/* ==========================================================================
   ICTONE Practical Lab - Combined Pseudocode & Pascal Code Lab Stylesheet
   W3Schools-style Clean Educational Coding Workspace
   ========================================================================== */

/* ── Page Layout ── */
.code-lab-page {
  background-color: var(--bg-secondary, #F8FAFC);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.code-lab-main {
  padding-top: 5rem;
  padding-bottom: 2rem;
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
}

/* ── Workspace Header ── */
.code-workspace-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-subtle, #E2E8F0);
  padding: 0.65rem 1.5rem;
  box-shadow: 0 1px 3px rgba(24, 31, 58, 0.04);
}

.code-header-inner {
  max-width: 1700px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.code-title-group {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.lab-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted, #64748B);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  background: #F1F5F9;
  border: 1px solid var(--border-subtle, #E2E8F0);
  transition: all 0.15s ease;
}

.lab-back-link:hover {
  color: #2563EB;
  background: #EFF6FF;
  border-color: #BFDBFE;
}

.code-title-wrapper {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.code-page-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #0F172A;
  letter-spacing: -0.02em;
  margin: 0;
  line-height: 1.2;
}

.lab-tag-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: #DCFCE7;
  color: #15803D;
  border: 1px solid rgba(34, 197, 94, 0.3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.code-page-subtitle {
  font-size: 0.82rem;
  color: #64748B;
  margin: 0;
}

/* ── Prominent Language Switcher at Top ── */
.code-lang-selector-bar {
  background: #FFFFFF;
  border-bottom: 1px solid #E2E8F0;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.code-lang-tabs {
  display: inline-flex;
  background: #F1F5F9;
  padding: 4px;
  border-radius: 10px;
  border: 1px solid #E2E8F0;
  gap: 4px;
}

.code-lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.6rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: #475569;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
  font-family: inherit;
}

.code-lang-btn:hover:not(.active) {
  color: #0F172A;
  background: rgba(255, 255, 255, 0.6);
}

.code-lang-btn.active {
  background: #2563EB;
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.code-lang-icon {
  font-size: 1rem;
}

/* ── Workspace Container ── */
.code-workspace-container {
  max-width: 1700px;
  width: 100%;
  margin: 1.25rem auto 0;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
}

/* ── Primary Action Toolbar ── */
.code-toolbar {
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.code-toolbar-left, .code-toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-code-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #0F172A;
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  user-select: none;
}

.btn-code-action:hover:not(:disabled) {
  background: #EFF6FF;
  border-color: #BFDBFE;
  color: #2563EB;
}

.btn-code-action:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-code-action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-code-run {
  background: #2563EB;
  color: #FFFFFF;
  border-color: #2563EB;
  padding: 0.5rem 1.1rem;
  font-weight: 700;
  font-size: 0.86rem;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.28);
}

.btn-code-run:hover:not(:disabled) {
  background: #1D4ED8;
  border-color: #1D4ED8;
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.38);
}

.btn-code-stop {
  background: #DC2626;
  color: #FFFFFF;
  border-color: #DC2626;
  display: none;
}

.btn-code-stop:hover:not(:disabled) {
  background: #B91C1C;
  color: #FFFFFF;
}

.code-toolbar-divider {
  width: 1px;
  height: 20px;
  background: #E2E8F0;
  margin: 0 0.2rem;
}

/* ── Mobile View Tabs (Code vs Output) ── */
.code-mobile-view-tabs {
  display: none;
  background: #F1F5F9;
  border-bottom: 1px solid #CBD5E1;
  padding: 4px;
  gap: 4px;
}

.code-view-tab {
  flex: 1;
  padding: 0.5rem;
  font-size: 0.84rem;
  font-weight: 700;
  border: none;
  background: transparent;
  color: #475569;
  border-radius: 6px;
  cursor: pointer;
}

.code-view-tab.active {
  background: #FFFFFF;
  color: #0F172A;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

/* ── Split Editor & Output Workspace ── */
.code-workspace-body {
  display: flex;
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-bottom: none;
  height: clamp(500px, 62vh, 650px);
  position: relative;
  overflow: hidden;
}

/* Left Editor Panel (55%) */
.code-editor-panel {
  flex: 55;
  display: flex;
  flex-direction: column;
  height: 100%;
  border-right: 1px solid #CBD5E1;
  background: #1E293B;
  overflow: hidden;
  position: relative;
}

.code-panel-header {
  height: 38px;
  background: #0F172A;
  border-bottom: 1px solid #334155;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  font-size: 0.76rem;
  font-weight: 700;
  color: #94A3B8;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.code-panel-title-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.code-lang-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(37, 99, 235, 0.2);
  color: #60A5FA;
  border: 1px solid rgba(96, 165, 250, 0.3);
}

.code-editor-container {
  flex: 1;
  width: 100%;
  height: calc(100% - 38px);
  position: relative;
  overflow: hidden;
}

/* CodeMirror Sizing & Theming */
.code-editor-container .CodeMirror {
  height: 100% !important;
  font-family: 'JetBrains Mono', Consolas, Monaco, monospace;
  font-size: 14px;
  line-height: 1.55;
}

.code-fallback-textarea {
  width: 100%;
  height: 100%;
  background: #1E293B;
  color: #F8FAFC;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  line-height: 1.55;
  padding: 1rem;
  border: none;
  outline: none;
  resize: none;
  display: none;
}

/* Right Output Panel (45%) */
.code-output-panel {
  flex: 45;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #090D16;
  overflow: hidden;
  position: relative;
}

.code-output-header {
  height: 38px;
  background: #050811;
  border-bottom: 1px solid #1E293B;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  font-size: 0.76rem;
  font-weight: 700;
  color: #94A3B8;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.code-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  background: #1E293B;
  color: #94A3B8;
  font-family: 'Inter', sans-serif;
  text-transform: none;
  letter-spacing: normal;
}

.code-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #64748B;
}

.code-status-pill.running .code-status-dot { background: #3B82F6; box-shadow: 0 0 6px #3B82F6; }
.code-status-pill.running { color: #93C5FD; background: rgba(59, 130, 246, 0.15); }

.code-status-pill.waiting .code-status-dot { background: #F59E0B; box-shadow: 0 0 6px #F59E0B; }
.code-status-pill.waiting { color: #FCD34D; background: rgba(245, 158, 11, 0.15); }

.code-status-pill.finished .code-status-dot { background: #10B981; }
.code-status-pill.finished { color: #6EE7B7; background: rgba(16, 185, 129, 0.15); }

.code-status-pill.error .code-status-dot { background: #EF4444; }
.code-status-pill.error { color: #FCA5A5; background: rgba(239, 68, 68, 0.15); }

.code-output-body {
  flex: 1;
  padding: 1rem 1.25rem;
  overflow-y: auto;
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 13.5px;
  line-height: 1.6;
  color: #E2E8F0;
  display: flex;
  flex-direction: column;
}

.code-output-empty {
  color: #64748B;
  font-style: italic;
}

.code-output-text {
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

.code-output-error {
  color: #F87171;
  background: rgba(239, 68, 68, 0.1);
  border-left: 3px solid #EF4444;
  padding: 0.6rem 0.8rem;
  border-radius: 0 4px 4px 0;
  margin: 0.5rem 0;
  font-size: 13px;
  white-space: pre-wrap;
}

.code-output-success {
  color: #34D399;
  font-size: 12px;
  margin-top: 0.75rem;
  border-top: 1px solid #1E293B;
  padding-top: 0.5rem;
}

/* ── Inline Runtime Input Box ── */
.code-runtime-input-box {
  background: #131B2E;
  border: 1px solid #3B82F6;
  border-radius: 8px;
  padding: 0.85rem 1rem;
  margin: 0.75rem 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.code-input-prompt-label {
  font-size: 12px;
  font-weight: 700;
  color: #93C5FD;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.code-input-row {
  display: flex;
  gap: 0.5rem;
}

.code-runtime-input-field {
  flex: 1;
  background: #090D16;
  border: 1px solid #334155;
  border-radius: 4px;
  padding: 0.45rem 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: #FFFFFF;
  outline: none;
}

.code-runtime-input-field:focus {
  border-color: #3B82F6;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.3);
}

.btn-runtime-submit {
  background: #2563EB;
  color: #FFFFFF;
  border: none;
  border-radius: 4px;
  padding: 0.45rem 0.9rem;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s ease;
}

.btn-runtime-submit:hover {
  background: #1D4ED8;
}

/* ── Status Bar / Footer ── */
.code-workspace-footer {
  background: #F8FAFC;
  border: 1px solid #CBD5E1;
  border-radius: 0 0 10px 10px;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: #64748B;
}

.code-footer-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.code-key-hint {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.code-key-badge {
  background: #E2E8F0;
  color: #334155;
  padding: 1px 5px;
  border-radius: 3px;
  font-family: monospace;
  font-weight: 700;
  font-size: 11px;
}

/* ── CodeMirror Line Error Marker ── */
.code-error-line {
  background: rgba(239, 68, 68, 0.2) !important;
  border-left: 3px solid #EF4444 !important;
}

/* ── Drawers (Examples & Reference) ── */
.code-drawer {
  position: fixed;
  inset: 0;
  z-index: 900;
  pointer-events: none;
  visibility: hidden;
  transition: visibility 0.3s;
}

.code-drawer.active {
  pointer-events: auto;
  visibility: visible;
}

.code-drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.code-drawer.active .code-drawer-backdrop {
  opacity: 1;
}

.code-drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 440px;
  max-width: 90vw;
  height: 100%;
  background: #FFFFFF;
  box-shadow: -4px 0 24px rgba(15, 23, 42, 0.12);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
}

.code-drawer.active .code-drawer-content {
  transform: translateX(0);
}

.code-drawer-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #F8FAFC;
}

.code-drawer-title-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.code-drawer-icon {
  font-size: 1.4rem;
}

.code-drawer-title-box h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  color: #0F172A;
}

.code-drawer-subtitle {
  font-size: 0.76rem;
  color: #64748B;
}

.code-drawer-close {
  background: transparent;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  color: #64748B;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: all 0.15s ease;
}

.code-drawer-close:hover {
  background: #E2E8F0;
  color: #0F172A;
}

.code-drawer-body {
  padding: 1.25rem 1.5rem;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* Example Cards */
.code-example-card {
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-radius: 8px;
  padding: 0.9rem 1rem;
  transition: all 0.15s ease;
}

.code-example-card:hover {
  border-color: #2563EB;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.08);
}

.code-example-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  background: #EFF6FF;
  color: #2563EB;
  margin-bottom: 0.35rem;
}

.code-example-card h4 {
  margin: 0 0 0.3rem 0;
  font-size: 0.92rem;
  font-weight: 700;
  color: #0F172A;
}

.code-example-card p {
  margin: 0 0 0.75rem 0;
  font-size: 0.8rem;
  color: #475569;
  line-height: 1.4;
}

.code-example-snippet {
  background: #0F172A;
  color: #E2E8F0;
  padding: 0.65rem 0.85rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  line-height: 1.45;
  margin-bottom: 0.75rem;
  overflow-x: auto;
  white-space: pre-wrap;
}

.btn-load-example {
  width: 100%;
  padding: 0.45rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #2563EB;
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-load-example:hover {
  background: #2563EB;
  color: #FFFFFF;
}

/* Reference Cards */
.code-ref-card {
  background: #FFFFFF;
  border: 1px solid #CBD5E1;
  border-radius: 8px;
  padding: 0.9rem 1rem;
}

.code-ref-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #0F172A;
  margin-bottom: 0.35rem;
}

.code-ref-syntax {
  background: #F1F5F9;
  color: #0F172A;
  padding: 0.45rem 0.65rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 0.45rem;
  border-left: 3px solid #2563EB;
}

.code-ref-desc {
  font-size: 0.8rem;
  color: #475569;
  line-height: 1.4;
  margin: 0;
}

/* Toast Notifications */
.code-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
  pointer-events: none;
}

.code-toast {
  background: #0F172A;
  color: #FFFFFF;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

.code-toast.show {
  opacity: 1;
  transform: translateY(0);
}

.code-toast.success { background: #15803D; }
.code-toast.warning { background: #B45309; }
.code-toast.error { background: #DC2626; }

/* ── Responsive Behavior ── */
@media (max-width: 860px) {
  .code-workspace-container {
    padding: 0 1rem;
  }

  .code-mobile-view-tabs {
    display: flex;
  }

  .code-workspace-body {
    flex-direction: column;
    height: 480px;
  }

  .code-editor-panel, .code-output-panel {
    flex: 1;
    width: 100%;
    border-right: none;
  }

  /* When mobile view tabs are toggled */
  .code-workspace-body[data-view="code"] .code-output-panel {
    display: none;
  }

  .code-workspace-body[data-view="output"] .code-editor-panel {
    display: none;
  }
}

@media (max-width: 480px) {
  .code-actions-toolbar {
    padding: 0.5rem 0.75rem;
    gap: 0.35rem;
  }
  .btn-code-action span {
    display: none;
  }
  .btn-code-action {
    padding: 0.4rem 0.55rem;
  }
  .btn-code-run span, .btn-code-stop span {
    display: inline;
  }
  .code-toast-container {
    right: 50%;
    transform: translateX(50%);
    bottom: 16px;
  }
}

@media (max-width: 360px) {
  .code-lang-tabs {
    width: 100%;
  }
  .code-lang-btn {
    flex: 1;
    padding: 0.45rem 0.5rem;
    font-size: 0.8rem;
  }
}