/* Errea Landing - Marca potente, blanco y negro */

.skip-link {
  position: absolute;
  top: 1rem;
  left: -9999px;
  z-index: 1000;
  padding: .75rem 1rem;
  background: #fff;
  color: #000;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  border: 2px solid #000;
}
.skip-link:focus {
  left: 1rem;
}

.landing-page {
  --landing-bg: #0a0a0a;
  --landing-text: #ffffff;
  --landing-muted: rgba(255,255,255,.6);
  --landing-border: rgba(255,255,255,.12);
}

.landing-page body {
  background: var(--landing-bg);
  color: var(--landing-text);
}

.landing-page {
  scroll-behavior: smooth;
}

.landing-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.5rem 2rem;
  background: transparent;
  transition: background .25s ease, padding .25s ease;
}

.landing-header.scrolled {
  background: rgba(10,10,10,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--landing-border);
}

.landing-header .landing-header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.landing-header .brand {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--landing-text);
}
.landing-header .brand:hover {
  color: var(--landing-text);
  text-decoration: none;
  opacity: .9;
}

.landing-header .nav-links {
  display: flex;
  gap: 2rem;
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.landing-header .nav-links a {
  color: var(--landing-muted);
  text-decoration: none;
  transition: color .2s;
}
.landing-header .nav-links a:hover {
  color: var(--landing-text);
  text-decoration: none;
}

/* Nav móvil */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: rgba(255,255,255,.1);
  color: var(--landing-text);
  border-radius: 4px;
  cursor: pointer;
  transition: background .2s;
}

.nav-toggle:hover {
  background: rgba(255,255,255,.18);
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
  border-radius: 1px;
  transition: transform .2s, opacity .2s;
}

.landing-header.nav-open .nav-toggle-bar:nth-child(1),
.body-nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.landing-header.nav-open .nav-toggle-bar:nth-child(2),
.body-nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.landing-header.nav-open .nav-toggle-bar:nth-child(3),
.body-nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 99;
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    max-width: 85vw;
    height: 100vh;
    flex-direction: column;
    justify-content: flex-start;
    padding: 5rem 1.5rem 2rem;
    gap: 0;
    background: var(--landing-bg);
    border-left: 1px solid var(--landing-border);
    z-index: 101;
    transform: translateX(100%);
    transition: transform .25s ease;
    box-shadow: -8px 0 32px rgba(0,0,0,.3);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links a {
    display: block;
    padding: 1rem 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--landing-border);
  }

  .nav-backdrop[hidden] {
    display: none !important;
  }

  .nav-backdrop:not([hidden]) {
    display: block;
  }

  body.nav-open {
    overflow: hidden;
  }
}

@media (min-width: 769px) {
  .nav-links {
    display: flex !important;
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    background: transparent;
    border: none;
    transform: none;
    box-shadow: none;
  }
}

/* Focus accesibilidad landing */
.landing-page a:focus-visible,
.landing-page button:focus-visible {
  outline: 2px solid var(--landing-text);
  outline-offset: 2px;
}

.skip-link:focus {
  outline: 2px solid var(--landing-text);
  outline-offset: 2px;
}

/* Hero */
.landing-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}

.landing-hero .hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 80% at 50% 100%, rgba(255,255,255,.06) 0%, transparent 55%),
    radial-gradient(ellipse 70% 40% at 50% 0%, rgba(255,255,255,.03) 0%, transparent 50%);
  pointer-events: none;
}

.landing-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 120%, rgba(255,255,255,.04) 0%, transparent 60%);
  pointer-events: none;
}

.landing-hero .hero-wordmark {
  position: relative;
  font-weight: 800;
  font-size: clamp(3rem, 12vw, 8rem);
  letter-spacing: .15em;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 1rem;
  letter-spacing: .2em;
}

.landing-hero .hero-tagline {
  position: relative;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--landing-muted);
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
  max-width: 480px;
  margin: 0 auto 0.5rem;
  line-height: 1.5;
}

.landing-hero .hero-desc {
  position: relative;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--landing-muted);
  max-width: 420px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
  opacity: .95;
}

.landing-hero .hero-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
}

.landing-hero .hero-btn {
  display: inline-block;
  padding: 0.9rem 1.75rem;
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background .2s, color .2s, border-color .2s, transform .1s;
  font-family: inherit;
  cursor: pointer;
}

.landing-hero .hero-btn-primary {
  background: var(--landing-text);
  color: var(--landing-bg);
  border-color: var(--landing-text);
}

.landing-hero .hero-btn-primary:hover {
  background: rgba(255,255,255,.92);
  color: var(--landing-bg);
  text-decoration: none;
  transform: translateY(-1px);
}

.landing-hero .hero-btn-ghost {
  background: transparent;
  color: var(--landing-muted);
  border-color: var(--landing-border);
}

.landing-hero .hero-btn-ghost:hover {
  color: var(--landing-text);
  border-color: rgba(255,255,255,.3);
  text-decoration: none;
  transform: translateY(-1px);
}

/* Steps - Cómo funciona */
.landing-steps {
  padding: 5rem 2rem;
  background: #0d0d0d;
  border-top: 1px solid var(--landing-border);
}

.landing-steps-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.landing-steps .section-label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--landing-muted);
  margin-bottom: 1rem;
}

.landing-steps .section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 2.5rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.step-card {
  padding: 1.75rem 1.5rem;
  border: 1px solid var(--landing-border);
  background: rgba(255,255,255,.02);
  border-radius: 4px;
  transition: border-color .2s, background .2s;
}

.step-card:hover {
  border-color: rgba(255,255,255,.2);
  background: rgba(255,255,255,.04);
}

.step-num {
  display: inline-block;
  width: 2.25rem;
  height: 2.25rem;
  line-height: 2.25rem;
  text-align: center;
  font-size: 1rem;
  font-weight: 800;
  color: var(--landing-bg);
  background: var(--landing-text);
  border-radius: 50%;
  margin-bottom: 1.25rem;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  color: var(--landing-text);
}

.step-text {
  font-size: .95rem;
  line-height: 1.6;
  color: var(--landing-muted);
  margin: 0;
}

@media (max-width: 768px) {
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .landing-steps { padding: 3.5rem 1.5rem; }
}

/* Features strip */
.landing-features {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--landing-border);
  background: #0a0a0a;
}

.landing-features-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem 3rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .95rem;
  color: var(--landing-muted);
  font-weight: 500;
}

.feature-icon {
  color: var(--landing-text);
  font-size: .6rem;
  opacity: .8;
}

@media (max-width: 640px) {
  .landing-features-inner { flex-direction: column; align-items: center; gap: 1.25rem; }
}

/* Section blocks */
.landing-section {
  padding: 5rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.landing-section--dark {
  background: var(--landing-bg);
}

.landing-section--light {
  background: #111;
  border-top: 1px solid var(--landing-border);
}

.landing-section .section-label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--landing-muted);
  margin-bottom: 1rem;
}

.landing-section .section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.landing-section .section-body {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--landing-muted);
}

.landing-section .section-body p {
  margin: 0 0 1rem;
}

/* Formulario de acceso */
.landing-access {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border: 1px solid var(--landing-border);
  background: rgba(255,255,255,.03);
}
.landing-access .access-label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--landing-muted);
  margin-bottom: .75rem;
}
.landing-access .access-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .75rem;
}
.landing-access .access-input {
  width: 100%;
  padding: .9rem 1rem;
  border: 1px solid var(--landing-border);
  background: rgba(0,0,0,.35);
  color: var(--landing-text);
  font: inherit;
  outline: none;
}
.landing-access .access-input::placeholder {
  color: rgba(255,255,255,.45);
}
.landing-access .access-input:focus {
  border-color: rgba(255,255,255,.35);
}
.landing-access .access-btn {
  padding: .9rem 1.25rem;
  border: 1px solid var(--landing-text);
  background: var(--landing-text);
  color: var(--landing-bg);
  font: inherit;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity .2s;
}
.landing-access .access-btn:hover {
  opacity: .9;
}
.landing-access .access-help {
  margin: .85rem 0 0;
  color: var(--landing-muted);
  font-size: .9rem;
  line-height: 1.5;
}
.landing-access code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .9em;
  color: rgba(255,255,255,.9);
}

/* CTA block */
.landing-cta-block {
  text-align: center;
  padding: 4rem 2rem;
  border-top: 1px solid var(--landing-border);
}

.landing-cta-block .cta-title {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 600;
  letter-spacing: .02em;
  margin-bottom: .75rem;
}

.landing-cta-block .cta-text {
  color: var(--landing-muted);
  font-size: 1rem;
  margin-bottom: 1.5rem;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}

.landing-cta-block .cta-hint {
  margin-top: 1.25rem;
  font-size: .85rem;
  color: var(--landing-muted);
  opacity: .9;
}

.landing-cta-block .btn-landing {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--landing-bg);
  background: var(--landing-text);
  border: none;
  border-radius: 0;
  text-decoration: none;
  transition: background .2s, color .2s;
  cursor: pointer;
  font-family: inherit;
}

.landing-cta-block .btn-landing:hover {
  background: rgba(255,255,255,.9);
  color: var(--landing-bg);
  text-decoration: none;
}

/* Footer landing */
.landing-footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid var(--landing-border);
  text-align: center;
}

.landing-footer .footer-brand {
  font-weight: 700;
  font-size: .9rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--landing-text);
  margin-bottom: 1rem;
}

.landing-footer .footer-links {
  font-size: .8rem;
  color: var(--landing-muted);
}

.landing-footer .footer-links a {
  color: var(--landing-muted);
  text-decoration: none;
}
.landing-footer .footer-links a:hover {
  color: var(--landing-text);
  text-decoration: none;
}

.landing-footer .footer-links span {
  margin: 0 .5rem;
  opacity: .5;
}

.landing-footer .footer-copy {
  margin-top: 1.5rem;
  font-size: .75rem;
  color: var(--landing-muted);
  opacity: .8;
}

/* Blog (mismo diseño que landing) */
.landing-hero--short {
  min-height: 50vh;
  padding: 5rem 2rem 3rem;
}

.landing-blog-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.landing-blog-item {
  border-bottom: 1px solid var(--landing-border);
  padding: 1.75rem 0;
  transition: background .2s;
}

.landing-blog-item:last-child {
  border-bottom: none;
}

.landing-blog-item:hover {
  background: rgba(255,255,255,.02);
  margin-left: -1rem;
  margin-right: -1rem;
  padding-left: 1rem;
  padding-right: 1rem;
}

.landing-blog-item-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .75rem;
  text-decoration: none;
  color: var(--landing-text);
}

.landing-blog-item-link:hover {
  color: var(--landing-text);
  text-decoration: none;
  opacity: .95;
}

.landing-blog-item-title {
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: .02em;
  line-height: 1.3;
}

.landing-blog-item-meta {
  font-size: .85rem;
  color: var(--landing-muted);
  font-weight: 400;
}

.landing-blog-item-excerpt {
  margin: .6rem 0 0;
  font-size: .95rem;
  line-height: 1.65;
  color: var(--landing-muted);
}

.landing-blog-item-read {
  display: inline-block;
  margin-top: .75rem;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--landing-text);
  text-decoration: none;
  border-bottom: 1px solid var(--landing-border);
  padding-bottom: 2px;
  transition: border-color .2s, opacity .2s;
}

.landing-blog-item-read:hover {
  border-color: var(--landing-text);
  opacity: .9;
  text-decoration: none;
  color: var(--landing-text);
}

.landing-blog-back {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-size: .85rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--landing-muted);
  text-decoration: none;
}

.landing-blog-back:hover {
  color: var(--landing-text);
  text-decoration: none;
}

.landing-blog-article-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  margin-bottom: .25rem;
}

.landing-blog-article-meta {
  font-size: .9rem;
  margin: 0;
}

.landing-blog-article-body {
  font-size: 1.05rem;
  line-height: 1.75;
}

.landing-blog-article-body p {
  margin: 0 0 1rem;
}