/* LIFE Token Whitepaper -- Professional Document Design
 * GitBook-style documentation with clean, professional aesthetics
 * Separate from AI-OS Life web-serial / novel design
 * License: CC-BY-NC-SA 4.0
 */


/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Stitch 2.0 Neo-Cyberpunk Identity */
  --color-bg: #010103;
  --color-bg-secondary: #0a0b12;
  --color-bg-code: #050508;
  --color-text: #e2e8f0;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-primary: #00ffcc;
  /* Neon Mint */
  --color-primary-light: #33ffdb;
  --color-primary-bg: rgba(0, 255, 204, 0.08);
  --color-primary-border: rgba(0, 255, 204, 0.25);
  --color-accent: #ff0055;
  /* Neon Magenta */
  --color-border: #1e293b;
  --color-border-strong: #334155;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  --sidebar-width: 280px;
  --content-max-width: 800px;
  --padding-h: 2.5rem;

  --shadow-sm: 0 1px 2px rgba(0, 255, 204, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 255, 204, 0.1);
  --radius-sm: 6px;
  --radius-md: 8px;
}


/* ============================================================
   RESET & BASE
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
}

/* Stitch 2.0 Global Effects */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(rgba(0, 255, 204, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 204, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  transform: perspective(100vh) rotateX(60deg) translateY(-100px) translateZ(-200px);
  transform-origin: top;
  z-index: -2;
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(0deg,
      transparent,
      transparent 2px,
      rgba(0, 0, 0, 0.1) 2px,
      rgba(0, 0, 0, 0.1) 4px);
  z-index: -1;
  pointer-events: none;
}


/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--color-bg);
  border-right: 1px solid var(--color-border);
  z-index: 100;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Reading progress bar */
.sidebar-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  transition: width 0.15s ease-out;
  z-index: 10;
  border-radius: 0 2px 2px 0;
}

.sidebar-header {
  padding: 1.75rem 1.5rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-logo {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: 0.12em;
  transition: all 0.2s ease;
  text-shadow: 0 0 10px rgba(0, 255, 204, 0.3);
}

.sidebar-logo:hover {
  color: #fff;
  text-shadow: 0 0 15px rgba(0, 255, 204, 0.8);
  text-decoration: none;
}

.sidebar-subtitle {
  display: inline-block;
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  margin-top: 0.4rem;
  text-transform: uppercase;
  background: var(--color-bg-secondary);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  border: 1px solid var(--color-border);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0;
}

/* Group labels */
.sidebar-group-label {
  padding: 1rem 1.5rem 0.4rem;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  -webkit-user-select: none;
  user-select: none;
}

.sidebar-group-label:not(:first-child) {
  margin-top: 0.25rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

/* Nav items */
.sidebar-nav a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.45rem 1.5rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  line-height: 1.5;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
  position: relative;
}

.sidebar-nav a .nav-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-text-muted);
  min-width: 1.2rem;
  opacity: 0.6;
  transition: all 0.15s ease;
}

.sidebar-nav a:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-left-color: var(--color-primary-border);
  text-decoration: none;
}

.sidebar-nav a:hover .nav-num {
  color: var(--color-primary);
  opacity: 1;
}

.sidebar-nav a.active {
  color: var(--color-primary);
  border-left-color: var(--color-primary);
  background: var(--color-primary-bg);
  font-weight: 600;
}

.sidebar-nav a.active .nav-num {
  color: var(--color-primary);
  opacity: 1;
  font-weight: 700;
}

/* Footer */
.sidebar-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.sidebar-footer-label {
  display: block;
  font-size: 0.68rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 0.35rem;
  line-height: 1.4;
}

.sidebar-footer a {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
  opacity: 0.8;
}

.sidebar-footer a:hover {
  opacity: 1;
  text-decoration: none;
}

/* Sidebar scrollbar */
.sidebar-nav::-webkit-scrollbar {
  width: 3px;
}

.sidebar-nav::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}


/* ============================================================
   SIDEBAR TOGGLE (HAMBURGER)
   ============================================================ */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 200;
  width: 40px;
  height: 40px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: border-color 0.15s ease;
  box-shadow: var(--shadow-sm);
}

.sidebar-toggle:hover {
  border-color: var(--color-primary);
}

.sidebar-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all 0.3s ease;
}

/* Hamburger to X animation */
.sidebar-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.sidebar-toggle.active span:nth-child(2) {
  opacity: 0;
}

.sidebar-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 90;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
  opacity: 1;
}


/* ============================================================
   CONTENT AREA
   ============================================================ */
.content {
  margin-left: var(--sidebar-width);
  padding: 2.5rem var(--padding-h) 4rem;
  max-width: calc(var(--content-max-width) + var(--padding-h) * 2);
}


/* ============================================================
   TYPOGRAPHY -- HEADINGS
   ============================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-body);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-primary);
}

h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

h4,
h5,
h6 {
  font-size: 1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
}

em {
  font-style: italic;
}

strong {
  font-weight: 700;
}

/* Prompt marker for headings -- hidden in professional mode */
.prompt {
  display: none;
}


/* ============================================================
   LINKS
   ============================================================ */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.15s ease;
  position: relative;
}

a:hover,
a:focus {
  color: var(--color-primary-light);
  text-shadow: 0 0 8px rgba(0, 255, 204, 0.4);
  outline: none;
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}


/* ============================================================
   TEXT SELECTION
   ============================================================ */
::selection {
  background-color: rgba(37, 99, 235, 0.15);
  color: var(--color-text);
}


/* ============================================================
   CODE BLOCKS
   ============================================================ */
pre,
code {
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

code {
  background-color: var(--color-bg-code);
  color: var(--color-text);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--color-border);
}

/* Terminal block -- generic code */
.terminal-block {
  background: var(--color-bg-code);
  color: var(--color-text);
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border-strong);
  overflow-x: auto;
  margin: 1.5rem 0;
  white-space: pre;
  font-size: 0.85rem;
  line-height: 1.65;
}

/* Scripture block -- TypeScript/Solidity code with primary accent */
.scripture-block {
  background: var(--color-bg-code);
  color: var(--color-text);
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1.5rem 0;
  white-space: pre;
  font-size: 0.85rem;
  line-height: 1.65;
}

/* Remove nested code styling inside blocks */
.terminal-block pre,
.terminal-block code,
.scripture-block pre,
.scripture-block code {
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  font-size: inherit;
  color: inherit;
}


/* ============================================================
   BLOCKQUOTE / EPIGRAPH
   ============================================================ */
blockquote,
.epigraph {
  border-left: 3px solid var(--color-primary);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.epigraph::before,
.epigraph::after {
  content: none;
}

/* Scene break -- section divider */
.scene-break {
  display: block;
  text-align: center;
  margin: 2.5rem auto;
  border: none;
  height: 1px;
  background: var(--color-border);
  font-size: 0;
  color: transparent;
  overflow: hidden;
}

/* Agent thought -- styled as callout for whitepaper context */
.agent-thought {
  display: block;
  font-style: italic;
  color: var(--color-text-secondary);
  padding: 0.75rem 1.25rem;
  border-left: 3px solid var(--color-accent);
  margin: 1.25rem 0;
  background: rgba(5, 150, 105, 0.04);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}


/* ============================================================
   LISTS
   ============================================================ */
ul,
ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

li {
  margin-bottom: 0.3rem;
}

li+li {
  margin-top: 0.15rem;
}


/* ============================================================
   TABLES
   ============================================================ */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

th,
td {
  padding: 0.65rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-bg-secondary);
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

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

tr:hover td {
  background: rgba(37, 99, 235, 0.02);
}

tr:nth-child(even) td {
  background: var(--color-bg-secondary);
}

tr:nth-child(even):hover td {
  background: rgba(37, 99, 235, 0.04);
}


/* ============================================================
   HORIZONTAL RULE
   ============================================================ */
hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: 2rem 0;
}


/* ============================================================
   CHAPTER CONTENT
   ============================================================ */
.wp-chapter {
  animation: fadeIn 0.3s ease;
}

.wp-chapter-content {
  min-height: 50vh;
}


/* ============================================================
   CHAPTER NAVIGATION (Prev / Next)
   ============================================================ */
.wp-chapter-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  margin-top: 3rem;
  gap: 1rem;
}

.wp-chapter-nav a {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 0.875rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  transition: all 0.15s ease;
  max-width: 48%;
}

.wp-chapter-nav a:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  box-shadow: var(--shadow-sm);
}

.wp-nav-prev {
  text-align: left;
}

.wp-nav-next {
  text-align: right;
  margin-left: auto;
}


/* ============================================================
   COVER PAGE
   ============================================================ */
.wp-cover {
  animation: fadeIn 0.4s ease;
}

.wp-cover-hero {
  text-align: center;
  padding: 4rem 0 3rem;
}

.wp-cover-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-accent);
  background: rgba(5, 150, 105, 0.08);
  border: 1px solid rgba(5, 150, 105, 0.2);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.wp-cover-title {
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  line-height: 1.1;
}

.wp-cover-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  font-weight: 300;
  letter-spacing: 0.12em;
  margin-bottom: 2rem;
}

.wp-cover-tagline {
  margin-bottom: 2.5rem;
}

.wp-cover-tagline-ko {
  display: block;
  font-size: 1.2rem;
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.wp-cover-tagline-en {
  display: block;
  font-size: 1rem;
  color: var(--color-text-secondary);
  font-weight: 400;
}

/* Cover stats */
.wp-cover-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.wp-cover-stat {
  text-align: center;
  padding: 1rem 1.5rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 110px;
}

.wp-cover-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.wp-cover-stat-label {
  display: block;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* CTA Button */
.wp-cover-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  color: #ffffff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-md);
}

.wp-cover-cta:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(37, 99, 235, 0.2);
  color: #ffffff;
}

.wp-cover-cta-ko {
  font-weight: 600;
}

.wp-cover-cta-divider {
  opacity: 0.5;
}

.wp-cover-cta-en {
  font-weight: 400;
  opacity: 0.9;
}

.wp-cover-cta-arrow {
  margin-left: 0.25rem;
  transition: transform 0.2s ease;
}

.wp-cover-cta:hover .wp-cover-cta-arrow {
  transform: translateX(3px);
}


/* ============================================================
   TABLE OF CONTENTS
   ============================================================ */
.wp-cover-toc {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.wp-cover-toc h2 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
  border-bottom: none;
  padding-bottom: 0;
}

.chapter-list {
  list-style: none;
  padding: 0;
}

.chapter-list li {
  margin-bottom: 0.4rem;
}

.chapter-list a {
  display: block;
  padding: 0.75rem 1.25rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.15s ease;
  font-size: 0.9rem;
}

.chapter-list a:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
  transform: translateX(3px);
  box-shadow: var(--shadow-sm);
}

.toc-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--color-primary);
  width: 2.5rem;
  font-size: 0.8rem;
  opacity: 0.6;
}


/* ============================================================
   SCROLLBAR STYLING
   ============================================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}


/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}


/* ============================================================
   RESPONSIVE -- DESKTOP (min-width 769px)
   ============================================================ */
@media (min-width: 769px) {
  .sidebar-toggle {
    display: none !important;
  }

  .sidebar-overlay {
    display: none !important;
  }
}


/* ============================================================
   DIAGRAM & FIGURE STYLES
   ============================================================ */
.wp-diagram {
  margin: 2rem 0;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  overflow: hidden;
}

.wp-diagram svg {
  display: block;
  width: 100%;
  height: auto;
}

.wp-diagram figcaption {
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-family: var(--font-body);
}

.wp-diagram-full {
  margin: 2.5rem -1rem;
  border-radius: var(--radius-md);
}

/* Diagram group for side-by-side layouts */
.wp-diagram-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.wp-diagram-row .wp-diagram {
  margin: 0;
}


/* ============================================================
   LANGUAGE TOGGLE
   ============================================================ */

/* Bilingual span defaults — show KO, hide EN (inline elements: nav, headings) */
.wp-ko { display: inline; }
.wp-en { display: none; }
.wp-sep { display: none; }

/* Bilingual body blocks — show KO, hide EN (block-level: full chapter body) */
.wp-body.wp-ko { display: block; }
.wp-body.wp-en { display: none; }

/* When EN mode is active */
html[data-lang="en"] .wp-ko { display: none; }
html[data-lang="en"] .wp-en { display: inline; }
html[data-lang="en"] .wp-sep { display: inline; }
html[data-lang="en"] .wp-body.wp-ko { display: none; }
html[data-lang="en"] .wp-body.wp-en { display: block; }

/* Page title h1 */
.wp-page-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.wp-chapter-header {
  margin-bottom: 0;
}

/* Lang toggle button */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  padding: 4px 10px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-strong);
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--color-text-secondary);
  transition: border-color 0.2s, color 0.2s;
  letter-spacing: 0.03em;
  width: fit-content;
}

.lang-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.lang-toggle__sep {
  color: var(--color-border-strong);
  font-weight: 300;
}

/* Highlight active lang segment */
html[data-lang="ko"] .lang-toggle__ko {
  color: var(--color-primary);
}
html[data-lang="en"] .lang-toggle__en {
  color: var(--color-primary);
}

/* Sidebar nav bilingual: stack as inline, toggle via CSS */
.sidebar-nav a .wp-ko,
.sidebar-nav a .wp-en {
  font-weight: inherit;
}

/* Sidebar group label bilingual */
.sidebar-group-label .wp-ko,
.sidebar-group-label .wp-en {
  font-size: inherit;
  font-weight: inherit;
}


/* ============================================================
   MOBILE APP SCREENSHOTS
   ============================================================ */
.wp-screenshot {
  margin: 2.5rem 0;
  text-align: center;
}

.wp-screenshot__phones {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.wp-screenshot__phones img {
  width: 120px;
  height: auto;
  border-radius: 18px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  border: 2px solid var(--color-primary-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.wp-screenshot__phones img:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 16px 48px rgba(0, 255, 204, 0.15);
}

.wp-screenshot__phones--5 img {
  width: 100px;
}

.wp-screenshot figcaption {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-style: italic;
  max-width: 600px;
  margin: 0 auto;
}


/* ============================================================
   RESPONSIVE -- TABLET & MOBILE (max-width 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --padding-h: 1.25rem;
  }

  html {
    font-size: 15px;
  }

  /* Sidebar hidden by default on mobile */
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.sidebar-open {
    transform: translateX(0);
  }

  /* Show hamburger on mobile */
  .sidebar-toggle {
    display: flex;
  }

  /* Show overlay when sidebar is open */
  .sidebar-overlay.active {
    display: block;
  }

  /* Content takes full width on mobile */
  .content {
    margin-left: 0;
    padding-top: 4rem;
  }

  h1 {
    font-size: 1.6rem;
  }

  h2 {
    font-size: 1.35rem;
  }

  h3 {
    font-size: 1.1rem;
  }

  .wp-cover-title {
    font-size: 2.75rem;
  }

  .wp-cover-stats {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
  }

  .wp-cover-stat {
    min-width: 200px;
  }

  .wp-chapter-nav {
    flex-direction: column;
    align-items: stretch;
  }

  .wp-chapter-nav a {
    max-width: 100%;
  }

  .terminal-block,
  .scripture-block {
    padding: 1rem;
    font-size: 0.8rem;
  }

  .chapter-list a {
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
  }

  .wp-diagram-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .wp-diagram-full {
    margin: 1.5rem -0.5rem;
  }

  /* Tables horizontal scroll on mobile */
  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  th,
  td {
    padding: 0.5rem 0.75rem;
    font-size: 0.8rem;
  }

  .wp-screenshot__phones img {
    width: 80px;
  }

  .wp-screenshot__phones--5 img {
    width: 70px;
  }
}


/* ============================================================
   RESPONSIVE -- SMALL MOBILE (max-width 480px)
   ============================================================ */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .wp-cover-title {
    font-size: 2.25rem;
    letter-spacing: 0.06em;
  }

  .wp-cover-hero {
    padding: 2rem 0;
  }

  .terminal-block,
  .scripture-block {
    padding: 0.75rem;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
  }

  .wp-screenshot__phones img {
    width: 64px;
  }

  .wp-screenshot__phones--5 img {
    width: 56px;
  }
}


/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {

  .sidebar,
  .sidebar-toggle,
  .sidebar-overlay {
    display: none !important;
  }

  body {
    background-color: #ffffff;
    color: #000000;
    font-size: 11pt;
    line-height: 1.5;
  }

  .content {
    margin-left: 0;
    max-width: 100%;
    padding: 0;
  }

  h1 {
    border-bottom-color: #000;
  }

  h2 {
    border-bottom-color: #ccc;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .terminal-block,
  .scripture-block {
    background-color: #f5f5f5;
    border: 1px solid #ccc;
    border-left: 3px solid #666;
  }

  .wp-cover-title {
    color: #000;
  }

  table {
    display: table;
  }

  pre,
  blockquote,
  .terminal-block,
  .scripture-block {
    page-break-inside: avoid;
  }

  h1,
  h2,
  h3 {
    page-break-after: avoid;
  }
}