@font-face {
  font-family: 'ClassyVogue';
  src: url('../Classyvogueregular.ttf') format('truetype');
  font-weight: normal; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'NexaHeavy';
  src: url('../Nexa-Heavy.ttf') format('truetype');
  font-weight: normal; font-style: normal; font-display: swap;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: #000; color: #e8e8e8;
  font-family: 'ClassyVogue', Georgia, serif;
  min-height: 100vh; overflow-x: hidden;
}
body.lb-open { overflow: hidden; }

.page { display: none; min-height: 100vh; }
.page.active { display: block; }

/* Progress bar */
.progress-bar {
  position: fixed; top: 0; left: 0; right: 0; height: 2px;
  z-index: 200; pointer-events: none;
  background: rgba(255,255,255,0.06);
}
.progress-fill {
  height: 100%; width: 0%;
  background: rgba(255,255,255,0.55);
  transition: width 0.15s ease;
}

/* Back to top */
.back-top {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(12px);
  z-index: 90; opacity: 0; pointer-events: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
  background: none; border: none; cursor: pointer;
  display: flex; flex-direction: column; align-items: center;
}
.back-top.visible { opacity: 1; pointer-events: all; transform: translateX(-50%) translateY(0); }
.back-top svg {
  width: 28px; height: 28px; stroke: rgba(255,255,255,0.4);
  transition: stroke 0.3s;
  filter: drop-shadow(0 0 6px rgba(255,255,255,0.1));
  animation: floatArrow 2.5s ease-in-out infinite;
}
.back-top:hover svg { stroke: rgba(255,255,255,0.9); }

@keyframes floatArrow {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-5px); }
}

@keyframes fillArc {
  0%   { stroke-dasharray: 0 100; opacity: 0.3; }
  50%  { stroke-dasharray: 75 100; opacity: 1; }
  100% { stroke-dasharray: 100 100; opacity: 0.3; }
}