/* ============================================
   TOKENS
   ============================================ */
:root {
  --color-bg: #0B2545;
  --color-navy: #EFF4FF;
  --color-blue: #00BFFF;
  --color-blue-soft: #EFF4FF;
  --color-text: #00BFFF;
  --color-muted: #EFF4FF;
  --color-border: #E2E6EC;

  --font-base: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;

  --max-width: 1100px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;

  --radius: 6px;
}

/* ============================================
   RESET
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md) 0;
}

/* Nombre grande, esquina superior izquierda */
.logo-name {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.main-nav {
  position: relative;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-links a:hover {
  color: var(--color-blue);
  border-bottom-color: var(--color-blue);
}

/* Botón hamburguesa (solo móvil) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: 2px;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md) var(--space-lg);
}

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  margin-bottom: var(--space-sm);
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.03em;
  max-width: 18ch;
  /*margin-bottom: var(--space-md);*/
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-muted);
  max-width: 50ch;
  margin-bottom: var(--space-md);
}

.btn-primary {
  display: inline-block;
  background-color: #0000CD;
  color: #FFFFFF;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.btn-primary:hover {
  background-color: var(--color-blue);
  transform: translateY(-2px);
}

/* ============================================
   SECCIONES GENERALES
   ============================================ */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
  border-top: 1px solid var(--color-border);
}

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.section-text {
  color: var(--color-muted);
  max-width: 65ch;
  font-size: 1rem;
}

/* ============================================
   PROYECTOS
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}

.project-card {
  background-color: #191970;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-sm);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.project-card:hover {
  border-color: var(--color-blue);
  transform: translateY(-4px);
}

.project-thumb {
  width: 100%;
  aspect-ratio: 1901 / 1028;
  background-color: var(--color-blue-soft);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
  overflow: hidden;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;  
  display: block;
}

.project-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: #00BFFF;
  margin-bottom: var(--space-xs);
}

.project-desc {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

.project-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-blue);
}

/* ============================================
   CONTACTO
   ============================================ */
.contact-section .btn-primary {
  margin-top: var(--space-xs);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md);
  color: var(--color-muted);
  font-size: 0.85rem;
  text-align: center;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + var(--space-sm));
    right: 0;
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    flex-direction: column;
    gap: 0;
    min-width: 180px;
    padding: var(--space-xs);
    box-shadow: 0 8px 24px rgba(11, 37, 69, 0.08);

    /* oculto por defecto */
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .nav-links.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: var(--space-xs) var(--space-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}