/* ======================================
   ROOT VARIABLES
====================================== */

:root {
  --smoke-intensity: 1.0;
  --ember-glow-green: rgba(120, 255, 180, 0.8);
  --ember-glow-gold: rgba(255, 215, 120, 0.8);
  --ember-glow-blue: rgba(120, 200, 255, 0.8);
}

/* ======================================
   GLOBAL STYLES
====================================== */

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

.main-header {
  height: 90%;
  position: relative;
  z-index: 5;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.5);
}

/* LIGHT MODE */

[data-bs-theme="light"] .main-header, html[data-bs-theme="auto"][data-theme-mode="light"] .main-header {
  background-image: url("../../assets/img/NJLB_Background1.png");
}

/* DARK MODE */

[data-bs-theme="dark"] .main-header, html[data-bs-theme="auto"][data-theme-mode="dark"] .main-header {
  background-image: url("../../assets/img/NJLB_Background2.png");
}

/* FALLBACK FOR AUTO MODE BASED ON SYSTEM PREFERENCE */

@media (prefers-color-scheme: light) {
  html:not([data-bs-theme]), html[data-bs-theme="auto"] .main-header {
    background-image: url("../../assets/img/NJLB_Background1.png");
  }
}

@media (prefers-color-scheme: dark) {
  html:not([data-bs-theme]), html[data-bs-theme="auto"] .main-header {
    background-image: url("../../assets/img/NJLB_Background2.png");
  }
}

/* ======================================
   SMOKE BACKGROUND SYSTEM
====================================== */

.smoke-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: transparent;
  isolation: isolate;
}

.puff {
  position: absolute;
  width: 280px;
  height: 280px;
  background: none !important;
  mix-blend-mode: screen;
  will-change: transform, opacity;
  transform-origin: center center;
  offset-path: var(--path);
  transform: scale(var(--scaleFrom));
  opacity: var(--opacStart);
  display: flex;
  align-items: center;
  justify-content: center;
}

.puff .puff-img {
  width: 100%;
  height: 100%;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  filter: drop-shadow(0 0 8px rgba(var(--baseColor, 90,255,165), 0.3)) drop-shadow(0 0 12px rgba(var(--baseColor, 90,255,165), 0.2));
}

/* Fix puff rotation for certain types */

.puff.fix-rotation .puff-img {
  transform: rotate(90deg);
}

/* Blur layers by depth */

.depth-far .puff-img {
  filter: blur(8px) drop-shadow(0 0 6px rgba(var(--baseColor, 90,255,165), 0.15));
}

.depth-mid .puff-img {
  filter: blur(6px) drop-shadow(0 0 8px rgba(var(--baseColor, 90,255,165), 0.25));
}

.depth-near .puff-img {
  filter: blur(4px) drop-shadow(0 0 10px rgba(var(--baseColor, 90,255,165), 0.3));
}

.depth-wisp .puff-img {
  filter: blur(10px) drop-shadow(0 0 6px rgba(var(--baseColor, 90,255,165), 0.2));
}

/* Smoke animations */

@keyframes moveSmoke {
  0% {
    offset-distance: 0%;
  }
  100% {
    offset-distance: 100%;
  }
}

@keyframes transformSmoke {
  0% {
    transform: scale(var(--scaleFrom));
    opacity: var(--opacStart);
  }
  50% {
    transform: scale(var(--scaleMid));
    opacity: var(--opacMid);
  }
  100% {
    transform: scale(var(--scaleTo));
    opacity: 0;
  }
}

@keyframes transformSmokeWithSpin {
  0% {
    transform: scale(var(--scaleFrom)) rotate(0deg);
    opacity: var(--opacStart);
  }
  50% {
    transform: scale(var(--scaleMid)) rotate(-180deg);
    opacity: var(--opacMid);
  }
  100% {
    transform: scale(var(--scaleTo)) rotate(-360deg);
    opacity: 0;
  }
}

/* ======================================
   FOG OVERLAY SYSTEM
====================================== */

.fog-system {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

.fog-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(200, 255, 220, 0.05), transparent 70%);
  animation: drift 60s infinite linear;
  mix-blend-mode: screen;
  will-change: transform;
}

.haze-backdrop {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(20, 30, 20, 0.02), rgba(30, 50, 40, 0.03));
  z-index: -999;
}

@keyframes drift {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(20px, -10px);
  }
  50% {
    transform: translate(0, -20px);
  }
  75% {
    transform: translate(-20px, -10px);
  }
  100% {
    transform: translate(0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fog-overlay {
    animation: none !important;
  }
}