/**
 * Intro Sections - RESPONSIVE OPTIMIZADO
 * Secciones de introducción entre secciones principales
 */

/* BASE MOBILE FIRST */
.intro-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 1rem 3rem;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0a1e 0%, #1a1a3e 50%, #0f2847 100%);
  transition: opacity 0.4s ease-out, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.intro-section.variant-1 {
  background: linear-gradient(135deg, #0a0a1e 0%, #1a1a3e 50%, #0f2847 100%);
}

.intro-section.variant-2 {
  background: linear-gradient(135deg, #1a0a2e 0%, #2a1a4e 50%, #1f0f47 100%);
}

.intro-section.variant-3 {
  background: linear-gradient(135deg, #0f1a2e 0%, #1f2a4e 50%, #0a1f47 100%);
}

.intro-content {
  max-width: 100%;
  text-align: center;
  color: white;
  z-index: 1;
  position: relative;
  animation: introFadeIn 1.2s ease-out;
  padding: 0 1rem;
}

@keyframes introFadeIn {
  from {
    opacity: 0;
    transform: translateY(40px) translateZ(0);
  }
  to {
    opacity: 1;
    transform: translateY(0) translateZ(0);
  }
}

.intro-badge {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  margin-bottom: 1rem;
  background: rgba(102, 126, 234, 0.15);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(167, 139, 250, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.1);
}

.intro-title {
  font-size: clamp(1.75rem, 6vw, 3rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.intro-title-gradient {
  background: linear-gradient(135deg, #ffffff 0%, #c7b8ff 50%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline;
}

.intro-title-highlight {
  color: var(--color-brand-secondary);
  position: relative;
  display: inline-block;
}

.intro-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  opacity: 0.92;
  line-height: 1.7;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}

.intro-stats {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  gap: 2.5rem;
  margin-top: 2rem;
  padding: 4rem 2rem;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.05);
  min-height: 320px;
}

.intro-stat {
  text-align: center;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 2rem 1.5rem;
  gap: 0.75rem;
}

.intro-stat-number {
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-brand-secondary), var(--color-brand-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1.1;
  margin-bottom: 0.75rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.intro-stat-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  line-height: 1.7;
  max-width: 200px;
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* 2. Móvil grande / phablet (~480px) */
@media (min-width: 480px) {
  .intro-section {
    padding: 7rem 1.5rem 3.5rem;
  }
  
  .intro-badge {
    padding: 0.55rem 1.4rem;
    font-size: 0.725rem;
    margin-bottom: 1.25rem;
  }
  
  .intro-title {
    font-size: clamp(2rem, 5.5vw, 3.25rem);
    margin-bottom: 1.75rem;
  }
  
  .intro-subtitle {
    font-size: clamp(1.05rem, 2.4vw, 1.35rem);
    margin-bottom: 1.75rem;
  }
  
  .intro-stats {
    gap: 2.5rem;
    padding: 4rem 2rem;
    margin-top: 2.25rem;
    min-height: 330px;
  }
  
  .intro-stat {
    min-height: 190px;
    padding: 2rem 1.5rem;
  }
  
  .intro-stat-number {
    font-size: clamp(2.2rem, 7.5vw, 3.5rem);
    margin-bottom: 0.75rem;
  }
  
  .intro-stat-label {
    font-size: 0.95rem;
    line-height: 1.75;
    max-width: 220px;
    letter-spacing: 0.08em;
  }
}

/* 3. Móvil grande / phablet (~576px) */
@media (min-width: 576px) {
  .intro-section {
    padding: 7.5rem 2rem 4rem;
  }
  
  .intro-content {
    max-width: 540px;
    padding: 0;
  }
  
  .intro-badge {
    padding: 0.6rem 1.6rem;
    font-size: 0.75rem;
    margin-bottom: 1.5rem;
  }
  
  .intro-title {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    margin-bottom: 2rem;
  }
  
  .intro-subtitle {
    font-size: clamp(1.1rem, 2.3vw, 1.4rem);
    line-height: 1.75;
    margin-bottom: 2rem;
  }
  
  .intro-stats {
    flex-direction: row;
    gap: 1.5rem;
    padding: 2.5rem 1.5rem;
    margin-top: 2.5rem;
    min-height: auto;
  }
  
  .intro-stat {
    flex: 1;
    min-height: 140px;
    padding: 1.5rem 1rem;
  }
  
  .intro-stat-number {
    font-size: clamp(2rem, 5vw, 2.5rem);
    margin-bottom: 0.7rem;
  }
  
  .intro-stat-label {
    font-size: 0.75rem;
    line-height: 1.8;
    max-width: 100%;
    letter-spacing: 0.07em;
  }
}

/* 4. Tablet vertical (~768px) */
@media (min-width: 768px) {
  .intro-section {
    padding: 8rem 2.5rem 4rem;
  }
  
  .intro-content {
    max-width: 700px;
  }
  
  .intro-badge {
    padding: 0.6rem 1.75rem;
    font-size: 0.775rem;
    margin-bottom: 1.5rem;
  }
  
  .intro-title {
    font-size: clamp(2.5rem, 4.5vw, 3.75rem);
    margin-bottom: 2rem;
  }
  
  .intro-subtitle {
    font-size: clamp(1.125rem, 2.2vw, 1.5rem);
    line-height: 1.8;
    margin-bottom: 2rem;
    max-width: 650px;
  }
  
  .intro-stats {
    gap: 2rem;
    padding: 2.25rem 1.75rem;
    margin-top: 3rem;
  }
  
  .intro-stat {
    min-height: 130px;
    padding: 1.25rem 1rem;
  }
  
  .intro-stat-number {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    margin-bottom: 0.65rem;
  }
  
  .intro-stat-label {
    font-size: 0.775rem;
    letter-spacing: 0.08em;
    line-height: 1.85;
    max-width: 100%;
  }
}

/* 5. Tablet horizontal / laptop chico (~992px) */
@media (min-width: 992px) {
  .intro-section {
    padding: 8rem 3rem 4rem;
  }
  
  .intro-content {
    max-width: 800px;
  }
  
  .intro-badge {
    padding: 0.6rem 1.8rem;
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
  }
  
  .intro-title {
    font-size: clamp(2.75rem, 4vw, 4rem);
    margin-bottom: 2rem;
  }
  
  .intro-subtitle {
    font-size: clamp(1.15rem, 2vw, 1.55rem);
    margin-bottom: 2rem;
    max-width: 750px;
  }
  
  .intro-stats {
    gap: 2.5rem;
    padding: 2rem 2rem;
    margin-top: 3.25rem;
  }
  
  .intro-stat {
    transition: transform 0.3s ease;
    min-height: 120px;
    padding: 1.25rem 1rem;
  }
  
  .intro-stat:hover {
    transform: translateY(-5px);
  }
  
  .intro-stat-number {
    font-size: clamp(1.8rem, 3.5vw, 2.2rem);
    margin-bottom: 0.6rem;
  }
  
  .intro-stat-label {
    font-size: 0.825rem;
    line-height: 1.9;
    max-width: 100%;
    letter-spacing: 0.09em;
  }
}

/* 6. Desktop estándar (~1200px) */
@media (min-width: 1200px) {
  .intro-section {
    min-height: 100vh;
    padding: 8rem 3rem 4rem;
  }
  
  .intro-content {
    max-width: 900px;
  }
  
  .intro-badge {
    padding: 0.6rem 1.8rem;
    margin-bottom: 1.5rem;
  }
  
  .intro-title {
    font-size: clamp(3rem, 3.5vw, 4.5rem);
    margin-bottom: 2rem;
  }
  
  .intro-subtitle {
    font-size: clamp(1.15rem, 1.8vw, 1.6rem);
    margin-bottom: 2rem;
    max-width: 750px;
  }
  
  .intro-stats {
    gap: 3rem;
    padding: 1.75rem 2rem;
    margin-top: 3.5rem;
  }
  
  .intro-stat {
    min-height: 110px;
    padding: 1.25rem 1rem;
  }
  
  .intro-stat-number {
    font-size: clamp(1.9rem, 3vw, 2.3rem);
    margin-bottom: 0.5rem;
  }
  
  .intro-stat-label {
    line-height: 1.95;
    max-width: 100%;
    font-size: 0.85rem;
  }
}

/* 7. Desktop grande / wide (~1400px) */
@media (min-width: 1400px) {
  .intro-section {
    padding: 8rem 3rem 4rem;
  }
  
  .intro-content {
    max-width: 950px;
  }
  
  .intro-title {
    font-size: 4.5rem;
    margin-bottom: 2rem;
  }
  
  .intro-subtitle {
    font-size: 1.6rem;
    line-height: 1.8;
    max-width: 800px;
  }
  
  .intro-stats {
    gap: 3rem;
    padding: 1.75rem 2rem;
  }
  
  .intro-stat {
    min-height: 110px;
    padding: 1.25rem 1rem;
  }
  
  .intro-stat-number {
    font-size: 2.4rem;
    margin-bottom: 0.5rem;
  }
  
  .intro-stat-label {
    font-size: 0.9rem;
    line-height: 2;
    max-width: 100%;
  }
}