/* ==========================================================================
   Material Design 3 & Bento Grid Stylesheet (AdaptiveUI-Flow)
   ========================================================================== */

:root {
  /* MD3 Light Palette Core Tokens (with Fallback #6750A4) */
  --md-sys-color-primary: #6750A4;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #EADDFF;
  --md-sys-color-on-primary-container: #21005D;
  --md-sys-color-surface: #FEF7FF;
  --md-sys-color-on-surface: #1D1B20;
  --md-sys-color-surface-variant: #E7E0EC;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-outline: #79747E;
  --md-sys-color-outline-variant: #CAC4D0;
  --md-sys-color-background: #FEF7FF;
  --md-sys-color-on-background: #1D1B20;
  --md-sys-color-error: #B3261E;
  
  /* Layout densities & spacing */
  --md-spacing-xs: 4px;
  --md-spacing-sm: 8px;
  --md-spacing-md: 16px;
  --md-spacing-lg: 24px;
  --md-spacing-xl: 32px;
  
  /* Elevaciones MD3 */
  --md-elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --md-elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.30);
  --md-elevation-3: 0px 4px 8px 3px rgba(0, 0, 0, 0.15), 0px 1px 3px 0px rgba(0, 0, 0, 0.30);
  
  /* Curvas de Animación Estándar MD3 (Easing) */
  --md-transition-duration-short: 150ms;
  --md-transition-duration-medium: 250ms;
  --md-transition-duration-long: 400ms;
  --md-transition-easing-linear: cubic-bezier(0, 0, 1, 1);
  --md-transition-easing-standard: cubic-bezier(0.2, 0, 0, 1.0); /* Emphasized */
  --md-transition-easing-decelerated: cubic-bezier(0, 0, 0.2, 1);
  --md-transition-easing-accelerated: cubic-bezier(0.4, 0, 1, 1);
  
  /* Antigravity Dynamic variables (Updated via JS) */
  --gravity-offset-x: 0px;
  --gravity-offset-y: 0px;
  --gravity-rotate-x: 0deg;
  --gravity-rotate-y: 0deg;
  --gravity-scale: 1;
  --gravity-shadow-blur: 10px;
}

/* Soporte para Dark Mode Automático */
@media (prefers-color-scheme: dark) {
  :root {
    --md-sys-color-primary: #D0BCFF;
    --md-sys-color-on-primary: #381E72;
    --md-sys-color-primary-container: #4F378B;
    --md-sys-color-on-primary-container: #EADDFF;
    --md-sys-color-surface: #141218;
    --md-sys-color-on-surface: #E6E1E5;
    --md-sys-color-surface-variant: #49454F;
    --md-sys-color-on-surface-variant: #CAC4D0;
    --md-sys-color-outline: #938F99;
    --md-sys-color-outline-variant: #49454F;
    --md-sys-color-background: #141218;
    --md-sys-color-on-background: #E6E1E5;
    --md-sys-color-error: #F2B8B5;
  }
}

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

body {
  font-family: 'Outfit', 'Roboto', 'Inter', system-ui, sans-serif;
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-background);
  overflow-x: hidden;
  transition: background-color var(--md-transition-duration-medium) var(--md-transition-easing-standard);
}

/* ==========================================================================
   Navigation Drawer - Material Design 3
   ========================================================================== */
.navigation-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 360px;
  max-width: 85vw;
  background-color: var(--md-sys-color-surface);
  border-radius: 0 16px 16px 0;
  box-shadow: var(--md-elevation-3);
  z-index: 1000;
  transform: translateX(-100%);
  transition: transform var(--md-transition-duration-long) var(--md-transition-easing-standard);
  display: flex;
  flex-direction: column;
  padding: var(--md-spacing-lg);
}

.navigation-drawer.open {
  transform: translateX(0);
}

.navigation-drawer .drawer-header {
  margin-bottom: var(--md-spacing-lg);
}

.navigation-drawer .drawer-title {
  font-size: 24px;
  font-weight: 500;
  color: var(--md-sys-color-on-surface);
}

.navigation-drawer .drawer-items {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--md-spacing-sm);
}

.navigation-drawer .drawer-item {
  display: flex;
  align-items: center;
  padding: var(--md-spacing-md) var(--md-spacing-lg);
  border-radius: 100px;
  cursor: pointer;
  color: var(--md-sys-color-on-surface-variant);
  transition: background-color var(--md-transition-duration-short) var(--md-transition-easing-standard),
              color var(--md-transition-duration-short) var(--md-transition-easing-standard);
  font-weight: 500;
}

.navigation-drawer .drawer-item.active {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

.navigation-drawer .drawer-item:hover:not(.active) {
  background-color: var(--md-sys-color-surface-variant);
}

/* Overlay para el Drawer */
.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--md-transition-duration-long) var(--md-transition-easing-standard);
}

.drawer-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   Bento Grid Layout
   ========================================================================== */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--md-spacing-lg);
  padding: var(--md-spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

@media (min-width: 900px) {
  .bento-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .bento-colspan-2 {
    grid-column: span 2;
  }
  
  .bento-colspan-3 {
    grid-column: span 3;
  }
  
  .bento-rowspan-2 {
    grid-row: span 2;
  }
}

/* Bento Card con Efectos de Física (Antigravity) */
.bento-card {
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 28px; /* Esquinas súper suaves estilo M3 */
  padding: var(--md-spacing-lg);
  box-shadow: var(--md-elevation-1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 200px;
  position: relative;
  overflow: hidden;
  
  /* Habilita aceleración de hardware para transformaciones fluidas */
  will-change: transform, box-shadow;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  
  /* Transición por defecto suave de retorno */
  transition: transform var(--md-transition-duration-medium) var(--md-transition-easing-decelerated),
              box-shadow var(--md-transition-duration-medium) var(--md-transition-easing-decelerated),
              background-color var(--md-transition-duration-medium) var(--md-transition-easing-standard);
}

/* Estado de interacción - inyectado y calculado vía JS */
.bento-card.antigravity-active {
  transition: transform 80ms linear, box-shadow 80ms linear; /* Animación ultra-sensible al cursor */
  transform: translate3d(var(--gravity-offset-x), var(--gravity-offset-y), 20px)
             rotateX(var(--gravity-rotate-x))
             rotateY(var(--gravity-rotate-y))
             scale(var(--gravity-scale));
  box-shadow: 0px calc(10px + var(--gravity-offset-y)) var(--gravity-shadow-blur) 4px rgba(0, 0, 0, 0.12);
  border-color: var(--md-sys-color-primary);
  z-index: 10;
}

/* Asegurar accesibilidad (reducción de movimiento) */
@media (prefers-reduced-motion: reduce) {
  .bento-card, .navigation-drawer, .drawer-overlay {
    transition: none !important;
    transform: none !important;
  }
  .bento-card.antigravity-active {
    transform: none !important;
    box-shadow: var(--md-elevation-1) !important;
  }
}