:root {
  --primary: #FFD700;
  --secondary: #FF4500;
  --bg-dark: #0a0a0a;
  --text-white: #ffffff;
  --accent: #00f2ff;
  --font-display: 'Impact', 'Arial Black', sans-serif;
  --font-body: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-white);
  font-family: var(--font-body);
  overflow: hidden;
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.thumbnail-container {
  width: 100%;
  height: 100%;
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  overflow: hidden;
  background: black;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

/* Hover effects for interactive feel */
.panel:hover img {
  transform: scale(1.05);
}

/* Overlaying the text */
.text-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  text-align: center;
  width: 90%;
  pointer-events: none;
}

.heading-main {
  font-family: var(--font-display);
  font-size: 12vw;
  text-transform: uppercase;
  color: var(--primary);
  text-shadow: 
    0 0 20px rgba(0, 0, 0, 0.8),
    5px 5px 0px var(--secondary),
    -2px -2px 0px #000;
  line-height: 0.9;
  letter-spacing: -2px;
  animation: pulse 2s infinite ease-in-out;
}

.subheading {
  font-family: var(--font-display);
  font-size: 6vw;
  color: #fff;
  text-shadow: 2px 2px 10px rgba(0,0,0,0.8);
  margin-top: -10px;
}

.badge-85 {
  background: var(--secondary);
  color: white;
  padding: 10px 30px;
  font-family: var(--font-display);
  font-size: 4vw;
  display: inline-block;
  transform: rotate(-5deg);
  box-shadow: 5px 5px 15px rgba(0,0,0,0.5);
  margin-bottom: 20px;
}

/* Visual Enhancements */
.vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, transparent 40%, rgba(0,0,0,0.8) 100%);
  z-index: 5;
  pointer-events: none;
}

.glow-line {
  position: absolute;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
  height: 4px;
  width: 100%;
  z-index: 6;
  filter: blur(2px);
  animation: sweep 3s infinite linear;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.05); filter: brightness(1.2); }
}

@keyframes sweep {
  0% { top: -5%; opacity: 0; }
  50% { opacity: 1; }
  100% { top: 105%; opacity: 0; }
}

/* YouTube Shorts specific styling (vertical focus) */
@media (max-width: 600px) {
  .thumbnail-container {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 1fr);
  }
  .heading-main {
    font-size: 20vw;
  }
  .subheading {
    font-size: 10vw;
  }
  .badge-85 {
    font-size: 8vw;
  }
}