/* Custom Properties for Light and Dark Themes */
:root {
  --bg-color: #f8fafc;
  --text-color: #0f172a;
  --logo-filter: none;
  --accent-glow: rgba(0, 0, 0, 0.03);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --letter-spacing: 0.18em;
  --transition-speed: 0.3s;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #0b0f19;
    --text-color: #f1f5f9;
    --logo-filter: invert(1) brightness(1.2);
    --accent-glow: rgba(255, 255, 255, 0.05);
  }
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  width: 100%;
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Centered Layout */
.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 2rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* Background Subtle Gradient Glow */
body::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

/* Logo Wrapper */
.logo-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 2rem;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo-wrapper:hover {
  transform: scale(1.04);
}

.logo {
  width: 180px;
  height: auto;
  filter: var(--logo-filter);
  transition: filter var(--transition-speed) ease;
  display: block;
}

/* Name Typography */
.name {
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: var(--letter-spacing);
  text-transform: uppercase;
  color: var(--text-color);
  opacity: 0.9;
  margin: 0;
  user-select: none;
}

/* Responsive Scaling */
@media (min-width: 768px) {
  .logo {
    width: 220px;
  }
  .name {
    font-size: 1.5rem;
  }
}