/* Flexy.global Agency Style Case Study CSS - Complete Storytelling Version */

:root {
  --bg-main: #0B0E14;
  --bg-surface: #121824;
  --bg-card: rgba(20, 27, 41, 0.7);
  --bg-card-hover: rgba(30, 41, 62, 0.85);
  --bg-toc: rgba(15, 22, 35, 0.9);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(255, 199, 44, 0.25);
  --border-glow: rgba(255, 199, 44, 0.4);
  
  --gy-yellow: #FFC72C;
  --gy-yellow-bright: #FFE066;
  --gy-yellow-dark: #D9A400;
  --gy-navy: #002244;
  --gy-blue: #0072CE;
  --gy-cyan: #00E5FF;
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-heading: #FFFFFF;
  
  --badge-green: #10B981;
  --badge-green-bg: rgba(16, 185, 129, 0.15);
  --badge-yellow: #F59E0B;
  --badge-yellow-bg: rgba(245, 158, 11, 0.15);
  --badge-blue: #3B82F6;
  --badge-blue-bg: rgba(59, 130, 246, 0.15);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(255, 199, 44, 0.2);
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg-main: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F1F5F9;
  --bg-toc: #FFFFFF;
  
  --border-subtle: #E2E8F0;
  --border-accent: rgba(0, 34, 68, 0.2);
  --border-glow: rgba(0, 34, 68, 0.3);
  
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-heading: #0F172A;
  
  --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(0, 34, 68, 0.15);
}

/* Reset & Core Typography */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.7;
}

body {
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 199, 44, 0.3);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gy-yellow);
}

/* Reading Progress Bar */
#progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gy-navy), var(--gy-yellow), var(--gy-cyan));
  width: 0%;
  z-index: 1000;
  transition: width 0.1s ease-out;
}

/* Header Bar */
.flexy-header {
  position: fixed;
  top: 3px;
  left: 0;
  right: 0;
  height: 74px;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  z-index: 999;
  transition: var(--transition);
}

[data-theme="light"] .flexy-header {
  background: rgba(255, 255, 255, 0.9);
}

.flexy-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-badge {
  background: var(--gy-navy);
  color: var(--gy-yellow);
  font-weight: 900;
  font-size: 1rem;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--gy-yellow);
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 0 12px rgba(255, 199, 44, 0.2);
}

.brand-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.brand-title span {
  color: var(--gy-yellow);
  font-weight: 800;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.theme-toggle-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.1rem;
}

.theme-toggle-btn:hover {
  border-color: var(--gy-yellow);
  color: var(--gy-yellow);
  transform: rotate(15deg);
}

.btn-portfolio {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 10px 18px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 700;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-portfolio:hover {
  border-color: var(--gy-yellow);
  color: var(--gy-yellow);
}

.btn-primary-cta {
  background: linear-gradient(135deg, var(--gy-yellow), var(--gy-yellow-dark));
  color: #001328;
  font-weight: 800;
  font-size: 0.88rem;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(255, 199, 44, 0.3);
}

.btn-primary-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 199, 44, 0.5);
  background: linear-gradient(135deg, var(--gy-yellow-bright), var(--gy-yellow));
}

/* Page Container & Layout */
.container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 32px;
}

/* EDITORIAL HERO SECTION */
.hero-editorial {
  padding-top: 150px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--border-subtle);
}

.breadcrumb-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gy-yellow);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.hero-editorial-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--text-heading);
  margin-bottom: 24px;
}

.hero-editorial-subtitle {
  font-size: 1.3rem;
  color: var(--text-secondary);
  max-width: 920px;
  line-height: 1.6;
  margin-bottom: 40px;
}

/* Project Metadata Grid (Flexy Style) */
.metadata-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 60px;
}

.meta-item {
  border-right: 1px solid var(--border-subtle);
  padding-right: 20px;
}

.meta-item:last-child {
  border-right: none;
  padding-right: 0;
}

.meta-label {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gy-yellow);
  margin-bottom: 8px;
}

.meta-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
}

/* Full Bleed Hero Frame */
.hero-full-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-accent);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  background: var(--bg-surface);
}

.hero-full-img {
  width: 100%;
  height: auto;
  display: block;
}

/* LAYOUT GRID: Sticky TOC Sidebar + Main Content */
.main-editorial-layout {
  display: grid;
  grid-template-columns: 290px 1fr;
  gap: 60px;
  align-items: start;
  padding-top: 60px;
  padding-bottom: 120px;
}

/* Sticky Left Sidebar Navigation (TOC) */
.sticky-toc-sidebar {
  position: sticky;
  top: 110px;
  background: var(--bg-toc);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(16px);
}

.toc-title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gy-yellow);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.toc-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}

.toc-num {
  font-family: monospace;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 700;
}

.toc-item a:hover, .toc-item a.active {
  background: var(--gy-navy);
  color: var(--gy-yellow);
}

.toc-item a.active .toc-num {
  color: var(--gy-yellow);
}

/* EDITORIAL CONTENT SECTIONS */
.editorial-content-pane {
  display: flex;
  flex-direction: column;
  gap: 100px;
}

.content-section {
  scroll-margin-top: 110px;
}

.section-num-tag {
  font-family: monospace;
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--gy-yellow);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.section-heading {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.25;
}

.lead-p {
  font-size: 1.2rem;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 32px;
  font-weight: 400;
}

.body-p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 24px;
}

/* Outcome Highlight Box (Context / Intro) */
.outcome-intro-card {
  background: linear-gradient(135deg, rgba(0, 34, 68, 0.75), rgba(15, 24, 40, 0.95));
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 40px;
}

.outcome-intro-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--gy-yellow);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 5-Step Core Journey Timeline */
.journey-timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 36px 0;
  position: relative;
}

.journey-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  transition: var(--transition);
}

.journey-step:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateX(6px);
}

.step-number-badge {
  background: var(--gy-navy);
  border: 1px solid var(--gy-yellow);
  color: var(--gy-yellow);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

/* Artifacts Created Grid */
.artifacts-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin: 28px 0;
}

.artifact-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  transition: var(--transition);
}

.artifact-pill:hover {
  border-color: var(--border-accent);
  color: var(--gy-yellow);
}

.artifact-icon {
  font-size: 1.5rem;
  color: var(--gy-yellow);
  margin-bottom: 8px;
}

.artifact-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Interview Pitch Section */
.interview-pitch-card {
  background: linear-gradient(135deg, rgba(0, 34, 68, 0.9), rgba(10, 15, 26, 0.95));
  border: 2px solid var(--gy-yellow);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin-top: 32px;
}

.interview-closing-box {
  background: rgba(0, 0, 0, 0.4);
  border-left: 4px solid var(--gy-yellow);
  padding: 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gy-yellow);
  font-style: italic;
  margin-bottom: 32px;
  line-height: 1.6;
}

.interview-script-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.script-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.script-item h4 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--gy-yellow);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.script-item p {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Callout Quote Box */
.quote-box {
  background: linear-gradient(135deg, rgba(0, 34, 68, 0.6), rgba(15, 24, 40, 0.9));
  border-left: 4px solid var(--gy-yellow);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 28px 32px;
  margin: 36px 0;
}

.quote-box p {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Cards & Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.editorial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(16px);
  transition: var(--transition);
}

.editorial-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 199, 44, 0.1);
  border: 1px solid var(--border-accent);
  color: var(--gy-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 12px;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Comparative Table (Flexy Style) */
.table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: 32px 0;
}

.flexy-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.flexy-table th {
  background: var(--gy-navy);
  color: var(--gy-yellow);
  padding: 18px 24px;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.flexy-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.92rem;
  color: var(--text-secondary);
}

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

.badge-red {
  color: #EF4444;
  background: rgba(239, 68, 68, 0.12);
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.78rem;
}

.badge-green {
  color: var(--badge-green);
  background: var(--badge-green-bg);
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.78rem;
}

/* Pain Points Interactive Grid */
.pain-points-wrapper {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.pain-row {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 3fr;
  align-items: center;
  gap: 20px;
  transition: var(--transition);
}

.pain-row:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
}

.pain-title {
  font-weight: 700;
  color: var(--text-heading);
  font-size: 0.95rem;
}

.badge-sev {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  text-align: center;
}

.sev-high {
  background: rgba(239, 68, 68, 0.15);
  color: #EF4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.sev-med {
  background: rgba(245, 158, 11, 0.15);
  color: #F59E0B;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.pain-quote {
  font-style: italic;
  font-size: 0.88rem;
  color: var(--text-secondary);
  border-left: 2px solid var(--gy-yellow);
  padding-left: 12px;
}

/* Personas Interactive Tabs */
.personas-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
  margin-top: 24px;
}

.persona-tabs {
  display: flex;
  gap: 14px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 20px;
  margin-bottom: 32px;
}

.persona-tab-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
}

.persona-tab-btn.active, .persona-tab-btn:hover {
  background: var(--gy-navy);
  border-color: var(--gy-yellow);
  color: var(--gy-yellow);
}

.persona-pane {
  display: none;
  grid-template-columns: 1fr 2fr;
  gap: 36px;
}

.persona-pane.active {
  display: grid;
  animation: fadeIn 0.4s ease-out;
}

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

.persona-sidebar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
}

.persona-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gy-navy), var(--gy-blue));
  color: var(--gy-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px auto;
  border: 3px solid var(--gy-yellow);
}

.persona-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-heading);
}

.persona-role {
  font-size: 0.85rem;
  color: var(--gy-yellow);
  font-weight: 700;
  margin-bottom: 12px;
}

.persona-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.persona-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.persona-box h4 {
  font-size: 0.88rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gy-yellow);
  margin-bottom: 12px;
}

.persona-box ul {
  list-style: none;
}

.persona-box li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  padding-left: 16px;
  position: relative;
}

.persona-box li::before {
  content: "•";
  color: var(--gy-yellow);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* LIVE INTERACTIVE SIMULATOR (Embedded Desktop Window) */
.simulator-window {
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  margin-top: 32px;
}

.sim-titlebar {
  background: #001328;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.window-dots {
  display: flex;
  gap: 8px;
}

.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-r { background: #FF5F56; }
.dot-y { background: #FFBD2E; }
.dot-g { background: #27C93F; }

.sim-body {
  display: grid;
  grid-template-columns: 340px 1fr;
  min-height: 580px;
}

.sim-sidebar {
  background: rgba(10, 15, 26, 0.95);
  border-right: 1px solid var(--border-subtle);
  padding: 24px;
}

.sim-heading {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gy-yellow);
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 10px 12px;
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--gy-yellow);
}

.preset-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  width: 100%;
  text-align: left;
  margin-bottom: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.preset-btn:hover {
  border-color: var(--gy-yellow);
  color: var(--gy-yellow);
}

.run-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--gy-yellow), var(--gy-yellow-dark));
  color: #001328;
  font-weight: 800;
  font-size: 0.9rem;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.sim-messages-pane {
  background: var(--bg-main);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
  max-height: 600px;
}

.chat-msg {
  display: flex;
  gap: 12px;
  max-width: 90%;
}

.chat-msg.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  flex-shrink: 0;
}

.chat-msg.ai .chat-avatar {
  background: var(--gy-navy);
  color: var(--gy-yellow);
  border: 1px solid var(--gy-yellow);
}

.chat-msg.user .chat-avatar {
  background: var(--gy-blue);
  color: white;
}

.chat-bubble {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* KPI Counters (Flexy Style) */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gy-navy), var(--gy-yellow));
}

.kpi-num {
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--gy-yellow);
  line-height: 1;
  margin-bottom: 8px;
}

.kpi-lbl {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 6px;
}

.kpi-notes {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Architecture Code Block */
.code-block {
  background: rgba(5, 8, 14, 0.95);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 18px;
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--gy-cyan);
  overflow-x: auto;
  line-height: 1.5;
}

/* Footer */
footer {
  background: #001328;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 40px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 30px;
  margin-bottom: 30px;
}

/* Media Queries */
@media (max-width: 1024px) {
  .main-editorial-layout { grid-template-columns: 1fr; }
  .sticky-toc-sidebar { position: relative; top: 0; }
  .metadata-grid { grid-template-columns: repeat(3, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .artifacts-grid { grid-template-columns: repeat(3, 1fr); }
  .sim-body { grid-template-columns: 1fr; }
  .pain-row { grid-template-columns: 1fr 1fr; }
  .persona-pane { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .flexy-header { padding: 0 20px; }
  .hero-editorial-title { font-size: 2.3rem; }
  .metadata-grid { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .kpi-grid, .artifacts-grid { grid-template-columns: 1fr; }
  .pain-row { grid-template-columns: 1fr; }
  .persona-tabs { flex-direction: column; }
}