/* ==========================================================================
   BIKreando Modern Design System - Performance-Driven & Mobile-First
   ========================================================================== */

:root {
  --color-primary: #FF570E;
  --color-primary-hover: #E04805;
  --color-primary-soft: #FFF4ED;
  --color-dark: #0F172A;
  --color-dark-surface: #1E293B;
  --color-light-bg: #F8FAFC;
  --color-card-bg: #FFFFFF;
  --color-border: #E2E8F0;
  
  --color-text-main: #0F172A;
  --color-text-muted: #64748B;
  --color-text-light: #94A3B8;

  --sede-alicante: #0284C7;
  --sede-alicante-bg: #E0F2FE;
  --sede-valencia: #D97706;
  --sede-valencia-bg: #FEF3C7;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.07);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.1);
  --shadow-orange: 0 6px 20px rgba(255, 87, 14, 0.25);

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-base);
  font-size: 16px;
  scroll-behavior: smooth;
  color: var(--color-text-main);
  background-color: var(--color-light-bg);
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

button, input, select, textarea {
  font: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* ==========================================================================
   Header & Navegación (Mobile-First)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

.nav-links {
  display: none;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text-main);
  padding: 0.5rem 0.25rem;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 46px;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-orange);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #fff;
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-text-muted);
  background-color: #f1f5f9;
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  min-height: 36px;
}

/* Menú móvil */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  width: 100%;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: 1.5rem;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav .nav-link {
  font-size: 1.1rem;
  padding: 0.5rem 0;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 4rem 0 3.5rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #FFF8F5 100%);
  border-bottom: 1px solid rgba(255, 87, 14, 0.1);
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  border: 1px solid rgba(255, 87, 14, 0.2);
}

.hero-title {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.hero-title span {
  color: var(--color-primary);
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  justify-content: center;
}

/* Métricas destacadas */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 3rem;
}

.stat-card {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.stat-label {
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.25rem;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Selector de Sede (Pill Segmented Control)
   ========================================================================== */
.sede-selector-wrapper {
  margin: 1.5rem 0 2rem;
  display: flex;
  justify-content: center;
}

.sede-pill-switch {
  display: inline-flex;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(10px);
  padding: 5px;
  border-radius: var(--radius-full);
  gap: 6px;
  width: 100%;
  max-width: 440px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.sede-pill-btn {
  flex: 1;
  padding: 0.65rem 0.85rem;
  border: none;
  background: transparent;
  color: #E2E8F0;
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
}

.sede-pill-btn:hover {
  color: #FFFFFF;
}

.sede-pill-btn.active {
  background: #FFFFFF !important;
  color: #0F172A !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25) !important;
}

.sede-pill-btn.active[data-target="todas"] {
  color: #0F172A !important;
}

.sede-pill-btn.active[data-target="alicante"] {
  color: #0284C7 !important;
}

.sede-pill-btn.active[data-target="valencia"] {
  color: #D97706 !important;
}

.badge-sede {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-sede.alicante {
  background-color: var(--sede-alicante-bg);
  color: var(--sede-alicante);
}

.badge-sede.valencia {
  background-color: var(--sede-valencia-bg);
  color: var(--sede-valencia);
}

.badge-sede.todas, .badge-sede.ambas {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}

/* ==========================================================================
   Tarjetas de Contenido (Desafíos, Muros, Blog)
   ========================================================================== */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #f1f5f9;
  overflow: hidden;
  position: relative;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.card:hover .card-img-wrap img {
  transform: scale(1.03);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.card-footer {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Empresas Colaboradoras */
.partners-section {
  padding: 3.5rem 0;
  background: #fff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  align-items: center;
}

.partner-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: var(--color-light-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  min-height: 90px;
  transition: all 0.2s ease;
}

.partner-card:hover {
  background: #fff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.partner-card img {
  max-height: 48px;
  max-width: 100%;
  object-fit: contain;
  filter: grayscale(80%);
  opacity: 0.85;
  transition: all 0.2s ease;
}

.partner-card:hover img {
  filter: grayscale(0%);
  opacity: 1;
}

/* ==========================================================================
   Fases de BIKreando
   ========================================================================== */
.fases-timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.fase-card {
  background: #fff;
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  position: relative;
  border-left: 5px solid var(--color-primary);
}

.fase-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.fase-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--color-dark);
  color: #fff;
  padding: 3.5rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #fff;
}

.footer-col p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.social-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.social-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-dark-surface);
  color: #fff;
  transition: all 0.2s ease;
}

.social-icon-btn:hover {
  background: var(--color-primary);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-dark-surface);
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.85rem;
}

/* ==========================================================================
   Media Queries (Tablets & Desktop)
   ========================================================================== */
@media (min-width: 640px) {
  .hero-actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .partners-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .nav-links {
    display: flex;
  }
  .mobile-toggle {
    display: none;
  }
  .hero-title {
    font-size: 3.2rem;
  }
  .cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

/* ==========================================================================
   Artículo de Blog / Detalle de Publicación
   ========================================================================== */
.post-content {
  font-size: 1.15rem;
  line-height: 1.85;
  color: #1e293b;
}

.post-content p {
  margin-bottom: 1.5rem;
}

.post-content h2,
.post-content h3,
.post-content h4 {
  color: var(--color-dark);
  font-weight: 800;
  margin-top: 2rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}

.post-content blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 1rem 1.5rem;
  margin: 2rem 0;
  background: var(--color-light-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: #334155;
}

.post-content ul,
.post-content ol {
  margin: 1.25rem 0 1.5rem 1.5rem;
}

.post-content li {
  margin-bottom: 0.5rem;
}