/* ========================================
   NAVEGACIÓN PRINCIPAL
   ======================================== */

.main-nav {
  position: sticky;
  top: 0;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  gap: var(--spacing-lg);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  transition: transform var(--transition-fast);
}

.nav-logo:hover {
  transform: translateX(-4px);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transform: translateX(-50%);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
}

.nav-link:hover::after {
  width: 80%;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.hamburger-line {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  color: var(--color-text-primary);
}

.theme-toggle:hover {
  background: var(--color-surface-elevated);
  border-color: var(--color-border-hover);
  transform: rotate(15deg);
  box-shadow: var(--shadow-md);
}

/* Mejor contraste en modo oscuro */
[data-theme="dark"] .theme-toggle {
  background: var(--color-surface-elevated);
  border-color: var(--color-border-hover);
}

[data-theme="dark"] .theme-toggle:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.theme-icon {
  position: absolute;
  transition: all var(--transition-base);
}

/* En modo light: mostrar sol */
[data-theme="light"] .sun-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .moon-icon {
  opacity: 0;
  transform: rotate(180deg) scale(0);
}

/* En modo dark: mostrar luna */
[data-theme="dark"] .sun-icon {
  opacity: 0;
  transform: rotate(-180deg) scale(0);
}

[data-theme="dark"] .moon-icon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* ========================================
   PÁGINA DE SELECCIÓN
   ======================================== */

.selector-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.selector-header {
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  text-align: center;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(34, 197, 94, 0.05) 100%);
}

.main-title {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
}

.selector-main {
  flex: 1;
  padding: var(--spacing-3xl) 0;
}

.selector-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.selector-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  border: 2px solid transparent;
}

.selector-card:hover,
.selector-card:focus {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.card-image-wrapper {
  width: 100%;
  height: 280px;
  overflow: hidden;
  position: relative;
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.selector-card:hover .card-image {
  transform: scale(1.1);
}

.card-content {
  padding: var(--spacing-xl);
  text-align: center;
}

.card-name {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.card-role {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.card-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.card-hover-effect {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(34, 197, 94, 0.1));
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.selector-card:hover .card-hover-effect {
  opacity: 1;
}

.selector-info {
  max-width: 700px;
  margin: var(--spacing-2xl) auto 0;
  text-align: center;
}

.info-text {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-sm);
}

.info-icon {
  flex-shrink: 0;
  color: var(--color-primary);
}

.selector-footer {
  padding: var(--spacing-xl) 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

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

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl) 0;
  position: relative;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.03) 0%, rgba(34, 197, 94, 0.03) 100%);
}

.hero-container {
  position: relative;
  z-index: 1;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-image-wrapper {
  position: relative;
  max-width: 400px;
  margin: 0 auto;
}

.hero-image {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 2;
}

.hero-image-border {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 100%;
  height: 100%;
  border: 3px solid var(--color-primary);
  border-radius: var(--radius-xl);
  z-index: 1;
  transition: transform var(--transition-base);
}

.hero-image-wrapper:hover .hero-image-border {
  transform: translate(10px, 10px);
}

.hero-title {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-size: var(--font-size-2xl);
  color: var(--color-text-secondary);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.hero-social {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-surface-elevated);
  color: var(--color-text-secondary);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.social-link:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-tertiary);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 10px); }
}

/* ========================================
   TIMELINE (Educación y Experiencia)
   ======================================== */

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: var(--spacing-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-2xl);
  padding-left: var(--spacing-2xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -9px;
  top: 0;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 3px solid var(--color-surface);
  box-shadow: 0 0 0 4px var(--color-background);
}

.timeline-content {
  background: var(--color-surface);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.timeline-content:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-lg);
}

.timeline-title {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.timeline-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.timeline-period {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.timeline-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.timeline-achievements {
  list-style: none;
  padding-left: 0;
}

.timeline-achievements li {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  position: relative;
  color: var(--color-text-secondary);
}

.timeline-achievements li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
}

/* ========================================
   HABILIDADES
   ======================================== */

.habilidades-section {
  background: var(--color-surface);
}

.habilidades-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-3xl);
}

.skill-item {
  margin-bottom: var(--spacing-lg);
}

.skill-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.skill-name {
  font-weight: 600;
  color: var(--color-text-primary);
}

.skill-level {
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.skill-bar {
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0;
}

.skill-item.animate .skill-progress {
  width: var(--skill-width, 0%);
}

.soft-skills-list {
  list-style: none;
  display: grid;
  gap: var(--spacing-md);
}

.soft-skills-list li {
  padding: var(--spacing-md);
  background: var(--color-background);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  color: var(--color-text-primary);
  font-weight: 500;
  transition: all var(--transition-base);
}

.soft-skills-list li:hover {
  transform: translateX(8px);
  background: var(--color-surface-elevated);
}

/* ========================================
   IDIOMAS
   ======================================== */

.idiomas-section {
  background: var(--color-surface);
}

.idiomas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.idioma-card {
  background: var(--color-background);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.idioma-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.idioma-name {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.idioma-level {
  color: var(--color-primary);
  font-weight: 500;
  font-size: var(--font-size-lg);
}

/* ========================================
   PROYECTOS
   ======================================== */

.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-2xl);
}

.proyecto-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  border: 2px solid transparent;
}

.proyecto-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-primary);
}

.proyecto-image-wrapper {
  width: 100%;
  height: 240px;
  overflow: hidden;
  position: relative;
}

.proyecto-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.proyecto-card:hover .proyecto-image {
  transform: scale(1.1);
}

.proyecto-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--color-accent);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  box-shadow: var(--shadow-md);
}

.proyecto-content {
  padding: var(--spacing-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.proyecto-title {
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
}

.proyecto-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.proyecto-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.tech-tag {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-background);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.proyecto-actions {
  display: flex;
  gap: var(--spacing-md);
}

.proyecto-actions .btn {
  flex: 1;
  font-size: var(--font-size-sm);
  padding: var(--spacing-sm) var(--spacing-md);
}

/* ========================================
   CONTACTO
   ======================================== */

.contacto-section {
  background: var(--color-surface);
}

.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.contacto-info {
  position: sticky;
  top: 100px;
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-background);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-base);
}

.contact-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  flex-shrink: 0;
  color: var(--color-primary);
}

.contacto-form {
  background: var(--color-background);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-surface);
  transition: all var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-error {
  display: block;
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
  min-height: 20px;
}

.btn-submit {
  width: 100%;
  position: relative;
}

.btn-loading {
  display: none;
}

.btn-submit.loading .btn-text {
  display: none;
}

.btn-submit.loading .btn-loading {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.spinner {
  animation: spin 1s linear infinite;
}

.form-success {
  display: none;
  padding: var(--spacing-lg);
  background: rgba(34, 197, 94, 0.1);
  border: 2px solid var(--color-success);
  border-radius: var(--radius-md);
  color: var(--color-success);
  margin-top: var(--spacing-md);
  align-items: center;
  gap: var(--spacing-md);
}

.form-success.show {
  display: flex;
}

/* ========================================
   MODAL
   ======================================== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal[hidden] {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  animation: fadeIn var(--transition-base);
}

.modal-content {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: slideUp var(--transition-base);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-background);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  z-index: 1;
}

.modal-close:hover {
  background: var(--color-error);
  color: white;
  transform: rotate(90deg);
}

.modal-body {
  padding: var(--spacing-2xl);
}

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

.main-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

.footer-content {
  color: var(--color-text-secondary);
}

.footer-subtitle {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}