/* RESETEO Y VARIABLES */
:root {
  --bg-dark: #07090e;
  --bg-card: rgba(15, 20, 32, 0.6);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(59, 130, 246, 0.5);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --accent-blue: #3b82f6;
  --accent-blue-hover: #2563eb;
  --font-family: 'Inter', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  list-style-type: none;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-family);
  overflow-x: hidden;
  /* Fondo con cuadrícula sutil de las imágenes */
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: -1px -1px;
}

/* MENÚ SUPERIOR FIJO */
.top-nav {
  position: fixed;
  top: 15px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 1100px;
  height: 50px;
  background: rgba(10, 14, 23, 0.7);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.code-icon {
  color: var(--accent-blue);
  font-size: 1.3rem;
}

.logo-text b {
  color: var(--text-muted);
}

.top-actions {
  display: flex;
  gap: 10px;
}

.icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--text-muted);
}

/* MENÚ INFERIOR DOCK FIJO (ESTILO MODERNO) */
.bottom-dock {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 1000;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  max-width: 95vw;
}

.dock-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 14px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  white-space: nowrap;
}

.dock-item i {
  font-size: 1.1rem;
}

/* Ocultar texto por defecto cuando no esté activo para ahorrar espacio */
.dock-label {
  display: none;
}

/* ESTADO ACTIVO (Igual al de la imagen) */
.dock-item.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-blue);
}

.dock-item.active .dock-label {
  display: inline-block;
}

/* Puntito indicador azul debajo del elemento activo */
.dock-item.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background-color: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-blue);
}

/* AJUSTES ESPECÍFICOS PARA PANTALLAS MÓVILES (TELÉFONOS) */
@media (max-width: 768px) {
  .bottom-dock {
    bottom: 15px; /* Ligeramente más abajo para no estorbar la pantalla */
    padding: 5px;
    gap: 4px;
    width: auto;
  }

  .dock-item {
    padding: 8px 12px;
    font-size: 0.75rem;
  }

  .dock-item i {
    font-size: 1rem;
  }

  /* Asegura que el menú sea fácil de tocar con el pulgar en móviles */
  .dock-item.active {
    padding: 8px 14px;
  }

  .hero-section, 
  .about-grid, 
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-avatar-wrapper {
    order: -1;
  }

  .avatar-box {
    max-width: 250px;
  }
}

/* SECCIONES EN GENERAL */
.section {
  max-width: 1000px;
  margin: 0 auto;
  padding: 120px 20px 80px 20px;
  min-height: 80vh;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 10px;
  letter-spacing: -1px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* REQUISITO SOLICITADO: HOVER ILUMINACIÓN, TEXTO Y BORDE EN CARTILLAS */
.card-glow {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  transition: var(--transition);
}

.card-glow:hover {
  border-color: var(--border-glow);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.25);
  background: rgba(20, 28, 45, 0.7);
  transform: translateY(-2px);
}

.card-glow:hover h3, 
.card-glow:hover h4,
.card-glow:hover .card-title {
  color: var(--accent-blue);
}

/* SECCIÓN 1: HERO */
.hero-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 40px;
  padding-top: 160px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(34, 197, 94, 0.1);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.2);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.dot {
  width: 6px;
  height: 6px;
  background-color: #4ade80;
  border-radius: 50%;
  box-shadow: 0 0 8px #4ade80;
}

.hero-title {
  font-size: 4rem;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 15px;
}

.text-gradient {
  color: var(--text-muted);
  font-weight: 700;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 15px;
}

.btn {
  padding: 10px 20px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-white {
  background: #ffffff;
  color: #000000;
}

.btn-white:hover {
  background: #e5e7eb;
}

.btn-blue {
  background: var(--accent-blue);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-blue:hover {
  background: var(--accent-blue-hover);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.social-mini-links {
  display: flex;
  gap: 12px;
  margin-left: 10px;
}

.social-mini-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.social-mini-links a:hover {
  color: var(--text-main);
}

/* REQUISITO FOTO IMAGEN 1: BLANCO Y NEGRO -> COLOR Y ZOOM CON HOVER */
.hero-avatar-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
}

.avatar-box {
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #111;
}

.hero-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Estado normal: Blanco y negro */
  filter: grayscale(100%);
  transition: filter 0.5s ease, transform 0.5s ease;
}

/* Hover solicitado */
.hero-avatar-wrapper:hover .hero-avatar {
  filter: grayscale(0%);
  transform: scale(1.08); /* Animación de zoom */
}

/* SECCIÓN 2: ABOUT & TIMELINE */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 60px;
}

.about-bio p {
  line-height: 1.7;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.inline-link {
  color: var(--text-main);
  text-decoration: underline;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.tag {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
}

/* TIMELINE */
.timeline-title {
  text-align: center;
  color: var(--accent-blue);
  letter-spacing: 2px;
  font-size: 0.85rem;
  margin-bottom: 40px;
}

.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  border-left: 1px solid var(--border-color);
  padding-left: 30px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -36px;
  top: 24px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--accent-blue);
  background: var(--bg-dark);
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.read-insight {
  font-size: 0.75rem;
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 700;
}

/* SECCIÓN 3: PROJECTS */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  cursor: pointer;
  font-weight: 600;
}

.tab-btn.active {
  background: #ffffff;
  color: #000000;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.project-card {
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
  margin-bottom: 20px;
  flex-grow: 1;
}

.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.tech-pills span {
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--text-muted);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  padding-top: 15px;
}

.link-btn {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition);
}

.link-btn:hover {
  color: var(--text-main);
}

.live-btn {
  color: var(--accent-blue);
}

.center-btn-container {
  text-align: center;
}

/* SECCIÓN 4: SKILLS */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.category-title {
  color: var(--accent-blue);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 15px;
  display: block;
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
}

.tech-icon {
  font-size: 1rem;
  width: 2rem;
  height: 2rem;
}

/* SECCIÓN 5: CONTACT */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.contact-title {
  font-size: 2.2rem;
  line-height: 1.2;
  margin-bottom: 15px;
}

.highlight-blue {
  color: var(--accent-blue);
}

.contact-desc {
  color: var(--text-muted);
  margin-bottom: 30px;
}

.contact-actions {
  display: flex;
  gap: 15px;
}

.contact-links-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 15px;
  text-decoration: none;
  color: var(--text-main);
  padding: 16px 20px;
}

.contact-icon {
  font-size: 1.2rem;
  color: var(--text-muted);
}

.contact-info {
  display: flex;
  flex-direction: column;
}

.contact-info .label {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 700;
}

.contact-info .val {
  font-size: 0.9rem;
  font-weight: 600;
}

/* RESPONSIVO PARA MÓVILES */
@media (max-width: 768px) {
  .hero-section, 
  .about-grid, 
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .hero-avatar-wrapper {
    order: -1; /* Muestra la imagen arriba en pantallas pequeñas */
  }

  .avatar-box {
    max-width: 260px;
  }

  .section-header h2 {
    font-size: 2.2rem;
  }

  .bottom-dock {
    width: 90%;
    justify-content: space-around;
  }
}