/* ==========================================================================
   Variables y Configuración Base (Archivo: styles.css)
   ========================================================================== */
:root {
  /* Paleta de colores corporativa */
  --color-primary: #10243A;      /* Azul oscuro */
  --color-secondary: #173653;    /* Azul secundario */
  --color-accent: #2463A6;       /* Azul de acento */
  --color-bg-soft: #F5F8FB;      /* Fondo suave */
  --color-text-main: #182536;    /* Texto principal */
  --color-text-muted: #647386;   /* Texto secundario */
  --color-border: #DCE4EC;       /* Bordes */
  --color-white: #FFFFFF;        /* Blanco */

  /* Tipografías */
  --font-heading: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Espaciado y diseño */
  --container-max: 1120px;
  --header-height: 76px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text-main);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.25;
  font-weight: 700;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Encabezado y Navegación
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
}

.header-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.logo-dot {
  color: var(--color-accent);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-cta {
  padding: 0.55rem 1.15rem;
  background-color: var(--color-primary);
  color: var(--color-white) !important;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition);
}

.nav-cta:hover {
  background-color: var(--color-secondary);
}

/* Botón Menú Móvil */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  position: relative;
  transition: background-color var(--transition);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: transform var(--transition);
}

.hamburger::before {
  top: -7px;
}

.hamburger::after {
  bottom: -7px;
}

/* ==========================================================================
   Sección Inicio (Hero)
   ========================================================================== */
.hero {
  padding: 5.5rem 0 5rem;
  background-color: var(--color-white);
}

.hero-content {
  max-width: 780px;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-accent);
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
}

.hero-name {
  font-size: clamp(2.15rem, 4.5vw, 3.25rem);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 660px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 1px solid var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: var(--color-bg-soft);
}

.hero-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-main);
}

.highlight-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* ==========================================================================
   Estructura General de Secciones
   ========================================================================== */
.section {
  padding: 5rem 0;
}

.section-alt {
  background-color: var(--color-bg-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  max-width: 720px;
  margin-bottom: 3rem;
}

.section-eyebrow {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.section-subtitle {
  margin-top: 0.75rem;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Sección Sobre mí
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  font-size: 1.0625rem;
  color: var(--color-text-main);
  margin-bottom: 1.25rem;
}

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

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pillar-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.pillar-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.pillar-card p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Sección Experiencia Profesional
   ========================================================================== */
.experience-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
}

.experience-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.experience-role {
  font-size: 1.35rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.experience-org {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-accent);
}

.experience-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.meta-tag,
.meta-period {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
}

.meta-tag {
  background-color: var(--color-bg-soft);
  color: var(--color-secondary);
  border: 1px solid var(--color-border);
}

.meta-period {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.functions-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 1rem;
}

.functions-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.functions-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--color-text-main);
}

.functions-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* ==========================================================================
   Sección Tecnologías y Conocimientos
   ========================================================================== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.tech-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: border-color var(--transition);
}

.tech-card:hover {
  border-color: var(--color-accent);
}

.tech-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.tech-icon {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.tech-card h3 {
  font-size: 1.125rem;
  color: var(--color-primary);
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-secondary);
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   Sección Contacto
   ========================================================================== */
.contact-card {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
}

.eyebrow-light {
  color: #8BB8E8;
}

.contact-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--color-white);
  margin-bottom: 1rem;
}

.contact-description {
  font-size: 1.0625rem;
  color: #CBD6E2;
  max-width: 600px;
  margin-bottom: 2.5rem;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 720px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--color-secondary);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), background-color var(--transition);
}

.contact-item:hover {
  border-color: #8BB8E8;
  background-color: #1D4366;
}

.contact-icon {
  width: 24px;
  height: 24px;
  color: #8BB8E8;
  flex-shrink: 0;
}

.contact-item-text {
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-white);
}

.contact-value {
  font-size: 0.875rem;
  color: #CBD6E2;
}

/* ==========================================================================
   Pie de Página
   ========================================================================== */
.footer {
  padding: 2rem 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-role {
  font-weight: 500;
  color: var(--color-primary);
}

/* ==========================================================================
   Diseño Adaptable (Responsive)
   ========================================================================== */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    display: none;
  }

  .nav.open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .nav-cta {
    display: inline-block;
    width: 100%;
    text-align: center;
  }

  .hero {
    padding: 3.5rem 0;
  }

  .section {
    padding: 3.5rem 0;
  }

  .experience-card {
    padding: 1.5rem;
  }

  .contact-card {
    padding: 2rem 1.5rem;
  }

  .contact-links {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .tech-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}