:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --panel: #121a23;
  --panel-border: #24313d;
  --accent: #35e08a;
  --accent-dim: #1f8a56;
  --danger: #ff5f5f;
  --text: #dbe6ec;
  --text-dim: #7f95a3;
  font-family: 'Consolas', 'Courier New', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

.screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

/* --- Login --- */
.login-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 32px 28px;
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.login-card h1 {
  color: var(--danger);
  letter-spacing: 2px;
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.subtitle { color: var(--text-dim); margin: 0 0 20px; font-size: 0.9rem; }

.login-card label { display: block; text-align: left; margin-bottom: 6px; color: var(--text-dim); font-size: 0.85rem; }

#access-code {
  width: 100%;
  padding: 12px;
  font-size: 1.4rem;
  letter-spacing: 4px;
  text-align: center;
  text-transform: uppercase;
  background: #0b0f14;
  border: 1px solid var(--panel-border);
  color: var(--accent);
  border-radius: 4px;
  margin-bottom: 16px;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  border-radius: 4px;
  padding: 12px 16px;
  background: var(--accent);
  color: #05130a;
  font-weight: bold;
  width: 100%;
}

button:hover { background: #4dfaa3; }

.slot-choice { display: flex; gap: 12px; }
.slot-btn { background: var(--panel-border); color: var(--text); }
.slot-btn:hover { background: var(--accent-dim); color: #05130a; }

.team-name { color: var(--accent); font-weight: bold; font-size: 1.1rem; margin: 0 0 4px; }

.error { color: var(--danger); margin-top: 14px; font-size: 0.85rem; }

/* --- App shell --- */
.topbar {
  display: flex;
  gap: 16px;
  padding: 10px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  font-size: 0.85rem;
  flex-wrap: wrap;
}
.topbar span { color: var(--text-dim); }
.team-tag { color: var(--accent); font-weight: bold; }
.points-tag { margin-left: auto; color: var(--accent); }

.scene { padding: 24px 18px; max-width: 1100px; margin: 0 auto; }
.scene h2 { color: var(--accent); }
.scene-hint { color: var(--text-dim); font-size: 0.85rem; }

/* --- Router minigame --- */
.router-board { display: flex; flex-wrap: wrap; gap: 32px; margin-top: 20px; }

.router-box {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  min-width: 260px;
}

.port {
  border: 2px dashed var(--panel-border);
  border-radius: 6px;
  padding: 16px 8px;
  text-align: center;
  transition: border-color .15s;
}
.port.dragover { border-color: var(--accent); }

.led {
  display: inline-block;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--danger);
  margin-bottom: 8px;
}
.port.connected .led { background: var(--accent); }
.port-label { display: block; font-size: 0.8rem; color: var(--text-dim); }

.cable-tray { display: flex; flex-direction: column; gap: 10px; min-width: 260px; }

.cable-chip {
  background: var(--panel);
  border: 1px solid var(--accent-dim);
  border-radius: 6px;
  padding: 10px 12px;
  cursor: grab;
  font-size: 0.85rem;
}
.cable-chip.placed { opacity: 0.35; cursor: default; border-color: var(--panel-border); }
.cable-context { display: block; color: var(--text-dim); font-size: 0.75rem; margin-top: 4px; }

/* --- Terminal --- */
.terminal-layout { display: flex; gap: 20px; flex-wrap: wrap; margin-top: 16px; }
.terminal-panel { flex: 2; min-width: 320px; }
.assist-panel {
  flex: 1;
  min-width: 260px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 16px;
}
.assist-panel { display: flex; flex-direction: column; gap: 16px; }
.assist-panel h3 { margin-top: 0; color: var(--accent); font-size: 1rem; }

.info-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 16px;
}
.info-card h3 { margin-top: 0; color: var(--accent); font-size: 1rem; }
.status-line { font-size: 0.85rem; margin: 0 0 10px; }

.info-fields { margin: 0; }
.info-fields dt { color: var(--text-dim); font-size: 0.75rem; margin-bottom: 2px; }
.info-fields dd { margin: 0; font-size: 1rem; color: var(--accent); font-weight: bold; }

.field-row { margin-bottom: 12px; }
.field-row label { display: block; color: var(--text-dim); font-size: 0.75rem; margin-bottom: 4px; }
.field-row input {
  width: 100%;
  padding: 8px 10px;
  background: #05090c;
  border: 2px solid var(--panel-border);
  color: var(--text);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.9rem;
}
.field-row input.valid { border-color: var(--accent); color: var(--accent); }
.field-row input.invalid { border-color: var(--danger); color: var(--danger); }

.terminal {
  background: #05090c;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  height: 340px;
  overflow-y: auto;
  padding: 12px;
  font-size: 0.85rem;
  white-space: pre-wrap;
}
.terminal-line { margin-bottom: 10px; }
.terminal-line .cmd { color: var(--accent); }
.terminal-line .out { color: var(--text); }
.terminal-line .out.err { color: var(--danger); }

.terminal-input-row {
  display: flex;
  align-items: center;
  background: #05090c;
  border: 1px solid var(--panel-border);
  border-top: none;
  border-radius: 0 0 6px 6px;
  padding: 8px 12px;
}
.prompt { color: var(--accent); margin-right: 8px; }
#terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
}