*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: #0a0e17; color: #e6edf3; font-family: system-ui, sans-serif; }

/* Allow scroll on launcher page */
html { overflow-y: auto; }
body.emu-running { overflow: hidden; }

.screen { display: none; }
.screen.active { display: flex; flex-direction: column; }

#launcher {
  padding: 24px;
  min-height: 100vh;
  overflow-y: auto;
}
.top { text-align: center; margin-bottom: 20px; }
.top h1 { font-size: 2rem; }
.top h1 span { color: #58a6ff; }
.top p { color: #8b949e; margin-top: 6px; }

.toolbar {
  display: flex; gap: 12px; max-width: 900px; margin: 0 auto 20px; flex-wrap: wrap;
}
.toolbar input {
  flex: 1; min-width: 200px; padding: 12px 16px; border-radius: 8px;
  border: 1px solid #30363d; background: #161b22; color: #fff;
}
.upload-btn {
  padding: 12px 18px; background: #238636; color: #fff; border-radius: 8px;
  font-weight: 600; cursor: pointer; white-space: nowrap;
}
.upload-btn:hover { background: #2ea043; }

.os-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px; max-width: 1200px; margin: 0 auto;
  padding-bottom: 48px;
}
.os-card {
  text-align: left; padding: 18px; border-radius: 12px;
  background: #161b22; border: 1px solid #30363d; color: inherit;
  display: flex; flex-direction: column; gap: 6px;
  transition: border-color 0.15s, transform 0.15s;
}
.os-card:hover {
  border-color: #58a6ff; transform: translateY(-2px);
}
.os-card .badge {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  background: #1f6feb; color: #fff; padding: 2px 8px; border-radius: 4px; width: fit-content;
}
.os-card .badge-instant { background: #238636; }
.os-card .badge-fast { background: #1f6feb; }
.os-card .badge-slow { background: #6e4a1f; }
.os-card .meta { font-size: 12px; color: #8b949e; }
.os-card .blurb { font-size: 13px; color: #c9d1d9; flex: 1; line-height: 1.4; }
.os-card .boot { font-size: 12px; color: #58a6ff; }

footer {
  text-align: center; padding: 16px; color: #6e7681; font-size: 13px;
}
footer a { color: #58a6ff; }

/* Fullscreen emulator — no black bar */
#emulator.active {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: #000;
}
.emu-bar {
  display: flex; align-items: center; gap: 12px; padding: 8px 12px;
  background: #161b22; border-bottom: 1px solid #30363d; flex-shrink: 0;
  flex-wrap: wrap;
}
#emu-back {
  padding: 8px 14px; background: #21262d; color: #fff; border-radius: 6px;
  border: 1px solid #30363d; cursor: pointer;
}
#emu-back:hover { background: #30363d; }
#emu-title { font-weight: 700; }
#emu-status { font-size: 12px; color: #8b949e; flex: 1; min-width: 120px; }
#emu-hint {
  font-size: 11px; color: #f0883e;
  width: 100%;
  order: 10;
}

#screen_container {
  flex: 1;
  position: relative;
  width: 100%;
  min-height: 0;
  background: #000;
  overflow: hidden;
  outline: none;
  cursor: default;
}
#screen_container:focus { outline: 1px solid #30363d; }
#screen_container canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}