@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg-primary: #f8fafc; /* Light slate gray background */
  --bg-grid: #f1f5f9;
  --panel-bg: #ffffff; /* Clean white panels */
  --border-color: #e2e8f0; /* Soft slate borders */
  
  --accent-purple: hsl(245, 20%, 45%); /* Subtle slate-indigo */
  --accent-purple-hover: hsl(245, 20%, 38%);
  --accent-purple-glow: rgba(90, 92, 138, 0.08);
  
  --accent-cyan: hsl(195, 22%, 40%); /* Muted slate-teal */
  --accent-cyan-hover: hsl(195, 22%, 34%);
  --accent-cyan-glow: rgba(78, 104, 115, 0.08);
  
  --text-main: #1e293b; /* Charcoal Slate 800 */
  --text-muted: #64748b; /* Slate 500 */
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.04), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(14, 116, 144, 0.04) 0px, transparent 50%);
  color: var(--text-main);
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border-color);
  background: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

header h1 {
  margin: 0;
  font-family: 'Outfit', sans-serif;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

header .meta-badge {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  color: var(--accent-purple);
  font-weight: 600;
}

.app-layout {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  gap: 2rem;
  padding: 2rem;
  box-sizing: border-box;
}

/* --- Toolbar (Undo/Redo) --- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--panel-bg);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s ease;
}

.toolbar-btn:hover:not(:disabled) {
  background: var(--bg-primary);
  border-color: #cbd5e1;
}

.toolbar-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  color: var(--text-muted);
}

/* --- Main Wizard Container Card --- */
#page-wizard-container {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  min-height: 540px; /* Stabilizes height during DOM wash to prevent layout collapse */
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

/* Page Headers */
.page-block {
  margin-bottom: 1rem;
  border-left: 4px solid var(--accent-purple);
  padding-left: 1rem;
}

.page-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

/* --- Form Wizard Layout --- */
.page-form-subcontainer {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-question-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.75rem 0;
  animation: fadeIn 0.3s ease-out;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-input, .form-textarea {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px var(--accent-purple-glow);
}

.form-checkbox-line {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0.4rem 0;
  font-size: 0.92rem;
  color: var(--text-main);
  cursor: pointer;
}

.form-checkbox-input {
  accent-color: var(--accent-purple);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.form-button {
  align-self: flex-start;
  background: var(--accent-purple);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 0.65rem 1.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.form-button:hover {
  background: var(--accent-purple-hover);
  transform: translateY(-1px);
}

.form-button:active {
  transform: translateY(0);
}

.form-button.form-button-destructive {
  background: #ef4444;
  color: white;
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
}

.form-button.form-button-destructive:hover {
  background: #dc2626;
}

.form-locked-field {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  color: var(--accent-cyan);
  font-weight: 600;
  font-size: 0.92rem;
}

/* --- Chat Wizard Nested Views --- */
.page-chat-subcontainer, .form-chat-subcontainer {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem; /* Standardized 24px padding */
  display: flex;
  flex-direction: column;
  gap: 1rem; /* Consistent 16px space between message blocks */
  box-sizing: border-box;
}

/* Chat Block elements */
.chat-question-block {
  display: flex;
  flex-direction: column;
  gap: 0.75rem; /* Consistent 12px space between bubble and input/button row */
  animation: slideIn 0.25s ease-out;
}

.chat-question-text {
  align-self: flex-start;
  background: rgba(90, 92, 138, 0.05); /* Subtle brand-colored tint (lavender/indigo) */
  border: 1px solid rgba(90, 92, 138, 0.12); /* Soft matching border */
  padding: 0.75rem 1rem;
  border-radius: 12px 12px 12px 0px; /* Sharp bottom-left corner mimics speech bubble tail */
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--text-main);
  max-width: 85%;
  box-shadow: var(--shadow-sm);
  font-weight: 500; /* Overrides <strong> default bolding */
}

.chat-question-header {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-top: 0; /* Removed arbitrary margin to align spacing rhythm */
}

.chat-input {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 0.55rem 0.75rem;
  color: var(--text-main);
  font-size: 0.88rem;
  outline: none;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.chat-input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-glow);
}

.chat-button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem; /* Consistent 8px gap between inline buttons */
}

.chat-button {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.55rem 1.2rem;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.chat-button:hover {
  background: var(--bg-primary);
  border-color: #cbd5e1;
}

.chat-answer-line {
  align-self: flex-end;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.65rem 1rem;
  border-radius: 12px 12px 0px 12px; /* Sharp bottom-right corner mimics speech bubble tail */
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

.chat-edit-button {
  font-size: 0.72rem;
  color: var(--accent-cyan);
  background: transparent;
  border: 1px solid rgba(14, 116, 144, 0.2);
  border-radius: 4px;
  padding: 0.1rem 0.4rem;
  cursor: pointer;
  margin-left: 0.5rem;
  transition: all 0.2s;
}

.chat-edit-button:hover {
  background: rgba(14, 116, 144, 0.05);
  border-color: var(--accent-cyan);
}

.chat-option-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.3rem 0;
  font-size: 0.88rem;
  cursor: pointer;
}

/* Nesting Container */
.chat-form-subContainer, .chat-chat-subContainer {
  border-top: 1px solid var(--border-color);
  padding-top: 0.75rem;
  margin-top: 0.25rem;
}

/* Page Navigation Buttons */
.page-button-row {
  margin-top: auto;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
}

.page-button {
  background: #ffffff;
  border: 1px solid #cbd5e1;
  color: var(--text-main);
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-sm);
}

.page-button:hover {
  background: #f8fafc;
  border-color: #94a3b8;
}

.page-button[data-path="pagewizard.next"] {
  background: var(--accent-purple);
  border: none;
  color: white;
  box-shadow: var(--shadow-md);
}

.page-button[data-path="pagewizard.next"]:hover {
  background: var(--accent-purple-hover);
  transform: translateY(-1px);
}

.page-say-row {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

/* --- Rich Markdown Styling --- */
.md-h1 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-top: 1.25rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.35rem;
}
.md-h2 {
  font-size: 1.25rem;
  font-weight: 650;
  color: var(--text-dark);
  margin-top: 1rem;
  margin-bottom: 0.5rem;
}
.md-h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-top: 0.85rem;
  margin-bottom: 0.45rem;
}
.md-h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-blue-dark);
  margin-top: 0.75rem;
  margin-bottom: 0.35rem;
}
.md-bullet {
  color: var(--accent-blue-dark);
  font-weight: bold;
  margin-right: 0.35rem;
}
.md-bullet-text {
  color: var(--text-dark);
}
strong {
  color: var(--text-dark);
  font-weight: 600;
}

/* --- Time Travel Sidebar --- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-sizing: border-box;
}

.sidebar-panel {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.sidebar-panel h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  margin: 0;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.65rem;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 350px;
  overflow-y: auto;
  padding-right: 0.25rem;
}

/* Custom Scrollbars */
.history-list::-webkit-scrollbar {
  width: 5px;
}
.history-list::-webkit-scrollbar-track {
  background: #f1f5f9;
}
.history-list::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
}

.history-item {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  font-size: 0.84rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.history-item:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: var(--text-main);
  transform: translateX(2px);
}

.history-item.active {
  background: #eef2ff;
  border-color: #a5b4fc;
  color: var(--accent-purple);
  font-weight: 600;
}

.history-item .rev-badge {
  font-size: 0.68rem;
  background: #e2e8f0;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  color: var(--text-muted);
}

.history-item.active .rev-badge {
  background: #c7d2fe;
  color: var(--accent-purple);
}

.state-viewer {
  font-family: monospace;
  font-size: 0.72rem;
  background: #0f172a; /* Nice terminal black for active contrast */
  padding: 1rem;
  border-radius: 8px;
  color: #38bdf8; /* Light sky blue console text */
  overflow-x: auto;
  max-height: 200px;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-10px); }
  to { opacity: 1; transform: translateX(0); }
}

/* --- Form and Chat Lists --- */
.form-list-block, .chat-list-block {
  margin: 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.form-list-header, .chat-list-header {
  font-size: 0.88rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-blue-dark);
  margin-bottom: 0.25rem;
}

.form-list-container, .chat-list-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-list-item-row, .chat-list-item-row {
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: relative;
  animation: fadeIn 0.25s ease-out;
}

.form-list-delete-button, .chat-list-delete-button {
  align-self: flex-end;
  background: #fef2f2;
  color: #ef4444;
  border: 1px solid #fee2e2;
  border-radius: 8px;
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 0.25rem;
}

.form-list-delete-button:hover, .chat-list-delete-button:hover {
  background: #fee2e2;
  border-color: #fca5a5;
  transform: translateY(-1px);
}

.form-list-add-button, .chat-list-add-button {
  align-self: flex-start;
  background: #f8fafc;
  color: var(--text-muted);
  border: 1px dashed var(--border-color);
  border-radius: 10px;
  padding: 0.5rem 1.1rem;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 0.25rem;
}

.form-list-add-button:hover, .chat-list-add-button:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
  color: var(--text-main);
  transform: translateY(-1px);
}

.form-button.saved {
  background: #ecfdf5 !important;
  color: #059669 !important;
  border: 1px solid #a7f3d0 !important;
  box-shadow: none !important;
  cursor: default !important;
  pointer-events: none !important;
  transform: none !important;
}

/* --- Validation & Card Header Styles --- */
.form-input.invalid, .form-textarea.invalid {
  border-color: #fca5a5 !important;
  background-color: #fff1f2 !important;
}
.form-input.invalid:focus, .form-textarea.invalid:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
  border-color: #ef4444 !important;
}

.form-checkbox-group-container.invalid, .form-radio-group-container.invalid {
  border: 1px solid #fca5a5 !important;
  background: #fff1f2 !important;
  padding: 0.75rem !important;
  border-radius: 8px !important;
  width: 100%;
}

.form-field-error {
  color: #e11d48;
  font-size: 0.76rem;
  font-weight: 500;
  margin-top: 0.3rem;
  animation: fadeIn 0.2s ease-out;
}

.form-validation-complaints-box {
  margin-top: 1rem;
  padding: 0.85rem 1.1rem;
  background: #fef2f2;
  border: 1px solid #fee2e2;
  border-radius: 10px;
  font-size: 0.82rem;
  color: #991b1b;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  animation: fadeIn 0.25s ease-out;
}
.complaints-header {
  font-weight: 650;
  margin-bottom: 0.15rem;
}
.complaint-item {
  font-weight: 500;
  padding-left: 0.25rem;
}

.form-list-item-card-header, .chat-list-item-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.65rem;
  margin-bottom: 0.85rem;
  width: 100%;
}
.card-title-text {
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.card-status-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.card-status-badge.complete {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #d1fae5;
}
.card-status-badge.incomplete {
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fef3c7;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   Recause site frame
   The application itself intentionally remains a light SaaS-style interface.
   -------------------------------------------------------------------------- */
:root {
  --recause-black: #000;
  --recause-white: #fff;
  --recause-gray: #8a8a8a;
  --recause-line: #262626;
  --recause-cyan: #00e5ff;
  --recause-blue: #0866ff;
  --recause-yellow: #ffe600;
  --recause-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

body {
  background: var(--recause-black);
  background-image:
    repeating-linear-gradient(to bottom, rgba(255,255,255,.018) 0 1px, transparent 1px 5px);
}

.site-header {
  padding: 18px 0;
  border: 0;
  border-bottom: 1px solid var(--recause-line);
  background: #000;
  color: #fff;
  font-family: var(--recause-mono);
}

.wrap {
  width: min(calc(100% - 48px), 1120px);
  margin: 0 auto;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.brand {
  font-size: .9rem;
  letter-spacing: .32em;
  text-decoration: none;
  font-weight: 700;
  color: #fff;
}

.navlinks {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: .82rem;
  letter-spacing: .08em;
}

.navlinks a {
  color: #bdbdbd;
  font-family: var(--recause-mono);
  font-size: .82rem;
  letter-spacing: .08em;
  text-decoration: none;
}

.back-link {
  color: #bdbdbd;
  font-family: var(--recause-mono);
  font-size: .75rem;
  letter-spacing: .09em;
  text-decoration: none;
}

.navlinks a:hover,
.back-link:hover { color: #fff; }

.navlinks a:focus-visible,
.brand:focus-visible,
.back-link:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--recause-yellow);
  outline-offset: 3px;
}

.demo-frame {
  width: min(calc(100% - 48px), 1120px);
  margin: 0 auto;
  padding: 76px 0 84px;
}

.demo-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 40px;
  color: #fff;
  font-family: var(--recause-mono);
  padding: 0 2px 28px;
}

.demo-kicker {
  margin-bottom: 14px;
  color: #b5b5b5;
  font-size: .72rem;
  letter-spacing: .17em;
}

.demo-intro h1 {
  margin: 0;
  color: #fff;
  font-family: var(--recause-mono);
  font-size: clamp(1.6rem, 3.3vw, 3.6rem);
  line-height: .94;
  letter-spacing: -.065em;
}

.demo-intro p {
  max-width: 720px;
  margin: 20px 0 0;
  color: #d5d5d5;
  font-size: .9rem;
  line-height: 1.65;
}

.demo-surface {
  overflow: hidden;
  border: 1px solid #303030;
  background: var(--bg-primary);
  box-shadow: 0 28px 90px rgba(0,0,0,.56);
}

.demo-toolbar {
  padding: 14px 18px;
  border: 0;
  border-bottom: 1px solid var(--border-color);
  background: #fff;
  box-shadow: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.demo-toolbar-title {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  font-family: 'Outfit', sans-serif;
  font-size: .9rem;
  font-weight: 400;
}

.demo-toolbar-title svg { color: var(--accent-purple); }

.demo-surface .app-layout {
  max-width: 860px;
  padding: 42px 30px 54px;
}

.demo-surface main { width: 100%; }

.site-footer {
  width: min(calc(100% - 48px), 1120px);
  margin: 0 auto;
  padding: 26px 0 44px;
  border-top: 1px solid #151515;
  color: #a5a5a5;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-family: var(--recause-mono);
  font-size: .68rem;
  letter-spacing: .08em;
}

@media (max-width: 760px) {
  .site-header {
    padding: 0 18px;
    grid-template-columns: 1fr auto;
  }
  .site-context { display: none; }
  .site-nav { gap: 14px; }
  .site-nav a:nth-child(2) { display: none; }
  .demo-frame { width: min(calc(100% - 24px), 1120px); padding: 48px 0 60px; }
  .demo-intro { grid-template-columns: 1fr; align-items: start; gap: 20px; }
  .demo-toolbar { align-items: flex-start; gap: 14px; }
  .demo-toolbar-title span { display: none; }
  .demo-surface .app-layout { padding: 22px 12px 32px; }
  #page-wizard-container { padding: 1.35rem; border-radius: 12px; }
  .site-footer { width: calc(100% - 24px); flex-direction: column; }
}

@media (max-width: 460px) {
  .site-nav a:first-child { display: none; }
  .demo-toolbar { padding: 12px; }
  .toolbar-btn { padding: .48rem .65rem; }
}

/* --- Collapsible Code Viewer & Conceptual Highlighting --- */
.code-details {
  background: #0f1016; /* Deep dark background */
  border: 1px solid #222;
  border-radius: 12px;
  margin-bottom: 2.5rem;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  transition: all 0.25s ease;
}
.code-details[open] {
  border-color: #0866ff; /* Felipe Pantone Blue accent on open */
}
.code-summary {
  padding: 1.1rem 1.4rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: #8a8a8a;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  background: rgba(255, 255, 255, 0.01);
}
.code-summary:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.03);
}
.code-summary span {
  display: flex;
  align-items: center;
  gap: 8px;
}
.summary-hint {
  font-size: 0.76rem;
  font-weight: 400;
  color: #a5a5a5;
}
.code-content {
  border-top: 1px solid #1a1a1a;
  background: #050608; /* Extremely dark terminal black */
  padding: 1.4rem;
  max-height: 520px;
  overflow-y: auto;
}
/* Custom Scrollbar for sleek developer code panel */
.code-content::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.code-content::-webkit-scrollbar-track {
  background: #050608;
}
.code-content::-webkit-scrollbar-thumb {
  background: #0866ff; /* Match the Pantone Blue frame color */
  border-radius: 4px;
  border: 1px solid #050608;
}
.code-content::-webkit-scrollbar-thumb:hover {
  background: #3b82f6; /* Lighter blue on hover */
}
.code-content pre {
  margin: 0;
  font-family: 'Fira Code', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.8rem;
  line-height: 1.6;
  white-space: pre;
  color: #eee;
}