/* ==========================================================================
   FULLCAPACITA — Hoja de estilos principal
   Paleta extraída directamente de FULLCAPACITA-1.png (ver informe de análisis)
   ========================================================================== */

:root {
  /* Paleta corporativa (extraída del logo) */
  --c-dark: #436127;      /* verde oscuro — sombras del isotipo / wordmark */
  --c-primary: #588838;   /* verde medio — color dominante del logo */
  --c-light: #98d878;     /* verde lima — acento del tagline y highlights */
  --c-dark-hover: #375019;

  --c-white: #ffffff;
  --c-bg-alt: #f6faf3;
  --c-border: #e1e8da;

  --c-text: #24301c;
  --c-text-muted: #5c6b54;

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --container-w: 1200px;
  --radius: 10px;
  --shadow-sm: 0 1px 3px rgba(36, 48, 28, 0.08);
  --shadow-md: 0 8px 24px rgba(36, 48, 28, 0.12);

  --header-h: 76px;

  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--c-text);
  background: var(--c-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  width: 100%;
}

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

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

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, p {
  margin: 0;
}

button {
  font: inherit;
  cursor: pointer;
}

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

section {
  padding-block: 88px;
}

.section-alt {
  background: var(--c-bg-alt);
}

.section-header {
  max-width: 680px;
  margin-bottom: 48px;
}

.eyebrow {
  display: inline-block;
  color: var(--c-primary);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.7rem, 1.4rem + 1.2vw, 2.4rem);
  font-weight: 800;
  color: var(--c-dark);
  line-height: 1.2;
}

.section-lead {
  margin-top: 14px;
  color: var(--c-text-muted);
  font-size: 1.05rem;
  max-width: 640px;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--c-dark);
  color: var(--c-white);
  padding: 12px 18px;
  border-radius: var(--radius);
  z-index: 1000;
  transition: top var(--transition);
  font-weight: 600;
}

.skip-link:focus {
  top: 12px;
}

/* ---------- Focus visible ---------- */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--c-light);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.98rem;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--c-dark);
  color: var(--c-white);
}

.btn-primary:hover {
  background: var(--c-dark-hover);
}

.btn-outline {
  background: transparent;
  color: var(--c-dark);
  border-color: var(--c-dark);
}

.btn-outline:hover {
  background: var(--c-dark);
  color: var(--c-white);
}

.btn-aula {
  background: var(--c-light);
  color: var(--c-dark);
  border-color: var(--c-light);
}

.btn-aula:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: var(--c-white);
}

.btn-block {
  width: 100%;
}

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow var(--transition), background var(--transition);
}

/* Efecto muy sutil al iniciar el scroll: leve sombra + fondo algo más opaco */
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 14px rgba(36, 48, 28, 0.10);
}

.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand img {
  height: 42px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 8px;
  font-weight: 600;
  color: var(--c-text);
  transition: background var(--transition), color var(--transition);
}

.nav-links a:hover {
  background: var(--c-bg-alt);
  color: var(--c-dark);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-aula-header {
  padding: 10px 20px;
  font-size: 0.92rem;
}

.hamburger {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  border-radius: 8px;
}

.hamburger-box {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-dark);
  position: relative;
  transition: background var(--transition);
}

.hamburger-box::before,
.hamburger-box::after {
  content: "";
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--c-dark);
  transition: transform var(--transition), top var(--transition);
}

.hamburger-box::before {
  top: -8px;
}

.hamburger-box::after {
  top: 8px;
}

.hamburger[aria-expanded="true"] .hamburger-box {
  background: transparent;
}

.hamburger[aria-expanded="true"] .hamburger-box::before {
  top: 0;
  transform: rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger-box::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  position: relative;
  padding-block: 0;
  overflow: hidden;
  background: var(--c-dark);
  min-height: 640px;
  display: flex;
  align-items: center;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
  /* Espejo horizontal (solo CSS, no se toca el archivo): el libro y el
     computador estaban en la mitad izquierda de la fotografía original,
     justo donde ahora se concentra el texto. Al reflejar la imagen quedan
     visibles del lado derecho, despejados del overlay. */
  transform: scaleX(-1);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(20, 31, 13, 0.92) 0%,
    rgba(24, 36, 15, 0.86) 26%,
    rgba(35, 53, 21, 0.55) 44%,
    rgba(53, 77, 32, 0.22) 58%,
    rgba(67, 97, 39, 0.06) 72%,
    rgba(67, 97, 39, 0) 86%
  );
}

.hero .container {
  position: relative;
  z-index: 1;
  padding-block: 110px;
}

.hero-content {
  max-width: 480px;
}

.hero-title {
  color: var(--c-white);
  font-size: clamp(2.1rem, 1.6rem + 2.2vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
}

.hero-subtitle {
  margin-top: 18px;
  color: var(--c-light);
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  font-weight: 700;
}

.hero-text {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
  max-width: 540px;
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero .btn-primary {
  background: var(--c-light);
  color: var(--c-dark);
}

.hero .btn-primary:hover {
  background: var(--c-white);
}

.hero .btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--c-white);
}

.hero .btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--c-white);
}

/* ==========================================================================
   NOSOTROS
   ========================================================================== */

.nosotros {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.nosotros-text p {
  color: var(--c-text-muted);
  margin-bottom: 18px;
  font-size: 1.02rem;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  color: var(--c-dark);
  font-weight: 700;
  font-size: 0.92rem;
  padding: 10px 18px;
  border-radius: 999px;
}

.badge svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--c-primary);
}

.badge strong {
  color: var(--c-dark);
}

.nosotros-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4 / 3;
}

.nosotros-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

/* ==========================================================================
   SERVICIOS
   ========================================================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--c-light);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--c-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon svg {
  width: 28px;
  height: 28px;
  color: var(--c-primary);
}

.service-card h3 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 10px;
}

.service-card p {
  color: var(--c-text-muted);
  font-size: 0.97rem;
}

.service-modes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.mode-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--c-dark);
  background: var(--c-light);
  padding: 4px 10px;
  border-radius: 999px;
}

/* Showcase de fotos de servicios */
.services-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}

.showcase-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  aspect-ratio: 16 / 10;
}

.showcase-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.showcase-caption {
  position: absolute;
  inset: auto 0 0 0;
  background: linear-gradient(0deg, rgba(24, 36, 15, 0.85) 0%, rgba(24, 36, 15, 0) 100%);
  color: var(--c-white);
  padding: 40px 22px 18px;
  font-weight: 700;
  font-size: 0.98rem;
}

/* ==========================================================================
   COMO TRABAJAMOS
   ========================================================================== */

.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position: relative;
  list-style: none;
}

.process::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 40px;
  right: 40px;
  height: 2px;
  background: var(--c-border);
  z-index: 0;
}

.process-step {
  position: relative;
  z-index: 1;
  background: var(--c-white);
}

.process-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--c-dark);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.05rem;
  margin-bottom: 18px;
}

.process-step h3 {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 8px;
}

.process-step p {
  color: var(--c-text-muted);
  font-size: 0.92rem;
}

/* ==========================================================================
   CALIDAD
   ========================================================================== */

.quality {
  background: var(--c-dark);
  color: var(--c-white);
}

.quality .section-title {
  color: var(--c-white);
}

.quality .section-lead {
  color: rgba(255, 255, 255, 0.82);
}

.quality-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.commitment-list {
  display: grid;
  gap: 16px;
}

.commitment-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.92);
}

.commitment-item svg {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  color: var(--c-light);
  margin-top: 2px;
}

.quality-cert {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  padding: 32px;
}

.quality-cert p {
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 20px;
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--c-light);
  color: var(--c-dark);
  font-weight: 800;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 1rem;
}

/* ==========================================================================
   CTA FINAL / CONTACTO
   ========================================================================== */

.cta-final {
  text-align: center;
}

.cta-final .section-header {
  max-width: 700px;
  margin-inline: auto;
}

.cta-final .section-lead {
  margin-inline: auto;
}

.cta-final-actions {
  margin-top: 36px;
  display: flex;
  justify-content: center;
}

.contact-email {
  margin-top: 22px;
  color: var(--c-text-muted);
  font-size: 0.95rem;
}

.contact-email a {
  color: var(--c-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  background: var(--c-bg-alt);
  border-top: 1px solid var(--c-border);
  padding-block: 48px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--c-border);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand img {
  height: 36px;
  width: auto;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.footer-links a {
  font-weight: 600;
  color: var(--c-dark);
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--c-text-muted);
  font-size: 0.9rem;
}

/* ==========================================================================
   MOBILE NAV
   ========================================================================== */

@media (max-width: 900px) {
  .hamburger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    background: var(--c-white);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 24px;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--transition), visibility 0s linear var(--transition);
    overflow-y: auto;
  }

  .main-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    transition: transform var(--transition), visibility 0s linear;
  }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-links a {
    padding: 14px 12px;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--c-border);
  }

  .header-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-aula-header {
    width: 100%;
  }
}

/* ==========================================================================
   RESPONSIVE — Tablet / Móvil
   ========================================================================== */

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 40px;
  }

  .process::before {
    display: none;
  }

  .nosotros {
    grid-template-columns: 1fr;
  }

  .nosotros-media {
    order: -1;
    aspect-ratio: 16 / 9;
  }

  .quality-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  section {
    padding-block: 60px;
  }

  .hero .container {
    padding-block: 72px;
  }

  .hero {
    min-height: 560px;
  }

  .hero-overlay {
    background: linear-gradient(
      180deg,
      rgba(24, 36, 15, 0.55) 0%,
      rgba(24, 36, 15, 0.88) 55%,
      rgba(24, 36, 15, 0.96) 100%
    );
  }

  .hero-media img {
    object-position: 30% center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .services-showcase {
    grid-template-columns: 1fr;
  }

  .process {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

/* ==========================================================================
   VOLVER ARRIBA
   ========================================================================== */

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--c-dark);
  color: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), background var(--transition), visibility 0s linear var(--transition);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity var(--transition), transform var(--transition), background var(--transition), visibility 0s linear;
}

.back-to-top:hover {
  background: var(--c-dark-hover);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--c-light);
  outline-offset: 3px;
  border-radius: 50%;
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 640px) {
  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }

  .back-to-top svg {
    width: 18px;
    height: 18px;
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }
}