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

:root {
  --green: #33ff33;
  --green-dim: #0a5e0a;
  --green-glow: #22cc22;
  --bg: #0a0a0a;
  --panel: #1a1a1a;
  --panel-light: #2a2a2a;
  --bezel: #222;
  --bezel-inner: #111;
  --text: #c0c0c0;
  --text-dim: #666;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  min-height: 100vh;
  overflow-x: hidden;
}

#app {
  max-width: 960px;
  margin: 0 auto;
  padding: 10px;
}

#title-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 0 8px;
}

#title-bar h1 {
  font-family: 'VT323', monospace;
  font-size: 28px;
  color: var(--green);
  text-shadow: 0 0 10px var(--green-dim), 0 0 20px rgba(51,255,51,0.3);
  letter-spacing: 2px;
}

.badge {
  font-size: 11px;
  background: var(--panel-light);
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--green);
  border: 1px solid var(--green-dim);
}

#control-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--panel);
  border-radius: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.ctrl-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  padding: 6px 14px;
  border: 1px solid #444;
  border-radius: 4px;
  background: var(--panel-light);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
}
.ctrl-btn:hover { background: #3a3a3a; border-color: var(--green-dim); }
.ctrl-btn:active { transform: translateY(1px); }

#power-btn.on { color: var(--green); border-color: var(--green-dim); box-shadow: 0 0 8px var(--green-dim); }
#power-btn.off { color: #f44; border-color: #622; }

.ctrl-group { display: flex; align-items: center; gap: 6px; }
.ctrl-group label { font-size: 11px; color: var(--text-dim); }
.ctrl-group select {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  background: var(--panel-light);
  color: var(--text);
  border: 1px solid #444;
  border-radius: 3px;
  padding: 3px 6px;
}

#speed-indicator {
  margin-left: auto;
  display: flex;
  gap: 12px;
  font-size: 11px;
  color: var(--text-dim);
}
#status-text { font-weight: 700; }

#crt-bezel {
  background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 50%, #0f0f0f 100%);
  border-radius: 18px;
  padding: 20px;
  margin-bottom: 10px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.05);
  border: 2px solid #333;
}

#crt-inner {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 0 40px rgba(51,255,51,0.08), inset 0 0 60px rgba(0,0,0,0.5);
}

#screen {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#scanlines {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 1px,
    rgba(0,0,0,0.15) 1px,
    rgba(0,0,0,0.15) 2px
  );
  pointer-events: none;
}

#keyboard-container {
  background: var(--panel);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
}

#keyboard {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kb-row {
  display: flex;
  gap: 3px;
  justify-content: center;
}

.kb-key {
  font-family: 'VT323', monospace;
  font-size: 13px;
  min-width: 36px;
  height: 32px;
  background: #333;
  color: #ddd;
  border: 1px solid #555;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  transition: all 0.08s;
  padding: 0 4px;
  text-align: center;
  line-height: 1.1;
}
.kb-key:hover { background: #444; }
.kb-key:active, .kb-key.pressed { background: #555; transform: translateY(1px); box-shadow: inset 0 1px 3px rgba(0,0,0,0.5); }
.kb-key.wide { min-width: 60px; }
.kb-key.wider { min-width: 80px; }
.kb-key.space { min-width: 200px; }
.kb-key.numpad { background: #2a2a2a; border-color: #4a4a4a; }
.kb-key.separator { width: 10px; min-width: 10px; background: transparent; border: none; cursor: default; }

#peripheral-panel {
  background: var(--panel);
  border-radius: 8px;
  margin-bottom: 10px;
  overflow: hidden;
}

#tab-bar {
  display: flex;
  overflow-x: auto;
  background: #151515;
  border-bottom: 1px solid #333;
}

.tab {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  padding: 8px 14px;
  background: transparent;
  color: var(--text-dim);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--green); border-bottom-color: var(--green); }

#tab-content { padding: 14px; }

.tab-pane { display: none; }
.tab-pane.active { display: block; }

.tab-desc { font-size: 12px; color: var(--text-dim); margin-bottom: 12px; }

.rom-slot {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid #222;
  font-size: 11px;
  flex-wrap: wrap;
}
.rom-slot .rom-name { color: var(--green); min-width: 250px; font-family: 'VT323', monospace; font-size: 14px; }
.rom-slot .rom-addr { color: var(--text-dim); min-width: 120px; }
.rom-slot .rom-status { width: 12px; height: 12px; border-radius: 50%; background: #444; display: inline-block; flex-shrink: 0; }
.rom-slot .rom-status.loaded { background: var(--green); box-shadow: 0 0 6px var(--green-dim); }
.rom-slot .rom-status.error { background: #f44; }

.file-btn {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  padding: 6px 14px;
  background: var(--panel-light);
  color: var(--text);
  border: 1px solid #444;
  border-radius: 4px;
  cursor: pointer;
  margin: 4px 0;
}
.file-btn:hover { border-color: var(--green-dim); }

.rom-actions { margin-top: 10px; }

.drive-config { margin: 8px 0; font-size: 12px; }
.drive-config select {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  background: var(--panel-light);
  color: var(--text);
  border: 1px solid #444;
  border-radius: 3px;
  padding: 2px 4px;
}
.drive-led { width: 10px; height: 10px; border-radius: 50%; background: #333; display: inline-block; }
.drive-led.active { background: var(--green); box-shadow: 0 0 8px var(--green); animation: blink 0.3s infinite; }
@keyframes blink { 50% { opacity: 0.3; } }

#cassette-status, #floppy525-status, #floppy8-status, #harddisk-status {
  font-size: 12px; color: var(--text-dim); margin: 8px 0;
}
#tape-controls { display: flex; gap: 6px; align-items: center; margin-top: 8px; flex-wrap: wrap; }
#tape-counter { font-size: 12px; color: var(--text-dim); }

#prg-info { font-size: 12px; margin: 8px 0; color: var(--text-dim); }
#prg-actions { display: flex; gap: 8px; margin-top: 8px; }

#status-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 12px;
  background: var(--panel);
  border-radius: 6px;
  flex-wrap: wrap;
  font-size: 11px;
}

#cpu-regs { display: flex; gap: 10px; }
#cpu-regs span { color: var(--text-dim); }
#cpu-regs b { color: var(--green); font-family: 'VT323', monospace; font-size: 14px; }

#cpu-flags { display: flex; gap: 3px; }
.flag {
  width: 18px; height: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; font-weight: 700;
  border-radius: 3px;
  background: var(--green);
  color: #000;
  transition: all 0.1s;
}
.flag.dim { background: #333; color: #555; }

#instr-count { color: var(--text-dim); }
#instr-count b { color: var(--green); font-family: 'VT323', monospace; font-size: 14px; }

.remix-link {
  margin-left: auto;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 11px;
}
.remix-link:hover { color: var(--green); }

@media (max-width: 700px) {
  #app { padding: 4px; }
  #title-bar h1 { font-size: 20px; }
  #crt-bezel { padding: 10px; border-radius: 12px; }
  .kb-key { min-width: 26px; height: 26px; font-size: 10px; }
  .kb-key.wide { min-width: 42px; }
  .kb-key.wider { min-width: 56px; }
  .kb-key.space { min-width: 120px; }
  #control-bar { gap: 6px; }
  #status-bar { font-size: 10px; gap: 8px; }
}