/* sandbox.css — 실습 터미널 UI */

.sb-wrap {
  margin: 32px 0;
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 14px;
  background: linear-gradient(180deg, #0a0e1a 0%, #060912 100%);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.sb-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: #0d1220;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.sb-title { display: flex; align-items: center; gap: 8px; }
.sb-dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.sb-dot.r { background: #ff5f56; }
.sb-dot.y { background: #ffbd2e; }
.sb-dot.g { background: #27c93f; }
.sb-titletxt { margin-left: 8px; color: #9aa5b8; font-size: 13px; font-weight: 600; }

.sb-actions { display: flex; gap: 6px; }
.sb-btn {
  background: rgba(255, 255, 255, 0.05);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}
.sb-btn:hover { background: rgba(0, 212, 255, 0.12); border-color: rgba(0, 212, 255, 0.35); color: #e0f2ff; }
.sb-btn.primary { background: rgba(0, 212, 255, 0.15); border-color: rgba(0, 212, 255, 0.45); color: #00d4ff; }

.sb-body {
  padding: 14px 18px;
  font-family: 'JetBrains Mono', 'D2Coding', Consolas, monospace;
  font-size: 13px;
  line-height: 1.55;
  color: #d6e1f0;
  min-height: 340px;
  max-height: 520px;
  overflow-y: auto;
  cursor: text;
}
.sb-output { white-space: normal; }
.sb-ln { margin-top: 4px; }
.sb-p { color: #4ade80; font-weight: 700; }
.sb-c { color: #fafafa; }

.sb-o {
  white-space: pre-wrap;
  word-break: break-word;
  margin: 4px 0 10px 0;
  color: #bcd0ea;
  font-family: inherit;
  font-size: 13px;
  background: transparent;
  padding: 0;
  border: 0;
}
.sb-o.err { color: #ff6b6b; }
.sb-o.ok { color: #4ade80; }
.sb-o.info { color: #00d4ff; }
.sb-o.task { color: #e2b714; }
.sb-o.banner { color: #9aa5b8; border-left: 3px solid #00d4ff; padding-left: 10px; }

.sb-line { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.sb-prompt { color: #4ade80; font-weight: 700; }
.sb-input {
  flex: 1;
  background: transparent;
  border: 0;
  outline: 0;
  color: #fafafa;
  font-family: inherit;
  font-size: 13px;
  caret-color: #00d4ff;
}

.sb-challenge {
  padding: 12px 16px;
  background: rgba(226, 183, 20, 0.06);
  border-top: 1px solid rgba(226, 183, 20, 0.2);
}
.sb-ch-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.sb-ch-label { color: #e2b714; font-weight: 700; font-size: 13px; }
.sb-ch-title { color: #e0e7ef; font-size: 13px; flex: 1; }
.sb-ch-status { font-size: 12px; color: #9aa5b8; padding: 2px 8px; border-radius: 6px; background: rgba(255,255,255,0.05); }
.sb-ch-status.ok { color: #4ade80; background: rgba(74, 222, 128, 0.1); }
.sb-ch-status.run { color: #00d4ff; background: rgba(0, 212, 255, 0.1); }
.sb-ch-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.sb-ch-hint {
  margin-top: 10px;
  padding: 8px 12px;
  background: rgba(0, 212, 255, 0.08);
  border-left: 3px solid #00d4ff;
  border-radius: 4px;
  color: #bcd0ea;
  font-size: 12.5px;
}

.sb-links {
  padding: 14px 16px;
  background: rgba(123, 47, 247, 0.05);
  border-top: 1px solid rgba(123, 47, 247, 0.2);
}
.sb-links-title { color: #bfa6ff; font-weight: 700; font-size: 13px; margin-bottom: 10px; }
.sb-links-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.sb-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(123, 47, 247, 0.25);
  border-radius: 8px;
  text-decoration: none;
  color: #e0e7ef;
  transition: all 0.15s;
}
.sb-link:hover { background: rgba(123, 47, 247, 0.12); border-color: rgba(123, 47, 247, 0.5); transform: translateY(-1px); }
.sb-link strong { color: #cfbaff; font-size: 13px; }
.sb-link span { color: #9aa5b8; font-size: 12px; }

@media (max-width: 640px) {
  .sb-body { font-size: 12px; padding: 12px; min-height: 280px; }
  .sb-links-grid { grid-template-columns: 1fr; }
}