/*-----------------------------------*\
  # ABOUT SECTION - DISEÑO MODERNO
\*-----------------------------------*/

.about {
  position: relative;
  overflow: hidden;
}

.about::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 30%,
      rgba(1, 211, 210, 0.03) 0%,
      transparent 40%
    ),
    radial-gradient(
      circle at 80% 70%,
      rgba(157, 107, 238, 0.03) 0%,
      transparent 40%
    );
  z-index: 0;
  pointer-events: none;
}

.about-container {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: var(--spacing-12);
  align-items: start;
  position: relative;
  z-index: 1;
}

/*-----------------------------------*\
  # COLUMNA IZQUIERDA - PROFILE CARD
\*-----------------------------------*/

.about-left-column {
  position: sticky;
  top: 100px;
}

.profile-card {
  background: var(--color-bg-secondary);
  border-radius: var(--rounded-2xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(1, 164, 247, 0.1);
  position: relative;
  overflow: hidden;
  margin-bottom: var(--spacing-6);
}

.profile-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(1, 164, 247, 0.03),
    rgba(157, 107, 238, 0.03)
  );
  z-index: 0;
}

.profile-image-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  margin-bottom: var(--spacing-6);
  z-index: 1;
}

.profile-halo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110%;
  height: 110%;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(1, 164, 247, 0.2) 0%,
    transparent 70%
  );
  animation: pulseHalo 3s ease-in-out infinite;
  z-index: 0;
}

@keyframes pulseHalo {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 0.8;
  }
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--color-cyan-600);
  box-shadow: 0 10px 30px rgba(1, 164, 247, 0.3);
  position: relative;
  z-index: 1;
  transition: all 0.5s ease;
}

.profile-card:hover .profile-img {
  transform: scale(1.05);
  border-color: var(--color-teal-600);
  box-shadow: 0 15px 40px rgba(1, 164, 247, 0.4);
}

.experience-badge {
  position: absolute;
  bottom: -25px;
  right: -25px;
  width: 110px;
  height: 110px;
  background: linear-gradient(
    145deg,
    var(--color-purple-500),
    var(--color-purple-700)
  );
  border-radius: var(--rounded-full);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  box-shadow: var(--shadow-md), 0 0 15px rgba(157, 107, 238, 0.4);
  transform: rotate(-5deg);
  transition: all 0.3s ease;
  z-index: 2;
}

.about-image:hover .experience-badge {
  transform: rotate(0deg) scale(1.1);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(157, 107, 238, 0.6);
}

.experience-badge::before {
  content: "";
  position: absolute;
  top: 5px;
  left: 5px;
  right: 5px;
  bottom: 5px;
  border: 2px dashed rgba(255, 255, 255, 0.5);
  border-radius: var(--rounded-full);
  animation: spin 20s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.experience-years {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  line-height: 1;
  margin-top: 5px;
  position: relative;
}

.experience-years::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.7);
}

.experience-text {
  font-size: var(--text-xs);
  text-align: center;
  line-height: 1.2;
  margin-top: 5px;
}

.about-heading {
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-6);
  color: var(--color-text-primary);
  position: relative;
  display: inline-block;
}

.about-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 50px;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--color-cyan-600),
    var(--color-purple-500)
  );
  border-radius: var(--rounded-full);
}

.profile-quick-info {
  text-align: center;
  position: relative;
  z-index: 1;
}

.profile-name {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--spacing-2);
  background: linear-gradient(
    to right,
    var(--color-text-primary),
    var(--color-cyan-400)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.profile-role {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  color: var(--color-cyan-600);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  margin-bottom: var(--spacing-6);
}

.profile-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid rgba(1, 164, 247, 0.1);
}

.profile-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.profile-stat .stat-value {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-cyan-600);
}

.profile-stat .stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  text-align: center;
}

/*-----------------------------------*\
  # TECH STACK CARD
\*-----------------------------------*/

.tech-stack-card {
  background: var(--color-bg-secondary);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(1, 164, 247, 0.1);
  margin-bottom: var(--spacing-6);
}

.tech-stack-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
}

.tech-stack-header i {
  font-size: 1.5rem;
  color: var(--color-cyan-600);
}

.tech-stack-header h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

.tech-stack-wrapper {
  position: relative;
  overflow: hidden;
  padding: var(--spacing-3) 0;
  mask-image: linear-gradient(
    to right,
    transparent,
    black 10%,
    black 90%,
    transparent
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent,
    black 10%,
    black 90%,
    transparent
  );
}

.tech-stack-track {
  display: flex;
  gap: var(--spacing-3);
  animation: scrollTech 25s linear infinite;
}

.tech-stack-card:hover .tech-stack-track {
  animation-play-state: paused;
}

@keyframes scrollTech {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-2);
  min-width: 60px;
  padding: var(--spacing-2);
  background: rgba(1, 164, 247, 0.05);
  border-radius: var(--rounded-lg);
  transition: all 0.3s ease;
  cursor: pointer;
}

.tech-item:hover {
  background: rgba(1, 164, 247, 0.1);
  transform: translateY(-5px);
}

.tech-item i {
  font-size: 2rem;
  color: var(--tech-color, var(--color-cyan-600));
  transition: all 0.3s ease;
}

.tech-item:hover i {
  transform: scale(1.1);
}

.tech-item span {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-tertiary);
  white-space: nowrap;
}

/*-----------------------------------*\
  # CERTIFICATIONS CARD
\*-----------------------------------*/

.certifications-card {
  background: var(--color-bg-secondary);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(1, 164, 247, 0.1);
}

.certifications-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.certifications-header i {
  font-size: 1.5rem;
  color: var(--color-cyan-600);
  margin-right: var(--spacing-2);
}

.certifications-header h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin: 0;
  flex: 1;
}

.view-all-certs {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(1, 164, 247, 0.1);
  color: var(--color-cyan-600);
  padding: 6px var(--spacing-3);
  border-radius: var(--rounded-md);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  transition: all 0.3s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.view-all-certs:hover {
  background: rgba(1, 164, 247, 0.2);
  border-color: var(--color-cyan-600);
  transform: translateY(-2px);
}

.certifications-preview {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.cert-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3);
  background: rgba(1, 164, 247, 0.03);
  border-radius: var(--rounded-lg);
  transition: all 0.3s ease;
}

.cert-item:hover {
  background: rgba(1, 164, 247, 0.08);
  transform: translateX(5px);
}

.cert-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--rounded-lg);
  background: var(--color-bg-secondary);
  color: var(--color-cyan-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.cert-gold {
  background: linear-gradient(135deg, var(--color-yellow-500), var(--color-yellow-300));
  color: var(--color-text-yellow-900);
}
.cert-purple {
  background: linear-gradient(
    135deg,
    var(--color-purple-700),
    var(--color-purple-500)
  );
  color: var(--color-text-primary);
}
.cert-silver {
  background: linear-gradient(135deg, var(--color-gray-400), var(--color-gray-200));
  color: var(--color-text-primary);
}

.cert-blue {
  background: linear-gradient(
    135deg,
    var(--color-cyan-600),
    var(--color-cyan-400)
  );
  color: var(--color-text-primary);
}

.cert-info h5 {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin: 0 0 4px 0;
}

.cert-info p {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin: 0;
}

/*-----------------------------------*\
  # COLUMNA DERECHA - CONTENT
\*-----------------------------------*/

.about-right-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.about-intro {
  background: var(--color-bg-secondary);
  border-radius: var(--rounded-2xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(1, 164, 247, 0.1);
  position: relative;
  overflow: hidden;
}

.about-intro::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 200px;
  height: 200px;
  background: radial-gradient(
    circle,
    rgba(1, 164, 247, 0.1) 0%,
    transparent 70%
  );
  z-index: 0;
}

.intro-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  background: rgba(1, 164, 247, 0.1);
  color: var(--color-cyan-600);
  padding: 6px var(--spacing-3);
  border-radius: var(--rounded-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-4);
}

.intro-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-4);
  color: var(--color-text-primary);
  position: relative;
  z-index: 1;
}

.intro-text {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-4);
  position: relative;
  z-index: 1;
}

.intro-text:last-child {
  margin-bottom: 0;
}

.intro-text strong {
  color: var(--color-cyan-600);
  font-weight: var(--font-semibold);
}

/*-----------------------------------*\
  # TIMELINE TABS
\*-----------------------------------*/

.timeline-tabs {
  display: flex;
  gap: var(--spacing-3);
  background: var(--color-bg-secondary);
  padding: var(--spacing-2);
  border-radius: var(--rounded-xl);
  box-shadow: var(--shadow-sm);
}

.timeline-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-4);
  background: transparent;
  border-radius: var(--rounded-lg);
  color: var(--color-text-tertiary);
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
}

.timeline-tab i {
  font-size: 1.2rem;
  transition: all 0.3s ease;
}

.timeline-tab:hover {
  color: var(--color-cyan-600);
  background: rgba(1, 164, 247, 0.05);
}

.timeline-tab.active {
  background: linear-gradient(
    135deg,
    var(--color-cyan-600),
    var(--color-teal-600)
  );
  color: var(--color-text-primary);
  box-shadow: 0 4px 15px rgba(1, 164, 247, 0.3);
  border-color: transparent;
}

.timeline-tab.active i {
  transform: scale(1.1);
}

/*-----------------------------------*\
  # TIMELINE CONTENT
\*-----------------------------------*/

.timeline-content-wrapper {
  display: none;
  animation: fadeIn 0.5s ease;
}

.timeline-content-wrapper.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.timeline-modern {
  position: relative;
  padding-left: var(--spacing-8);
}

.timeline-modern::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(
    to bottom,
    var(--color-cyan-600),
    var(--color-purple-500)
  );
  border-radius: var(--rounded-full);
  opacity: 0.3;
}

.timeline-modern-item {
  position: relative;
  margin-bottom: var(--spacing-8);
  opacity: 1;
  transform: translateX(0);
  transition: all 0.5s ease;
}

.timeline-modern-item.hidden-item {
  display: none;
}

.timeline-modern-dot {
  position: absolute;
  left: -42px;
  top: 12px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-bg-primary);
  border: 4px solid var(--color-teal-800);
  box-shadow: 0 0 0 4px var(--color-bg-secondary),
    0 0 15px rgba(1, 164, 247, 0.3);
  z-index: 2;
  transition: all 0.3s ease;
}

.timeline-modern-item:hover .timeline-modern-dot {
  transform: scale(1.3);
  border-color: var(--color-cyan-600);
  box-shadow: 0 0 0 8px rgba(1, 164, 247, 0.1), 0 0 20px rgba(1, 164, 247, 0.5);
}

.timeline-modern-card {
  background: var(--color-bg-secondary);
  border-radius: var(--rounded-xl);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(1, 164, 247, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.timeline-modern-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--color-cyan-600);
  transition: height 0.5s ease;
}

.timeline-modern-item:hover .timeline-modern-card::before {
  height: 100%;
}

.timeline-modern-item:hover .timeline-modern-card {
  transform: translateX(10px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(1, 164, 247, 0.15);
}

.timeline-modern-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-cyan-600);
  background: rgba(1, 164, 247, 0.1);
  padding: 4px var(--spacing-3);
  border-radius: var(--rounded-md);
  margin-bottom: var(--spacing-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.timeline-modern-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-3);
  line-height: 1.3;
}

.timeline-modern-desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-4);
}

.timeline-modern-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.timeline-modern-tags .tag {
  background: rgba(1, 164, 247, 0.1);
  color: var(--color-cyan-600);
  padding: 4px var(--spacing-3);
  border-radius: var(--rounded-md);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border: 1px solid rgba(1, 164, 247, 0.2);
  transition: all 0.3s ease;
}

.timeline-modern-tags .tag:hover {
  background: rgba(1, 164, 247, 0.2);
  border-color: var(--color-cyan-600);
  transform: translateY(-2px);
}

/*-----------------------------------*\
  # SHOW MORE BUTTON
\*-----------------------------------*/

.show-more-timeline {
  width: 100%;
  margin-top: var(--spacing-4);
  padding: var(--spacing-3) var(--spacing-6);
  background: rgba(1, 164, 247, 0.1);
  border: 2px solid rgba(1, 164, 247, 0.2);
  border-radius: var(--rounded-lg);
  color: var(--color-cyan-600);
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.show-more-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--color-cyan-600),
    var(--color-teal-600)
  );
  transition: left 0.4s ease;
  z-index: -1;
}

.show-more-timeline:hover {
  color: var(--color-text-primary);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(1, 164, 247, 0.3);
}

.show-more-timeline:hover::before {
  left: 0;
}

.show-more-timeline i {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}

.show-more-timeline.expanded i {
  transform: rotate(180deg);
}

/*-----------------------------------*\
  # MODAL DE CERTIFICACIONES
\*-----------------------------------*/

.certs-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 19, 51, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  padding: var(--spacing-4);
}

.certs-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.certs-modal {
  background: var(--color-bg-primary);
  border-radius: var(--rounded-2xl);
  max-width: 1000px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(1, 164, 247, 0.3);
  border: 1px solid rgba(1, 164, 247, 0.2);
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: all 0.3s ease;
}

.certs-modal-overlay.active .certs-modal {
  transform: scale(1) translateY(0);
}

.certs-modal-close {
  position: absolute;
  top: var(--spacing-4);
  right: var(--spacing-4);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(1, 164, 247, 0.1);
  color: var(--color-cyan-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
}

.certs-modal-close:hover {
  background: var(--color-cyan-600);
  color: var(--color-text-primary);
  transform: rotate(90deg);
}

.certs-modal-header {
  padding: var(--spacing-8);
  text-align: center;
  border-bottom: 1px solid rgba(1, 164, 247, 0.1);
}

.certs-modal-header h3 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--spacing-2);
  background: linear-gradient(
    to right,
    var(--color-text-primary),
    var(--color-cyan-400)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.certs-modal-header p {
  color: var(--color-text-tertiary);
}

.certs-modal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-6);
  padding: var(--spacing-8);
}

.cert-modal-card {
  background: var(--color-bg-secondary);
  border-radius: var(--rounded-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(1, 164, 247, 0.1);
  transition: all 0.3s ease;
}

.cert-modal-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl), 0 0 20px rgba(1, 164, 247, 0.2);
}

.cert-modal-image {
  position: relative;
  height: 160px;
  overflow: hidden;
}

.cert-modal-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.cert-modal-card:hover .cert-modal-image img {
  transform: scale(1.1);
}

.cert-modal-badge {
  position: absolute;
  top: 25px;
  right: -30px;
  padding: 4px 40px;
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  transform: rotate(45deg);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.cert-modal-badge.cert-gold {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: var(--color-text-primary);
}

.cert-modal-badge.cert-purple {
  background: linear-gradient(135deg, #9b59b6, #8e44ad);
  color: var(--color-text-primary);
}

.cert-modal-badge.cert-silver {
  background: linear-gradient(135deg, #c0c0c0, #e8e8e8);
  color: var(--color-text-primary);
}
.cert-modal-badge.cert-blue {
  background: linear-gradient(
    135deg,
    var(--color-cyan-600),
    var(--color-cyan-400)
  );
  color: var(--color-text-primary);
}
.cert-modal-badge.cert-purple {
  background: linear-gradient(
    135deg,
    var(--color-purple-500),
    var(--color-purple-600)
  );
  color: var(--color-text-primary);
}
.cert-modal-badge.cert-green {
  background: linear-gradient(135deg, #4caf50, #66bb6a);
  color: var(--color-text-primary);
}
.cert-modal-badge.cert-bronze {
  background: linear-gradient(135deg, #cd7f32, #e89b5f);
  color: var(--color-text-primary);
}

.cert-modal-info {
  padding: var(--spacing-4);
}

.cert-modal-info h4 {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.cert-modal-issuer {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-2);
}

.cert-modal-date {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-xs);
  color: var(--color-purple-500);
  font-weight: var(--font-medium);
}

/*-----------------------------------*\
  # RESPONSIVE - MOBILE FIRST
\*-----------------------------------*/

/* Tablets grandes (768px - 991px) */
@media (max-width: 991px) {
  .about-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
  }

  .profile-image-container {
    width: 50%;
    aspect-ratio: 1;
    margin: 0 auto var(--spacing-6) auto;
  }

  .profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--color-cyan-600);
    box-shadow: 0 10px 30px rgba(1, 164, 247, 0.3);
    position: relative;
    z-index: 1;
    transition: all 0.5s ease;
  }

  .about-left-column {
    position: relative;
    top: 0;
    max-width: 690px;
    margin: 0 auto;
  }

  .timeline-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .timeline-tab {
    flex-shrink: 0;
  }

  .timeline-modern {
    padding-left: var(--spacing-6);
  }

  .timeline-modern-dot {
    left: -38px;
    width: 16px;
    height: 16px;
  }

  .certs-modal-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-4);
    padding: var(--spacing-6);
  }
}

/* Tablets (576px - 767px) */
@media (max-width: 767px) {
  .about-left-column {
    position: relative;
    top: 0;
    max-width: 550px;
    margin: 0 auto;
  }

  .profile-card {
    padding: var(--spacing-6);
  }

  .profile-name {
    font-size: var(--text-xl);
  }

  .profile-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-3);
  }

  .tech-stack-card,
  .certifications-card {
    padding: var(--spacing-5);
  }

  .about-intro {
    padding: var(--spacing-6);
  }

  .intro-title {
    font-size: var(--text-2xl);
  }

  .intro-text {
    font-size: var(--text-sm);
  }

  .timeline-modern-card {
    padding: var(--spacing-5);
  }

  .timeline-modern-title {
    font-size: var(--text-lg);
  }

  .timeline-modern-desc {
    font-size: var(--text-xs);
  }

  .certs-modal-grid {
    grid-template-columns: 1fr;
    padding: var(--spacing-5);
  }

  .certs-modal-header {
    padding: var(--spacing-6);
  }
}

/* Móviles (380px - 575px) */
@media (max-width: 575px) {
  .about-container {
    gap: var(--spacing-6);
  }

  .about-left-column {
    position: relative;
    top: 0;
    max-width: 390px;
    margin: 0 auto;
  }

  .profile-card {
    padding: var(--spacing-5);
  }

  .profile-image-container {
    margin-bottom: var(--spacing-5);
  }

  .experience-badge {
    bottom: 5px;
    right: 5px;
    padding: var(--spacing-2) var(--spacing-3);
    min-width: 70px;
  }

  .experience-icon {
    font-size: 1.2rem;
  }

  .experience-years {
    font-size: var(--text-xl);
  }

  .experience-text {
    font-size: 0.65rem;
  }

  .profile-name {
    font-size: var(--text-lg);
  }

  .profile-role {
    font-size: var(--text-sm);
  }

  .profile-stats {
    gap: var(--spacing-2);
  }

  .profile-stat .stat-value {
    font-size: var(--text-lg);
  }

  .profile-stat .stat-label {
    font-size: 0.65rem;
  }

  .tech-stack-card,
  .certifications-card {
    padding: var(--spacing-4);
  }

  .tech-stack-header h4,
  .certifications-header h4 {
    font-size: var(--text-base);
  }

  .tech-item {
    min-width: 50px;
  }

  .tech-item i {
    font-size: 1.5rem;
  }

  .cert-item {
    padding: var(--spacing-2);
  }

  .cert-icon {
    width: 35px;
    height: 35px;
    font-size: 1.2rem;
  }

  .cert-info h5 {
    font-size: var(--text-xs);
  }

  .cert-info p {
    font-size: 0.65rem;
  }

  .about-intro {
    padding: var(--spacing-5);
  }

  .intro-badge {
    font-size: 0.65rem;
    padding: 4px 10px;
  }

  .intro-title {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-3);
  }

  .intro-text {
    font-size: var(--text-xs);
    line-height: 1.6;
    margin-bottom: var(--spacing-3);
  }

  .timeline-tabs {
    padding: var(--spacing-1);
    gap: var(--spacing-2);
  }

  .timeline-tab {
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--text-xs);
  }

  .timeline-tab i {
    font-size: 1rem;
  }

  .timeline-tab span {
    display: none;
  }

  .timeline-modern {
    padding-left: var(--spacing-5);
  }

  .timeline-modern::before {
    width: 2px;
  }

  .timeline-modern-item {
    margin-bottom: var(--spacing-6);
  }

  .timeline-modern-dot {
    left: -34px;
    width: 14px;
    height: 14px;
    border-width: 3px;
  }

  .timeline-modern-card {
    padding: var(--spacing-4);
  }

  .timeline-modern-card::before {
    width: 3px;
  }

  .timeline-modern-date {
    font-size: 0.65rem;
    padding: 3px 8px;
  }

  .timeline-modern-date i {
    font-size: 0.75rem;
  }

  .timeline-modern-title {
    font-size: var(--text-base);
    margin-bottom: var(--spacing-2);
  }

  .timeline-modern-desc {
    font-size: 0.75rem;
    line-height: 1.5;
    margin-bottom: var(--spacing-3);
  }

  .timeline-modern-tags {
    gap: 6px;
  }

  .timeline-modern-tags .tag {
    font-size: 0.65rem;
    padding: 3px 8px;
  }

  .show-more-timeline {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--text-xs);
  }

  .show-more-timeline i {
    font-size: 1.2rem;
  }

  .certs-modal {
    max-height: 85vh;
    border-radius: var(--rounded-xl);
  }

  .certs-modal-close {
    width: 35px;
    height: 35px;
    font-size: 1.3rem;
  }

  .certs-modal-header {
    padding: var(--spacing-5);
  }

  .certs-modal-header h3 {
    font-size: var(--text-xl);
  }

  .certs-modal-header p {
    font-size: var(--text-xs);
  }

  .certs-modal-grid {
    padding: var(--spacing-4);
  }

  .cert-modal-card {
    border-radius: var(--rounded-lg);
  }

  .cert-modal-image {
    height: 140px;
  }

  .cert-modal-badge {
    font-size: 0.6rem;
    padding: 3px 35px;
  }

  .cert-modal-info {
    padding: var(--spacing-3);
  }

  .cert-modal-info h4 {
    font-size: var(--text-sm);
  }

  .cert-modal-issuer {
    font-size: var(--text-xs);
  }

  .cert-modal-date {
    font-size: 0.65rem;
  }
}

/* Móviles pequeños (max-width: 380px) */
@media (max-width: 380px) {
  .about-left-column {
    position: relative;
    top: 0;
    max-width: 280px;
    margin: 0 auto;
  }

  .profile-card {
    padding: var(--spacing-4);
  }

  .experience-badge {
    min-width: 50px;
    padding: 8px 10px;
  }

  .experience-icon {
    font-size: 1rem;
  }

  .experience-years {
    font-size: var(--text-lg);
  }

  .experience-text {
    font-size: 0.6rem;
  }

  .profile-name {
    font-size: var(--text-base);
  }

  .profile-role {
    font-size: var(--text-xs);
  }

  .profile-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-1);
  }

  .profile-stat .stat-value {
    font-size: var(--text-base);
  }

  .profile-stat .stat-label {
    font-size: 0.6rem;
  }

  .tech-stack-card,
  .certifications-card {
    padding: var(--spacing-3);
  }

  .tech-item {
    min-width: 45px;
    padding: 6px;
  }

  .tech-item i {
    font-size: 1.3rem;
  }

  .cert-icon {
    width: 30px;
    height: 30px;
    font-size: 1rem;
  }

  .intro-title {
    font-size: var(--text-lg);
  }

  .timeline-tab {
    padding: 8px 10px;
  }

  .timeline-modern-dot {
    left: -32px;
    width: 12px;
    height: 12px;
    border-width: 2px;
  }

  .timeline-modern-card {
    padding: var(--spacing-3);
  }

  .timeline-modern-title {
    font-size: var(--text-sm);
  }

  .timeline-modern-desc {
    font-size: 0.7rem;
  }

  .certs-modal-header h3 {
    font-size: var(--text-lg);
  }
}

/*-----------------------------------*\
  # ANIMACIONES Y EFECTOS
\*-----------------------------------*/

/* Animación de entrada suave */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

/* Smooth scrolling dentro del modal */
.certs-modal {
  scroll-behavior: smooth;
}

.certs-modal::-webkit-scrollbar {
  width: 8px;
}

.certs-modal::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
  border-radius: var(--rounded-full);
}

.certs-modal::-webkit-scrollbar-thumb {
  background: var(--color-cyan-600);
  border-radius: var(--rounded-full);
}

.certs-modal::-webkit-scrollbar-thumb:hover {
  background: var(--color-teal-600);
}

/* Animación del timeline cuando aparece en vista */
.timeline-modern-item {
  animation: slideInFromLeft 0.6s ease forwards;
  animation-play-state: paused;
}

.timeline-content-wrapper.active .timeline-modern-item {
  animation-play-state: running;
}

.timeline-modern-item:nth-child(1) {
  animation-delay: 0.1s;
}
.timeline-modern-item:nth-child(2) {
  animation-delay: 0.2s;
}
.timeline-modern-item:nth-child(3) {
  animation-delay: 0.3s;
}
.timeline-modern-item:nth-child(4) {
  animation-delay: 0.4s;
}
.timeline-modern-item:nth-child(5) {
  animation-delay: 0.5s;
}

@keyframes slideInFromLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Hover effects mejorados */
.profile-img {
  position: relative;
}

.profile-img::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    rgba(1, 164, 247, 0.2),
    rgba(157, 107, 238, 0.2)
  );
  opacity: 0;
  transition: opacity 0.5s ease;
}

.profile-card:hover .profile-img::after {
  opacity: 1;
}

/* Loading state para imágenes */
.cert-modal-image img,
.profile-img {
  background: linear-gradient(
    90deg,
    rgba(1, 164, 247, 0.1) 25%,
    rgba(1, 164, 247, 0.2) 50%,
    rgba(1, 164, 247, 0.1) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.cert-modal-image img[src],
.profile-img[src] {
  animation: none;
  background: none;
}

/* Transición suave para cambio de tabs */
.timeline-content-wrapper {
  transition: all 0.3s ease;
}

/* Efecto de glassmorphism en algunos elementos */
.profile-card,
.tech-stack-card,
.certifications-card,
.about-intro {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* Dark mode optimizations */
@media (prefers-color-scheme: dark) {
  .profile-halo {
    opacity: 0.7;
  }

  .experience-badge {
    box-shadow: 0 8px 20px rgba(157, 107, 238, 0.5);
  }

  .timeline-modern-card {
    box-shadow: var(--shadow-md), 0 0 10px rgba(1, 164, 247, 0.1);
  }
}