/* ===== RESPONSIVE MEDIA & CODE OVERFLOW ===== */
img {
  max-width: 100%;
  height: auto;
}
pre, code {
  overflow-x: auto;
}

/* ===== PLAYGROUND — CORE LAYOUT ===== */
.pg-body {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  overflow: hidden;
  padding-top: 76px;
}

.pg-mono {
  font-family: 'JetBrains Mono', 'Courier New', monospace;
}

/* ===== HEADER ===== */
.pg-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.pg-header-left {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.pg-logo-icon {
  font-size: 1.4rem;
  color: var(--accent);
  background: rgba(99, 102, 241, 0.12);
  width: 42px;
  height: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pg-header-left h1 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.pg-header-left p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 0.1rem;
}

.pg-header-right {
  display: flex;
  gap: 0.7rem;
}

.pg-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.pg-btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-secondary);
}

.pg-btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.pg-btn-primary {
  background: var(--accent);
  color: #fff;
}

.pg-btn-primary:hover {
  background: #5558e0;
  transform: translateY(-1px);
}

.pg-btn-primary.pg-running i {
  animation: pgSpin 0.7s linear infinite;
}

@keyframes pgSpin {
  to { transform: rotate(360deg); }
}

/* ===== MAIN SPLIT LAYOUT ===== */
.pg-main {
  flex: 1;
  display: flex;
  overflow: hidden;
  min-height: 0;
}

.pg-editors {
  display: flex;
  flex-direction: column;
  width: 50%;
  min-width: 280px;
  border-right: 1px solid var(--border);
}

.pg-editor-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--border);
  min-height: 0;
  position: relative;
  z-index: 1;
}

.pg-editor-pane:last-child {
  border-bottom: none;
}

.pg-editor-tab {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.2rem;
  background: var(--bg-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.pg-tab-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

.pg-dot-html { background: #fb923c; }
.pg-dot-css { background: #60a5fa; }
.pg-dot-js { background: #fbbf24; }

.pg-textarea {
  flex: 1;
  width: 100%;
  resize: none;
  border: none;
  outline: none;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.65;
  padding: 1rem 1.2rem;
  tab-size: 2;
  min-height: 80px;
}

.pg-textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.5;
}

/* ===== RESIZER ===== */
.pg-resizer {
  width: 5px;
  cursor: col-resize;
  background: var(--border);
  flex-shrink: 0;
  transition: background 0.2s ease;
}

.pg-resizer:hover,
.pg-resizer.pg-resizing {
  background: var(--accent);
}

/* ===== PREVIEW COLUMN ===== */
.pg-preview-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 280px;
}

.pg-preview-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 1.2rem;
  background: var(--bg-secondary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.pg-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.pg-icon-btn:hover {
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent);
}

.pg-iframe {
  flex: 1;
  width: 100%;
  border: none;
  background: #fff;
  min-height: 100px;
}

/* ===== CONSOLE ===== */
.pg-console {
  height: 160px;
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  background: #0d0d16;
  display: flex;
  flex-direction: column;
}

.pg-console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 1.2rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.pg-console-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.6rem 1.2rem;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.8rem;
  line-height: 1.7;
}

.pg-console-line {
  padding: 0.15rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  color: #cdd6f4;
  white-space: pre-wrap;
  word-break: break-word;
}

.pg-console-line.pg-console-error {
  color: #f87171;
}

.pg-console-line.pg-console-warn {
  color: #fbbf24;
}

.pg-console-empty {
  color: var(--text-secondary);
  opacity: 0.5;
  font-style: italic;
}

/* ===== MOBILE PANE SWITCHER ===== */
.pg-mobile-switch {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
  flex-shrink: 0;
}

.pg-switch-btn {
  flex: 1;
  padding: 0.8rem 0.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  border-top: 2px solid transparent;
}

.pg-switch-btn.active {
  color: var(--accent);
  border-top-color: var(--accent);
}


/* ===== COLLAPSIBLE PANES (desktop) ===== */
.pg-collapse-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  margin-left: auto;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.pg-collapse-btn:hover {
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent);
}

.pg-editor-tab {
  justify-content: flex-start;
}

.pg-editor-pane.pg-collapsed {
  flex: 0 0 auto;
}

.pg-editor-pane.pg-collapsed .pg-textarea {
  display: none;
}

.pg-editor-pane.pg-collapsed .pg-collapse-btn i {
  transform: rotate(180deg);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .pg-btn-label { display: none; }
  .pg-btn { padding: 0.55rem 0.8rem; }
}

@media (max-width: 768px) {
  .pg-header { padding: 1rem 1.2rem; }
  .pg-header-left p { display: none; }

  .pg-main {
    position: relative;
    flex-direction: column;
  }

  .pg-editors {
    width: 100%;
    border-right: none;
    display: none;
  }

  .pg-editors.pg-active-pane {
    display: flex;
  }

  .pg-resizer { display: none; }

  .pg-editor-pane {
    display: none;
    border-bottom: none;
  }

  .pg-editor-pane.pg-active-pane {
    display: flex;
    flex: 1;
    min-height: calc(100dvh - 76px - 70px - 50px);
  }

  .pg-preview-col {
    display: none;
    width: 100%;
  }

  .pg-preview-col.pg-active-pane {
    display: flex;
  }

  .pg-mobile-switch {
    display: flex;
  }

  .pg-console {
    height: 130px;
  }

  .pg-collapse-btn {
    display: none;
  }
}