/* ============================================
   PORTAFOLIO HAROLD TORIBIO - CSS MODERNO (FINAL)
   ============================================ */

/* Variables CSS - Paleta de Colores */
:root {
  --color-bg-dark: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-accent: #38bdf8;
  --color-accent-dark: #0ea5e9;
  --color-border: #334155;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.875rem;
  --font-size-3xl: 2.25rem;
  --font-size-4xl: 3rem;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.5);
}

/* Reset CSS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--color-bg-dark);
  color: var(--color-text-primary);
  line-height: 1.6;
  font-size: var(--font-size-base);
}

/* Contenedor Principal */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ============================================
   HEADER & NAVEGACIÓN
   ============================================ */

.header {
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.logo {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: -0.5px;
}

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

.nav-menu a {
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: var(--transition);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.nav-menu a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* Menú Hamburguesa */
.menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  gap: 6px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(10px, 10px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   SECCIÓN HERO
   ============================================ */

.hero {
  padding: var(--spacing-2xl) 0;
  text-align: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.hero-content {
  animation: fadeInUp 1s ease-out;
}

/* Nuevo: Estilo para la foto de perfil */
.hero-profile-img img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-accent);
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.3);
  margin-bottom: var(--spacing-md);
  transition: transform 0.3s ease;
}

.hero-profile-img img:hover {
  transform: scale(1.05);
}

.hero-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Botones */
.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid transparent;
  border-radius: 6px;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-bg-dark);
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-secondary:hover {
  background-color: rgba(56, 189, 248, 0.1);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* ============================================
   SECCIONES GENERALES
   ============================================ */

section {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-primary);
  text-align: center;
  position: relative;
  padding-bottom: var(--spacing-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

/* ============================================
   SECCIÓN SOBRE MÍ
   ============================================ */

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

.about-text p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.about-info {
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-lg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.about-info h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.about-info p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.about-info a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
}

.about-info a:hover {
  text-decoration: underline;
  color: var(--color-accent-dark);
}

/* ============================================
   SECCIÓN PROYECTOS (ACTUALIZADO CON IMÁGENES)
   ============================================ */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.project-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  /* Quitamos padding general para que la imagen toque los bordes */
  padding: 0; 
  transition: var(--transition);
  cursor: pointer;
  overflow: hidden; /* Asegura que la imagen respete los bordes redondeados */
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

/* Contenedor de la imagen */
.card-image {
  width: 100%;
  height: 200px; /* Altura fija para uniformidad */
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Recorta la imagen sin deformarla */
  transition: transform 0.5s ease;
}

.project-card:hover .project-img {
  transform: scale(1.05); /* Efecto zoom al pasar el mouse */
}

/* Ajustes de padding para el contenido interno */
.project-header, 
.project-description, 
.project-tech, 
.project-link {
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.project-header {
  margin-top: var(--spacing-md);
}

.project-header h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-xl);
}

.project-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
  flex-grow: 1; /* Hace que las tarjetas tengan altura uniforme */
}

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

.tech-tag {
  background-color: rgba(56, 189, 248, 0.1);
  color: var(--color-accent);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: var(--font-size-sm);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.project-link {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  display: inline-block;
  margin-bottom: var(--spacing-lg);
  margin-top: auto;
}

.project-link:hover {
  color: var(--color-accent-dark);
  transform: translateX(4px);
}

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

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.skill-category {
  background-color: var(--color-bg-secondary);
  padding: var(--spacing-lg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.skill-category h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.skill-list {
  list-style: none;
}

.skill-list li {
  color: var(--color-text-secondary);
  padding: 8px 0;
  padding-left: var(--spacing-sm);
  border-left: 3px solid var(--color-accent);
  margin-bottom: 6px;
  font-size: var(--font-size-sm);
  transition: var(--transition);
}

.skill-list li:hover {
  color: var(--color-accent);
  padding-left: var(--spacing-md);
}

/* ============================================
   SECCIÓN CONTACTO (ACTUALIZADO CON FORMULARIO)
   ============================================ */

.contact {
  text-align: center;
}

.contact-wrapper {
  max-width: 600px;
  margin: 0 auto;
}

.contact-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* Estilos del Formulario */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.form-group input, 
.form-group textarea {
  width: 100%;
  padding: 12px;
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus, 
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

/* Botones Sociales */
.contact-socials {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-btn {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  border: 1px solid var(--color-border);
  padding: 8px 20px;
  border-radius: 20px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.social-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(56, 189, 248, 0.05);
  transform: translateY(-2px);
}

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

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

.footer p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.footer-subtitle {
  margin-top: var(--spacing-sm);
  color: var(--color-accent);
  font-weight: 500;
}

/* ============================================
   ANIMACIONES
   ============================================ */

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

/* ============================================
   RESPONSIVE DESIGN - TABLET
   ============================================ */

@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-xl);
  }

  .hero-buttons {
    gap: var(--spacing-sm);
  }

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

  .about-content {
    grid-template-columns: 1fr;
  }

  .nav-menu {
    gap: var(--spacing-md);
  }

  .nav-menu a {
    font-size: var(--font-size-base);
  }
}

/* ============================================
   RESPONSIVE DESIGN - MÓVIL
   ============================================ */

@media (max-width: 640px) {
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-bg-secondary);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu a {
    padding: var(--spacing-sm);
    border-bottom: none;
    border-left: 3px solid transparent;
    padding-left: var(--spacing-md);
  }

  .nav-menu a:hover {
    border-left-color: var(--color-accent);
    border-bottom: none;
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

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

  .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .hero-description {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
  }

  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .btn {
    width: 100%;
  }

  section {
    padding: var(--spacing-lg) 0;
  }

  .section-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .about-info {
    padding: var(--spacing-md);
  }

  .contact-socials {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .social-btn {
    justify-content: center;
    width: 100%;
  }

  .hidden-element {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Retraso escalonado para las tarjetas (opcional, detalle de lujo) */
.projects-grid .project-card:nth-child(2) { transition-delay: 0.1s; }
.projects-grid .project-card:nth-child(3) { transition-delay: 0.2s; }
}