/* Creating Pinterest Content for the AI, SI, and Agentic Era - Stylesheet */
:root {
  --bg-primary: #05070d;
  --bg-secondary: #0c101d;
  --bg-tertiary: #131a2e;
  --bg-card: #101627;
  --bg-input: #080c18;
  --border-color: #212c47;
  --border-focus: #e60023;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-pinterest: #e60023;
  --accent-ruby: #c8001e;
  --accent-coral: #ff5252;
  --accent-amber: #f59e0b;
  --accent-cyan: #00d2ff;
  --accent-blue: #2f80ed;
  --accent-violet: #8b5cf6;
  --accent-emerald: #10b981;
  --accent-rose: #f43f5e;

  --pinterest-gradient: linear-gradient(135deg, #e60023 0%, #ff5252 50%, #ff7676 100%);
  --cyan-gradient: linear-gradient(135deg, #00d2ff 0%, #2f80ed 100%);
  --card-gradient: linear-gradient(180deg, rgba(16, 22, 39, 0.95) 0%, rgba(12, 16, 29, 0.95) 100%);

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --sidebar-width: 290px;
  --coach-width: 330px;
  --header-height: 64px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* App Header */
.app-header {
  height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 1.5rem;
  max-width: 1720px;
  margin: 0 auto;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.logo-badge {
  background: var(--pinterest-gradient);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.78rem;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 2px 10px rgba(230, 0, 35, 0.35);
}

.title-group h1 {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
}

.title-group p {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.progress-bar-wrap {
  width: 130px;
  height: 8px;
  background-color: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.progress-bar-fill {
  height: 100%;
  width: 7%;
  background: var(--pinterest-gradient);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-text {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-coral);
  min-width: 32px;
}

.nav-link-btn {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.nav-link-btn:hover {
  background-color: var(--accent-pinterest);
  border-color: var(--accent-pinterest);
  color: #ffffff;
}

/* App Layout */
.app-container {
  display: flex;
  max-width: 1720px;
  margin: 0 auto;
  min-height: calc(100vh - var(--header-height));
  position: relative;
}

/* Step Navigation Sidebar */
.step-nav {
  width: var(--sidebar-width);
  background-color: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: 1.25rem 0.75rem;
  overflow-y: auto;
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
  flex-shrink: 0;
}

.step-nav-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
  margin-bottom: 0.85rem;
  padding-left: 0.5rem;
}

.step-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.step-nav-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  color: var(--text-secondary);
  font-size: 0.84rem;
}

.step-nav-item:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.step-nav-item.active {
  background: linear-gradient(90deg, rgba(230, 0, 35, 0.15) 0%, rgba(200, 0, 30, 0.05) 100%);
  border-color: rgba(230, 0, 35, 0.45);
  color: #ffffff;
  font-weight: 600;
}

.step-nav-item.completed .step-index-badge {
  background-color: var(--accent-emerald);
  color: #05070d;
}

.step-index-badge {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-nav-item.active .step-index-badge {
  background: var(--pinterest-gradient);
  color: #ffffff;
}

.step-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Stage Viewport */
.stage-viewport {
  flex: 1;
  padding: 2rem 2.5rem;
  max-width: 1040px;
  margin: 0 auto;
}

.card-step {
  display: none;
  background: var(--card-gradient);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  margin-bottom: 2rem;
  animation: fadeIn 0.25s ease forwards;
}

.card-step.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.stage-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.stage-badge-group {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.55rem;
  border-radius: 4px;
}

.badge-pinterest {
  background-color: rgba(230, 0, 35, 0.2);
  color: var(--accent-coral);
  border: 1px solid rgba(230, 0, 35, 0.4);
}

.badge-ai {
  background-color: rgba(0, 210, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 210, 255, 0.35);
}

.badge-established {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.badge-spec {
  background-color: rgba(139, 92, 246, 0.15);
  color: var(--accent-violet);
  border: 1px solid rgba(139, 92, 246, 0.35);
}

.stage-header h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
}

.stage-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.4rem;
}

/* Stage Content Formatting */
.content-section {
  margin-bottom: 1.75rem;
}

.content-section h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.content-section p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  margin-bottom: 0.85rem;
  line-height: 1.65;
}

.concept-box {
  background-color: var(--bg-tertiary);
  border-left: 4px solid var(--accent-pinterest);
  padding: 1rem 1.25rem;
  border-radius: 0 8px 8px 0;
  margin-bottom: 1.25rem;
}

.concept-box strong {
  color: var(--text-primary);
}

/* Grids and Cards */
.pillar-grid,
.archetype-grid,
.format-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.info-card {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.1rem;
  transition: transform 0.15s, border-color 0.15s;
}

.info-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-pinterest);
}

.info-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.info-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0;
}

/* Tables */
.data-table-wrap {
  overflow-x: auto;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.data-table th {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 700;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Code Blocks and Multi-OS Terminals */
.terminal-container {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.os-tabs {
  display: flex;
  gap: 0.5rem;
}

.os-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

.os-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.os-btn.active {
  background-color: var(--accent-pinterest);
  border-color: var(--accent-pinterest);
  color: #ffffff;
}

.terminal-card {
  display: none;
  padding: 1rem 1.25rem;
}

.terminal-card.active {
  display: block;
}

.terminal-card pre {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #38bdf8;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
}

/* Interactive Calculators and Widgets */
.calc-panel {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.slider-group {
  margin-bottom: 1rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.slider-val {
  color: var(--accent-coral);
}

.range-slider {
  width: 100%;
  accent-color: var(--accent-pinterest);
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  cursor: pointer;
}

.calc-score-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background-color: var(--bg-input);
  border-radius: 6px;
  border: 1px solid var(--border-color);
  margin-top: 1rem;
}

.calc-score-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-coral);
}

.calc-tier-badge {
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  text-transform: uppercase;
}

.tier-production {
  background-color: rgba(16, 185, 129, 0.2);
  color: var(--accent-emerald);
  border: 1px solid var(--accent-emerald);
}

.tier-revision {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
}

/* Checkpoint Verification Card */
.checkpoint-card {
  background-color: rgba(230, 0, 35, 0.05);
  border: 1px solid rgba(230, 0, 35, 0.3);
  border-radius: 8px;
  padding: 1.25rem;
  margin-top: 2rem;
}

.checkpoint-card h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checkpoint-card p {
  font-size: 0.84rem;
  color: var(--text-secondary);
  margin-bottom: 0.85rem;
}

.verify-input-group {
  display: flex;
  gap: 0.5rem;
}

.verify-input {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.85rem;
  padding: 0.5rem 0.85rem;
  border-radius: 6px;
}

.verify-input:focus {
  outline: none;
  border-color: var(--accent-pinterest);
}

.btn-verify {
  background: var(--pinterest-gradient);
  color: #ffffff;
  border: none;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn-verify:hover {
  opacity: 0.9;
}

.verify-feedback {
  font-size: 0.8rem;
  margin-top: 0.5rem;
  font-weight: 600;
}

.verify-feedback.pass {
  color: var(--accent-emerald);
}

.verify-feedback.fail {
  color: var(--accent-rose);
}

/* Orbit AI Coach Drawer */
.coach-drawer {
  width: var(--coach-width);
  background-color: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  height: calc(100vh - var(--header-height));
  position: sticky;
  top: var(--header-height);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.coach-header {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.coach-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--pinterest-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
  color: #ffffff;
}

.coach-title h3 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
}

.coach-title p {
  font-size: 0.72rem;
  color: var(--accent-emerald);
}

.coach-body {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.coach-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.5rem;
}

.faq-chip {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.74rem;
  padding: 0.3rem 0.55rem;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.faq-chip:hover {
  border-color: var(--accent-pinterest);
  color: var(--text-primary);
}

.chat-bubble {
  padding: 0.75rem 0.9rem;
  border-radius: 8px;
  font-size: 0.82rem;
  line-height: 1.45;
  max-width: 92%;
}

.chat-bubble.coach {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-left: 3px solid var(--accent-pinterest);
  align-self: flex-start;
}

.chat-bubble.user {
  background-color: rgba(230, 0, 35, 0.2);
  color: #ffffff;
  border: 1px solid rgba(230, 0, 35, 0.4);
  align-self: flex-end;
}

.coach-input-wrap {
  padding: 0.85rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 0.5rem;
}

.coach-input {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.82rem;
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
}

.coach-input:focus {
  outline: none;
  border-color: var(--accent-pinterest);
}

.btn-coach-send {
  background: var(--pinterest-gradient);
  color: #ffffff;
  border: none;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.45rem 0.75rem;
  border-radius: 6px;
  cursor: pointer;
}

/* Operational Safeguards Interactive Elements */
.guard-demo-box {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.1rem;
  margin-bottom: 1.25rem;
}

.guard-btn {
  background-color: var(--accent-rose);
  color: #ffffff;
  border: none;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 0.75rem;
}

.guard-output {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background-color: #030408;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #f43f5e;
  border: 1px solid #4c0519;
}

/* Responsive Media Queries */
@media (max-width: 1200px) {
  .coach-drawer {
    display: none;
  }
}

@media (max-width: 900px) {
  .step-nav {
    display: none;
  }
  .stage-viewport {
    padding: 1.25rem;
  }
}


/* Checkpoint Green Checkmark on Menu Items (Right-aligned) */
.nav-item a,
.step-nav-item,
.step-nav-btn,
.nav-item-btn,
.nav-link {
  display: flex !important;
  align-items: center !important;
  justify-content: flex-start !important;
  position: relative !important;
}

.nav-item.completed a::after,
.step-nav-item.completed::after,
.step-nav-btn.completed::after,
.nav-item-btn.completed::after,
.nav-link.completed::after {
  content: " \2713" !important;
  margin-left: auto !important;
  color: #22c55e !important;
  font-weight: 800 !important;
  font-size: 1.15rem !important;
  line-height: 1 !important;
  display: inline-flex !important;
  align-items: center !important;
}