OKLCH Radial Gradient Device

HTML

<div class="device-container">
        <div class="device-frame">
            <div class="screen"></div>
            <div class="nav-line"></div>
        </div>
        <div class="power-button"></div>
        <div class="volume-up"></div>
        <div class="volume-down"></div>
    </div>

CSS

.screen {
  background: radial-gradient(
    ellipse 200% 100% at 46% 0%,
    oklch(0 0.07 279) 66%,
    oklch(0.98 0.09 276) 99%
  );
}

.screen {
  position: absolute;
  inset: 0;
  border-radius: 33px;
  overflow: hidden;
}

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

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #1a1a2e 0%, #0f0f1e 100%);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: 40px 20px;
}

.device-container {
  position: relative;
  width: 100%;
  max-width: 400px;
  aspect-ratio: 9/19.5;
  background: #1a1a1a;
  border-radius: 45px;
  padding: 12px;
  box-shadow:
    0 50px 100px -20px rgba(0, 0, 0, 0.5),
    0 30px 60px -30px rgba(0, 0, 0, 0.6),
    inset 0 -2px 6px 0 rgba(255, 255, 255, 0.1);
}

.device-frame {
  position: relative;
  width: 100%;
  height: 100%;
  background: #000;
  border-radius: 33px;
  overflow: hidden;
  box-shadow:
    inset 0 0 2px 1px rgba(255, 255, 255, 0.1),
    inset 0 0 0 1px rgba(0, 0, 0, 0.5);
}

/* Navigation line at bottom */
.nav-line {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: rgba(0, 0, 0, 0.8);
  border-radius: 2px;
  z-index: 10;
  transition: width 0.3s ease;
}

.device-container:hover .nav-line {
  width: 140px;
  background: rgba(0, 0, 0, 0.9);
}

/* Optional: Add a subtle reflection */
.screen::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 60%,
    rgba(255, 255, 255, 0.02) 100%
  );
  border-radius: 33px;
  pointer-events: none;
}

/* Side buttons */
.power-button {
  position: absolute;
  right: -3px;
  top: 180px;
  width: 4px;
  height: 80px;
  background: #2a2a2a;
  border-radius: 0 4px 4px 0;
 ...