a:hover { color: var(--color-primary); }
.blog-card p { color: var(--color-text-muted); font-size: 0.95rem; margin: 0; }

@media (max-width: 900px) {
  .blog-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .blog-grid { grid-template-columns: 1fr; }
}

/* ---------- FAQ ---------- */
.faq { background: var(--color-bg-soft); }
.faq-list { max-width: 76ch; }
.faq-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 14px;
}
.faq-item summary {
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  float: right;
  color: var(--color-primary);
  font-size: 1.3rem;
  line-height: 1;
}
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { color: var(--color-text-muted); margin: 14px 0 0; }

/* ---------- Contacto ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}
.contact-intro p { color: var(--color-text-muted); font-size: 1.05rem; max-width: 40ch; }
.contact-intro .btn { margin-top: 8px; }
.calendly-wrap {
  min-height: 900px;
  background: var(--color-bg-soft);
  border-radius: var(--radius);
  overflow: hidden;
}
.calendly-inline-widget { height: 100%; }

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

/* ==========================================================================
   BOTÓN FLOTANTE DE WHATSAPP
   ========================================================================== */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 28px -10px rgba(49, 173, 104, 0.55);
  z-index: 200;
  transition: transform var(--transition);
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: var(--color-secondary);
  color: rgba(255,255,255,0.78);
  padding: 56px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: start;
}
.footer-brand .logo-footer { margin-bottom: 14px; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 32ch; font-size: 0.92rem; }
.footer-nav ul { display: grid; gap: 10px; }
.footer-nav a:hover { color: var(--color-primary); }
.footer-copy {
  grid-column: 1 / -1;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 0.85rem;
}

@media (max-width: 700px) {
  .footer-inner { grid-template-columns: 1fr; }
}

/* ==========================================================================
   AÑADIDOS — sitio multi-página
   ========================================================================== */

/* ---------- Cabecera de página interior (sin vídeo) ---------- */
.page-hero {
  padding: 56px 0 64px;
  background: radial-gradient(120% 140% at 100% 0%, rgba(49, 173, 104, 0.10) 0%, rgba(49, 173, 104, 0) 55%),
              var(--color-bg);
}
.page-hero h1 { font-size: clamp(1.9rem, 3.2vw, 2.6rem); max-width: 24ch; }
.page-hero .section-intro { margin-bottom: 0; }

/* ---------- 404 ---------- */
.page-hero.not-found {
  padding: 90px 0 100px;
  text-align: center;
}
.page-hero.not-found .container {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.not-found-code {
  font-size: clamp(3.5rem, 10vw, 6rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}
.page-hero.not-found h1 { max-width: none; }
.page-hero.not-found .section-intro { margin: 14px 0 32px; }
.page-hero.not-found .hero-actions { justify-content: center; margin-bottom: 36px; }
.not-found-help {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding: 18px 0 0;
}
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs [aria-current="page"] { color: var(--color-secondary); font-weight: 600; }

/* ---------- Foto de busto + presentación, centrado (KSTmedia) ---------- */
.about { padding-bottom: 40px; }
.about-intro {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  justify-content: center;
  gap: 48px;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}
.about-intro .about-copy { text-align: left; }
.about-photo-wrap { position: static; margin: 0 auto; }
.about-photo {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: 0 24px 48px -24px rgba(29, 29, 27, 0.35);
}
.about-photo-caption {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* ---------- Cómo trabajo + propuesta de valor, a juego (KSTmedia) ---------- */
.about-details { padding-top: 40px; }
.about-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.about-work h2 { margin-bottom: 8px; }
.about-work .btn { margin-top: 10px; }

.about-value-prop {
  background: var(--color-bg-soft);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 28px 26px;
  align-self: start;
}
.about-value-prop h2 {
  font-size: 1.2rem;
  margin-bottom: 16px;
}
.about-value-prop p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: 14px;
}
.about-value-prop p:last-child { margin-bottom: 0; }
.value-prop-quote {
  color: var(--color-text) !important;
  font-weight: 600;
  font-style: italic;
  border-left: 3px solid var(--color-primary);
  padding-left: 14px;
}

@media (max-width: 860px) {
  .about-intro { grid-template-columns: 1fr; text-align: center; justify-items: center; }
  .about-intro .about-copy { text-align: left; }
  .about-photo-wrap { position: static; }
  .about-photo { max-width: 220px; }
  .about-details-grid { grid-template-columns: 1fr; }
}

/* ---------- Bloques de servicio (página Servicios) ---------- */
.service-block {
  padding: 56px 0;
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: 96px;
}
.service-block:last-of-type { border-bottom: none; }
.service-block h2 { font-size: 1.7rem; }
.service-block-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}
.service-block ul { display: grid; gap: 10px; margin: 20px 0 28px; }
.service-block li {
  padding-left: 26px;
  position: relative;
  color: var(--color-text-muted);
}
.service-block li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
}
.service-note {
  background: var(--color-bg-soft);
  border-left: 3px solid var(--color-primary);
  padding: 18px 20px;
  border-radius: 0 10px 10px 0;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}
.service-image {
  width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border-radius: var(--radius);
  margin-top: 18px;
  box-shadow: 0 20px 40px -24px rgba(29, 29, 27, 0.3);
}
@media (max-width: 860px) {
  .service-block-grid { grid-template-columns: 1fr; }
}

/* ---------- Contenido de artículo (blog) ---------- */
.article-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.article-content { max-width: 72ch; }
.article-content h2 { margin-top: 2.2em; font-size: 1.4rem; }
.article-content h3 { margin-top: 1.6em; font-size: 1.1rem; }
.article-content p { color: var(--color-text); }
.article-content ul, .article-content ol { margin: 0 0 1.2em; padding-left: 1.2em; color: var(--color-text); }
.article-content li { margin-bottom: 6px; }

.answer-capsule {
  background: var(--color-bg-soft);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 10px 10px 0;
  padding: 18px 22px;
  margin: 1.6em 0;
}
.answer-capsule p { margin: 0; }
.answer-capsule strong { font-family: var(--font-heading); color: var(--color-secondary); }

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.6em 0;
}
.article-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 0.94rem;
}
.article-table th, .article-table td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
}
.article-table th {
  background: var(--color-bg-soft);
  font-family: var(--font-heading);
  font-weight: 600;
}
@media (max-width: 560px) {
  .article-table { min-width: 420px; font-size: 0.88rem; }
  .article-table th, .article-table td { padding: 8px 10px; }
}

.article-cta {
  margin: 2.4em 0;
  padding: 28px;
  background: var(--color-secondary);
  border-radius: var(--radius);
  color: #fff;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.article-cta p { margin: 0; color: rgba(255,255,255,0.85); max-width: 46ch; }
.article-cta-group { display: flex; flex-wrap: wrap; gap: 12px; }
.article-cta .btn-ghost { color: #fff; border-color: rgba(255,255,255,0.55); }
.article-cta .btn-ghost:hover { background: #fff; color: var(--color-secondary); border-color: #fff; }

.author-box {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 3em;
  padding-top: 1.8em;
  border-top: 1px solid var(--color-border);
}
.author-box img {
  width: 52px; height: 52px;
  border-radius: 50%;
  object-fit: cover;
}
.author-box p { margin: 0; font-size: 0.92rem; color: var(--color-text-muted); }
.author-box strong { color: var(--color-secondary); font-family: var(--font-heading); }
.author-box a:hover { color: var(--color-primary); }

/* ---------- Listado de FAQ ampliado (página propia) ---------- */
.faq-page .faq-list { max-width: 84ch; }

/* ---------- Banner CTA reforzado (todas las páginas) ---------- */
.cta-banner {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: 64px 0;
}
.cta-banner h2 { color: #fff; margin-bottom: 10px; }
.cta-banner p { color: rgba(255,255,255,0.9); max-width: 52ch; margin: 0 auto 28px; }
.cta-banner .btn-primary {
  background: #fff;
  color: var(--color-primary-dark);
}
.cta-banner .btn-primary:hover { background: var(--color-secondary); color: #fff; }