/* ==========================================================================
   DESIGN TOKENS - IAINSANE PORTFOLIO
   ========================================================================== */

:root {
  /* Fondos oscuros premium */
  --ia-bg:          #0a0e1a;   /* Azul noche casi negro */
  --ia-bg-soft:     #121829;   /* Gris/azul profundo */
  --ia-surface:     #1a2236;   /* Superficie de cards */

  /* Acentos tecnológicos */
  --ia-cyan:        #22d3ee;
  --ia-blue:        #3b82f6;
  --ia-violet:      #8b5cf6;
  --ia-magenta:     #d946ef;   /* Uso controlado */

  /* Texto */
  --ia-text:        #f1f5f9;
  --ia-text-soft:   #cbd5e1;
  --ia-text-mut:    #94a3b8;

  /* Gradientes */
  --ia-grad-primary: linear-gradient(135deg, var(--ia-cyan), var(--ia-violet));
  --ia-grad-hero:    linear-gradient(135deg, #3b82f6, #8b5cf6, #22d3ee);
  --ia-grad-card:    linear-gradient(180deg, rgba(26, 34, 54, 0.8) 0%, rgba(18, 24, 41, 0.8) 100%);

  /* Glassmorphism y sombras */
  --ia-glass-bg:     rgba(26, 34, 54, 0.45);
  --ia-glass-border: rgba(139, 92, 246, 0.15);
  --ia-shadow:       0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --ia-radius:       16px;
  --ia-transition:   all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   GLOBAL RESET & TYPOGRAPHY
   ========================================================================== */

html, body {
  background-color: var(--ia-bg);
  color: var(--ia-text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

h1, h2, h3, h4, h5, h6, .display-font {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: var(--ia-text);
  letter-spacing: -0.02em;
}

p {
  color: var(--ia-text-soft);
  font-size: 1rem;
  line-height: 1.6;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--ia-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--ia-surface);
  border-radius: 5px;
  border: 2px solid var(--ia-bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--ia-violet);
}

/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* Navbar Glassmorphism */
.ia-navbar {
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid var(--ia-glass-border);
  transition: var(--ia-transition);
}

.ia-navbar .navbar-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  background: var(--ia-grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ia-navbar .nav-link {
  color: var(--ia-text-soft);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 1rem !important;
  transition: var(--ia-transition);
}

.ia-navbar .nav-link:hover,
.ia-navbar .nav-link.active {
  color: var(--ia-cyan) !important;
  text-shadow: 0 0 10px rgba(34, 211, 238, 0.4);
}

/* Botones Premium */
.ia-btn-primary {
  background: var(--ia-grad-primary);
  color: var(--ia-bg) !important;
  font-weight: 600;
  border: none;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(34, 211, 238, 0.3);
  transition: var(--ia-transition);
}

.ia-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
  color: var(--ia-text) !important;
}

.ia-btn-secondary {
  background: transparent;
  color: var(--ia-text) !important;
  font-weight: 600;
  border: 1px solid var(--ia-glass-border);
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  backdrop-filter: blur(5px);
  transition: var(--ia-transition);
}

.ia-btn-secondary:hover {
  transform: translateY(-2px);
  border-color: var(--ia-cyan);
  background: rgba(34, 211, 238, 0.05);
}

/* Cards Interactivas */
.ia-card {
  background: var(--ia-grad-card);
  border: 1px solid var(--ia-glass-border);
  border-radius: var(--ia-radius);
  box-shadow: var(--ia-shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 2rem;
  transition: var(--ia-transition);
}

.ia-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, 0.4);
  box-shadow: 0 12px 40px rgba(34, 211, 238, 0.15);
}

/* Títulos y textos con gradiente */
.gradient-text {
  background: var(--ia-grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-hero {
  background: var(--ia-grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Secciones */
.ia-section {
  padding: 5rem 0;
}

.ia-section-alt {
  background-color: var(--ia-bg-soft);
  padding: 5rem 0;
  border-top: 1px solid var(--ia-glass-border);
  border-bottom: 1px solid var(--ia-glass-border);
}

/* Footer Estilizado */
.ia-footer {
  background-color: var(--ia-bg);
  border-top: 1px solid var(--ia-glass-border);
  padding: 3rem 0;
  color: var(--ia-text-mut);
}

.ia-footer a {
  color: var(--ia-text-soft);
  text-decoration: none;
  transition: var(--ia-transition);
}

.ia-footer a:hover {
  color: var(--ia-cyan);
}

/* Accessibility: High contrast focus visible styles */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--ia-cyan) !important;
  outline-offset: 3px !important;
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.25) !important;
}

/* ==========================================================================
   PROJECT CARDS & IMAGES STYLE EXTENSIONS
   ========================================================================== */

/* Tarjetas de proyecto con soporte de imagen completa */
.ia-card.project-card {
  padding: 0 !important;
  overflow: hidden;
}

.project-card-image-wrapper {
  height: 200px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--ia-glass-border);
  background-color: var(--ia-bg-soft);
}

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

.ia-card.project-card:hover .project-card-image {
  transform: scale(1.05);
}

.project-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

/* Botones de acción con iconos */
.btn-with-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

/* Imagen destacada en la página de detalle */
.project-detail-image-wrapper {
  border-radius: var(--ia-radius);
  border: 1px solid var(--ia-glass-border);
  box-shadow: var(--ia-shadow);
  overflow: hidden;
  background-color: var(--ia-bg-soft);
  margin-bottom: 2rem;
}

.project-detail-img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  display: block;
}